2 * Edgeport USB Serial Converter driver
4 * Copyright (C) 2000-2002 Inside Out Networks, All rights reserved.
5 * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
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.
12 * Supports the following devices:
13 * EP/1 EP/2 EP/4 EP/21 EP/22 EP/221 EP/42 EP/421 WATCHPORT
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>.
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>
30 #include <linux/mutex.h>
31 #include <linux/serial.h>
32 #include <linux/kfifo.h>
33 #include <linux/ioctl.h>
34 #include <linux/firmware.h>
35 #include <linux/uaccess.h>
36 #include <linux/usb.h>
37 #include <linux/usb/serial.h>
40 #include "io_usbvend.h"
43 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com> and David Iacovelli"
44 #define DRIVER_DESC "Edgeport USB Serial Driver"
46 #define EPROM_PAGE_SIZE 64
49 /* different hardware types */
50 #define HARDWARE_TYPE_930 0
51 #define HARDWARE_TYPE_TIUMP 1
53 /* IOCTL_PRIVATE_TI_GET_MODE Definitions */
54 #define TI_MODE_CONFIGURING 0 /* Device has not entered start device */
55 #define TI_MODE_BOOT 1 /* Staying in boot mode */
56 #define TI_MODE_DOWNLOAD 2 /* Made it to download mode */
57 #define TI_MODE_TRANSITIONING 3 /* Currently in boot mode but
58 transitioning to download mode */
61 #define EDGE_READ_URB_RUNNING 0
62 #define EDGE_READ_URB_STOPPING 1
63 #define EDGE_READ_URB_STOPPED 2
65 #define EDGE_CLOSING_WAIT 4000 /* in .01 sec */
67 #define EDGE_OUT_BUF_SIZE 1024
70 /* Product information read from the Edgeport */
72 int TiMode
; /* Current TI Mode */
73 __u8 hardware_type
; /* Type of hardware */
74 } __attribute__((packed
));
76 struct edgeport_port
{
83 __u32 ump_read_timeout
; /* Number of milliseconds the UMP will
84 wait without data before completing
90 struct edgeport_serial
*edge_serial
;
91 struct usb_serial_port
*port
;
92 __u8 bUartMode
; /* Port type, 0: RS232, etc. */
94 int ep_read_urb_state
;
95 int ep_write_urb_in_use
;
96 struct kfifo write_fifo
;
99 struct edgeport_serial
{
100 struct product_info product_info
;
101 u8 TI_I2C_Type
; /* Type of I2C in UMP */
102 u8 TiReadI2C
; /* Set to TRUE if we have read the
104 struct mutex es_lock
;
106 struct usb_serial
*serial
;
110 /* Devices that this driver supports */
111 static const struct usb_device_id edgeport_1port_id_table
[] = {
112 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_1
) },
113 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1
) },
114 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I
) },
115 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_PROXIMITY
) },
116 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_MOTION
) },
117 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_MOISTURE
) },
118 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_TEMPERATURE
) },
119 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_HUMIDITY
) },
120 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_POWER
) },
121 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_LIGHT
) },
122 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_RADIATION
) },
123 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_DISTANCE
) },
124 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_ACCELERATION
) },
125 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_PROX_DIST
) },
126 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_PLUS_PWR_HP4CD
) },
127 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_PLUS_PWR_PCI
) },
131 static const struct usb_device_id edgeport_2port_id_table
[] = {
132 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_2
) },
133 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_2C
) },
134 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_2I
) },
135 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_421
) },
136 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_21
) },
137 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_42
) },
138 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_4
) },
139 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_4I
) },
140 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_22I
) },
141 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_221C
) },
142 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_22C
) },
143 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_21C
) },
144 /* The 4, 8 and 16 port devices show up as multiple 2 port devices */
145 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_4S
) },
146 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_8
) },
147 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_8S
) },
148 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_416
) },
149 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_416B
) },
153 /* Devices that this driver supports */
154 static const struct usb_device_id id_table_combined
[] = {
155 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_1
) },
156 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1
) },
157 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I
) },
158 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_PROXIMITY
) },
159 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_MOTION
) },
160 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_MOISTURE
) },
161 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_TEMPERATURE
) },
162 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_HUMIDITY
) },
163 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_POWER
) },
164 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_LIGHT
) },
165 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_RADIATION
) },
166 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_DISTANCE
) },
167 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_ACCELERATION
) },
168 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_PROX_DIST
) },
169 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_PLUS_PWR_HP4CD
) },
170 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_PLUS_PWR_PCI
) },
171 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_2
) },
172 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_2C
) },
173 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_2I
) },
174 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_421
) },
175 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_21
) },
176 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_42
) },
177 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_4
) },
178 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_4I
) },
179 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_22I
) },
180 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_221C
) },
181 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_22C
) },
182 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_21C
) },
183 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_4S
) },
184 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_8
) },
185 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_8S
) },
186 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_416
) },
187 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_416B
) },
191 MODULE_DEVICE_TABLE(usb
, id_table_combined
);
193 static unsigned char OperationalMajorVersion
;
194 static unsigned char OperationalMinorVersion
;
195 static unsigned short OperationalBuildNumber
;
197 static int closing_wait
= EDGE_CLOSING_WAIT
;
198 static bool ignore_cpu_rev
;
199 static int default_uart_mode
; /* RS232 */
201 static void edge_tty_recv(struct usb_serial_port
*port
, unsigned char *data
,
204 static void stop_read(struct edgeport_port
*edge_port
);
205 static int restart_read(struct edgeport_port
*edge_port
);
207 static void edge_set_termios(struct tty_struct
*tty
,
208 struct usb_serial_port
*port
, struct ktermios
*old_termios
);
209 static void edge_send(struct usb_serial_port
*port
, struct tty_struct
*tty
);
211 /* sysfs attributes */
212 static int edge_create_sysfs_attrs(struct usb_serial_port
*port
);
213 static int edge_remove_sysfs_attrs(struct usb_serial_port
*port
);
216 static int ti_vread_sync(struct usb_device
*dev
, __u8 request
,
217 __u16 value
, __u16 index
, u8
*data
, int size
)
221 status
= usb_control_msg(dev
, usb_rcvctrlpipe(dev
, 0), request
,
222 (USB_TYPE_VENDOR
| USB_RECIP_DEVICE
| USB_DIR_IN
),
223 value
, index
, data
, size
, 1000);
226 if (status
!= size
) {
227 dev_dbg(&dev
->dev
, "%s - wanted to write %d, but only wrote %d\n",
228 __func__
, size
, status
);
234 static int ti_vsend_sync(struct usb_device
*dev
, __u8 request
,
235 __u16 value
, __u16 index
, u8
*data
, int size
)
239 status
= usb_control_msg(dev
, usb_sndctrlpipe(dev
, 0), request
,
240 (USB_TYPE_VENDOR
| USB_RECIP_DEVICE
| USB_DIR_OUT
),
241 value
, index
, data
, size
, 1000);
244 if (status
!= size
) {
245 dev_dbg(&dev
->dev
, "%s - wanted to write %d, but only wrote %d\n",
246 __func__
, size
, status
);
252 static int send_cmd(struct usb_device
*dev
, __u8 command
,
253 __u8 moduleid
, __u16 value
, u8
*data
,
256 return ti_vsend_sync(dev
, command
, value
, moduleid
, data
, size
);
259 /* clear tx/rx buffers and fifo in TI UMP */
260 static int purge_port(struct usb_serial_port
*port
, __u16 mask
)
262 int port_number
= port
->number
- port
->serial
->minor
;
264 dev_dbg(&port
->dev
, "%s - port %d, mask %x\n", __func__
, port_number
, mask
);
266 return send_cmd(port
->serial
->dev
,
268 (__u8
)(UMPM_UART1_PORT
+ port_number
),
275 * read_download_mem - Read edgeport memory from TI chip
276 * @dev: usb device pointer
277 * @start_address: Device CPU address at which to read
278 * @length: Length of above data
279 * @address_type: Can read both XDATA and I2C
280 * @buffer: pointer to input data buffer
282 static int read_download_mem(struct usb_device
*dev
, int start_address
,
283 int length
, __u8 address_type
, __u8
*buffer
)
287 __be16 be_start_address
;
289 dev_dbg(&dev
->dev
, "%s - @ %x for %d\n", __func__
, start_address
, length
);
291 /* Read in blocks of 64 bytes
292 * (TI firmware can't handle more than 64 byte reads)
298 read_length
= (__u8
)length
;
300 if (read_length
> 1) {
301 dev_dbg(&dev
->dev
, "%s - @ %x for %d\n", __func__
, start_address
, read_length
);
303 be_start_address
= cpu_to_be16(start_address
);
304 status
= ti_vread_sync(dev
, UMPC_MEMORY_READ
,
306 (__force __u16
)be_start_address
,
307 buffer
, read_length
);
310 dev_dbg(&dev
->dev
, "%s - ERROR %x\n", __func__
, status
);
315 usb_serial_debug_data(&dev
->dev
, __func__
, read_length
, buffer
);
317 /* Update pointers/length */
318 start_address
+= read_length
;
319 buffer
+= read_length
;
320 length
-= read_length
;
326 static int read_ram(struct usb_device
*dev
, int start_address
,
327 int length
, __u8
*buffer
)
329 return read_download_mem(dev
, start_address
, length
,
330 DTK_ADDR_SPACE_XDATA
, buffer
);
333 /* Read edgeport memory to a given block */
334 static int read_boot_mem(struct edgeport_serial
*serial
,
335 int start_address
, int length
, __u8
*buffer
)
340 for (i
= 0; i
< length
; i
++) {
341 status
= ti_vread_sync(serial
->serial
->dev
,
342 UMPC_MEMORY_READ
, serial
->TI_I2C_Type
,
343 (__u16
)(start_address
+i
), &buffer
[i
], 0x01);
345 dev_dbg(&serial
->serial
->dev
->dev
, "%s - ERROR %x\n", __func__
, status
);
350 dev_dbg(&serial
->serial
->dev
->dev
, "%s - start_address = %x, length = %d\n",
351 __func__
, start_address
, length
);
352 usb_serial_debug_data(&serial
->serial
->dev
->dev
, __func__
, length
, buffer
);
354 serial
->TiReadI2C
= 1;
359 /* Write given block to TI EPROM memory */
360 static int write_boot_mem(struct edgeport_serial
*serial
,
361 int start_address
, int length
, __u8
*buffer
)
367 /* Must do a read before write */
368 if (!serial
->TiReadI2C
) {
369 temp
= kmalloc(1, GFP_KERNEL
);
371 dev_err(&serial
->serial
->dev
->dev
,
372 "%s - out of memory\n", __func__
);
375 status
= read_boot_mem(serial
, 0, 1, temp
);
381 for (i
= 0; i
< length
; ++i
) {
382 status
= ti_vsend_sync(serial
->serial
->dev
,
383 UMPC_MEMORY_WRITE
, buffer
[i
],
384 (__u16
)(i
+ start_address
), NULL
, 0);
389 dev_dbg(&serial
->serial
->dev
->dev
, "%s - start_sddr = %x, length = %d\n", __func__
, start_address
, length
);
390 usb_serial_debug_data(&serial
->serial
->dev
->dev
, __func__
, length
, buffer
);
396 /* Write edgeport I2C memory to TI chip */
397 static int write_i2c_mem(struct edgeport_serial
*serial
,
398 int start_address
, int length
, __u8 address_type
, __u8
*buffer
)
400 struct device
*dev
= &serial
->serial
->dev
->dev
;
403 __be16 be_start_address
;
405 /* We can only send a maximum of 1 aligned byte page at a time */
407 /* calculate the number of bytes left in the first page */
408 write_length
= EPROM_PAGE_SIZE
-
409 (start_address
& (EPROM_PAGE_SIZE
- 1));
411 if (write_length
> length
)
412 write_length
= length
;
414 dev_dbg(dev
, "%s - BytesInFirstPage Addr = %x, length = %d\n",
415 __func__
, start_address
, write_length
);
416 usb_serial_debug_data(dev
, __func__
, write_length
, buffer
);
418 /* Write first page */
419 be_start_address
= cpu_to_be16(start_address
);
420 status
= ti_vsend_sync(serial
->serial
->dev
,
421 UMPC_MEMORY_WRITE
, (__u16
)address_type
,
422 (__force __u16
)be_start_address
,
423 buffer
, write_length
);
425 dev_dbg(dev
, "%s - ERROR %d\n", __func__
, status
);
429 length
-= write_length
;
430 start_address
+= write_length
;
431 buffer
+= write_length
;
433 /* We should be aligned now -- can write
434 max page size bytes at a time */
436 if (length
> EPROM_PAGE_SIZE
)
437 write_length
= EPROM_PAGE_SIZE
;
439 write_length
= length
;
441 dev_dbg(dev
, "%s - Page Write Addr = %x, length = %d\n",
442 __func__
, start_address
, write_length
);
443 usb_serial_debug_data(dev
, __func__
, write_length
, buffer
);
445 /* Write next page */
446 be_start_address
= cpu_to_be16(start_address
);
447 status
= ti_vsend_sync(serial
->serial
->dev
, UMPC_MEMORY_WRITE
,
449 (__force __u16
)be_start_address
,
450 buffer
, write_length
);
452 dev_err(dev
, "%s - ERROR %d\n", __func__
, status
);
456 length
-= write_length
;
457 start_address
+= write_length
;
458 buffer
+= write_length
;
463 /* Examine the UMP DMA registers and LSR
465 * Check the MSBit of the X and Y DMA byte count registers.
