Commit | Line | Data |
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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>. | |
1da177e4 LT |
18 | */ |
19 | ||
1da177e4 LT |
20 | #include <linux/kernel.h> |
21 | #include <linux/jiffies.h> | |
22 | #include <linux/errno.h> | |
23 | #include <linux/init.h> | |
24 | #include <linux/slab.h> | |
25 | #include <linux/tty.h> | |
26 | #include <linux/tty_driver.h> | |
27 | #include <linux/tty_flip.h> | |
28 | #include <linux/module.h> | |
29 | #include <linux/spinlock.h> | |
241ca64f | 30 | #include <linux/mutex.h> |
1da177e4 | 31 | #include <linux/serial.h> |
9e036f06 | 32 | #include <linux/swab.h> |
d733cec1 | 33 | #include <linux/kfifo.h> |
1da177e4 | 34 | #include <linux/ioctl.h> |
d12b219a | 35 | #include <linux/firmware.h> |
2742fd88 | 36 | #include <linux/uaccess.h> |
1da177e4 | 37 | #include <linux/usb.h> |
a969888c | 38 | #include <linux/usb/serial.h> |
1da177e4 | 39 | |
1da177e4 LT |
40 | #include "io_16654.h" |
41 | #include "io_usbvend.h" | |
42 | #include "io_ti.h" | |
43 | ||
1da177e4 LT |
44 | #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com> and David Iacovelli" |
45 | #define DRIVER_DESC "Edgeport USB Serial Driver" | |
46 | ||
1da177e4 LT |
47 | #define EPROM_PAGE_SIZE 64 |
48 | ||
49 | ||
1da177e4 LT |
50 | /* different hardware types */ |
51 | #define HARDWARE_TYPE_930 0 | |
52 | #define HARDWARE_TYPE_TIUMP 1 | |
53 | ||
2742fd88 AC |
54 | /* IOCTL_PRIVATE_TI_GET_MODE Definitions */ |
55 | #define TI_MODE_CONFIGURING 0 /* Device has not entered start device */ | |
56 | #define TI_MODE_BOOT 1 /* Staying in boot mode */ | |
57 | #define TI_MODE_DOWNLOAD 2 /* Made it to download mode */ | |
58 | #define TI_MODE_TRANSITIONING 3 /* Currently in boot mode but | |
59 | transitioning to download mode */ | |
1da177e4 LT |
60 | |
61 | /* read urb state */ | |
62 | #define EDGE_READ_URB_RUNNING 0 | |
63 | #define EDGE_READ_URB_STOPPING 1 | |
64 | #define EDGE_READ_URB_STOPPED 2 | |
65 | ||
1da177e4 LT |
66 | #define EDGE_CLOSING_WAIT 4000 /* in .01 sec */ |
67 | ||
68 | #define EDGE_OUT_BUF_SIZE 1024 | |
69 | ||
70 | ||
71 | /* Product information read from the Edgeport */ | |
2742fd88 AC |
72 | struct product_info { |
73 | int TiMode; /* Current TI Mode */ | |
74 | __u8 hardware_type; /* Type of hardware */ | |
1da177e4 LT |
75 | } __attribute__((packed)); |
76 | ||
1da177e4 LT |
77 | struct edgeport_port { |
78 | __u16 uart_base; | |
79 | __u16 dma_address; | |
80 | __u8 shadow_msr; | |
81 | __u8 shadow_mcr; | |
82 | __u8 shadow_lsr; | |
83 | __u8 lsr_mask; | |
19af5cdb | 84 | __u32 ump_read_timeout; /* Number of milliseconds the UMP will |
1da177e4 LT |
85 | wait without data before completing |
86 | a read short */ | |
87 | int baud_rate; | |
88 | int close_pending; | |
89 | int lsr_event; | |
48ee5801 | 90 | |
1da177e4 LT |
91 | struct edgeport_serial *edge_serial; |
92 | struct usb_serial_port *port; | |
2742fd88 | 93 | __u8 bUartMode; /* Port type, 0: RS232, etc. */ |
1da177e4 LT |
94 | spinlock_t ep_lock; |
95 | int ep_read_urb_state; | |
96 | int ep_write_urb_in_use; | |
d733cec1 | 97 | struct kfifo write_fifo; |
1da177e4 LT |
98 | }; |
99 | ||
100 | struct edgeport_serial { | |
101 | struct product_info product_info; | |
2742fd88 AC |
102 | u8 TI_I2C_Type; /* Type of I2C in UMP */ |
103 | u8 TiReadI2C; /* Set to TRUE if we have read the | |
104 | I2c in Boot Mode */ | |
241ca64f | 105 | struct mutex es_lock; |
1da177e4 LT |
106 | int num_ports_open; |
107 | struct usb_serial *serial; | |
108 | }; | |
109 | ||
110 | ||
111 | /* Devices that this driver supports */ | |
7d40d7e8 | 112 | static const struct usb_device_id edgeport_1port_id_table[] = { |
1da177e4 LT |
113 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, |
114 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, | |
115 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, | |
116 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, | |
117 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, | |
118 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, | |
119 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, | |
120 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, | |
121 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, | |
122 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, | |
123 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, | |
124 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, | |
125 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, | |
126 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, | |
127 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, | |
128 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, | |
129 | { } | |
130 | }; | |
131 | ||
7d40d7e8 | 132 | static const struct usb_device_id edgeport_2port_id_table[] = { |
1da177e4 LT |
133 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, |
134 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, | |
135 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, | |
136 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, | |
137 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, | |
138 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, | |
139 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, | |
140 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, | |
141 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, | |
142 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, | |
143 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, | |
144 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, | |
fc4cbd75 | 145 | /* The 4, 8 and 16 port devices show up as multiple 2 port devices */ |
1da177e4 | 146 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, |
fc4cbd75 MP |
147 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
148 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, | |
149 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, | |
150 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, | |
1da177e4 LT |
151 | { } |
152 | }; | |
153 | ||
154 | /* Devices that this driver supports */ | |
7d40d7e8 | 155 | static const struct usb_device_id id_table_combined[] = { |
1da177e4 LT |
156 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, |
157 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, | |
158 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, | |
159 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, | |
160 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, | |
161 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, | |
162 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, | |
163 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, | |
164 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, | |
165 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, | |
166 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, | |
167 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, | |
168 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, | |
169 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, | |
170 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, | |
171 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, | |
172 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, | |
173 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, | |
174 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, | |
175 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, | |
176 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, | |
177 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, | |
178 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, | |
179 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, | |
180 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, | |
181 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, | |
182 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, | |
183 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, | |
184 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, | |
fc4cbd75 MP |
185 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
186 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, | |
187 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, | |
188 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, | |
1da177e4 LT |
189 | { } |
190 | }; | |
191 | ||
2742fd88 | 192 | MODULE_DEVICE_TABLE(usb, id_table_combined); |
1da177e4 | 193 | |
d12b219a JS |
194 | static unsigned char OperationalMajorVersion; |
195 | static unsigned char OperationalMinorVersion; | |
196 | static unsigned short OperationalBuildNumber; | |
1da177e4 | 197 | |
1da177e4 | 198 | static int closing_wait = EDGE_CLOSING_WAIT; |
90ab5ee9 | 199 | static bool ignore_cpu_rev; |
2742fd88 | 200 | static int default_uart_mode; /* RS232 */ |
1da177e4 | 201 | |
2e124b4a JS |
202 | static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data, |
203 | int length); | |
1da177e4 LT |
204 | |
205 | static void stop_read(struct edgeport_port *edge_port); | |
206 | static int restart_read(struct edgeport_port *edge_port); | |
207 | ||
95da310e AC |
208 | static void edge_set_termios(struct tty_struct *tty, |
209 | struct usb_serial_port *port, struct ktermios *old_termios); | |
ae3759c2 | 210 | static void edge_send(struct usb_serial_port *port, struct tty_struct *tty); |
1da177e4 | 211 | |
fc4cbd75 MP |
212 | /* sysfs attributes */ |
213 | static int edge_create_sysfs_attrs(struct usb_serial_port *port); | |
214 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port); | |
215 | ||
1da177e4 | 216 | |
2742fd88 AC |
217 | static int ti_vread_sync(struct usb_device *dev, __u8 request, |
218 | __u16 value, __u16 index, u8 *data, int size) | |
1da177e4 LT |
219 | { |
220 | int status; | |
221 | ||
2742fd88 AC |
222 | status = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request, |
223 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), | |
224 | value, index, data, size, 1000); | |
1da177e4 LT |
225 | if (status < 0) |
226 | return status; | |
227 | if (status != size) { | |
67e6da70 GKH |
228 | dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n", |
229 | __func__, size, status); | |
1da177e4 LT |
230 | return -ECOMM; |
231 | } | |
232 | return 0; | |
233 | } | |
234 | ||
2742fd88 AC |
235 | static int ti_vsend_sync(struct usb_device *dev, __u8 request, |
236 | __u16 value, __u16 index, u8 *data, int size) | |
1da177e4 LT |
237 | { |
238 | int status; | |
239 | ||
2742fd88 AC |
240 | status = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request, |
241 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), | |
242 | value, index, data, size, 1000); | |
1da177e4 LT |
243 | if (status < 0) |
244 | return status; | |
245 | if (status != size) { | |
67e6da70 GKH |
246 | dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n", |
247 | __func__, size, status); | |
1da177e4 LT |
248 | return -ECOMM; |
249 | } | |
250 | return 0; | |
251 | } | |
252 | ||
2742fd88 | 253 | static int send_cmd(struct usb_device *dev, __u8 command, |
1da177e4 LT |
254 | __u8 moduleid, __u16 value, u8 *data, |
255 | int size) | |
256 | { | |
2742fd88 | 257 | return ti_vsend_sync(dev, command, value, moduleid, data, size); |
1da177e4 LT |
258 | } |
259 | ||
260 | /* clear tx/rx buffers and fifo in TI UMP */ | |
2742fd88 | 261 | static int purge_port(struct usb_serial_port *port, __u16 mask) |
1da177e4 LT |
262 | { |
263 | int port_number = port->number - port->serial->minor; | |
264 | ||
67e6da70 | 265 | dev_dbg(&port->dev, "%s - port %d, mask %x\n", __func__, port_number, mask); |
1da177e4 | 266 | |
2742fd88 | 267 | return send_cmd(port->serial->dev, |
1da177e4 LT |
268 | UMPC_PURGE_PORT, |
269 | (__u8)(UMPM_UART1_PORT + port_number), | |
270 | mask, | |
271 | NULL, | |
272 | 0); | |
273 | } | |
274 | ||
275 | /** | |
2742fd88 | 276 | * read_download_mem - Read edgeport memory from TI chip |
1da177e4 LT |
277 | * @dev: usb device pointer |
278 | * @start_address: Device CPU address at which to read | |
279 | * @length: Length of above data | |
280 | * @address_type: Can read both XDATA and I2C | |
281 | * @buffer: pointer to input data buffer | |
282 | */ | |
2742fd88 | 283 | static int read_download_mem(struct usb_device *dev, int start_address, |
1da177e4 LT |
284 | int length, __u8 address_type, __u8 *buffer) |
285 | { | |
286 | int status = 0; | |
287 | __u8 read_length; | |
9e036f06 | 288 | u16 be_start_address; |
2742fd88 | 289 | |
67e6da70 | 290 | dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, length); |
1da177e4 LT |
291 | |
292 | /* Read in blocks of 64 bytes | |
293 | * (TI firmware can't handle more than 64 byte reads) | |
294 | */ | |
295 | while (length) { | |
296 | if (length > 64) | |
2742fd88 | 297 | read_length = 64; |
1da177e4 LT |
298 | else |
299 | read_length = (__u8)length; | |
300 | ||
301 | if (read_length > 1) { | |
67e6da70 | 302 | dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, read_length); |
1da177e4 | 303 | } |
9e036f06 JH |
304 | /* |
305 | * NOTE: Must use swab as wIndex is sent in little-endian | |
306 | * byte order regardless of host byte order. | |
307 | */ | |
308 | be_start_address = swab16((u16)start_address); | |
2742fd88 AC |
309 | status = ti_vread_sync(dev, UMPC_MEMORY_READ, |
310 | (__u16)address_type, | |
9e036f06 | 311 | be_start_address, |
2742fd88 | 312 | buffer, read_length); |
1da177e4 LT |
313 | |
314 | if (status) { | |
67e6da70 | 315 | dev_dbg(&dev->dev, "%s - ERROR %x\n", __func__, status); |
1da177e4 LT |
316 | return status; |
317 | } | |
318 | ||
2742fd88 | 319 | if (read_length > 1) |
