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PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / usb / serial / io_ti.c
bloba2db5be9c30534ceae25eb262bde00242a152e2d
1 /*
2 * Edgeport USB Serial Converter driver
3 *
4 * Copyright (C) 2000-2002 Inside Out Networks, All rights reserved.
5 * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * Supports the following devices:
13 * EP/1 EP/2 EP/4 EP/21 EP/22 EP/221 EP/42 EP/421 WATCHPORT
14 *
15 * For questions or problems with this driver, contact Inside Out
16 * Networks technical support, or Peter Berger <pberger@brimson.com>,
17 * or Al Borchers <alborchers@steinerpoint.com>.
18 */
19
20 #include <linux/kernel.h>
21 #include <linux/jiffies.h>
22 #include <linux/errno.h>
23 #include <linux/slab.h>
24 #include <linux/tty.h>
25 #include <linux/tty_driver.h>
26 #include <linux/tty_flip.h>
27 #include <linux/module.h>
28 #include <linux/spinlock.h>
29 #include <linux/mutex.h>
30 #include <linux/serial.h>
31 #include <linux/kfifo.h>
32 #include <linux/ioctl.h>
33 #include <linux/firmware.h>
34 #include <linux/uaccess.h>
35 #include <linux/usb.h>
36 #include <linux/usb/serial.h>
37
38 #include "io_16654.h"
39 #include "io_usbvend.h"
40 #include "io_ti.h"
41
42 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com> and David Iacovelli"
43 #define DRIVER_DESC "Edgeport USB Serial Driver"
44
45 #define EPROM_PAGE_SIZE 64
46
47
48 /* different hardware types */
49 #define HARDWARE_TYPE_930 0
50 #define HARDWARE_TYPE_TIUMP 1
51
52 /* IOCTL_PRIVATE_TI_GET_MODE Definitions */
53 #define TI_MODE_CONFIGURING 0 /* Device has not entered start device */
54 #define TI_MODE_BOOT 1 /* Staying in boot mode */
55 #define TI_MODE_DOWNLOAD 2 /* Made it to download mode */
56 #define TI_MODE_TRANSITIONING 3 /* Currently in boot mode but
57 transitioning to download mode */
58
59 /* read urb state */
60 #define EDGE_READ_URB_RUNNING 0
61 #define EDGE_READ_URB_STOPPING 1
62 #define EDGE_READ_URB_STOPPED 2
63
64 #define EDGE_CLOSING_WAIT 4000 /* in .01 sec */
65
66
67 /* Product information read from the Edgeport */
68 struct product_info {
69 int TiMode; /* Current TI Mode */
70 __u8 hardware_type; /* Type of hardware */
71 } __attribute__((packed));
72
73 struct edgeport_port {
74 __u16 uart_base;
75 __u16 dma_address;
76 __u8 shadow_msr;
77 __u8 shadow_mcr;
78 __u8 shadow_lsr;
79 __u8 lsr_mask;
80 __u32 ump_read_timeout; /* Number of milliseconds the UMP will
81 wait without data before completing
82 a read short */
83 int baud_rate;
84 int close_pending;
85 int lsr_event;
86
87 struct edgeport_serial *edge_serial;
88 struct usb_serial_port *port;
89 __u8 bUartMode; /* Port type, 0: RS232, etc. */
90 spinlock_t ep_lock;
91 int ep_read_urb_state;
92 int ep_write_urb_in_use;
93 };
94
95 struct edgeport_serial {
96 struct product_info product_info;
97 u8 TI_I2C_Type; /* Type of I2C in UMP */
98 u8 TiReadI2C; /* Set to TRUE if we have read the
99 I2c in Boot Mode */
100 struct mutex es_lock;
101 int num_ports_open;
102 struct usb_serial *serial;
103 };
104
105
106 /* Devices that this driver supports */
107 static const struct usb_device_id edgeport_1port_id_table[] = {
108 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) },
109 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) },
110 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) },
111 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) },
112 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) },
113 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) },
114 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) },
115 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) },
116 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) },
117 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) },
118 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) },
119 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) },
120 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) },
121 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) },
122 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) },
123 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) },
124 { }
125 };
126
127 static const struct usb_device_id edgeport_2port_id_table[] = {
128 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) },
129 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) },
130 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) },
131 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) },
132 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) },
133 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) },
134 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) },
135 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) },
136 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) },
137 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) },
138 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) },
139 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) },
140 /* The 4, 8 and 16 port devices show up as multiple 2 port devices */
141 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) },
142 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) },
143 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) },
144 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) },
145 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) },
146 { }
147 };
148
149 /* Devices that this driver supports */
150 static const struct usb_device_id id_table_combined[] = {
151 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) },
152 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) },
153 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) },
154 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) },
155 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) },
156 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) },
157 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) },
158 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) },
159 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) },
160 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) },
161 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) },
162 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) },
163 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) },
164 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) },
165 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) },
166 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) },
167 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) },
168 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) },
169 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) },
170 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) },
171 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) },
172 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) },
173 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) },
174 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) },
175 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) },
176 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) },
177 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) },
178 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) },
179 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) },
180 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) },
181 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) },
182 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) },
183 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) },
184 { }
185 };
186
187 MODULE_DEVICE_TABLE(usb, id_table_combined);
188
189 static unsigned char OperationalMajorVersion;
190 static unsigned char OperationalMinorVersion;
191 static unsigned short OperationalBuildNumber;
192
193 static int closing_wait = EDGE_CLOSING_WAIT;
194 static bool ignore_cpu_rev;
195 static int default_uart_mode; /* RS232 */
196
197 static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data,
198 int length);
199
200 static void stop_read(struct edgeport_port *edge_port);
201 static int restart_read(struct edgeport_port *edge_port);
202
203 static void edge_set_termios(struct tty_struct *tty,
204 struct usb_serial_port *port, struct ktermios *old_termios);
205 static void edge_send(struct usb_serial_port *port, struct tty_struct *tty);
206
207 /* sysfs attributes */
208 static int edge_create_sysfs_attrs(struct usb_serial_port *port);
209 static int edge_remove_sysfs_attrs(struct usb_serial_port *port);
210
211
212 static int ti_vread_sync(struct usb_device *dev, __u8 request,
213 __u16 value, __u16 index, u8 *data, int size)
214 {
215 int status;
216
217 status = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request,
218 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN),
219 value, index, data, size, 1000);
220 if (status < 0)
221 return status;
222 if (status != size) {
223 dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n",
224 __func__, size, status);
225 return -ECOMM;
226 }
227 return 0;
228 }
229
230 static int ti_vsend_sync(struct usb_device *dev, __u8 request,
231 __u16 value, __u16 index, u8 *data, int size)
232 {
233 int status;
234
235 status = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,
236 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT),
237 value, index, data, size, 1000);
238 if (status < 0)
239 return status;
240 if (status != size) {
241 dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n",
242 __func__, size, status);
243 return -ECOMM;
244 }
245 return 0;
246 }
247
248 static int send_cmd(struct usb_device *dev, __u8 command,
249 __u8 moduleid, __u16 value, u8 *data,
250 int size)
251 {
252 return ti_vsend_sync(dev, command, value, moduleid, data, size);
253 }
254
255 /* clear tx/rx buffers and fifo in TI UMP */
256 static int purge_port(struct usb_serial_port *port, __u16 mask)
257 {
258 int port_number = port->port_number;
259
260 dev_dbg(&port->dev, "%s - port %d, mask %x\n", __func__, port_number, mask);
261
262 return send_cmd(port->serial->dev,
263 UMPC_PURGE_PORT,
264 (__u8)(UMPM_UART1_PORT + port_number),
265 mask,
266 NULL,
267 0);
268 }
269
270 /**
271 * read_download_mem - Read edgeport memory from TI chip
272 * @dev: usb device pointer
273 * @start_address: Device CPU address at which to read
274 * @length: Length of above data
275 * @address_type: Can read both XDATA and I2C
276 * @buffer: pointer to input data buffer
277 */
278 static int read_download_mem(struct usb_device *dev, int start_address,
279 int length, __u8 address_type, __u8 *buffer)
280 {
281 int status = 0;
282 __u8 read_length;
283 __be16 be_start_address;
284
285 dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, length);
286
287 /* Read in blocks of 64 bytes
288 * (TI firmware can't handle more than 64 byte reads)
289 */
290 while (length) {
291 if (length > 64)
292 read_length = 64;
293 else
294 read_length = (__u8)length;
295
296 if (read_length > 1) {
297 dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, read_length);
298 }
299 be_start_address = cpu_to_be16(start_address);
300 status = ti_vread_sync(dev, UMPC_MEMORY_READ,
301 (__u16)address_type,
302 (__force __u16)be_start_address,
303 buffer, read_length);
304
305 if (status) {
306 dev_dbg(&dev->dev, "%s - ERROR %x\n", __func__, status);
307 return status;
308 }
309
310 if (read_length > 1)
311 usb_serial_debug_data(&dev->dev, __func__, read_length, buffer);
312
313 /* Update pointers/length */
314 start_address += read_length;
315 buffer += read_length;
316 length -= read_length;
317 }
318
319 return status;
320 }
321
322 static int read_ram(struct usb_device *dev, int start_address,
323 int length, __u8 *buffer)
324 {
325 return read_download_mem(dev, start_address, length,
326 DTK_ADDR_SPACE_XDATA, buffer);
327 }
328
329 /* Read edgeport memory to a given block */
330 static int read_boot_mem(struct edgeport_serial *serial,
331 int start_address, int length, __u8 *buffer)
332 {
333 int status = 0;
334 int i;
335
336 for (i = 0; i < length; i++) {
337 status = ti_vread_sync(serial->serial->dev,
338 UMPC_MEMORY_READ, serial->TI_I2C_Type,
339 (__u16)(start_address+i), &buffer[i], 0x01);
340 if (status) {
341 dev_dbg(&serial->serial->dev->dev, "%s - ERROR %x\n", __func__, status);
342 return status;
343 }
344 }
345
346 dev_dbg(&serial->serial->dev->dev, "%s - start_address = %x, length = %d\n",
347 __func__, start_address, length);
348 usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer);
349
350 serial->TiReadI2C = 1;
351
352 return status;
353 }
354
355 /* Write given block to TI EPROM memory */
356 static int write_boot_mem(struct edgeport_serial *serial,
357 int start_address, int length, __u8 *buffer)
358 {
359 int status = 0;
360 int i;
361 u8 *temp;
362
363 /* Must do a read before write */
364 if (!serial->TiReadI2C) {
365 temp = kmalloc(1, GFP_KERNEL);
366 if (!temp)
367 return -ENOMEM;
368
369 status = read_boot_mem(serial, 0, 1, temp);
370 kfree(temp);
371 if (status)
372 return status;
373 }
374
375 for (i = 0; i < length; ++i) {
376 status = ti_vsend_sync(serial->serial->dev,
377 UMPC_MEMORY_WRITE, buffer[i],
378 (__u16)(i + start_address), NULL, 0);
379 if (status)
380 return status;
381 }
382
383 dev_dbg(&serial->serial->dev->dev, "%s - start_sddr = %x, length = %d\n", __func__, start_address, length);
384 usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer);
385
386 return status;
387 }
388
389
390 /* Write edgeport I2C memory to TI chip */
391 static int write_i2c_mem(struct edgeport_serial *serial,
392 int start_address, int length, __u8 address_type, __u8 *buffer)
393 {
394 struct device *dev = &serial->serial->dev->dev;
395 int status = 0;
396 int write_length;
397 __be16 be_start_address;
398
399 /* We can only send a maximum of 1 aligned byte page at a time */
400
401 /* calculate the number of bytes left in the first page */
402 write_length = EPROM_PAGE_SIZE -
403 (start_address & (EPROM_PAGE_SIZE - 1));
404
405 if (write_length > length)
406 write_length = length;
407
408 dev_dbg(dev, "%s - BytesInFirstPage Addr = %x, length = %d\n",
409 __func__, start_address, write_length);
410 usb_serial_debug_data(dev, __func__, write_length, buffer);
411
412 /* Write first page */
413 be_start_address = cpu_to_be16(start_address);
414 status = ti_vsend_sync(serial->serial->dev,
415 UMPC_MEMORY_WRITE, (__u16)address_type,
416 (__force __u16)be_start_address,
417 buffer, write_length);
418 if (status) {
419 dev_dbg(dev, "%s - ERROR %d\n", __func__, status);
420 return status;
421 }
422
423 length -= write_length;
424 start_address += write_length;
425 buffer += write_length;
426
427 /* We should be aligned now -- can write
428 max page size bytes at a time */
429 while (length) {
430 if (length > EPROM_PAGE_SIZE)
431 write_length = EPROM_PAGE_SIZE;
432 else
433 write_length = length;
434
435 dev_dbg(dev, "%s - Page Write Addr = %x, length = %d\n",
436 __func__, start_address, write_length);
437 usb_serial_debug_data(dev, __func__, write_length, buffer);
438
439 /* Write next page */
440 be_start_address = cpu_to_be16(start_address);
441 status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE,
442 (__u16)address_type,
443 (__force __u16)be_start_address,
444 buffer, write_length);
445 if (status) {
446 dev_err(dev, "%s - ERROR %d\n", __func__, status);
447 return status;
448 }
449
450 length -= write_length;
451 start_address += write_length;
452 buffer += write_length;
453 }
454 return status;
455 }
456
457 /* Examine the UMP DMA registers and LSR
458 *
459 * Check the MSBit of the X and Y DMA byte count registers.
