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1da177e4 LT |
1 | /* |
2 | * Edgeport USB Serial Converter driver | |
3 | * | |
4 | * Copyright (C) 2000-2002 Inside Out Networks, All rights reserved. | |
5 | * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * Supports the following devices: | |
13 | * EP/1 EP/2 EP/4 EP/21 EP/22 EP/221 EP/42 EP/421 WATCHPORT | |
14 | * | |
15 | * For questions or problems with this driver, contact Inside Out | |
16 | * Networks technical support, or Peter Berger <pberger@brimson.com>, | |
17 | * or Al Borchers <alborchers@steinerpoint.com>. | |
18 | * | |
19 | * Version history: | |
20 | * | |
21 | * July 11, 2002 Removed 4 port device structure since all TI UMP | |
22 | * chips have only 2 ports | |
23 | * David Iacovelli (davidi@ionetworks.com) | |
24 | * | |
25 | */ | |
26 | ||
1da177e4 LT |
27 | #include <linux/kernel.h> |
28 | #include <linux/jiffies.h> | |
29 | #include <linux/errno.h> | |
30 | #include <linux/init.h> | |
31 | #include <linux/slab.h> | |
32 | #include <linux/tty.h> | |
33 | #include <linux/tty_driver.h> | |
34 | #include <linux/tty_flip.h> | |
35 | #include <linux/module.h> | |
36 | #include <linux/spinlock.h> | |
241ca64f | 37 | #include <linux/mutex.h> |
1da177e4 LT |
38 | #include <linux/serial.h> |
39 | #include <linux/ioctl.h> | |
d12b219a | 40 | #include <linux/firmware.h> |
1da177e4 | 41 | #include <asm/uaccess.h> |
1da177e4 | 42 | #include <linux/usb.h> |
a969888c | 43 | #include <linux/usb/serial.h> |
1da177e4 | 44 | |
1da177e4 LT |
45 | #include "io_16654.h" |
46 | #include "io_usbvend.h" | |
47 | #include "io_ti.h" | |
48 | ||
49 | /* | |
50 | * Version Information | |
51 | */ | |
fc4cbd75 | 52 | #define DRIVER_VERSION "v0.7mode043006" |
1da177e4 LT |
53 | #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com> and David Iacovelli" |
54 | #define DRIVER_DESC "Edgeport USB Serial Driver" | |
55 | ||
1da177e4 LT |
56 | #define EPROM_PAGE_SIZE 64 |
57 | ||
58 | ||
59 | struct edgeport_uart_buf_desc { | |
60 | __u32 count; // Number of bytes currently in buffer | |
61 | }; | |
62 | ||
63 | /* different hardware types */ | |
64 | #define HARDWARE_TYPE_930 0 | |
65 | #define HARDWARE_TYPE_TIUMP 1 | |
66 | ||
67 | // IOCTL_PRIVATE_TI_GET_MODE Definitions | |
68 | #define TI_MODE_CONFIGURING 0 // Device has not entered start device | |
69 | #define TI_MODE_BOOT 1 // Staying in boot mode | |
70 | #define TI_MODE_DOWNLOAD 2 // Made it to download mode | |
71 | #define TI_MODE_TRANSITIONING 3 // Currently in boot mode but transitioning to download mode | |
72 | ||
73 | /* read urb state */ | |
74 | #define EDGE_READ_URB_RUNNING 0 | |
75 | #define EDGE_READ_URB_STOPPING 1 | |
76 | #define EDGE_READ_URB_STOPPED 2 | |
77 | ||
78 | #define EDGE_LOW_LATENCY 1 | |
79 | #define EDGE_CLOSING_WAIT 4000 /* in .01 sec */ | |
80 | ||
81 | #define EDGE_OUT_BUF_SIZE 1024 | |
82 | ||
83 | ||
84 | /* Product information read from the Edgeport */ | |
85 | struct product_info | |
86 | { | |
87 | int TiMode; // Current TI Mode | |
88 | __u8 hardware_type; // Type of hardware | |
89 | } __attribute__((packed)); | |
90 | ||
91 | /* circular buffer */ | |
92 | struct edge_buf { | |
93 | unsigned int buf_size; | |
94 | char *buf_buf; | |
95 | char *buf_get; | |
96 | char *buf_put; | |
97 | }; | |
98 | ||
99 | struct edgeport_port { | |
100 | __u16 uart_base; | |
101 | __u16 dma_address; | |
102 | __u8 shadow_msr; | |
103 | __u8 shadow_mcr; | |
104 | __u8 shadow_lsr; | |
105 | __u8 lsr_mask; | |
106 | __u32 ump_read_timeout; /* Number of miliseconds the UMP will | |
107 | wait without data before completing | |
108 | a read short */ | |
109 | int baud_rate; | |
110 | int close_pending; | |
111 | int lsr_event; | |
112 | struct edgeport_uart_buf_desc tx; | |
113 | struct async_icount icount; | |
114 | wait_queue_head_t delta_msr_wait; /* for handling sleeping while | |
115 | waiting for msr change to | |
116 | happen */ | |
117 | struct edgeport_serial *edge_serial; | |
118 | struct usb_serial_port *port; | |
119 | __u8 bUartMode; /* Port type, 0: RS232, etc. */ | |
120 | spinlock_t ep_lock; | |
121 | int ep_read_urb_state; | |
122 | int ep_write_urb_in_use; | |
123 | struct edge_buf *ep_out_buf; | |
124 | }; | |
125 | ||
126 | struct edgeport_serial { | |
127 | struct product_info product_info; | |
128 | u8 TI_I2C_Type; // Type of I2C in UMP | |
129 | u8 TiReadI2C; // Set to TRUE if we have read the I2c in Boot Mode | |
241ca64f | 130 | struct mutex es_lock; |
1da177e4 LT |
131 | int num_ports_open; |
132 | struct usb_serial *serial; | |
133 | }; | |
134 | ||
135 | ||
136 | /* Devices that this driver supports */ | |
137 | static struct usb_device_id edgeport_1port_id_table [] = { | |
138 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, | |
139 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, | |
140 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, | |
141 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, | |
142 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, | |
143 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, | |
144 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, | |
145 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, | |
146 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, | |
147 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, | |
148 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, | |
149 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, | |
150 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, | |
151 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, | |
152 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, | |
153 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, | |
154 | { } | |
155 | }; | |
156 | ||
157 | static struct usb_device_id edgeport_2port_id_table [] = { | |
158 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, | |
159 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, | |
160 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, | |
161 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, | |
162 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, | |
163 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, | |
164 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, | |
165 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, | |
166 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, | |
167 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, | |
168 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, | |
169 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, | |
fc4cbd75 | 170 | /* The 4, 8 and 16 port devices show up as multiple 2 port devices */ |
1da177e4 | 171 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, |
fc4cbd75 MP |
172 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
173 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, | |
174 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, | |
175 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, | |
1da177e4 LT |
176 | { } |
177 | }; | |
178 | ||
179 | /* Devices that this driver supports */ | |
180 | static struct usb_device_id id_table_combined [] = { | |
181 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, | |
182 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, | |
183 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, | |
184 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, | |
185 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, | |
186 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, | |
187 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, | |
188 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, | |
189 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, | |
190 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, | |
191 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, | |
192 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, | |
193 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, | |
194 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, | |
195 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, | |
196 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, | |
197 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, | |
198 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, | |
199 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, | |
200 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, | |
201 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, | |
202 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, | |
203 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, | |
204 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, | |
205 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, | |
206 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, | |
207 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, | |
208 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, | |
209 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, | |
fc4cbd75 MP |
210 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
211 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, | |
212 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, | |
213 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, | |
1da177e4 LT |
214 | { } |
215 | }; | |
216 | ||
217 | MODULE_DEVICE_TABLE (usb, id_table_combined); | |
218 | ||
219 | static struct usb_driver io_driver = { | |
1da177e4 LT |
220 | .name = "io_ti", |
221 | .probe = usb_serial_probe, | |
222 | .disconnect = usb_serial_disconnect, | |
223 | .id_table = id_table_combined, | |
ba9dc657 | 224 | .no_dynamic_id = 1, |
1da177e4 LT |
225 | }; |
226 | ||
227 | ||
d12b219a JS |
228 | static unsigned char OperationalMajorVersion; |
229 | static unsigned char OperationalMinorVersion; | |
230 | static unsigned short OperationalBuildNumber; | |
1da177e4 LT |
231 | |
232 | static int debug; | |
233 | ||
234 | static int TIStayInBootMode = 0; | |
235 | static int low_latency = EDGE_LOW_LATENCY; | |
236 | static int closing_wait = EDGE_CLOSING_WAIT; | |
237 | static int ignore_cpu_rev = 0; | |
fc4cbd75 | 238 | static int default_uart_mode = 0; /* RS232 */ |
1da177e4 LT |
239 | |
240 | ||
241 | static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned char *data, int length); | |
242 | ||
243 | static void stop_read(struct edgeport_port *edge_port); | |
244 | static int restart_read(struct edgeport_port *edge_port); | |
245 | ||
606d099c | 246 | static void edge_set_termios (struct usb_serial_port *port, struct ktermios *old_termios); |
1da177e4 LT |
247 | static void edge_send(struct usb_serial_port *port); |
248 | ||
fc4cbd75 MP |
249 | /* sysfs attributes */ |
250 | static int edge_create_sysfs_attrs(struct usb_serial_port *port); | |
251 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port); | |
252 | ||
1da177e4 LT |
253 | /* circular buffer */ |
254 | static struct edge_buf *edge_buf_alloc(unsigned int size); | |
255 | static void edge_buf_free(struct edge_buf *eb); | |
256 | static void edge_buf_clear(struct edge_buf *eb); | |
257 | static unsigned int edge_buf_data_avail(struct edge_buf *eb); | |
258 | static unsigned int edge_buf_space_avail(struct edge_buf *eb); | |
259 | static unsigned int edge_buf_put(struct edge_buf *eb, const char *buf, | |
260 | unsigned int count); | |
261 | static unsigned int edge_buf_get(struct edge_buf *eb, char *buf, | |
262 | unsigned int count); | |
263 | ||
264 | ||
265 | static int TIReadVendorRequestSync (struct usb_device *dev, | |
266 | __u8 request, | |
267 | __u16 value, | |
268 | __u16 index, | |
269 | u8 *data, | |
270 | int size) | |
271 | { | |
272 | int status; | |
273 | ||
274 | status = usb_control_msg (dev, | |
275 | usb_rcvctrlpipe(dev, 0), | |
276 | request, | |
277 | (USB_TYPE_VENDOR | | |
278 | USB_RECIP_DEVICE | | |
279 | USB_DIR_IN), | |
280 | value, | |
281 | index, | |
282 | data, | |
283 | size, | |
284 | 1000); | |
285 | if (status < 0) | |
286 | return status; | |
287 | if (status != size) { | |
288 | dbg ("%s - wanted to write %d, but only wrote %d", | |
441b62c1 | 289 | __func__, size, status); |
1da177e4 LT |
290 | return -ECOMM; |
291 | } | |
292 | return 0; | |
293 | } | |
294 | ||
295 | static int TISendVendorRequestSync (struct usb_device *dev, | |
296 | __u8 request, | |
297 | __u16 value, | |
298 | __u16 index, | |
299 | u8 *data, | |
300 | int size) | |
301 | { | |
302 | int status; | |
303 | ||
304 | status = usb_control_msg (dev, | |
305 | usb_sndctrlpipe(dev, 0), | |
306 | request, | |
307 | (USB_TYPE_VENDOR | | |
308 | USB_RECIP_DEVICE | | |
309 | USB_DIR_OUT), | |
310 | value, | |
311 | index, | |
312 | data, | |
313 | size, | |
314 | 1000); | |
315 | if (status < 0) | |
316 | return status; | |
317 | if (status != size) { | |
318 | dbg ("%s - wanted to write %d, but only wrote %d", | |
441b62c1 | 319 | __func__, size, status); |
1da177e4 LT |
320 | return -ECOMM; |
321 | } | |
322 | return 0; | |
323 | } | |
324 | ||
325 | static int TIWriteCommandSync (struct usb_device *dev, __u8 command, | |
326 | __u8 moduleid, __u16 value, u8 *data, | |
327 | int size) | |
328 | { | |
329 | return TISendVendorRequestSync (dev, | |
330 | command, // Request | |
331 | value, // wValue | |
332 | moduleid, // wIndex | |
333 | data, // TransferBuffer | |
334 | size); // TransferBufferLength | |
335 | ||
336 | } | |
337 | ||
338 | /* clear tx/rx buffers and fifo in TI UMP */ | |
339 | static int TIPurgeDataSync (struct usb_serial_port *port, __u16 mask) | |
340 | { | |
341 | int port_number = port->number - port->serial->minor; | |
342 | ||
441b62c1 | 343 | dbg ("%s - port %d, mask %x", __func__, port_number, mask); |
1da177e4 LT |
344 | |
345 | return TIWriteCommandSync (port->serial->dev, | |
346 | UMPC_PURGE_PORT, | |
347 | (__u8)(UMPM_UART1_PORT + port_number), | |
348 | mask, | |
349 | NULL, | |
350 | 0); | |
351 | } | |
352 | ||
353 | /** | |
354 | * TIReadDownloadMemory - Read edgeport memory from TI chip | |
355 | * @dev: usb device pointer | |
356 | * @start_address: Device CPU address at which to read | |
357 | * @length: Length of above data | |
358 | * @address_type: Can read both XDATA and I2C | |
359 | * @buffer: pointer to input data buffer | |
360 | */ | |
361 | static int TIReadDownloadMemory(struct usb_device *dev, int start_address, | |
362 | int length, __u8 address_type, __u8 *buffer) | |
363 | { | |
364 | int status = 0; | |
365 | __u8 read_length; | |
366 | __be16 be_start_address; | |
367 | ||
441b62c1 | 368 | dbg ("%s - @ %x for %d", __func__, start_address, length); |
1da177e4 LT |
369 | |
370 | /* Read in blocks of 64 bytes | |
371 | * (TI firmware can't handle more than 64 byte reads) | |
372 | */ | |
373 | while (length) { | |
374 | if (length > 64) | |