466 * A zero in this bit indicates that the TX DMA buffers are empty
467 * then check the TX Empty bit in the UART.
469 static int tx_active(struct edgeport_port
*port
)
472 struct out_endpoint_desc_block
*oedb
;
476 oedb
= kmalloc(sizeof(*oedb
), GFP_KERNEL
);
478 dev_err(&port
->port
->dev
, "%s - out of memory\n", __func__
);
482 lsr
= kmalloc(1, GFP_KERNEL
); /* Sigh, that's right, just one byte,
483 as not all platforms can do DMA
489 /* Read the DMA Count Registers */
490 status
= read_ram(port
->port
->serial
->dev
, port
->dma_address
,
491 sizeof(*oedb
), (void *)oedb
);
493 goto exit_is_tx_active
;
495 dev_dbg(&port
->port
->dev
, "%s - XByteCount 0x%X\n", __func__
, oedb
->XByteCount
);
498 status
= read_ram(port
->port
->serial
->dev
,
499 port
->uart_base
+ UMPMEM_OFFS_UART_LSR
, 1, lsr
);
502 goto exit_is_tx_active
;
503 dev_dbg(&port
->port
->dev
, "%s - LSR = 0x%X\n", __func__
, *lsr
);
505 /* If either buffer has data or we are transmitting then return TRUE */
506 if ((oedb
->XByteCount
& 0x80) != 0)
509 if ((*lsr
& UMP_UART_LSR_TX_MASK
) == 0)
512 /* We return Not Active if we get any kind of error */
514 dev_dbg(&port
->port
->dev
, "%s - return %d\n", __func__
, bytes_left
);
521 static int choose_config(struct usb_device
*dev
)
524 * There may be multiple configurations on this device, in which case
525 * we would need to read and parse all of them to find out which one
526 * we want. However, we just support one config at this point,
527 * configuration # 1, which is Config Descriptor 0.
530 dev_dbg(&dev
->dev
, "%s - Number of Interfaces = %d\n",
531 __func__
, dev
->config
->desc
.bNumInterfaces
);
532 dev_dbg(&dev
->dev
, "%s - MAX Power = %d\n",
533 __func__
, dev
->config
->desc
.bMaxPower
* 2);
535 if (dev
->config
->desc
.bNumInterfaces
!= 1) {
536 dev_err(&dev
->dev
, "%s - bNumInterfaces is not 1, ERROR!\n", __func__
);
543 static int read_rom(struct edgeport_serial
*serial
,
544 int start_address
, int length
, __u8
*buffer
)
548 if (serial
->product_info
.TiMode
== TI_MODE_DOWNLOAD
) {
549 status
= read_download_mem(serial
->serial
->dev
,
555 status
= read_boot_mem(serial
, start_address
, length
,
561 static int write_rom(struct edgeport_serial
*serial
, int start_address
,
562 int length
, __u8
*buffer
)
564 if (serial
->product_info
.TiMode
== TI_MODE_BOOT
)
565 return write_boot_mem(serial
, start_address
, length
,
568 if (serial
->product_info
.TiMode
== TI_MODE_DOWNLOAD
)
569 return write_i2c_mem(serial
, start_address
, length
,
570 serial
->TI_I2C_Type
, buffer
);
576 /* Read a descriptor header from I2C based on type */
577 static int get_descriptor_addr(struct edgeport_serial
*serial
,
578 int desc_type
, struct ti_i2c_desc
*rom_desc
)
583 /* Search for requested descriptor in I2C */
586 status
= read_rom(serial
,
588 sizeof(struct ti_i2c_desc
),
593 if (rom_desc
->Type
== desc_type
)
594 return start_address
;
596 start_address
= start_address
+ sizeof(struct ti_i2c_desc
)
599 } while ((start_address
< TI_MAX_I2C_SIZE
) && rom_desc
->Type
);
604 /* Validate descriptor checksum */
605 static int valid_csum(struct ti_i2c_desc
*rom_desc
, __u8
*buffer
)
610 for (i
= 0; i
< rom_desc
->Size
; i
++)
611 cs
= (__u8
)(cs
+ buffer
[i
]);
613 if (cs
!= rom_desc
->CheckSum
) {
614 pr_debug("%s - Mismatch %x - %x", __func__
, rom_desc
->CheckSum
, cs
);
620 /* Make sure that the I2C image is good */
621 static int check_i2c_image(struct edgeport_serial
*serial
)
623 struct device
*dev
= &serial
->serial
->dev
->dev
;
625 struct ti_i2c_desc
*rom_desc
;
626 int start_address
= 2;
630 rom_desc
= kmalloc(sizeof(*rom_desc
), GFP_KERNEL
);
632 dev_err(dev
, "%s - out of memory\n", __func__
);
635 buffer
= kmalloc(TI_MAX_I2C_SIZE
, GFP_KERNEL
);
637 dev_err(dev
, "%s - out of memory when allocating buffer\n",
643 /* Read the first byte (Signature0) must be 0x52 or 0x10 */
644 status
= read_rom(serial
, 0, 1, buffer
);
648 if (*buffer
!= UMP5152
&& *buffer
!= UMP3410
) {
649 dev_err(dev
, "%s - invalid buffer signature\n", __func__
);
655 /* Validate the I2C */
656 status
= read_rom(serial
,
658 sizeof(struct ti_i2c_desc
),
663 if ((start_address
+ sizeof(struct ti_i2c_desc
) +
664 rom_desc
->Size
) > TI_MAX_I2C_SIZE
) {
666 dev_dbg(dev
, "%s - structure too big, erroring out.\n", __func__
);
670 dev_dbg(dev
, "%s Type = 0x%x\n", __func__
, rom_desc
->Type
);
672 /* Skip type 2 record */
673 ttype
= rom_desc
->Type
& 0x0f;
674 if (ttype
!= I2C_DESC_TYPE_FIRMWARE_BASIC
675 && ttype
!= I2C_DESC_TYPE_FIRMWARE_AUTO
) {
676 /* Read the descriptor data */
677 status
= read_rom(serial
, start_address
+
678 sizeof(struct ti_i2c_desc
),
679 rom_desc
->Size
, buffer
);
683 status
= valid_csum(rom_desc
, buffer
);
687 start_address
= start_address
+ sizeof(struct ti_i2c_desc
) +
690 } while ((rom_desc
->Type
!= I2C_DESC_TYPE_ION
) &&
691 (start_address
< TI_MAX_I2C_SIZE
));
693 if ((rom_desc
->Type
!= I2C_DESC_TYPE_ION
) ||
694 (start_address
> TI_MAX_I2C_SIZE
))
703 static int get_manuf_info(struct edgeport_serial
*serial
, __u8
*buffer
)
707 struct ti_i2c_desc
*rom_desc
;
708 struct edge_ti_manuf_descriptor
*desc
;
709 struct device
*dev
= &serial
->serial
->dev
->dev
;
711 rom_desc
= kmalloc(sizeof(*rom_desc
), GFP_KERNEL
);
713 dev_err(dev
, "%s - out of memory\n", __func__
);
716 start_address
= get_descriptor_addr(serial
, I2C_DESC_TYPE_ION
,
719 if (!start_address
) {
720 dev_dbg(dev
, "%s - Edge Descriptor not found in I2C\n", __func__
);
725 /* Read the descriptor data */
726 status
= read_rom(serial
, start_address
+sizeof(struct ti_i2c_desc
),
727 rom_desc
->Size
, buffer
);
731 status
= valid_csum(rom_desc
, buffer
);
733 desc
= (struct edge_ti_manuf_descriptor
*)buffer
;
734 dev_dbg(dev
, "%s - IonConfig 0x%x\n", __func__
, desc
->IonConfig
);
735 dev_dbg(dev
, "%s - Version %d\n", __func__
, desc
->Version
);
736 dev_dbg(dev
, "%s - Cpu/Board 0x%x\n", __func__
, desc
->CpuRev_BoardRev
);
737 dev_dbg(dev
, "%s - NumPorts %d\n", __func__
, desc
->NumPorts
);
738 dev_dbg(dev
, "%s - NumVirtualPorts %d\n", __func__
, desc
->NumVirtualPorts
);
739 dev_dbg(dev
, "%s - TotalPorts %d\n", __func__
, desc
->TotalPorts
);
746 /* Build firmware header used for firmware update */
747 static int build_i2c_fw_hdr(__u8
*header
, struct device
*dev
)
754 struct ti_i2c_desc
*i2c_header
;
755 struct ti_i2c_image_header
*img_header
;
756 struct ti_i2c_firmware_rec
*firmware_rec
;
757 const struct firmware
*fw
;
758 const char *fw_name
= "edgeport/down3.bin";
760 /* In order to update the I2C firmware we must change the type 2 record
761 * to type 0xF2. This will force the UMP to come up in Boot Mode.