460 * A zero in this bit indicates that the TX DMA buffers are empty
461 * then check the TX Empty bit in the UART.
462 */
463 static int tx_active(struct edgeport_port *port)
464 {
465 int status;
466 struct out_endpoint_desc_block *oedb;
467 __u8 *lsr;
468 int bytes_left = 0;
469
470 oedb = kmalloc(sizeof(*oedb), GFP_KERNEL);
471 if (!oedb)
472 return -ENOMEM;
473
474 lsr = kmalloc(1, GFP_KERNEL); /* Sigh, that's right, just one byte,
475 as not all platforms can do DMA
476 from stack */
477 if (!lsr) {
478 kfree(oedb);
479 return -ENOMEM;
480 }
481 /* Read the DMA Count Registers */
482 status = read_ram(port->port->serial->dev, port->dma_address,
483 sizeof(*oedb), (void *)oedb);
484 if (status)
485 goto exit_is_tx_active;
486
487 dev_dbg(&port->port->dev, "%s - XByteCount 0x%X\n", __func__, oedb->XByteCount);
488
489 /* and the LSR */
490 status = read_ram(port->port->serial->dev,
491 port->uart_base + UMPMEM_OFFS_UART_LSR, 1, lsr);
492
493 if (status)
494 goto exit_is_tx_active;
495 dev_dbg(&port->port->dev, "%s - LSR = 0x%X\n", __func__, *lsr);
496
497 /* If either buffer has data or we are transmitting then return TRUE */
498 if ((oedb->XByteCount & 0x80) != 0)
499 bytes_left += 64;
500
501 if ((*lsr & UMP_UART_LSR_TX_MASK) == 0)
502 bytes_left += 1;
503
504 /* We return Not Active if we get any kind of error */
505 exit_is_tx_active:
506 dev_dbg(&port->port->dev, "%s - return %d\n", __func__, bytes_left);
507
508 kfree(lsr);
509 kfree(oedb);
510 return bytes_left;
511 }
512
513 static int choose_config(struct usb_device *dev)
514 {
515 /*
516 * There may be multiple configurations on this device, in which case
517 * we would need to read and parse all of them to find out which one
518 * we want. However, we just support one config at this point,
519 * configuration # 1, which is Config Descriptor 0.
520 */
521
522 dev_dbg(&dev->dev, "%s - Number of Interfaces = %d\n",
523 __func__, dev->config->desc.bNumInterfaces);
524 dev_dbg(&dev->dev, "%s - MAX Power = %d\n",
525 __func__, dev->config->desc.bMaxPower * 2);
526
527 if (dev->config->desc.bNumInterfaces != 1) {
528 dev_err(&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n", __func__);
529 return -ENODEV;
530 }
531
532 return 0;
533 }
534
535 static int read_rom(struct edgeport_serial *serial,
536 int start_address, int length, __u8 *buffer)
537 {
538 int status;
539
540 if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) {
541 status = read_download_mem(serial->serial->dev,
542 start_address,
543 length,
544 serial->TI_I2C_Type,
545 buffer);
546 } else {
547 status = read_boot_mem(serial, start_address, length,
548 buffer);
549 }
550 return status;
551 }
552
553 static int write_rom(struct edgeport_serial *serial, int start_address,
554 int length, __u8 *buffer)
555 {
556 if (serial->product_info.TiMode == TI_MODE_BOOT)
557 return write_boot_mem(serial, start_address, length,
558 buffer);
559
560 if (serial->product_info.TiMode == TI_MODE_DOWNLOAD)
561 return write_i2c_mem(serial, start_address, length,
562 serial->TI_I2C_Type, buffer);
563 return -EINVAL;
564 }
565
566
567
568 /* Read a descriptor header from I2C based on type */
569 static int get_descriptor_addr(struct edgeport_serial *serial,
570 int desc_type, struct ti_i2c_desc *rom_desc)
571 {
572 int start_address;
573 int status;
574
575 /* Search for requested descriptor in I2C */
576 start_address = 2;
577 do {
578 status = read_rom(serial,
579 start_address,
580 sizeof(struct ti_i2c_desc),
581 (__u8 *)rom_desc);
582 if (status)
583 return 0;
584
585 if (rom_desc->Type == desc_type)
586 return start_address;
587
588 start_address = start_address + sizeof(struct ti_i2c_desc)
589 + rom_desc->Size;
590
591 } while ((start_address < TI_MAX_I2C_SIZE) && rom_desc->Type);
592
593 return 0;
594 }
595
596 /* Validate descriptor checksum */
597 static int valid_csum(struct ti_i2c_desc *rom_desc, __u8 *buffer)
598 {
599 __u16 i;
600 __u8 cs = 0;
601
602 for (i = 0; i < rom_desc->Size; i++)
603 cs = (__u8)(cs + buffer[i]);
604
605 if (cs != rom_desc->CheckSum) {
606 pr_debug("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs);
607 return -EINVAL;
608 }
609 return 0;
610 }
611
612 /* Make sure that the I2C image is good */
613 static int check_i2c_image(struct edgeport_serial *serial)
614 {
615 struct device *dev = &serial->serial->dev->dev;
616 int status = 0;
617 struct ti_i2c_desc *rom_desc;
618 int start_address = 2;
619 __u8 *buffer;
620 __u16 ttype;
621
622 rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
623 if (!rom_desc)
624 return -ENOMEM;
625
626 buffer = kmalloc(TI_MAX_I2C_SIZE, GFP_KERNEL);
627 if (!buffer) {
628 kfree(rom_desc);
629 return -ENOMEM;
630 }
631
632 /* Read the first byte (Signature0) must be 0x52 or 0x10 */
633 status = read_rom(serial, 0, 1, buffer);
634 if (status)
635 goto out;
636
637 if (*buffer != UMP5152 && *buffer != UMP3410) {
638 dev_err(dev, "%s - invalid buffer signature\n", __func__);
639 status = -ENODEV;
640 goto out;
641 }
642
643 do {
644 /* Validate the I2C */
645 status = read_rom(serial,
646 start_address,
647 sizeof(struct ti_i2c_desc),
648 (__u8 *)rom_desc);
649 if (status)
650 break;
651
652 if ((start_address + sizeof(struct ti_i2c_desc) +
653 rom_desc->Size) > TI_MAX_I2C_SIZE) {
654 status = -ENODEV;
655 dev_dbg(dev, "%s - structure too big, erroring out.\n", __func__);
656 break;
657 }
658
659 dev_dbg(dev, "%s Type = 0x%x\n", __func__, rom_desc->Type);
660
661 /* Skip type 2 record */
662 ttype = rom_desc->Type & 0x0f;
663 if (ttype != I2C_DESC_TYPE_FIRMWARE_BASIC
664 && ttype != I2C_DESC_TYPE_FIRMWARE_AUTO) {
665 /* Read the descriptor data */
666 status = read_rom(serial, start_address +
667 sizeof(struct ti_i2c_desc),
668 rom_desc->Size, buffer);
669 if (status)
670 break;
671
672 status = valid_csum(rom_desc, buffer);
673 if (status)
674 break;
675 }
676 start_address = start_address + sizeof(struct ti_i2c_desc) +
677 rom_desc->Size;
678
679 } while ((rom_desc->Type != I2C_DESC_TYPE_ION) &&
680 (start_address < TI_MAX_I2C_SIZE));
681
682 if ((rom_desc->Type != I2C_DESC_TYPE_ION) ||
683 (start_address > TI_MAX_I2C_SIZE))
684 status = -ENODEV;
685
686 out:
687 kfree(buffer);
688 kfree(rom_desc);
689 return status;
690 }
691
692 static int get_manuf_info(struct edgeport_serial *serial, __u8 *buffer)
693 {
694 int status;
695 int start_address;
696 struct ti_i2c_desc *rom_desc;
697 struct edge_ti_manuf_descriptor *desc;
698 struct device *dev = &serial->serial->dev->dev;
699
700 rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
701 if (!rom_desc)
702 return -ENOMEM;
703
704 start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_ION,
705 rom_desc);
706
707 if (!start_address) {
708 dev_dbg(dev, "%s - Edge Descriptor not found in I2C\n", __func__);
709 status = -ENODEV;
710 goto exit;
711 }
712
713 /* Read the descriptor data */
714 status = read_rom(serial, start_address+sizeof(struct ti_i2c_desc),
715 rom_desc->Size, buffer);
716 if (status)
717 goto exit;
718
719 status = valid_csum(rom_desc, buffer);
720
721 desc = (struct edge_ti_manuf_descriptor *)buffer;
722 dev_dbg(dev, "%s - IonConfig 0x%x\n", __func__, desc->IonConfig);
723 dev_dbg(dev, "%s - Version %d\n", __func__, desc->Version);
724 dev_dbg(dev, "%s - Cpu/Board 0x%x\n", __func__, desc->CpuRev_BoardRev);
725 dev_dbg(dev, "%s - NumPorts %d\n", __func__, desc->NumPorts);
726 dev_dbg(dev, "%s - NumVirtualPorts %d\n", __func__, desc->NumVirtualPorts);
727 dev_dbg(dev, "%s - TotalPorts %d\n", __func__, desc->TotalPorts);
728
729 exit:
730 kfree(rom_desc);
731 return status;
732 }
733
734 /* Build firmware header used for firmware update */
735 static int build_i2c_fw_hdr(__u8 *header, struct device *dev)
736 {
737 __u8 *buffer;
738 int buffer_size;
739 int i;
740 int err;
741 __u8 cs = 0;
742 struct ti_i2c_desc *i2c_header;
743 struct ti_i2c_image_header *img_header;
744 struct ti_i2c_firmware_rec *firmware_rec;
745 const struct firmware *fw;
746 const char *fw_name = "edgeport/down3.bin";
747
748 /* In order to update the I2C firmware we must change the type 2 record
749 * to type 0xF2. This will force the UMP to come up in Boot Mode.
