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USB: iuu_phoenix: fix sysfs-attribute creation
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / usb / serial / io_ti.c
CommitLineData
1da177e4
LT		 1/*
2 * Edgeport USB Serial Converter driver
3 *
4 * Copyright (C) 2000-2002 Inside Out Networks, All rights reserved.
5 * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * Supports the following devices:
13 * EP/1 EP/2 EP/4 EP/21 EP/22 EP/221 EP/42 EP/421 WATCHPORT
14 *
15 * For questions or problems with this driver, contact Inside Out
16 * Networks technical support, or Peter Berger <pberger@brimson.com>,
17 * or Al Borchers <alborchers@steinerpoint.com>.
1da177e4
LT		 18 */
19
1da177e4
LT		 20#include <linux/kernel.h>
21#include <linux/jiffies.h>
22#include <linux/errno.h>
23#include <linux/init.h>
24#include <linux/slab.h>
25#include <linux/tty.h>
26#include <linux/tty_driver.h>
27#include <linux/tty_flip.h>
28#include <linux/module.h>
29#include <linux/spinlock.h>
241ca64f 30#include <linux/mutex.h>
1da177e4 31#include <linux/serial.h>
d733cec1 32#include <linux/kfifo.h>
1da177e4 33#include <linux/ioctl.h>
d12b219a 34#include <linux/firmware.h>
2742fd88 35#include <linux/uaccess.h>
1da177e4 36#include <linux/usb.h>
a969888c 37#include <linux/usb/serial.h>
1da177e4 38
1da177e4
LT		 39#include "io_16654.h"
40#include "io_usbvend.h"
41#include "io_ti.h"
42
43/*
44 * Version Information
45 */
fc4cbd75 46#define DRIVER_VERSION "v0.7mode043006"
1da177e4
LT		 47#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com> and David Iacovelli"
48#define DRIVER_DESC "Edgeport USB Serial Driver"
49
1da177e4
LT		 50#define EPROM_PAGE_SIZE 64
51
52
1da177e4
LT		 53/* different hardware types */
54#define HARDWARE_TYPE_930 0
55#define HARDWARE_TYPE_TIUMP 1
56
2742fd88
AC		 57/* IOCTL_PRIVATE_TI_GET_MODE Definitions */
58#define TI_MODE_CONFIGURING 0 /* Device has not entered start device */
59#define TI_MODE_BOOT 1 /* Staying in boot mode */
60#define TI_MODE_DOWNLOAD 2 /* Made it to download mode */
61#define TI_MODE_TRANSITIONING 3 /* Currently in boot mode but
62 transitioning to download mode */
1da177e4
LT		 63
64/* read urb state */
65#define EDGE_READ_URB_RUNNING 0
66#define EDGE_READ_URB_STOPPING 1
67#define EDGE_READ_URB_STOPPED 2
68
1da177e4
LT		 69#define EDGE_CLOSING_WAIT 4000 /* in .01 sec */
70
71#define EDGE_OUT_BUF_SIZE 1024
72
73
74/* Product information read from the Edgeport */
2742fd88
AC		 75struct product_info {
76 int TiMode; /* Current TI Mode */
77 __u8 hardware_type; /* Type of hardware */
1da177e4
LT		 78} __attribute__((packed));
79
1da177e4
LT		 80struct edgeport_port {
81 __u16 uart_base;
82 __u16 dma_address;
83 __u8 shadow_msr;
84 __u8 shadow_mcr;
85 __u8 shadow_lsr;
86 __u8 lsr_mask;
19af5cdb 87 __u32 ump_read_timeout; /* Number of milliseconds the UMP will
1da177e4
LT		 88 wait without data before completing
89 a read short */
90 int baud_rate;
91 int close_pending;
92 int lsr_event;
1da177e4
LT		 93 struct async_icount icount;
94 wait_queue_head_t delta_msr_wait; /* for handling sleeping while
95 waiting for msr change to
96 happen */
97 struct edgeport_serial *edge_serial;
98 struct usb_serial_port *port;
2742fd88 99 __u8 bUartMode; /* Port type, 0: RS232, etc. */
1da177e4
LT		 100 spinlock_t ep_lock;
101 int ep_read_urb_state;
102 int ep_write_urb_in_use;
d733cec1 103 struct kfifo write_fifo;
1da177e4
LT		 104};
105
106struct edgeport_serial {
107 struct product_info product_info;
2742fd88
AC		 108 u8 TI_I2C_Type; /* Type of I2C in UMP */
109 u8 TiReadI2C; /* Set to TRUE if we have read the
110 I2c in Boot Mode */
241ca64f 111 struct mutex es_lock;
1da177e4
LT		 112 int num_ports_open;
113 struct usb_serial *serial;
114};
115
116
117/* Devices that this driver supports */
7d40d7e8 118static const struct usb_device_id edgeport_1port_id_table[] = {
1da177e4
LT		 119 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) },
120 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) },
121 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) },
122 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) },
123 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) },
124 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) },
125 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) },
126 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) },
127 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) },
128 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) },
129 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) },
130 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) },
131 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) },
132 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) },
133 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) },
134 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) },
135 { }
136};
137
7d40d7e8 138static const struct usb_device_id edgeport_2port_id_table[] = {
1da177e4
LT		 139 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) },
140 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) },
141 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) },
142 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) },
143 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) },
144 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) },
145 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) },
146 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) },
147 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) },
148 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) },
149 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) },
150 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) },
fc4cbd75 151 /* The 4, 8 and 16 port devices show up as multiple 2 port devices */
1da177e4 152 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) },
fc4cbd75
MP		 153 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) },
154 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) },
155 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) },
156 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) },
1da177e4
LT		 157 { }
158};
159
160/* Devices that this driver supports */
7d40d7e8 161static const struct usb_device_id id_table_combined[] = {
1da177e4
LT		 162 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) },
163 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) },
164 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) },
165 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) },
166 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) },
167 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) },
168 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) },
169 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) },
170 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) },
171 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) },
172 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) },
173 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) },
174 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) },
175 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) },
176 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) },
177 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) },
178 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) },
179 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) },
180 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) },
181 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) },
182 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) },
183 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) },
184 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) },
185 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) },
186 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) },
187 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) },
188 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) },
189 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) },
190 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) },
fc4cbd75
MP		 191 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) },
192 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) },
193 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) },
194 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) },
1da177e4
LT		 195 { }
196};
197
2742fd88 198MODULE_DEVICE_TABLE(usb, id_table_combined);
1da177e4 199
d12b219a
JS		 200static unsigned char OperationalMajorVersion;
201static unsigned char OperationalMinorVersion;
202static unsigned short OperationalBuildNumber;
1da177e4 203
1da177e4 204static int closing_wait = EDGE_CLOSING_WAIT;
90ab5ee9 205static bool ignore_cpu_rev;
2742fd88 206static int default_uart_mode; /* RS232 */
1da177e4 207
2742fd88
AC		 208static void edge_tty_recv(struct device *dev, struct tty_struct *tty,