375 | read_length= 64; | |
376 | else | |
377 | read_length = (__u8)length; | |
378 | ||
379 | if (read_length > 1) { | |
441b62c1 | 380 | dbg ("%s - @ %x for %d", __func__, |
1da177e4 LT |
381 | start_address, read_length); |
382 | } | |
383 | be_start_address = cpu_to_be16 (start_address); | |
384 | status = TIReadVendorRequestSync (dev, | |
385 | UMPC_MEMORY_READ, // Request | |
386 | (__u16)address_type, // wValue (Address type) | |
387 | (__force __u16)be_start_address, // wIndex (Address to read) | |
388 | buffer, // TransferBuffer | |
389 | read_length); // TransferBufferLength | |
390 | ||
391 | if (status) { | |
441b62c1 | 392 | dbg ("%s - ERROR %x", __func__, status); |
1da177e4 LT |
393 | return status; |
394 | } | |
395 | ||
396 | if (read_length > 1) { | |
441b62c1 | 397 | usb_serial_debug_data(debug, &dev->dev, __func__, |
1da177e4 LT |
398 | read_length, buffer); |
399 | } | |
400 | ||
401 | /* Update pointers/length */ | |
402 | start_address += read_length; | |
403 | buffer += read_length; | |
404 | length -= read_length; | |
405 | } | |
406 | ||
407 | return status; | |
408 | } | |
409 | ||
410 | static int TIReadRam (struct usb_device *dev, int start_address, int length, __u8 *buffer) | |
411 | { | |
412 | return TIReadDownloadMemory (dev, | |
413 | start_address, | |
414 | length, | |
415 | DTK_ADDR_SPACE_XDATA, | |
416 | buffer); | |
417 | } | |
418 | ||
419 | /* Read edgeport memory to a given block */ | |
420 | static int TIReadBootMemory (struct edgeport_serial *serial, int start_address, int length, __u8 * buffer) | |
421 | { | |
422 | int status = 0; | |
423 | int i; | |
424 | ||
425 | for (i=0; i< length; i++) { | |
426 | status = TIReadVendorRequestSync (serial->serial->dev, | |
427 | UMPC_MEMORY_READ, // Request | |
428 | serial->TI_I2C_Type, // wValue (Address type) | |
429 | (__u16)(start_address+i), // wIndex | |
430 | &buffer[i], // TransferBuffer | |
431 | 0x01); // TransferBufferLength | |
432 | if (status) { | |
441b62c1 | 433 | dbg ("%s - ERROR %x", __func__, status); |
1da177e4 LT |
434 | return status; |
435 | } | |
436 | } | |
437 | ||
441b62c1 HH |
438 | dbg ("%s - start_address = %x, length = %d", __func__, start_address, length); |
439 | usb_serial_debug_data(debug, &serial->serial->dev->dev, __func__, length, buffer); | |
1da177e4 LT |
440 | |
441 | serial->TiReadI2C = 1; | |
442 | ||
443 | return status; | |
444 | } | |
445 | ||
446 | /* Write given block to TI EPROM memory */ | |
447 | static int TIWriteBootMemory (struct edgeport_serial *serial, int start_address, int length, __u8 *buffer) | |
448 | { | |
449 | int status = 0; | |
450 | int i; | |
451 | __u8 temp; | |
452 | ||
453 | /* Must do a read before write */ | |
454 | if (!serial->TiReadI2C) { | |
455 | status = TIReadBootMemory(serial, 0, 1, &temp); | |
456 | if (status) | |
457 | return status; | |
458 | } | |
459 | ||
460 | for (i=0; i < length; ++i) { | |
461 | status = TISendVendorRequestSync (serial->serial->dev, | |
462 | UMPC_MEMORY_WRITE, // Request | |
463 | buffer[i], // wValue | |
464 | (__u16)(i+start_address), // wIndex | |
465 | NULL, // TransferBuffer | |
466 | 0); // TransferBufferLength | |
467 | if (status) | |
468 | return status; | |
469 | } | |
470 | ||
441b62c1 HH |
471 | dbg ("%s - start_sddr = %x, length = %d", __func__, start_address, length); |
472 | usb_serial_debug_data(debug, &serial->serial->dev->dev, __func__, length, buffer); | |
1da177e4 LT |
473 | |
474 | return status; | |
475 | } | |
476 | ||
477 | ||
478 | /* Write edgeport I2C memory to TI chip */ | |
479 | static int TIWriteDownloadI2C (struct edgeport_serial *serial, int start_address, int length, __u8 address_type, __u8 *buffer) | |
480 | { | |
481 | int status = 0; | |
482 | int write_length; | |
483 | __be16 be_start_address; | |
484 | ||
485 | /* We can only send a maximum of 1 aligned byte page at a time */ | |
486 | ||
487 | /* calulate the number of bytes left in the first page */ | |
488 | write_length = EPROM_PAGE_SIZE - (start_address & (EPROM_PAGE_SIZE - 1)); | |
489 | ||
490 | if (write_length > length) | |
491 | write_length = length; | |
492 | ||
441b62c1 HH |
493 | dbg ("%s - BytesInFirstPage Addr = %x, length = %d", __func__, start_address, write_length); |
494 | usb_serial_debug_data(debug, &serial->serial->dev->dev, __func__, write_length, buffer); | |
1da177e4 LT |
495 | |
496 | /* Write first page */ | |
497 | be_start_address = cpu_to_be16 (start_address); | |
498 | status = TISendVendorRequestSync (serial->serial->dev, | |
499 | UMPC_MEMORY_WRITE, // Request | |
500 | (__u16)address_type, // wValue | |
501 | (__force __u16)be_start_address, // wIndex | |
502 | buffer, // TransferBuffer | |
503 | write_length); | |
504 | if (status) { | |
441b62c1 | 505 | dbg ("%s - ERROR %d", __func__, status); |
1da177e4 LT |
506 | return status; |
507 | } | |
508 | ||
509 | length -= write_length; | |
510 | start_address += write_length; | |
511 | buffer += write_length; | |
512 | ||
513 | /* We should be aligned now -- can write max page size bytes at a time */ | |
514 | while (length) { | |
515 | if (length > EPROM_PAGE_SIZE) | |
516 | write_length = EPROM_PAGE_SIZE; | |
517 | else | |
518 | write_length = length; | |
519 | ||
441b62c1 HH |
520 | dbg ("%s - Page Write Addr = %x, length = %d", __func__, start_address, write_length); |
521 | usb_serial_debug_data(debug, &serial->serial->dev->dev, __func__, write_length, buffer); | |
1da177e4 LT |
522 | |
523 | /* Write next page */ | |
524 | be_start_address = cpu_to_be16 (start_address); | |
525 | status = TISendVendorRequestSync (serial->serial->dev, | |
526 | UMPC_MEMORY_WRITE, // Request | |
527 | (__u16)address_type, // wValue | |
528 | (__force __u16)be_start_address, // wIndex | |
529 | buffer, // TransferBuffer | |
530 | write_length); // TransferBufferLength | |
531 | if (status) { | |
441b62c1 | 532 | dev_err (&serial->serial->dev->dev, "%s - ERROR %d\n", __func__, status); |
1da177e4 LT |
533 | return status; |
534 | } | |
535 | ||
536 | length -= write_length; | |
537 | start_address += write_length; | |
538 | buffer += write_length; | |
539 | } | |
540 | return status; | |
541 | } | |
542 | ||
543 | /* Examine the UMP DMA registers and LSR | |
544 | * | |
545 | * Check the MSBit of the X and Y DMA byte count registers. | |
546 | * A zero in this bit indicates that the TX DMA buffers are empty | |
547 | * then check the TX Empty bit in the UART. | |
548 | */ | |
549 | static int TIIsTxActive (struct edgeport_port *port) | |
550 | { | |
551 | int status; | |
552 | struct out_endpoint_desc_block *oedb; | |
553 | __u8 *lsr; | |
554 | int bytes_left = 0; | |
555 | ||
556 | oedb = kmalloc (sizeof (* oedb), GFP_KERNEL); | |
557 | if (!oedb) { | |
441b62c1 | 558 | dev_err (&port->port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
559 | return -ENOMEM; |
560 | } | |
561 | ||
562 | lsr = kmalloc (1, GFP_KERNEL); /* Sigh, that's right, just one byte, | |
563 | as not all platforms can do DMA | |
564 | from stack */ | |
565 | if (!lsr) { | |
566 | kfree(oedb); | |
567 | return -ENOMEM; | |
568 | } | |
569 | /* Read the DMA Count Registers */ | |
570 | status = TIReadRam (port->port->serial->dev, | |
571 | port->dma_address, | |
572 | sizeof( *oedb), | |
573 | (void *)oedb); | |
574 | ||
575 | if (status) | |
576 | goto exit_is_tx_active; | |
577 | ||
441b62c1 | 578 | dbg ("%s - XByteCount 0x%X", __func__, oedb->XByteCount); |
1da177e4 LT |
579 | |
580 | /* and the LSR */ | |
581 | status = TIReadRam (port->port->serial->dev, | |
582 | port->uart_base + UMPMEM_OFFS_UART_LSR, | |
583 | 1, | |
584 | lsr); | |
585 | ||
586 | if (status) | |
587 | goto exit_is_tx_active; | |
441b62c1 | 588 | dbg ("%s - LSR = 0x%X", __func__, *lsr); |
1da177e4 LT |
589 | |
590 | /* If either buffer has data or we are transmitting then return TRUE */ | |
591 | if ((oedb->XByteCount & 0x80 ) != 0 ) | |
592 | bytes_left += 64; | |
593 | ||
594 | if ((*lsr & UMP_UART_LSR_TX_MASK ) == 0 ) | |
595 | bytes_left += 1; | |
596 | ||
597 | /* We return Not Active if we get any kind of error */ | |
598 | exit_is_tx_active: | |
441b62c1 | 599 | dbg ("%s - return %d", __func__, bytes_left ); |
1da177e4 LT |
600 | |
601 | kfree(lsr); | |
602 | kfree(oedb); | |
603 | return bytes_left; | |
604 | } | |
605 | ||
606 | static void TIChasePort(struct edgeport_port *port, unsigned long timeout, int flush) | |
607 | { | |
608 | int baud_rate; | |
609 | struct tty_struct *tty = port->port->tty; | |
610 | wait_queue_t wait; | |
611 | unsigned long flags; | |
612 | ||
613 | if (!timeout) | |
614 | timeout = (HZ*EDGE_CLOSING_WAIT)/100; | |
615 | ||
616 | /* wait for data to drain from the buffer */ | |
617 | spin_lock_irqsave(&port->ep_lock, flags); | |
618 | init_waitqueue_entry(&wait, current); | |
619 | add_wait_queue(&tty->write_wait, &wait); | |
620 | for (;;) { | |
621 | set_current_state(TASK_INTERRUPTIBLE); | |
622 | if (edge_buf_data_avail(port->ep_out_buf) == 0 | |
623 | || timeout == 0 || signal_pending(current) | |
624 | || !usb_get_intfdata(port->port->serial->interface)) /* disconnect */ | |
625 | break; | |
626 | spin_unlock_irqrestore(&port->ep_lock, flags); | |
627 | timeout = schedule_timeout(timeout); | |
628 | spin_lock_irqsave(&port->ep_lock, flags); | |
629 | } | |
630 | set_current_state(TASK_RUNNING); | |
631 | remove_wait_queue(&tty->write_wait, &wait); | |
632 | if (flush) | |
633 | edge_buf_clear(port->ep_out_buf); | |
634 | spin_unlock_irqrestore(&port->ep_lock, flags); | |
635 | ||
636 | /* wait for data to drain from the device */ | |
637 | timeout += jiffies; | |
638 | while ((long)(jiffies - timeout) < 0 && !signal_pending(current) | |
639 | && usb_get_intfdata(port->port->serial->interface)) { /* not disconnected */ | |
640 | if (!TIIsTxActive(port)) | |
641 | break; | |
642 | msleep(10); | |
643 | } | |
644 | ||
645 | /* disconnected */ | |
646 | if (!usb_get_intfdata(port->port->serial->interface)) | |
647 | return; | |
648 | ||
649 | /* wait one more character time, based on baud rate */ | |
650 | /* (TIIsTxActive doesn't seem to wait for the last byte) */ | |
651 | if ((baud_rate=port->baud_rate) == 0) | |
652 | baud_rate = 50; | |
dfa5ec79 | 653 | msleep(max(1, DIV_ROUND_UP(10000, baud_rate))); |
1da177e4 LT |
654 | } |
655 | ||
656 | static int TIChooseConfiguration (struct usb_device *dev) | |
657 | { | |
658 | // There may be multiple configurations on this device, in which case | |
659 | // we would need to read and parse all of them to find out which one | |
660 | // we want. However, we just support one config at this point, | |
661 | // configuration # 1, which is Config Descriptor 0. | |
662 | ||
441b62c1 HH |
663 | dbg ("%s - Number of Interfaces = %d", __func__, dev->config->desc.bNumInterfaces); |
664 | dbg ("%s - MAX Power = %d", __func__, dev->config->desc.bMaxPower*2); | |
1da177e4 LT |
665 | |
666 | if (dev->config->desc.bNumInterfaces != 1) { | |
441b62c1 | 667 | dev_err (&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n", __func__); |
1da177e4 LT |
668 | return -ENODEV; |
669 | } | |
670 | ||
671 | return 0; | |
672 | } | |
673 | ||
674 | static int TIReadRom (struct edgeport_serial *serial, int start_address, int length, __u8 *buffer) | |
675 | { | |
676 | int status; | |
677 | ||
678 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { | |
679 | status = TIReadDownloadMemory (serial->serial->dev, | |
680 | start_address, | |
681 | length, | |
682 | serial->TI_I2C_Type, | |
683 | buffer); | |
684 | } else { | |
685 | status = TIReadBootMemory (serial, | |
686 | start_address, | |
687 | length, | |
688 | buffer); | |
689 | } | |
690 | ||
691 | return status; | |
692 | } | |
693 | ||
694 | static int TIWriteRom (struct edgeport_serial *serial, int start_address, int length, __u8 *buffer) | |
695 | { | |
696 | if (serial->product_info.TiMode == TI_MODE_BOOT) | |
697 | return TIWriteBootMemory (serial, | |
698 | start_address, | |
699 | length, | |
700 | buffer); | |
701 | ||
702 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) | |
703 | return TIWriteDownloadI2C (serial, | |
704 | start_address, | |
705 | length, | |
706 | serial->TI_I2C_Type, | |
707 | buffer); | |
708 | ||
709 | return -EINVAL; | |
710 | } | |
711 | ||
712 | ||
713 | ||
714 | /* Read a descriptor header from I2C based on type */ | |
715 | static int TIGetDescriptorAddress (struct edgeport_serial *serial, int desc_type, struct ti_i2c_desc *rom_desc) | |
716 | { | |
717 | int start_address; | |
718 | int status; | |
719 | ||
720 | /* Search for requested descriptor in I2C */ | |
721 | start_address = 2; | |
722 | do { | |
723 | status = TIReadRom (serial, | |
724 | start_address, | |
725 | sizeof(struct ti_i2c_desc), | |
726 | (__u8 *)rom_desc ); | |
727 | if (status) | |
728 | return 0; | |
729 | ||
730 | if (rom_desc->Type == desc_type) | |
731 | return start_address; | |
732 | ||
733 | start_address = start_address + sizeof(struct ti_i2c_desc) + rom_desc->Size; | |
734 | ||
735 | } while ((start_address < TI_MAX_I2C_SIZE) && rom_desc->Type); | |
736 | ||
737 | return 0; | |
738 | } | |
739 | ||
740 | /* Validate descriptor checksum */ | |
741 | static int ValidChecksum(struct ti_i2c_desc *rom_desc, __u8 *buffer) | |
742 | { | |
743 | __u16 i; | |
744 | __u8 cs = 0; | |
745 | ||
746 | for (i=0; i < rom_desc->Size; i++) { | |
747 | cs = (__u8)(cs + buffer[i]); | |
748 | } | |
749 | if (cs != rom_desc->CheckSum) { | |
441b62c1 | 750 | dbg ("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs); |
1da177e4 LT |
751 | return -EINVAL; |
752 | } | |
753 | return 0; | |
754 | } | |
755 | ||
756 | /* Make sure that the I2C image is good */ | |
757 | static int TiValidateI2cImage (struct edgeport_serial *serial) | |
758 | { | |
759 | struct device *dev = &serial->serial->dev->dev; | |
760 | int status = 0; | |
761 | struct ti_i2c_desc *rom_desc; | |
762 | int start_address = 2; | |
763 | __u8 *buffer; | |
764 | __u16 ttype; | |
765 | ||
766 | rom_desc = kmalloc (sizeof (*rom_desc), GFP_KERNEL); | |
767 | if (!rom_desc) { | |
441b62c1 | 768 | dev_err (dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
769 | return -ENOMEM; |
770 | } | |
771 | buffer = kmalloc (TI_MAX_I2C_SIZE, GFP_KERNEL); | |
772 | if (!buffer) { | |
441b62c1 | 773 | dev_err (dev, "%s - out of memory when allocating buffer\n", __func__); |
1da177e4 LT |
774 | kfree (rom_desc); |
775 | return -ENOMEM; | |
776 | } | |
777 | ||
778 | // Read the first byte (Signature0) must be 0x52 or 0x10 | |
779 | status = TIReadRom (serial, 0, 1, buffer); | |
780 | if (status) | |
781 | goto ExitTiValidateI2cImage; | |
782 | ||
783 | if (*buffer != UMP5152 && *buffer != UMP3410) { | |
441b62c1 | 784 | dev_err (dev, "%s - invalid buffer signature\n", __func__); |
1da177e4 LT |