750 * Then while in boot mode, the driver will download the latest
751 * firmware (padded to 15.5k) into the UMP ram. And finally when the
752 * device comes back up in download mode the driver will cause the new
753 * firmware to be copied from the UMP Ram to I2C and the firmware will
754 * update the record type from 0xf2 to 0x02.
755 */
756
757 /* Allocate a 15.5k buffer + 2 bytes for version number
758 * (Firmware Record) */
759 buffer_size = (((1024 * 16) - 512 ) +
760 sizeof(struct ti_i2c_firmware_rec));
761
762 buffer = kmalloc(buffer_size, GFP_KERNEL);
763 if (!buffer)
764 return -ENOMEM;
765
766 // Set entire image of 0xffs
767 memset(buffer, 0xff, buffer_size);
768
769 err = request_firmware(&fw, fw_name, dev);
770 if (err) {
771 dev_err(dev, "Failed to load image \"%s\" err %d\n",
772 fw_name, err);
773 kfree(buffer);
774 return err;
775 }
776
777 /* Save Download Version Number */
778 OperationalMajorVersion = fw->data[0];
779 OperationalMinorVersion = fw->data[1];
780 OperationalBuildNumber = fw->data[2] | (fw->data[3] << 8);
781
782 /* Copy version number into firmware record */
783 firmware_rec = (struct ti_i2c_firmware_rec *)buffer;
784
785 firmware_rec->Ver_Major = OperationalMajorVersion;
786 firmware_rec->Ver_Minor = OperationalMinorVersion;
787
788 /* Pointer to fw_down memory image */
789 img_header = (struct ti_i2c_image_header *)&fw->data[4];
790
791 memcpy(buffer + sizeof(struct ti_i2c_firmware_rec),
792 &fw->data[4 + sizeof(struct ti_i2c_image_header)],
793 le16_to_cpu(img_header->Length));
794
795 release_firmware(fw);
796
797 for (i=0; i < buffer_size; i++) {
798 cs = (__u8)(cs + buffer[i]);
799 }
800
801 kfree(buffer);
802
803 /* Build new header */
804 i2c_header = (struct ti_i2c_desc *)header;
805 firmware_rec = (struct ti_i2c_firmware_rec*)i2c_header->Data;
806
807 i2c_header->Type = I2C_DESC_TYPE_FIRMWARE_BLANK;
808 i2c_header->Size = (__u16)buffer_size;
809 i2c_header->CheckSum = cs;
810 firmware_rec->Ver_Major = OperationalMajorVersion;
811 firmware_rec->Ver_Minor = OperationalMinorVersion;
812
813 return 0;
814 }
815
816 /* Try to figure out what type of I2c we have */
817 static int i2c_type_bootmode(struct edgeport_serial *serial)
818 {
819 struct device *dev = &serial->serial->dev->dev;
820 int status;
821 u8 *data;
822
823 data = kmalloc(1, GFP_KERNEL);
824 if (!data)
825 return -ENOMEM;
826
827 /* Try to read type 2 */
828 status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ,
829 DTK_ADDR_SPACE_I2C_TYPE_II, 0, data, 0x01);
830 if (status)
831 dev_dbg(dev, "%s - read 2 status error = %d\n", __func__, status);
832 else
833 dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data);
834 if ((!status) && (*data == UMP5152 || *data == UMP3410)) {
835 dev_dbg(dev, "%s - ROM_TYPE_II\n", __func__);
836 serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
837 goto out;
838 }
839
840 /* Try to read type 3 */
841 status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ,
842 DTK_ADDR_SPACE_I2C_TYPE_III, 0, data, 0x01);
843 if (status)
844 dev_dbg(dev, "%s - read 3 status error = %d\n", __func__, status);
845 else
846 dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data);
847 if ((!status) && (*data == UMP5152 || *data == UMP3410)) {
848 dev_dbg(dev, "%s - ROM_TYPE_III\n", __func__);
849 serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III;
850 goto out;
851 }
852
853 dev_dbg(dev, "%s - Unknown\n", __func__);
854 serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
855 status = -ENODEV;
856 out:
857 kfree(data);
858 return status;
859 }
860
861 static int bulk_xfer(struct usb_serial *serial, void *buffer,
862 int length, int *num_sent)
863 {
864 int status;
865
866 status = usb_bulk_msg(serial->dev,
867 usb_sndbulkpipe(serial->dev,
868 serial->port[0]->bulk_out_endpointAddress),
869 buffer, length, num_sent, 1000);
870 return status;
871 }
872
873 /* Download given firmware image to the device (IN BOOT MODE) */
874 static int download_code(struct edgeport_serial *serial, __u8 *image,
875 int image_length)
876 {
877 int status = 0;
878 int pos;
879 int transfer;
880 int done;
881
882 /* Transfer firmware image */
883 for (pos = 0; pos < image_length; ) {
884 /* Read the next buffer from file */
885 transfer = image_length - pos;
886 if (transfer > EDGE_FW_BULK_MAX_PACKET_SIZE)
887 transfer = EDGE_FW_BULK_MAX_PACKET_SIZE;
888
889 /* Transfer data */
890 status = bulk_xfer(serial->serial, &image[pos],
891 transfer, &done);
892 if (status)
893 break;
894 /* Advance buffer pointer */
895 pos += done;
896 }
897
898 return status;
899 }
900
901 /* FIXME!!! */
902 static int config_boot_dev(struct usb_device *dev)
903 {
904 return 0;
905 }
906
907 static int ti_cpu_rev(struct edge_ti_manuf_descriptor *desc)
908 {
909 return TI_GET_CPU_REVISION(desc->CpuRev_BoardRev);
910 }
911
912 /**
913 * DownloadTIFirmware - Download run-time operating firmware to the TI5052
914 *
915 * This routine downloads the main operating code into the TI5052, using the
916 * boot code already burned into E2PROM or ROM.
917 */
918 static int download_fw(struct edgeport_serial *serial)
919 {
920 struct device *dev = &serial->serial->dev->dev;
921 int status = 0;
922 int start_address;
923 struct edge_ti_manuf_descriptor *ti_manuf_desc;
924 struct usb_interface_descriptor *interface;
925 int download_cur_ver;
926 int download_new_ver;
927
928 /* This routine is entered by both the BOOT mode and the Download mode
929 * We can determine which code is running by the reading the config
930 * descriptor and if we have only one bulk pipe it is in boot mode
931 */
932 serial->product_info.hardware_type = HARDWARE_TYPE_TIUMP;
933
934 /* Default to type 2 i2c */
935 serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
936
937 status = choose_config(serial->serial->dev);
938 if (status)
939 return status;
940
941 interface = &serial->serial->interface->cur_altsetting->desc;
942 if (!interface) {
943 dev_err(dev, "%s - no interface set, error!\n", __func__);
944 return -ENODEV;
945 }
946
947 /*
948 * Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING
949 * if we have more than one endpoint we are definitely in download
950 * mode
951 */
952 if (interface->bNumEndpoints > 1)
953 serial->product_info.TiMode = TI_MODE_DOWNLOAD;
954 else
955 /* Otherwise we will remain in configuring mode */
956 serial->product_info.TiMode = TI_MODE_CONFIGURING;
957
958 /********************************************************************/
959 /* Download Mode */
960 /********************************************************************/
961 if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) {
962 struct ti_i2c_desc *rom_desc;
963
964 dev_dbg(dev, "%s - RUNNING IN DOWNLOAD MODE\n", __func__);
965
966 status = check_i2c_image(serial);
967 if (status) {
968 dev_dbg(dev, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__);
969 return status;
970 }
971
972 /* Validate Hardware version number
973 * Read Manufacturing Descriptor from TI Based Edgeport
974 */
975 ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL);
976 if (!ti_manuf_desc)
977 return -ENOMEM;
978
979 status = get_manuf_info(serial, (__u8 *)ti_manuf_desc);
980 if (status) {
981 kfree(ti_manuf_desc);
982 return status;
983 }
984
985 /* Check version number of ION descriptor */
986 if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) {
987 dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n",
988 __func__, ti_cpu_rev(ti_manuf_desc));
989 kfree(ti_manuf_desc);
990 return -EINVAL;
991 }
992
993 rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
994 if (!rom_desc) {
995 kfree(ti_manuf_desc);
996 return -ENOMEM;
997 }
998
999 /* Search for type 2 record (firmware record) */
1000 start_address = get_descriptor_addr(serial,
1001 I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc);
1002 if (start_address != 0) {
1003 struct ti_i2c_firmware_rec *firmware_version;
1004 u8 *record;
1005
1006 dev_dbg(dev, "%s - Found Type FIRMWARE (Type 2) record\n", __func__);
1007
1008 firmware_version = kmalloc(sizeof(*firmware_version),
1009 GFP_KERNEL);
1010 if (!firmware_version) {
1011 kfree(rom_desc);
1012 kfree(ti_manuf_desc);
1013 return -ENOMEM;
1014 }
1015
1016 /* Validate version number
1017 * Read the descriptor data
1018 */
1019 status = read_rom(serial, start_address +
1020 sizeof(struct ti_i2c_desc),
1021 sizeof(struct ti_i2c_firmware_rec),
1022 (__u8 *)firmware_version);
1023 if (status) {
1024 kfree(firmware_version);
1025 kfree(rom_desc);
1026 kfree(ti_manuf_desc);
1027 return status;
1028 }
1029
1030 /* Check version number of download with current
1031 version in I2c */
1032 download_cur_ver = (firmware_version->Ver_Major << 8) +
1033 (firmware_version->Ver_Minor);
1034 download_new_ver = (OperationalMajorVersion << 8) +
1035 (OperationalMinorVersion);
1036
1037 dev_dbg(dev, "%s - >> FW Versions Device %d.%d Driver %d.%d\n",
1038 __func__, firmware_version->Ver_Major,
1039 firmware_version->Ver_Minor,
1040 OperationalMajorVersion,
1041 OperationalMinorVersion);
1042
1043 /* Check if we have an old version in the I2C and
1044 update if necessary */
1045 if (download_cur_ver < download_new_ver) {
1046 dev_dbg(dev, "%s - Update I2C dld from %d.%d to %d.%d\n",
1047 __func__,
1048 firmware_version->Ver_Major,
1049 firmware_version->Ver_Minor,
1050 OperationalMajorVersion,
1051 OperationalMinorVersion);
1052
1053 record = kmalloc(1, GFP_KERNEL);
1054 if (!record) {
1055 kfree(firmware_version);
1056 kfree(rom_desc);
1057 kfree(ti_manuf_desc);
1058 return -ENOMEM;
1059 }
1060 /* In order to update the I2C firmware we must
1061 * change the type 2 record to type 0xF2. This
1062 * will force the UMP to come up in Boot Mode.