59d33f2f | 320 | usb_serial_debug_data(&dev->dev, __func__, read_length, buffer); |
1da177e4 LT |
321 | |
322 | /* Update pointers/length */ | |
323 | start_address += read_length; | |
324 | buffer += read_length; | |
325 | length -= read_length; | |
326 | } | |
2742fd88 | 327 | |
1da177e4 LT |
328 | return status; |
329 | } | |
330 | ||
2742fd88 AC |
331 | static int read_ram(struct usb_device *dev, int start_address, |
332 | int length, __u8 *buffer) | |
1da177e4 | 333 | { |
2742fd88 AC |
334 | return read_download_mem(dev, start_address, length, |
335 | DTK_ADDR_SPACE_XDATA, buffer); | |
1da177e4 LT |
336 | } |
337 | ||
338 | /* Read edgeport memory to a given block */ | |
2742fd88 AC |
339 | static int read_boot_mem(struct edgeport_serial *serial, |
340 | int start_address, int length, __u8 *buffer) | |
1da177e4 LT |
341 | { |
342 | int status = 0; | |
343 | int i; | |
344 | ||
2742fd88 AC |
345 | for (i = 0; i < length; i++) { |
346 | status = ti_vread_sync(serial->serial->dev, | |
347 | UMPC_MEMORY_READ, serial->TI_I2C_Type, | |
348 | (__u16)(start_address+i), &buffer[i], 0x01); | |
1da177e4 | 349 | if (status) { |
67e6da70 | 350 | dev_dbg(&serial->serial->dev->dev, "%s - ERROR %x\n", __func__, status); |
1da177e4 LT |
351 | return status; |
352 | } | |
353 | } | |
354 | ||
67e6da70 GKH |
355 | dev_dbg(&serial->serial->dev->dev, "%s - start_address = %x, length = %d\n", |
356 | __func__, start_address, length); | |
59d33f2f | 357 | usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer); |
1da177e4 LT |
358 | |
359 | serial->TiReadI2C = 1; | |
360 | ||
361 | return status; | |
362 | } | |
363 | ||
364 | /* Write given block to TI EPROM memory */ | |
2742fd88 AC |
365 | static int write_boot_mem(struct edgeport_serial *serial, |
366 | int start_address, int length, __u8 *buffer) | |
1da177e4 LT |
367 | { |
368 | int status = 0; | |
369 | int i; | |
e9305d2f | 370 | u8 *temp; |
1da177e4 LT |
371 | |
372 | /* Must do a read before write */ | |
373 | if (!serial->TiReadI2C) { | |
e9305d2f JH |
374 | temp = kmalloc(1, GFP_KERNEL); |
375 | if (!temp) { | |
376 | dev_err(&serial->serial->dev->dev, | |
377 | "%s - out of memory\n", __func__); | |
378 | return -ENOMEM; | |
379 | } | |
380 | status = read_boot_mem(serial, 0, 1, temp); | |
381 | kfree(temp); | |
1da177e4 LT |
382 | if (status) |
383 | return status; | |
384 | } | |
385 | ||
2742fd88 AC |
386 | for (i = 0; i < length; ++i) { |
387 | status = ti_vsend_sync(serial->serial->dev, | |
388 | UMPC_MEMORY_WRITE, buffer[i], | |
389 | (__u16)(i + start_address), NULL, 0); | |
1da177e4 LT |
390 | if (status) |
391 | return status; | |
392 | } | |
393 | ||
67e6da70 | 394 | dev_dbg(&serial->serial->dev->dev, "%s - start_sddr = %x, length = %d\n", __func__, start_address, length); |
59d33f2f | 395 | usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer); |
1da177e4 LT |
396 | |
397 | return status; | |
398 | } | |
399 | ||
400 | ||
401 | /* Write edgeport I2C memory to TI chip */ | |
2742fd88 AC |
402 | static int write_i2c_mem(struct edgeport_serial *serial, |
403 | int start_address, int length, __u8 address_type, __u8 *buffer) | |
1da177e4 | 404 | { |
67e6da70 | 405 | struct device *dev = &serial->serial->dev->dev; |
1da177e4 LT |
406 | int status = 0; |
407 | int write_length; | |
9e036f06 | 408 | u16 be_start_address; |
1da177e4 LT |
409 | |
410 | /* We can only send a maximum of 1 aligned byte page at a time */ | |
2742fd88 | 411 | |
25985edc | 412 | /* calculate the number of bytes left in the first page */ |
2742fd88 AC |
413 | write_length = EPROM_PAGE_SIZE - |
414 | (start_address & (EPROM_PAGE_SIZE - 1)); | |
1da177e4 LT |
415 | |
416 | if (write_length > length) | |
417 | write_length = length; | |
418 | ||
67e6da70 GKH |
419 | dev_dbg(dev, "%s - BytesInFirstPage Addr = %x, length = %d\n", |
420 | __func__, start_address, write_length); | |
59d33f2f | 421 | usb_serial_debug_data(dev, __func__, write_length, buffer); |
1da177e4 | 422 | |
9e036f06 JH |
423 | /* |
424 | * Write first page. | |
425 | * | |
426 | * NOTE: Must use swab as wIndex is sent in little-endian byte order | |
427 | * regardless of host byte order. | |
428 | */ | |
429 | be_start_address = swab16((u16)start_address); | |
2742fd88 AC |
430 | status = ti_vsend_sync(serial->serial->dev, |
431 | UMPC_MEMORY_WRITE, (__u16)address_type, | |
9e036f06 | 432 | be_start_address, |
2742fd88 | 433 | buffer, write_length); |
1da177e4 | 434 | if (status) { |
67e6da70 | 435 | dev_dbg(dev, "%s - ERROR %d\n", __func__, status); |
1da177e4 LT |
436 | return status; |
437 | } | |
438 | ||
439 | length -= write_length; | |
440 | start_address += write_length; | |
441 | buffer += write_length; | |
442 | ||
2742fd88 AC |
443 | /* We should be aligned now -- can write |
444 | max page size bytes at a time */ | |
1da177e4 LT |
445 | while (length) { |
446 | if (length > EPROM_PAGE_SIZE) | |
447 | write_length = EPROM_PAGE_SIZE; | |
448 | else | |
449 | write_length = length; | |
450 | ||
67e6da70 GKH |
451 | dev_dbg(dev, "%s - Page Write Addr = %x, length = %d\n", |
452 | __func__, start_address, write_length); | |
59d33f2f | 453 | usb_serial_debug_data(dev, __func__, write_length, buffer); |
1da177e4 | 454 | |
9e036f06 JH |
455 | /* |
456 | * Write next page. | |
457 | * | |
458 | * NOTE: Must use swab as wIndex is sent in little-endian byte | |
459 | * order regardless of host byte order. | |
460 | */ | |
461 | be_start_address = swab16((u16)start_address); | |
2742fd88 AC |
462 | status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE, |
463 | (__u16)address_type, | |
9e036f06 | 464 | be_start_address, |
2742fd88 | 465 | buffer, write_length); |
1da177e4 | 466 | if (status) { |
67e6da70 | 467 | dev_err(dev, "%s - ERROR %d\n", __func__, status); |
1da177e4 LT |
468 | return status; |
469 | } | |
2742fd88 | 470 | |
1da177e4 LT |
471 | length -= write_length; |
472 | start_address += write_length; | |
473 | buffer += write_length; | |
474 | } | |
475 | return status; | |
476 | } | |
477 | ||
478 | /* Examine the UMP DMA registers and LSR | |
2742fd88 | 479 | * |
1da177e4 LT |
480 | * Check the MSBit of the X and Y DMA byte count registers. |
481 | * A zero in this bit indicates that the TX DMA buffers are empty | |
482 | * then check the TX Empty bit in the UART. | |
483 | */ | |
2742fd88 | 484 | static int tx_active(struct edgeport_port *port) |
1da177e4 LT |
485 | { |
486 | int status; | |
487 | struct out_endpoint_desc_block *oedb; | |
488 | __u8 *lsr; | |
489 | int bytes_left = 0; | |
490 | ||
2742fd88 | 491 | oedb = kmalloc(sizeof(*oedb), GFP_KERNEL); |
1da177e4 | 492 | if (!oedb) { |
2742fd88 | 493 | dev_err(&port->port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
494 | return -ENOMEM; |
495 | } | |
496 | ||
2742fd88 | 497 | lsr = kmalloc(1, GFP_KERNEL); /* Sigh, that's right, just one byte, |
1da177e4 LT |
498 | as not all platforms can do DMA |
499 | from stack */ | |
500 | if (!lsr) { | |
501 | kfree(oedb); | |
502 | return -ENOMEM; | |
503 | } | |
504 | /* Read the DMA Count Registers */ | |
2742fd88 AC |
505 | status = read_ram(port->port->serial->dev, port->dma_address, |
506 | sizeof(*oedb), (void *)oedb); | |
1da177e4 LT |
507 | if (status) |
508 | goto exit_is_tx_active; | |
509 | ||
67e6da70 | 510 | dev_dbg(&port->port->dev, "%s - XByteCount 0x%X\n", __func__, oedb->XByteCount); |
1da177e4 LT |
511 | |
512 | /* and the LSR */ | |
2742fd88 AC |
513 | status = read_ram(port->port->serial->dev, |
514 | port->uart_base + UMPMEM_OFFS_UART_LSR, 1, lsr); | |
1da177e4 LT |
515 | |
516 | if (status) | |
517 | goto exit_is_tx_active; | |
67e6da70 | 518 | dev_dbg(&port->port->dev, "%s - LSR = 0x%X\n", __func__, *lsr); |
2742fd88 | 519 | |
1da177e4 | 520 | /* If either buffer has data or we are transmitting then return TRUE */ |
2742fd88 | 521 | if ((oedb->XByteCount & 0x80) != 0) |
1da177e4 LT |
522 | bytes_left += 64; |
523 | ||
2742fd88 | 524 | if ((*lsr & UMP_UART_LSR_TX_MASK) == 0) |
1da177e4 LT |
525 | bytes_left += 1; |
526 | ||
527 | /* We return Not Active if we get any kind of error */ | |
528 | exit_is_tx_active: | |
67e6da70 | 529 | dev_dbg(&port->port->dev, "%s - return %d\n", __func__, bytes_left); |
1da177e4 LT |
530 | |
531 | kfree(lsr); | |
532 | kfree(oedb); | |
533 | return bytes_left; | |
534 | } | |
535 | ||
2742fd88 | 536 | static int choose_config(struct usb_device *dev) |
1da177e4 | 537 | { |
2742fd88 AC |
538 | /* |
539 | * There may be multiple configurations on this device, in which case | |
540 | * we would need to read and parse all of them to find out which one | |
541 | * we want. However, we just support one config at this point, | |
542 | * configuration # 1, which is Config Descriptor 0. | |
543 | */ | |
1da177e4 | 544 | |
67e6da70 GKH |
545 | dev_dbg(&dev->dev, "%s - Number of Interfaces = %d\n", |
546 | __func__, dev->config->desc.bNumInterfaces); | |
547 | dev_dbg(&dev->dev, "%s - MAX Power = %d\n", | |
548 | __func__, dev->config->desc.bMaxPower * 2); | |
1da177e4 LT |
549 | |
550 | if (dev->config->desc.bNumInterfaces != 1) { | |
67e6da70 | 551 | dev_err(&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n", __func__); |
1da177e4 LT |
552 | return -ENODEV; |
553 | } | |
554 | ||
555 | return 0; | |
556 | } | |
557 | ||
2742fd88 AC |
558 | static int read_rom(struct edgeport_serial *serial, |
559 | int start_address, int length, __u8 *buffer) | |
1da177e4 LT |
560 | { |
561 | int status; | |
562 | ||
563 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { | |
2742fd88 | 564 | status = read_download_mem(serial->serial->dev, |
1da177e4 LT |
565 | start_address, |
566 | length, | |
567 | serial->TI_I2C_Type, | |
568 | buffer); | |
569 | } else { | |
2742fd88 AC |
570 | status = read_boot_mem(serial, start_address, length, |
571 | buffer); | |
1da177e4 | 572 | } |
1da177e4 LT |
573 | return status; |
574 | } | |
575 | ||
2742fd88 AC |
576 | static int write_rom(struct edgeport_serial *serial, int start_address, |
577 | int length, __u8 *buffer) | |
1da177e4 LT |
578 | { |
579 | if (serial->product_info.TiMode == TI_MODE_BOOT) | |
2742fd88 AC |
580 | return write_boot_mem(serial, start_address, length, |
581 | buffer); | |
1da177e4 LT |
582 | |
583 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) | |
2742fd88 AC |
584 | return write_i2c_mem(serial, start_address, length, |
585 | serial->TI_I2C_Type, buffer); | |
1da177e4 LT |
586 | return -EINVAL; |
587 | } | |
588 | ||
589 | ||
590 | ||
591 | /* Read a descriptor header from I2C based on type */ | |
2742fd88 AC |
592 | static int get_descriptor_addr(struct edgeport_serial *serial, |
593 | int desc_type, struct ti_i2c_desc *rom_desc) | |
1da177e4 LT |
594 | { |
595 | int start_address; | |
596 | int status; | |
597 | ||
598 | /* Search for requested descriptor in I2C */ | |
599 | start_address = 2; | |
600 | do { | |
2742fd88 | 601 | status = read_rom(serial, |
1da177e4 LT |
602 | start_address, |
603 | sizeof(struct ti_i2c_desc), | |
2742fd88 | 604 | (__u8 *)rom_desc); |
1da177e4 LT |
605 | if (status) |
606 | return 0; | |
607 | ||
608 | if (rom_desc->Type == desc_type) | |
609 | return start_address; | |
610 | ||
9e036f06 JH |
611 | start_address = start_address + sizeof(struct ti_i2c_desc) + |
612 | le16_to_cpu(rom_desc->Size); | |
1da177e4 LT |
613 | |
614 | } while ((start_address < TI_MAX_I2C_SIZE) && rom_desc->Type); | |
2742fd88 | 615 | |
1da177e4 LT |
616 | return 0; |
617 | } | |
618 | ||
619 | /* Validate descriptor checksum */ | |
2742fd88 | 620 | static int valid_csum(struct ti_i2c_desc *rom_desc, __u8 *buffer) |
1da177e4 LT |
621 | { |
622 | __u16 i; | |
623 | __u8 cs = 0; | |
624 | ||
9e036f06 | 625 | for (i = 0; i < le16_to_cpu(rom_desc->Size); i++) |
1da177e4 | 626 | cs = (__u8)(cs + buffer[i]); |
2742fd88 | 627 | |
1da177e4 | 628 | if (cs != rom_desc->CheckSum) { |
67e6da70 | 629 | pr_debug("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs); |
1da177e4 LT |
630 | return -EINVAL; |
631 | } | |
632 | return 0; | |
633 | } | |
634 | ||
635 | /* Make sure that the I2C image is good */ | |
2742fd88 | 636 | static int check_i2c_image(struct edgeport_serial *serial) |
1da177e4 LT |
637 | { |
638 | struct device *dev = &serial->serial->dev->dev; | |
639 | int status = 0; | |
640 | struct ti_i2c_desc *rom_desc; | |
641 | int start_address = 2; | |
642 | __u8 *buffer; | |
643 | __u16 ttype; | |
644 | ||
2742fd88 | 645 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
1da177e4 | 646 | if (!rom_desc) { |
2742fd88 | 647 | dev_err(dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
648 | return -ENOMEM; |
649 | } | |
2742fd88 | 650 | buffer = kmalloc(TI_MAX_I2C_SIZE, GFP_KERNEL); |
1da177e4 | 651 | if (!buffer) { |
2742fd88 AC |
652 | dev_err(dev, "%s - out of memory when allocating buffer\n", |
653 | __func__); | |
654 | kfree(rom_desc); | |
1da177e4 LT |
655 | return -ENOMEM; |
656 | } | |
657 | ||
2742fd88 AC |
658 | /* Read the first byte (Signature0) must be 0x52 or 0x10 */ |
659 | status = read_rom(serial, 0, 1, buffer); | |
1da177e4 | 660 | if (status) |
2742fd88 | 661 | goto out; |
1da177e4 LT |
662 | |
663 | if (*buffer != UMP5152 && *buffer != UMP3410) { | |
2742fd88 | 664 | dev_err(dev, "%s - invalid buffer signature\n", __func__); |
1da177e4 | 665 | status = -ENODEV; |
2742fd88 | 666 | goto out; |
1da177e4 LT |
667 | } |
668 | ||
669 | do { | |
2742fd88 AC |
670 | /* Validate the I2C */ |
671 | status = read_rom(serial, | |
1da177e4 LT |
672 | start_address, |
673 | sizeof(struct ti_i2c_desc), | |
674 | (__u8 *)rom_desc); | |
675 | if (status) | |
676 | break; | |