785 | status = -ENODEV; |
786 | goto ExitTiValidateI2cImage; | |
787 | } | |
788 | ||
789 | do { | |
790 | // Validate the I2C | |
791 | status = TIReadRom (serial, | |
792 | start_address, | |
793 | sizeof(struct ti_i2c_desc), | |
794 | (__u8 *)rom_desc); | |
795 | if (status) | |
796 | break; | |
797 | ||
798 | if ((start_address + sizeof(struct ti_i2c_desc) + rom_desc->Size) > TI_MAX_I2C_SIZE) { | |
799 | status = -ENODEV; | |
441b62c1 | 800 | dbg ("%s - structure too big, erroring out.", __func__); |
1da177e4 LT |
801 | break; |
802 | } | |
803 | ||
441b62c1 | 804 | dbg ("%s Type = 0x%x", __func__, rom_desc->Type); |
1da177e4 LT |
805 | |
806 | // Skip type 2 record | |
807 | ttype = rom_desc->Type & 0x0f; | |
808 | if ( ttype != I2C_DESC_TYPE_FIRMWARE_BASIC | |
809 | && ttype != I2C_DESC_TYPE_FIRMWARE_AUTO ) { | |
810 | // Read the descriptor data | |
811 | status = TIReadRom(serial, | |
812 | start_address+sizeof(struct ti_i2c_desc), | |
813 | rom_desc->Size, | |
814 | buffer); | |
815 | if (status) | |
816 | break; | |
817 | ||
818 | status = ValidChecksum(rom_desc, buffer); | |
819 | if (status) | |
820 | break; | |
821 | } | |
822 | start_address = start_address + sizeof(struct ti_i2c_desc) + rom_desc->Size; | |
823 | ||
824 | } while ((rom_desc->Type != I2C_DESC_TYPE_ION) && (start_address < TI_MAX_I2C_SIZE)); | |
825 | ||
826 | if ((rom_desc->Type != I2C_DESC_TYPE_ION) || (start_address > TI_MAX_I2C_SIZE)) | |
827 | status = -ENODEV; | |
828 | ||
829 | ExitTiValidateI2cImage: | |
830 | kfree (buffer); | |
831 | kfree (rom_desc); | |
832 | return status; | |
833 | } | |
834 | ||
835 | static int TIReadManufDescriptor (struct edgeport_serial *serial, __u8 *buffer) | |
836 | { | |
837 | int status; | |
838 | int start_address; | |
839 | struct ti_i2c_desc *rom_desc; | |
840 | struct edge_ti_manuf_descriptor *desc; | |
841 | ||
842 | rom_desc = kmalloc (sizeof (*rom_desc), GFP_KERNEL); | |
843 | if (!rom_desc) { | |
441b62c1 | 844 | dev_err (&serial->serial->dev->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
845 | return -ENOMEM; |
846 | } | |
847 | start_address = TIGetDescriptorAddress (serial, I2C_DESC_TYPE_ION, rom_desc); | |
848 | ||
849 | if (!start_address) { | |
441b62c1 | 850 | dbg ("%s - Edge Descriptor not found in I2C", __func__); |
1da177e4 LT |
851 | status = -ENODEV; |
852 | goto exit; | |
853 | } | |
854 | ||
855 | // Read the descriptor data | |
856 | status = TIReadRom (serial, | |
857 | start_address+sizeof(struct ti_i2c_desc), | |
858 | rom_desc->Size, | |
859 | buffer); | |
860 | if (status) | |
861 | goto exit; | |
862 | ||
863 | status = ValidChecksum(rom_desc, buffer); | |
864 | ||
865 | desc = (struct edge_ti_manuf_descriptor *)buffer; | |
441b62c1 HH |
866 | dbg ( "%s - IonConfig 0x%x", __func__, desc->IonConfig ); |
867 | dbg ( "%s - Version %d", __func__, desc->Version ); | |
868 | dbg ( "%s - Cpu/Board 0x%x", __func__, desc->CpuRev_BoardRev ); | |
869 | dbg ( "%s - NumPorts %d", __func__, desc->NumPorts ); | |
870 | dbg ( "%s - NumVirtualPorts %d", __func__, desc->NumVirtualPorts ); | |
871 | dbg ( "%s - TotalPorts %d", __func__, desc->TotalPorts ); | |
1da177e4 LT |
872 | |
873 | exit: | |
874 | kfree (rom_desc); | |
875 | return status; | |
876 | } | |
877 | ||
878 | /* Build firmware header used for firmware update */ | |
879 | static int BuildI2CFirmwareHeader (__u8 *header, struct device *dev) | |
880 | { | |
881 | __u8 *buffer; | |
882 | int buffer_size; | |
883 | int i; | |
d12b219a | 884 | int err; |
1da177e4 LT |
885 | __u8 cs = 0; |
886 | struct ti_i2c_desc *i2c_header; | |
887 | struct ti_i2c_image_header *img_header; | |
888 | struct ti_i2c_firmware_rec *firmware_rec; | |
d12b219a JS |
889 | const struct firmware *fw; |
890 | const char *fw_name = "edgeport/down3.bin"; | |
1da177e4 LT |
891 | |
892 | // In order to update the I2C firmware we must change the type 2 record to type 0xF2. | |
893 | // This will force the UMP to come up in Boot Mode. Then while in boot mode, the driver | |
894 | // will download the latest firmware (padded to 15.5k) into the UMP ram. | |
895 | // And finally when the device comes back up in download mode the driver will cause | |
896 | // the new firmware to be copied from the UMP Ram to I2C and the firmware will update | |
897 | // the record type from 0xf2 to 0x02. | |
898 | ||
899 | // Allocate a 15.5k buffer + 2 bytes for version number (Firmware Record) | |
900 | buffer_size = (((1024 * 16) - 512 )+ sizeof(struct ti_i2c_firmware_rec)); | |
901 | ||
902 | buffer = kmalloc (buffer_size, GFP_KERNEL); | |
903 | if (!buffer) { | |
441b62c1 | 904 | dev_err (dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
905 | return -ENOMEM; |
906 | } | |
907 | ||
908 | // Set entire image of 0xffs | |
909 | memset (buffer, 0xff, buffer_size); | |
910 | ||
d12b219a JS |
911 | err = request_firmware(&fw, fw_name, dev); |
912 | if (err) { | |
913 | printk(KERN_ERR "Failed to load image \"%s\" err %d\n", | |
914 | fw_name, err); | |
915 | kfree(buffer); | |
916 | return err; | |
917 | } | |
918 | ||
919 | /* Save Download Version Number */ | |
920 | OperationalMajorVersion = fw->data[0]; | |
921 | OperationalMinorVersion = fw->data[1]; | |
922 | OperationalBuildNumber = fw->data[2] | (fw->data[3] << 8); | |
923 | ||
1da177e4 LT |
924 | // Copy version number into firmware record |
925 | firmware_rec = (struct ti_i2c_firmware_rec *)buffer; | |
926 | ||
d12b219a JS |
927 | firmware_rec->Ver_Major = OperationalMajorVersion; |
928 | firmware_rec->Ver_Minor = OperationalMinorVersion; | |
1da177e4 LT |
929 | |
930 | // Pointer to fw_down memory image | |
d12b219a | 931 | img_header = (struct ti_i2c_image_header *)&fw->data[4]; |
1da177e4 LT |
932 | |
933 | memcpy (buffer + sizeof(struct ti_i2c_firmware_rec), | |
d12b219a | 934 | &fw->data[4 + sizeof(struct ti_i2c_image_header)], |
1da177e4 LT |
935 | le16_to_cpu(img_header->Length)); |
936 | ||
d12b219a JS |
937 | release_firmware(fw); |
938 | ||
1da177e4 LT |
939 | for (i=0; i < buffer_size; i++) { |
940 | cs = (__u8)(cs + buffer[i]); | |
941 | } | |
942 | ||
943 | kfree (buffer); | |
944 | ||
945 | // Build new header | |
946 | i2c_header = (struct ti_i2c_desc *)header; | |
947 | firmware_rec = (struct ti_i2c_firmware_rec*)i2c_header->Data; | |
948 | ||
949 | i2c_header->Type = I2C_DESC_TYPE_FIRMWARE_BLANK; | |
950 | i2c_header->Size = (__u16)buffer_size; | |
951 | i2c_header->CheckSum = cs; | |
d12b219a JS |
952 | firmware_rec->Ver_Major = OperationalMajorVersion; |
953 | firmware_rec->Ver_Minor = OperationalMinorVersion; | |
1da177e4 LT |
954 | |
955 | return 0; | |
956 | } | |
957 | ||
958 | /* Try to figure out what type of I2c we have */ | |
959 | static int TIGetI2cTypeInBootMode (struct edgeport_serial *serial) | |
960 | { | |
961 | int status; | |
962 | __u8 data; | |
963 | ||
964 | // Try to read type 2 | |
965 | status = TIReadVendorRequestSync (serial->serial->dev, | |
966 | UMPC_MEMORY_READ, // Request | |
967 | DTK_ADDR_SPACE_I2C_TYPE_II, // wValue (Address type) | |
968 | 0, // wIndex | |
969 | &data, // TransferBuffer | |
970 | 0x01); // TransferBufferLength | |
971 | if (status) | |
441b62c1 | 972 | dbg ("%s - read 2 status error = %d", __func__, status); |
1da177e4 | 973 | else |
441b62c1 | 974 | dbg ("%s - read 2 data = 0x%x", __func__, data); |
1da177e4 | 975 | if ((!status) && (data == UMP5152 || data == UMP3410)) { |
441b62c1 | 976 | dbg ("%s - ROM_TYPE_II", __func__); |
1da177e4 LT |
977 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
978 | return 0; | |
979 | } | |
980 | ||
981 | // Try to read type 3 | |
982 | status = TIReadVendorRequestSync (serial->serial->dev, | |
983 | UMPC_MEMORY_READ, // Request | |
984 | DTK_ADDR_SPACE_I2C_TYPE_III, // wValue (Address type) | |
985 | 0, // wIndex | |
986 | &data, // TransferBuffer | |
987 | 0x01); // TransferBufferLength | |
988 | if (status) | |
441b62c1 | 989 | dbg ("%s - read 3 status error = %d", __func__, status); |
1da177e4 | 990 | else |
441b62c1 | 991 | dbg ("%s - read 2 data = 0x%x", __func__, data); |
1da177e4 | 992 | if ((!status) && (data == UMP5152 || data == UMP3410)) { |
441b62c1 | 993 | dbg ("%s - ROM_TYPE_III", __func__); |
1da177e4 LT |
994 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III; |
995 | return 0; | |
996 | } | |
997 | ||
441b62c1 | 998 | dbg ("%s - Unknown", __func__); |
1da177e4 LT |
999 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
1000 | return -ENODEV; | |
1001 | } | |
1002 | ||
1003 | static int TISendBulkTransferSync (struct usb_serial *serial, void *buffer, int length, int *num_sent) | |
1004 | { | |
1005 | int status; | |
1006 | ||
1007 | status = usb_bulk_msg (serial->dev, | |
1008 | usb_sndbulkpipe(serial->dev, | |
1009 | serial->port[0]->bulk_out_endpointAddress), | |
1010 | buffer, | |
1011 | length, | |
1012 | num_sent, | |
1013 | 1000); | |
1014 | return status; | |
1015 | } | |
1016 | ||
1017 | /* Download given firmware image to the device (IN BOOT MODE) */ | |
1018 | static int TIDownloadCodeImage (struct edgeport_serial *serial, __u8 *image, int image_length) | |
1019 | { | |
1020 | int status = 0; | |
1021 | int pos; | |
1022 | int transfer; | |
1023 | int done; | |
1024 | ||
1025 | // Transfer firmware image | |
1026 | for (pos = 0; pos < image_length; ) { | |
1027 | // Read the next buffer from file | |
1028 | transfer = image_length - pos; | |
1029 | if (transfer > EDGE_FW_BULK_MAX_PACKET_SIZE) | |
1030 | transfer = EDGE_FW_BULK_MAX_PACKET_SIZE; | |
1031 | ||
1032 | // Transfer data | |
1033 | status = TISendBulkTransferSync (serial->serial, &image[pos], transfer, &done); | |
1034 | if (status) | |
1035 | break; | |
1036 | // Advance buffer pointer | |
1037 | pos += done; | |
1038 | } | |
1039 | ||
1040 | return status; | |
1041 | } | |
1042 | ||
1043 | // FIXME!!! | |
1044 | static int TIConfigureBootDevice (struct usb_device *dev) | |
1045 | { | |
1046 | return 0; | |
1047 | } | |
1048 | ||
1049 | /** | |
1050 | * DownloadTIFirmware - Download run-time operating firmware to the TI5052 | |
1051 | * | |
1052 | * This routine downloads the main operating code into the TI5052, using the | |
1053 | * boot code already burned into E2PROM or ROM. | |
1054 | */ | |
1055 | static int TIDownloadFirmware (struct edgeport_serial *serial) | |
1056 | { | |
1057 | struct device *dev = &serial->serial->dev->dev; | |
1058 | int status = 0; | |
1059 | int start_address; | |
1060 | struct edge_ti_manuf_descriptor *ti_manuf_desc; | |
1061 | struct usb_interface_descriptor *interface; | |
1062 | int download_cur_ver; | |
1063 | int download_new_ver; | |
1064 | ||
1065 | /* This routine is entered by both the BOOT mode and the Download mode | |
1066 | * We can determine which code is running by the reading the config | |
1067 | * descriptor and if we have only one bulk pipe it is in boot mode | |
1068 | */ | |
1069 | serial->product_info.hardware_type = HARDWARE_TYPE_TIUMP; | |
1070 | ||
1071 | /* Default to type 2 i2c */ | |
1072 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; | |
1073 | ||
1074 | status = TIChooseConfiguration (serial->serial->dev); | |
1075 | if (status) | |
1076 | return status; | |
1077 | ||
1078 | interface = &serial->serial->interface->cur_altsetting->desc; | |
1079 | if (!interface) { | |
441b62c1 | 1080 | dev_err (dev, "%s - no interface set, error!\n", __func__); |
1da177e4 LT |
1081 | return -ENODEV; |
1082 | } | |
1083 | ||
1084 | // Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING | |
1085 | // if we have more than one endpoint we are definitely in download mode | |
1086 | if (interface->bNumEndpoints > 1) | |
1087 | serial->product_info.TiMode = TI_MODE_DOWNLOAD; | |
1088 | else | |
1089 | // Otherwise we will remain in configuring mode | |
1090 | serial->product_info.TiMode = TI_MODE_CONFIGURING; | |
1091 | ||
1da177e4 LT |
1092 | /********************************************************************/ |
1093 | /* Download Mode */ | |
1094 | /********************************************************************/ | |
1095 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { | |
1096 | struct ti_i2c_desc *rom_desc; | |
1097 | ||
9544e833 | 1098 | dbg("%s - RUNNING IN DOWNLOAD MODE", __func__); |
1da177e4 LT |
1099 | |
1100 | status = TiValidateI2cImage (serial); | |
1101 | if (status) { | |
9544e833 | 1102 | dbg("%s - DOWNLOAD MODE -- BAD I2C", __func__); |
1da177e4 LT |
1103 | return status; |
1104 | } | |
1105 | ||
1106 | /* Validate Hardware version number | |
1107 | * Read Manufacturing Descriptor from TI Based Edgeport | |
1108 | */ | |
1109 | ti_manuf_desc = kmalloc (sizeof (*ti_manuf_desc), GFP_KERNEL); | |
1110 | if (!ti_manuf_desc) { | |
441b62c1 | 1111 | dev_err (dev, "%s - out of memory.\n", __func__); |
1da177e4 LT |
1112 | return -ENOMEM; |
1113 | } | |
1114 | status = TIReadManufDescriptor (serial, (__u8 *)ti_manuf_desc); | |
1115 | if (status) { | |
1116 | kfree (ti_manuf_desc); | |
1117 | return status; | |
1118 | } | |
1119 | ||
1120 | // Check version number of ION descriptor | |
1121 | if (!ignore_cpu_rev && TI_GET_CPU_REVISION(ti_manuf_desc->CpuRev_BoardRev) < 2) { | |
441b62c1 | 1122 | dbg ( "%s - Wrong CPU Rev %d (Must be 2)", __func__, |
1da177e4 LT |
1123 | TI_GET_CPU_REVISION(ti_manuf_desc->CpuRev_BoardRev)); |
1124 | kfree (ti_manuf_desc); | |
1125 | return -EINVAL; | |
1126 | } | |
1127 | ||
1128 | rom_desc = kmalloc (sizeof (*rom_desc), GFP_KERNEL); | |
1129 | if (!rom_desc) { | |
441b62c1 | 1130 | dev_err (dev, "%s - out of memory.\n", __func__); |
1da177e4 LT |
1131 | kfree (ti_manuf_desc); |
1132 | return -ENOMEM; | |
1133 | } | |
1134 | ||
1135 | // Search for type 2 record (firmware record) | |
1136 | if ((start_address = TIGetDescriptorAddress (serial, I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc)) != 0) { | |
1137 | struct ti_i2c_firmware_rec *firmware_version; | |
1138 | __u8 record; | |
1139 | ||
441b62c1 | 1140 | dbg ("%s - Found Type FIRMWARE (Type 2) record", __func__); |
1da177e4 LT |
1141 | |
1142 | firmware_version = kmalloc (sizeof (*firmware_version), GFP_KERNEL); | |
1143 | if (!firmware_version) { | |
441b62c1 | 1144 | dev_err (dev, "%s - out of memory.\n", __func__); |
1da177e4 LT |
1145 | kfree (rom_desc); |
1146 | kfree (ti_manuf_desc); | |
1147 | return -ENOMEM; | |
1148 | } | |
1149 | ||
1150 | // Validate version number | |
1151 | // Read the descriptor data | |
1152 | status = TIReadRom (serial, | |
1153 | start_address+sizeof(struct ti_i2c_desc), | |
1154 | sizeof(struct ti_i2c_firmware_rec), | |
1155 | (__u8 *)firmware_version); | |
1156 | if (status) { | |
1157 | kfree (firmware_version); | |
1158 | kfree (rom_desc); | |
1159 | kfree (ti_manuf_desc); | |
1160 | return status; | |
1161 | } | |
1162 | ||
