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