209 unsigned char *data, int length);
1da177e4
LT		 210
211static void stop_read(struct edgeport_port *edge_port);
212static int restart_read(struct edgeport_port *edge_port);
213
95da310e
AC		 214static void edge_set_termios(struct tty_struct *tty,
215 struct usb_serial_port *port, struct ktermios *old_termios);
216static void edge_send(struct tty_struct *tty);
1da177e4 217
fc4cbd75
MP		 218/* sysfs attributes */
219static int edge_create_sysfs_attrs(struct usb_serial_port *port);
220static int edge_remove_sysfs_attrs(struct usb_serial_port *port);
221
1da177e4 222
2742fd88
AC		 223static int ti_vread_sync(struct usb_device *dev, __u8 request,
224 __u16 value, __u16 index, u8 *data, int size)
1da177e4
LT		 225{
226 int status;
227
2742fd88
AC		 228 status = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request,
229 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN),
230 value, index, data, size, 1000);
1da177e4
LT		 231 if (status < 0)
232 return status;
233 if (status != size) {
67e6da70
GKH		 234 dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n",
235 __func__, size, status);
1da177e4
LT		 236 return -ECOMM;
237 }
238 return 0;
239}
240
2742fd88
AC		 241static int ti_vsend_sync(struct usb_device *dev, __u8 request,
242 __u16 value, __u16 index, u8 *data, int size)
1da177e4
LT		 243{
244 int status;
245
2742fd88
AC		 246 status = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,
247 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT),
248 value, index, data, size, 1000);
1da177e4
LT		 249 if (status < 0)
250 return status;
251 if (status != size) {
67e6da70
GKH		 252 dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n",
253 __func__, size, status);
1da177e4
LT		 254 return -ECOMM;
255 }
256 return 0;
257}
258
2742fd88 259static int send_cmd(struct usb_device *dev, __u8 command,
1da177e4
LT		 260 __u8 moduleid, __u16 value, u8 *data,
261 int size)
262{
2742fd88 263 return ti_vsend_sync(dev, command, value, moduleid, data, size);
1da177e4
LT		 264}
265
266/* clear tx/rx buffers and fifo in TI UMP */
2742fd88 267static int purge_port(struct usb_serial_port *port, __u16 mask)
1da177e4
LT		 268{
269 int port_number = port->number - port->serial->minor;
270
67e6da70 271 dev_dbg(&port->dev, "%s - port %d, mask %x\n", __func__, port_number, mask);
1da177e4 272
2742fd88 273 return send_cmd(port->serial->dev,
1da177e4
LT		 274 UMPC_PURGE_PORT,
275 (__u8)(UMPM_UART1_PORT + port_number),
276 mask,
277 NULL,
278 0);
279}
280
281/**
2742fd88 282 * read_download_mem - Read edgeport memory from TI chip
1da177e4
LT		 283 * @dev: usb device pointer
284 * @start_address: Device CPU address at which to read
285 * @length: Length of above data
286 * @address_type: Can read both XDATA and I2C
287 * @buffer: pointer to input data buffer
288 */
2742fd88 289static int read_download_mem(struct usb_device *dev, int start_address,
1da177e4
LT		 290 int length, __u8 address_type, __u8 *buffer)
291{
292 int status = 0;
293 __u8 read_length;
294 __be16 be_start_address;
2742fd88 295
67e6da70 296 dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, length);
1da177e4
LT		 297
298 /* Read in blocks of 64 bytes
299 * (TI firmware can't handle more than 64 byte reads)
300 */
301 while (length) {
302 if (length > 64)
2742fd88 303 read_length = 64;
1da177e4
LT		 304 else
305 read_length = (__u8)length;
306
307 if (read_length > 1) {
67e6da70 308 dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, read_length);
1da177e4 309 }
2742fd88
AC		 310 be_start_address = cpu_to_be16(start_address);
311 status = ti_vread_sync(dev, UMPC_MEMORY_READ,
312 (__u16)address_type,
313 (__force __u16)be_start_address,
314 buffer, read_length);
1da177e4
LT		 315
316 if (status) {
67e6da70 317 dev_dbg(&dev->dev, "%s - ERROR %x\n", __func__, status);
1da177e4
LT		 318 return status;
319 }
320
2742fd88 321 if (read_length > 1)
59d33f2f 322 usb_serial_debug_data(&dev->dev, __func__, read_length, buffer);
1da177e4
LT		 323
324 /* Update pointers/length */
325 start_address += read_length;
326 buffer += read_length;
327 length -= read_length;
328 }
2742fd88 329
1da177e4
LT		 330 return status;
331}
332
2742fd88
AC		 333static int read_ram(struct usb_device *dev, int start_address,
334 int length, __u8 *buffer)
1da177e4 335{
2742fd88
AC		 336 return read_download_mem(dev, start_address, length,
337 DTK_ADDR_SPACE_XDATA, buffer);
1da177e4
LT		 338}
339
340/* Read edgeport memory to a given block */
2742fd88
AC		 341static int read_boot_mem(struct edgeport_serial *serial,
342 int start_address, int length, __u8 *buffer)
1da177e4
LT		 343{
344 int status = 0;
345 int i;
346
2742fd88
AC		 347 for (i = 0; i < length; i++) {
348 status = ti_vread_sync(serial->serial->dev,
349 UMPC_MEMORY_READ, serial->TI_I2C_Type,
350 (__u16)(start_address+i), &buffer[i], 0x01);
1da177e4 351 if (status) {
67e6da70 352 dev_dbg(&serial->serial->dev->dev, "%s - ERROR %x\n", __func__, status);
1da177e4
LT		 353 return status;
354 }
355 }
356
67e6da70
GKH		 357 dev_dbg(&serial->serial->dev->dev, "%s - start_address = %x, length = %d\n",
358 __func__, start_address, length);
59d33f2f 359 usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer);
1da177e4
LT		 360
361 serial->TiReadI2C = 1;
362
363 return status;
364}
365
366/* Write given block to TI EPROM memory */
2742fd88
AC		 367static int write_boot_mem(struct edgeport_serial *serial,
368 int start_address, int length, __u8 *buffer)
1da177e4
LT		 369{
370 int status = 0;
371 int i;
e9305d2f 372 u8 *temp;
1da177e4
LT		 373
374 /* Must do a read before write */
375 if (!serial->TiReadI2C) {
e9305d2f
JH		 376 temp = kmalloc(1, GFP_KERNEL);
377 if (!temp) {
378 dev_err(&serial->serial->dev->dev,
379 "%s - out of memory\n", __func__);
380 return -ENOMEM;
381 }
382 status = read_boot_mem(serial, 0, 1, temp);
383 kfree(temp);
1da177e4
LT		 384 if (status)
385 return status;
386 }
387
2742fd88
AC		 388 for (i = 0; i < length; ++i) {
389 status = ti_vsend_sync(serial->serial->dev,
390 UMPC_MEMORY_WRITE, buffer[i],
391 (__u16)(i + start_address), NULL, 0);
1da177e4
LT		 392 if (status)
393 return status;
394 }
395
67e6da70 396 dev_dbg(&serial->serial->dev->dev, "%s - start_sddr = %x, length = %d\n", __func__, start_address, length);
59d33f2f 397 usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer);
1da177e4
LT		 398
399 return status;
400}
401
402
403/* Write edgeport I2C memory to TI chip */
2742fd88
AC		 404static int write_i2c_mem(struct edgeport_serial *serial,
405 int start_address, int length, __u8 address_type, __u8 *buffer)
1da177e4 406{
67e6da70 407 struct device *dev = &serial->serial->dev->dev;
1da177e4
LT		 408 int status = 0;
409 int write_length;
410 __be16 be_start_address;
411
412 /* We can only send a maximum of 1 aligned byte page at a time */
2742fd88 413
25985edc 414 /* calculate the number of bytes left in the first page */
2742fd88
AC		 415 write_length = EPROM_PAGE_SIZE -
416 (start_address & (EPROM_PAGE_SIZE - 1));
1da177e4
LT		 417
418 if (write_length > length)
419 write_length = length;
420
67e6da70
GKH		 421 dev_dbg(dev, "%s - BytesInFirstPage Addr = %x, length = %d\n",
422 __func__, start_address, write_length);
59d33f2f 423 usb_serial_debug_data(dev, __func__, write_length, buffer);
1da177e4
LT		 424
425 /* Write first page */
2742fd88
AC		 426 be_start_address = cpu_to_be16(start_address);
427 status = ti_vsend_sync(serial->serial->dev,
428 UMPC_MEMORY_WRITE, (__u16)address_type,
429 (__force __u16)be_start_address,
430 buffer, write_length);
1da177e4 431 if (status) {
67e6da70 432 dev_dbg(dev, "%s - ERROR %d\n", __func__, status);
1da177e4
LT		 433 return status;
434 }
435
436 length -= write_length;
437 start_address += write_length;
438 buffer += write_length;
439
2742fd88
AC		 440 /* We should be aligned now -- can write
441 max page size bytes at a time */
1da177e4
LT		 442 while (length) {
443 if (length > EPROM_PAGE_SIZE)
444 write_length = EPROM_PAGE_SIZE;
445 else
446 write_length = length;
447
67e6da70
GKH		 448 dev_dbg(dev, "%s - Page Write Addr = %x, length = %d\n",
449 __func__, start_address, write_length);
59d33f2f 450 usb_serial_debug_data(dev, __func__, write_length, buffer);
1da177e4
LT		 451
452 /* Write next page */
2742fd88
AC		 453 be_start_address = cpu_to_be16(start_address);
454 status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE,
455 (__u16)address_type,
456 (__force __u16)be_start_address,
457 buffer, write_length);
1da177e4 458 if (status) {
67e6da70 459 dev_err(dev, "%s - ERROR %d\n", __func__, status);
1da177e4
LT		 460 return status;
461 }
2742fd88 462
1da177e4
LT		 463 length -= write_length;
464 start_address += write_length;
465 buffer += write_length;
466 }
467 return status;
468}
469
470/* Examine the UMP DMA registers and LSR
2742fd88 471 *
1da177e4
LT		 472 * Check the MSBit of the X and Y DMA byte count registers.