1163 | // Check version number of download with current version in I2c | |
1164 | download_cur_ver = (firmware_version->Ver_Major << 8) + | |
1165 | (firmware_version->Ver_Minor); | |
d12b219a JS |
1166 | download_new_ver = (OperationalMajorVersion << 8) + |
1167 | (OperationalMinorVersion); | |
1da177e4 LT |
1168 | |
1169 | dbg ("%s - >>>Firmware Versions Device %d.%d Driver %d.%d", | |
441b62c1 | 1170 | __func__, |
1da177e4 LT |
1171 | firmware_version->Ver_Major, |
1172 | firmware_version->Ver_Minor, | |
d12b219a JS |
1173 | OperationalMajorVersion, |
1174 | OperationalMinorVersion); | |
1da177e4 LT |
1175 | |
1176 | // Check if we have an old version in the I2C and update if necessary | |
1177 | if (download_cur_ver != download_new_ver) { | |
1178 | dbg ("%s - Update I2C Download from %d.%d to %d.%d", | |
441b62c1 | 1179 | __func__, |
1da177e4 LT |
1180 | firmware_version->Ver_Major, |
1181 | firmware_version->Ver_Minor, | |
d12b219a JS |
1182 | OperationalMajorVersion, |
1183 | OperationalMinorVersion); | |
1da177e4 LT |
1184 | |
1185 | // In order to update the I2C firmware we must change the type 2 record to type 0xF2. | |
1186 | // This will force the UMP to come up in Boot Mode. Then while in boot mode, the driver | |
1187 | // will download the latest firmware (padded to 15.5k) into the UMP ram. | |
1188 | // And finally when the device comes back up in download mode the driver will cause | |
1189 | // the new firmware to be copied from the UMP Ram to I2C and the firmware will update | |
1190 | // the record type from 0xf2 to 0x02. | |
1191 | ||
1192 | record = I2C_DESC_TYPE_FIRMWARE_BLANK; | |
1193 | ||
1194 | // Change the I2C Firmware record type to 0xf2 to trigger an update | |
1195 | status = TIWriteRom (serial, | |
1196 | start_address, | |
1197 | sizeof(record), | |
1198 | &record); | |
1199 | if (status) { | |
1200 | kfree (firmware_version); | |
1201 | kfree (rom_desc); | |
1202 | kfree (ti_manuf_desc); | |
1203 | return status; | |
1204 | } | |
1205 | ||
1206 | // verify the write -- must do this in order for write to | |
1207 | // complete before we do the hardware reset | |
1208 | status = TIReadRom (serial, | |
1209 | start_address, | |
1210 | sizeof(record), | |
1211 | &record); | |
1212 | ||
1213 | if (status) { | |
1214 | kfree (firmware_version); | |
1215 | kfree (rom_desc); | |
1216 | kfree (ti_manuf_desc); | |
1217 | return status; | |
1218 | } | |
1219 | ||
1220 | if (record != I2C_DESC_TYPE_FIRMWARE_BLANK) { | |
441b62c1 | 1221 | dev_err (dev, "%s - error resetting device\n", __func__); |
1da177e4 LT |
1222 | kfree (firmware_version); |
1223 | kfree (rom_desc); | |
1224 | kfree (ti_manuf_desc); | |
1225 | return -ENODEV; | |
1226 | } | |
1227 | ||
441b62c1 | 1228 | dbg ("%s - HARDWARE RESET", __func__); |
1da177e4 LT |
1229 | |
1230 | // Reset UMP -- Back to BOOT MODE | |
1231 | status = TISendVendorRequestSync (serial->serial->dev, | |
1232 | UMPC_HARDWARE_RESET, // Request | |
1233 | 0, // wValue | |
1234 | 0, // wIndex | |
1235 | NULL, // TransferBuffer | |
1236 | 0); // TransferBufferLength | |
1237 | ||
441b62c1 | 1238 | dbg ( "%s - HARDWARE RESET return %d", __func__, status); |
1da177e4 LT |
1239 | |
1240 | /* return an error on purpose. */ | |
1241 | kfree (firmware_version); | |
1242 | kfree (rom_desc); | |
1243 | kfree (ti_manuf_desc); | |
1244 | return -ENODEV; | |
1245 | } | |
1246 | kfree (firmware_version); | |
1247 | } | |
1248 | // Search for type 0xF2 record (firmware blank record) | |
1249 | else if ((start_address = TIGetDescriptorAddress (serial, I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc)) != 0) { | |
1250 | #define HEADER_SIZE (sizeof(struct ti_i2c_desc) + sizeof(struct ti_i2c_firmware_rec)) | |
1251 | __u8 *header; | |
1252 | __u8 *vheader; | |
1253 | ||
1254 | header = kmalloc (HEADER_SIZE, GFP_KERNEL); | |
1255 | if (!header) { | |
441b62c1 | 1256 | dev_err (dev, "%s - out of memory.\n", __func__); |
1da177e4 LT |
1257 | kfree (rom_desc); |
1258 | kfree (ti_manuf_desc); | |
1259 | return -ENOMEM; | |
1260 | } | |
1261 | ||
1262 | vheader = kmalloc (HEADER_SIZE, GFP_KERNEL); | |
1263 | if (!vheader) { | |
441b62c1 | 1264 | dev_err (dev, "%s - out of memory.\n", __func__); |
1da177e4 LT |
1265 | kfree (header); |
1266 | kfree (rom_desc); | |
1267 | kfree (ti_manuf_desc); | |
1268 | return -ENOMEM; | |
1269 | } | |
1270 | ||
441b62c1 | 1271 | dbg ("%s - Found Type BLANK FIRMWARE (Type F2) record", __func__); |
1da177e4 LT |
1272 | |
1273 | // In order to update the I2C firmware we must change the type 2 record to type 0xF2. | |
1274 | // This will force the UMP to come up in Boot Mode. Then while in boot mode, the driver | |
1275 | // will download the latest firmware (padded to 15.5k) into the UMP ram. | |
1276 | // And finally when the device comes back up in download mode the driver will cause | |
1277 | // the new firmware to be copied from the UMP Ram to I2C and the firmware will update | |
1278 | // the record type from 0xf2 to 0x02. | |
1279 | status = BuildI2CFirmwareHeader(header, dev); | |
1280 | if (status) { | |
1281 | kfree (vheader); | |
1282 | kfree (header); | |
1283 | kfree (rom_desc); | |
1284 | kfree (ti_manuf_desc); | |
1285 | return status; | |
1286 | } | |
1287 | ||
1288 | // Update I2C with type 0xf2 record with correct size and checksum | |
1289 | status = TIWriteRom (serial, | |
1290 | start_address, | |
1291 | HEADER_SIZE, | |
1292 | header); | |
1293 | if (status) { | |
1294 | kfree (vheader); | |
1295 | kfree (header); | |
1296 | kfree (rom_desc); | |
1297 | kfree (ti_manuf_desc); | |
1298 | return status; | |
1299 | } | |
1300 | ||
1301 | // verify the write -- must do this in order for write to | |
1302 | // complete before we do the hardware reset | |
1303 | status = TIReadRom (serial, | |
1304 | start_address, | |
1305 | HEADER_SIZE, | |
1306 | vheader); | |
1307 | ||
1308 | if (status) { | |
441b62c1 | 1309 | dbg ("%s - can't read header back", __func__); |
1da177e4 LT |
1310 | kfree (vheader); |
1311 | kfree (header); | |
1312 | kfree (rom_desc); | |
1313 | kfree (ti_manuf_desc); | |
1314 | return status; | |
1315 | } | |
1316 | if (memcmp(vheader, header, HEADER_SIZE)) { | |
441b62c1 | 1317 | dbg ("%s - write download record failed", __func__); |
1da177e4 LT |
1318 | kfree (vheader); |
1319 | kfree (header); | |
1320 | kfree (rom_desc); | |
1321 | kfree (ti_manuf_desc); | |
1322 | return status; | |
1323 | } | |
1324 | ||
1325 | kfree (vheader); | |
1326 | kfree (header); | |
1327 | ||
441b62c1 | 1328 | dbg ("%s - Start firmware update", __func__); |
1da177e4 LT |
1329 | |
1330 | // Tell firmware to copy download image into I2C | |
1331 | status = TISendVendorRequestSync (serial->serial->dev, | |
1332 | UMPC_COPY_DNLD_TO_I2C, // Request | |
1333 | 0, // wValue | |
1334 | 0, // wIndex | |
1335 | NULL, // TransferBuffer | |
1336 | 0); // TransferBufferLength | |
1337 | ||
441b62c1 | 1338 | dbg ("%s - Update complete 0x%x", __func__, status); |
1da177e4 | 1339 | if (status) { |
441b62c1 | 1340 | dev_err (dev, "%s - UMPC_COPY_DNLD_TO_I2C failed\n", __func__); |
1da177e4 LT |
1341 | kfree (rom_desc); |
1342 | kfree (ti_manuf_desc); | |
1343 | return status; | |
1344 | } | |
1345 | } | |
1346 | ||
1347 | // The device is running the download code | |
1348 | kfree (rom_desc); | |
1349 | kfree (ti_manuf_desc); | |
1350 | return 0; | |
1351 | } | |
1352 | ||
1353 | /********************************************************************/ | |
1354 | /* Boot Mode */ | |
1355 | /********************************************************************/ | |
9544e833 | 1356 | dbg("%s - RUNNING IN BOOT MODE", __func__); |
1da177e4 LT |
1357 | |
1358 | // Configure the TI device so we can use the BULK pipes for download | |
1359 | status = TIConfigureBootDevice (serial->serial->dev); | |
1360 | if (status) | |
1361 | return status; | |
1362 | ||
1363 | if (le16_to_cpu(serial->serial->dev->descriptor.idVendor) != USB_VENDOR_ID_ION) { | |
441b62c1 | 1364 | dbg ("%s - VID = 0x%x", __func__, |
1da177e4 LT |
1365 | le16_to_cpu(serial->serial->dev->descriptor.idVendor)); |
1366 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; | |
1367 | goto StayInBootMode; | |
1368 | } | |
1369 | ||
1370 | // We have an ION device (I2c Must be programmed) | |
1371 | // Determine I2C image type | |
1372 | if (TIGetI2cTypeInBootMode(serial)) { | |
1373 | goto StayInBootMode; | |
1374 | } | |
1375 | ||
1376 | // Registry variable set? | |
1377 | if (TIStayInBootMode) { | |
441b62c1 | 1378 | dbg ("%s - TIStayInBootMode", __func__); |
1da177e4 LT |
1379 | goto StayInBootMode; |
1380 | } | |
1381 | ||
1382 | // Check for ION Vendor ID and that the I2C is valid | |
1383 | if (!TiValidateI2cImage(serial)) { | |
1384 | struct ti_i2c_image_header *header; | |
1385 | int i; | |
1386 | __u8 cs = 0; | |
1387 | __u8 *buffer; | |
1388 | int buffer_size; | |
d12b219a JS |
1389 | int err; |
1390 | const struct firmware *fw; | |
1391 | const char *fw_name = "edgeport/down3.bin"; | |
1da177e4 LT |
1392 | |
1393 | /* Validate Hardware version number | |
1394 | * Read Manufacturing Descriptor from TI Based Edgeport | |
1395 | */ | |
1396 | ti_manuf_desc = kmalloc (sizeof (*ti_manuf_desc), GFP_KERNEL); | |
1397 | if (!ti_manuf_desc) { | |
441b62c1 | 1398 | dev_err (dev, "%s - out of memory.\n", __func__); |
1da177e4 LT |
1399 | return -ENOMEM; |
1400 | } | |
1401 | status = TIReadManufDescriptor (serial, (__u8 *)ti_manuf_desc); | |
1402 | if (status) { | |
1403 | kfree (ti_manuf_desc); | |
1404 | goto StayInBootMode; | |
1405 | } | |
1406 | ||
1407 | // Check for version 2 | |
1408 | if (!ignore_cpu_rev && TI_GET_CPU_REVISION(ti_manuf_desc->CpuRev_BoardRev) < 2) { | |
441b62c1 | 1409 | dbg ("%s - Wrong CPU Rev %d (Must be 2)", __func__, |
1da177e4 LT |
1410 | TI_GET_CPU_REVISION(ti_manuf_desc->CpuRev_BoardRev)); |
1411 | kfree (ti_manuf_desc); | |
1412 | goto StayInBootMode; | |
1413 | } | |
1414 | ||
1415 | kfree (ti_manuf_desc); | |
1416 | ||
1417 | // In order to update the I2C firmware we must change the type 2 record to type 0xF2. | |
1418 | // This will force the UMP to come up in Boot Mode. Then while in boot mode, the driver | |
1419 | // will download the latest firmware (padded to 15.5k) into the UMP ram. | |
1420 | // And finally when the device comes back up in download mode the driver will cause | |
1421 | // the new firmware to be copied from the UMP Ram to I2C and the firmware will update | |
1422 | // the record type from 0xf2 to 0x02. | |
1423 | ||
1424 | /* | |
1425 | * Do we really have to copy the whole firmware image, | |
1426 | * or could we do this in place! | |
1427 | */ | |
1428 | ||
1429 | // Allocate a 15.5k buffer + 3 byte header | |
1430 | buffer_size = (((1024 * 16) - 512) + sizeof(struct ti_i2c_image_header)); | |
1431 | buffer = kmalloc (buffer_size, GFP_KERNEL); | |
1432 | if (!buffer) { | |
441b62c1 | 1433 | dev_err (dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
1434 | return -ENOMEM; |
1435 | } | |
1436 | ||
1437 | // Initialize the buffer to 0xff (pad the buffer) | |
1438 | memset (buffer, 0xff, buffer_size); | |
1439 | ||
d12b219a JS |
1440 | err = request_firmware(&fw, fw_name, dev); |
1441 | if (err) { | |
1442 | printk(KERN_ERR "Failed to load image \"%s\" err %d\n", | |
1443 | fw_name, err); | |
1444 | kfree(buffer); | |
1445 | return err; | |
1446 | } | |
1447 | memcpy(buffer, &fw->data[4], fw->size - 4); | |
1448 | release_firmware(fw); | |
1da177e4 LT |
1449 | |
1450 | for(i = sizeof(struct ti_i2c_image_header); i < buffer_size; i++) { | |
1451 | cs = (__u8)(cs + buffer[i]); | |
1452 | } | |
1453 | ||
1454 | header = (struct ti_i2c_image_header *)buffer; | |
1455 | ||
1456 | // update length and checksum after padding | |
1457 | header->Length = cpu_to_le16((__u16)(buffer_size - sizeof(struct ti_i2c_image_header))); | |
1458 | header->CheckSum = cs; | |
1459 | ||
1460 | // Download the operational code | |
441b62c1 | 1461 | dbg ("%s - Downloading operational code image (TI UMP)", __func__); |
1da177e4 LT |
1462 | status = TIDownloadCodeImage (serial, buffer, buffer_size); |
1463 | ||
1464 | kfree (buffer); | |
1465 | ||
1466 | if (status) { | |
441b62c1 | 1467 | dbg ("%s - Error downloading operational code image", __func__); |
1da177e4 LT |
1468 | return status; |
1469 | } | |
1470 | ||
1471 | // Device will reboot | |
1472 | serial->product_info.TiMode = TI_MODE_TRANSITIONING; | |
1473 | ||
441b62c1 | 1474 | dbg ("%s - Download successful -- Device rebooting...", __func__); |
1da177e4 LT |
1475 | |
1476 | /* return an error on purpose */ | |
1477 | return -ENODEV; | |
1478 | } | |
1479 | ||
1480 | StayInBootMode: | |
1481 | // Eprom is invalid or blank stay in boot mode | |
9544e833 | 1482 | dbg("%s - STAYING IN BOOT MODE", __func__); |
1da177e4 LT |
1483 | serial->product_info.TiMode = TI_MODE_BOOT; |
1484 | ||
1485 | return 0; | |
1486 | } | |
1487 | ||
1488 | ||
1489 | static int TISetDtr (struct edgeport_port *port) | |
1490 | { | |
1491 | int port_number = port->port->number - port->port->serial->minor; | |
1492 | ||
441b62c1 | 1493 | dbg ("%s", __func__); |
1da177e4 LT |
1494 | port->shadow_mcr |= MCR_DTR; |
1495 | ||
1496 | return TIWriteCommandSync (port->port->serial->dev, | |
1497 | UMPC_SET_CLR_DTR, | |
1498 | (__u8)(UMPM_UART1_PORT + port_number), | |
1499 | 1, /* set */ | |
1500 | NULL, | |
1501 | 0); | |
1502 | } | |
1503 | ||
1504 | static int TIClearDtr (struct edgeport_port *port) | |
1505 | { | |
1506 | int port_number = port->port->number - port->port->serial->minor; | |
1507 | ||
441b62c1 | 1508 | dbg ("%s", __func__); |
1da177e4 LT |
1509 | port->shadow_mcr &= ~MCR_DTR; |
1510 | ||
1511 | return TIWriteCommandSync (port->port->serial->dev, | |
1512 | UMPC_SET_CLR_DTR, | |
1513 | (__u8)(UMPM_UART1_PORT + port_number), | |
1514 | 0, /* clear */ | |
1515 | NULL, | |
1516 | 0); | |
1517 | } | |
1518 | ||
1519 | static int TISetRts (struct edgeport_port *port) | |
1520 | { | |
1521 | int port_number = port->port->number - port->port->serial->minor; | |
1522 | ||
441b62c1 | 1523 | dbg ("%s", __func__); |
1da177e4 LT |
1524 | port->shadow_mcr |= MCR_RTS; |
1525 | ||
1526 | return TIWriteCommandSync (port->port->serial->dev, | |
1527 | UMPC_SET_CLR_RTS, | |
1528 | (__u8)(UMPM_UART1_PORT + port_number), | |
1529 | 1, /* set */ | |
1530 | NULL, | |
1531 | 0); | |
1532 | } | |
1533 | ||
1534 | static int TIClearRts (struct edgeport_port *port) | |
1535 | { | |
1536 | int port_number = port->port->number - port->port->serial->minor; | |
1537 | ||
441b62c1 | 1538 | dbg ("%s", __func__); |
1da177e4 LT |
1539 | port->shadow_mcr &= ~MCR_RTS; |
1540 | ||
1541 | return TIWriteCommandSync (port->port->serial->dev, | |
1542 | UMPC_SET_CLR_RTS, | |
1543 | (__u8)(UMPM_UART1_PORT + port_number), | |