677 | ||
2742fd88 | 678 | if ((start_address + sizeof(struct ti_i2c_desc) + |
9e036f06 | 679 | le16_to_cpu(rom_desc->Size)) > TI_MAX_I2C_SIZE) { |
1da177e4 | 680 | status = -ENODEV; |
67e6da70 | 681 | dev_dbg(dev, "%s - structure too big, erroring out.\n", __func__); |
1da177e4 LT |
682 | break; |
683 | } | |
684 | ||
67e6da70 | 685 | dev_dbg(dev, "%s Type = 0x%x\n", __func__, rom_desc->Type); |
1da177e4 | 686 | |
2742fd88 | 687 | /* Skip type 2 record */ |
1da177e4 | 688 | ttype = rom_desc->Type & 0x0f; |
2742fd88 AC |
689 | if (ttype != I2C_DESC_TYPE_FIRMWARE_BASIC |
690 | && ttype != I2C_DESC_TYPE_FIRMWARE_AUTO) { | |
691 | /* Read the descriptor data */ | |
692 | status = read_rom(serial, start_address + | |
693 | sizeof(struct ti_i2c_desc), | |
9e036f06 JH |
694 | le16_to_cpu(rom_desc->Size), |
695 | buffer); | |
1da177e4 LT |
696 | if (status) |
697 | break; | |
698 | ||
2742fd88 | 699 | status = valid_csum(rom_desc, buffer); |
1da177e4 LT |
700 | if (status) |
701 | break; | |
702 | } | |
2742fd88 | 703 | start_address = start_address + sizeof(struct ti_i2c_desc) + |
9e036f06 | 704 | le16_to_cpu(rom_desc->Size); |
1da177e4 | 705 | |
2742fd88 AC |
706 | } while ((rom_desc->Type != I2C_DESC_TYPE_ION) && |
707 | (start_address < TI_MAX_I2C_SIZE)); | |
1da177e4 | 708 | |
2742fd88 AC |
709 | if ((rom_desc->Type != I2C_DESC_TYPE_ION) || |
710 | (start_address > TI_MAX_I2C_SIZE)) | |
1da177e4 LT |
711 | status = -ENODEV; |
712 | ||
2742fd88 AC |
713 | out: |
714 | kfree(buffer); | |
715 | kfree(rom_desc); | |
1da177e4 LT |
716 | return status; |
717 | } | |
718 | ||
2742fd88 | 719 | static int get_manuf_info(struct edgeport_serial *serial, __u8 *buffer) |
1da177e4 LT |
720 | { |
721 | int status; | |
722 | int start_address; | |
723 | struct ti_i2c_desc *rom_desc; | |
724 | struct edge_ti_manuf_descriptor *desc; | |
67e6da70 | 725 | struct device *dev = &serial->serial->dev->dev; |
1da177e4 | 726 | |
2742fd88 | 727 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
1da177e4 | 728 | if (!rom_desc) { |
67e6da70 | 729 | dev_err(dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
730 | return -ENOMEM; |
731 | } | |
2742fd88 AC |
732 | start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_ION, |
733 | rom_desc); | |
1da177e4 LT |
734 | |
735 | if (!start_address) { | |
67e6da70 | 736 | dev_dbg(dev, "%s - Edge Descriptor not found in I2C\n", __func__); |
1da177e4 LT |
737 | status = -ENODEV; |
738 | goto exit; | |
739 | } | |
740 | ||
2742fd88 AC |
741 | /* Read the descriptor data */ |
742 | status = read_rom(serial, start_address+sizeof(struct ti_i2c_desc), | |
9e036f06 | 743 | le16_to_cpu(rom_desc->Size), buffer); |
1da177e4 LT |
744 | if (status) |
745 | goto exit; | |
2742fd88 AC |
746 | |
747 | status = valid_csum(rom_desc, buffer); | |
748 | ||
1da177e4 | 749 | desc = (struct edge_ti_manuf_descriptor *)buffer; |
67e6da70 GKH |
750 | dev_dbg(dev, "%s - IonConfig 0x%x\n", __func__, desc->IonConfig); |
751 | dev_dbg(dev, "%s - Version %d\n", __func__, desc->Version); | |
752 | dev_dbg(dev, "%s - Cpu/Board 0x%x\n", __func__, desc->CpuRev_BoardRev); | |
753 | dev_dbg(dev, "%s - NumPorts %d\n", __func__, desc->NumPorts); | |
754 | dev_dbg(dev, "%s - NumVirtualPorts %d\n", __func__, desc->NumVirtualPorts); | |
755 | dev_dbg(dev, "%s - TotalPorts %d\n", __func__, desc->TotalPorts); | |
1da177e4 LT |
756 | |
757 | exit: | |
2742fd88 | 758 | kfree(rom_desc); |
1da177e4 LT |
759 | return status; |
760 | } | |
761 | ||
762 | /* Build firmware header used for firmware update */ | |
2742fd88 | 763 | static int build_i2c_fw_hdr(__u8 *header, struct device *dev) |
1da177e4 LT |
764 | { |
765 | __u8 *buffer; | |
766 | int buffer_size; | |
767 | int i; | |
d12b219a | 768 | int err; |
1da177e4 LT |
769 | __u8 cs = 0; |
770 | struct ti_i2c_desc *i2c_header; | |
771 | struct ti_i2c_image_header *img_header; | |
772 | struct ti_i2c_firmware_rec *firmware_rec; | |
d12b219a JS |
773 | const struct firmware *fw; |
774 | const char *fw_name = "edgeport/down3.bin"; | |
1da177e4 | 775 | |
2742fd88 AC |
776 | /* In order to update the I2C firmware we must change the type 2 record |
777 | * to type 0xF2. This will force the UMP to come up in Boot Mode. | |
778 | * Then while in boot mode, the driver will download the latest | |
779 | * firmware (padded to 15.5k) into the UMP ram. And finally when the | |
780 | * device comes back up in download mode the driver will cause the new | |
781 | * firmware to be copied from the UMP Ram to I2C and the firmware will | |
782 | * update the record type from 0xf2 to 0x02. | |
783 | */ | |
784 | ||
785 | /* Allocate a 15.5k buffer + 2 bytes for version number | |
786 | * (Firmware Record) */ | |
787 | buffer_size = (((1024 * 16) - 512 ) + | |
788 | sizeof(struct ti_i2c_firmware_rec)); | |
789 | ||
790 | buffer = kmalloc(buffer_size, GFP_KERNEL); | |
1da177e4 | 791 | if (!buffer) { |
2742fd88 | 792 | dev_err(dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
793 | return -ENOMEM; |
794 | } | |
2742fd88 | 795 | |
1da177e4 | 796 | // Set entire image of 0xffs |
2742fd88 | 797 | memset(buffer, 0xff, buffer_size); |
1da177e4 | 798 | |
d12b219a JS |
799 | err = request_firmware(&fw, fw_name, dev); |
800 | if (err) { | |
d9bb03dc GKH |
801 | dev_err(dev, "Failed to load image \"%s\" err %d\n", |
802 | fw_name, err); | |
d12b219a JS |
803 | kfree(buffer); |
804 | return err; | |
805 | } | |
806 | ||
807 | /* Save Download Version Number */ | |
808 | OperationalMajorVersion = fw->data[0]; | |
809 | OperationalMinorVersion = fw->data[1]; | |
810 | OperationalBuildNumber = fw->data[2] | (fw->data[3] << 8); | |
811 | ||
2742fd88 | 812 | /* Copy version number into firmware record */ |
1da177e4 LT |
813 | firmware_rec = (struct ti_i2c_firmware_rec *)buffer; |
814 | ||
d12b219a JS |
815 | firmware_rec->Ver_Major = OperationalMajorVersion; |
816 | firmware_rec->Ver_Minor = OperationalMinorVersion; | |
1da177e4 | 817 | |
2742fd88 | 818 | /* Pointer to fw_down memory image */ |
d12b219a | 819 | img_header = (struct ti_i2c_image_header *)&fw->data[4]; |
1da177e4 | 820 | |
2742fd88 | 821 | memcpy(buffer + sizeof(struct ti_i2c_firmware_rec), |
d12b219a | 822 | &fw->data[4 + sizeof(struct ti_i2c_image_header)], |
1da177e4 LT |
823 | le16_to_cpu(img_header->Length)); |
824 | ||
d12b219a JS |
825 | release_firmware(fw); |
826 | ||
1da177e4 LT |
827 | for (i=0; i < buffer_size; i++) { |
828 | cs = (__u8)(cs + buffer[i]); | |
829 | } | |
830 | ||
2742fd88 | 831 | kfree(buffer); |
1da177e4 | 832 | |
2742fd88 | 833 | /* Build new header */ |
1da177e4 LT |
834 | i2c_header = (struct ti_i2c_desc *)header; |
835 | firmware_rec = (struct ti_i2c_firmware_rec*)i2c_header->Data; | |
2742fd88 | 836 | |
1da177e4 | 837 | i2c_header->Type = I2C_DESC_TYPE_FIRMWARE_BLANK; |
d7ecf010 | 838 | i2c_header->Size = cpu_to_le16(buffer_size); |
1da177e4 | 839 | i2c_header->CheckSum = cs; |
d12b219a JS |
840 | firmware_rec->Ver_Major = OperationalMajorVersion; |
841 | firmware_rec->Ver_Minor = OperationalMinorVersion; | |
1da177e4 LT |
842 | |
843 | return 0; | |
844 | } | |
845 | ||
846 | /* Try to figure out what type of I2c we have */ | |
2742fd88 | 847 | static int i2c_type_bootmode(struct edgeport_serial *serial) |
1da177e4 | 848 | { |
67e6da70 | 849 | struct device *dev = &serial->serial->dev->dev; |
1da177e4 | 850 | int status; |
e9305d2f JH |
851 | u8 *data; |
852 | ||
853 | data = kmalloc(1, GFP_KERNEL); | |
854 | if (!data) { | |
67e6da70 | 855 | dev_err(dev, "%s - out of memory\n", __func__); |
e9305d2f JH |
856 | return -ENOMEM; |
857 | } | |
2742fd88 AC |
858 | |
859 | /* Try to read type 2 */ | |
860 | status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, | |
e9305d2f | 861 | DTK_ADDR_SPACE_I2C_TYPE_II, 0, data, 0x01); |
1da177e4 | 862 | if (status) |
67e6da70 | 863 | dev_dbg(dev, "%s - read 2 status error = %d\n", __func__, status); |
1da177e4 | 864 | else |
67e6da70 | 865 | dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data); |
e9305d2f | 866 | if ((!status) && (*data == UMP5152 || *data == UMP3410)) { |
67e6da70 | 867 | dev_dbg(dev, "%s - ROM_TYPE_II\n", __func__); |
1da177e4 | 868 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
e9305d2f | 869 | goto out; |
1da177e4 LT |
870 | } |
871 | ||
2742fd88 AC |
872 | /* Try to read type 3 */ |
873 | status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, | |
e9305d2f | 874 | DTK_ADDR_SPACE_I2C_TYPE_III, 0, data, 0x01); |
1da177e4 | 875 | if (status) |
67e6da70 | 876 | dev_dbg(dev, "%s - read 3 status error = %d\n", __func__, status); |
1da177e4 | 877 | else |
67e6da70 | 878 | dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data); |
e9305d2f | 879 | if ((!status) && (*data == UMP5152 || *data == UMP3410)) { |
67e6da70 | 880 | dev_dbg(dev, "%s - ROM_TYPE_III\n", __func__); |
1da177e4 | 881 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III; |
e9305d2f | 882 | goto out; |
1da177e4 LT |
883 | } |
884 | ||
67e6da70 | 885 | dev_dbg(dev, "%s - Unknown\n", __func__); |
1da177e4 | 886 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
e9305d2f JH |
887 | status = -ENODEV; |
888 | out: | |
889 | kfree(data); | |
890 | return status; | |
1da177e4 LT |
891 | } |
892 | ||
2742fd88 AC |
893 | static int bulk_xfer(struct usb_serial *serial, void *buffer, |
894 | int length, int *num_sent) | |
1da177e4 LT |
895 | { |
896 | int status; | |
897 | ||
2742fd88 AC |
898 | status = usb_bulk_msg(serial->dev, |
899 | usb_sndbulkpipe(serial->dev, | |
900 | serial->port[0]->bulk_out_endpointAddress), | |
901 | buffer, length, num_sent, 1000); | |
1da177e4 LT |
902 | return status; |
903 | } | |
904 | ||
905 | /* Download given firmware image to the device (IN BOOT MODE) */ | |
2742fd88 AC |
906 | static int download_code(struct edgeport_serial *serial, __u8 *image, |
907 | int image_length) | |
1da177e4 LT |
908 | { |
909 | int status = 0; | |
910 | int pos; | |
911 | int transfer; | |
912 | int done; | |
913 | ||
2742fd88 | 914 | /* Transfer firmware image */ |
1da177e4 | 915 | for (pos = 0; pos < image_length; ) { |
2742fd88 | 916 | /* Read the next buffer from file */ |
1da177e4 LT |
917 | transfer = image_length - pos; |
918 | if (transfer > EDGE_FW_BULK_MAX_PACKET_SIZE) | |
919 | transfer = EDGE_FW_BULK_MAX_PACKET_SIZE; | |
920 | ||
2742fd88 AC |
921 | /* Transfer data */ |
922 | status = bulk_xfer(serial->serial, &image[pos], | |
923 | transfer, &done); | |
1da177e4 LT |
924 | if (status) |
925 | break; | |
2742fd88 | 926 | /* Advance buffer pointer */ |
1da177e4 LT |
927 | pos += done; |
928 | } | |
929 | ||
930 | return status; | |
931 | } | |
932 | ||
2742fd88 AC |
933 | /* FIXME!!! */ |
934 | static int config_boot_dev(struct usb_device *dev) | |
1da177e4 LT |
935 | { |
936 | return 0; | |
937 | } | |
938 | ||
2742fd88 AC |
939 | static int ti_cpu_rev(struct edge_ti_manuf_descriptor *desc) |
940 | { | |
941 | return TI_GET_CPU_REVISION(desc->CpuRev_BoardRev); | |
942 | } | |
943 | ||
1da177e4 LT |
944 | /** |
945 | * DownloadTIFirmware - Download run-time operating firmware to the TI5052 | |
2742fd88 | 946 | * |
1da177e4 LT |
947 | * This routine downloads the main operating code into the TI5052, using the |
948 | * boot code already burned into E2PROM or ROM. | |
949 | */ | |
2742fd88 | 950 | static int download_fw(struct edgeport_serial *serial) |
1da177e4 LT |
951 | { |
952 | struct device *dev = &serial->serial->dev->dev; | |
953 | int status = 0; | |
954 | int start_address; | |
955 | struct edge_ti_manuf_descriptor *ti_manuf_desc; | |
956 | struct usb_interface_descriptor *interface; | |
957 | int download_cur_ver; | |
958 | int download_new_ver; | |
959 | ||
960 | /* This routine is entered by both the BOOT mode and the Download mode | |
961 | * We can determine which code is running by the reading the config | |
962 | * descriptor and if we have only one bulk pipe it is in boot mode | |
963 | */ | |
964 | serial->product_info.hardware_type = HARDWARE_TYPE_TIUMP; | |
965 | ||
966 | /* Default to type 2 i2c */ | |
967 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; | |
968 | ||
2742fd88 | 969 | status = choose_config(serial->serial->dev); |
1da177e4 LT |
970 | if (status) |
971 | return status; | |
972 | ||
973 | interface = &serial->serial->interface->cur_altsetting->desc; | |
974 | if (!interface) { | |
2742fd88 | 975 | dev_err(dev, "%s - no interface set, error!\n", __func__); |
1da177e4 LT |
976 | return -ENODEV; |
977 | } | |
978 | ||
2742fd88 AC |
979 | /* |
980 | * Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING | |
981 | * if we have more than one endpoint we are definitely in download | |
982 | * mode | |
983 | */ | |
1da177e4 LT |
984 | if (interface->bNumEndpoints > 1) |
985 | serial->product_info.TiMode = TI_MODE_DOWNLOAD; | |
986 | else | |
2742fd88 | 987 | /* Otherwise we will remain in configuring mode */ |
1da177e4 LT |
988 | serial->product_info.TiMode = TI_MODE_CONFIGURING; |
989 | ||
1da177e4 LT |
990 | /********************************************************************/ |
991 | /* Download Mode */ | |
992 | /********************************************************************/ | |
993 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { | |
994 | struct ti_i2c_desc *rom_desc; | |
995 | ||
67e6da70 | 996 | dev_dbg(dev, "%s - RUNNING IN DOWNLOAD MODE\n", __func__); |
1da177e4 | 997 | |
2742fd88 | 998 | status = check_i2c_image(serial); |
1da177e4 | 999 | if (status) { |
67e6da70 | 1000 | dev_dbg(dev, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__); |
1da177e4 LT |
1001 | return status; |
1002 | } | |
2742fd88 | 1003 | |