473 * A zero in this bit indicates that the TX DMA buffers are empty
474 * then check the TX Empty bit in the UART.
475 */
2742fd88 476static int tx_active(struct edgeport_port *port)
1da177e4
LT		 477{
478 int status;
479 struct out_endpoint_desc_block *oedb;
480 __u8 *lsr;
481 int bytes_left = 0;
482
2742fd88 483 oedb = kmalloc(sizeof(*oedb), GFP_KERNEL);
1da177e4 484 if (!oedb) {
2742fd88 485 dev_err(&port->port->dev, "%s - out of memory\n", __func__);
1da177e4
LT		 486 return -ENOMEM;
487 }
488
2742fd88 489 lsr = kmalloc(1, GFP_KERNEL); /* Sigh, that's right, just one byte,
1da177e4
LT		 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 */
2742fd88
AC		 497 status = read_ram(port->port->serial->dev, port->dma_address,
498 sizeof(*oedb), (void *)oedb);
1da177e4
LT		 499 if (status)
500 goto exit_is_tx_active;
501
67e6da70 502 dev_dbg(&port->port->dev, "%s - XByteCount 0x%X\n", __func__, oedb->XByteCount);
1da177e4
LT		 503
504 /* and the LSR */
2742fd88
AC		 505 status = read_ram(port->port->serial->dev,
506 port->uart_base + UMPMEM_OFFS_UART_LSR, 1, lsr);
1da177e4
LT		 507
508 if (status)
509 goto exit_is_tx_active;
67e6da70 510 dev_dbg(&port->port->dev, "%s - LSR = 0x%X\n", __func__, *lsr);
2742fd88 511
1da177e4 512 /* If either buffer has data or we are transmitting then return TRUE */
2742fd88 513 if ((oedb->XByteCount & 0x80) != 0)
1da177e4
LT		 514 bytes_left += 64;
515
2742fd88 516 if ((*lsr & UMP_UART_LSR_TX_MASK) == 0)
1da177e4
LT		 517 bytes_left += 1;
518
519 /* We return Not Active if we get any kind of error */
520exit_is_tx_active:
67e6da70 521 dev_dbg(&port->port->dev, "%s - return %d\n", __func__, bytes_left);
1da177e4
LT		 522
523 kfree(lsr);
524 kfree(oedb);
525 return bytes_left;
526}
527
2742fd88
AC		 528static void chase_port(struct edgeport_port *port, unsigned long timeout,
529 int flush)
1da177e4
LT		 530{
531 int baud_rate;
4a90f09b 532 struct tty_struct *tty = tty_port_tty_get(&port->port->port);
af581059 533 struct usb_serial *serial = port->port->serial;
1da177e4
LT		 534 wait_queue_t wait;
535 unsigned long flags;
536
537 if (!timeout)
2742fd88 538 timeout = (HZ * EDGE_CLOSING_WAIT)/100;
1da177e4
LT		 539
540 /* wait for data to drain from the buffer */
541 spin_lock_irqsave(&port->ep_lock, flags);
542 init_waitqueue_entry(&wait, current);
543 add_wait_queue(&tty->write_wait, &wait);
544 for (;;) {
545 set_current_state(TASK_INTERRUPTIBLE);
d733cec1 546 if (kfifo_len(&port->write_fifo) == 0
1da177e4 547 || timeout == 0 || signal_pending(current)
af581059 548 || serial->disconnected)
2742fd88 549 /* disconnect */
1da177e4
LT		 550 break;
551 spin_unlock_irqrestore(&port->ep_lock, flags);
552 timeout = schedule_timeout(timeout);
553 spin_lock_irqsave(&port->ep_lock, flags);
554 }
555 set_current_state(TASK_RUNNING);
556 remove_wait_queue(&tty->write_wait, &wait);
557 if (flush)
d733cec1 558 kfifo_reset_out(&port->write_fifo);
1da177e4 559 spin_unlock_irqrestore(&port->ep_lock, flags);
4a90f09b 560 tty_kref_put(tty);
1da177e4
LT		 561
562 /* wait for data to drain from the device */
563 timeout += jiffies;
564 while ((long)(jiffies - timeout) < 0 && !signal_pending(current)
af581059 565 && !serial->disconnected) {
2742fd88
AC		 566 /* not disconnected */
567 if (!tx_active(port))
1da177e4
LT		 568 break;
569 msleep(10);
570 }
571
572 /* disconnected */
af581059 573 if (serial->disconnected)
1da177e4
LT		 574 return;
575
576 /* wait one more character time, based on baud rate */
2742fd88
AC		 577 /* (tx_active doesn't seem to wait for the last byte) */
578 baud_rate = port->baud_rate;
579 if (baud_rate == 0)
1da177e4 580 baud_rate = 50;
dfa5ec79 581 msleep(max(1, DIV_ROUND_UP(10000, baud_rate)));
1da177e4
LT		 582}
583
2742fd88 584static int choose_config(struct usb_device *dev)
1da177e4 585{
2742fd88
AC		 586 /*
587 * There may be multiple configurations on this device, in which case
588 * we would need to read and parse all of them to find out which one
589 * we want. However, we just support one config at this point,
590 * configuration # 1, which is Config Descriptor 0.