1544 | 0, /* clear */ | |
1545 | NULL, | |
1546 | 0); | |
1547 | } | |
1548 | ||
1549 | static int TISetLoopBack (struct edgeport_port *port) | |
1550 | { | |
1551 | int port_number = port->port->number - port->port->serial->minor; | |
1552 | ||
441b62c1 | 1553 | dbg ("%s", __func__); |
1da177e4 LT |
1554 | |
1555 | return TIWriteCommandSync (port->port->serial->dev, | |
1556 | UMPC_SET_CLR_LOOPBACK, | |
1557 | (__u8)(UMPM_UART1_PORT + port_number), | |
1558 | 1, /* set */ | |
1559 | NULL, | |
1560 | 0); | |
1561 | } | |
1562 | ||
1563 | static int TIClearLoopBack (struct edgeport_port *port) | |
1564 | { | |
1565 | int port_number = port->port->number - port->port->serial->minor; | |
1566 | ||
441b62c1 | 1567 | dbg ("%s", __func__); |
1da177e4 LT |
1568 | |
1569 | return TIWriteCommandSync (port->port->serial->dev, | |
1570 | UMPC_SET_CLR_LOOPBACK, | |
1571 | (__u8)(UMPM_UART1_PORT + port_number), | |
1572 | 0, /* clear */ | |
1573 | NULL, | |
1574 | 0); | |
1575 | } | |
1576 | ||
1577 | static int TISetBreak (struct edgeport_port *port) | |
1578 | { | |
1579 | int port_number = port->port->number - port->port->serial->minor; | |
1580 | ||
441b62c1 | 1581 | dbg ("%s", __func__); |
1da177e4 LT |
1582 | |
1583 | return TIWriteCommandSync (port->port->serial->dev, | |
1584 | UMPC_SET_CLR_BREAK, | |
1585 | (__u8)(UMPM_UART1_PORT + port_number), | |
1586 | 1, /* set */ | |
1587 | NULL, | |
1588 | 0); | |
1589 | } | |
1590 | ||
1591 | static int TIClearBreak (struct edgeport_port *port) | |
1592 | { | |
1593 | int port_number = port->port->number - port->port->serial->minor; | |
1594 | ||
441b62c1 | 1595 | dbg ("%s", __func__); |
1da177e4 LT |
1596 | |
1597 | return TIWriteCommandSync (port->port->serial->dev, | |
1598 | UMPC_SET_CLR_BREAK, | |
1599 | (__u8)(UMPM_UART1_PORT + port_number), | |
1600 | 0, /* clear */ | |
1601 | NULL, | |
1602 | 0); | |
1603 | } | |
1604 | ||
1605 | static int TIRestoreMCR (struct edgeport_port *port, __u8 mcr) | |
1606 | { | |
1607 | int status = 0; | |
1608 | ||
441b62c1 | 1609 | dbg ("%s - %x", __func__, mcr); |
1da177e4 LT |
1610 | |
1611 | if (mcr & MCR_DTR) | |
1612 | status = TISetDtr (port); | |
1613 | else | |
1614 | status = TIClearDtr (port); | |
1615 | ||
1616 | if (status) | |
1617 | return status; | |
1618 | ||
1619 | if (mcr & MCR_RTS) | |
1620 | status = TISetRts (port); | |
1621 | else | |
1622 | status = TIClearRts (port); | |
1623 | ||
1624 | if (status) | |
1625 | return status; | |
1626 | ||
1627 | if (mcr & MCR_LOOPBACK) | |
1628 | status = TISetLoopBack (port); | |
1629 | else | |
1630 | status = TIClearLoopBack (port); | |
1631 | ||
1632 | return status; | |
1633 | } | |
1634 | ||
1635 | ||
1636 | ||
1637 | /* Convert TI LSR to standard UART flags */ | |
1638 | static __u8 MapLineStatus (__u8 ti_lsr) | |
1639 | { | |
1640 | __u8 lsr = 0; | |
1641 | ||
1642 | #define MAP_FLAG(flagUmp, flagUart) \ | |
1643 | if (ti_lsr & flagUmp) \ | |
1644 | lsr |= flagUart; | |
1645 | ||
1646 | MAP_FLAG(UMP_UART_LSR_OV_MASK, LSR_OVER_ERR) /* overrun */ | |
1647 | MAP_FLAG(UMP_UART_LSR_PE_MASK, LSR_PAR_ERR) /* parity error */ | |
1648 | MAP_FLAG(UMP_UART_LSR_FE_MASK, LSR_FRM_ERR) /* framing error */ | |
1649 | MAP_FLAG(UMP_UART_LSR_BR_MASK, LSR_BREAK) /* break detected */ | |
1650 | MAP_FLAG(UMP_UART_LSR_RX_MASK, LSR_RX_AVAIL) /* receive data available */ | |
1651 | MAP_FLAG(UMP_UART_LSR_TX_MASK, LSR_TX_EMPTY) /* transmit holding register empty */ | |
1652 | ||
1653 | #undef MAP_FLAG | |
1654 | ||
1655 | return lsr; | |
1656 | } | |
1657 | ||
1658 | static void handle_new_msr (struct edgeport_port *edge_port, __u8 msr) | |
1659 | { | |
1660 | struct async_icount *icount; | |
1661 | struct tty_struct *tty; | |
1662 | ||
441b62c1 | 1663 | dbg ("%s - %02x", __func__, msr); |
1da177e4 LT |
1664 | |
1665 | if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { | |
1666 | icount = &edge_port->icount; | |
1667 | ||
1668 | /* update input line counters */ | |
1669 | if (msr & EDGEPORT_MSR_DELTA_CTS) | |
1670 | icount->cts++; | |
1671 | if (msr & EDGEPORT_MSR_DELTA_DSR) | |
1672 | icount->dsr++; | |
1673 | if (msr & EDGEPORT_MSR_DELTA_CD) | |
1674 | icount->dcd++; | |
1675 | if (msr & EDGEPORT_MSR_DELTA_RI) | |
1676 | icount->rng++; | |
1677 | wake_up_interruptible (&edge_port->delta_msr_wait); | |
1678 | } | |
1679 | ||
1680 | /* Save the new modem status */ | |
1681 | edge_port->shadow_msr = msr & 0xf0; | |
1682 | ||
1683 | tty = edge_port->port->tty; | |
1684 | /* handle CTS flow control */ | |
1685 | if (tty && C_CRTSCTS(tty)) { | |
1686 | if (msr & EDGEPORT_MSR_CTS) { | |
1687 | tty->hw_stopped = 0; | |
1688 | tty_wakeup(tty); | |
1689 | } else { | |
1690 | tty->hw_stopped = 1; | |
1691 | } | |
1692 | } | |
1693 | ||
1694 | return; | |
1695 | } | |
1696 | ||
1697 | static void handle_new_lsr (struct edgeport_port *edge_port, int lsr_data, __u8 lsr, __u8 data) | |
1698 | { | |
1699 | struct async_icount *icount; | |
1700 | __u8 new_lsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR | LSR_FRM_ERR | LSR_BREAK)); | |
1701 | ||
441b62c1 | 1702 | dbg ("%s - %02x", __func__, new_lsr); |
1da177e4 LT |
1703 | |
1704 | edge_port->shadow_lsr = lsr; | |
1705 | ||
1706 | if (new_lsr & LSR_BREAK) { | |
1707 | /* | |
1708 | * Parity and Framing errors only count if they | |
1709 | * occur exclusive of a break being received. | |
1710 | */ | |
1711 | new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK); | |
1712 | } | |
1713 | ||
1714 | /* Place LSR data byte into Rx buffer */ | |
1715 | if (lsr_data && edge_port->port->tty) | |
1716 | edge_tty_recv(&edge_port->port->dev, edge_port->port->tty, &data, 1); | |
1717 | ||
1718 | /* update input line counters */ | |
1719 | icount = &edge_port->icount; | |
1720 | if (new_lsr & LSR_BREAK) | |
1721 | icount->brk++; | |
1722 | if (new_lsr & LSR_OVER_ERR) | |
1723 | icount->overrun++; | |
1724 | if (new_lsr & LSR_PAR_ERR) | |
1725 | icount->parity++; | |
1726 | if (new_lsr & LSR_FRM_ERR) | |
1727 | icount->frame++; | |
1728 | } | |
1729 | ||
1730 | ||
7d12e780 | 1731 | static void edge_interrupt_callback (struct urb *urb) |
1da177e4 | 1732 | { |
cdc97792 | 1733 | struct edgeport_serial *edge_serial = urb->context; |
1da177e4 LT |
1734 | struct usb_serial_port *port; |
1735 | struct edgeport_port *edge_port; | |
1736 | unsigned char *data = urb->transfer_buffer; | |
1737 | int length = urb->actual_length; | |
1738 | int port_number; | |
1739 | int function; | |
ee337c21 | 1740 | int retval; |
1da177e4 LT |
1741 | __u8 lsr; |
1742 | __u8 msr; | |
ee337c21 | 1743 | int status = urb->status; |
1da177e4 | 1744 | |
441b62c1 | 1745 | dbg("%s", __func__); |
1da177e4 | 1746 | |
ee337c21 | 1747 | switch (status) { |
1da177e4 LT |
1748 | case 0: |
1749 | /* success */ | |
1750 | break; | |
1751 | case -ECONNRESET: | |
1752 | case -ENOENT: | |
1753 | case -ESHUTDOWN: | |
1754 | /* this urb is terminated, clean up */ | |
ee337c21 | 1755 | dbg("%s - urb shutting down with status: %d", |
441b62c1 | 1756 | __func__, status); |
1da177e4 LT |
1757 | return; |
1758 | default: | |
ee337c21 | 1759 | dev_err(&urb->dev->dev, "%s - nonzero urb status received: " |
441b62c1 | 1760 | "%d\n", __func__, status); |
1da177e4 LT |
1761 | goto exit; |
1762 | } | |
1763 | ||
1764 | if (!length) { | |
441b62c1 | 1765 | dbg ("%s - no data in urb", __func__); |
1da177e4 LT |
1766 | goto exit; |
1767 | } | |
1768 | ||
441b62c1 | 1769 | usb_serial_debug_data(debug, &edge_serial->serial->dev->dev, __func__, length, data); |
1da177e4 LT |
1770 | |
1771 | if (length != 2) { | |
441b62c1 | 1772 | dbg ("%s - expecting packet of size 2, got %d", __func__, length); |
1da177e4 LT |
1773 | goto exit; |
1774 | } | |
1775 | ||
1776 | port_number = TIUMP_GET_PORT_FROM_CODE (data[0]); | |
1777 | function = TIUMP_GET_FUNC_FROM_CODE (data[0]); | |
1778 | dbg ("%s - port_number %d, function %d, info 0x%x", | |
441b62c1 | 1779 | __func__, port_number, function, data[1]); |
1da177e4 LT |
1780 | port = edge_serial->serial->port[port_number]; |
1781 | edge_port = usb_get_serial_port_data(port); | |
1782 | if (!edge_port) { | |
441b62c1 | 1783 | dbg ("%s - edge_port not found", __func__); |
1da177e4 LT |
1784 | return; |
1785 | } | |
1786 | switch (function) { | |
1787 | case TIUMP_INTERRUPT_CODE_LSR: | |
1788 | lsr = MapLineStatus(data[1]); | |
1789 | if (lsr & UMP_UART_LSR_DATA_MASK) { | |
1790 | /* Save the LSR event for bulk read completion routine */ | |
1791 | dbg ("%s - LSR Event Port %u LSR Status = %02x", | |
441b62c1 | 1792 | __func__, port_number, lsr); |
1da177e4 LT |
1793 | edge_port->lsr_event = 1; |
1794 | edge_port->lsr_mask = lsr; | |
1795 | } else { | |
1796 | dbg ("%s - ===== Port %d LSR Status = %02x ======", | |
441b62c1 | 1797 | __func__, port_number, lsr); |
1da177e4 LT |
1798 | handle_new_lsr (edge_port, 0, lsr, 0); |
1799 | } | |
1800 | break; | |
1801 | ||
1802 | case TIUMP_INTERRUPT_CODE_MSR: // MSR | |
1803 | /* Copy MSR from UMP */ | |
1804 | msr = data[1]; | |
1805 | dbg ("%s - ===== Port %u MSR Status = %02x ======\n", | |
441b62c1 | 1806 | __func__, port_number, msr); |
1da177e4 LT |
1807 | handle_new_msr (edge_port, msr); |
1808 | break; | |
1809 | ||
1810 | default: | |
1811 | dev_err (&urb->dev->dev, "%s - Unknown Interrupt code from UMP %x\n", | |
441b62c1 | 1812 | __func__, data[1]); |
1da177e4 LT |
1813 | break; |
1814 | ||
1815 | } | |
1816 | ||
1817 | exit: | |
ee337c21 GKH |
1818 | retval = usb_submit_urb (urb, GFP_ATOMIC); |
1819 | if (retval) | |
1da177e4 | 1820 | dev_err (&urb->dev->dev, "%s - usb_submit_urb failed with result %d\n", |
441b62c1 | 1821 | __func__, retval); |
1da177e4 LT |
1822 | } |
1823 | ||
7d12e780 | 1824 | static void edge_bulk_in_callback (struct urb *urb) |
1da177e4 | 1825 | { |
cdc97792 | 1826 | struct edgeport_port *edge_port = urb->context; |
1da177e4 LT |
1827 | unsigned char *data = urb->transfer_buffer; |
1828 | struct tty_struct *tty; | |
ee337c21 | 1829 | int retval = 0; |
1da177e4 | 1830 | int port_number; |
ee337c21 | 1831 | int status = urb->status; |
1da177e4 | 1832 | |
441b62c1 | 1833 | dbg("%s", __func__); |
1da177e4 | 1834 | |
ee337c21 | 1835 | switch (status) { |
1da177e4 LT |
1836 | case 0: |
1837 | /* success */ | |
1838 | break; | |
1839 | case -ECONNRESET: | |
1840 | case -ENOENT: | |
1841 | case -ESHUTDOWN: | |
1842 | /* this urb is terminated, clean up */ | |
ee337c21 | 1843 | dbg("%s - urb shutting down with status: %d", |
441b62c1 | 1844 | __func__, status); |
1da177e4 LT |
1845 | return; |
1846 | default: | |
1847 | dev_err (&urb->dev->dev,"%s - nonzero read bulk status received: %d\n", | |
441b62c1 | 1848 | __func__, status); |
1da177e4 LT |
1849 | } |
1850 | ||
ee337c21 | 1851 | if (status == -EPIPE) |
1da177e4 LT |
1852 | goto exit; |
1853 | ||
ee337c21 | 1854 | if (status) { |
441b62c1 | 1855 | dev_err(&urb->dev->dev,"%s - stopping read!\n", __func__); |
1da177e4 LT |
1856 | return; |
1857 | } | |
1858 | ||
1859 | port_number = edge_port->port->number - edge_port->port->serial->minor; | |
1860 | ||
1861 | if (edge_port->lsr_event) { | |
1862 | edge_port->lsr_event = 0; | |
1863 | dbg ("%s ===== Port %u LSR Status = %02x, Data = %02x ======", | |
441b62c1 | 1864 | __func__, port_number, edge_port->lsr_mask, *data); |
1da177e4 LT |
1865 | handle_new_lsr (edge_port, 1, edge_port->lsr_mask, *data); |
1866 | /* Adjust buffer length/pointer */ | |
1867 | --urb->actual_length; | |
1868 | ++data; | |
1869 | } | |
1870 | ||
1871 | tty = edge_port->port->tty; | |
1872 | if (tty && urb->actual_length) { | |
441b62c1 | 1873 | usb_serial_debug_data(debug, &edge_port->port->dev, __func__, urb->actual_length, data); |
1da177e4 LT |
1874 | |
1875 | if (edge_port->close_pending) { | |
441b62c1 | 1876 | dbg ("%s - close is pending, dropping data on the floor.", __func__); |
1da177e4 LT |
1877 | } else { |
1878 | edge_tty_recv(&edge_port->port->dev, tty, data, urb->actual_length); | |
1879 | } | |
1880 | edge_port->icount.rx += urb->actual_length; | |
1881 | } | |
1882 | ||
1883 | exit: | |
1884 | /* continue read unless stopped */ | |
1885 | spin_lock(&edge_port->ep_lock); | |
1886 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) { | |
1887 | urb->dev = edge_port->port->serial->dev; | |
ee337c21 | 1888 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
1889 | } else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) { |
1890 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED; | |
1891 | } | |
1892 | spin_unlock(&edge_port->ep_lock); | |
ee337c21 | 1893 | if (retval) |
1da177e4 | 1894 | dev_err (&urb->dev->dev, "%s - usb_submit_urb failed with result %d\n", |
441b62c1 | 1895 | __func__, retval); |
1da177e4 LT |
1896 | } |
1897 | ||
1898 | static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned char *data, int length) | |
1899 | { | |
1900 | int cnt; | |
1901 | ||
1902 | do { | |
33f0f88f AC |
1903 | cnt = tty_buffer_request_room(tty, length); |
1904 | if (cnt < length) { | |
1905 | dev_err(dev, "%s - dropping data, %d bytes lost\n", | |
441b62c1 | 1906 | __func__, length - cnt); |
33f0f88f AC |
1907 | if(cnt == 0) |
1908 | break; | |
1da177e4 | 1909 | } |
33f0f88f | 1910 | tty_insert_flip_string(tty, data, cnt); |
1da177e4 LT |
1911 | data += cnt; |
1912 | length -= cnt; | |
1913 | } while (length > 0); | |
1914 | ||
1915 | tty_flip_buffer_push(tty); | |
1916 | } | |
1917 | ||
7d12e780 | 1918 | static void edge_bulk_out_callback (struct urb *urb) |
1da177e4 | 1919 | { |
cdc97792 | 1920 | struct usb_serial_port *port = urb->context; |
1da177e4 | 1921 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
ee337c21 | 1922 | int status = urb->status; |
1da177e4 | 1923 | |
441b62c1 | 1924 | dbg ("%s - port %d", __func__, port->number); |
1da177e4 LT |
1925 | |
1926 | edge_port->ep_write_urb_in_use = 0; | |
1927 | ||
ee337c21 | 1928 | switch (status) { |
1da177e4 LT |
1929 | case 0: |
1930 | /* success */ | |
1931 | break; | |
1932 | case -ECONNRESET: | |
1933 | case -ENOENT: | |
1934 | case -ESHUTDOWN: | |
1935 | /* this urb is terminated, clean up */ | |
ee337c21 | 1936 | dbg("%s - urb shutting down with status: %d", |
441b62c1 | 1937 | __func__, status); |
1da177e4 LT |
1938 | return; |
1939 | default: | |
ee337c21 | 1940 | dev_err(&urb->dev->dev, "%s - nonzero write bulk status " |
441b62c1 | 1941 | "received: %d\n", __func__, status); |
1da177e4 LT |
1942 | } |
1943 | ||
1944 | /* send any buffered data */ | |
1945 | edge_send(port); | |
1946 | } | |
1947 | ||
1948 | static int edge_open (struct usb_serial_port *port, struct file * filp) | |
1949 | { | |
1950 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
1951 | struct edgeport_serial *edge_serial; | |
1952 | struct usb_device *dev; | |
1953 | struct urb *urb; | |
1954 | int port_number; | |