1063 * Then while in boot mode, the driver will
1064 * download the latest firmware (padded to
1065 * 15.5k) into the UMP ram. Finally when the
1066 * device comes back up in download mode the
1067 * driver will cause the new firmware to be
1068 * copied from the UMP Ram to I2C and the
1069 * firmware will update the record type from
1070 * 0xf2 to 0x02.
1071 */
1072 *record = I2C_DESC_TYPE_FIRMWARE_BLANK;
1073
1074 /* Change the I2C Firmware record type to
1075 0xf2 to trigger an update */
1076 status = write_rom(serial, start_address,
1077 sizeof(*record), record);
1078 if (status) {
1079 kfree(record);
1080 kfree(firmware_version);
1081 kfree(rom_desc);
1082 kfree(ti_manuf_desc);
1083 return status;
1084 }
1085
1086 /* verify the write -- must do this in order
1087 * for write to complete before we do the
1088 * hardware reset
1089 */
1090 status = read_rom(serial,
1091 start_address,
1092 sizeof(*record),
1093 record);
1094 if (status) {
1095 kfree(record);
1096 kfree(firmware_version);
1097 kfree(rom_desc);
1098 kfree(ti_manuf_desc);
1099 return status;
1100 }
1101
1102 if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) {
1103 dev_err(dev, "%s - error resetting device\n", __func__);
1104 kfree(record);
1105 kfree(firmware_version);
1106 kfree(rom_desc);
1107 kfree(ti_manuf_desc);
1108 return -ENODEV;
1109 }
1110
1111 dev_dbg(dev, "%s - HARDWARE RESET\n", __func__);
1112
1113 /* Reset UMP -- Back to BOOT MODE */
1114 status = ti_vsend_sync(serial->serial->dev,
1115 UMPC_HARDWARE_RESET,
1116 0, 0, NULL, 0);
1117
1118 dev_dbg(dev, "%s - HARDWARE RESET return %d\n", __func__, status);
1119
1120 /* return an error on purpose. */
1121 kfree(record);
1122 kfree(firmware_version);
1123 kfree(rom_desc);
1124 kfree(ti_manuf_desc);
1125 return -ENODEV;
1126 }
1127 kfree(firmware_version);
1128 }
1129 /* Search for type 0xF2 record (firmware blank record) */
1130 else if ((start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc)) != 0) {
1131 #define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \
1132 sizeof(struct ti_i2c_firmware_rec))
1133 __u8 *header;
1134 __u8 *vheader;
1135
1136 header = kmalloc(HEADER_SIZE, GFP_KERNEL);
1137 if (!header) {
1138 kfree(rom_desc);
1139 kfree(ti_manuf_desc);
1140 return -ENOMEM;
1141 }
1142
1143 vheader = kmalloc(HEADER_SIZE, GFP_KERNEL);
1144 if (!vheader) {
1145 kfree(header);
1146 kfree(rom_desc);
1147 kfree(ti_manuf_desc);
1148 return -ENOMEM;
1149 }
1150
1151 dev_dbg(dev, "%s - Found Type BLANK FIRMWARE (Type F2) record\n", __func__);
1152
1153 /*
1154 * In order to update the I2C firmware we must change
1155 * the type 2 record to type 0xF2. This will force the
1156 * UMP to come up in Boot Mode. Then while in boot
1157 * mode, the driver will download the latest firmware
1158 * (padded to 15.5k) into the UMP ram. Finally when the
1159 * device comes back up in download mode the driver
1160 * will cause the new firmware to be copied from the
1161 * UMP Ram to I2C and the firmware will update the
1162 * record type from 0xf2 to 0x02.
1163 */
1164 status = build_i2c_fw_hdr(header, dev);
1165 if (status) {
1166 kfree(vheader);
1167 kfree(header);
1168 kfree(rom_desc);
1169 kfree(ti_manuf_desc);
1170 return -EINVAL;
1171 }
1172
1173 /* Update I2C with type 0xf2 record with correct
1174 size and checksum */
1175 status = write_rom(serial,
1176 start_address,
1177 HEADER_SIZE,
1178 header);
1179 if (status) {
1180 kfree(vheader);
1181 kfree(header);
1182 kfree(rom_desc);
1183 kfree(ti_manuf_desc);
1184 return -EINVAL;
1185 }
1186
1187 /* verify the write -- must do this in order for
1188 write to complete before we do the hardware reset */
1189 status = read_rom(serial, start_address,
1190 HEADER_SIZE, vheader);
1191
1192 if (status) {
1193 dev_dbg(dev, "%s - can't read header back\n", __func__);
1194 kfree(vheader);
1195 kfree(header);
1196 kfree(rom_desc);
1197 kfree(ti_manuf_desc);
1198 return status;
1199 }
1200 if (memcmp(vheader, header, HEADER_SIZE)) {
1201 dev_dbg(dev, "%s - write download record failed\n", __func__);
1202 kfree(vheader);
1203 kfree(header);
1204 kfree(rom_desc);
1205 kfree(ti_manuf_desc);
1206 return -EINVAL;
1207 }
1208
1209 kfree(vheader);
1210 kfree(header);
1211
1212 dev_dbg(dev, "%s - Start firmware update\n", __func__);
1213
1214 /* Tell firmware to copy download image into I2C */
1215 status = ti_vsend_sync(serial->serial->dev,
1216 UMPC_COPY_DNLD_TO_I2C, 0, 0, NULL, 0);
1217
1218 dev_dbg(dev, "%s - Update complete 0x%x\n", __func__, status);
1219 if (status) {
1220 dev_err(dev,
1221 "%s - UMPC_COPY_DNLD_TO_I2C failed\n",
1222 __func__);
1223 kfree(rom_desc);
1224 kfree(ti_manuf_desc);
1225 return status;
1226 }
1227 }
1228
1229 // The device is running the download code
1230 kfree(rom_desc);
1231 kfree(ti_manuf_desc);
1232 return 0;
1233 }
1234
1235 /********************************************************************/
1236 /* Boot Mode */
1237 /********************************************************************/
1238 dev_dbg(dev, "%s - RUNNING IN BOOT MODE\n", __func__);
1239
1240 /* Configure the TI device so we can use the BULK pipes for download */
1241 status = config_boot_dev(serial->serial->dev);
1242 if (status)
1243 return status;
1244
1245 if (le16_to_cpu(serial->serial->dev->descriptor.idVendor)
1246 != USB_VENDOR_ID_ION) {
1247 dev_dbg(dev, "%s - VID = 0x%x\n", __func__,
1248 le16_to_cpu(serial->serial->dev->descriptor.idVendor));
1249 serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
1250 goto stayinbootmode;
1251 }
1252
1253 /* We have an ION device (I2c Must be programmed)
1254 Determine I2C image type */
1255 if (i2c_type_bootmode(serial))
1256 goto stayinbootmode;
1257
1258 /* Check for ION Vendor ID and that the I2C is valid */
1259 if (!check_i2c_image(serial)) {
1260 struct ti_i2c_image_header *header;
1261 int i;
1262 __u8 cs = 0;
1263 __u8 *buffer;
1264 int buffer_size;
1265 int err;
1266 const struct firmware *fw;
1267 const char *fw_name = "edgeport/down3.bin";
1268
1269 /* Validate Hardware version number
1270 * Read Manufacturing Descriptor from TI Based Edgeport
1271 */
1272 ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL);
1273 if (!ti_manuf_desc)
1274 return -ENOMEM;
1275
1276 status = get_manuf_info(serial, (__u8 *)ti_manuf_desc);
1277 if (status) {
1278 kfree(ti_manuf_desc);
1279 goto stayinbootmode;
1280 }
1281
1282 /* Check for version 2 */
1283 if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) {
1284 dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n",
1285 __func__, ti_cpu_rev(ti_manuf_desc));
1286 kfree(ti_manuf_desc);
1287 goto stayinbootmode;
1288 }
1289
1290 kfree(ti_manuf_desc);
1291
1292 /*
1293 * In order to update the I2C firmware we must change the type
1294 * 2 record to type 0xF2. This will force the UMP to come up
1295 * in Boot Mode. Then while in boot mode, the driver will
1296 * download the latest firmware (padded to 15.5k) into the
1297 * UMP ram. Finally when the device comes back up in download
1298 * mode the driver will cause the new firmware to be copied
1299 * from the UMP Ram to I2C and the firmware will update the
1300 * record type from 0xf2 to 0x02.
1301 *
1302 * Do we really have to copy the whole firmware image,
1303 * or could we do this in place!