591 */
1da177e4 592
67e6da70
GKH		 593 dev_dbg(&dev->dev, "%s - Number of Interfaces = %d\n",
594 __func__, dev->config->desc.bNumInterfaces);
595 dev_dbg(&dev->dev, "%s - MAX Power = %d\n",
596 __func__, dev->config->desc.bMaxPower * 2);
1da177e4
LT		 597
598 if (dev->config->desc.bNumInterfaces != 1) {
67e6da70 599 dev_err(&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n", __func__);
1da177e4
LT		 600 return -ENODEV;
601 }
602
603 return 0;
604}
605
2742fd88
AC		 606static int read_rom(struct edgeport_serial *serial,
607 int start_address, int length, __u8 *buffer)
1da177e4
LT		 608{
609 int status;
610
611 if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) {
2742fd88 612 status = read_download_mem(serial->serial->dev,
1da177e4
LT		 613 start_address,
614 length,
615 serial->TI_I2C_Type,
616 buffer);
617 } else {
2742fd88
AC		 618 status = read_boot_mem(serial, start_address, length,
619 buffer);
1da177e4 620 }
1da177e4
LT		 621 return status;
622}
623
2742fd88
AC		 624static int write_rom(struct edgeport_serial *serial, int start_address,
625 int length, __u8 *buffer)
1da177e4
LT		 626{
627 if (serial->product_info.TiMode == TI_MODE_BOOT)
2742fd88
AC		 628 return write_boot_mem(serial, start_address, length,
629 buffer);
1da177e4
LT		 630
631 if (serial->product_info.TiMode == TI_MODE_DOWNLOAD)
2742fd88
AC		 632 return write_i2c_mem(serial, start_address, length,
633 serial->TI_I2C_Type, buffer);
1da177e4
LT		 634 return -EINVAL;
635}
636
637
638
639/* Read a descriptor header from I2C based on type */
2742fd88
AC		 640static int get_descriptor_addr(struct edgeport_serial *serial,
641 int desc_type, struct ti_i2c_desc *rom_desc)
1da177e4
LT		 642{
643 int start_address;
644 int status;
645
646 /* Search for requested descriptor in I2C */
647 start_address = 2;
648 do {
2742fd88 649 status = read_rom(serial,
1da177e4
LT		 650 start_address,
651 sizeof(struct ti_i2c_desc),
2742fd88 652 (__u8 *)rom_desc);
1da177e4
LT		 653 if (status)
654 return 0;
655
656 if (rom_desc->Type == desc_type)
657 return start_address;
658
2742fd88
AC		 659 start_address = start_address + sizeof(struct ti_i2c_desc)
660 + rom_desc->Size;
1da177e4
LT		 661
662 } while ((start_address < TI_MAX_I2C_SIZE) && rom_desc->Type);
2742fd88 663
1da177e4
LT		 664 return 0;
665}
666
667/* Validate descriptor checksum */
2742fd88 668static int valid_csum(struct ti_i2c_desc *rom_desc, __u8 *buffer)
1da177e4
LT		 669{
670 __u16 i;
671 __u8 cs = 0;
672
2742fd88 673 for (i = 0; i < rom_desc->Size; i++)
1da177e4 674 cs = (__u8)(cs + buffer[i]);
2742fd88 675
1da177e4 676 if (cs != rom_desc->CheckSum) {
67e6da70 677 pr_debug("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs);
1da177e4
LT		 678 return -EINVAL;
679 }
680 return 0;
681}
682
683/* Make sure that the I2C image is good */
2742fd88 684static int check_i2c_image(struct edgeport_serial *serial)
1da177e4
LT		 685{
686 struct device *dev = &serial->serial->dev->dev;
687 int status = 0;
688 struct ti_i2c_desc *rom_desc;
689 int start_address = 2;
690 __u8 *buffer;
691 __u16 ttype;
692
2742fd88 693 rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
1da177e4 694 if (!rom_desc) {
2742fd88 695 dev_err(dev, "%s - out of memory\n", __func__);
1da177e4
LT		 696 return -ENOMEM;
697 }
2742fd88 698 buffer = kmalloc(TI_MAX_I2C_SIZE, GFP_KERNEL);
1da177e4 699 if (!buffer) {
2742fd88
AC		 700 dev_err(dev, "%s - out of memory when allocating buffer\n",
701 __func__);
702 kfree(rom_desc);
1da177e4
LT		 703 return -ENOMEM;
704 }
705
2742fd88
AC		 706 /* Read the first byte (Signature0) must be 0x52 or 0x10 */
707 status = read_rom(serial, 0, 1, buffer);
1da177e4 708 if (status)
2742fd88 709 goto out;
1da177e4
LT		 710
711 if (*buffer != UMP5152 && *buffer != UMP3410) {
2742fd88 712 dev_err(dev, "%s - invalid buffer signature\n", __func__);
1da177e4 713 status = -ENODEV;
2742fd88 714 goto out;
1da177e4
LT		 715 }
716
717 do {
2742fd88
AC		 718 /* Validate the I2C */
719 status = read_rom(serial,
1da177e4
LT		 720 start_address,
721 sizeof(struct ti_i2c_desc),
722 (__u8 *)rom_desc);
723 if (status)
724 break;
725
2742fd88
AC		 726 if ((start_address + sizeof(struct ti_i2c_desc) +
727 rom_desc->Size) > TI_MAX_I2C_SIZE) {
1da177e4 728 status = -ENODEV;
67e6da70 729 dev_dbg(dev, "%s - structure too big, erroring out.\n", __func__);
1da177e4
LT		 730 break;
731 }
732
67e6da70 733 dev_dbg(dev, "%s Type = 0x%x\n", __func__, rom_desc->Type);
1da177e4 734
2742fd88 735 /* Skip type 2 record */
1da177e4 736 ttype = rom_desc->Type & 0x0f;
2742fd88
AC		 737 if (ttype != I2C_DESC_TYPE_FIRMWARE_BASIC
738 && ttype != I2C_DESC_TYPE_FIRMWARE_AUTO) {
739 /* Read the descriptor data */
740 status = read_rom(serial, start_address +
741 sizeof(struct ti_i2c_desc),
742 rom_desc->Size, buffer);
1da177e4
LT		 743 if (status)
744 break;
745
2742fd88 746 status = valid_csum(rom_desc, buffer);
1da177e4
LT		 747 if (status)
748 break;
749 }
2742fd88
AC		 750 start_address = start_address + sizeof(struct ti_i2c_desc) +
751 rom_desc->Size;
1da177e4 752
2742fd88
AC		 753 } while ((rom_desc->Type != I2C_DESC_TYPE_ION) &&
754 (start_address < TI_MAX_I2C_SIZE));
1da177e4 755
2742fd88
AC		 756 if ((rom_desc->Type != I2C_DESC_TYPE_ION) ||
757 (start_address > TI_MAX_I2C_SIZE))
1da177e4
LT		 758 status = -ENODEV;
759
2742fd88
AC		 760out:
761 kfree(buffer);
762 kfree(rom_desc);
1da177e4
LT		 763 return status;
764}
765
2742fd88 766static int get_manuf_info(struct edgeport_serial *serial, __u8 *buffer)
1da177e4
LT		 767{
768 int status;
769 int start_address;
770 struct ti_i2c_desc *rom_desc;
771 struct edge_ti_manuf_descriptor *desc;
67e6da70 772 struct device *dev = &serial->serial->dev->dev;
1da177e4 773
2742fd88 774 rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
1da177e4 775 if (!rom_desc) {
67e6da70 776 dev_err(dev, "%s - out of memory\n", __func__);
1da177e4
LT		 777 return -ENOMEM;
778 }
2742fd88
AC		 779 start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_ION,
780 rom_desc);
1da177e4
LT		 781
782 if (!start_address) {
67e6da70 783 dev_dbg(dev, "%s - Edge Descriptor not found in I2C\n", __func__);
1da177e4
LT		 784 status = -ENODEV;
785 goto exit;
786 }
787
2742fd88
AC		 788 /* Read the descriptor data */
789 status = read_rom(serial, start_address+sizeof(struct ti_i2c_desc),
790 rom_desc->Size, buffer);
1da177e4
LT		 791 if (status)
792 goto exit;
2742fd88
AC		 793
794 status = valid_csum(rom_desc, buffer);
795
1da177e4 796 desc = (struct edge_ti_manuf_descriptor *)buffer;
67e6da70
GKH		 797 dev_dbg(dev, "%s - IonConfig 0x%x\n", __func__, desc->IonConfig);
798 dev_dbg(dev, "%s - Version %d\n", __func__, desc->Version);
799 dev_dbg(dev, "%s - Cpu/Board 0x%x\n", __func__, desc->CpuRev_BoardRev);
800 dev_dbg(dev, "%s - NumPorts %d\n", __func__, desc->NumPorts);
801 dev_dbg(dev, "%s - NumVirtualPorts %d\n", __func__, desc->NumVirtualPorts);
802 dev_dbg(dev, "%s - TotalPorts %d\n", __func__, desc->TotalPorts);
1da177e4
LT		 803
804exit:
2742fd88 805 kfree(rom_desc);
1da177e4
LT		 806 return status;
807}
808
809/* Build firmware header used for firmware update */
2742fd88 810static int build_i2c_fw_hdr(__u8 *header, struct device *dev)
1da177e4
LT		 811{
812 __u8 *buffer;
813 int buffer_size;
814 int i;
d12b219a 815 int err;
1da177e4
LT		 816 __u8 cs = 0;
817 struct ti_i2c_desc *i2c_header;
818 struct ti_i2c_image_header *img_header;
819 struct ti_i2c_firmware_rec *firmware_rec;
d12b219a
JS		 820 const struct firmware *fw;
821 const char *fw_name = "edgeport/down3.bin";
1da177e4 822
2742fd88
AC		 823 /* In order to update the I2C firmware we must change the type 2 record
824 * to type 0xF2. This will force the UMP to come up in Boot Mode.