1da177e4 LT |
1004 | /* Validate Hardware version number |
1005 | * Read Manufacturing Descriptor from TI Based Edgeport | |
1006 | */ | |
2742fd88 | 1007 | ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); |
1da177e4 | 1008 | if (!ti_manuf_desc) { |
2742fd88 | 1009 | dev_err(dev, "%s - out of memory.\n", __func__); |
1da177e4 LT |
1010 | return -ENOMEM; |
1011 | } | |
2742fd88 | 1012 | status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); |
1da177e4 | 1013 | if (status) { |
2742fd88 | 1014 | kfree(ti_manuf_desc); |
1da177e4 LT |
1015 | return status; |
1016 | } | |
1017 | ||
2742fd88 AC |
1018 | /* Check version number of ION descriptor */ |
1019 | if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { | |
67e6da70 | 1020 | dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n", |
2742fd88 AC |
1021 | __func__, ti_cpu_rev(ti_manuf_desc)); |
1022 | kfree(ti_manuf_desc); | |
1023 | return -EINVAL; | |
1024 | } | |
1da177e4 | 1025 | |
2742fd88 | 1026 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
1da177e4 | 1027 | if (!rom_desc) { |
2742fd88 AC |
1028 | dev_err(dev, "%s - out of memory.\n", __func__); |
1029 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1030 | return -ENOMEM; |
1031 | } | |
1032 | ||
2742fd88 AC |
1033 | /* Search for type 2 record (firmware record) */ |
1034 | start_address = get_descriptor_addr(serial, | |
1035 | I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc); | |
1036 | if (start_address != 0) { | |
1da177e4 | 1037 | struct ti_i2c_firmware_rec *firmware_version; |
e9305d2f | 1038 | u8 *record; |
1da177e4 | 1039 | |
67e6da70 | 1040 | dev_dbg(dev, "%s - Found Type FIRMWARE (Type 2) record\n", __func__); |
1da177e4 | 1041 | |
2742fd88 AC |
1042 | firmware_version = kmalloc(sizeof(*firmware_version), |
1043 | GFP_KERNEL); | |
1da177e4 | 1044 | if (!firmware_version) { |
2742fd88 AC |
1045 | dev_err(dev, "%s - out of memory.\n", __func__); |
1046 | kfree(rom_desc); | |
1047 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1048 | return -ENOMEM; |
1049 | } | |
1050 | ||
2742fd88 AC |
1051 | /* Validate version number |
1052 | * Read the descriptor data | |
1053 | */ | |
1054 | status = read_rom(serial, start_address + | |
1055 | sizeof(struct ti_i2c_desc), | |
1da177e4 LT |
1056 | sizeof(struct ti_i2c_firmware_rec), |
1057 | (__u8 *)firmware_version); | |
1058 | if (status) { | |
2742fd88 AC |
1059 | kfree(firmware_version); |
1060 | kfree(rom_desc); | |
1061 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1062 | return status; |
1063 | } | |
1064 | ||
2742fd88 AC |
1065 | /* Check version number of download with current |
1066 | version in I2c */ | |
1067 | download_cur_ver = (firmware_version->Ver_Major << 8) + | |
1da177e4 | 1068 | (firmware_version->Ver_Minor); |
d12b219a JS |
1069 | download_new_ver = (OperationalMajorVersion << 8) + |
1070 | (OperationalMinorVersion); | |
1da177e4 | 1071 | |
67e6da70 GKH |
1072 | dev_dbg(dev, "%s - >> FW Versions Device %d.%d Driver %d.%d\n", |
1073 | __func__, firmware_version->Ver_Major, | |
1074 | firmware_version->Ver_Minor, | |
1075 | OperationalMajorVersion, | |
1076 | OperationalMinorVersion); | |
1da177e4 | 1077 | |
2742fd88 AC |
1078 | /* Check if we have an old version in the I2C and |
1079 | update if necessary */ | |
0827a9ff | 1080 | if (download_cur_ver < download_new_ver) { |
67e6da70 GKH |
1081 | dev_dbg(dev, "%s - Update I2C dld from %d.%d to %d.%d\n", |
1082 | __func__, | |
1083 | firmware_version->Ver_Major, | |
1084 | firmware_version->Ver_Minor, | |
1085 | OperationalMajorVersion, | |
1086 | OperationalMinorVersion); | |
2742fd88 | 1087 | |
e9305d2f JH |
1088 | record = kmalloc(1, GFP_KERNEL); |
1089 | if (!record) { | |
1090 | dev_err(dev, "%s - out of memory.\n", | |
1091 | __func__); | |
1092 | kfree(firmware_version); | |
1093 | kfree(rom_desc); | |
1094 | kfree(ti_manuf_desc); | |
1095 | return -ENOMEM; | |
1096 | } | |
2742fd88 AC |
1097 | /* In order to update the I2C firmware we must |
1098 | * change the type 2 record to type 0xF2. This | |
1099 | * will force the UMP to come up in Boot Mode. | |
1100 | * Then while in boot mode, the driver will | |
1101 | * download the latest firmware (padded to | |
1102 | * 15.5k) into the UMP ram. Finally when the | |
1103 | * device comes back up in download mode the | |
1104 | * driver will cause the new firmware to be | |
1105 | * copied from the UMP Ram to I2C and the | |
1106 | * firmware will update the record type from | |
1107 | * 0xf2 to 0x02. | |
1108 | */ | |
e9305d2f | 1109 | *record = I2C_DESC_TYPE_FIRMWARE_BLANK; |
1da177e4 | 1110 | |
2742fd88 AC |
1111 | /* Change the I2C Firmware record type to |
1112 | 0xf2 to trigger an update */ | |
1113 | status = write_rom(serial, start_address, | |
e9305d2f | 1114 | sizeof(*record), record); |
1da177e4 | 1115 | if (status) { |
e9305d2f | 1116 | kfree(record); |
2742fd88 AC |
1117 | kfree(firmware_version); |
1118 | kfree(rom_desc); | |
1119 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1120 | return status; |
1121 | } | |
1122 | ||
2742fd88 AC |
1123 | /* verify the write -- must do this in order |
1124 | * for write to complete before we do the | |
1125 | * hardware reset | |
1126 | */ | |
1127 | status = read_rom(serial, | |
1da177e4 | 1128 | start_address, |
e9305d2f JH |
1129 | sizeof(*record), |
1130 | record); | |
1da177e4 | 1131 | if (status) { |
e9305d2f | 1132 | kfree(record); |
2742fd88 AC |
1133 | kfree(firmware_version); |
1134 | kfree(rom_desc); | |
1135 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1136 | return status; |
1137 | } | |
1138 | ||
e9305d2f | 1139 | if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) { |
67e6da70 | 1140 | dev_err(dev, "%s - error resetting device\n", __func__); |
e9305d2f | 1141 | kfree(record); |
2742fd88 AC |
1142 | kfree(firmware_version); |
1143 | kfree(rom_desc); | |
1144 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1145 | return -ENODEV; |
1146 | } | |
1147 | ||
67e6da70 | 1148 | dev_dbg(dev, "%s - HARDWARE RESET\n", __func__); |
1da177e4 | 1149 | |
2742fd88 AC |
1150 | /* Reset UMP -- Back to BOOT MODE */ |
1151 | status = ti_vsend_sync(serial->serial->dev, | |
1152 | UMPC_HARDWARE_RESET, | |
1153 | 0, 0, NULL, 0); | |
1da177e4 | 1154 | |
67e6da70 | 1155 | dev_dbg(dev, "%s - HARDWARE RESET return %d\n", __func__, status); |
1da177e4 LT |
1156 | |
1157 | /* return an error on purpose. */ | |
e9305d2f | 1158 | kfree(record); |
2742fd88 AC |
1159 | kfree(firmware_version); |
1160 | kfree(rom_desc); | |
1161 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1162 | return -ENODEV; |
1163 | } | |
2742fd88 | 1164 | kfree(firmware_version); |
1da177e4 | 1165 | } |
2742fd88 AC |
1166 | /* Search for type 0xF2 record (firmware blank record) */ |
1167 | else if ((start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc)) != 0) { | |
1168 | #define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \ | |
1169 | sizeof(struct ti_i2c_firmware_rec)) | |
1da177e4 LT |
1170 | __u8 *header; |
1171 | __u8 *vheader; | |
1172 | ||
2742fd88 | 1173 | header = kmalloc(HEADER_SIZE, GFP_KERNEL); |
1da177e4 | 1174 | if (!header) { |
2742fd88 AC |
1175 | dev_err(dev, "%s - out of memory.\n", __func__); |
1176 | kfree(rom_desc); | |
1177 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1178 | return -ENOMEM; |
1179 | } | |
2742fd88 AC |
1180 | |
1181 | vheader = kmalloc(HEADER_SIZE, GFP_KERNEL); | |
1da177e4 | 1182 | if (!vheader) { |
2742fd88 AC |
1183 | dev_err(dev, "%s - out of memory.\n", __func__); |
1184 | kfree(header); | |
1185 | kfree(rom_desc); | |
1186 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1187 | return -ENOMEM; |
1188 | } | |
2742fd88 | 1189 | |
67e6da70 | 1190 | dev_dbg(dev, "%s - Found Type BLANK FIRMWARE (Type F2) record\n", __func__); |
2742fd88 AC |
1191 | |
1192 | /* | |
1193 | * In order to update the I2C firmware we must change | |
1194 | * the type 2 record to type 0xF2. This will force the | |
1195 | * UMP to come up in Boot Mode. Then while in boot | |
1196 | * mode, the driver will download the latest firmware | |
1197 | * (padded to 15.5k) into the UMP ram. Finally when the | |
1198 | * device comes back up in download mode the driver | |
1199 | * will cause the new firmware to be copied from the | |
1200 | * UMP Ram to I2C and the firmware will update the | |
1201 | * record type from 0xf2 to 0x02. | |
1202 | */ | |
1203 | status = build_i2c_fw_hdr(header, dev); | |
1da177e4 | 1204 | if (status) { |
2742fd88 AC |
1205 | kfree(vheader); |
1206 | kfree(header); | |
1207 | kfree(rom_desc); | |
1208 | kfree(ti_manuf_desc); | |
fd6e5bbb | 1209 | return -EINVAL; |
1da177e4 LT |
1210 | } |
1211 | ||
2742fd88 AC |
1212 | /* Update I2C with type 0xf2 record with correct |
1213 | size and checksum */ | |
1214 | status = write_rom(serial, | |
1da177e4 LT |
1215 | start_address, |
1216 | HEADER_SIZE, | |
1217 | header); | |
1218 | if (status) { | |
2742fd88 AC |
1219 | kfree(vheader); |
1220 | kfree(header); | |
1221 | kfree(rom_desc); | |
1222 | kfree(ti_manuf_desc); | |
9800eb33 | 1223 | return -EINVAL; |
1da177e4 LT |
1224 | } |
1225 | ||
2742fd88 AC |
1226 | /* verify the write -- must do this in order for |
1227 | write to complete before we do the hardware reset */ | |
1228 | status = read_rom(serial, start_address, | |
1229 | HEADER_SIZE, vheader); | |
1da177e4 LT |
1230 | |
1231 | if (status) { | |
67e6da70 | 1232 | dev_dbg(dev, "%s - can't read header back\n", __func__); |
2742fd88 AC |
1233 | kfree(vheader); |
1234 | kfree(header); | |
1235 | kfree(rom_desc); | |
1236 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1237 | return status; |
1238 | } | |
1239 | if (memcmp(vheader, header, HEADER_SIZE)) { | |
67e6da70 | 1240 | dev_dbg(dev, "%s - write download record failed\n", __func__); |
2742fd88 AC |
1241 | kfree(vheader); |
1242 | kfree(header); | |
1243 | kfree(rom_desc); | |
1244 | kfree(ti_manuf_desc); | |
1e29709e | 1245 | return -EINVAL; |
1da177e4 LT |
1246 | } |
1247 | ||
2742fd88 AC |
1248 | kfree(vheader); |
1249 | kfree(header); | |
1da177e4 | 1250 | |
67e6da70 | 1251 | dev_dbg(dev, "%s - Start firmware update\n", __func__); |
1da177e4 | 1252 | |
2742fd88 AC |
1253 | /* Tell firmware to copy download image into I2C */ |
1254 | status = ti_vsend_sync(serial->serial->dev, | |
1255 | UMPC_COPY_DNLD_TO_I2C, 0, 0, NULL, 0); | |
1da177e4 | 1256 | |
67e6da70 | 1257 | dev_dbg(dev, "%s - Update complete 0x%x\n", __func__, status); |
1da177e4 | 1258 | if (status) { |
2742fd88 AC |
1259 | dev_err(dev, |
1260 | "%s - UMPC_COPY_DNLD_TO_I2C failed\n", | |
1261 | __func__); | |
1262 | kfree(rom_desc); | |
1263 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1264 | return status; |
1265 | } | |
1266 | } | |
1267 | ||
1268 | // The device is running the download code | |
2742fd88 AC |
1269 | kfree(rom_desc); |
1270 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1271 | return 0; |
1272 | } | |
1273 | ||
1274 | /********************************************************************/ | |
1275 | /* Boot Mode */ | |
1276 | /********************************************************************/ | |
67e6da70 | 1277 | dev_dbg(dev, "%s - RUNNING IN BOOT MODE\n", __func__); |
1da177e4 | 1278 | |
2742fd88 AC |
1279 | /* Configure the TI device so we can use the BULK pipes for download */ |
1280 | status = config_boot_dev(serial->serial->dev); | |
1da177e4 LT |
1281 | if (status) |
1282 | return status; | |
1283 | ||
2742fd88 AC |
1284 | if (le16_to_cpu(serial->serial->dev->descriptor.idVendor) |
1285 | != USB_VENDOR_ID_ION) { | |
67e6da70 GKH |
1286 | dev_dbg(dev, "%s - VID = 0x%x\n", __func__, |
1287 | le16_to_cpu(serial->serial->dev->descriptor.idVendor)); | |
1da177e4 | 1288 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
2742fd88 | 1289 | goto stayinbootmode; |
1da177e4 LT |
1290 | } |
1291 | ||
2742fd88 AC |
1292 | /* We have an ION device (I2c Must be programmed) |
1293 | Determine I2C image type */ | |
1294 | if (i2c_type_bootmode(serial)) | |
1295 | goto stayinbootmode; | |
1da177e4 | 1296 | |
2742fd88 AC |
1297 | /* Check for ION Vendor ID and that the I2C is valid */ |
1298 | if (!check_i2c_image(serial)) { | |
1da177e4 LT |
1299 | struct ti_i2c_image_header *header; |
1300 | int i; | |
1301 | __u8 cs = 0; | |
1302 | __u8 *buffer; | |
1303 | int buffer_size; | |
d12b219a JS |
1304 | int err; |
1305 | const struct firmware *fw; | |
1306 | const char *fw_name = "edgeport/down3.bin"; | |
1da177e4 LT |
1307 | |
1308 | /* Validate Hardware version number | |
1309 | * Read Manufacturing Descriptor from TI Based Edgeport | |
1310 | */ | |
2742fd88 | 1311 | ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); |
1da177e4 | 1312 | if (!ti_manuf_desc) { |
2742fd88 | 1313 | dev_err(dev, "%s - out of memory.\n", __func__); |
1da177e4 LT |
1314 | return -ENOMEM; |
1315 | } | |
2742fd88 | 1316 | status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); |
1da177e4 | 1317 | if (status) { |
2742fd88 AC |
1318 | kfree(ti_manuf_desc); |
1319 | goto stayinbootmode; | |
1da177e4 LT |
1320 | } |
1321 | ||
2742fd88 AC |
1322 | /* Check for version 2 */ |
1323 | if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { | |
67e6da70 GKH |
1324 | dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n", |
1325 | __func__, ti_cpu_rev(ti_manuf_desc)); | |
2742fd88 AC |
1326 | kfree(ti_manuf_desc); |
1327 | goto stayinbootmode; | |
1da177e4 LT |
1328 | } |
1329 | ||
2742fd88 | 1330 | kfree(ti_manuf_desc); |
1da177e4 | 1331 | |
1da177e4 | 1332 | /* |
2742fd88 AC |
1333 | * In order to update the I2C firmware we must change the type |