1304 */
1305
1306 /* Allocate a 15.5k buffer + 3 byte header */
1307 buffer_size = (((1024 * 16) - 512) +
1308 sizeof(struct ti_i2c_image_header));
1309 buffer = kmalloc(buffer_size, GFP_KERNEL);
1310 if (!buffer)
1311 return -ENOMEM;
1312
1313 /* Initialize the buffer to 0xff (pad the buffer) */
1314 memset(buffer, 0xff, buffer_size);
1315
1316 err = request_firmware(&fw, fw_name, dev);
1317 if (err) {
1318 dev_err(dev, "Failed to load image \"%s\" err %d\n",
1319 fw_name, err);
1320 kfree(buffer);
1321 return err;
1322 }
1323 memcpy(buffer, &fw->data[4], fw->size - 4);
1324 release_firmware(fw);
1325
1326 for (i = sizeof(struct ti_i2c_image_header);
1327 i < buffer_size; i++) {
1328 cs = (__u8)(cs + buffer[i]);
1329 }
1330
1331 header = (struct ti_i2c_image_header *)buffer;
1332
1333 /* update length and checksum after padding */
1334 header->Length = cpu_to_le16((__u16)(buffer_size -
1335 sizeof(struct ti_i2c_image_header)));
1336 header->CheckSum = cs;
1337
1338 /* Download the operational code */
1339 dev_dbg(dev, "%s - Downloading operational code image (TI UMP)\n", __func__);
1340 status = download_code(serial, buffer, buffer_size);
1341
1342 kfree(buffer);
1343
1344 if (status) {
1345 dev_dbg(dev, "%s - Error downloading operational code image\n", __func__);
1346 return status;
1347 }
1348
1349 /* Device will reboot */
1350 serial->product_info.TiMode = TI_MODE_TRANSITIONING;
1351
1352 dev_dbg(dev, "%s - Download successful -- Device rebooting...\n", __func__);
1353
1354 /* return an error on purpose */
1355 return -ENODEV;
1356 }
1357
1358 stayinbootmode:
1359 /* Eprom is invalid or blank stay in boot mode */
1360 dev_dbg(dev, "%s - STAYING IN BOOT MODE\n", __func__);
1361 serial->product_info.TiMode = TI_MODE_BOOT;
1362
1363 return 0;
1364 }
1365
1366
1367 static int ti_do_config(struct edgeport_port *port, int feature, int on)
1368 {
1369 int port_number = port->port->port_number;
1370
1371 on = !!on; /* 1 or 0 not bitmask */
1372 return send_cmd(port->port->serial->dev,
1373 feature, (__u8)(UMPM_UART1_PORT + port_number),
1374 on, NULL, 0);
1375 }
1376
1377
1378 static int restore_mcr(struct edgeport_port *port, __u8 mcr)
1379 {
1380 int status = 0;
1381
1382 dev_dbg(&port->port->dev, "%s - %x\n", __func__, mcr);
1383
1384 status = ti_do_config(port, UMPC_SET_CLR_DTR, mcr & MCR_DTR);
1385 if (status)
1386 return status;
1387 status = ti_do_config(port, UMPC_SET_CLR_RTS, mcr & MCR_RTS);
1388 if (status)
1389 return status;
1390 return ti_do_config(port, UMPC_SET_CLR_LOOPBACK, mcr & MCR_LOOPBACK);
1391 }
1392
1393 /* Convert TI LSR to standard UART flags */
1394 static __u8 map_line_status(__u8 ti_lsr)
1395 {
1396 __u8 lsr = 0;
1397
1398 #define MAP_FLAG(flagUmp, flagUart) \
1399 if (ti_lsr & flagUmp) \
1400 lsr |= flagUart;
1401
1402 MAP_FLAG(UMP_UART_LSR_OV_MASK, LSR_OVER_ERR) /* overrun */
1403 MAP_FLAG(UMP_UART_LSR_PE_MASK, LSR_PAR_ERR) /* parity error */
1404 MAP_FLAG(UMP_UART_LSR_FE_MASK, LSR_FRM_ERR) /* framing error */
1405 MAP_FLAG(UMP_UART_LSR_BR_MASK, LSR_BREAK) /* break detected */
1406 MAP_FLAG(UMP_UART_LSR_RX_MASK, LSR_RX_AVAIL) /* rx data available */
1407 MAP_FLAG(UMP_UART_LSR_TX_MASK, LSR_TX_EMPTY) /* tx hold reg empty */
1408
1409 #undef MAP_FLAG
1410
1411 return lsr;
1412 }
1413
1414 static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr)
1415 {
1416 struct async_icount *icount;
1417 struct tty_struct *tty;
1418
1419 dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, msr);
1420
1421 if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR |
1422 EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) {
1423 icount = &edge_port->port->icount;
1424
1425 /* update input line counters */
1426 if (msr & EDGEPORT_MSR_DELTA_CTS)
1427 icount->cts++;
1428 if (msr & EDGEPORT_MSR_DELTA_DSR)
1429 icount->dsr++;
1430 if (msr & EDGEPORT_MSR_DELTA_CD)
1431 icount->dcd++;
1432 if (msr & EDGEPORT_MSR_DELTA_RI)
1433 icount->rng++;
1434 wake_up_interruptible(&edge_port->port->port.delta_msr_wait);
1435 }
1436
1437 /* Save the new modem status */
1438 edge_port->shadow_msr = msr & 0xf0;
1439
1440 tty = tty_port_tty_get(&edge_port->port->port);
1441 /* handle CTS flow control */
1442 if (tty && C_CRTSCTS(tty)) {
1443 if (msr & EDGEPORT_MSR_CTS) {
1444 tty->hw_stopped = 0;
1445 tty_wakeup(tty);
1446 } else {
1447 tty->hw_stopped = 1;
1448 }
1449 }
1450 tty_kref_put(tty);
1451 }
1452
1453 static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data,
1454 __u8 lsr, __u8 data)
1455 {
1456 struct async_icount *icount;
1457 __u8 new_lsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR |
1458 LSR_FRM_ERR | LSR_BREAK));
1459
1460 dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr);
1461
1462 edge_port->shadow_lsr = lsr;
1463
1464 if (new_lsr & LSR_BREAK)
1465 /*
1466 * Parity and Framing errors only count if they
1467 * occur exclusive of a break being received.
1468 */
1469 new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK);
1470
1471 /* Place LSR data byte into Rx buffer */
1472 if (lsr_data)
1473 edge_tty_recv(edge_port->port, &data, 1);
1474
1475 /* update input line counters */
1476 icount = &edge_port->port->icount;
1477 if (new_lsr & LSR_BREAK)
1478 icount->brk++;
1479 if (new_lsr & LSR_OVER_ERR)
1480 icount->overrun++;
1481 if (new_lsr & LSR_PAR_ERR)
1482 icount->parity++;
1483 if (new_lsr & LSR_FRM_ERR)
1484 icount->frame++;
1485 }
1486
1487
1488 static void edge_interrupt_callback(struct urb *urb)
1489 {
1490 struct edgeport_serial *edge_serial = urb->context;
1491 struct usb_serial_port *port;
1492 struct edgeport_port *edge_port;
1493 struct device *dev;
1494 unsigned char *data = urb->transfer_buffer;
1495 int length = urb->actual_length;
1496 int port_number;
1497 int function;
1498 int retval;
1499 __u8 lsr;
1500 __u8 msr;
1501 int status = urb->status;
1502
1503 switch (status) {
1504 case 0:
1505 /* success */
1506 break;
1507 case -ECONNRESET:
1508 case -ENOENT:
1509 case -ESHUTDOWN:
1510 /* this urb is terminated, clean up */
1511 dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n",
1512 __func__, status);
1513 return;
1514 default:
1515 dev_err(&urb->dev->dev, "%s - nonzero urb status received: "
1516 "%d\n", __func__, status);
1517 goto exit;
1518 }
1519
1520 if (!length) {
1521 dev_dbg(&urb->dev->dev, "%s - no data in urb\n", __func__);
1522 goto exit;
1523 }
1524
1525 dev = &edge_serial->serial->dev->dev;
1526 usb_serial_debug_data(dev, __func__, length, data);
1527
1528 if (length != 2) {
1529 dev_dbg(dev, "%s - expecting packet of size 2, got %d\n", __func__, length);
1530 goto exit;
1531 }
1532
1533 port_number = TIUMP_GET_PORT_FROM_CODE(data[0]);
1534 function = TIUMP_GET_FUNC_FROM_CODE(data[0]);
1535 dev_dbg(dev, "%s - port_number %d, function %d, info 0x%x\n", __func__,
1536 port_number, function, data[1]);
1537 port = edge_serial->serial->port[port_number];
1538 edge_port = usb_get_serial_port_data(port);
1539 if (!edge_port) {
1540 dev_dbg(dev, "%s - edge_port not found\n", __func__);
1541 return;
1542 }
1543 switch (function) {
1544 case TIUMP_INTERRUPT_CODE_LSR:
1545 lsr = map_line_status(data[1]);
1546 if (lsr & UMP_UART_LSR_DATA_MASK) {
1547 /* Save the LSR event for bulk read
1548 completion routine */
1549 dev_dbg(dev, "%s - LSR Event Port %u LSR Status = %02x\n",
1550 __func__, port_number, lsr);
1551 edge_port->lsr_event = 1;
1552 edge_port->lsr_mask = lsr;
1553 } else {
1554 dev_dbg(dev, "%s - ===== Port %d LSR Status = %02x ======\n",
1555 __func__, port_number, lsr);
1556 handle_new_lsr(edge_port, 0, lsr, 0);
1557 }
1558 break;
1559
1560 case TIUMP_INTERRUPT_CODE_MSR: /* MSR */
1561 /* Copy MSR from UMP */
1562 msr = data[1];
1563 dev_dbg(dev, "%s - ===== Port %u MSR Status = %02x ======\n",
1564 __func__, port_number, msr);
1565 handle_new_msr(edge_port, msr);
1566 break;
1567
1568 default:
1569 dev_err(&urb->dev->dev,
1570 "%s - Unknown Interrupt code from UMP %x\n",
1571 __func__, data[1]);
1572 break;
1573
1574 }
1575
1576 exit:
1577 retval = usb_submit_urb(urb, GFP_ATOMIC);
1578 if (retval)
1579 dev_err(&urb->dev->dev,
1580 "%s - usb_submit_urb failed with result %d\n",
1581 __func__, retval);
1582 }
1583
1584 static void edge_bulk_in_callback(struct urb *urb)
1585 {
1586 struct edgeport_port *edge_port = urb->context;
1587 struct device *dev = &edge_port->port->dev;
1588 unsigned char *data = urb->transfer_buffer;
1589 int retval = 0;
1590 int port_number;
1591 int status = urb->status;
1592
1593 switch (status) {
1594 case 0:
1595 /* success */
1596 break;
1597 case -ECONNRESET:
1598 case -ENOENT:
1599 case -ESHUTDOWN:
1600 /* this urb is terminated, clean up */
1601 dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", __func__, status);
1602 return;
1603 default:
1604 dev_err(&urb->dev->dev, "%s - nonzero read bulk status received: %d\n", __func__, status);
1605 }
1606
1607 if (status == -EPIPE)
1608 goto exit;
1609
1610 if (status) {
1611 dev_err(&urb->dev->dev, "%s - stopping read!\n", __func__);
1612 return;
1613 }
1614
1615 port_number = edge_port->port->port_number;
1616
1617 if (edge_port->lsr_event) {
1618 edge_port->lsr_event = 0;
1619 dev_dbg(dev, "%s ===== Port %u LSR Status = %02x, Data = %02x ======\n",
1620 __func__, port_number, edge_port->lsr_mask, *data);
1621 handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data);
1622 /* Adjust buffer length/pointer */
1623 --urb->actual_length;
1624 ++data;
1625 }
1626
1627 if (urb->actual_length) {
1628 usb_serial_debug_data(dev, __func__, urb->actual_length, data);
1629 if (edge_port->close_pending)
1630 dev_dbg(dev, "%s - close pending, dropping data on the floor\n",
1631 __func__);
1632 else
1633 edge_tty_recv(edge_port->port, data,