825 * Then while in boot mode, the driver will download the latest
826 * firmware (padded to 15.5k) into the UMP ram. And finally when the
827 * device comes back up in download mode the driver will cause the new
828 * firmware to be copied from the UMP Ram to I2C and the firmware will
829 * update the record type from 0xf2 to 0x02.
830 */
831
832 /* Allocate a 15.5k buffer + 2 bytes for version number
833 * (Firmware Record) */
834 buffer_size = (((1024 * 16) - 512 ) +
835 sizeof(struct ti_i2c_firmware_rec));
836
837 buffer = kmalloc(buffer_size, GFP_KERNEL);
1da177e4 838 if (!buffer) {
2742fd88 839 dev_err(dev, "%s - out of memory\n", __func__);
1da177e4
LT		 840 return -ENOMEM;
841 }
2742fd88 842
1da177e4 843 // Set entire image of 0xffs
2742fd88 844 memset(buffer, 0xff, buffer_size);
1da177e4 845
d12b219a
JS		 846 err = request_firmware(&fw, fw_name, dev);
847 if (err) {
d9bb03dc
GKH		 848 dev_err(dev, "Failed to load image \"%s\" err %d\n",
849 fw_name, err);
d12b219a
JS		 850 kfree(buffer);
851 return err;
852 }
853
854 /* Save Download Version Number */
855 OperationalMajorVersion = fw->data[0];
856 OperationalMinorVersion = fw->data[1];
857 OperationalBuildNumber = fw->data[2] | (fw->data[3] << 8);
858
2742fd88 859 /* Copy version number into firmware record */
1da177e4
LT		 860 firmware_rec = (struct ti_i2c_firmware_rec *)buffer;
861
d12b219a
JS		 862 firmware_rec->Ver_Major = OperationalMajorVersion;
863 firmware_rec->Ver_Minor = OperationalMinorVersion;
1da177e4 864
2742fd88 865 /* Pointer to fw_down memory image */
d12b219a 866 img_header = (struct ti_i2c_image_header *)&fw->data[4];
1da177e4 867
2742fd88 868 memcpy(buffer + sizeof(struct ti_i2c_firmware_rec),
d12b219a 869 &fw->data[4 + sizeof(struct ti_i2c_image_header)],
1da177e4
LT		 870 le16_to_cpu(img_header->Length));
871
d12b219a
JS		 872 release_firmware(fw);
873
1da177e4
LT		 874 for (i=0; i < buffer_size; i++) {
875 cs = (__u8)(cs + buffer[i]);
876 }
877
2742fd88 878 kfree(buffer);
1da177e4 879
2742fd88 880 /* Build new header */
1da177e4
LT		 881 i2c_header = (struct ti_i2c_desc *)header;
882 firmware_rec = (struct ti_i2c_firmware_rec*)i2c_header->Data;
2742fd88 883
1da177e4
LT		 884 i2c_header->Type = I2C_DESC_TYPE_FIRMWARE_BLANK;
885 i2c_header->Size = (__u16)buffer_size;
886 i2c_header->CheckSum = cs;
d12b219a
JS		 887 firmware_rec->Ver_Major = OperationalMajorVersion;
888 firmware_rec->Ver_Minor = OperationalMinorVersion;
1da177e4
LT		 889
890 return 0;
891}
892
893/* Try to figure out what type of I2c we have */
2742fd88 894static int i2c_type_bootmode(struct edgeport_serial *serial)
1da177e4 895{
67e6da70 896 struct device *dev = &serial->serial->dev->dev;
1da177e4 897 int status;
e9305d2f
JH		 898 u8 *data;
899
900 data = kmalloc(1, GFP_KERNEL);
901 if (!data) {
67e6da70 902 dev_err(dev, "%s - out of memory\n", __func__);
e9305d2f
JH		 903 return -ENOMEM;
904 }
2742fd88
AC		 905
906 /* Try to read type 2 */
907 status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ,
e9305d2f 908 DTK_ADDR_SPACE_I2C_TYPE_II, 0, data, 0x01);
1da177e4 909 if (status)
67e6da70 910 dev_dbg(dev, "%s - read 2 status error = %d\n", __func__, status);
1da177e4 911 else
67e6da70 912 dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data);
e9305d2f 913 if ((!status) && (*data == UMP5152 || *data == UMP3410)) {
67e6da70 914 dev_dbg(dev, "%s - ROM_TYPE_II\n", __func__);
1da177e4 915 serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
e9305d2f 916 goto out;
1da177e4
LT		 917 }
918
2742fd88
AC		 919 /* Try to read type 3 */
920 status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ,
e9305d2f 921 DTK_ADDR_SPACE_I2C_TYPE_III, 0, data, 0x01);
1da177e4 922 if (status)
67e6da70 923 dev_dbg(dev, "%s - read 3 status error = %d\n", __func__, status);
1da177e4 924 else
67e6da70 925 dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data);
e9305d2f 926 if ((!status) && (*data == UMP5152 || *data == UMP3410)) {
67e6da70 927 dev_dbg(dev, "%s - ROM_TYPE_III\n", __func__);
1da177e4 928 serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III;
e9305d2f 929 goto out;
1da177e4
LT		 930 }
931
67e6da70 932 dev_dbg(dev, "%s - Unknown\n", __func__);
1da177e4 933 serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
e9305d2f
JH		 934 status = -ENODEV;
935out:
936 kfree(data);
937 return status;
1da177e4
LT		 938}
939
2742fd88
AC		 940static int bulk_xfer(struct usb_serial *serial, void *buffer,
941 int length, int *num_sent)
1da177e4
LT		 942{
943 int status;
944
2742fd88
AC		 945 status = usb_bulk_msg(serial->dev,
946 usb_sndbulkpipe(serial->dev,
947 serial->port[0]->bulk_out_endpointAddress),
948 buffer, length, num_sent, 1000);
1da177e4
LT		 949 return status;
950}
951
952/* Download given firmware image to the device (IN BOOT MODE) */
2742fd88
AC		 953static int download_code(struct edgeport_serial *serial, __u8 *image,
954 int image_length)
1da177e4
LT		 955{
956 int status = 0;
957 int pos;
958 int transfer;
959 int done;
960
2742fd88 961 /* Transfer firmware image */
1da177e4 962 for (pos = 0; pos < image_length; ) {
2742fd88 963 /* Read the next buffer from file */
1da177e4
LT		 964 transfer = image_length - pos;
965 if (transfer > EDGE_FW_BULK_MAX_PACKET_SIZE)
966 transfer = EDGE_FW_BULK_MAX_PACKET_SIZE;
967
2742fd88
AC		 968 /* Transfer data */
969 status = bulk_xfer(serial->serial, &image[pos],
970 transfer, &done);
1da177e4
LT		 971 if (status)
972 break;
2742fd88 973 /* Advance buffer pointer */
1da177e4
LT		 974 pos += done;
975 }
976
977 return status;
978}
979
2742fd88
AC		 980/* FIXME!!! */
981static int config_boot_dev(struct usb_device *dev)
1da177e4
LT		 982{
983 return 0;
984}
985
2742fd88
AC		 986static int ti_cpu_rev(struct edge_ti_manuf_descriptor *desc)
987{
988 return TI_GET_CPU_REVISION(desc->CpuRev_BoardRev);
989}
990
1da177e4
LT		 991/**
992 * DownloadTIFirmware - Download run-time operating firmware to the TI5052
2742fd88 993 *
1da177e4
LT		 994 * This routine downloads the main operating code into the TI5052, using the
995 * boot code already burned into E2PROM or ROM.