762 * Then while in boot mode, the driver will download the latest
763 * firmware (padded to 15.5k) into the UMP ram. And finally when the
764 * device comes back up in download mode the driver will cause the new
765 * firmware to be copied from the UMP Ram to I2C and the firmware will
766 * update the record type from 0xf2 to 0x02.
769 /* Allocate a 15.5k buffer + 2 bytes for version number
770 * (Firmware Record) */
771 buffer_size
= (((1024 * 16) - 512 ) +
772 sizeof(struct ti_i2c_firmware_rec
));
774 buffer
= kmalloc(buffer_size
, GFP_KERNEL
);
776 dev_err(dev
, "%s - out of memory\n", __func__
);
780 // Set entire image of 0xffs
781 memset(buffer
, 0xff, buffer_size
);
783 err
= request_firmware(&fw
, fw_name
, dev
);
785 dev_err(dev
, "Failed to load image \"%s\" err %d\n",
791 /* Save Download Version Number */
792 OperationalMajorVersion
= fw
->data
[0];
793 OperationalMinorVersion
= fw
->data
[1];
794 OperationalBuildNumber
= fw
->data
[2] | (fw
->data
[3] << 8);
796 /* Copy version number into firmware record */
797 firmware_rec
= (struct ti_i2c_firmware_rec
*)buffer
;
799 firmware_rec
->Ver_Major
= OperationalMajorVersion
;
800 firmware_rec
->Ver_Minor
= OperationalMinorVersion
;
802 /* Pointer to fw_down memory image */
803 img_header
= (struct ti_i2c_image_header
*)&fw
->data
[4];
805 memcpy(buffer
+ sizeof(struct ti_i2c_firmware_rec
),
806 &fw
->data
[4 + sizeof(struct ti_i2c_image_header
)],
807 le16_to_cpu(img_header
->Length
));
809 release_firmware(fw
);
811 for (i
=0; i
< buffer_size
; i
++) {
812 cs
= (__u8
)(cs
+ buffer
[i
]);
817 /* Build new header */
818 i2c_header
= (struct ti_i2c_desc
*)header
;
819 firmware_rec
= (struct ti_i2c_firmware_rec
*)i2c_header
->Data
;
821 i2c_header
->Type
= I2C_DESC_TYPE_FIRMWARE_BLANK
;
822 i2c_header
->Size
= (__u16
)buffer_size
;
823 i2c_header
->CheckSum
= cs
;
824 firmware_rec
->Ver_Major
= OperationalMajorVersion
;
825 firmware_rec
->Ver_Minor
= OperationalMinorVersion
;
830 /* Try to figure out what type of I2c we have */
831 static int i2c_type_bootmode(struct edgeport_serial
*serial
)
833 struct device
*dev
= &serial
->serial
->dev
->dev
;
837 data
= kmalloc(1, GFP_KERNEL
);
839 dev_err(dev
, "%s - out of memory\n", __func__
);
843 /* Try to read type 2 */
844 status
= ti_vread_sync(serial
->serial
->dev
, UMPC_MEMORY_READ
,
845 DTK_ADDR_SPACE_I2C_TYPE_II
, 0, data
, 0x01);
847 dev_dbg(dev
, "%s - read 2 status error = %d\n", __func__
, status
);
849 dev_dbg(dev
, "%s - read 2 data = 0x%x\n", __func__
, *data
);
850 if ((!status
) && (*data
== UMP5152
|| *data
== UMP3410
)) {
851 dev_dbg(dev
, "%s - ROM_TYPE_II\n", __func__
);
852 serial
->TI_I2C_Type
= DTK_ADDR_SPACE_I2C_TYPE_II
;
856 /* Try to read type 3 */
857 status
= ti_vread_sync(serial
->serial
->dev
, UMPC_MEMORY_READ
,
858 DTK_ADDR_SPACE_I2C_TYPE_III
, 0, data
, 0x01);
860 dev_dbg(dev
, "%s - read 3 status error = %d\n", __func__
, status
);
862 dev_dbg(dev
, "%s - read 2 data = 0x%x\n", __func__
, *data
);
863 if ((!status
) && (*data
== UMP5152
|| *data
== UMP3410
)) {
864 dev_dbg(dev
, "%s - ROM_TYPE_III\n", __func__
);
865 serial
->TI_I2C_Type
= DTK_ADDR_SPACE_I2C_TYPE_III
;
869 dev_dbg(dev
, "%s - Unknown\n", __func__
);
870 serial
->TI_I2C_Type
= DTK_ADDR_SPACE_I2C_TYPE_II
;
877 static int bulk_xfer(struct usb_serial
*serial
, void *buffer
,
878 int length
, int *num_sent
)
882 status
= usb_bulk_msg(serial
->dev
,
883 usb_sndbulkpipe(serial
->dev
,
884 serial
->port
[0]->bulk_out_endpointAddress
),
885 buffer
, length
, num_sent
, 1000);
889 /* Download given firmware image to the device (IN BOOT MODE) */
890 static int download_code(struct edgeport_serial
*serial
, __u8
*image
,
898 /* Transfer firmware image */
899 for (pos
= 0; pos
< image_length
; ) {
900 /* Read the next buffer from file */
901 transfer
= image_length
- pos
;
902 if (transfer
> EDGE_FW_BULK_MAX_PACKET_SIZE
)
903 transfer
= EDGE_FW_BULK_MAX_PACKET_SIZE
;
906 status
= bulk_xfer(serial
->serial
, &image
[pos
],
910 /* Advance buffer pointer */
918 static int config_boot_dev(struct usb_device
*dev
)
923 static int ti_cpu_rev(struct edge_ti_manuf_descriptor
*desc
)
925 return TI_GET_CPU_REVISION(desc
->CpuRev_BoardRev
);
929 * DownloadTIFirmware - Download run-time operating firmware to the TI5052
931 * This routine downloads the main operating code into the TI5052, using the
932 * boot code already burned into E2PROM or ROM.
934 static int download_fw(struct edgeport_serial
*serial
)
936 struct device
*dev
= &serial
->serial
->dev
->dev
;
939 struct edge_ti_manuf_descriptor
*ti_manuf_desc
;
940 struct usb_interface_descriptor
*interface
;
941 int download_cur_ver
;
942 int download_new_ver
;
944 /* This routine is entered by both the BOOT mode and the Download mode
945 * We can determine which code is running by the reading the config
946 * descriptor and if we have only one bulk pipe it is in boot mode
948 serial
->product_info
.hardware_type
= HARDWARE_TYPE_TIUMP
;
950 /* Default to type 2 i2c */
951 serial
->TI_I2C_Type
= DTK_ADDR_SPACE_I2C_TYPE_II
;
953 status
= choose_config(serial
->serial
->dev
);
957 interface
= &serial
->serial
->interface
->cur_altsetting
->desc
;
959 dev_err(dev
, "%s - no interface set, error!\n", __func__
);
964 * Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING
965 * if we have more than one endpoint we are definitely in download
968 if (interface
->bNumEndpoints
> 1)
969 serial
->product_info
.TiMode
= TI_MODE_DOWNLOAD
;
971 /* Otherwise we will remain in configuring mode */
972 serial
->product_info
.TiMode
= TI_MODE_CONFIGURING
;
974 /********************************************************************/
976 /********************************************************************/
977 if (serial
->product_info
.TiMode
== TI_MODE_DOWNLOAD
) {
978 struct ti_i2c_desc
*rom_desc
;
980 dev_dbg(dev
, "%s - RUNNING IN DOWNLOAD MODE\n", __func__
);
982 status
= check_i2c_image(serial
);
984 dev_dbg(dev
, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__
);
988 /* Validate Hardware version number
989 * Read Manufacturing Descriptor from TI Based Edgeport
991 ti_manuf_desc
= kmalloc(sizeof(*ti_manuf_desc
), GFP_KERNEL
);
992 if (!ti_manuf_desc
) {
993 dev_err(dev
, "%s - out of memory.\n", __func__
);
996 status
= get_manuf_info(serial
, (__u8
*)ti_manuf_desc
);
998 kfree(ti_manuf_desc
);
1002 /* Check version number of ION descriptor */
1003 if (!ignore_cpu_rev
&& ti_cpu_rev(ti_manuf_desc
) < 2) {
1004 dev_dbg(dev
, "%s - Wrong CPU Rev %d (Must be 2)\n",
1005 __func__
, ti_cpu_rev(ti_manuf_desc
));
1006 kfree(ti_manuf_desc
);
1010 rom_desc
= kmalloc(sizeof(*rom_desc
), GFP_KERNEL
);
1012 dev_err(dev
, "%s - out of memory.\n", __func__
);
1013 kfree(ti_manuf_desc
);
1017 /* Search for type 2 record (firmware record) */
1018 start_address
= get_descriptor_addr(serial
,
1019 I2C_DESC_TYPE_FIRMWARE_BASIC
, rom_desc
);
1020 if (start_address
!= 0) {
1021 struct ti_i2c_firmware_rec
*firmware_version
;
1024 dev_dbg(dev
, "%s - Found Type FIRMWARE (Type 2) record\n", __func__
);
1026 firmware_version
= kmalloc(sizeof(*firmware_version
),
1028 if (!firmware_version
) {
1029 dev_err(dev
, "%s - out of memory.\n", __func__
);
1031 kfree(ti_manuf_desc
);
1035 /* Validate version number
1036 * Read the descriptor data
1038 status
= read_rom(serial
, start_address
+
1039 sizeof(struct ti_i2c_desc
),
1040 sizeof(struct ti_i2c_firmware_rec
),
1041 (__u8
*)firmware_version
);
1043 kfree(firmware_version
);
1045 kfree(ti_manuf_desc
);
1049 /* Check version number of download with current
1051 download_cur_ver
= (firmware_version
->Ver_Major
<< 8) +
1052 (firmware_version
->Ver_Minor
);
1053 download_new_ver
= (OperationalMajorVersion
<< 8) +
1054 (OperationalMinorVersion
);
1056 dev_dbg(dev
, "%s - >> FW Versions Device %d.%d Driver %d.%d\n",
1057 __func__
, firmware_version
->Ver_Major
,
1058 firmware_version
->Ver_Minor
,
1059 OperationalMajorVersion
,
1060 OperationalMinorVersion
);
1062 /* Check if we have an old version in the I2C and
1063 update if necessary */
1064 if (download_cur_ver
< download_new_ver
) {
1065 dev_dbg(dev
, "%s - Update I2C dld from %d.%d to %d.%d\n",
1067 firmware_version
->Ver_Major
,
1068 firmware_version
->Ver_Minor
,
1069 OperationalMajorVersion
,
1070 OperationalMinorVersion
);
1072 record
= kmalloc(1, GFP_KERNEL
);
1074 dev_err(dev
, "%s - out of memory.\n",
1076 kfree(firmware_version
);
1078 kfree(ti_manuf_desc
);
1081 /* In order to update the I2C firmware we must
1082 * change the type 2 record to type 0xF2. This
1083 * will force the UMP to come up in Boot Mode.