1634 urb->actual_length);
1635 edge_port->port->icount.rx += urb->actual_length;
1636 }
1637
1638 exit:
1639 /* continue read unless stopped */
1640 spin_lock(&edge_port->ep_lock);
1641 if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING)
1642 retval = usb_submit_urb(urb, GFP_ATOMIC);
1643 else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING)
1644 edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED;
1645
1646 spin_unlock(&edge_port->ep_lock);
1647 if (retval)
1648 dev_err(dev, "%s - usb_submit_urb failed with result %d\n", __func__, retval);
1649 }
1650
1651 static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data,
1652 int length)
1653 {
1654 int queued;
1655
1656 queued = tty_insert_flip_string(&port->port, data, length);
1657 if (queued < length)
1658 dev_err(&port->dev, "%s - dropping data, %d bytes lost\n",
1659 __func__, length - queued);
1660 tty_flip_buffer_push(&port->port);
1661 }
1662
1663 static void edge_bulk_out_callback(struct urb *urb)
1664 {
1665 struct usb_serial_port *port = urb->context;
1666 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1667 int status = urb->status;
1668 struct tty_struct *tty;
1669
1670 edge_port->ep_write_urb_in_use = 0;
1671
1672 switch (status) {
1673 case 0:
1674 /* success */
1675 break;
1676 case -ECONNRESET:
1677 case -ENOENT:
1678 case -ESHUTDOWN:
1679 /* this urb is terminated, clean up */
1680 dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n",
1681 __func__, status);
1682 return;
1683 default:
1684 dev_err_console(port, "%s - nonzero write bulk status "
1685 "received: %d\n", __func__, status);
1686 }
1687
1688 /* send any buffered data */
1689 tty = tty_port_tty_get(&port->port);
1690 edge_send(port, tty);
1691 tty_kref_put(tty);
1692 }
1693
1694 static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
1695 {
1696 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1697 struct edgeport_serial *edge_serial;
1698 struct usb_device *dev;
1699 struct urb *urb;
1700 int port_number;
1701 int status;
1702 u16 open_settings;
1703 u8 transaction_timeout;
1704
1705 if (edge_port == NULL)
1706 return -ENODEV;
1707
1708 port_number = port->port_number;
1709
1710 dev = port->serial->dev;
1711
1712 /* turn off loopback */
1713 status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0);
1714 if (status) {
1715 dev_err(&port->dev,
1716 "%s - cannot send clear loopback command, %d\n",
1717 __func__, status);
1718 return status;
1719 }
1720
1721 /* set up the port settings */
1722 if (tty)
1723 edge_set_termios(tty, port, &tty->termios);
1724
1725 /* open up the port */
1726
1727 /* milliseconds to timeout for DMA transfer */
1728 transaction_timeout = 2;
1729
1730 edge_port->ump_read_timeout =
1731 max(20, ((transaction_timeout * 3) / 2));
1732
1733 /* milliseconds to timeout for DMA transfer */
1734 open_settings = (u8)(UMP_DMA_MODE_CONTINOUS |
1735 UMP_PIPE_TRANS_TIMEOUT_ENA |
1736 (transaction_timeout << 2));
1737
1738 dev_dbg(&port->dev, "%s - Sending UMPC_OPEN_PORT\n", __func__);
1739
1740 /* Tell TI to open and start the port */
1741 status = send_cmd(dev, UMPC_OPEN_PORT,
1742 (u8)(UMPM_UART1_PORT + port_number), open_settings, NULL, 0);
1743 if (status) {
1744 dev_err(&port->dev, "%s - cannot send open command, %d\n",
1745 __func__, status);
1746 return status;
1747 }
1748
1749 /* Start the DMA? */
1750 status = send_cmd(dev, UMPC_START_PORT,
1751 (u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0);
1752 if (status) {
1753 dev_err(&port->dev, "%s - cannot send start DMA command, %d\n",
1754 __func__, status);
1755 return status;
1756 }
1757
1758 /* Clear TX and RX buffers in UMP */
1759 status = purge_port(port, UMP_PORT_DIR_OUT | UMP_PORT_DIR_IN);
1760 if (status) {
1761 dev_err(&port->dev,
1762 "%s - cannot send clear buffers command, %d\n",
1763 __func__, status);
1764 return status;
1765 }
1766
1767 /* Read Initial MSR */
1768 status = ti_vread_sync(dev, UMPC_READ_MSR, 0,
1769 (__u16)(UMPM_UART1_PORT + port_number),
1770 &edge_port->shadow_msr, 1);
1771 if (status) {
1772 dev_err(&port->dev, "%s - cannot send read MSR command, %d\n",
1773 __func__, status);
1774 return status;
1775 }
1776
1777 dev_dbg(&port->dev, "ShadowMSR 0x%X\n", edge_port->shadow_msr);
1778
1779 /* Set Initial MCR */
1780 edge_port->shadow_mcr = MCR_RTS | MCR_DTR;
1781 dev_dbg(&port->dev, "ShadowMCR 0x%X\n", edge_port->shadow_mcr);
1782
1783 edge_serial = edge_port->edge_serial;
1784 if (mutex_lock_interruptible(&edge_serial->es_lock))
1785 return -ERESTARTSYS;
1786 if (edge_serial->num_ports_open == 0) {
1787 /* we are the first port to open, post the interrupt urb */
1788 urb = edge_serial->serial->port[0]->interrupt_in_urb;
1789 if (!urb) {
1790 dev_err(&port->dev,
1791 "%s - no interrupt urb present, exiting\n",
1792 __func__);
1793 status = -EINVAL;
1794 goto release_es_lock;
1795 }
1796 urb->context = edge_serial;
1797 status = usb_submit_urb(urb, GFP_KERNEL);
1798 if (status) {
1799 dev_err(&port->dev,
1800 "%s - usb_submit_urb failed with value %d\n",
1801 __func__, status);
1802 goto release_es_lock;
1803 }
1804 }
1805
1806 /*
1807 * reset the data toggle on the bulk endpoints to work around bug in
1808 * host controllers where things get out of sync some times
1809 */
1810 usb_clear_halt(dev, port->write_urb->pipe);
1811 usb_clear_halt(dev, port->read_urb->pipe);
1812
1813 /* start up our bulk read urb */
1814 urb = port->read_urb;
1815 if (!urb) {
1816 dev_err(&port->dev, "%s - no read urb present, exiting\n",
1817 __func__);
1818 status = -EINVAL;
1819 goto unlink_int_urb;
1820 }
1821 edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;
1822 urb->context = edge_port;
1823 status = usb_submit_urb(urb, GFP_KERNEL);
1824 if (status) {
1825 dev_err(&port->dev,
1826 "%s - read bulk usb_submit_urb failed with value %d\n",
1827 __func__, status);
1828 goto unlink_int_urb;
1829 }
1830
1831 ++edge_serial->num_ports_open;
1832
1833 goto release_es_lock;
1834
1835 unlink_int_urb:
1836 if (edge_port->edge_serial->num_ports_open == 0)
1837 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
1838 release_es_lock:
1839 mutex_unlock(&edge_serial->es_lock);
1840 return status;
1841 }
1842
1843 static void edge_close(struct usb_serial_port *port)
1844 {
1845 struct edgeport_serial *edge_serial;
1846 struct edgeport_port *edge_port;
1847 struct usb_serial *serial = port->serial;
1848 unsigned long flags;
1849 int port_number;
1850
1851 edge_serial = usb_get_serial_data(port->serial);
1852 edge_port = usb_get_serial_port_data(port);
1853 if (edge_serial == NULL || edge_port == NULL)
1854 return;
1855
1856 /* The bulkreadcompletion routine will check
1857 * this flag and dump add read data */
1858 edge_port->close_pending = 1;
1859
1860 usb_kill_urb(port->read_urb);
1861 usb_kill_urb(port->write_urb);
1862 edge_port->ep_write_urb_in_use = 0;
1863 spin_lock_irqsave(&edge_port->ep_lock, flags);
1864 kfifo_reset_out(&port->write_fifo);
1865 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
1866
1867 dev_dbg(&port->dev, "%s - send umpc_close_port\n", __func__);
1868 port_number = port->port_number;
1869 send_cmd(serial->dev, UMPC_CLOSE_PORT,
1870 (__u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0);
1871
1872 mutex_lock(&edge_serial->es_lock);
1873 --edge_port->edge_serial->num_ports_open;
1874 if (edge_port->edge_serial->num_ports_open <= 0) {
1875 /* last port is now closed, let's shut down our interrupt urb */
1876 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
1877 edge_port->edge_serial->num_ports_open = 0;
1878 }
1879 mutex_unlock(&edge_serial->es_lock);
1880 edge_port->close_pending = 0;
1881 }
1882
1883 static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
1884 const unsigned char *data, int count)
1885 {
1886 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1887
1888 if (count == 0) {
1889 dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__);
1890 return 0;
1891 }
1892
1893 if (edge_port == NULL)
1894 return -ENODEV;
1895 if (edge_port->close_pending == 1)
1896 return -ENODEV;
1897
1898 count = kfifo_in_locked(&port->write_fifo, data, count,
1899 &edge_port->ep_lock);
1900 edge_send(port, tty);
1901
1902 return count;
1903 }
1904
1905 static void edge_send(struct usb_serial_port *port, struct tty_struct *tty)
1906 {
1907 int count, result;
1908 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1909 unsigned long flags;
1910
1911 spin_lock_irqsave(&edge_port->ep_lock, flags);
1912
1913 if (edge_port->ep_write_urb_in_use) {
1914 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
1915 return;
1916 }
1917
1918 count = kfifo_out(&port->write_fifo,
1919 port->write_urb->transfer_buffer,
1920 port->bulk_out_size);
1921
1922 if (count == 0) {
1923 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
1924 return;
1925 }
1926
1927 edge_port->ep_write_urb_in_use = 1;
1928
1929 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
1930
1931 usb_serial_debug_data(&port->dev, __func__, count, port->write_urb->transfer_buffer);
1932
1933 /* set up our urb */
1934 port->write_urb->transfer_buffer_length = count;
1935
1936 /* send the data out the bulk port */
1937 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
1938 if (result) {
1939 dev_err_console(port,
1940 "%s - failed submitting write urb, error %d\n",
1941 __func__, result);
1942 edge_port->ep_write_urb_in_use = 0;
1943 /* TODO: reschedule edge_send */
1944 } else
1945 edge_port->port->icount.tx += count;
1946
1947 /* wakeup any process waiting for writes to complete */
1948 /* there is now more room in the buffer for new writes */
1949 if (tty)
1950 tty_wakeup(tty);
1951 }
1952
1953 static int edge_write_room(struct tty_struct *tty)
1954 {