996 */
2742fd88 997static int download_fw(struct edgeport_serial *serial)
1da177e4
LT		 998{
999 struct device *dev = &serial->serial->dev->dev;
1000 int status = 0;
1001 int start_address;
1002 struct edge_ti_manuf_descriptor *ti_manuf_desc;
1003 struct usb_interface_descriptor *interface;
1004 int download_cur_ver;
1005 int download_new_ver;
1006
1007 /* This routine is entered by both the BOOT mode and the Download mode
1008 * We can determine which code is running by the reading the config
1009 * descriptor and if we have only one bulk pipe it is in boot mode
1010 */
1011 serial->product_info.hardware_type = HARDWARE_TYPE_TIUMP;
1012
1013 /* Default to type 2 i2c */
1014 serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
1015
2742fd88 1016 status = choose_config(serial->serial->dev);
1da177e4
LT		 1017 if (status)
1018 return status;
1019
1020 interface = &serial->serial->interface->cur_altsetting->desc;
1021 if (!interface) {
2742fd88 1022 dev_err(dev, "%s - no interface set, error!\n", __func__);
1da177e4
LT		 1023 return -ENODEV;
1024 }
1025
2742fd88
AC		 1026 /*
1027 * Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING
1028 * if we have more than one endpoint we are definitely in download
1029 * mode
1030 */
1da177e4
LT		 1031 if (interface->bNumEndpoints > 1)
1032 serial->product_info.TiMode = TI_MODE_DOWNLOAD;
1033 else
2742fd88 1034 /* Otherwise we will remain in configuring mode */
1da177e4
LT		 1035 serial->product_info.TiMode = TI_MODE_CONFIGURING;
1036
1da177e4
LT		 1037 /********************************************************************/
1038 /* Download Mode */
1039 /********************************************************************/
1040 if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) {
1041 struct ti_i2c_desc *rom_desc;
1042
67e6da70 1043 dev_dbg(dev, "%s - RUNNING IN DOWNLOAD MODE\n", __func__);
1da177e4 1044
2742fd88 1045 status = check_i2c_image(serial);
1da177e4 1046 if (status) {
67e6da70 1047 dev_dbg(dev, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__);
1da177e4
LT		 1048 return status;
1049 }
2742fd88 1050
1da177e4
LT		 1051 /* Validate Hardware version number
1052 * Read Manufacturing Descriptor from TI Based Edgeport
1053 */
2742fd88 1054 ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL);
1da177e4 1055 if (!ti_manuf_desc) {
2742fd88 1056 dev_err(dev, "%s - out of memory.\n", __func__);
1da177e4
LT		 1057 return -ENOMEM;
1058 }
2742fd88 1059 status = get_manuf_info(serial, (__u8 *)ti_manuf_desc);
1da177e4 1060 if (status) {
2742fd88 1061 kfree(ti_manuf_desc);
1da177e4
LT		 1062 return status;
1063 }
1064
2742fd88
AC		 1065 /* Check version number of ION descriptor */
1066 if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) {
67e6da70 1067 dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n",
2742fd88
AC		 1068 __func__, ti_cpu_rev(ti_manuf_desc));
1069 kfree(ti_manuf_desc);
1070 return -EINVAL;
1071 }
1da177e4 1072
2742fd88 1073 rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
1da177e4 1074 if (!rom_desc) {
2742fd88
AC		 1075 dev_err(dev, "%s - out of memory.\n", __func__);
1076 kfree(ti_manuf_desc);
1da177e4
LT		 1077 return -ENOMEM;
1078 }
1079
2742fd88
AC		 1080 /* Search for type 2 record (firmware record) */
1081 start_address = get_descriptor_addr(serial,
1082 I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc);
1083 if (start_address != 0) {
1da177e4 1084 struct ti_i2c_firmware_rec *firmware_version;
e9305d2f 1085 u8 *record;
1da177e4 1086
67e6da70 1087 dev_dbg(dev, "%s - Found Type FIRMWARE (Type 2) record\n", __func__);
1da177e4 1088
2742fd88
AC		 1089 firmware_version = kmalloc(sizeof(*firmware_version),
1090 GFP_KERNEL);
1da177e4 1091 if (!firmware_version) {
2742fd88
AC		 1092 dev_err(dev, "%s - out of memory.\n", __func__);
1093 kfree(rom_desc);
1094 kfree(ti_manuf_desc);
1da177e4
LT		 1095 return -ENOMEM;
1096 }
1097
2742fd88
AC		 1098 /* Validate version number
1099 * Read the descriptor data
1100 */
1101 status = read_rom(serial, start_address +
1102 sizeof(struct ti_i2c_desc),
1da177e4
LT		 1103 sizeof(struct ti_i2c_firmware_rec),
1104 (__u8 *)firmware_version);
1105 if (status) {
2742fd88
AC		 1106 kfree(firmware_version);
1107 kfree(rom_desc);
1108 kfree(ti_manuf_desc);
1da177e4
LT		 1109 return status;
1110 }
1111
2742fd88
AC		 1112 /* Check version number of download with current
1113 version in I2c */
1114 download_cur_ver = (firmware_version->Ver_Major << 8) +
1da177e4 1115 (firmware_version->Ver_Minor);
d12b219a
JS		 1116 download_new_ver = (OperationalMajorVersion << 8) +
1117 (OperationalMinorVersion);
1da177e4 1118
67e6da70
GKH		 1119 dev_dbg(dev, "%s - >> FW Versions Device %d.%d Driver %d.%d\n",
1120 __func__, firmware_version->Ver_Major,
1121 firmware_version->Ver_Minor,
1122 OperationalMajorVersion,
1123 OperationalMinorVersion);
1da177e4 1124
2742fd88
AC		 1125 /* Check if we have an old version in the I2C and
1126 update if necessary */
0827a9ff 1127 if (download_cur_ver < download_new_ver) {
67e6da70
GKH		 1128 dev_dbg(dev, "%s - Update I2C dld from %d.%d to %d.%d\n",
1129 __func__,
1130 firmware_version->Ver_Major,
1131 firmware_version->Ver_Minor,
1132 OperationalMajorVersion,
1133 OperationalMinorVersion);
2742fd88 1134
e9305d2f
JH		 1135 record = kmalloc(1, GFP_KERNEL);
1136 if (!record) {
1137 dev_err(dev, "%s - out of memory.\n",
1138 __func__);
1139 kfree(firmware_version);
1140 kfree(rom_desc);
1141 kfree(ti_manuf_desc);
1142 return -ENOMEM;
1143 }
2742fd88
AC		 1144 /* In order to update the I2C firmware we must
1145 * change the type 2 record to type 0xF2. This
1146 * will force the UMP to come up in Boot Mode.
1147 * Then while in boot mode, the driver will
1148 * download the latest firmware (padded to
1149 * 15.5k) into the UMP ram. Finally when the
1150 * device comes back up in download mode the
1151 * driver will cause the new firmware to be
1152 * copied from the UMP Ram to I2C and the
1153 * firmware will update the record type from
1154 * 0xf2 to 0x02.