1334 | * 2 record to type 0xF2. This will force the UMP to come up | |
1335 | * in Boot Mode. Then while in boot mode, the driver will | |
1336 | * download the latest firmware (padded to 15.5k) into the | |
1337 | * UMP ram. Finally when the device comes back up in download | |
1338 | * mode the driver will cause the new firmware to be copied | |
1339 | * from the UMP Ram to I2C and the firmware will update the | |
1340 | * record type from 0xf2 to 0x02. | |
1341 | * | |
1da177e4 LT |
1342 | * Do we really have to copy the whole firmware image, |
1343 | * or could we do this in place! | |
1344 | */ | |
1345 | ||
2742fd88 AC |
1346 | /* Allocate a 15.5k buffer + 3 byte header */ |
1347 | buffer_size = (((1024 * 16) - 512) + | |
1348 | sizeof(struct ti_i2c_image_header)); | |
1349 | buffer = kmalloc(buffer_size, GFP_KERNEL); | |
1da177e4 | 1350 | if (!buffer) { |
2742fd88 | 1351 | dev_err(dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
1352 | return -ENOMEM; |
1353 | } | |
2742fd88 AC |
1354 | |
1355 | /* Initialize the buffer to 0xff (pad the buffer) */ | |
1356 | memset(buffer, 0xff, buffer_size); | |
1da177e4 | 1357 | |
d12b219a JS |
1358 | err = request_firmware(&fw, fw_name, dev); |
1359 | if (err) { | |
d9bb03dc GKH |
1360 | dev_err(dev, "Failed to load image \"%s\" err %d\n", |
1361 | fw_name, err); | |
d12b219a JS |
1362 | kfree(buffer); |
1363 | return err; | |
1364 | } | |
1365 | memcpy(buffer, &fw->data[4], fw->size - 4); | |
1366 | release_firmware(fw); | |
1da177e4 | 1367 | |
2742fd88 AC |
1368 | for (i = sizeof(struct ti_i2c_image_header); |
1369 | i < buffer_size; i++) { | |
1da177e4 LT |
1370 | cs = (__u8)(cs + buffer[i]); |
1371 | } | |
2742fd88 | 1372 | |
1da177e4 | 1373 | header = (struct ti_i2c_image_header *)buffer; |
2742fd88 AC |
1374 | |
1375 | /* update length and checksum after padding */ | |
1376 | header->Length = cpu_to_le16((__u16)(buffer_size - | |
1377 | sizeof(struct ti_i2c_image_header))); | |
1da177e4 LT |
1378 | header->CheckSum = cs; |
1379 | ||
2742fd88 | 1380 | /* Download the operational code */ |
67e6da70 | 1381 | dev_dbg(dev, "%s - Downloading operational code image (TI UMP)\n", __func__); |
2742fd88 | 1382 | status = download_code(serial, buffer, buffer_size); |
1da177e4 | 1383 | |
2742fd88 | 1384 | kfree(buffer); |
1da177e4 LT |
1385 | |
1386 | if (status) { | |
67e6da70 | 1387 | dev_dbg(dev, "%s - Error downloading operational code image\n", __func__); |
1da177e4 LT |
1388 | return status; |
1389 | } | |
1390 | ||
2742fd88 | 1391 | /* Device will reboot */ |
1da177e4 LT |
1392 | serial->product_info.TiMode = TI_MODE_TRANSITIONING; |
1393 | ||
67e6da70 | 1394 | dev_dbg(dev, "%s - Download successful -- Device rebooting...\n", __func__); |
1da177e4 | 1395 | |
a1bf279f | 1396 | return 1; |
1da177e4 LT |
1397 | } |
1398 | ||
2742fd88 AC |
1399 | stayinbootmode: |
1400 | /* Eprom is invalid or blank stay in boot mode */ | |
67e6da70 | 1401 | dev_dbg(dev, "%s - STAYING IN BOOT MODE\n", __func__); |
1da177e4 LT |
1402 | serial->product_info.TiMode = TI_MODE_BOOT; |
1403 | ||
7d04b5c6 | 1404 | return 1; |
1da177e4 LT |
1405 | } |
1406 | ||
1407 | ||
2742fd88 | 1408 | static int ti_do_config(struct edgeport_port *port, int feature, int on) |
1da177e4 LT |
1409 | { |
1410 | int port_number = port->port->number - port->port->serial->minor; | |
2742fd88 AC |
1411 | on = !!on; /* 1 or 0 not bitmask */ |
1412 | return send_cmd(port->port->serial->dev, | |
1413 | feature, (__u8)(UMPM_UART1_PORT + port_number), | |
1414 | on, NULL, 0); | |
1da177e4 LT |
1415 | } |
1416 | ||
1da177e4 | 1417 | |
2742fd88 | 1418 | static int restore_mcr(struct edgeport_port *port, __u8 mcr) |
1da177e4 LT |
1419 | { |
1420 | int status = 0; | |
1421 | ||
67e6da70 | 1422 | dev_dbg(&port->port->dev, "%s - %x\n", __func__, mcr); |
1da177e4 | 1423 | |
2742fd88 | 1424 | status = ti_do_config(port, UMPC_SET_CLR_DTR, mcr & MCR_DTR); |
1da177e4 LT |
1425 | if (status) |
1426 | return status; | |
2742fd88 | 1427 | status = ti_do_config(port, UMPC_SET_CLR_RTS, mcr & MCR_RTS); |
1da177e4 LT |
1428 | if (status) |
1429 | return status; | |
2742fd88 | 1430 | return ti_do_config(port, UMPC_SET_CLR_LOOPBACK, mcr & MCR_LOOPBACK); |
1da177e4 LT |
1431 | } |
1432 | ||
1da177e4 | 1433 | /* Convert TI LSR to standard UART flags */ |
2742fd88 | 1434 | static __u8 map_line_status(__u8 ti_lsr) |
1da177e4 LT |
1435 | { |
1436 | __u8 lsr = 0; | |
1437 | ||
1438 | #define MAP_FLAG(flagUmp, flagUart) \ | |
1439 | if (ti_lsr & flagUmp) \ | |
1440 | lsr |= flagUart; | |
1441 | ||
1442 | MAP_FLAG(UMP_UART_LSR_OV_MASK, LSR_OVER_ERR) /* overrun */ | |
1443 | MAP_FLAG(UMP_UART_LSR_PE_MASK, LSR_PAR_ERR) /* parity error */ | |
1444 | MAP_FLAG(UMP_UART_LSR_FE_MASK, LSR_FRM_ERR) /* framing error */ | |
1445 | MAP_FLAG(UMP_UART_LSR_BR_MASK, LSR_BREAK) /* break detected */ | |
2742fd88 AC |
1446 | MAP_FLAG(UMP_UART_LSR_RX_MASK, LSR_RX_AVAIL) /* rx data available */ |
1447 | MAP_FLAG(UMP_UART_LSR_TX_MASK, LSR_TX_EMPTY) /* tx hold reg empty */ | |
1da177e4 LT |
1448 | |
1449 | #undef MAP_FLAG | |
1450 | ||
1451 | return lsr; | |
1452 | } | |
1453 | ||
2742fd88 | 1454 | static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr) |
1da177e4 LT |
1455 | { |
1456 | struct async_icount *icount; | |
1457 | struct tty_struct *tty; | |
1458 | ||
67e6da70 | 1459 | dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, msr); |
1da177e4 | 1460 | |
2742fd88 AC |
1461 | if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | |
1462 | EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { | |
cf9a9d66 | 1463 | icount = &edge_port->port->icount; |
1da177e4 LT |
1464 | |
1465 | /* update input line counters */ | |
1466 | if (msr & EDGEPORT_MSR_DELTA_CTS) | |
1467 | icount->cts++; | |
1468 | if (msr & EDGEPORT_MSR_DELTA_DSR) | |
1469 | icount->dsr++; | |
1470 | if (msr & EDGEPORT_MSR_DELTA_CD) | |
1471 | icount->dcd++; | |
1472 | if (msr & EDGEPORT_MSR_DELTA_RI) | |
1473 | icount->rng++; | |
48ee5801 | 1474 | wake_up_interruptible(&edge_port->port->port.delta_msr_wait); |
1da177e4 LT |
1475 | } |
1476 | ||
1477 | /* Save the new modem status */ | |
1478 | edge_port->shadow_msr = msr & 0xf0; | |
1479 | ||
4a90f09b | 1480 | tty = tty_port_tty_get(&edge_port->port->port); |
1da177e4 LT |
1481 | /* handle CTS flow control */ |
1482 | if (tty && C_CRTSCTS(tty)) { | |
1483 | if (msr & EDGEPORT_MSR_CTS) { | |
1484 | tty->hw_stopped = 0; | |
1485 | tty_wakeup(tty); | |
1486 | } else { | |
1487 | tty->hw_stopped = 1; | |
1488 | } | |
1489 | } | |
4a90f09b | 1490 | tty_kref_put(tty); |
1da177e4 LT |
1491 | } |
1492 | ||
2742fd88 AC |
1493 | static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data, |
1494 | __u8 lsr, __u8 data) | |
1da177e4 LT |
1495 | { |
1496 | struct async_icount *icount; | |
2742fd88 AC |
1497 | __u8 new_lsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR | |
1498 | LSR_FRM_ERR | LSR_BREAK)); | |
1da177e4 | 1499 | |
67e6da70 | 1500 | dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr); |
1da177e4 LT |
1501 | |
1502 | edge_port->shadow_lsr = lsr; | |
1503 | ||
2742fd88 | 1504 | if (new_lsr & LSR_BREAK) |
1da177e4 LT |
1505 | /* |
1506 | * Parity and Framing errors only count if they | |
1507 | * occur exclusive of a break being received. | |
1508 | */ | |
1509 | new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK); | |
1da177e4 LT |
1510 | |
1511 | /* Place LSR data byte into Rx buffer */ | |
2e124b4a JS |
1512 | if (lsr_data) |
1513 | edge_tty_recv(edge_port->port, &data, 1); | |
1da177e4 LT |
1514 | |
1515 | /* update input line counters */ | |
cf9a9d66 | 1516 | icount = &edge_port->port->icount; |
1da177e4 LT |
1517 | if (new_lsr & LSR_BREAK) |
1518 | icount->brk++; | |
1519 | if (new_lsr & LSR_OVER_ERR) | |
1520 | icount->overrun++; | |
1521 | if (new_lsr & LSR_PAR_ERR) | |
1522 | icount->parity++; | |
1523 | if (new_lsr & LSR_FRM_ERR) | |
1524 | icount->frame++; | |
1525 | } | |
1526 | ||
1527 | ||
2742fd88 | 1528 | static void edge_interrupt_callback(struct urb *urb) |
1da177e4 | 1529 | { |
cdc97792 | 1530 | struct edgeport_serial *edge_serial = urb->context; |
1da177e4 LT |
1531 | struct usb_serial_port *port; |
1532 | struct edgeport_port *edge_port; | |
67e6da70 | 1533 | struct device *dev; |
1da177e4 LT |
1534 | unsigned char *data = urb->transfer_buffer; |
1535 | int length = urb->actual_length; | |
1536 | int port_number; | |
1537 | int function; | |
ee337c21 | 1538 | int retval; |
1da177e4 LT |
1539 | __u8 lsr; |
1540 | __u8 msr; | |
ee337c21 | 1541 | int status = urb->status; |
1da177e4 | 1542 | |
ee337c21 | 1543 | switch (status) { |
1da177e4 LT |
1544 | case 0: |
1545 | /* success */ | |
1546 | break; | |
1547 | case -ECONNRESET: | |
1548 | case -ENOENT: | |
1549 | case -ESHUTDOWN: | |
1550 | /* this urb is terminated, clean up */ | |
67e6da70 | 1551 | dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", |
441b62c1 | 1552 | __func__, status); |
1da177e4 LT |
1553 | return; |
1554 | default: | |
ee337c21 | 1555 | dev_err(&urb->dev->dev, "%s - nonzero urb status received: " |
441b62c1 | 1556 | "%d\n", __func__, status); |
1da177e4 LT |
1557 | goto exit; |
1558 | } | |
1559 | ||
1560 | if (!length) { | |
67e6da70 | 1561 | dev_dbg(&urb->dev->dev, "%s - no data in urb\n", __func__); |
1da177e4 LT |
1562 | goto exit; |
1563 | } | |
2742fd88 | 1564 | |
67e6da70 | 1565 | dev = &edge_serial->serial->dev->dev; |
59d33f2f | 1566 | usb_serial_debug_data(dev, __func__, length, data); |
2742fd88 | 1567 | |
1da177e4 | 1568 | if (length != 2) { |
67e6da70 | 1569 | dev_dbg(dev, "%s - expecting packet of size 2, got %d\n", __func__, length); |
1da177e4 LT |
1570 | goto exit; |
1571 | } | |
1572 | ||
2742fd88 AC |
1573 | port_number = TIUMP_GET_PORT_FROM_CODE(data[0]); |
1574 | function = TIUMP_GET_FUNC_FROM_CODE(data[0]); | |
67e6da70 GKH |
1575 | dev_dbg(dev, "%s - port_number %d, function %d, info 0x%x\n", __func__, |
1576 | port_number, function, data[1]); | |
58a600a7 JH |
1577 | |
1578 | if (port_number >= edge_serial->serial->num_ports) { | |
1579 | dev_err(dev, "bad port number %d\n", port_number); | |
1580 | goto exit; | |
1581 | } | |
1582 | ||
1da177e4 LT |
1583 | port = edge_serial->serial->port[port_number]; |
1584 | edge_port = usb_get_serial_port_data(port); | |
1585 | if (!edge_port) { | |
67e6da70 | 1586 | dev_dbg(dev, "%s - edge_port not found\n", __func__); |
1da177e4 LT |
1587 | return; |
1588 | } | |
1589 | switch (function) { | |
1590 | case TIUMP_INTERRUPT_CODE_LSR: | |
2742fd88 | 1591 | lsr = map_line_status(data[1]); |
1da177e4 | 1592 | if (lsr & UMP_UART_LSR_DATA_MASK) { |
2742fd88 AC |
1593 | /* Save the LSR event for bulk read |
1594 | completion routine */ | |
67e6da70 GKH |
1595 | dev_dbg(dev, "%s - LSR Event Port %u LSR Status = %02x\n", |
1596 | __func__, port_number, lsr); | |
1da177e4 LT |
1597 | edge_port->lsr_event = 1; |
1598 | edge_port->lsr_mask = lsr; | |
1599 | } else { | |
67e6da70 GKH |
1600 | dev_dbg(dev, "%s - ===== Port %d LSR Status = %02x ======\n", |
1601 | __func__, port_number, lsr); | |
2742fd88 | 1602 | handle_new_lsr(edge_port, 0, lsr, 0); |
1da177e4 LT |
1603 | } |
1604 | break; | |
1605 | ||
2742fd88 | 1606 | case TIUMP_INTERRUPT_CODE_MSR: /* MSR */ |
1da177e4 LT |
1607 | /* Copy MSR from UMP */ |
1608 | msr = data[1]; | |
67e6da70 GKH |
1609 | dev_dbg(dev, "%s - ===== Port %u MSR Status = %02x ======\n", |
1610 | __func__, port_number, msr); | |
2742fd88 | 1611 | handle_new_msr(edge_port, msr); |
1da177e4 LT |
1612 | break; |
1613 | ||
1614 | default: | |
2742fd88 AC |
1615 | dev_err(&urb->dev->dev, |
1616 | "%s - Unknown Interrupt code from UMP %x\n", | |
1617 | __func__, data[1]); | |
1da177e4 | 1618 | break; |
2742fd88 | 1619 | |
1da177e4 LT |
1620 | } |
1621 | ||
1622 | exit: | |
2742fd88 | 1623 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
ee337c21 | 1624 | if (retval) |
2742fd88 AC |
1625 | dev_err(&urb->dev->dev, |
1626 | "%s - usb_submit_urb failed with result %d\n", | |
441b62c1 | 1627 | __func__, retval); |
1da177e4 LT |
1628 | } |
1629 | ||
2742fd88 | 1630 | static void edge_bulk_in_callback(struct urb *urb) |
1da177e4 | 1631 | { |
cdc97792 | 1632 | struct edgeport_port *edge_port = urb->context; |
67e6da70 | 1633 | struct device *dev = &edge_port->port->dev; |
1da177e4 | 1634 | unsigned char *data = urb->transfer_buffer; |
ee337c21 | 1635 | int retval = 0; |
1da177e4 | 1636 | int port_number; |
ee337c21 | 1637 | int status = urb->status; |
1da177e4 | 1638 | |
ee337c21 | 1639 | switch (status) { |
1da177e4 LT |
1640 | case 0: |
1641 | /* success */ | |
1642 | break; | |
1643 | case -ECONNRESET: | |
1644 | case -ENOENT: | |
1645 | case -ESHUTDOWN: | |
1646 | /* this urb is terminated, clean up */ | |
67e6da70 | 1647 | dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", __func__, status); |
1da177e4 LT |
1648 | return; |
1649 | default: | |
67e6da70 | 1650 | dev_err(&urb->dev->dev, "%s - nonzero read bulk status received: %d\n", __func__, status); |
1da177e4 LT |
1651 | } |
1652 | ||
ee337c21 | 1653 | if (status == -EPIPE) |
1da177e4 LT |
1654 | goto exit; |
1655 | ||
ee337c21 | 1656 | if (status) { |
2742fd88 | 1657 | dev_err(&urb->dev->dev, "%s - stopping read!\n", __func__); |
1da177e4 LT |
1658 | return; |
1659 | } | |
1660 | ||
1661 | port_number = edge_port->port->number - edge_port->port->serial->minor; | |
1662 | ||
cb32438b | 1663 | if (urb->actual_length > 0 && edge_port->lsr_event) { |
1da177e4 | 1664 | edge_port->lsr_event = 0; |
67e6da70 GKH |
1665 | dev_dbg(dev, "%s ===== Port %u LSR Status = %02x, Data = %02x ======\n", |