1084 * Then while in boot mode, the driver will
1085 * download the latest firmware (padded to
1086 * 15.5k) into the UMP ram. Finally when the
1087 * device comes back up in download mode the
1088 * driver will cause the new firmware to be
1089 * copied from the UMP Ram to I2C and the
1090 * firmware will update the record type from
1093 *record
= I2C_DESC_TYPE_FIRMWARE_BLANK
;
1095 /* Change the I2C Firmware record type to
1096 0xf2 to trigger an update */
1097 status
= write_rom(serial
, start_address
,
1098 sizeof(*record
), record
);
1101 kfree(firmware_version
);
1103 kfree(ti_manuf_desc
);
1107 /* verify the write -- must do this in order
1108 * for write to complete before we do the
1111 status
= read_rom(serial
,
1117 kfree(firmware_version
);
1119 kfree(ti_manuf_desc
);
1123 if (*record
!= I2C_DESC_TYPE_FIRMWARE_BLANK
) {
1124 dev_err(dev
, "%s - error resetting device\n", __func__
);
1126 kfree(firmware_version
);
1128 kfree(ti_manuf_desc
);
1132 dev_dbg(dev
, "%s - HARDWARE RESET\n", __func__
);
1134 /* Reset UMP -- Back to BOOT MODE */
1135 status
= ti_vsend_sync(serial
->serial
->dev
,
1136 UMPC_HARDWARE_RESET
,
1139 dev_dbg(dev
, "%s - HARDWARE RESET return %d\n", __func__
, status
);
1141 /* return an error on purpose. */
1143 kfree(firmware_version
);
1145 kfree(ti_manuf_desc
);
1148 kfree(firmware_version
);
1150 /* Search for type 0xF2 record (firmware blank record) */
1151 else if ((start_address
= get_descriptor_addr(serial
, I2C_DESC_TYPE_FIRMWARE_BLANK
, rom_desc
)) != 0) {
1152 #define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \
1153 sizeof(struct ti_i2c_firmware_rec))
1157 header
= kmalloc(HEADER_SIZE
, GFP_KERNEL
);
1159 dev_err(dev
, "%s - out of memory.\n", __func__
);
1161 kfree(ti_manuf_desc
);
1165 vheader
= kmalloc(HEADER_SIZE
, GFP_KERNEL
);
1167 dev_err(dev
, "%s - out of memory.\n", __func__
);
1170 kfree(ti_manuf_desc
);
1174 dev_dbg(dev
, "%s - Found Type BLANK FIRMWARE (Type F2) record\n", __func__
);
1177 * In order to update the I2C firmware we must change
1178 * the type 2 record to type 0xF2. This will force the
1179 * UMP to come up in Boot Mode. Then while in boot
1180 * mode, the driver will download the latest firmware
1181 * (padded to 15.5k) into the UMP ram. Finally when the
1182 * device comes back up in download mode the driver
1183 * will cause the new firmware to be copied from the
1184 * UMP Ram to I2C and the firmware will update the
1185 * record type from 0xf2 to 0x02.
1187 status
= build_i2c_fw_hdr(header
, dev
);
1192 kfree(ti_manuf_desc
);
1196 /* Update I2C with type 0xf2 record with correct
1197 size and checksum */
1198 status
= write_rom(serial
,
1206 kfree(ti_manuf_desc
);
1210 /* verify the write -- must do this in order for
1211 write to complete before we do the hardware reset */
1212 status
= read_rom(serial
, start_address
,
1213 HEADER_SIZE
, vheader
);
1216 dev_dbg(dev
, "%s - can't read header back\n", __func__
);
1220 kfree(ti_manuf_desc
);
1223 if (memcmp(vheader
, header
, HEADER_SIZE
)) {
1224 dev_dbg(dev
, "%s - write download record failed\n", __func__
);
1228 kfree(ti_manuf_desc
);
1235 dev_dbg(dev
, "%s - Start firmware update\n", __func__
);
1237 /* Tell firmware to copy download image into I2C */
1238 status
= ti_vsend_sync(serial
->serial
->dev
,
1239 UMPC_COPY_DNLD_TO_I2C
, 0, 0, NULL
, 0);
1241 dev_dbg(dev
, "%s - Update complete 0x%x\n", __func__
, status
);
1244 "%s - UMPC_COPY_DNLD_TO_I2C failed\n",
1247 kfree(ti_manuf_desc
);
1252 // The device is running the download code
1254 kfree(ti_manuf_desc
);
1258 /********************************************************************/
1260 /********************************************************************/
1261 dev_dbg(dev
, "%s - RUNNING IN BOOT MODE\n", __func__
);
1263 /* Configure the TI device so we can use the BULK pipes for download */
1264 status
= config_boot_dev(serial
->serial
->dev
);
1268 if (le16_to_cpu(serial
->serial
->dev
->descriptor
.idVendor
)
1269 != USB_VENDOR_ID_ION
) {
1270 dev_dbg(dev
, "%s - VID = 0x%x\n", __func__
,
1271 le16_to_cpu(serial
->serial
->dev
->descriptor
.idVendor
));
1272 serial
->TI_I2C_Type
= DTK_ADDR_SPACE_I2C_TYPE_II
;
1273 goto stayinbootmode
;
1276 /* We have an ION device (I2c Must be programmed)
1277 Determine I2C image type */
1278 if (i2c_type_bootmode(serial
))
1279 goto stayinbootmode
;
1281 /* Check for ION Vendor ID and that the I2C is valid */
1282 if (!check_i2c_image(serial
)) {
1283 struct ti_i2c_image_header
*header
;
1289 const struct firmware
*fw
;
1290 const char *fw_name
= "edgeport/down3.bin";
1292 /* Validate Hardware version number
1293 * Read Manufacturing Descriptor from TI Based Edgeport
1295 ti_manuf_desc
= kmalloc(sizeof(*ti_manuf_desc
), GFP_KERNEL
);
1296 if (!ti_manuf_desc
) {
1297 dev_err(dev
, "%s - out of memory.\n", __func__
);
1300 status
= get_manuf_info(serial
, (__u8
*)ti_manuf_desc
);
1302 kfree(ti_manuf_desc
);
1303 goto stayinbootmode
;
1306 /* Check for version 2 */
1307 if (!ignore_cpu_rev
&& ti_cpu_rev(ti_manuf_desc
) < 2) {
1308 dev_dbg(dev
, "%s - Wrong CPU Rev %d (Must be 2)\n",
1309 __func__
, ti_cpu_rev(ti_manuf_desc
));
1310 kfree(ti_manuf_desc
);
1311 goto stayinbootmode
;
1314 kfree(ti_manuf_desc
);
1317 * In order to update the I2C firmware we must change the type
1318 * 2 record to type 0xF2. This will force the UMP to come up
1319 * in Boot Mode. Then while in boot mode, the driver will
1320 * download the latest firmware (padded to 15.5k) into the
1321 * UMP ram. Finally when the device comes back up in download
1322 * mode the driver will cause the new firmware to be copied
1323 * from the UMP Ram to I2C and the firmware will update the
1324 * record type from 0xf2 to 0x02.
1326 * Do we really have to copy the whole firmware image,
1327 * or could we do this in place!