1955 struct usb_serial_port *port = tty->driver_data;
1956 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1957 int room = 0;
1958 unsigned long flags;
1959
1960 if (edge_port == NULL)
1961 return 0;
1962 if (edge_port->close_pending == 1)
1963 return 0;
1964
1965 spin_lock_irqsave(&edge_port->ep_lock, flags);
1966 room = kfifo_avail(&port->write_fifo);
1967 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
1968
1969 dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
1970 return room;
1971 }
1972
1973 static int edge_chars_in_buffer(struct tty_struct *tty)
1974 {
1975 struct usb_serial_port *port = tty->driver_data;
1976 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1977 int chars = 0;
1978 unsigned long flags;
1979 if (edge_port == NULL)
1980 return 0;
1981
1982 spin_lock_irqsave(&edge_port->ep_lock, flags);
1983 chars = kfifo_len(&port->write_fifo);
1984 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
1985
1986 dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
1987 return chars;
1988 }
1989
1990 static bool edge_tx_empty(struct usb_serial_port *port)
1991 {
1992 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1993 int ret;
1994
1995 ret = tx_active(edge_port);
1996 if (ret > 0)
1997 return false;
1998
1999 return true;
2000 }
2001
2002 static void edge_throttle(struct tty_struct *tty)
2003 {
2004 struct usb_serial_port *port = tty->driver_data;
2005 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2006 int status;
2007
2008 if (edge_port == NULL)
2009 return;
2010
2011 /* if we are implementing XON/XOFF, send the stop character */
2012 if (I_IXOFF(tty)) {
2013 unsigned char stop_char = STOP_CHAR(tty);
2014 status = edge_write(tty, port, &stop_char, 1);
2015 if (status <= 0) {
2016 dev_err(&port->dev, "%s - failed to write stop character, %d\n", __func__, status);
2017 }
2018 }
2019
2020 /* if we are implementing RTS/CTS, stop reads */
2021 /* and the Edgeport will clear the RTS line */
2022 if (C_CRTSCTS(tty))
2023 stop_read(edge_port);
2024
2025 }
2026
2027 static void edge_unthrottle(struct tty_struct *tty)
2028 {
2029 struct usb_serial_port *port = tty->driver_data;
2030 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2031 int status;
2032
2033 if (edge_port == NULL)
2034 return;
2035
2036 /* if we are implementing XON/XOFF, send the start character */
2037 if (I_IXOFF(tty)) {
2038 unsigned char start_char = START_CHAR(tty);
2039 status = edge_write(tty, port, &start_char, 1);
2040 if (status <= 0) {
2041 dev_err(&port->dev, "%s - failed to write start character, %d\n", __func__, status);
2042 }
2043 }
2044 /* if we are implementing RTS/CTS, restart reads */
2045 /* are the Edgeport will assert the RTS line */
2046 if (C_CRTSCTS(tty)) {
2047 status = restart_read(edge_port);
2048 if (status)
2049 dev_err(&port->dev,
2050 "%s - read bulk usb_submit_urb failed: %d\n",
2051 __func__, status);
2052 }
2053
2054 }
2055
2056 static void stop_read(struct edgeport_port *edge_port)
2057 {
2058 unsigned long flags;
2059
2060 spin_lock_irqsave(&edge_port->ep_lock, flags);
2061
2062 if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING)
2063 edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING;
2064 edge_port->shadow_mcr &= ~MCR_RTS;
2065
2066 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2067 }
2068
2069 static int restart_read(struct edgeport_port *edge_port)
2070 {
2071 struct urb *urb;
2072 int status = 0;
2073 unsigned long flags;
2074
2075 spin_lock_irqsave(&edge_port->ep_lock, flags);
2076
2077 if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) {
2078 urb = edge_port->port->read_urb;
2079 status = usb_submit_urb(urb, GFP_ATOMIC);
2080 }
2081 edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;
2082 edge_port->shadow_mcr |= MCR_RTS;
2083
2084 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2085
2086 return status;
2087 }
2088
2089 static void change_port_settings(struct tty_struct *tty,
2090 struct edgeport_port *edge_port, struct ktermios *old_termios)
2091 {
2092 struct device *dev = &edge_port->port->dev;
2093 struct ump_uart_config *config;
2094 int baud;
2095 unsigned cflag;
2096 int status;
2097 int port_number = edge_port->port->port_number;
2098
2099 config = kmalloc (sizeof (*config), GFP_KERNEL);
2100 if (!config) {
2101 tty->termios = *old_termios;
2102 return;
2103 }
2104
2105 cflag = tty->termios.c_cflag;
2106
2107 config->wFlags = 0;
2108
2109 /* These flags must be set */
2110 config->wFlags |= UMP_MASK_UART_FLAGS_RECEIVE_MS_INT;
2111 config->wFlags |= UMP_MASK_UART_FLAGS_AUTO_START_ON_ERR;
2112 config->bUartMode = (__u8)(edge_port->bUartMode);
2113
2114 switch (cflag & CSIZE) {
2115 case CS5:
2116 config->bDataBits = UMP_UART_CHAR5BITS;
2117 dev_dbg(dev, "%s - data bits = 5\n", __func__);
2118 break;
2119 case CS6:
2120 config->bDataBits = UMP_UART_CHAR6BITS;
2121 dev_dbg(dev, "%s - data bits = 6\n", __func__);
2122 break;
2123 case CS7:
2124 config->bDataBits = UMP_UART_CHAR7BITS;
2125 dev_dbg(dev, "%s - data bits = 7\n", __func__);
2126 break;
2127 default:
2128 case CS8:
2129 config->bDataBits = UMP_UART_CHAR8BITS;
2130 dev_dbg(dev, "%s - data bits = 8\n", __func__);
2131 break;
2132 }
2133
2134 if (cflag & PARENB) {
2135 if (cflag & PARODD) {
2136 config->wFlags |= UMP_MASK_UART_FLAGS_PARITY;
2137 config->bParity = UMP_UART_ODDPARITY;
2138 dev_dbg(dev, "%s - parity = odd\n", __func__);
2139 } else {
2140 config->wFlags |= UMP_MASK_UART_FLAGS_PARITY;
2141 config->bParity = UMP_UART_EVENPARITY;
2142 dev_dbg(dev, "%s - parity = even\n", __func__);
2143 }
2144 } else {
2145 config->bParity = UMP_UART_NOPARITY;
2146 dev_dbg(dev, "%s - parity = none\n", __func__);
2147 }
2148
2149 if (cflag & CSTOPB) {
2150 config->bStopBits = UMP_UART_STOPBIT2;
2151 dev_dbg(dev, "%s - stop bits = 2\n", __func__);
2152 } else {
2153 config->bStopBits = UMP_UART_STOPBIT1;
2154 dev_dbg(dev, "%s - stop bits = 1\n", __func__);
2155 }
2156
2157 /* figure out the flow control settings */
2158 if (cflag & CRTSCTS) {
2159 config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X_CTS_FLOW;
2160 config->wFlags |= UMP_MASK_UART_FLAGS_RTS_FLOW;
2161 dev_dbg(dev, "%s - RTS/CTS is enabled\n", __func__);
2162 } else {
2163 dev_dbg(dev, "%s - RTS/CTS is disabled\n", __func__);
2164 tty->hw_stopped = 0;
2165 restart_read(edge_port);
2166 }
2167
2168 /* if we are implementing XON/XOFF, set the start and stop
2169 character in the device */
2170 config->cXon = START_CHAR(tty);
2171 config->cXoff = STOP_CHAR(tty);
2172
2173 /* if we are implementing INBOUND XON/XOFF */
2174 if (I_IXOFF(tty)) {
2175 config->wFlags |= UMP_MASK_UART_FLAGS_IN_X;
2176 dev_dbg(dev, "%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n",
2177 __func__, config->cXon, config->cXoff);
2178 } else
2179 dev_dbg(dev, "%s - INBOUND XON/XOFF is disabled\n", __func__);
2180
2181 /* if we are implementing OUTBOUND XON/XOFF */
2182 if (I_IXON(tty)) {
2183 config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X;
2184 dev_dbg(dev, "%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n",
2185 __func__, config->cXon, config->cXoff);
2186 } else
2187 dev_dbg(dev, "%s - OUTBOUND XON/XOFF is disabled\n", __func__);
2188
2189 tty->termios.c_cflag &= ~CMSPAR;
2190
2191 /* Round the baud rate */
2192 baud = tty_get_baud_rate(tty);
2193 if (!baud) {
2194 /* pick a default, any default... */
2195 baud = 9600;
2196 } else
2197 tty_encode_baud_rate(tty, baud, baud);
2198
2199 edge_port->baud_rate = baud;
2200 config->wBaudRate = (__u16)((461550L + baud/2) / baud);
2201
2202 /* FIXME: Recompute actual baud from divisor here */
2203
2204 dev_dbg(dev, "%s - baud rate = %d, wBaudRate = %d\n", __func__, baud, config->wBaudRate);
2205
2206 dev_dbg(dev, "wBaudRate: %d\n", (int)(461550L / config->wBaudRate));
2207 dev_dbg(dev, "wFlags: 0x%x\n", config->wFlags);
2208 dev_dbg(dev, "bDataBits: %d\n", config->bDataBits);
2209 dev_dbg(dev, "bParity: %d\n", config->bParity);
2210 dev_dbg(dev, "bStopBits: %d\n", config->bStopBits);
2211 dev_dbg(dev, "cXon: %d\n", config->cXon);
2212 dev_dbg(dev, "cXoff: %d\n", config->cXoff);
2213 dev_dbg(dev, "bUartMode: %d\n", config->bUartMode);
2214
2215 /* move the word values into big endian mode */
2216 cpu_to_be16s(&config->wFlags);
2217 cpu_to_be16s(&config->wBaudRate);
2218
2219 status = send_cmd(edge_port->port->serial->dev, UMPC_SET_CONFIG,
2220 (__u8)(UMPM_UART1_PORT + port_number),
2221 0, (__u8 *)config, sizeof(*config));
2222 if (status)
2223 dev_dbg(dev, "%s - error %d when trying to write config to device\n",
2224 __func__, status);
2225 kfree(config);
2226 }
2227
2228 static void edge_set_termios(struct tty_struct *tty,
2229 struct usb_serial_port *port, struct ktermios *old_termios)
2230 {
2231 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2232 unsigned int cflag;
2233
2234 cflag = tty->termios.c_cflag;
2235
2236 dev_dbg(&port->dev, "%s - clfag %08x iflag %08x\n", __func__,
2237 tty->termios.c_cflag, tty->termios.c_iflag);
2238 dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__,
2239 old_termios->c_cflag, old_termios->c_iflag);
2240
2241 if (edge_port == NULL)
2242 return;
2243 /* change the port settings to the new ones specified */
2244 change_port_settings(tty, edge_port, old_termios);
2245 }
2246
2247 static int edge_tiocmset(struct tty_struct *tty,
2248 unsigned int set, unsigned int clear)
2249 {
2250 struct usb_serial_port *port = tty->driver_data;
2251 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2252 unsigned int mcr;
2253 unsigned long flags;
2254
2255 spin_lock_irqsave(&edge_port->ep_lock, flags);
2256 mcr = edge_port->shadow_mcr;
2257 if (set & TIOCM_RTS)
2258 mcr |= MCR_RTS;
2259 if (set & TIOCM_DTR)
2260 mcr |= MCR_DTR;