1155 */
e9305d2f 1156 *record = I2C_DESC_TYPE_FIRMWARE_BLANK;
1da177e4 1157
2742fd88
AC		 1158 /* Change the I2C Firmware record type to
1159 0xf2 to trigger an update */
1160 status = write_rom(serial, start_address,
e9305d2f 1161 sizeof(*record), record);
1da177e4 1162 if (status) {
e9305d2f 1163 kfree(record);
2742fd88
AC		 1164 kfree(firmware_version);
1165 kfree(rom_desc);
1166 kfree(ti_manuf_desc);
1da177e4
LT		 1167 return status;
1168 }
1169
2742fd88
AC		 1170 /* verify the write -- must do this in order
1171 * for write to complete before we do the
1172 * hardware reset
1173 */
1174 status = read_rom(serial,
1da177e4 1175 start_address,
e9305d2f
JH		 1176 sizeof(*record),
1177 record);
1da177e4 1178 if (status) {
e9305d2f 1179 kfree(record);
2742fd88
AC		 1180 kfree(firmware_version);
1181 kfree(rom_desc);
1182 kfree(ti_manuf_desc);
1da177e4
LT		 1183 return status;
1184 }
1185
e9305d2f 1186 if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) {
67e6da70 1187 dev_err(dev, "%s - error resetting device\n", __func__);
e9305d2f 1188 kfree(record);
2742fd88
AC		 1189 kfree(firmware_version);
1190 kfree(rom_desc);
1191 kfree(ti_manuf_desc);
1da177e4
LT		 1192 return -ENODEV;
1193 }
1194
67e6da70 1195 dev_dbg(dev, "%s - HARDWARE RESET\n", __func__);
1da177e4 1196
2742fd88
AC		 1197 /* Reset UMP -- Back to BOOT MODE */
1198 status = ti_vsend_sync(serial->serial->dev,
1199 UMPC_HARDWARE_RESET,
1200 0, 0, NULL, 0);
1da177e4 1201
67e6da70 1202 dev_dbg(dev, "%s - HARDWARE RESET return %d\n", __func__, status);
1da177e4
LT		 1203
1204 /* return an error on purpose. */
e9305d2f 1205 kfree(record);
2742fd88
AC		 1206 kfree(firmware_version);
1207 kfree(rom_desc);
1208 kfree(ti_manuf_desc);
1da177e4
LT		 1209 return -ENODEV;
1210 }
2742fd88 1211 kfree(firmware_version);
1da177e4 1212 }
2742fd88
AC		 1213 /* Search for type 0xF2 record (firmware blank record) */
1214 else if ((start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc)) != 0) {
1215#define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \
1216 sizeof(struct ti_i2c_firmware_rec))
1da177e4
LT		 1217 __u8 *header;
1218 __u8 *vheader;
1219
2742fd88 1220 header = kmalloc(HEADER_SIZE, GFP_KERNEL);
1da177e4 1221 if (!header) {
2742fd88
AC		 1222 dev_err(dev, "%s - out of memory.\n", __func__);
1223 kfree(rom_desc);
1224 kfree(ti_manuf_desc);
1da177e4
LT		 1225 return -ENOMEM;
1226 }
2742fd88
AC		 1227
1228 vheader = kmalloc(HEADER_SIZE, GFP_KERNEL);
1da177e4 1229 if (!vheader) {
2742fd88
AC		 1230 dev_err(dev, "%s - out of memory.\n", __func__);
1231 kfree(header);
1232 kfree(rom_desc);
1233 kfree(ti_manuf_desc);
1da177e4
LT		 1234 return -ENOMEM;
1235 }
2742fd88 1236
67e6da70 1237 dev_dbg(dev, "%s - Found Type BLANK FIRMWARE (Type F2) record\n", __func__);
2742fd88
AC		 1238
1239 /*
1240 * In order to update the I2C firmware we must change
1241 * the type 2 record to type 0xF2. This will force the
1242 * UMP to come up in Boot Mode. Then while in boot
1243 * mode, the driver will download the latest firmware
1244 * (padded to 15.5k) into the UMP ram. Finally when the
1245 * device comes back up in download mode the driver
1246 * will cause the new firmware to be copied from the
1247 * UMP Ram to I2C and the firmware will update the
1248 * record type from 0xf2 to 0x02.
1249 */
1250 status = build_i2c_fw_hdr(header, dev);
1da177e4 1251 if (status) {
2742fd88
AC		 1252 kfree(vheader);
1253 kfree(header);
1254 kfree(rom_desc);
1255 kfree(ti_manuf_desc);
fd6e5bbb 1256 return -EINVAL;
1da177e4
LT		 1257 }
1258
2742fd88
AC		 1259 /* Update I2C with type 0xf2 record with correct
1260 size and checksum */
1261 status = write_rom(serial,
1da177e4
LT		 1262 start_address,
1263 HEADER_SIZE,
1264 header);
1265 if (status) {
2742fd88
AC		 1266 kfree(vheader);
1267 kfree(header);
1268 kfree(rom_desc);
1269 kfree(ti_manuf_desc);
9800eb33 1270 return -EINVAL;
1da177e4
LT		 1271 }
1272
2742fd88
AC		 1273 /* verify the write -- must do this in order for
1274 write to complete before we do the hardware reset */
1275 status = read_rom(serial, start_address,
1276 HEADER_SIZE, vheader);
1da177e4
LT		 1277
1278 if (status) {
67e6da70 1279 dev_dbg(dev, "%s - can't read header back\n", __func__);
2742fd88
AC		 1280 kfree(vheader);
1281 kfree(header);
1282 kfree(rom_desc);
1283 kfree(ti_manuf_desc);
1da177e4
LT		 1284 return status;
1285 }
1286 if (memcmp(vheader, header, HEADER_SIZE)) {
67e6da70 1287 dev_dbg(dev, "%s - write download record failed\n", __func__);
2742fd88
AC		 1288 kfree(vheader);
1289 kfree(header);
1290 kfree(rom_desc);
1291 kfree(ti_manuf_desc);
1e29709e 1292 return -EINVAL;
1da177e4
LT		 1293 }
1294
2742fd88
AC		 1295 kfree(vheader);
1296 kfree(header);
1da177e4 1297
67e6da70 1298 dev_dbg(dev, "%s - Start firmware update\n", __func__);
1da177e4 1299
2742fd88
AC		 1300 /* Tell firmware to copy download image into I2C */
1301 status = ti_vsend_sync(serial->serial->dev,
1302 UMPC_COPY_DNLD_TO_I2C, 0, 0, NULL, 0);
1da177e4 1303
67e6da70 1304 dev_dbg(dev, "%s - Update complete 0x%x\n", __func__, status);
1da177e4 1305 if (status) {
2742fd88
AC		 1306 dev_err(dev,
1307 "%s - UMPC_COPY_DNLD_TO_I2C failed\n",
1308 __func__);
1309 kfree(rom_desc);
1310 kfree(ti_manuf_desc);
1da177e4
LT		 1311 return status;
1312 }
1313 }
1314
1315 // The device is running the download code
2742fd88
AC		 1316 kfree(rom_desc);
1317 kfree(ti_manuf_desc);
1da177e4
LT		 1318 return 0;
1319 }
1320
1321 /********************************************************************/
1322 /* Boot Mode */
1323 /********************************************************************/
67e6da70 1324 dev_dbg(dev, "%s - RUNNING IN BOOT MODE\n", __func__);
1da177e4 1325
2742fd88
AC		 1326 /* Configure the TI device so we can use the BULK pipes for download */
1327 status = config_boot_dev(serial->serial->dev);
1da177e4
LT		 1328 if (status)
1329 return status;
1330
2742fd88
AC		 1331 if (le16_to_cpu(serial->serial->dev->descriptor.idVendor)
1332 != USB_VENDOR_ID_ION) {
67e6da70
GKH		 1333 dev_dbg(dev, "%s - VID = 0x%x\n", __func__,
1334 le16_to_cpu(serial->serial->dev->descriptor.idVendor));
1da177e4 1335 serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
2742fd88 1336 goto stayinbootmode;
1da177e4
LT		 1337 }
1338
2742fd88
AC		 1339 /* We have an ION device (I2c Must be programmed)
1340 Determine I2C image type */
1341 if (i2c_type_bootmode(serial))
1342 goto stayinbootmode;
1da177e4 1343
2742fd88
AC		 1344 /* Check for ION Vendor ID and that the I2C is valid */
1345 if (!check_i2c_image(serial)) {
1da177e4
LT		 1346 struct ti_i2c_image_header *header;
1347 int i;
1348 __u8 cs = 0;
1349 __u8 *buffer;
1350 int buffer_size;
d12b219a
JS		 1351 int err;
1352 const struct firmware *fw;
1353 const char *fw_name = "edgeport/down3.bin";
1da177e4
LT		 1354
1355 /* Validate Hardware version number
1356 * Read Manufacturing Descriptor from TI Based Edgeport
1357 */
2742fd88 1358 ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL);
1da177e4 1359 if (!ti_manuf_desc) {
2742fd88 1360 dev_err(dev, "%s - out of memory.\n", __func__);
1da177e4
LT		 1361 return -ENOMEM;
1362 }
2742fd88 1363 status = get_manuf_info(serial, (__u8 *)ti_manuf_desc);
1da177e4 1364 if (status) {
2742fd88
AC		 1365 kfree(ti_manuf_desc);
1366 goto stayinbootmode;
1da177e4
LT		 1367 }
1368
2742fd88
AC		 1369 /* Check for version 2 */
1370 if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) {
67e6da70
GKH		 1371 dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n",
1372 __func__, ti_cpu_rev(ti_manuf_desc));
2742fd88
AC		 1373 kfree(ti_manuf_desc);
1374 goto stayinbootmode;
1da177e4
LT		 1375 }
1376
2742fd88 1377 kfree(ti_manuf_desc);
1da177e4 1378
1da177e4 1379 /*
2742fd88
AC		 1380 * In order to update the I2C firmware we must change the type
1381 * 2 record to type 0xF2. This will force the UMP to come up
1382 * in Boot Mode. Then while in boot mode, the driver will
1383 * download the latest firmware (padded to 15.5k) into the
1384 * UMP ram. Finally when the device comes back up in download
1385 * mode the driver will cause the new firmware to be copied
1386 * from the UMP Ram to I2C and the firmware will update the
1387 * record type from 0xf2 to 0x02.