1330 /* Allocate a 15.5k buffer + 3 byte header */
1331 buffer_size
= (((1024 * 16) - 512) +
1332 sizeof(struct ti_i2c_image_header
));
1333 buffer
= kmalloc(buffer_size
, GFP_KERNEL
);
1335 dev_err(dev
, "%s - out of memory\n", __func__
);
1339 /* Initialize the buffer to 0xff (pad the buffer) */
1340 memset(buffer
, 0xff, buffer_size
);
1342 err
= request_firmware(&fw
, fw_name
, dev
);
1344 dev_err(dev
, "Failed to load image \"%s\" err %d\n",
1349 memcpy(buffer
, &fw
->data
[4], fw
->size
- 4);
1350 release_firmware(fw
);
1352 for (i
= sizeof(struct ti_i2c_image_header
);
1353 i
< buffer_size
; i
++) {
1354 cs
= (__u8
)(cs
+ buffer
[i
]);
1357 header
= (struct ti_i2c_image_header
*)buffer
;
1359 /* update length and checksum after padding */
1360 header
->Length
= cpu_to_le16((__u16
)(buffer_size
-
1361 sizeof(struct ti_i2c_image_header
)));
1362 header
->CheckSum
= cs
;
1364 /* Download the operational code */
1365 dev_dbg(dev
, "%s - Downloading operational code image (TI UMP)\n", __func__
);
1366 status
= download_code(serial
, buffer
, buffer_size
);
1371 dev_dbg(dev
, "%s - Error downloading operational code image\n", __func__
);
1375 /* Device will reboot */
1376 serial
->product_info
.TiMode
= TI_MODE_TRANSITIONING
;
1378 dev_dbg(dev
, "%s - Download successful -- Device rebooting...\n", __func__
);
1380 /* return an error on purpose */
1385 /* Eprom is invalid or blank stay in boot mode */
1386 dev_dbg(dev
, "%s - STAYING IN BOOT MODE\n", __func__
);
1387 serial
->product_info
.TiMode
= TI_MODE_BOOT
;
1393 static int ti_do_config(struct edgeport_port
*port
, int feature
, int on
)
1395 int port_number
= port
->port
->number
- port
->port
->serial
->minor
;
1396 on
= !!on
; /* 1 or 0 not bitmask */
1397 return send_cmd(port
->port
->serial
->dev
,
1398 feature
, (__u8
)(UMPM_UART1_PORT
+ port_number
),
1403 static int restore_mcr(struct edgeport_port
*port
, __u8 mcr
)
1407 dev_dbg(&port
->port
->dev
, "%s - %x\n", __func__
, mcr
);
1409 status
= ti_do_config(port
, UMPC_SET_CLR_DTR
, mcr
& MCR_DTR
);
1412 status
= ti_do_config(port
, UMPC_SET_CLR_RTS
, mcr
& MCR_RTS
);
1415 return ti_do_config(port
, UMPC_SET_CLR_LOOPBACK
, mcr
& MCR_LOOPBACK
);
1418 /* Convert TI LSR to standard UART flags */
1419 static __u8
map_line_status(__u8 ti_lsr
)
1423 #define MAP_FLAG(flagUmp, flagUart) \
1424 if (ti_lsr & flagUmp) \
1427 MAP_FLAG(UMP_UART_LSR_OV_MASK
, LSR_OVER_ERR
) /* overrun */
1428 MAP_FLAG(UMP_UART_LSR_PE_MASK
, LSR_PAR_ERR
) /* parity error */
1429 MAP_FLAG(UMP_UART_LSR_FE_MASK
, LSR_FRM_ERR
) /* framing error */
1430 MAP_FLAG(UMP_UART_LSR_BR_MASK
, LSR_BREAK
) /* break detected */
1431 MAP_FLAG(UMP_UART_LSR_RX_MASK
, LSR_RX_AVAIL
) /* rx data available */
1432 MAP_FLAG(UMP_UART_LSR_TX_MASK
, LSR_TX_EMPTY
) /* tx hold reg empty */
1439 static void handle_new_msr(struct edgeport_port
*edge_port
, __u8 msr
)
1441 struct async_icount
*icount
;
1442 struct tty_struct
*tty
;
1444 dev_dbg(&edge_port
->port
->dev
, "%s - %02x\n", __func__
, msr
);
1446 if (msr
& (EDGEPORT_MSR_DELTA_CTS
| EDGEPORT_MSR_DELTA_DSR
|
1447 EDGEPORT_MSR_DELTA_RI
| EDGEPORT_MSR_DELTA_CD
)) {
1448 icount
= &edge_port
->port
->icount
;
1450 /* update input line counters */
1451 if (msr
& EDGEPORT_MSR_DELTA_CTS
)
1453 if (msr
& EDGEPORT_MSR_DELTA_DSR
)
1455 if (msr
& EDGEPORT_MSR_DELTA_CD
)
1457 if (msr
& EDGEPORT_MSR_DELTA_RI
)
1459 wake_up_interruptible(&edge_port
->port
->port
.delta_msr_wait
);
1462 /* Save the new modem status */
1463 edge_port
->shadow_msr
= msr
& 0xf0;
1465 tty
= tty_port_tty_get(&edge_port
->port
->port
);
1466 /* handle CTS flow control */
1467 if (tty
&& C_CRTSCTS(tty
)) {
1468 if (msr
& EDGEPORT_MSR_CTS
) {
1469 tty
->hw_stopped
= 0;
1472 tty
->hw_stopped
= 1;
1478 static void handle_new_lsr(struct edgeport_port
*edge_port
, int lsr_data
,
1479 __u8 lsr
, __u8 data
)
1481 struct async_icount
*icount
;
1482 __u8 new_lsr
= (__u8
)(lsr
& (__u8
)(LSR_OVER_ERR
| LSR_PAR_ERR
|
1483 LSR_FRM_ERR
| LSR_BREAK
));
1485 dev_dbg(&edge_port
->port
->dev
, "%s - %02x\n", __func__
, new_lsr
);
1487 edge_port
->shadow_lsr
= lsr
;
1489 if (new_lsr
& LSR_BREAK
)
1491 * Parity and Framing errors only count if they
1492 * occur exclusive of a break being received.
1494 new_lsr
&= (__u8
)(LSR_OVER_ERR
| LSR_BREAK
);
1496 /* Place LSR data byte into Rx buffer */
1498 edge_tty_recv(edge_port
->port
, &data
, 1);
1500 /* update input line counters */
1501 icount
= &edge_port
->port
->icount
;
1502 if (new_lsr
& LSR_BREAK
)
1504 if (new_lsr
& LSR_OVER_ERR
)
1506 if (new_lsr
& LSR_PAR_ERR
)
1508 if (new_lsr
& LSR_FRM_ERR
)
1513 static void edge_interrupt_callback(struct urb
*urb
)
1515 struct edgeport_serial
*edge_serial
= urb
->context
;
1516 struct usb_serial_port
*port
;
1517 struct edgeport_port
*edge_port
;
1519 unsigned char *data
= urb
->transfer_buffer
;
1520 int length
= urb
->actual_length
;
1526 int status
= urb
->status
;
1535 /* this urb is terminated, clean up */
1536 dev_dbg(&urb
->dev
->dev
, "%s - urb shutting down with status: %d\n",
1540 dev_err(&urb
->dev
->dev
, "%s - nonzero urb status received: "
1541 "%d\n", __func__
, status
);
1546 dev_dbg(&urb
->dev
->dev
, "%s - no data in urb\n", __func__
);
1550 dev
= &edge_serial
->serial
->dev
->dev
;
1551 usb_serial_debug_data(dev
, __func__
, length
, data
);
1554 dev_dbg(dev
, "%s - expecting packet of size 2, got %d\n", __func__
, length
);
1558 port_number
= TIUMP_GET_PORT_FROM_CODE(data
[0]);
1559 function
= TIUMP_GET_FUNC_FROM_CODE(data
[0]);
1560 dev_dbg(dev
, "%s - port_number %d, function %d, info 0x%x\n", __func__
,
1561 port_number
, function
, data
[1]);
1562 port
= edge_serial
->serial
->port
[port_number
];
1563 edge_port
= usb_get_serial_port_data(port
);
1565 dev_dbg(dev
, "%s - edge_port not found\n", __func__
);
1569 case TIUMP_INTERRUPT_CODE_LSR
:
1570 lsr
= map_line_status(data
[1]);
1571 if (lsr
& UMP_UART_LSR_DATA_MASK
) {
1572 /* Save the LSR event for bulk read
1573 completion routine */
1574 dev_dbg(dev
, "%s - LSR Event Port %u LSR Status = %02x\n",
1575 __func__
, port_number
, lsr
);
1576 edge_port
->lsr_event
= 1;
1577 edge_port
->lsr_mask
= lsr
;
1579 dev_dbg(dev
, "%s - ===== Port %d LSR Status = %02x ======\n",
1580 __func__
, port_number
, lsr
);
1581 handle_new_lsr(edge_port
, 0, lsr
, 0);
1585 case TIUMP_INTERRUPT_CODE_MSR
: /* MSR */
1586 /* Copy MSR from UMP */
1588 dev_dbg(dev
, "%s - ===== Port %u MSR Status = %02x ======\n",
1589 __func__
, port_number
, msr
);
1590 handle_new_msr(edge_port
, msr
);
1594 dev_err(&urb
->dev
->dev
,
1595 "%s - Unknown Interrupt code from UMP %x\n",
1602 retval
= usb_submit_urb(urb
, GFP_ATOMIC
);
1604 dev_err(&urb
->dev
->dev
,
1605 "%s - usb_submit_urb failed with result %d\n",
1609 static void edge_bulk_in_callback(struct urb
*urb
)
1611 struct edgeport_port
*edge_port
= urb
->context
;
1612 struct device
*dev
= &edge_port
->port
->dev
;
1613 unsigned char *data
= urb
->transfer_buffer
;
1616 int status
= urb
->status
;
1625 /* this urb is terminated, clean up */
1626 dev_dbg(&urb
->dev
->dev
, "%s - urb shutting down with status: %d\n", __func__
, status
);
1629 dev_err(&urb
->dev
->dev
, "%s - nonzero read bulk status received: %d\n", __func__
, status
);
1632 if (status
== -EPIPE
)
1636 dev_err(&urb
->dev
->dev
, "%s - stopping read!\n", __func__
);
1640 port_number
= edge_port
->port
->number
- edge_port
->port
->serial
->minor
;
1642 if (edge_port
->lsr_event
) {
1643 edge_port
->lsr_event
= 0;
1644 dev_dbg(dev
, "%s ===== Port %u LSR Status = %02x, Data = %02x ======\n",
1645 __func__
, port_number
, edge_port
->lsr_mask
, *data
);
1646 handle_new_lsr(edge_port
, 1, edge_port
->lsr_mask
, *data
);
1647 /* Adjust buffer length/pointer */
1648 --urb
->actual_length
;
1652 if (urb
->actual_length
) {
1653 usb_serial_debug_data(dev
, __func__
, urb
->actual_length
, data
);
1654 if (edge_port
->close_pending
)
1655 dev_dbg(dev
, "%s - close pending, dropping data on the floor\n",
1658 edge_tty_recv(edge_port
->port
, data
,
1659 urb
->actual_length
);
1660 edge_port
->port
->icount
.rx
+= urb
->actual_length
;
1664 /* continue read unless stopped */
1665 spin_lock(&edge_port
->ep_lock
);
1666 if (edge_port
->ep_read_urb_state
== EDGE_READ_URB_RUNNING
)
1667 retval
= usb_submit_urb(urb
, GFP_ATOMIC
);
1668 else if (edge_port
->ep_read_urb_state
== EDGE_READ_URB_STOPPING
)
1669 edge_port
->ep_read_urb_state