1955 | int status; | |
1956 | u16 open_settings; | |
1957 | u8 transaction_timeout; | |
1958 | ||
441b62c1 | 1959 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
1960 | |
1961 | if (edge_port == NULL) | |
1962 | return -ENODEV; | |
1963 | ||
b56394bf | 1964 | port->tty->low_latency = low_latency; |
1da177e4 LT |
1965 | |
1966 | port_number = port->number - port->serial->minor; | |
1967 | switch (port_number) { | |
1968 | case 0: | |
1969 | edge_port->uart_base = UMPMEM_BASE_UART1; | |
1970 | edge_port->dma_address = UMPD_OEDB1_ADDRESS; | |
1971 | break; | |
1972 | case 1: | |
1973 | edge_port->uart_base = UMPMEM_BASE_UART2; | |
1974 | edge_port->dma_address = UMPD_OEDB2_ADDRESS; | |
1975 | break; | |
1976 | default: | |
1977 | dev_err (&port->dev, "Unknown port number!!!\n"); | |
1978 | return -ENODEV; | |
1979 | } | |
1980 | ||
1981 | dbg ("%s - port_number = %d, uart_base = %04x, dma_address = %04x", | |
441b62c1 | 1982 | __func__, port_number, edge_port->uart_base, edge_port->dma_address); |
1da177e4 LT |
1983 | |
1984 | dev = port->serial->dev; | |
1985 | ||
1986 | memset (&(edge_port->icount), 0x00, sizeof(edge_port->icount)); | |
1987 | init_waitqueue_head (&edge_port->delta_msr_wait); | |
1988 | ||
1989 | /* turn off loopback */ | |
1990 | status = TIClearLoopBack (edge_port); | |
1991 | if (status) { | |
1992 | dev_err(&port->dev,"%s - cannot send clear loopback command, %d\n", | |
441b62c1 | 1993 | __func__, status); |
1da177e4 LT |
1994 | return status; |
1995 | } | |
1996 | ||
1997 | /* set up the port settings */ | |
d5f5bcd4 | 1998 | edge_set_termios (port, port->tty->termios); |
1da177e4 LT |
1999 | |
2000 | /* open up the port */ | |
2001 | ||
2002 | /* milliseconds to timeout for DMA transfer */ | |
2003 | transaction_timeout = 2; | |
2004 | ||
2005 | edge_port->ump_read_timeout = max (20, ((transaction_timeout * 3) / 2) ); | |
2006 | ||
2007 | // milliseconds to timeout for DMA transfer | |
2008 | open_settings = (u8)(UMP_DMA_MODE_CONTINOUS | | |
2009 | UMP_PIPE_TRANS_TIMEOUT_ENA | | |
2010 | (transaction_timeout << 2)); | |
2011 | ||
441b62c1 | 2012 | dbg ("%s - Sending UMPC_OPEN_PORT", __func__); |
1da177e4 LT |
2013 | |
2014 | /* Tell TI to open and start the port */ | |
2015 | status = TIWriteCommandSync (dev, | |
2016 | UMPC_OPEN_PORT, | |
2017 | (u8)(UMPM_UART1_PORT + port_number), | |
2018 | open_settings, | |
2019 | NULL, | |
2020 | 0); | |
2021 | if (status) { | |
441b62c1 | 2022 | dev_err(&port->dev,"%s - cannot send open command, %d\n", __func__, status); |
1da177e4 LT |
2023 | return status; |
2024 | } | |
2025 | ||
2026 | /* Start the DMA? */ | |
2027 | status = TIWriteCommandSync (dev, | |
2028 | UMPC_START_PORT, | |
2029 | (u8)(UMPM_UART1_PORT + port_number), | |
2030 | 0, | |
2031 | NULL, | |
2032 | 0); | |
2033 | if (status) { | |
441b62c1 | 2034 | dev_err(&port->dev,"%s - cannot send start DMA command, %d\n", __func__, status); |
1da177e4 LT |
2035 | return status; |
2036 | } | |
2037 | ||
2038 | /* Clear TX and RX buffers in UMP */ | |
2039 | status = TIPurgeDataSync (port, UMP_PORT_DIR_OUT | UMP_PORT_DIR_IN); | |
2040 | if (status) { | |
441b62c1 | 2041 | dev_err(&port->dev,"%s - cannot send clear buffers command, %d\n", __func__, status); |
1da177e4 LT |
2042 | return status; |
2043 | } | |
2044 | ||
2045 | /* Read Initial MSR */ | |
2046 | status = TIReadVendorRequestSync (dev, | |
2047 | UMPC_READ_MSR, // Request | |
2048 | 0, // wValue | |
2049 | (__u16)(UMPM_UART1_PORT + port_number), // wIndex (Address) | |
2050 | &edge_port->shadow_msr, // TransferBuffer | |
2051 | 1); // TransferBufferLength | |
2052 | if (status) { | |
441b62c1 | 2053 | dev_err(&port->dev,"%s - cannot send read MSR command, %d\n", __func__, status); |
1da177e4 LT |
2054 | return status; |
2055 | } | |
2056 | ||
2057 | dbg ("ShadowMSR 0x%X", edge_port->shadow_msr); | |
2058 | ||
2059 | /* Set Initial MCR */ | |
2060 | edge_port->shadow_mcr = MCR_RTS | MCR_DTR; | |
2061 | dbg ("ShadowMCR 0x%X", edge_port->shadow_mcr); | |
2062 | ||
2063 | edge_serial = edge_port->edge_serial; | |
241ca64f | 2064 | if (mutex_lock_interruptible(&edge_serial->es_lock)) |
1da177e4 LT |
2065 | return -ERESTARTSYS; |
2066 | if (edge_serial->num_ports_open == 0) { | |
2067 | /* we are the first port to be opened, let's post the interrupt urb */ | |
2068 | urb = edge_serial->serial->port[0]->interrupt_in_urb; | |
2069 | if (!urb) { | |
441b62c1 | 2070 | dev_err (&port->dev, "%s - no interrupt urb present, exiting\n", __func__); |
1da177e4 | 2071 | status = -EINVAL; |
241ca64f | 2072 | goto release_es_lock; |
1da177e4 LT |
2073 | } |
2074 | urb->complete = edge_interrupt_callback; | |
2075 | urb->context = edge_serial; | |
2076 | urb->dev = dev; | |
2077 | status = usb_submit_urb (urb, GFP_KERNEL); | |
2078 | if (status) { | |
441b62c1 | 2079 | dev_err (&port->dev, "%s - usb_submit_urb failed with value %d\n", __func__, status); |
241ca64f | 2080 | goto release_es_lock; |
1da177e4 LT |
2081 | } |
2082 | } | |
2083 | ||
2084 | /* | |
2085 | * reset the data toggle on the bulk endpoints to work around bug in | |
2086 | * host controllers where things get out of sync some times | |
2087 | */ | |
2088 | usb_clear_halt (dev, port->write_urb->pipe); | |
2089 | usb_clear_halt (dev, port->read_urb->pipe); | |
2090 | ||
2091 | /* start up our bulk read urb */ | |
2092 | urb = port->read_urb; | |
2093 | if (!urb) { | |
441b62c1 | 2094 | dev_err (&port->dev, "%s - no read urb present, exiting\n", __func__); |
1da177e4 LT |
2095 | status = -EINVAL; |
2096 | goto unlink_int_urb; | |
2097 | } | |
2098 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; | |
2099 | urb->complete = edge_bulk_in_callback; | |
2100 | urb->context = edge_port; | |
2101 | urb->dev = dev; | |
2102 | status = usb_submit_urb (urb, GFP_KERNEL); | |
2103 | if (status) { | |
441b62c1 | 2104 | dev_err (&port->dev, "%s - read bulk usb_submit_urb failed with value %d\n", __func__, status); |
1da177e4 LT |
2105 | goto unlink_int_urb; |
2106 | } | |
2107 | ||
2108 | ++edge_serial->num_ports_open; | |
2109 | ||
441b62c1 | 2110 | dbg("%s - exited", __func__); |
1da177e4 | 2111 | |
241ca64f | 2112 | goto release_es_lock; |
1da177e4 LT |
2113 | |
2114 | unlink_int_urb: | |
2115 | if (edge_port->edge_serial->num_ports_open == 0) | |
2116 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
241ca64f MK |
2117 | release_es_lock: |
2118 | mutex_unlock(&edge_serial->es_lock); | |
1da177e4 LT |
2119 | return status; |
2120 | } | |
2121 | ||
2122 | static void edge_close (struct usb_serial_port *port, struct file *filp) | |
2123 | { | |
2124 | struct edgeport_serial *edge_serial; | |
2125 | struct edgeport_port *edge_port; | |
2126 | int port_number; | |
2127 | int status; | |
2128 | ||
441b62c1 | 2129 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
2130 | |
2131 | edge_serial = usb_get_serial_data(port->serial); | |
2132 | edge_port = usb_get_serial_port_data(port); | |
2133 | if ((edge_serial == NULL) || (edge_port == NULL)) | |
2134 | return; | |
2135 | ||
2136 | /* The bulkreadcompletion routine will check | |
2137 | * this flag and dump add read data */ | |
2138 | edge_port->close_pending = 1; | |
2139 | ||
2140 | /* chase the port close and flush */ | |
2141 | TIChasePort (edge_port, (HZ*closing_wait)/100, 1); | |
2142 | ||
2143 | usb_kill_urb(port->read_urb); | |
2144 | usb_kill_urb(port->write_urb); | |
2145 | edge_port->ep_write_urb_in_use = 0; | |
2146 | ||
2147 | /* assuming we can still talk to the device, | |
2148 | * send a close port command to it */ | |
441b62c1 | 2149 | dbg("%s - send umpc_close_port", __func__); |
1da177e4 LT |
2150 | port_number = port->number - port->serial->minor; |
2151 | status = TIWriteCommandSync (port->serial->dev, | |
2152 | UMPC_CLOSE_PORT, | |
2153 | (__u8)(UMPM_UART1_PORT + port_number), | |
2154 | 0, | |
2155 | NULL, | |
2156 | 0); | |
241ca64f | 2157 | mutex_lock(&edge_serial->es_lock); |
1da177e4 LT |
2158 | --edge_port->edge_serial->num_ports_open; |
2159 | if (edge_port->edge_serial->num_ports_open <= 0) { | |
2160 | /* last port is now closed, let's shut down our interrupt urb */ | |
2161 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
2162 | edge_port->edge_serial->num_ports_open = 0; | |
2163 | } | |
241ca64f | 2164 | mutex_unlock(&edge_serial->es_lock); |
1da177e4 LT |
2165 | edge_port->close_pending = 0; |
2166 | ||
441b62c1 | 2167 | dbg("%s - exited", __func__); |
1da177e4 LT |
2168 | } |
2169 | ||
2170 | static int edge_write (struct usb_serial_port *port, const unsigned char *data, int count) | |
2171 | { | |
2172 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2173 | unsigned long flags; | |
2174 | ||
441b62c1 | 2175 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
2176 | |
2177 | if (count == 0) { | |
441b62c1 | 2178 | dbg("%s - write request of 0 bytes", __func__); |
1da177e4 LT |
2179 | return 0; |
2180 | } | |
2181 | ||
2182 | if (edge_port == NULL) | |
2183 | return -ENODEV; | |
2184 | if (edge_port->close_pending == 1) | |
2185 | return -ENODEV; | |
2186 | ||
2187 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2188 | count = edge_buf_put(edge_port->ep_out_buf, data, count); | |
2189 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2190 | ||
2191 | edge_send(port); | |
2192 | ||
2193 | return count; | |
2194 | } | |
2195 | ||
2196 | static void edge_send(struct usb_serial_port *port) | |
2197 | { | |
2198 | int count, result; | |
2199 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2200 | struct tty_struct *tty = port->tty; | |
2201 | unsigned long flags; | |
2202 | ||
2203 | ||
441b62c1 | 2204 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
2205 | |
2206 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2207 | ||
2208 | if (edge_port->ep_write_urb_in_use) { | |
2209 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2210 | return; | |
2211 | } | |
2212 | ||
2213 | count = edge_buf_get(edge_port->ep_out_buf, | |
2214 | port->write_urb->transfer_buffer, | |
2215 | port->bulk_out_size); | |
2216 | ||
2217 | if (count == 0) { | |
2218 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2219 | return; | |
2220 | } | |
2221 | ||
2222 | edge_port->ep_write_urb_in_use = 1; | |
2223 | ||
2224 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2225 | ||
441b62c1 | 2226 | usb_serial_debug_data(debug, &port->dev, __func__, count, port->write_urb->transfer_buffer); |
1da177e4 LT |
2227 | |
2228 | /* set up our urb */ | |
2229 | usb_fill_bulk_urb (port->write_urb, port->serial->dev, | |
2230 | usb_sndbulkpipe (port->serial->dev, | |
2231 | port->bulk_out_endpointAddress), | |
2232 | port->write_urb->transfer_buffer, count, | |
2233 | edge_bulk_out_callback, | |
2234 | port); | |
2235 | ||
2236 | /* send the data out the bulk port */ | |
2237 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); | |
2238 | if (result) { | |
441b62c1 | 2239 | dev_err(&port->dev, "%s - failed submitting write urb, error %d\n", __func__, result); |
1da177e4 LT |
2240 | edge_port->ep_write_urb_in_use = 0; |
2241 | // TODO: reschedule edge_send | |
2242 | } else { | |
2243 | edge_port->icount.tx += count; | |
2244 | } | |
2245 | ||
2246 | /* wakeup any process waiting for writes to complete */ | |
2247 | /* there is now more room in the buffer for new writes */ | |
2248 | if (tty) { | |
2249 | /* let the tty driver wakeup if it has a special write_wakeup function */ | |
2250 | tty_wakeup(tty); | |
2251 | } | |
2252 | } | |
2253 | ||
2254 | static int edge_write_room (struct usb_serial_port *port) | |
2255 | { | |
2256 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2257 | int room = 0; | |
2258 | unsigned long flags; | |
2259 | ||
441b62c1 | 2260 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
2261 | |
2262 | if (edge_port == NULL) | |
2263 | return -ENODEV; | |
2264 | if (edge_port->close_pending == 1) | |
2265 | return -ENODEV; | |
2266 | ||
2267 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2268 | room = edge_buf_space_avail(edge_port->ep_out_buf); | |
2269 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2270 | ||
441b62c1 | 2271 | dbg("%s - returns %d", __func__, room); |
1da177e4 LT |
2272 | return room; |
2273 | } | |
2274 | ||
2275 | static int edge_chars_in_buffer (struct usb_serial_port *port) | |
2276 | { | |
2277 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2278 | int chars = 0; | |
2279 | unsigned long flags; | |
2280 | ||
441b62c1 | 2281 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
2282 | |
2283 | if (edge_port == NULL) | |
2284 | return -ENODEV; | |
2285 | if (edge_port->close_pending == 1) | |
2286 | return -ENODEV; | |
2287 | ||
2288 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2289 | chars = edge_buf_data_avail(edge_port->ep_out_buf); | |
2290 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2291 | ||
441b62c1 | 2292 | dbg ("%s - returns %d", __func__, chars); |
1da177e4 LT |
2293 | return chars; |
2294 | } | |
2295 | ||
2296 | static void edge_throttle (struct usb_serial_port *port) | |
2297 | { | |
2298 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2299 | struct tty_struct *tty; | |
2300 | int status; | |
2301 | ||
441b62c1 | 2302 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
2303 | |
2304 | if (edge_port == NULL) | |
2305 | return; | |
2306 | ||
2307 | tty = port->tty; | |
2308 | if (!tty) { | |
441b62c1 | 2309 | dbg ("%s - no tty available", __func__); |
1da177e4 LT |
2310 | return; |
2311 | } | |
2312 | ||
2313 | /* if we are implementing XON/XOFF, send the stop character */ | |
2314 | if (I_IXOFF(tty)) { | |
2315 | unsigned char stop_char = STOP_CHAR(tty); | |
2316 | status = edge_write (port, &stop_char, 1); | |
2317 | if (status <= 0) { | |
441b62c1 | 2318 | dev_err(&port->dev, "%s - failed to write stop character, %d\n", __func__, status); |
1da177e4 LT |
2319 | } |
2320 | } | |
2321 | ||
2322 | /* if we are implementing RTS/CTS, stop reads */ | |
2323 | /* and the Edgeport will clear the RTS line */ | |
2324 | if (C_CRTSCTS(tty)) | |
2325 | stop_read(edge_port); | |
2326 | ||
2327 | } | |
2328 | ||
2329 | static void edge_unthrottle (struct usb_serial_port *port) | |
2330 | { | |
2331 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2332 | struct tty_struct *tty; | |
2333 | int status; | |
2334 | ||
441b62c1 | 2335 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
2336 | |
2337 | if (edge_port == NULL) | |
2338 | return; | |
2339 | ||
2340 | tty = port->tty; | |
2341 | if (!tty) { | |
441b62c1 | 2342 | dbg ("%s - no tty available", __func__); |
1da177e4 LT |
2343 | return; |
2344 | } | |
2345 | ||
2346 | /* if we are implementing XON/XOFF, send the start character */ | |
2347 | if (I_IXOFF(tty)) { | |
2348 | unsigned char start_char = START_CHAR(tty); | |