2261 if (set & TIOCM_LOOP)
2262 mcr |= MCR_LOOPBACK;
2263
2264 if (clear & TIOCM_RTS)
2265 mcr &= ~MCR_RTS;
2266 if (clear & TIOCM_DTR)
2267 mcr &= ~MCR_DTR;
2268 if (clear & TIOCM_LOOP)
2269 mcr &= ~MCR_LOOPBACK;
2270
2271 edge_port->shadow_mcr = mcr;
2272 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2273
2274 restore_mcr(edge_port, mcr);
2275 return 0;
2276 }
2277
2278 static int edge_tiocmget(struct tty_struct *tty)
2279 {
2280 struct usb_serial_port *port = tty->driver_data;
2281 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2282 unsigned int result = 0;
2283 unsigned int msr;
2284 unsigned int mcr;
2285 unsigned long flags;
2286
2287 spin_lock_irqsave(&edge_port->ep_lock, flags);
2288
2289 msr = edge_port->shadow_msr;
2290 mcr = edge_port->shadow_mcr;
2291 result = ((mcr & MCR_DTR) ? TIOCM_DTR: 0) /* 0x002 */
2292 | ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */
2293 | ((msr & EDGEPORT_MSR_CTS) ? TIOCM_CTS: 0) /* 0x020 */
2294 | ((msr & EDGEPORT_MSR_CD) ? TIOCM_CAR: 0) /* 0x040 */
2295 | ((msr & EDGEPORT_MSR_RI) ? TIOCM_RI: 0) /* 0x080 */
2296 | ((msr & EDGEPORT_MSR_DSR) ? TIOCM_DSR: 0); /* 0x100 */
2297
2298
2299 dev_dbg(&port->dev, "%s -- %x\n", __func__, result);
2300 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2301
2302 return result;
2303 }
2304
2305 static int get_serial_info(struct edgeport_port *edge_port,
2306 struct serial_struct __user *retinfo)
2307 {
2308 struct serial_struct tmp;
2309 unsigned cwait;
2310
2311 if (!retinfo)
2312 return -EFAULT;
2313
2314 cwait = edge_port->port->port.closing_wait;
2315 if (cwait != ASYNC_CLOSING_WAIT_NONE)
2316 cwait = jiffies_to_msecs(cwait) / 10;
2317
2318 memset(&tmp, 0, sizeof(tmp));
2319
2320 tmp.type = PORT_16550A;
2321 tmp.line = edge_port->port->minor;
2322 tmp.port = edge_port->port->port_number;
2323 tmp.irq = 0;
2324 tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
2325 tmp.xmit_fifo_size = edge_port->port->bulk_out_size;
2326 tmp.baud_base = 9600;
2327 tmp.close_delay = 5*HZ;
2328 tmp.closing_wait = cwait;
2329
2330 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
2331 return -EFAULT;
2332 return 0;
2333 }
2334
2335 static int edge_ioctl(struct tty_struct *tty,
2336 unsigned int cmd, unsigned long arg)
2337 {
2338 struct usb_serial_port *port = tty->driver_data;
2339 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2340
2341 switch (cmd) {
2342 case TIOCGSERIAL:
2343 dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__);
2344 return get_serial_info(edge_port,
2345 (struct serial_struct __user *) arg);
2346 }
2347 return -ENOIOCTLCMD;
2348 }
2349
2350 static void edge_break(struct tty_struct *tty, int break_state)
2351 {
2352 struct usb_serial_port *port = tty->driver_data;
2353 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2354 int status;
2355 int bv = 0; /* Off */
2356
2357 if (break_state == -1)
2358 bv = 1; /* On */
2359 status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv);
2360 if (status)
2361 dev_dbg(&port->dev, "%s - error %d sending break set/clear command.\n",
2362 __func__, status);
2363 }
2364
2365 static int edge_startup(struct usb_serial *serial)
2366 {
2367 struct edgeport_serial *edge_serial;
2368 int status;
2369
2370 /* create our private serial structure */
2371 edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL);
2372 if (!edge_serial)
2373 return -ENOMEM;
2374
2375 mutex_init(&edge_serial->es_lock);
2376 edge_serial->serial = serial;
2377 usb_set_serial_data(serial, edge_serial);
2378
2379 status = download_fw(edge_serial);
2380 if (status) {
2381 kfree(edge_serial);
2382 return status;
2383 }
2384
2385 return 0;
2386 }
2387
2388 static void edge_disconnect(struct usb_serial *serial)
2389 {
2390 }
2391
2392 static void edge_release(struct usb_serial *serial)
2393 {
2394 kfree(usb_get_serial_data(serial));
2395 }
2396
2397 static int edge_port_probe(struct usb_serial_port *port)
2398 {
2399 struct edgeport_port *edge_port;
2400 int ret;
2401
2402 edge_port = kzalloc(sizeof(*edge_port), GFP_KERNEL);
2403 if (!edge_port)
2404 return -ENOMEM;
2405
2406 spin_lock_init(&edge_port->ep_lock);
2407 edge_port->port = port;
2408 edge_port->edge_serial = usb_get_serial_data(port->serial);
2409 edge_port->bUartMode = default_uart_mode;
2410
2411 switch (port->port_number) {
2412 case 0:
2413 edge_port->uart_base = UMPMEM_BASE_UART1;
2414 edge_port->dma_address = UMPD_OEDB1_ADDRESS;
2415 break;
2416 case 1:
2417 edge_port->uart_base = UMPMEM_BASE_UART2;
2418 edge_port->dma_address = UMPD_OEDB2_ADDRESS;
2419 break;
2420 default:
2421 dev_err(&port->dev, "unknown port number\n");
2422 ret = -ENODEV;
2423 goto err;
2424 }
2425
2426 dev_dbg(&port->dev,
2427 "%s - port_number = %d, uart_base = %04x, dma_address = %04x\n",
2428 __func__, port->port_number, edge_port->uart_base,
2429 edge_port->dma_address);
2430
2431 usb_set_serial_port_data(port, edge_port);
2432
2433 ret = edge_create_sysfs_attrs(port);
2434 if (ret)
2435 goto err;
2436
2437 port->port.closing_wait = msecs_to_jiffies(closing_wait * 10);
2438 port->port.drain_delay = 1;
2439
2440 return 0;
2441 err:
2442 kfree(edge_port);
2443
2444 return ret;
2445 }
2446
2447 static int edge_port_remove(struct usb_serial_port *port)
2448 {
2449 struct edgeport_port *edge_port;
2450
2451 edge_port = usb_get_serial_port_data(port);
2452 edge_remove_sysfs_attrs(port);
2453 kfree(edge_port);
2454
2455 return 0;
2456 }
2457
2458 /* Sysfs Attributes */
2459
2460 static ssize_t uart_mode_show(struct device *dev,
2461 struct device_attribute *attr, char *buf)
2462 {
2463 struct usb_serial_port *port = to_usb_serial_port(dev);
2464 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2465
2466 return sprintf(buf, "%d\n", edge_port->bUartMode);
2467 }
2468
2469 static ssize_t uart_mode_store(struct device *dev,
2470 struct device_attribute *attr, const char *valbuf, size_t count)
2471 {
2472 struct usb_serial_port *port = to_usb_serial_port(dev);
2473 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2474 unsigned int v = simple_strtoul(valbuf, NULL, 0);
2475
2476 dev_dbg(dev, "%s: setting uart_mode = %d\n", __func__, v);
2477
2478 if (v < 256)
2479 edge_port->bUartMode = v;
2480 else
2481 dev_err(dev, "%s - uart_mode %d is invalid\n", __func__, v);
2482
2483 return count;
2484 }
2485 static DEVICE_ATTR_RW(uart_mode);
2486
2487 static int edge_create_sysfs_attrs(struct usb_serial_port *port)
2488 {
2489 return device_create_file(&port->dev, &dev_attr_uart_mode);
2490 }
2491
2492 static int edge_remove_sysfs_attrs(struct usb_serial_port *port)
2493 {
2494 device_remove_file(&port->dev, &dev_attr_uart_mode);
2495 return 0;
2496 }
2497
2498
2499 static struct usb_serial_driver edgeport_1port_device = {
2500 .driver = {
2501 .owner = THIS_MODULE,
2502 .name = "edgeport_ti_1",
2503 },
2504 .description = "Edgeport TI 1 port adapter",
2505 .id_table = edgeport_1port_id_table,
2506 .num_ports = 1,
2507 .open = edge_open,
2508 .close = edge_close,
2509 .throttle = edge_throttle,
2510 .unthrottle = edge_unthrottle,
2511 .attach = edge_startup,
2512 .disconnect = edge_disconnect,
2513 .release = edge_release,
2514 .port_probe = edge_port_probe,
2515 .port_remove = edge_port_remove,
2516 .ioctl = edge_ioctl,
2517 .set_termios = edge_set_termios,
2518 .tiocmget = edge_tiocmget,
2519 .tiocmset = edge_tiocmset,
2520 .tiocmiwait = usb_serial_generic_tiocmiwait,
2521 .get_icount = usb_serial_generic_get_icount,
2522 .write = edge_write,
2523 .write_room = edge_write_room,
2524 .chars_in_buffer = edge_chars_in_buffer,
2525 .tx_empty = edge_tx_empty,
2526 .break_ctl = edge_break,
2527 .read_int_callback = edge_interrupt_callback,
2528 .read_bulk_callback = edge_bulk_in_callback,
2529 .write_bulk_callback = edge_bulk_out_callback,
2530 };
2531
2532 static struct usb_serial_driver edgeport_2port_device = {
2533 .driver = {
2534 .owner = THIS_MODULE,
2535 .name = "edgeport_ti_2",
2536 },
2537 .description = "Edgeport TI 2 port adapter",
2538 .id_table = edgeport_2port_id_table,
2539 .num_ports = 2,
2540 .open = edge_open,
2541 .close = edge_close,
2542 .throttle = edge_throttle,
2543 .unthrottle = edge_unthrottle,
2544 .attach = edge_startup,
2545 .disconnect = edge_disconnect,
2546 .release = edge_release,
2547 .port_probe = edge_port_probe,
2548 .port_remove = edge_port_remove,
2549 .ioctl = edge_ioctl,
2550 .set_termios = edge_set_termios,
2551 .tiocmget = edge_tiocmget,
2552 .tiocmset = edge_tiocmset,
2553 .tiocmiwait = usb_serial_generic_tiocmiwait,
2554 .get_icount = usb_serial_generic_get_icount,
2555 .write = edge_write,
2556 .write_room = edge_write_room,
2557 .chars_in_buffer = edge_chars_in_buffer,
2558 .tx_empty = edge_tx_empty,
2559 .break_ctl = edge_break,
2560 .read_int_callback = edge_interrupt_callback,
2561 .read_bulk_callback = edge_bulk_in_callback,
2562 .write_bulk_callback = edge_bulk_out_callback,
2563 };
2564
2565 static struct usb_serial_driver * const serial_drivers[] = {
2566 &edgeport_1port_device, &edgeport_2port_device, NULL
2567 };
2568
2569 module_usb_serial_driver(serial_drivers, id_table_combined);
2570
2571 MODULE_AUTHOR(DRIVER_AUTHOR);
2572 MODULE_DESCRIPTION(DRIVER_DESC);
2573 MODULE_LICENSE("GPL");
2574 MODULE_FIRMWARE("edgeport/down3.bin");
2575
2576 module_param(closing_wait, int, S_IRUGO | S_IWUSR);
2577 MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs");
2578
2579 module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR);
2580 MODULE_PARM_DESC(ignore_cpu_rev,
2581 "Ignore the cpu revision when connecting to a device");
2582
2583 module_param(default_uart_mode, int, S_IRUGO | S_IWUSR);
2584 MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ...");
Linux with added FPC-III support