= EDGE_READ_URB_STOPPED
;
1671 spin_unlock(&edge_port
->ep_lock
);
1673 dev_err(dev
, "%s - usb_submit_urb failed with result %d\n", __func__
, retval
);
1676 static void edge_tty_recv(struct usb_serial_port
*port
, unsigned char *data
,
1681 queued
= tty_insert_flip_string(&port
->port
, data
, length
);
1682 if (queued
< length
)
1683 dev_err(&port
->dev
, "%s - dropping data, %d bytes lost\n",
1684 __func__
, length
- queued
);
1685 tty_flip_buffer_push(&port
->port
);
1688 static void edge_bulk_out_callback(struct urb
*urb
)
1690 struct usb_serial_port
*port
= urb
->context
;
1691 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
1692 int status
= urb
->status
;
1693 struct tty_struct
*tty
;
1695 edge_port
->ep_write_urb_in_use
= 0;
1704 /* this urb is terminated, clean up */
1705 dev_dbg(&urb
->dev
->dev
, "%s - urb shutting down with status: %d\n",
1709 dev_err_console(port
, "%s - nonzero write bulk status "
1710 "received: %d\n", __func__
, status
);
1713 /* send any buffered data */
1714 tty
= tty_port_tty_get(&port
->port
);
1715 edge_send(port
, tty
);
1719 static int edge_open(struct tty_struct
*tty
, struct usb_serial_port
*port
)
1721 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
1722 struct edgeport_serial
*edge_serial
;
1723 struct usb_device
*dev
;
1728 u8 transaction_timeout
;
1730 if (edge_port
== NULL
)
1733 port_number
= port
->number
- port
->serial
->minor
;
1734 switch (port_number
) {
1736 edge_port
->uart_base
= UMPMEM_BASE_UART1
;
1737 edge_port
->dma_address
= UMPD_OEDB1_ADDRESS
;
1740 edge_port
->uart_base
= UMPMEM_BASE_UART2
;
1741 edge_port
->dma_address
= UMPD_OEDB2_ADDRESS
;
1744 dev_err(&port
->dev
, "Unknown port number!!!\n");
1748 dev_dbg(&port
->dev
, "%s - port_number = %d, uart_base = %04x, dma_address = %04x\n",
1749 __func__
, port_number
, edge_port
->uart_base
, edge_port
->dma_address
);
1751 dev
= port
->serial
->dev
;
1753 /* turn off loopback */
1754 status
= ti_do_config(edge_port
, UMPC_SET_CLR_LOOPBACK
, 0);
1757 "%s - cannot send clear loopback command, %d\n",
1762 /* set up the port settings */
1764 edge_set_termios(tty
, port
, &tty
->termios
);
1766 /* open up the port */
1768 /* milliseconds to timeout for DMA transfer */
1769 transaction_timeout
= 2;
1771 edge_port
->ump_read_timeout
=
1772 max(20, ((transaction_timeout
* 3) / 2));
1774 /* milliseconds to timeout for DMA transfer */
1775 open_settings
= (u8
)(UMP_DMA_MODE_CONTINOUS
|
1776 UMP_PIPE_TRANS_TIMEOUT_ENA
|
1777 (transaction_timeout
<< 2));
1779 dev_dbg(&port
->dev
, "%s - Sending UMPC_OPEN_PORT\n", __func__
);
1781 /* Tell TI to open and start the port */
1782 status
= send_cmd(dev
, UMPC_OPEN_PORT
,
1783 (u8
)(UMPM_UART1_PORT
+ port_number
), open_settings
, NULL
, 0);
1785 dev_err(&port
->dev
, "%s - cannot send open command, %d\n",
1790 /* Start the DMA? */
1791 status
= send_cmd(dev
, UMPC_START_PORT
,
1792 (u8
)(UMPM_UART1_PORT
+ port_number
), 0, NULL
, 0);
1794 dev_err(&port
->dev
, "%s - cannot send start DMA command, %d\n",
1799 /* Clear TX and RX buffers in UMP */
1800 status
= purge_port(port
, UMP_PORT_DIR_OUT
| UMP_PORT_DIR_IN
);
1803 "%s - cannot send clear buffers command, %d\n",
1808 /* Read Initial MSR */
1809 status
= ti_vread_sync(dev
, UMPC_READ_MSR
, 0,
1810 (__u16
)(UMPM_UART1_PORT
+ port_number
),
1811 &edge_port
->shadow_msr
, 1);
1813 dev_err(&port
->dev
, "%s - cannot send read MSR command, %d\n",
1818 dev_dbg(&port
->dev
, "ShadowMSR 0x%X\n", edge_port
->shadow_msr
);
1820 /* Set Initial MCR */
1821 edge_port
->shadow_mcr
= MCR_RTS
| MCR_DTR
;
1822 dev_dbg(&port
->dev
, "ShadowMCR 0x%X\n", edge_port
->shadow_mcr
);
1824 edge_serial
= edge_port
->edge_serial
;
1825 if (mutex_lock_interruptible(&edge_serial
->es_lock
))
1826 return -ERESTARTSYS
;
1827 if (edge_serial
->num_ports_open
== 0) {
1828 /* we are the first port to open, post the interrupt urb */
1829 urb
= edge_serial
->serial
->port
[0]->interrupt_in_urb
;
1832 "%s - no interrupt urb present, exiting\n",
1835 goto release_es_lock
;
1837 urb
->context
= edge_serial
;
1838 status
= usb_submit_urb(urb
, GFP_KERNEL
);
1841 "%s - usb_submit_urb failed with value %d\n",
1843 goto release_es_lock
;
1848 * reset the data toggle on the bulk endpoints to work around bug in
1849 * host controllers where things get out of sync some times
1851 usb_clear_halt(dev
, port
->write_urb
->pipe
);
1852 usb_clear_halt(dev
, port
->read_urb
->pipe
);
1854 /* start up our bulk read urb */
1855 urb
= port
->read_urb
;
1857 dev_err(&port
->dev
, "%s - no read urb present, exiting\n",
1860 goto unlink_int_urb
;
1862 edge_port
->ep_read_urb_state
= EDGE_READ_URB_RUNNING
;
1863 urb
->context
= edge_port
;
1864 status
= usb_submit_urb(urb
, GFP_KERNEL
);
1867 "%s - read bulk usb_submit_urb failed with value %d\n",
1869 goto unlink_int_urb
;
1872 ++edge_serial
->num_ports_open
;
1874 port
->port
.drain_delay
= 1;
1876 goto release_es_lock
;
1879 if (edge_port
->edge_serial
->num_ports_open
== 0)
1880 usb_kill_urb(port
->serial
->port
[0]->interrupt_in_urb
);
1882 mutex_unlock(&edge_serial
->es_lock
);
1886 static void edge_close(struct usb_serial_port
*port
)
1888 struct edgeport_serial
*edge_serial
;
1889 struct edgeport_port
*edge_port
;
1890 struct usb_serial
*serial
= port
->serial
;
1891 unsigned long flags
;
1894 edge_serial
= usb_get_serial_data(port
->serial
);
1895 edge_port
= usb_get_serial_port_data(port
);
1896 if (edge_serial
== NULL
|| edge_port
== NULL
)
1899 /* The bulkreadcompletion routine will check
1900 * this flag and dump add read data */
1901 edge_port
->close_pending
= 1;
1903 usb_kill_urb(port
->read_urb
);
1904 usb_kill_urb(port
->write_urb
);
1905 edge_port
->ep_write_urb_in_use
= 0;
1906 spin_lock_irqsave(&edge_port
->ep_lock
, flags
);
1907 kfifo_reset_out(&edge_port
->write_fifo
);
1908 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
1910 dev_dbg(&port
->dev
, "%s - send umpc_close_port\n", __func__
);
1911 port_number
= port
->number
- port
->serial
->minor
;
1912 send_cmd(serial
->dev
, UMPC_CLOSE_PORT
,
1913 (__u8
)(UMPM_UART1_PORT
+ port_number
), 0, NULL
, 0);
1915 mutex_lock(&edge_serial
->es_lock
);
1916 --edge_port
->edge_serial
->num_ports_open
;
1917 if (edge_port
->edge_serial
->num_ports_open
<= 0) {
1918 /* last port is now closed, let's shut down our interrupt urb */
1919 usb_kill_urb(port
->serial
->port
[0]->interrupt_in_urb
);
1920 edge_port
->edge_serial
->num_ports_open
= 0;
1922 mutex_unlock(&edge_serial
->es_lock
);
1923 edge_port
->close_pending
= 0;
1926 static int edge_write(struct tty_struct
*tty
, struct usb_serial_port
*port
,
1927 const unsigned char *data
, int count
)
1929 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
1932 dev_dbg(&port
->dev
, "%s - write request of 0 bytes\n", __func__
);
1936 if (edge_port
== NULL
)
1938 if (edge_port
->close_pending
== 1)
1941 count
= kfifo_in_locked(&edge_port
->write_fifo
, data
, count
,
1942 &edge_port
->ep_lock
);
1943 edge_send(port
, tty
);
1948 static void edge_send(struct usb_serial_port
*port
, struct tty_struct
*tty
)
1951 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
1952 unsigned long flags
;
1954 spin_lock_irqsave(&edge_port
->ep_lock
, flags
);
1956 if (edge_port
->ep_write_urb_in_use
) {
1957 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
1961 count
= kfifo_out(&edge_port
->write_fifo
,
1962 port
->write_urb
->transfer_buffer
,
1963 port
->bulk_out_size
);
1966 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
1970 edge_port
->ep_write_urb_in_use
= 1;
1972 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
1974 usb_serial_debug_data(&port
->dev
, __func__
, count
, port
->write_urb
->transfer_buffer
);
1976 /* set up our urb */
1977 port
->write_urb
->transfer_buffer_length
= count
;
1979 /* send the data out the bulk port */
1980 result
= usb_submit_urb(port
->write_urb
, GFP_ATOMIC
);
1982 dev_err_console(port
,
1983 "%s - failed submitting write urb, error %d\n",
1985 edge_port
->ep_write_urb_in_use
= 0;
1986 /* TODO: reschedule edge_send */
1988 edge_port
->port
->icount
.tx
+= count
;
1990 /* wakeup any process waiting for writes to complete */
1991 /* there is now more room in the buffer for new writes */
1996 static int edge_write_room(struct tty_struct
*tty
)
1998 struct usb_serial_port
*port
= tty
->driver_data
;
1999 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2001 unsigned long flags