1666 | __func__, port_number, edge_port->lsr_mask, *data); | |
2742fd88 | 1667 | handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data); |
1da177e4 LT |
1668 | /* Adjust buffer length/pointer */ |
1669 | --urb->actual_length; | |
1670 | ++data; | |
1671 | } | |
1672 | ||
2e124b4a | 1673 | if (urb->actual_length) { |
59d33f2f | 1674 | usb_serial_debug_data(dev, __func__, urb->actual_length, data); |
2742fd88 | 1675 | if (edge_port->close_pending) |
67e6da70 | 1676 | dev_dbg(dev, "%s - close pending, dropping data on the floor\n", |
2742fd88 AC |
1677 | __func__); |
1678 | else | |
2e124b4a | 1679 | edge_tty_recv(edge_port->port, data, |
05c7cd39 | 1680 | urb->actual_length); |
cf9a9d66 | 1681 | edge_port->port->icount.rx += urb->actual_length; |
1da177e4 LT |
1682 | } |
1683 | ||
1684 | exit: | |
1685 | /* continue read unless stopped */ | |
1686 | spin_lock(&edge_port->ep_lock); | |
5833041f | 1687 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) |
ee337c21 | 1688 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
5833041f | 1689 | else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) |
1da177e4 | 1690 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED; |
5833041f | 1691 | |
1da177e4 | 1692 | spin_unlock(&edge_port->ep_lock); |
ee337c21 | 1693 | if (retval) |
67e6da70 | 1694 | dev_err(dev, "%s - usb_submit_urb failed with result %d\n", __func__, retval); |
1da177e4 LT |
1695 | } |
1696 | ||
2e124b4a JS |
1697 | static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data, |
1698 | int length) | |
1da177e4 | 1699 | { |
2742fd88 | 1700 | int queued; |
1da177e4 | 1701 | |
05c7cd39 | 1702 | queued = tty_insert_flip_string(&port->port, data, length); |
2742fd88 | 1703 | if (queued < length) |
05c7cd39 | 1704 | dev_err(&port->dev, "%s - dropping data, %d bytes lost\n", |
2742fd88 | 1705 | __func__, length - queued); |
2e124b4a | 1706 | tty_flip_buffer_push(&port->port); |
1da177e4 LT |
1707 | } |
1708 | ||
2742fd88 | 1709 | static void edge_bulk_out_callback(struct urb *urb) |
1da177e4 | 1710 | { |
cdc97792 | 1711 | struct usb_serial_port *port = urb->context; |
1da177e4 | 1712 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
ee337c21 | 1713 | int status = urb->status; |
4a90f09b | 1714 | struct tty_struct *tty; |
1da177e4 | 1715 | |
1da177e4 LT |
1716 | edge_port->ep_write_urb_in_use = 0; |
1717 | ||
ee337c21 | 1718 | switch (status) { |
1da177e4 LT |
1719 | case 0: |
1720 | /* success */ | |
1721 | break; | |
1722 | case -ECONNRESET: | |
1723 | case -ENOENT: | |
1724 | case -ESHUTDOWN: | |
1725 | /* this urb is terminated, clean up */ | |
67e6da70 | 1726 | dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", |
441b62c1 | 1727 | __func__, status); |
1da177e4 LT |
1728 | return; |
1729 | default: | |
22a416c4 | 1730 | dev_err_console(port, "%s - nonzero write bulk status " |
441b62c1 | 1731 | "received: %d\n", __func__, status); |
1da177e4 LT |
1732 | } |
1733 | ||
1734 | /* send any buffered data */ | |
4a90f09b | 1735 | tty = tty_port_tty_get(&port->port); |
ae3759c2 | 1736 | edge_send(port, tty); |
4a90f09b | 1737 | tty_kref_put(tty); |
1da177e4 LT |
1738 | } |
1739 | ||
a509a7e4 | 1740 | static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) |
1da177e4 LT |
1741 | { |
1742 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
1743 | struct edgeport_serial *edge_serial; | |
1744 | struct usb_device *dev; | |
1745 | struct urb *urb; | |
1746 | int port_number; | |
1747 | int status; | |
1748 | u16 open_settings; | |
1749 | u8 transaction_timeout; | |
1750 | ||
1da177e4 LT |
1751 | if (edge_port == NULL) |
1752 | return -ENODEV; | |
1753 | ||
1da177e4 LT |
1754 | port_number = port->number - port->serial->minor; |
1755 | switch (port_number) { | |
2742fd88 AC |
1756 | case 0: |
1757 | edge_port->uart_base = UMPMEM_BASE_UART1; | |
1758 | edge_port->dma_address = UMPD_OEDB1_ADDRESS; | |
1759 | break; | |
1760 | case 1: | |
1761 | edge_port->uart_base = UMPMEM_BASE_UART2; | |
1762 | edge_port->dma_address = UMPD_OEDB2_ADDRESS; | |
1763 | break; | |
1764 | default: | |
1765 | dev_err(&port->dev, "Unknown port number!!!\n"); | |
1766 | return -ENODEV; | |
1da177e4 LT |
1767 | } |
1768 | ||
67e6da70 GKH |
1769 | dev_dbg(&port->dev, "%s - port_number = %d, uart_base = %04x, dma_address = %04x\n", |
1770 | __func__, port_number, edge_port->uart_base, edge_port->dma_address); | |
1da177e4 LT |
1771 | |
1772 | dev = port->serial->dev; | |
1773 | ||
1da177e4 | 1774 | /* turn off loopback */ |
2742fd88 | 1775 | status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0); |
1da177e4 | 1776 | if (status) { |
2742fd88 AC |
1777 | dev_err(&port->dev, |
1778 | "%s - cannot send clear loopback command, %d\n", | |
441b62c1 | 1779 | __func__, status); |
1da177e4 LT |
1780 | return status; |
1781 | } | |
2742fd88 | 1782 | |
1da177e4 | 1783 | /* set up the port settings */ |
95da310e | 1784 | if (tty) |
adc8d746 | 1785 | edge_set_termios(tty, port, &tty->termios); |
1da177e4 LT |
1786 | |
1787 | /* open up the port */ | |
1788 | ||
1789 | /* milliseconds to timeout for DMA transfer */ | |
1790 | transaction_timeout = 2; | |
1791 | ||
2742fd88 AC |
1792 | edge_port->ump_read_timeout = |
1793 | max(20, ((transaction_timeout * 3) / 2)); | |
1da177e4 | 1794 | |
2742fd88 AC |
1795 | /* milliseconds to timeout for DMA transfer */ |
1796 | open_settings = (u8)(UMP_DMA_MODE_CONTINOUS | | |
1797 | UMP_PIPE_TRANS_TIMEOUT_ENA | | |
1da177e4 LT |
1798 | (transaction_timeout << 2)); |
1799 | ||
67e6da70 | 1800 | dev_dbg(&port->dev, "%s - Sending UMPC_OPEN_PORT\n", __func__); |
1da177e4 LT |
1801 | |
1802 | /* Tell TI to open and start the port */ | |
2742fd88 AC |
1803 | status = send_cmd(dev, UMPC_OPEN_PORT, |
1804 | (u8)(UMPM_UART1_PORT + port_number), open_settings, NULL, 0); | |
1da177e4 | 1805 | if (status) { |
2742fd88 AC |
1806 | dev_err(&port->dev, "%s - cannot send open command, %d\n", |
1807 | __func__, status); | |
1da177e4 LT |
1808 | return status; |
1809 | } | |
1810 | ||
1811 | /* Start the DMA? */ | |
2742fd88 AC |
1812 | status = send_cmd(dev, UMPC_START_PORT, |
1813 | (u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0); | |
1da177e4 | 1814 | if (status) { |
2742fd88 AC |
1815 | dev_err(&port->dev, "%s - cannot send start DMA command, %d\n", |
1816 | __func__, status); | |
1da177e4 LT |
1817 | return status; |
1818 | } | |
1819 | ||
1820 | /* Clear TX and RX buffers in UMP */ | |
2742fd88 | 1821 | status = purge_port(port, UMP_PORT_DIR_OUT | UMP_PORT_DIR_IN); |
1da177e4 | 1822 | if (status) { |
2742fd88 AC |
1823 | dev_err(&port->dev, |
1824 | "%s - cannot send clear buffers command, %d\n", | |
1825 | __func__, status); | |
1da177e4 LT |
1826 | return status; |
1827 | } | |
1828 | ||
1829 | /* Read Initial MSR */ | |
2742fd88 AC |
1830 | status = ti_vread_sync(dev, UMPC_READ_MSR, 0, |
1831 | (__u16)(UMPM_UART1_PORT + port_number), | |
1832 | &edge_port->shadow_msr, 1); | |
1da177e4 | 1833 | if (status) { |
2742fd88 AC |
1834 | dev_err(&port->dev, "%s - cannot send read MSR command, %d\n", |
1835 | __func__, status); | |
1da177e4 LT |
1836 | return status; |
1837 | } | |
1838 | ||
67e6da70 | 1839 | dev_dbg(&port->dev, "ShadowMSR 0x%X\n", edge_port->shadow_msr); |
2742fd88 | 1840 | |
1da177e4 LT |
1841 | /* Set Initial MCR */ |
1842 | edge_port->shadow_mcr = MCR_RTS | MCR_DTR; | |
67e6da70 | 1843 | dev_dbg(&port->dev, "ShadowMCR 0x%X\n", edge_port->shadow_mcr); |
1da177e4 LT |
1844 | |
1845 | edge_serial = edge_port->edge_serial; | |
241ca64f | 1846 | if (mutex_lock_interruptible(&edge_serial->es_lock)) |
1da177e4 LT |
1847 | return -ERESTARTSYS; |
1848 | if (edge_serial->num_ports_open == 0) { | |
2742fd88 | 1849 | /* we are the first port to open, post the interrupt urb */ |
1da177e4 LT |
1850 | urb = edge_serial->serial->port[0]->interrupt_in_urb; |
1851 | if (!urb) { | |
2742fd88 AC |
1852 | dev_err(&port->dev, |
1853 | "%s - no interrupt urb present, exiting\n", | |
1854 | __func__); | |
1da177e4 | 1855 | status = -EINVAL; |
241ca64f | 1856 | goto release_es_lock; |
1da177e4 | 1857 | } |
1da177e4 | 1858 | urb->context = edge_serial; |
2742fd88 | 1859 | status = usb_submit_urb(urb, GFP_KERNEL); |
1da177e4 | 1860 | if (status) { |
2742fd88 AC |
1861 | dev_err(&port->dev, |
1862 | "%s - usb_submit_urb failed with value %d\n", | |
1863 | __func__, status); | |
241ca64f | 1864 | goto release_es_lock; |
1da177e4 LT |
1865 | } |
1866 | } | |
1867 | ||
1868 | /* | |
1869 | * reset the data toggle on the bulk endpoints to work around bug in | |
1870 | * host controllers where things get out of sync some times | |
1871 | */ | |
2742fd88 AC |
1872 | usb_clear_halt(dev, port->write_urb->pipe); |
1873 | usb_clear_halt(dev, port->read_urb->pipe); | |
1da177e4 LT |
1874 | |
1875 | /* start up our bulk read urb */ | |
1876 | urb = port->read_urb; | |
1877 | if (!urb) { | |
2742fd88 AC |
1878 | dev_err(&port->dev, "%s - no read urb present, exiting\n", |
1879 | __func__); | |
1da177e4 LT |
1880 | status = -EINVAL; |
1881 | goto unlink_int_urb; | |
1882 | } | |
1883 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; | |
1da177e4 | 1884 | urb->context = edge_port; |
2742fd88 | 1885 | status = usb_submit_urb(urb, GFP_KERNEL); |
1da177e4 | 1886 | if (status) { |
2742fd88 AC |
1887 | dev_err(&port->dev, |
1888 | "%s - read bulk usb_submit_urb failed with value %d\n", | |
1889 | __func__, status); | |
1da177e4 LT |
1890 | goto unlink_int_urb; |
1891 | } | |
1892 | ||
1893 | ++edge_serial->num_ports_open; | |
1894 | ||
fcdb6a21 JH |
1895 | port->port.drain_delay = 1; |
1896 | ||
241ca64f | 1897 | goto release_es_lock; |
1da177e4 LT |
1898 | |
1899 | unlink_int_urb: | |
1900 | if (edge_port->edge_serial->num_ports_open == 0) | |
1901 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
241ca64f MK |
1902 | release_es_lock: |
1903 | mutex_unlock(&edge_serial->es_lock); | |
1da177e4 LT |
1904 | return status; |
1905 | } | |
1906 | ||
335f8514 | 1907 | static void edge_close(struct usb_serial_port *port) |
1da177e4 LT |
1908 | { |
1909 | struct edgeport_serial *edge_serial; | |
1910 | struct edgeport_port *edge_port; | |
af581059 | 1911 | struct usb_serial *serial = port->serial; |
77de2518 | 1912 | unsigned long flags; |
1da177e4 | 1913 | int port_number; |
1da177e4 | 1914 | |
1da177e4 LT |
1915 | edge_serial = usb_get_serial_data(port->serial); |
1916 | edge_port = usb_get_serial_port_data(port); | |
2742fd88 | 1917 | if (edge_serial == NULL || edge_port == NULL) |
1da177e4 | 1918 | return; |
2742fd88 AC |
1919 | |
1920 | /* The bulkreadcompletion routine will check | |
1da177e4 LT |
1921 | * this flag and dump add read data */ |
1922 | edge_port->close_pending = 1; | |
1923 | ||
1da177e4 LT |
1924 | usb_kill_urb(port->read_urb); |
1925 | usb_kill_urb(port->write_urb); | |
1926 | edge_port->ep_write_urb_in_use = 0; | |
77de2518 JH |
1927 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
1928 | kfifo_reset_out(&edge_port->write_fifo); | |
1929 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
1da177e4 | 1930 | |
67e6da70 | 1931 | dev_dbg(&port->dev, "%s - send umpc_close_port\n", __func__); |
1da177e4 | 1932 | port_number = port->number - port->serial->minor; |
bca87e9e JH |
1933 | send_cmd(serial->dev, UMPC_CLOSE_PORT, |
1934 | (__u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0); | |
af581059 | 1935 | |
241ca64f | 1936 | mutex_lock(&edge_serial->es_lock); |
1da177e4 LT |
1937 | --edge_port->edge_serial->num_ports_open; |
1938 | if (edge_port->edge_serial->num_ports_open <= 0) { | |
1939 | /* last port is now closed, let's shut down our interrupt urb */ | |
1940 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
1941 | edge_port->edge_serial->num_ports_open = 0; | |
1942 | } | |
241ca64f | 1943 | mutex_unlock(&edge_serial->es_lock); |
1da177e4 | 1944 | edge_port->close_pending = 0; |
1da177e4 LT |
1945 | } |
1946 | ||
95da310e AC |
1947 | static int edge_write(struct tty_struct *tty, struct usb_serial_port *port, |
1948 | const unsigned char *data, int count) | |
1da177e4 LT |
1949 | { |
1950 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
1da177e4 | 1951 | |
1da177e4 | 1952 | if (count == 0) { |
67e6da70 | 1953 | dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__); |
1da177e4 LT |
1954 | return 0; |
1955 | } | |
1956 | ||
1957 | if (edge_port == NULL) | |
1958 | return -ENODEV; | |
1959 | if (edge_port->close_pending == 1) | |
1960 | return -ENODEV; | |
1961 | ||
d733cec1 JH |
1962 | count = kfifo_in_locked(&edge_port->write_fifo, data, count, |
1963 | &edge_port->ep_lock); | |
ae3759c2 | 1964 | edge_send(port, tty); |
1da177e4 LT |
1965 | |
1966 | return count; | |
1967 | } | |
1968 | ||
ae3759c2 | 1969 | static void edge_send(struct usb_serial_port *port, struct tty_struct *tty) |
1da177e4 LT |
1970 | { |
1971 | int count, result; | |
1972 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
1da177e4 LT |
1973 | unsigned long flags; |
1974 | ||
1da177e4 LT |
1975 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
1976 | ||
1977 | if (edge_port->ep_write_urb_in_use) { | |
1978 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
1979 | return; | |
1980 | } | |
1981 | ||
d733cec1 | 1982 | count = kfifo_out(&edge_port->write_fifo, |
1da177e4 LT |
1983 | port->write_urb->transfer_buffer, |
1984 | port->bulk_out_size); | |
1985 | ||
1986 | if (count == 0) { | |
1987 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
1988 | return; | |
1989 | } | |
1990 | ||
1991 | edge_port->ep_write_urb_in_use = 1; | |
1992 | ||
1993 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
1994 | ||