2349 | status = edge_write (port, &start_char, 1); | |
2350 | if (status <= 0) { | |
441b62c1 | 2351 | dev_err(&port->dev, "%s - failed to write start character, %d\n", __func__, status); |
1da177e4 LT |
2352 | } |
2353 | } | |
2354 | ||
2355 | /* if we are implementing RTS/CTS, restart reads */ | |
2356 | /* are the Edgeport will assert the RTS line */ | |
2357 | if (C_CRTSCTS(tty)) { | |
2358 | status = restart_read(edge_port); | |
2359 | if (status) | |
441b62c1 | 2360 | dev_err(&port->dev, "%s - read bulk usb_submit_urb failed with value %d\n", __func__, status); |
1da177e4 LT |
2361 | } |
2362 | ||
2363 | } | |
2364 | ||
2365 | static void stop_read(struct edgeport_port *edge_port) | |
2366 | { | |
2367 | unsigned long flags; | |
2368 | ||
2369 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2370 | ||
2371 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) | |
2372 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING; | |
2373 | edge_port->shadow_mcr &= ~MCR_RTS; | |
2374 | ||
2375 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2376 | } | |
2377 | ||
2378 | static int restart_read(struct edgeport_port *edge_port) | |
2379 | { | |
2380 | struct urb *urb; | |
2381 | int status = 0; | |
2382 | unsigned long flags; | |
2383 | ||
2384 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2385 | ||
2386 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) { | |
2387 | urb = edge_port->port->read_urb; | |
2388 | urb->complete = edge_bulk_in_callback; | |
2389 | urb->context = edge_port; | |
2390 | urb->dev = edge_port->port->serial->dev; | |
efdff608 | 2391 | status = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
2392 | } |
2393 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; | |
2394 | edge_port->shadow_mcr |= MCR_RTS; | |
2395 | ||
2396 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2397 | ||
2398 | return status; | |
2399 | } | |
2400 | ||
606d099c | 2401 | static void change_port_settings (struct edgeport_port *edge_port, struct ktermios *old_termios) |
1da177e4 LT |
2402 | { |
2403 | struct ump_uart_config *config; | |
2404 | struct tty_struct *tty; | |
2405 | int baud; | |
2406 | unsigned cflag; | |
2407 | int status; | |
2408 | int port_number = edge_port->port->number - edge_port->port->serial->minor; | |
2409 | ||
441b62c1 | 2410 | dbg("%s - port %d", __func__, edge_port->port->number); |
1da177e4 LT |
2411 | |
2412 | tty = edge_port->port->tty; | |
1da177e4 LT |
2413 | |
2414 | config = kmalloc (sizeof (*config), GFP_KERNEL); | |
2415 | if (!config) { | |
441b62c1 | 2416 | dev_err (&edge_port->port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
2417 | return; |
2418 | } | |
2419 | ||
2420 | cflag = tty->termios->c_cflag; | |
2421 | ||
2422 | config->wFlags = 0; | |
2423 | ||
2424 | /* These flags must be set */ | |
2425 | config->wFlags |= UMP_MASK_UART_FLAGS_RECEIVE_MS_INT; | |
2426 | config->wFlags |= UMP_MASK_UART_FLAGS_AUTO_START_ON_ERR; | |
2427 | config->bUartMode = (__u8)(edge_port->bUartMode); | |
2428 | ||
2429 | switch (cflag & CSIZE) { | |
2430 | case CS5: | |
2431 | config->bDataBits = UMP_UART_CHAR5BITS; | |
441b62c1 | 2432 | dbg ("%s - data bits = 5", __func__); |
1da177e4 LT |
2433 | break; |
2434 | case CS6: | |
2435 | config->bDataBits = UMP_UART_CHAR6BITS; | |
441b62c1 | 2436 | dbg ("%s - data bits = 6", __func__); |
1da177e4 LT |
2437 | break; |
2438 | case CS7: | |
2439 | config->bDataBits = UMP_UART_CHAR7BITS; | |
441b62c1 | 2440 | dbg ("%s - data bits = 7", __func__); |
1da177e4 LT |
2441 | break; |
2442 | default: | |
2443 | case CS8: | |
2444 | config->bDataBits = UMP_UART_CHAR8BITS; | |
441b62c1 | 2445 | dbg ("%s - data bits = 8", __func__); |
1da177e4 LT |
2446 | break; |
2447 | } | |
2448 | ||
2449 | if (cflag & PARENB) { | |
2450 | if (cflag & PARODD) { | |
2451 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; | |
2452 | config->bParity = UMP_UART_ODDPARITY; | |
441b62c1 | 2453 | dbg("%s - parity = odd", __func__); |
1da177e4 LT |
2454 | } else { |
2455 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; | |
2456 | config->bParity = UMP_UART_EVENPARITY; | |
441b62c1 | 2457 | dbg("%s - parity = even", __func__); |
1da177e4 LT |
2458 | } |
2459 | } else { | |
2460 | config->bParity = UMP_UART_NOPARITY; | |
441b62c1 | 2461 | dbg("%s - parity = none", __func__); |
1da177e4 LT |
2462 | } |
2463 | ||
2464 | if (cflag & CSTOPB) { | |
2465 | config->bStopBits = UMP_UART_STOPBIT2; | |
441b62c1 | 2466 | dbg("%s - stop bits = 2", __func__); |
1da177e4 LT |
2467 | } else { |
2468 | config->bStopBits = UMP_UART_STOPBIT1; | |
441b62c1 | 2469 | dbg("%s - stop bits = 1", __func__); |
1da177e4 LT |
2470 | } |
2471 | ||
2472 | /* figure out the flow control settings */ | |
2473 | if (cflag & CRTSCTS) { | |
2474 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X_CTS_FLOW; | |
2475 | config->wFlags |= UMP_MASK_UART_FLAGS_RTS_FLOW; | |
441b62c1 | 2476 | dbg("%s - RTS/CTS is enabled", __func__); |
1da177e4 | 2477 | } else { |
441b62c1 | 2478 | dbg("%s - RTS/CTS is disabled", __func__); |
1da177e4 LT |
2479 | tty->hw_stopped = 0; |
2480 | restart_read(edge_port); | |
2481 | } | |
2482 | ||
2483 | /* if we are implementing XON/XOFF, set the start and stop character in the device */ | |
2484 | if (I_IXOFF(tty) || I_IXON(tty)) { | |
2485 | config->cXon = START_CHAR(tty); | |
2486 | config->cXoff = STOP_CHAR(tty); | |
2487 | ||
2488 | /* if we are implementing INBOUND XON/XOFF */ | |
2489 | if (I_IXOFF(tty)) { | |
2490 | config->wFlags |= UMP_MASK_UART_FLAGS_IN_X; | |
2491 | dbg ("%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x", | |
441b62c1 | 2492 | __func__, config->cXon, config->cXoff); |
1da177e4 | 2493 | } else { |
441b62c1 | 2494 | dbg ("%s - INBOUND XON/XOFF is disabled", __func__); |
1da177e4 LT |
2495 | } |
2496 | ||
2497 | /* if we are implementing OUTBOUND XON/XOFF */ | |
2498 | if (I_IXON(tty)) { | |
2499 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X; | |
2500 | dbg ("%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x", | |
441b62c1 | 2501 | __func__, config->cXon, config->cXoff); |
1da177e4 | 2502 | } else { |
441b62c1 | 2503 | dbg ("%s - OUTBOUND XON/XOFF is disabled", __func__); |
1da177e4 LT |
2504 | } |
2505 | } | |
2506 | ||
d5f5bcd4 AC |
2507 | tty->termios->c_cflag &= ~CMSPAR; |
2508 | ||
1da177e4 LT |
2509 | /* Round the baud rate */ |
2510 | baud = tty_get_baud_rate(tty); | |
2511 | if (!baud) { | |
2512 | /* pick a default, any default... */ | |
2513 | baud = 9600; | |
d5f5bcd4 AC |
2514 | } else |
2515 | tty_encode_baud_rate(tty, baud, baud); | |
2516 | ||
1da177e4 LT |
2517 | edge_port->baud_rate = baud; |
2518 | config->wBaudRate = (__u16)((461550L + baud/2) / baud); | |
2519 | ||
d5f5bcd4 AC |
2520 | /* FIXME: Recompute actual baud from divisor here */ |
2521 | ||
441b62c1 | 2522 | dbg ("%s - baud rate = %d, wBaudRate = %d", __func__, baud, config->wBaudRate); |
1da177e4 LT |
2523 | |
2524 | dbg ("wBaudRate: %d", (int)(461550L / config->wBaudRate)); | |
2525 | dbg ("wFlags: 0x%x", config->wFlags); | |
2526 | dbg ("bDataBits: %d", config->bDataBits); | |
2527 | dbg ("bParity: %d", config->bParity); | |
2528 | dbg ("bStopBits: %d", config->bStopBits); | |
2529 | dbg ("cXon: %d", config->cXon); | |
2530 | dbg ("cXoff: %d", config->cXoff); | |
2531 | dbg ("bUartMode: %d", config->bUartMode); | |
2532 | ||
2533 | /* move the word values into big endian mode */ | |
2534 | cpu_to_be16s (&config->wFlags); | |
2535 | cpu_to_be16s (&config->wBaudRate); | |
2536 | ||
2537 | status = TIWriteCommandSync (edge_port->port->serial->dev, | |
2538 | UMPC_SET_CONFIG, | |
2539 | (__u8)(UMPM_UART1_PORT + port_number), | |
2540 | 0, | |
2541 | (__u8 *)config, | |
2542 | sizeof(*config)); | |
2543 | if (status) { | |
2544 | dbg ("%s - error %d when trying to write config to device", | |
441b62c1 | 2545 | __func__, status); |
1da177e4 LT |
2546 | } |
2547 | ||
2548 | kfree (config); | |
2549 | ||
2550 | return; | |
2551 | } | |
2552 | ||
606d099c | 2553 | static void edge_set_termios (struct usb_serial_port *port, struct ktermios *old_termios) |
1da177e4 LT |
2554 | { |
2555 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2556 | struct tty_struct *tty = port->tty; | |
2557 | unsigned int cflag; | |
2558 | ||
1da177e4 | 2559 | cflag = tty->termios->c_cflag; |
1da177e4 | 2560 | |
441b62c1 | 2561 | dbg("%s - clfag %08x iflag %08x", __func__, |
1da177e4 | 2562 | tty->termios->c_cflag, tty->termios->c_iflag); |
441b62c1 | 2563 | dbg("%s - old clfag %08x old iflag %08x", __func__, |
d5f5bcd4 | 2564 | old_termios->c_cflag, old_termios->c_iflag); |
1da177e4 | 2565 | |
441b62c1 | 2566 | dbg("%s - port %d", __func__, port->number); |
1da177e4 LT |
2567 | |
2568 | if (edge_port == NULL) | |
2569 | return; | |
2570 | ||
2571 | /* change the port settings to the new ones specified */ | |
2572 | change_port_settings (edge_port, old_termios); | |
2573 | ||
2574 | return; | |
2575 | } | |
2576 | ||
2577 | static int edge_tiocmset (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear) | |
2578 | { | |
2579 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2580 | unsigned int mcr; | |
3d71fe0b | 2581 | unsigned long flags; |
1da177e4 | 2582 | |
441b62c1 | 2583 | dbg("%s - port %d", __func__, port->number); |
1da177e4 | 2584 | |
3d71fe0b | 2585 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
1da177e4 LT |
2586 | mcr = edge_port->shadow_mcr; |
2587 | if (set & TIOCM_RTS) | |
2588 | mcr |= MCR_RTS; | |
2589 | if (set & TIOCM_DTR) | |
2590 | mcr |= MCR_DTR; | |
2591 | if (set & TIOCM_LOOP) | |
2592 | mcr |= MCR_LOOPBACK; | |
2593 | ||
2594 | if (clear & TIOCM_RTS) | |
2595 | mcr &= ~MCR_RTS; | |
2596 | if (clear & TIOCM_DTR) | |
2597 | mcr &= ~MCR_DTR; | |
2598 | if (clear & TIOCM_LOOP) | |
2599 | mcr &= ~MCR_LOOPBACK; | |
2600 | ||
2601 | edge_port->shadow_mcr = mcr; | |
3d71fe0b | 2602 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
1da177e4 LT |
2603 | |
2604 | TIRestoreMCR (edge_port, mcr); | |
2605 | ||
2606 | return 0; | |
2607 | } | |
2608 | ||
2609 | static int edge_tiocmget(struct usb_serial_port *port, struct file *file) | |
2610 | { | |
2611 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2612 | unsigned int result = 0; | |
2613 | unsigned int msr; | |
2614 | unsigned int mcr; | |
3d71fe0b | 2615 | unsigned long flags; |
1da177e4 | 2616 | |
441b62c1 | 2617 | dbg("%s - port %d", __func__, port->number); |
1da177e4 | 2618 | |
3d71fe0b AC |
2619 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
2620 | ||
1da177e4 LT |
2621 | msr = edge_port->shadow_msr; |
2622 | mcr = edge_port->shadow_mcr; | |
2623 | result = ((mcr & MCR_DTR) ? TIOCM_DTR: 0) /* 0x002 */ | |
2624 | | ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */ | |
2625 | | ((msr & EDGEPORT_MSR_CTS) ? TIOCM_CTS: 0) /* 0x020 */ | |
2626 | | ((msr & EDGEPORT_MSR_CD) ? TIOCM_CAR: 0) /* 0x040 */ | |
2627 | | ((msr & EDGEPORT_MSR_RI) ? TIOCM_RI: 0) /* 0x080 */ | |
2628 | | ((msr & EDGEPORT_MSR_DSR) ? TIOCM_DSR: 0); /* 0x100 */ | |
2629 | ||
2630 | ||
441b62c1 | 2631 | dbg("%s -- %x", __func__, result); |
3d71fe0b | 2632 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
1da177e4 LT |
2633 | |
2634 | return result; | |
2635 | } | |
2636 | ||
2637 | static int get_serial_info (struct edgeport_port *edge_port, struct serial_struct __user *retinfo) | |
2638 | { | |
2639 | struct serial_struct tmp; | |
2640 | ||
2641 | if (!retinfo) | |
2642 | return -EFAULT; | |
2643 | ||
2644 | memset(&tmp, 0, sizeof(tmp)); | |
2645 | ||
2646 | tmp.type = PORT_16550A; | |
2647 | tmp.line = edge_port->port->serial->minor; | |
2648 | tmp.port = edge_port->port->number; | |
2649 | tmp.irq = 0; | |
2650 | tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; | |
2651 | tmp.xmit_fifo_size = edge_port->port->bulk_out_size; | |
2652 | tmp.baud_base = 9600; | |
2653 | tmp.close_delay = 5*HZ; | |
2654 | tmp.closing_wait = closing_wait; | |
2655 | // tmp.custom_divisor = state->custom_divisor; | |
2656 | // tmp.hub6 = state->hub6; | |
2657 | // tmp.io_type = state->io_type; | |
2658 | ||
2659 | ||
2660 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) | |
2661 | return -EFAULT; | |
2662 | return 0; | |
2663 | } | |
2664 | ||
2665 | static int edge_ioctl (struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg) | |
2666 | { | |
2667 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2668 | struct async_icount cnow; | |
2669 | struct async_icount cprev; | |
2670 | ||
441b62c1 | 2671 | dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd); |
1da177e4 LT |
2672 | |
2673 | switch (cmd) { | |
2674 | case TIOCINQ: | |
441b62c1 | 2675 | dbg("%s - (%d) TIOCINQ", __func__, port->number); |
1da177e4 LT |
2676 | // return get_number_bytes_avail(edge_port, (unsigned int *) arg); |
2677 | break; | |
2678 | ||
2679 | case TIOCSERGETLSR: | |
441b62c1 | 2680 | dbg("%s - (%d) TIOCSERGETLSR", __func__, port->number); |
1da177e4 LT |
2681 | // return get_lsr_info(edge_port, (unsigned int *) arg); |
2682 | break; | |
2683 | ||
2684 | case TIOCGSERIAL: | |
441b62c1 | 2685 | dbg("%s - (%d) TIOCGSERIAL", __func__, port->number); |
1da177e4 LT |
2686 | return get_serial_info(edge_port, (struct serial_struct __user *) arg); |
2687 | break; | |
2688 | ||
2689 | case TIOCSSERIAL: | |
441b62c1 | 2690 | dbg("%s - (%d) TIOCSSERIAL", __func__, port->number); |
1da177e4 LT |
2691 | break; |
2692 | ||
2693 | case TIOCMIWAIT: | |
441b62c1 | 2694 | dbg("%s - (%d) TIOCMIWAIT", __func__, port->number); |
1da177e4 LT |
2695 | cprev = edge_port->icount; |
2696 | while (1) { | |
2697 | interruptible_sleep_on(&edge_port->delta_msr_wait); | |
2698 | /* see if a signal did it */ | |
2699 | if (signal_pending(current)) | |
2700 | return -ERESTARTSYS; | |
2701 | cnow = edge_port->icount; | |
2702 | if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && | |
2703 | cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) | |
2704 | return -EIO; /* no change => error */ | |
2705 | if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || | |
2706 | ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || | |
2707 | ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || | |
2708 | ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) { | |
2709 | return 0; | |
2710 | } | |
2711 | cprev = cnow; | |
2712 | } | |
2713 | /* not reached */ | |
2714 | break; | |
2715 | ||
2716 | case TIOCGICOUNT: | |
441b62c1 | 2717 | dbg ("%s - (%d) TIOCGICOUNT RX=%d, TX=%d", __func__, |
1da177e4 LT |
2718 | port->number, edge_port->icount.rx, edge_port->icount.tx); |
2719 | if (copy_to_user((void __user *)arg, &edge_port->icount, sizeof(edge_port->icount))) | |
2720 | return -EFAULT; | |
2721 | return 0; | |
2722 | } | |
2723 | ||
2724 | return -ENOIOCTLCMD; | |
2725 | } | |