;
2003 if (edge_port
== NULL
)
2005 if (edge_port
->close_pending
== 1)
2008 spin_lock_irqsave(&edge_port
->ep_lock
, flags
);
2009 room
= kfifo_avail(&edge_port
->write_fifo
);
2010 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
2012 dev_dbg(&port
->dev
, "%s - returns %d\n", __func__
, room
);
2016 static int edge_chars_in_buffer(struct tty_struct
*tty
)
2018 struct usb_serial_port
*port
= tty
->driver_data
;
2019 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2021 unsigned long flags
;
2022 if (edge_port
== NULL
)
2025 spin_lock_irqsave(&edge_port
->ep_lock
, flags
);
2026 chars
= kfifo_len(&edge_port
->write_fifo
);
2027 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
2029 dev_dbg(&port
->dev
, "%s - returns %d\n", __func__
, chars
);
2033 static bool edge_tx_empty(struct usb_serial_port
*port
)
2035 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2038 ret
= tx_active(edge_port
);
2045 static void edge_throttle(struct tty_struct
*tty
)
2047 struct usb_serial_port
*port
= tty
->driver_data
;
2048 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2051 if (edge_port
== NULL
)
2054 /* if we are implementing XON/XOFF, send the stop character */
2056 unsigned char stop_char
= STOP_CHAR(tty
);
2057 status
= edge_write(tty
, port
, &stop_char
, 1);
2059 dev_err(&port
->dev
, "%s - failed to write stop character, %d\n", __func__
, status
);
2063 /* if we are implementing RTS/CTS, stop reads */
2064 /* and the Edgeport will clear the RTS line */
2066 stop_read(edge_port
);
2070 static void edge_unthrottle(struct tty_struct
*tty
)
2072 struct usb_serial_port
*port
= tty
->driver_data
;
2073 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2076 if (edge_port
== NULL
)
2079 /* if we are implementing XON/XOFF, send the start character */
2081 unsigned char start_char
= START_CHAR(tty
);
2082 status
= edge_write(tty
, port
, &start_char
, 1);
2084 dev_err(&port
->dev
, "%s - failed to write start character, %d\n", __func__
, status
);
2087 /* if we are implementing RTS/CTS, restart reads */
2088 /* are the Edgeport will assert the RTS line */
2089 if (C_CRTSCTS(tty
)) {
2090 status
= restart_read(edge_port
);
2093 "%s - read bulk usb_submit_urb failed: %d\n",
2099 static void stop_read(struct edgeport_port
*edge_port
)
2101 unsigned long flags
;
2103 spin_lock_irqsave(&edge_port
->ep_lock
, flags
);
2105 if (edge_port
->ep_read_urb_state
== EDGE_READ_URB_RUNNING
)
2106 edge_port
->ep_read_urb_state
= EDGE_READ_URB_STOPPING
;
2107 edge_port
->shadow_mcr
&= ~MCR_RTS
;
2109 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
2112 static int restart_read(struct edgeport_port
*edge_port
)
2116 unsigned long flags
;
2118 spin_lock_irqsave(&edge_port
->ep_lock
, flags
);
2120 if (edge_port
->ep_read_urb_state
== EDGE_READ_URB_STOPPED
) {
2121 urb
= edge_port
->port
->read_urb
;
2122 status
= usb_submit_urb(urb
, GFP_ATOMIC
);
2124 edge_port
->ep_read_urb_state
= EDGE_READ_URB_RUNNING
;
2125 edge_port
->shadow_mcr
|= MCR_RTS
;
2127 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
2132 static void change_port_settings(struct tty_struct
*tty
,
2133 struct edgeport_port
*edge_port
, struct ktermios
*old_termios
)
2135 struct device
*dev
= &edge_port
->port
->dev
;
2136 struct ump_uart_config
*config
;
2140 int port_number
= edge_port
->port
->number
-
2141 edge_port
->port
->serial
->minor
;
2143 dev_dbg(dev
, "%s - port %d\n", __func__
, edge_port
->port
->number
);
2145 config
= kmalloc (sizeof (*config
), GFP_KERNEL
);
2147 tty
->termios
= *old_termios
;
2148 dev_err(dev
, "%s - out of memory\n", __func__
);
2152 cflag
= tty
->termios
.c_cflag
;
2156 /* These flags must be set */
2157 config
->wFlags
|= UMP_MASK_UART_FLAGS_RECEIVE_MS_INT
;
2158 config
->wFlags
|= UMP_MASK_UART_FLAGS_AUTO_START_ON_ERR
;
2159 config
->bUartMode
= (__u8
)(edge_port
->bUartMode
);
2161 switch (cflag
& CSIZE
) {
2163 config
->bDataBits
= UMP_UART_CHAR5BITS
;
2164 dev_dbg(dev
, "%s - data bits = 5\n", __func__
);
2167 config
->bDataBits
= UMP_UART_CHAR6BITS
;
2168 dev_dbg(dev
, "%s - data bits = 6\n", __func__
);
2171 config
->bDataBits
= UMP_UART_CHAR7BITS
;
2172 dev_dbg(dev
, "%s - data bits = 7\n", __func__
);
2176 config
->bDataBits
= UMP_UART_CHAR8BITS
;
2177 dev_dbg(dev
, "%s - data bits = 8\n", __func__
);
2181 if (cflag
& PARENB
) {
2182 if (cflag
& PARODD
) {
2183 config
->wFlags
|= UMP_MASK_UART_FLAGS_PARITY
;
2184 config
->bParity
= UMP_UART_ODDPARITY
;
2185 dev_dbg(dev
, "%s - parity = odd\n", __func__
);
2187 config
->wFlags
|= UMP_MASK_UART_FLAGS_PARITY
;
2188 config
->bParity
= UMP_UART_EVENPARITY
;
2189 dev_dbg(dev
, "%s - parity = even\n", __func__
);
2192 config
->bParity
= UMP_UART_NOPARITY
;
2193 dev_dbg(dev
, "%s - parity = none\n", __func__
);
2196 if (cflag
& CSTOPB
) {
2197 config
->bStopBits
= UMP_UART_STOPBIT2
;
2198 dev_dbg(dev
, "%s - stop bits = 2\n", __func__
);
2200 config
->bStopBits
= UMP_UART_STOPBIT1
;
2201 dev_dbg(dev
, "%s - stop bits = 1\n", __func__
);
2204 /* figure out the flow control settings */
2205 if (cflag
& CRTSCTS
) {
2206 config
->wFlags
|= UMP_MASK_UART_FLAGS_OUT_X_CTS_FLOW
;
2207 config
->wFlags
|= UMP_MASK_UART_FLAGS_RTS_FLOW
;
2208 dev_dbg(dev
, "%s - RTS/CTS is enabled\n", __func__
);
2210 dev_dbg(dev
, "%s - RTS/CTS is disabled\n", __func__
);
2211 tty
->hw_stopped
= 0;
2212 restart_read(edge_port
);
2215 /* if we are implementing XON/XOFF, set the start and stop
2216 character in the device */
2217 config
->cXon
= START_CHAR(tty
);
2218 config
->cXoff
= STOP_CHAR(tty
);
2220 /* if we are implementing INBOUND XON/XOFF */
2222 config
->wFlags
|= UMP_MASK_UART_FLAGS_IN_X
;
2223 dev_dbg(dev
, "%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n",
2224 __func__
, config
->cXon
, config
->cXoff
);
2226 dev_dbg(dev
, "%s - INBOUND XON/XOFF is disabled\n", __func__
);
2228 /* if we are implementing OUTBOUND XON/XOFF */
2230 config
->wFlags
|= UMP_MASK_UART_FLAGS_OUT_X
;
2231 dev_dbg(dev
, "%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n",
2232 __func__
, config
->cXon
, config
->cXoff
);
2234 dev_dbg(dev
, "%s - OUTBOUND XON/XOFF is disabled\n", __func__
);
2236 tty
->termios
.c_cflag
&= ~CMSPAR
;
2238 /* Round the baud rate */
2239 baud
= tty_get_baud_rate(tty
);
2241 /* pick a default, any default... */
2244 tty_encode_baud_rate(tty
, baud
, baud
);
2246 edge_port
->baud_rate
= baud
;
2247 config
->wBaudRate
= (__u16
)((461550L + baud
/2) / baud
);
2249 /* FIXME: Recompute actual baud from divisor here */
2251 dev_dbg(dev
, "%s - baud rate = %d, wBaudRate = %d\n", __func__
, baud
, config
->wBaudRate
);
2253 dev_dbg(dev
, "wBaudRate: %d\n", (int)(461550L / config
->wBaudRate
));
2254 dev_dbg(dev
, "wFlags: 0x%x\n", config
->wFlags
);
2255 dev_dbg(dev
, "bDataBits: %d\n", config
->bDataBits
);
2256 dev_dbg(dev
, "bParity: %d\n", config
->bParity
);
2257 dev_dbg(dev
, "bStopBits: %d\n", config
->bStopBits
);
2258 dev_dbg(dev
, "cXon: %d\n", config
->cXon
);
2259 dev_dbg(dev
, "cXoff: %d\n", config
->cXoff
);
2260 dev_dbg(dev
, "bUartMode: %d\n", config
->bUartMode
);
2262 /* move the word values into big endian mode */
2263 cpu_to_be16s(&config
->wFlags
);
2264 cpu_to_be16s(&config
->wBaudRate
);
2266 status
= send_cmd(edge_port
->port
->serial
->dev
, UMPC_SET_CONFIG
,
2267 (__u8
)(UMPM_UART1_PORT
+ port_number
),
2268 0, (__u8
*)config
, sizeof(*config
));
2270 dev_dbg(dev
, "%s - error %d when trying to write config to device\n",
2275 static void edge_set_termios(struct tty_struct
*tty
,
2276 struct usb_serial_port
*port
, struct ktermios
*old_termios
)
2278 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2281 cflag
= tty
->termios
.c_cflag
;
2283 dev_dbg(&port
->dev
, "%s - clfag %08x iflag %08x\n", __func__
,
2284 tty
->termios
.c_cflag
, tty
->termios
.c_iflag
);
2285 dev_dbg(&port
->dev
, "%s - old clfag %08x old iflag %08x\n", __func__
,
2286 old_termios
->c_cflag
, old_termios
->c_iflag
);
2287 dev_dbg(&port
->dev
, "%s - port %d\n", __func__
, port
->number
);
2289 if (edge_port
== NULL
)
2291 /* change the port settings to the new ones specified */
2292 change_port_settings(tty
, edge_port
, old_termios
);
2295 static int edge_tiocmset(struct tty_struct
*tty
,
2296 unsigned int set
, unsigned int clear
)
2298 struct usb_serial_port
*port
= tty
->driver_data
;
2299 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2301 unsigned long flags
;