59d33f2f | 1995 | usb_serial_debug_data(&port->dev, __func__, count, port->write_urb->transfer_buffer); |
1da177e4 LT |
1996 | |
1997 | /* set up our urb */ | |
fd11961a | 1998 | port->write_urb->transfer_buffer_length = count; |
1da177e4 LT |
1999 | |
2000 | /* send the data out the bulk port */ | |
2001 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); | |
2002 | if (result) { | |
22a416c4 | 2003 | dev_err_console(port, |
2742fd88 AC |
2004 | "%s - failed submitting write urb, error %d\n", |
2005 | __func__, result); | |
1da177e4 | 2006 | edge_port->ep_write_urb_in_use = 0; |
2742fd88 AC |
2007 | /* TODO: reschedule edge_send */ |
2008 | } else | |
cf9a9d66 | 2009 | edge_port->port->icount.tx += count; |
1da177e4 LT |
2010 | |
2011 | /* wakeup any process waiting for writes to complete */ | |
2012 | /* there is now more room in the buffer for new writes */ | |
2742fd88 | 2013 | if (tty) |
1da177e4 | 2014 | tty_wakeup(tty); |
1da177e4 LT |
2015 | } |
2016 | ||
95da310e | 2017 | static int edge_write_room(struct tty_struct *tty) |
1da177e4 | 2018 | { |
95da310e | 2019 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
2020 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
2021 | int room = 0; | |
2022 | unsigned long flags; | |
2023 | ||
1da177e4 | 2024 | if (edge_port == NULL) |
2742fd88 | 2025 | return 0; |
1da177e4 | 2026 | if (edge_port->close_pending == 1) |
2742fd88 | 2027 | return 0; |
1da177e4 LT |
2028 | |
2029 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
d733cec1 | 2030 | room = kfifo_avail(&edge_port->write_fifo); |
1da177e4 LT |
2031 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
2032 | ||
67e6da70 | 2033 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); |
1da177e4 LT |
2034 | return room; |
2035 | } | |
2036 | ||
95da310e | 2037 | static int edge_chars_in_buffer(struct tty_struct *tty) |
1da177e4 | 2038 | { |
95da310e | 2039 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
2040 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
2041 | int chars = 0; | |
2042 | unsigned long flags; | |
1da177e4 | 2043 | if (edge_port == NULL) |
2742fd88 | 2044 | return 0; |
1da177e4 LT |
2045 | |
2046 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
d733cec1 | 2047 | chars = kfifo_len(&edge_port->write_fifo); |
1da177e4 LT |
2048 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
2049 | ||
67e6da70 | 2050 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); |
1da177e4 LT |
2051 | return chars; |
2052 | } | |
2053 | ||
b16634ad JH |
2054 | static bool edge_tx_empty(struct usb_serial_port *port) |
2055 | { | |
2056 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2057 | int ret; | |
2058 | ||
2059 | ret = tx_active(edge_port); | |
2060 | if (ret > 0) | |
2061 | return false; | |
2062 | ||
2063 | return true; | |
2064 | } | |
2065 | ||
95da310e | 2066 | static void edge_throttle(struct tty_struct *tty) |
1da177e4 | 2067 | { |
95da310e | 2068 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 2069 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
1da177e4 LT |
2070 | int status; |
2071 | ||
1da177e4 LT |
2072 | if (edge_port == NULL) |
2073 | return; | |
2074 | ||
1da177e4 LT |
2075 | /* if we are implementing XON/XOFF, send the stop character */ |
2076 | if (I_IXOFF(tty)) { | |
2077 | unsigned char stop_char = STOP_CHAR(tty); | |
95da310e AC |
2078 | status = edge_write(tty, port, &stop_char, 1); |
2079 | if (status <= 0) { | |
2080 | dev_err(&port->dev, "%s - failed to write stop character, %d\n", __func__, status); | |
2081 | } | |
1da177e4 LT |
2082 | } |
2083 | ||
2084 | /* if we are implementing RTS/CTS, stop reads */ | |
2085 | /* and the Edgeport will clear the RTS line */ | |
2086 | if (C_CRTSCTS(tty)) | |
2087 | stop_read(edge_port); | |
2088 | ||
2089 | } | |
2090 | ||
95da310e | 2091 | static void edge_unthrottle(struct tty_struct *tty) |
1da177e4 | 2092 | { |
95da310e | 2093 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 2094 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
1da177e4 LT |
2095 | int status; |
2096 | ||
1da177e4 LT |
2097 | if (edge_port == NULL) |
2098 | return; | |
2099 | ||
1da177e4 LT |
2100 | /* if we are implementing XON/XOFF, send the start character */ |
2101 | if (I_IXOFF(tty)) { | |
2102 | unsigned char start_char = START_CHAR(tty); | |
95da310e AC |
2103 | status = edge_write(tty, port, &start_char, 1); |
2104 | if (status <= 0) { | |
2105 | dev_err(&port->dev, "%s - failed to write start character, %d\n", __func__, status); | |
2106 | } | |
1da177e4 | 2107 | } |
1da177e4 LT |
2108 | /* if we are implementing RTS/CTS, restart reads */ |
2109 | /* are the Edgeport will assert the RTS line */ | |
2110 | if (C_CRTSCTS(tty)) { | |
2111 | status = restart_read(edge_port); | |
2112 | if (status) | |
2742fd88 AC |
2113 | dev_err(&port->dev, |
2114 | "%s - read bulk usb_submit_urb failed: %d\n", | |
2115 | __func__, status); | |
1da177e4 LT |
2116 | } |
2117 | ||
2118 | } | |
2119 | ||
2120 | static void stop_read(struct edgeport_port *edge_port) | |
2121 | { | |
2122 | unsigned long flags; | |
2123 | ||
2124 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2125 | ||
2126 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) | |
2127 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING; | |
2128 | edge_port->shadow_mcr &= ~MCR_RTS; | |
2129 | ||
2130 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2131 | } | |
2132 | ||
2133 | static int restart_read(struct edgeport_port *edge_port) | |
2134 | { | |
2135 | struct urb *urb; | |
2136 | int status = 0; | |
2137 | unsigned long flags; | |
2138 | ||
2139 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2140 | ||
2141 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) { | |
2142 | urb = edge_port->port->read_urb; | |
efdff608 | 2143 | status = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
2144 | } |
2145 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; | |
2146 | edge_port->shadow_mcr |= MCR_RTS; | |
2147 | ||
2148 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2149 | ||
2150 | return status; | |
2151 | } | |
2152 | ||
95da310e AC |
2153 | static void change_port_settings(struct tty_struct *tty, |
2154 | struct edgeport_port *edge_port, struct ktermios *old_termios) | |
1da177e4 | 2155 | { |
67e6da70 | 2156 | struct device *dev = &edge_port->port->dev; |
1da177e4 | 2157 | struct ump_uart_config *config; |
1da177e4 LT |
2158 | int baud; |
2159 | unsigned cflag; | |
2160 | int status; | |
2742fd88 AC |
2161 | int port_number = edge_port->port->number - |
2162 | edge_port->port->serial->minor; | |
1da177e4 | 2163 | |
67e6da70 | 2164 | dev_dbg(dev, "%s - port %d\n", __func__, edge_port->port->number); |
1da177e4 | 2165 | |
95da310e | 2166 | config = kmalloc (sizeof (*config), GFP_KERNEL); |
1da177e4 | 2167 | if (!config) { |
adc8d746 | 2168 | tty->termios = *old_termios; |
67e6da70 | 2169 | dev_err(dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
2170 | return; |
2171 | } | |
2172 | ||
adc8d746 | 2173 | cflag = tty->termios.c_cflag; |
1da177e4 LT |
2174 | |
2175 | config->wFlags = 0; | |
2176 | ||
2177 | /* These flags must be set */ | |
2178 | config->wFlags |= UMP_MASK_UART_FLAGS_RECEIVE_MS_INT; | |
2179 | config->wFlags |= UMP_MASK_UART_FLAGS_AUTO_START_ON_ERR; | |
2180 | config->bUartMode = (__u8)(edge_port->bUartMode); | |
2181 | ||
2182 | switch (cflag & CSIZE) { | |
2742fd88 AC |
2183 | case CS5: |
2184 | config->bDataBits = UMP_UART_CHAR5BITS; | |
67e6da70 | 2185 | dev_dbg(dev, "%s - data bits = 5\n", __func__); |
2742fd88 AC |
2186 | break; |
2187 | case CS6: | |
2188 | config->bDataBits = UMP_UART_CHAR6BITS; | |
67e6da70 | 2189 | dev_dbg(dev, "%s - data bits = 6\n", __func__); |
2742fd88 AC |
2190 | break; |
2191 | case CS7: | |
2192 | config->bDataBits = UMP_UART_CHAR7BITS; | |
67e6da70 | 2193 | dev_dbg(dev, "%s - data bits = 7\n", __func__); |
2742fd88 AC |
2194 | break; |
2195 | default: | |
2196 | case CS8: | |
2197 | config->bDataBits = UMP_UART_CHAR8BITS; | |
67e6da70 | 2198 | dev_dbg(dev, "%s - data bits = 8\n", __func__); |
1da177e4 LT |
2199 | break; |
2200 | } | |
2201 | ||
2202 | if (cflag & PARENB) { | |
2203 | if (cflag & PARODD) { | |
2204 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; | |
2205 | config->bParity = UMP_UART_ODDPARITY; | |
67e6da70 | 2206 | dev_dbg(dev, "%s - parity = odd\n", __func__); |
1da177e4 LT |
2207 | } else { |
2208 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; | |
2209 | config->bParity = UMP_UART_EVENPARITY; | |
67e6da70 | 2210 | dev_dbg(dev, "%s - parity = even\n", __func__); |
1da177e4 LT |
2211 | } |
2212 | } else { | |
2742fd88 | 2213 | config->bParity = UMP_UART_NOPARITY; |
67e6da70 | 2214 | dev_dbg(dev, "%s - parity = none\n", __func__); |
1da177e4 LT |
2215 | } |
2216 | ||
2217 | if (cflag & CSTOPB) { | |
2218 | config->bStopBits = UMP_UART_STOPBIT2; | |
67e6da70 | 2219 | dev_dbg(dev, "%s - stop bits = 2\n", __func__); |
1da177e4 LT |
2220 | } else { |
2221 | config->bStopBits = UMP_UART_STOPBIT1; | |
67e6da70 | 2222 | dev_dbg(dev, "%s - stop bits = 1\n", __func__); |
1da177e4 LT |
2223 | } |
2224 | ||
2225 | /* figure out the flow control settings */ | |
2226 | if (cflag & CRTSCTS) { | |
2227 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X_CTS_FLOW; | |
2228 | config->wFlags |= UMP_MASK_UART_FLAGS_RTS_FLOW; | |
67e6da70 | 2229 | dev_dbg(dev, "%s - RTS/CTS is enabled\n", __func__); |
1da177e4 | 2230 | } else { |
67e6da70 | 2231 | dev_dbg(dev, "%s - RTS/CTS is disabled\n", __func__); |
1da177e4 LT |
2232 | tty->hw_stopped = 0; |
2233 | restart_read(edge_port); | |
2234 | } | |
2235 | ||
2742fd88 AC |
2236 | /* if we are implementing XON/XOFF, set the start and stop |
2237 | character in the device */ | |
2238 | config->cXon = START_CHAR(tty); | |
2239 | config->cXoff = STOP_CHAR(tty); | |
1da177e4 | 2240 | |
2742fd88 AC |
2241 | /* if we are implementing INBOUND XON/XOFF */ |
2242 | if (I_IXOFF(tty)) { | |
2243 | config->wFlags |= UMP_MASK_UART_FLAGS_IN_X; | |
67e6da70 GKH |
2244 | dev_dbg(dev, "%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n", |
2245 | __func__, config->cXon, config->cXoff); | |
2742fd88 | 2246 | } else |
67e6da70 | 2247 | dev_dbg(dev, "%s - INBOUND XON/XOFF is disabled\n", __func__); |
1da177e4 | 2248 | |
2742fd88 AC |
2249 | /* if we are implementing OUTBOUND XON/XOFF */ |
2250 | if (I_IXON(tty)) { | |
2251 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X; | |
67e6da70 GKH |
2252 | dev_dbg(dev, "%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n", |
2253 | __func__, config->cXon, config->cXoff); | |
2742fd88 | 2254 | } else |
67e6da70 | 2255 | dev_dbg(dev, "%s - OUTBOUND XON/XOFF is disabled\n", __func__); |
1da177e4 | 2256 | |
adc8d746 | 2257 | tty->termios.c_cflag &= ~CMSPAR; |
d5f5bcd4 | 2258 | |
1da177e4 LT |
2259 | /* Round the baud rate */ |
2260 | baud = tty_get_baud_rate(tty); | |
2261 | if (!baud) { | |
2262 | /* pick a default, any default... */ | |
2263 | baud = 9600; | |
d5f5bcd4 AC |
2264 | } else |
2265 | tty_encode_baud_rate(tty, baud, baud); | |
2266 | ||
1da177e4 LT |
2267 | edge_port->baud_rate = baud; |
2268 | config->wBaudRate = (__u16)((461550L + baud/2) / baud); | |
2269 | ||
d5f5bcd4 AC |
2270 | /* FIXME: Recompute actual baud from divisor here */ |
2271 | ||
67e6da70 | 2272 | dev_dbg(dev, "%s - baud rate = %d, wBaudRate = %d\n", __func__, baud, config->wBaudRate); |
1da177e4 | 2273 | |
67e6da70 GKH |
2274 | dev_dbg(dev, "wBaudRate: %d\n", (int)(461550L / config->wBaudRate)); |
2275 | dev_dbg(dev, "wFlags: 0x%x\n", config->wFlags); | |
2276 | dev_dbg(dev, "bDataBits: %d\n", config->bDataBits); | |
2277 | dev_dbg(dev, "bParity: %d\n", config->bParity); | |
2278 | dev_dbg(dev, "bStopBits: %d\n", config->bStopBits); | |
2279 | dev_dbg(dev, "cXon: %d\n", config->cXon); | |
2280 | dev_dbg(dev, "cXoff: %d\n", config->cXoff); | |
2281 | dev_dbg(dev, "bUartMode: %d\n", config->bUartMode); | |
1da177e4 LT |
2282 | |
2283 | /* move the word values into big endian mode */ | |
2742fd88 AC |
2284 | cpu_to_be16s(&config->wFlags); |
2285 | cpu_to_be16s(&config->wBaudRate); | |
1da177e4 | 2286 | |
2742fd88 | 2287 | status = send_cmd(edge_port->port->serial->dev, UMPC_SET_CONFIG, |
1da177e4 | 2288 | (__u8)(UMPM_UART1_PORT + port_number), |
2742fd88 AC |
2289 | 0, (__u8 *)config, sizeof(*config)); |
2290 | if (status) | |
67e6da70 GKH |
2291 | dev_dbg(dev, "%s - error %d when trying to write config to device\n", |
2292 | __func__, status); | |
2742fd88 | 2293 | kfree(config); |
1da177e4 LT |
2294 | } |
2295 | ||
2e0ddd62 | 2296 | static void edge_set_termios(struct tty_struct *tty, |
95da310e | 2297 | struct usb_serial_port *port, struct ktermios *old_termios) |
1da177e4 LT |
2298 | { |
2299 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
95da310e AC |
2300 | unsigned int cflag; |
2301 | ||
adc8d746 | 2302 | cflag = tty->termios.c_cflag; |
1da177e4 | 2303 | |
67e6da70 | 2304 | dev_dbg(&port->dev, "%s - clfag %08x iflag %08x\n", __func__, |
d9a80746 | 2305 | tty->termios.c_cflag, tty->termios.c_iflag); |
67e6da70 GKH |
2306 | dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__, |
2307 | old_termios->c_cflag, old_termios->c_iflag); | |
2308 | dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number); | |
1da177e4 LT |
2309 | |
2310 | if (edge_port == NULL) | |
2311 | return; | |
1da177e4 | 2312 | /* change the port settings to the new ones specified */ |
95da310e | 2313 | change_port_settings(tty, edge_port, old_termios); |
1da177e4 LT |
2314 | } |
2315 | ||
20b9d177 | 2316 | static int edge_tiocmset(struct tty_struct *tty, |