2726 | ||
2727 | static void edge_break (struct usb_serial_port *port, int break_state) | |
2728 | { | |
2729 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2730 | int status; | |
2731 | ||
441b62c1 | 2732 | dbg ("%s - state = %d", __func__, break_state); |
1da177e4 LT |
2733 | |
2734 | /* chase the port close */ | |
2735 | TIChasePort (edge_port, 0, 0); | |
2736 | ||
2737 | if (break_state == -1) { | |
2738 | status = TISetBreak (edge_port); | |
2739 | } else { | |
2740 | status = TIClearBreak (edge_port); | |
2741 | } | |
2742 | if (status) { | |
2743 | dbg ("%s - error %d sending break set/clear command.", | |
441b62c1 | 2744 | __func__, status); |
1da177e4 LT |
2745 | } |
2746 | } | |
2747 | ||
2748 | static int edge_startup (struct usb_serial *serial) | |
2749 | { | |
2750 | struct edgeport_serial *edge_serial; | |
2751 | struct edgeport_port *edge_port; | |
2752 | struct usb_device *dev; | |
2753 | int status; | |
2754 | int i; | |
2755 | ||
2756 | dev = serial->dev; | |
2757 | ||
2758 | /* create our private serial structure */ | |
80b6ca48 | 2759 | edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL); |
1da177e4 | 2760 | if (edge_serial == NULL) { |
441b62c1 | 2761 | dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); |
1da177e4 LT |
2762 | return -ENOMEM; |
2763 | } | |
241ca64f | 2764 | mutex_init(&edge_serial->es_lock); |
1da177e4 LT |
2765 | edge_serial->serial = serial; |
2766 | usb_set_serial_data(serial, edge_serial); | |
2767 | ||
2768 | status = TIDownloadFirmware (edge_serial); | |
2769 | if (status) { | |
2770 | kfree (edge_serial); | |
2771 | return status; | |
2772 | } | |
2773 | ||
2774 | /* set up our port private structures */ | |
2775 | for (i = 0; i < serial->num_ports; ++i) { | |
80b6ca48 | 2776 | edge_port = kzalloc(sizeof(struct edgeport_port), GFP_KERNEL); |
1da177e4 | 2777 | if (edge_port == NULL) { |
441b62c1 | 2778 | dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); |
1da177e4 LT |
2779 | goto cleanup; |
2780 | } | |
1da177e4 LT |
2781 | spin_lock_init(&edge_port->ep_lock); |
2782 | edge_port->ep_out_buf = edge_buf_alloc(EDGE_OUT_BUF_SIZE); | |
2783 | if (edge_port->ep_out_buf == NULL) { | |
441b62c1 | 2784 | dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); |
1da177e4 LT |
2785 | kfree(edge_port); |
2786 | goto cleanup; | |
2787 | } | |
2788 | edge_port->port = serial->port[i]; | |
2789 | edge_port->edge_serial = edge_serial; | |
2790 | usb_set_serial_port_data(serial->port[i], edge_port); | |
fc4cbd75 | 2791 | edge_port->bUartMode = default_uart_mode; |
1da177e4 LT |
2792 | } |
2793 | ||
2794 | return 0; | |
2795 | ||
2796 | cleanup: | |
2797 | for (--i; i>=0; --i) { | |
2798 | edge_port = usb_get_serial_port_data(serial->port[i]); | |
2799 | edge_buf_free(edge_port->ep_out_buf); | |
2800 | kfree(edge_port); | |
2801 | usb_set_serial_port_data(serial->port[i], NULL); | |
2802 | } | |
2803 | kfree (edge_serial); | |
2804 | usb_set_serial_data(serial, NULL); | |
2805 | return -ENOMEM; | |
2806 | } | |
2807 | ||
2808 | static void edge_shutdown (struct usb_serial *serial) | |
2809 | { | |
2810 | int i; | |
2811 | struct edgeport_port *edge_port; | |
2812 | ||
441b62c1 | 2813 | dbg ("%s", __func__); |
1da177e4 | 2814 | |
0d46c007 | 2815 | for (i = 0; i < serial->num_ports; ++i) { |
1da177e4 | 2816 | edge_port = usb_get_serial_port_data(serial->port[i]); |
fc4cbd75 | 2817 | edge_remove_sysfs_attrs(edge_port->port); |
0d46c007 JJ |
2818 | edge_buf_free(edge_port->ep_out_buf); |
2819 | kfree(edge_port); | |
1da177e4 LT |
2820 | usb_set_serial_port_data(serial->port[i], NULL); |
2821 | } | |
0d46c007 | 2822 | kfree(usb_get_serial_data(serial)); |
1da177e4 LT |
2823 | usb_set_serial_data(serial, NULL); |
2824 | } | |
2825 | ||
2826 | ||
fc4cbd75 MP |
2827 | /* Sysfs Attributes */ |
2828 | ||
2829 | static ssize_t show_uart_mode(struct device *dev, | |
2830 | struct device_attribute *attr, char *buf) | |
2831 | { | |
2832 | struct usb_serial_port *port = to_usb_serial_port(dev); | |
2833 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2834 | ||
2835 | return sprintf(buf, "%d\n", edge_port->bUartMode); | |
2836 | } | |
2837 | ||
2838 | static ssize_t store_uart_mode(struct device *dev, | |
2839 | struct device_attribute *attr, const char *valbuf, size_t count) | |
2840 | { | |
2841 | struct usb_serial_port *port = to_usb_serial_port(dev); | |
2842 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2843 | unsigned int v = simple_strtoul(valbuf, NULL, 0); | |
2844 | ||
441b62c1 | 2845 | dbg("%s: setting uart_mode = %d", __func__, v); |
fc4cbd75 MP |
2846 | |
2847 | if (v < 256) | |
2848 | edge_port->bUartMode = v; | |
2849 | else | |
441b62c1 | 2850 | dev_err(dev, "%s - uart_mode %d is invalid\n", __func__, v); |
fc4cbd75 MP |
2851 | |
2852 | return count; | |
2853 | } | |
2854 | ||
2855 | static DEVICE_ATTR(uart_mode, S_IWUSR | S_IRUGO, show_uart_mode, store_uart_mode); | |
2856 | ||
2857 | static int edge_create_sysfs_attrs(struct usb_serial_port *port) | |
2858 | { | |
2859 | return device_create_file(&port->dev, &dev_attr_uart_mode); | |
2860 | } | |
2861 | ||
2862 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port) | |
2863 | { | |
2864 | device_remove_file(&port->dev, &dev_attr_uart_mode); | |
2865 | return 0; | |
2866 | } | |
2867 | ||
2868 | ||
1da177e4 LT |
2869 | /* Circular Buffer */ |
2870 | ||
2871 | /* | |
2872 | * edge_buf_alloc | |
2873 | * | |
2874 | * Allocate a circular buffer and all associated memory. | |
2875 | */ | |
2876 | ||
2877 | static struct edge_buf *edge_buf_alloc(unsigned int size) | |
2878 | { | |
2879 | struct edge_buf *eb; | |
2880 | ||
2881 | ||
2882 | if (size == 0) | |
2883 | return NULL; | |
2884 | ||
5cbded58 | 2885 | eb = kmalloc(sizeof(struct edge_buf), GFP_KERNEL); |
1da177e4 LT |
2886 | if (eb == NULL) |
2887 | return NULL; | |
2888 | ||
2889 | eb->buf_buf = kmalloc(size, GFP_KERNEL); | |
2890 | if (eb->buf_buf == NULL) { | |
2891 | kfree(eb); | |
2892 | return NULL; | |
2893 | } | |
2894 | ||
2895 | eb->buf_size = size; | |
2896 | eb->buf_get = eb->buf_put = eb->buf_buf; | |
2897 | ||
2898 | return eb; | |
2899 | } | |
2900 | ||
2901 | ||
2902 | /* | |
2903 | * edge_buf_free | |
2904 | * | |
2905 | * Free the buffer and all associated memory. | |
2906 | */ | |
2907 | ||
3d48586c | 2908 | static void edge_buf_free(struct edge_buf *eb) |
1da177e4 | 2909 | { |
1bc3c9e1 JJ |
2910 | if (eb) { |
2911 | kfree(eb->buf_buf); | |
1da177e4 LT |
2912 | kfree(eb); |
2913 | } | |
2914 | } | |
2915 | ||
2916 | ||
2917 | /* | |
2918 | * edge_buf_clear | |
2919 | * | |
2920 | * Clear out all data in the circular buffer. | |
2921 | */ | |
2922 | ||
2923 | static void edge_buf_clear(struct edge_buf *eb) | |
2924 | { | |
2925 | if (eb != NULL) | |
2926 | eb->buf_get = eb->buf_put; | |
2927 | /* equivalent to a get of all data available */ | |
2928 | } | |
2929 | ||
2930 | ||
2931 | /* | |
2932 | * edge_buf_data_avail | |
2933 | * | |
2934 | * Return the number of bytes of data available in the circular | |
2935 | * buffer. | |
2936 | */ | |
2937 | ||
2938 | static unsigned int edge_buf_data_avail(struct edge_buf *eb) | |
2939 | { | |
2940 | if (eb != NULL) | |
2941 | return ((eb->buf_size + eb->buf_put - eb->buf_get) % eb->buf_size); | |
2942 | else | |
2943 | return 0; | |
2944 | } | |
2945 | ||
2946 | ||
2947 | /* | |
2948 | * edge_buf_space_avail | |
2949 | * | |
2950 | * Return the number of bytes of space available in the circular | |
2951 | * buffer. | |
2952 | */ | |
2953 | ||
2954 | static unsigned int edge_buf_space_avail(struct edge_buf *eb) | |
2955 | { | |
2956 | if (eb != NULL) | |
2957 | return ((eb->buf_size + eb->buf_get - eb->buf_put - 1) % eb->buf_size); | |
2958 | else | |
2959 | return 0; | |
2960 | } | |
2961 | ||
2962 | ||
2963 | /* | |
2964 | * edge_buf_put | |
2965 | * | |
2966 | * Copy data data from a user buffer and put it into the circular buffer. | |
2967 | * Restrict to the amount of space available. | |
2968 | * | |
2969 | * Return the number of bytes copied. | |
2970 | */ | |
2971 | ||
2972 | static unsigned int edge_buf_put(struct edge_buf *eb, const char *buf, | |
2973 | unsigned int count) | |
2974 | { | |
2975 | unsigned int len; | |
2976 | ||
2977 | ||
2978 | if (eb == NULL) | |
2979 | return 0; | |
2980 | ||
2981 | len = edge_buf_space_avail(eb); | |
2982 | if (count > len) | |
2983 | count = len; | |
2984 | ||
2985 | if (count == 0) | |
2986 | return 0; | |
2987 | ||
2988 | len = eb->buf_buf + eb->buf_size - eb->buf_put; | |
2989 | if (count > len) { | |
2990 | memcpy(eb->buf_put, buf, len); | |
2991 | memcpy(eb->buf_buf, buf+len, count - len); | |
2992 | eb->buf_put = eb->buf_buf + count - len; | |
2993 | } else { | |
2994 | memcpy(eb->buf_put, buf, count); | |
2995 | if (count < len) | |
2996 | eb->buf_put += count; | |
2997 | else /* count == len */ | |
2998 | eb->buf_put = eb->buf_buf; | |
2999 | } | |
3000 | ||
3001 | return count; | |
3002 | } | |
3003 | ||
3004 | ||
3005 | /* | |
3006 | * edge_buf_get | |
3007 | * | |
3008 | * Get data from the circular buffer and copy to the given buffer. | |
3009 | * Restrict to the amount of data available. | |
3010 | * | |
3011 | * Return the number of bytes copied. | |
3012 | */ | |
3013 | ||
3014 | static unsigned int edge_buf_get(struct edge_buf *eb, char *buf, | |
3015 | unsigned int count) | |
3016 | { | |
3017 | unsigned int len; | |
3018 | ||
3019 | ||
3020 | if (eb == NULL) | |
3021 | return 0; | |
3022 | ||
3023 | len = edge_buf_data_avail(eb); | |
3024 | if (count > len) | |
3025 | count = len; | |
3026 | ||
3027 | if (count == 0) | |
3028 | return 0; | |
3029 | ||
3030 | len = eb->buf_buf + eb->buf_size - eb->buf_get; | |
3031 | if (count > len) { | |
3032 | memcpy(buf, eb->buf_get, len); | |
3033 | memcpy(buf+len, eb->buf_buf, count - len); | |
3034 | eb->buf_get = eb->buf_buf + count - len; | |
3035 | } else { | |
3036 | memcpy(buf, eb->buf_get, count); | |
3037 | if (count < len) | |
3038 | eb->buf_get += count; | |
3039 | else /* count == len */ | |
3040 | eb->buf_get = eb->buf_buf; | |
3041 | } | |
3042 | ||
3043 | return count; | |
3044 | } | |
3045 | ||
3046 | ||
ea65370d | 3047 | static struct usb_serial_driver edgeport_1port_device = { |
18fcac35 | 3048 | .driver = { |
269bda1c GKH |
3049 | .owner = THIS_MODULE, |
3050 | .name = "edgeport_ti_1", | |
18fcac35 | 3051 | }, |
269bda1c | 3052 | .description = "Edgeport TI 1 port adapter", |
d9b1b787 | 3053 | .usb_driver = &io_driver, |
1da177e4 | 3054 | .id_table = edgeport_1port_id_table, |
1da177e4 LT |
3055 | .num_ports = 1, |
3056 | .open = edge_open, | |
3057 | .close = edge_close, | |
3058 | .throttle = edge_throttle, | |
3059 | .unthrottle = edge_unthrottle, | |
3060 | .attach = edge_startup, | |
3061 | .shutdown = edge_shutdown, | |
fc4cbd75 | 3062 | .port_probe = edge_create_sysfs_attrs, |
1da177e4 LT |
3063 | .ioctl = edge_ioctl, |
3064 | .set_termios = edge_set_termios, | |
3065 | .tiocmget = edge_tiocmget, | |
3066 | .tiocmset = edge_tiocmset, | |
3067 | .write = edge_write, | |
3068 | .write_room = edge_write_room, | |
3069 | .chars_in_buffer = edge_chars_in_buffer, | |
3070 | .break_ctl = edge_break, | |
3071 | .read_int_callback = edge_interrupt_callback, | |
3072 | .read_bulk_callback = edge_bulk_in_callback, | |
3073 | .write_bulk_callback = edge_bulk_out_callback, | |
3074 | }; | |
3075 | ||
ea65370d | 3076 | static struct usb_serial_driver edgeport_2port_device = { |
18fcac35 | 3077 | .driver = { |
269bda1c GKH |
3078 | .owner = THIS_MODULE, |
3079 | .name = "edgeport_ti_2", | |
18fcac35 | 3080 | }, |
269bda1c | 3081 | .description = "Edgeport TI 2 port adapter", |
d9b1b787 | 3082 | .usb_driver = &io_driver, |
1da177e4 | 3083 | .id_table = edgeport_2port_id_table, |
1da177e4 LT |
3084 | .num_ports = 2, |
3085 | .open = edge_open, | |
3086 | .close = edge_close, | |
3087 | .throttle = edge_throttle, | |
3088 | .unthrottle = edge_unthrottle, | |
3089 | .attach = edge_startup, | |
3090 | .shutdown = edge_shutdown, | |
fc4cbd75 | 3091 | .port_probe = edge_create_sysfs_attrs, |
1da177e4 LT |
3092 | .ioctl = edge_ioctl, |
3093 | .set_termios = edge_set_termios, | |
3094 | .tiocmget = edge_tiocmget, | |
3095 | .tiocmset = edge_tiocmset, | |
3096 | .write = edge_write, | |
3097 | .write_room = edge_write_room, | |
3098 | .chars_in_buffer = edge_chars_in_buffer, | |
3099 | .break_ctl = edge_break, | |
3100 | .read_int_callback = edge_interrupt_callback, | |
3101 | .read_bulk_callback = edge_bulk_in_callback, | |
3102 | .write_bulk_callback = edge_bulk_out_callback, | |
3103 | }; | |
3104 | ||
3105 | ||
3106 | static int __init edgeport_init(void) | |
3107 | { | |
3108 | int retval; | |
3109 | retval = usb_serial_register(&edgeport_1port_device); | |
3110 | if (retval) | |
3111 | goto failed_1port_device_register; | |
3112 | retval = usb_serial_register(&edgeport_2port_device); | |
3113 | if (retval) | |
3114 | goto failed_2port_device_register; | |
3115 | retval = usb_register(&io_driver); | |
3116 | if (retval) | |
3117 | goto failed_usb_register; | |
3118 | info(DRIVER_DESC " " DRIVER_VERSION); | |
3119 | return 0; | |
3120 | failed_usb_register: | |
3121 | usb_serial_deregister(&edgeport_2port_device); | |
3122 | failed_2port_device_register: | |
3123 | usb_serial_deregister(&edgeport_1port_device); | |
3124 | failed_1port_device_register: | |
3125 | return retval; | |
3126 | } | |
3127 | ||
3128 | static void __exit edgeport_exit (void) | |
3129 | { | |
3130 | usb_deregister (&io_driver); | |
3131 | usb_serial_deregister (&edgeport_1port_device); | |
3132 | usb_serial_deregister (&edgeport_2port_device); | |
3133 | } | |
3134 | ||
3135 | module_init(edgeport_init); | |
3136 | module_exit(edgeport_exit); | |
3137 | ||
3138 | /* Module information */ | |
3139 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
3140 | MODULE_DESCRIPTION(DRIVER_DESC); | |
3141 | MODULE_LICENSE("GPL"); | |
d12b219a | 3142 | MODULE_FIRMWARE("edgeport/down3.bin"); |
1da177e4 LT |
3143 | |
3144 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
3145 | MODULE_PARM_DESC(debug, "Debug enabled or not"); | |
3146 | ||
3147 | module_param(low_latency, bool, S_IRUGO | S_IWUSR); | |
3148 | MODULE_PARM_DESC(low_latency, "Low latency enabled or not"); | |
3149 | ||
3150 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); | |
3151 | MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs"); | |
3152 | ||
3153 | module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR); | |
3154 | MODULE_PARM_DESC(ignore_cpu_rev, "Ignore the cpu revision when connecting to a device"); | |
3155 | ||
fc4cbd75 MP |
3156 | module_param(default_uart_mode, int, S_IRUGO | S_IWUSR); |
3157 | MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ..."); | |
3158 |