2303 spin_lock_irqsave(&edge_port
->ep_lock
, flags
);
2304 mcr
= edge_port
->shadow_mcr
;
2305 if (set
& TIOCM_RTS
)
2307 if (set
& TIOCM_DTR
)
2309 if (set
& TIOCM_LOOP
)
2310 mcr
|= MCR_LOOPBACK
;
2312 if (clear
& TIOCM_RTS
)
2314 if (clear
& TIOCM_DTR
)
2316 if (clear
& TIOCM_LOOP
)
2317 mcr
&= ~MCR_LOOPBACK
;
2319 edge_port
->shadow_mcr
= mcr
;
2320 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
2322 restore_mcr(edge_port
, mcr
);
2326 static int edge_tiocmget(struct tty_struct
*tty
)
2328 struct usb_serial_port
*port
= tty
->driver_data
;
2329 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2330 unsigned int result
= 0;
2333 unsigned long flags
;
2335 spin_lock_irqsave(&edge_port
->ep_lock
, flags
);
2337 msr
= edge_port
->shadow_msr
;
2338 mcr
= edge_port
->shadow_mcr
;
2339 result
= ((mcr
& MCR_DTR
) ? TIOCM_DTR
: 0) /* 0x002 */
2340 | ((mcr
& MCR_RTS
) ? TIOCM_RTS
: 0) /* 0x004 */
2341 | ((msr
& EDGEPORT_MSR_CTS
) ? TIOCM_CTS
: 0) /* 0x020 */
2342 | ((msr
& EDGEPORT_MSR_CD
) ? TIOCM_CAR
: 0) /* 0x040 */
2343 | ((msr
& EDGEPORT_MSR_RI
) ? TIOCM_RI
: 0) /* 0x080 */
2344 | ((msr
& EDGEPORT_MSR_DSR
) ? TIOCM_DSR
: 0); /* 0x100 */
2347 dev_dbg(&port
->dev
, "%s -- %x\n", __func__
, result
);
2348 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
2353 static int get_serial_info(struct edgeport_port
*edge_port
,
2354 struct serial_struct __user
*retinfo
)
2356 struct serial_struct tmp
;
2362 cwait
= edge_port
->port
->port
.closing_wait
;
2363 if (cwait
!= ASYNC_CLOSING_WAIT_NONE
)
2364 cwait
= jiffies_to_msecs(cwait
) / 10;
2366 memset(&tmp
, 0, sizeof(tmp
));
2368 tmp
.type
= PORT_16550A
;
2369 tmp
.line
= edge_port
->port
->serial
->minor
;
2370 tmp
.port
= edge_port
->port
->number
;
2372 tmp
.flags
= ASYNC_SKIP_TEST
| ASYNC_AUTO_IRQ
;
2373 tmp
.xmit_fifo_size
= edge_port
->port
->bulk_out_size
;
2374 tmp
.baud_base
= 9600;
2375 tmp
.close_delay
= 5*HZ
;
2376 tmp
.closing_wait
= cwait
;
2378 if (copy_to_user(retinfo
, &tmp
, sizeof(*retinfo
)))
2383 static int edge_ioctl(struct tty_struct
*tty
,
2384 unsigned int cmd
, unsigned long arg
)
2386 struct usb_serial_port
*port
= tty
->driver_data
;
2387 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2389 dev_dbg(&port
->dev
, "%s - port %d, cmd = 0x%x\n", __func__
, port
->number
, cmd
);
2393 dev_dbg(&port
->dev
, "%s - TIOCGSERIAL\n", __func__
);
2394 return get_serial_info(edge_port
,
2395 (struct serial_struct __user
*) arg
);
2397 return -ENOIOCTLCMD
;
2400 static void edge_break(struct tty_struct
*tty
, int break_state
)
2402 struct usb_serial_port
*port
= tty
->driver_data
;
2403 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2405 int bv
= 0; /* Off */
2407 if (break_state
== -1)
2409 status
= ti_do_config(edge_port
, UMPC_SET_CLR_BREAK
, bv
);
2411 dev_dbg(&port
->dev
, "%s - error %d sending break set/clear command.\n",
2415 static int edge_startup(struct usb_serial
*serial
)
2417 struct edgeport_serial
*edge_serial
;
2420 /* create our private serial structure */
2421 edge_serial
= kzalloc(sizeof(struct edgeport_serial
), GFP_KERNEL
);
2422 if (edge_serial
== NULL
) {
2423 dev_err(&serial
->dev
->dev
, "%s - Out of memory\n", __func__
);
2426 mutex_init(&edge_serial
->es_lock
);
2427 edge_serial
->serial
= serial
;
2428 usb_set_serial_data(serial
, edge_serial
);
2430 status
= download_fw(edge_serial
);
2439 static void edge_disconnect(struct usb_serial
*serial
)
2443 static void edge_release(struct usb_serial
*serial
)
2445 kfree(usb_get_serial_data(serial
));
2448 static int edge_port_probe(struct usb_serial_port
*port
)
2450 struct edgeport_port
*edge_port
;
2453 edge_port
= kzalloc(sizeof(*edge_port
), GFP_KERNEL
);
2457 ret
= kfifo_alloc(&edge_port
->write_fifo
, EDGE_OUT_BUF_SIZE
,
2464 spin_lock_init(&edge_port
->ep_lock
);
2465 edge_port
->port
= port
;
2466 edge_port
->edge_serial
= usb_get_serial_data(port
->serial
);
2467 edge_port
->bUartMode
= default_uart_mode
;
2469 usb_set_serial_port_data(port
, edge_port
);
2471 ret
= edge_create_sysfs_attrs(port
);
2473 kfifo_free(&edge_port
->write_fifo
);
2478 port
->port
.closing_wait
= msecs_to_jiffies(closing_wait
* 10);
2483 static int edge_port_remove(struct usb_serial_port
*port
)
2485 struct edgeport_port
*edge_port
;
2487 edge_port
= usb_get_serial_port_data(port
);
2488 edge_remove_sysfs_attrs(port
);
2489 kfifo_free(&edge_port
->write_fifo
);
2495 /* Sysfs Attributes */
2497 static ssize_t
show_uart_mode(struct device
*dev
,
2498 struct device_attribute
*attr
, char *buf
)
2500 struct usb_serial_port
*port
= to_usb_serial_port(dev
);
2501 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2503 return sprintf(buf
, "%d\n", edge_port
->bUartMode
);
2506 static ssize_t
store_uart_mode(struct device
*dev
,
2507 struct device_attribute
*attr
, const char *valbuf
, size_t count
)
2509 struct usb_serial_port
*port
= to_usb_serial_port(dev
);
2510 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2511 unsigned int v
= simple_strtoul(valbuf
, NULL
, 0);
2513 dev_dbg(dev
, "%s: setting uart_mode = %d\n", __func__
, v
);
2516 edge_port
->bUartMode
= v
;
2518 dev_err(dev
, "%s - uart_mode %d is invalid\n", __func__
, v
);
2523 static DEVICE_ATTR(uart_mode
, S_IWUSR
| S_IRUGO
, show_uart_mode
,
2526 static int edge_create_sysfs_attrs(struct usb_serial_port
*port
)
2528 return device_create_file(&port
->dev
, &dev_attr_uart_mode
);
2531 static int edge_remove_sysfs_attrs(struct usb_serial_port
*port
)
2533 device_remove_file(&port
->dev
, &dev_attr_uart_mode
);
2538 static struct usb_serial_driver edgeport_1port_device
= {
2540 .owner
= THIS_MODULE
,
2541 .name
= "edgeport_ti_1",
2543 .description
= "Edgeport TI 1 port adapter",
2544 .id_table
= edgeport_1port_id_table
,
2547 .close
= edge_close
,
2548 .throttle
= edge_throttle
,
2549 .unthrottle
= edge_unthrottle
,
2550 .attach
= edge_startup
,
2551 .disconnect
= edge_disconnect
,
2552 .release
= edge_release
,
2553 .port_probe
= edge_port_probe
,
2554 .port_remove
= edge_port_remove
,
2555 .ioctl
= edge_ioctl
,
2556 .set_termios
= edge_set_termios
,
2557 .tiocmget
= edge_tiocmget
,
2558 .tiocmset
= edge_tiocmset
,
2559 .tiocmiwait
= usb_serial_generic_tiocmiwait
,
2560 .get_icount
= usb_serial_generic_get_icount
,
2561 .write
= edge_write
,
2562 .write_room
= edge_write_room
,
2563 .chars_in_buffer
= edge_chars_in_buffer
,
2564 .tx_empty
= edge_tx_empty
,
2565 .break_ctl
= edge_break
,
2566 .read_int_callback
= edge_interrupt_callback
,
2567 .read_bulk_callback
= edge_bulk_in_callback
,
2568 .write_bulk_callback
= edge_bulk_out_callback
,
2571 static struct usb_serial_driver edgeport_2port_device
= {
2573 .owner
= THIS_MODULE
,
2574 .name
= "edgeport_ti_2",
2576 .description
= "Edgeport TI 2 port adapter",
2577 .id_table
= edgeport_2port_id_table
,
2580 .close
= edge_close
,
2581 .throttle
= edge_throttle
,
2582 .unthrottle
= edge_unthrottle
,
2583 .attach
= edge_startup
,
2584 .disconnect
= edge_disconnect
,
2585 .release
= edge_release
,
2586 .port_probe
= edge_port_probe
,
2587 .port_remove
= edge_port_remove
,
2588 .ioctl
= edge_ioctl
,
2589 .set_termios
= edge_set_termios
,
2590 .tiocmget
= edge_tiocmget
,
2591 .tiocmset
= edge_tiocmset
,
2592 .tiocmiwait
= usb_serial_generic_tiocmiwait
,
2593 .get_icount
= usb_serial_generic_get_icount
,
2594 .write
= edge_write
,
2595 .write_room
= edge_write_room
,
2596 .chars_in_buffer
= edge_chars_in_buffer
,
2597 .tx_empty
= edge_tx_empty
,
2598 .break_ctl
= edge_break
,
2599 .read_int_callback
= edge_interrupt_callback
,
2600 .read_bulk_callback
= edge_bulk_in_callback
,
2601 .write_bulk_callback
= edge_bulk_out_callback
,
2604 static struct usb_serial_driver
* const serial_drivers
[] = {
2605 &edgeport_1port_device
, &edgeport_2port_device
, NULL
2608 module_usb_serial_driver(serial_drivers
, id_table_combined
);
2610 MODULE_AUTHOR(DRIVER_AUTHOR
);
2611 MODULE_DESCRIPTION(DRIVER_DESC
);
2612 MODULE_LICENSE("GPL");
2613 MODULE_FIRMWARE("edgeport/down3.bin");
2615 module_param(closing_wait
, int, S_IRUGO
| S_IWUSR
);
2616 MODULE_PARM_DESC(closing_wait
, "Maximum wait for data to drain, in .01 secs");
2618 module_param(ignore_cpu_rev
, bool, S_IRUGO
| S_IWUSR
);
2619 MODULE_PARM_DESC(ignore_cpu_rev
,
2620 "Ignore the cpu revision when connecting to a device");
2622 module_param(default_uart_mode
, int, S_IRUGO
| S_IWUSR
);
2623 MODULE_PARM_DESC(default_uart_mode
, "Default uart_mode, 0=RS232, ...");