2742fd88 | 2317 | unsigned int set, unsigned int clear) |
1da177e4 | 2318 | { |
95da310e | 2319 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
2320 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
2321 | unsigned int mcr; | |
3d71fe0b | 2322 | unsigned long flags; |
1da177e4 | 2323 | |
3d71fe0b | 2324 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
1da177e4 LT |
2325 | mcr = edge_port->shadow_mcr; |
2326 | if (set & TIOCM_RTS) | |
2327 | mcr |= MCR_RTS; | |
2328 | if (set & TIOCM_DTR) | |
2329 | mcr |= MCR_DTR; | |
2330 | if (set & TIOCM_LOOP) | |
2331 | mcr |= MCR_LOOPBACK; | |
2332 | ||
2333 | if (clear & TIOCM_RTS) | |
2334 | mcr &= ~MCR_RTS; | |
2335 | if (clear & TIOCM_DTR) | |
2336 | mcr &= ~MCR_DTR; | |
2337 | if (clear & TIOCM_LOOP) | |
2338 | mcr &= ~MCR_LOOPBACK; | |
2339 | ||
2340 | edge_port->shadow_mcr = mcr; | |
3d71fe0b | 2341 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
1da177e4 | 2342 | |
2742fd88 | 2343 | restore_mcr(edge_port, mcr); |
1da177e4 LT |
2344 | return 0; |
2345 | } | |
2346 | ||
60b33c13 | 2347 | static int edge_tiocmget(struct tty_struct *tty) |
1da177e4 | 2348 | { |
95da310e | 2349 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
2350 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
2351 | unsigned int result = 0; | |
2352 | unsigned int msr; | |
2353 | unsigned int mcr; | |
3d71fe0b | 2354 | unsigned long flags; |
1da177e4 | 2355 | |
3d71fe0b AC |
2356 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
2357 | ||
1da177e4 LT |
2358 | msr = edge_port->shadow_msr; |
2359 | mcr = edge_port->shadow_mcr; | |
2360 | result = ((mcr & MCR_DTR) ? TIOCM_DTR: 0) /* 0x002 */ | |
2361 | | ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */ | |
2362 | | ((msr & EDGEPORT_MSR_CTS) ? TIOCM_CTS: 0) /* 0x020 */ | |
2363 | | ((msr & EDGEPORT_MSR_CD) ? TIOCM_CAR: 0) /* 0x040 */ | |
2364 | | ((msr & EDGEPORT_MSR_RI) ? TIOCM_RI: 0) /* 0x080 */ | |
2365 | | ((msr & EDGEPORT_MSR_DSR) ? TIOCM_DSR: 0); /* 0x100 */ | |
2366 | ||
2367 | ||
67e6da70 | 2368 | dev_dbg(&port->dev, "%s -- %x\n", __func__, result); |
3d71fe0b | 2369 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
1da177e4 LT |
2370 | |
2371 | return result; | |
2372 | } | |
2373 | ||
2742fd88 AC |
2374 | static int get_serial_info(struct edgeport_port *edge_port, |
2375 | struct serial_struct __user *retinfo) | |
1da177e4 LT |
2376 | { |
2377 | struct serial_struct tmp; | |
f40d7815 | 2378 | unsigned cwait; |
1da177e4 LT |
2379 | |
2380 | if (!retinfo) | |
2381 | return -EFAULT; | |
2382 | ||
f40d7815 JH |
2383 | cwait = edge_port->port->port.closing_wait; |
2384 | if (cwait != ASYNC_CLOSING_WAIT_NONE) | |
b6fd35ee | 2385 | cwait = jiffies_to_msecs(cwait) / 10; |
f40d7815 | 2386 | |
1da177e4 LT |
2387 | memset(&tmp, 0, sizeof(tmp)); |
2388 | ||
2389 | tmp.type = PORT_16550A; | |
2390 | tmp.line = edge_port->port->serial->minor; | |
2391 | tmp.port = edge_port->port->number; | |
2392 | tmp.irq = 0; | |
2393 | tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; | |
2394 | tmp.xmit_fifo_size = edge_port->port->bulk_out_size; | |
2395 | tmp.baud_base = 9600; | |
2396 | tmp.close_delay = 5*HZ; | |
f40d7815 | 2397 | tmp.closing_wait = cwait; |
1da177e4 LT |
2398 | |
2399 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) | |
2400 | return -EFAULT; | |
2401 | return 0; | |
2402 | } | |
2403 | ||
00a0d0d6 | 2404 | static int edge_ioctl(struct tty_struct *tty, |
2742fd88 | 2405 | unsigned int cmd, unsigned long arg) |
1da177e4 | 2406 | { |
95da310e | 2407 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 2408 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
1da177e4 | 2409 | |
67e6da70 | 2410 | dev_dbg(&port->dev, "%s - port %d, cmd = 0x%x\n", __func__, port->number, cmd); |
1da177e4 LT |
2411 | |
2412 | switch (cmd) { | |
2742fd88 | 2413 | case TIOCGSERIAL: |
67e6da70 | 2414 | dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__); |
2742fd88 AC |
2415 | return get_serial_info(edge_port, |
2416 | (struct serial_struct __user *) arg); | |
1da177e4 | 2417 | } |
1da177e4 LT |
2418 | return -ENOIOCTLCMD; |
2419 | } | |
2420 | ||
95da310e | 2421 | static void edge_break(struct tty_struct *tty, int break_state) |
1da177e4 | 2422 | { |
95da310e | 2423 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
2424 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
2425 | int status; | |
2742fd88 | 2426 | int bv = 0; /* Off */ |
1da177e4 | 2427 | |
95da310e | 2428 | if (break_state == -1) |
2742fd88 AC |
2429 | bv = 1; /* On */ |
2430 | status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv); | |
2431 | if (status) | |
67e6da70 GKH |
2432 | dev_dbg(&port->dev, "%s - error %d sending break set/clear command.\n", |
2433 | __func__, status); | |
1da177e4 LT |
2434 | } |
2435 | ||
2742fd88 | 2436 | static int edge_startup(struct usb_serial *serial) |
1da177e4 LT |
2437 | { |
2438 | struct edgeport_serial *edge_serial; | |
1da177e4 | 2439 | int status; |
1da177e4 | 2440 | |
0d90b3d7 JH |
2441 | /* Make sure we have the required endpoints when in download mode. */ |
2442 | if (serial->interface->cur_altsetting->desc.bNumEndpoints > 1) { | |
2443 | if (serial->num_bulk_in < serial->num_ports || | |
2444 | serial->num_bulk_out < serial->num_ports) | |
2445 | return -ENODEV; | |
2446 | } | |
2447 | ||
1da177e4 | 2448 | /* create our private serial structure */ |
80b6ca48 | 2449 | edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL); |
1da177e4 | 2450 | if (edge_serial == NULL) { |
441b62c1 | 2451 | dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); |
1da177e4 LT |
2452 | return -ENOMEM; |
2453 | } | |
241ca64f | 2454 | mutex_init(&edge_serial->es_lock); |
1da177e4 LT |
2455 | edge_serial->serial = serial; |
2456 | usb_set_serial_data(serial, edge_serial); | |
2457 | ||
2742fd88 | 2458 | status = download_fw(edge_serial); |
7d04b5c6 | 2459 | if (status < 0) { |
2742fd88 | 2460 | kfree(edge_serial); |
1da177e4 LT |
2461 | return status; |
2462 | } | |
2463 | ||
7d04b5c6 JH |
2464 | if (status > 0) |
2465 | return 1; /* bind but do not register any ports */ | |
2466 | ||
1da177e4 | 2467 | return 0; |
1da177e4 LT |
2468 | } |
2469 | ||
f9c99bb8 | 2470 | static void edge_disconnect(struct usb_serial *serial) |
1da177e4 | 2471 | { |
f9c99bb8 AS |
2472 | } |
2473 | ||
2474 | static void edge_release(struct usb_serial *serial) | |
2475 | { | |
00361530 JH |
2476 | kfree(usb_get_serial_data(serial)); |
2477 | } | |
2478 | ||
2479 | static int edge_port_probe(struct usb_serial_port *port) | |
2480 | { | |
f9c99bb8 | 2481 | struct edgeport_port *edge_port; |
00361530 | 2482 | int ret; |
f9c99bb8 | 2483 | |
00361530 JH |
2484 | edge_port = kzalloc(sizeof(*edge_port), GFP_KERNEL); |
2485 | if (!edge_port) | |
2486 | return -ENOMEM; | |
2487 | ||
2488 | ret = kfifo_alloc(&edge_port->write_fifo, EDGE_OUT_BUF_SIZE, | |
2489 | GFP_KERNEL); | |
2490 | if (ret) { | |
2491 | kfree(edge_port); | |
2492 | return -ENOMEM; | |
2493 | } | |
2494 | ||
00361530 JH |
2495 | spin_lock_init(&edge_port->ep_lock); |
2496 | edge_port->port = port; | |
2497 | edge_port->edge_serial = usb_get_serial_data(port->serial); | |
2498 | edge_port->bUartMode = default_uart_mode; | |
2499 | ||
2500 | usb_set_serial_port_data(port, edge_port); | |
2501 | ||
5d8c61bc JH |
2502 | ret = edge_create_sysfs_attrs(port); |
2503 | if (ret) { | |
2504 | kfifo_free(&edge_port->write_fifo); | |
2505 | kfree(edge_port); | |
2506 | return ret; | |
2507 | } | |
2508 | ||
f40d7815 JH |
2509 | port->port.closing_wait = msecs_to_jiffies(closing_wait * 10); |
2510 | ||
00361530 | 2511 | return 0; |
1da177e4 LT |
2512 | } |
2513 | ||
00361530 JH |
2514 | static int edge_port_remove(struct usb_serial_port *port) |
2515 | { | |
2516 | struct edgeport_port *edge_port; | |
2517 | ||
2518 | edge_port = usb_get_serial_port_data(port); | |
00361530 JH |
2519 | edge_remove_sysfs_attrs(port); |
2520 | kfifo_free(&edge_port->write_fifo); | |
2521 | kfree(edge_port); | |
2522 | ||
2523 | return 0; | |
2524 | } | |
1da177e4 | 2525 | |
fc4cbd75 MP |
2526 | /* Sysfs Attributes */ |
2527 | ||
2528 | static ssize_t show_uart_mode(struct device *dev, | |
2529 | struct device_attribute *attr, char *buf) | |
2530 | { | |
2531 | struct usb_serial_port *port = to_usb_serial_port(dev); | |
2532 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2533 | ||
2534 | return sprintf(buf, "%d\n", edge_port->bUartMode); | |
2535 | } | |
2536 | ||
2537 | static ssize_t store_uart_mode(struct device *dev, | |
2538 | struct device_attribute *attr, const char *valbuf, size_t count) | |
2539 | { | |
2540 | struct usb_serial_port *port = to_usb_serial_port(dev); | |
2541 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2542 | unsigned int v = simple_strtoul(valbuf, NULL, 0); | |
2543 | ||
67e6da70 | 2544 | dev_dbg(dev, "%s: setting uart_mode = %d\n", __func__, v); |
fc4cbd75 MP |
2545 | |
2546 | if (v < 256) | |
2547 | edge_port->bUartMode = v; | |
2548 | else | |
441b62c1 | 2549 | dev_err(dev, "%s - uart_mode %d is invalid\n", __func__, v); |
fc4cbd75 MP |
2550 | |
2551 | return count; | |
2552 | } | |
2553 | ||
2742fd88 AC |
2554 | static DEVICE_ATTR(uart_mode, S_IWUSR | S_IRUGO, show_uart_mode, |
2555 | store_uart_mode); | |
fc4cbd75 MP |
2556 | |
2557 | static int edge_create_sysfs_attrs(struct usb_serial_port *port) | |
2558 | { | |
2559 | return device_create_file(&port->dev, &dev_attr_uart_mode); | |
2560 | } | |
2561 | ||
2562 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port) | |
2563 | { | |
2564 | device_remove_file(&port->dev, &dev_attr_uart_mode); | |
2565 | return 0; | |
2566 | } | |
2567 | ||
2568 | ||
ea65370d | 2569 | static struct usb_serial_driver edgeport_1port_device = { |
18fcac35 | 2570 | .driver = { |
269bda1c GKH |
2571 | .owner = THIS_MODULE, |
2572 | .name = "edgeport_ti_1", | |
18fcac35 | 2573 | }, |
269bda1c | 2574 | .description = "Edgeport TI 1 port adapter", |
1da177e4 | 2575 | .id_table = edgeport_1port_id_table, |
1da177e4 LT |
2576 | .num_ports = 1, |
2577 | .open = edge_open, | |
2578 | .close = edge_close, | |
2579 | .throttle = edge_throttle, | |
2580 | .unthrottle = edge_unthrottle, | |
2581 | .attach = edge_startup, | |
f9c99bb8 AS |
2582 | .disconnect = edge_disconnect, |
2583 | .release = edge_release, | |
00361530 JH |
2584 | .port_probe = edge_port_probe, |
2585 | .port_remove = edge_port_remove, | |
1da177e4 LT |
2586 | .ioctl = edge_ioctl, |
2587 | .set_termios = edge_set_termios, | |
2588 | .tiocmget = edge_tiocmget, | |
2589 | .tiocmset = edge_tiocmset, | |
48ee5801 | 2590 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
cf9a9d66 | 2591 | .get_icount = usb_serial_generic_get_icount, |
1da177e4 LT |
2592 | .write = edge_write, |
2593 | .write_room = edge_write_room, | |
2594 | .chars_in_buffer = edge_chars_in_buffer, | |
b16634ad | 2595 | .tx_empty = edge_tx_empty, |
1da177e4 LT |
2596 | .break_ctl = edge_break, |
2597 | .read_int_callback = edge_interrupt_callback, | |
2598 | .read_bulk_callback = edge_bulk_in_callback, | |
2599 | .write_bulk_callback = edge_bulk_out_callback, | |
2600 | }; | |
2601 | ||
ea65370d | 2602 | static struct usb_serial_driver edgeport_2port_device = { |
18fcac35 | 2603 | .driver = { |
269bda1c GKH |
2604 | .owner = THIS_MODULE, |
2605 | .name = "edgeport_ti_2", | |
18fcac35 | 2606 | }, |
269bda1c | 2607 | .description = "Edgeport TI 2 port adapter", |
1da177e4 | 2608 | .id_table = edgeport_2port_id_table, |
1da177e4 LT |
2609 | .num_ports = 2, |
2610 | .open = edge_open, | |
2611 | .close = edge_close, | |
2612 | .throttle = edge_throttle, | |
2613 | .unthrottle = edge_unthrottle, | |
2614 | .attach = edge_startup, | |
f9c99bb8 AS |
2615 | .disconnect = edge_disconnect, |
2616 | .release = edge_release, | |
00361530 JH |
2617 | .port_probe = edge_port_probe, |
2618 | .port_remove = edge_port_remove, | |
1da177e4 LT |
2619 | .ioctl = edge_ioctl, |
2620 | .set_termios = edge_set_termios, | |
2621 | .tiocmget = edge_tiocmget, | |
2622 | .tiocmset = edge_tiocmset, | |
48ee5801 | 2623 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
cf9a9d66 | 2624 | .get_icount = usb_serial_generic_get_icount, |
1da177e4 LT |
2625 | .write = edge_write, |
2626 | .write_room = edge_write_room, | |
2627 | .chars_in_buffer = edge_chars_in_buffer, | |
b16634ad | 2628 | .tx_empty = edge_tx_empty, |
1da177e4 LT |
2629 | .break_ctl = edge_break, |
2630 | .read_int_callback = edge_interrupt_callback, | |
2631 | .read_bulk_callback = edge_bulk_in_callback, | |
2632 | .write_bulk_callback = edge_bulk_out_callback, | |
2633 | }; | |
2634 | ||
7dbe2460 AS |
2635 | static struct usb_serial_driver * const serial_drivers[] = { |
2636 | &edgeport_1port_device, &edgeport_2port_device, NULL | |
2637 | }; | |
2638 | ||
68e24113 | 2639 | module_usb_serial_driver(serial_drivers, id_table_combined); |
1da177e4 | 2640 | |
1da177e4 LT |
2641 | MODULE_AUTHOR(DRIVER_AUTHOR); |
2642 | MODULE_DESCRIPTION(DRIVER_DESC); | |
2643 | MODULE_LICENSE("GPL"); | |
d12b219a | 2644 | MODULE_FIRMWARE("edgeport/down3.bin"); |
1da177e4 | 2645 | |
1da177e4 LT |
2646 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
2647 | MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs"); | |
2648 | ||
2649 | module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR); | |
2742fd88 AC |
2650 | MODULE_PARM_DESC(ignore_cpu_rev, |
2651 | "Ignore the cpu revision when connecting to a device"); | |
1da177e4 | 2652 | |
fc4cbd75 MP |
2653 | module_param(default_uart_mode, int, S_IRUGO | S_IWUSR); |
2654 | MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ..."); |