1388 *
1da177e4
LT		 1389 * Do we really have to copy the whole firmware image,
1390 * or could we do this in place!
1391 */
1392
2742fd88
AC		 1393 /* Allocate a 15.5k buffer + 3 byte header */
1394 buffer_size = (((1024 * 16) - 512) +
1395 sizeof(struct ti_i2c_image_header));
1396 buffer = kmalloc(buffer_size, GFP_KERNEL);
1da177e4 1397 if (!buffer) {
2742fd88 1398 dev_err(dev, "%s - out of memory\n", __func__);
1da177e4
LT		 1399 return -ENOMEM;
1400 }
2742fd88
AC		 1401
1402 /* Initialize the buffer to 0xff (pad the buffer) */
1403 memset(buffer, 0xff, buffer_size);
1da177e4 1404
d12b219a
JS		 1405 err = request_firmware(&fw, fw_name, dev);
1406 if (err) {
d9bb03dc
GKH		 1407 dev_err(dev, "Failed to load image \"%s\" err %d\n",
1408 fw_name, err);
d12b219a
JS		 1409 kfree(buffer);
1410 return err;
1411 }
1412 memcpy(buffer, &fw->data[4], fw->size - 4);
1413 release_firmware(fw);
1da177e4 1414
2742fd88
AC		 1415 for (i = sizeof(struct ti_i2c_image_header);
1416 i < buffer_size; i++) {
1da177e4
LT		 1417 cs = (__u8)(cs + buffer[i]);
1418 }
2742fd88 1419
1da177e4 1420 header = (struct ti_i2c_image_header *)buffer;
2742fd88
AC		 1421
1422 /* update length and checksum after padding */
1423 header->Length = cpu_to_le16((__u16)(buffer_size -
1424 sizeof(struct ti_i2c_image_header)));
1da177e4
LT		 1425 header->CheckSum = cs;
1426
2742fd88 1427 /* Download the operational code */
67e6da70 1428 dev_dbg(dev, "%s - Downloading operational code image (TI UMP)\n", __func__);
2742fd88 1429 status = download_code(serial, buffer, buffer_size);
1da177e4 1430
2742fd88 1431 kfree(buffer);
1da177e4
LT		 1432
1433 if (status) {
67e6da70 1434 dev_dbg(dev, "%s - Error downloading operational code image\n", __func__);
1da177e4
LT		 1435 return status;
1436 }
1437
2742fd88 1438 /* Device will reboot */
1da177e4
LT		 1439 serial->product_info.TiMode = TI_MODE_TRANSITIONING;
1440
67e6da70 1441 dev_dbg(dev, "%s - Download successful -- Device rebooting...\n", __func__);
1da177e4
LT		 1442
1443 /* return an error on purpose */
1444 return -ENODEV;
1445 }
1446
2742fd88
AC		 1447stayinbootmode:
1448 /* Eprom is invalid or blank stay in boot mode */
67e6da70 1449 dev_dbg(dev, "%s - STAYING IN BOOT MODE\n", __func__);
1da177e4
LT		 1450 serial->product_info.TiMode = TI_MODE_BOOT;
1451
1452 return 0;
1453}
1454
1455
2742fd88 1456static int ti_do_config(struct edgeport_port *port, int feature, int on)
1da177e4
LT		 1457{
1458 int port_number = port->port->number - port->port->serial->minor;
2742fd88
AC		 1459 on = !!on; /* 1 or 0 not bitmask */
1460 return send_cmd(port->port->serial->dev,
1461 feature, (__u8)(UMPM_UART1_PORT + port_number),
1462 on, NULL, 0);
1da177e4
LT		 1463}
1464
1da177e4 1465
2742fd88 1466static int restore_mcr(struct edgeport_port *port, __u8 mcr)
1da177e4
LT		 1467{
1468 int status = 0;
1469
67e6da70 1470 dev_dbg(&port->port->dev, "%s - %x\n", __func__, mcr);
1da177e4 1471
2742fd88 1472 status = ti_do_config(port, UMPC_SET_CLR_DTR, mcr & MCR_DTR);
1da177e4
LT		 1473 if (status)
1474 return status;
2742fd88 1475 status = ti_do_config(port, UMPC_SET_CLR_RTS, mcr & MCR_RTS);
1da177e4
LT		 1476 if (status)
1477 return status;
2742fd88 1478 return ti_do_config(port, UMPC_SET_CLR_LOOPBACK, mcr & MCR_LOOPBACK);
1da177e4
LT		 1479}
1480
1da177e4 1481/* Convert TI LSR to standard UART flags */
2742fd88 1482static __u8 map_line_status(__u8 ti_lsr)
1da177e4
LT		 1483{
1484 __u8 lsr = 0;
1485
1486#define MAP_FLAG(flagUmp, flagUart) \
1487 if (ti_lsr & flagUmp) \
1488 lsr |= flagUart;
1489
1490 MAP_FLAG(UMP_UART_LSR_OV_MASK, LSR_OVER_ERR) /* overrun */
1491 MAP_FLAG(UMP_UART_LSR_PE_MASK, LSR_PAR_ERR) /* parity error */
1492 MAP_FLAG(UMP_UART_LSR_FE_MASK, LSR_FRM_ERR) /* framing error */
1493 MAP_FLAG(UMP_UART_LSR_BR_MASK, LSR_BREAK) /* break detected */
2742fd88
AC		 1494 MAP_FLAG(UMP_UART_LSR_RX_MASK, LSR_RX_AVAIL) /* rx data available */
1495 MAP_FLAG(UMP_UART_LSR_TX_MASK, LSR_TX_EMPTY) /* tx hold reg empty */
1da177e4
LT		 1496
1497#undef MAP_FLAG
1498
1499 return lsr;
1500}
1501
2742fd88 1502static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr)
1da177e4
LT		 1503{
1504 struct async_icount *icount;
1505 struct tty_struct *tty;
1506
67e6da70 1507 dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, msr);
1da177e4 1508
2742fd88
AC		 1509 if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR |
1510 EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) {
1da177e4
LT		 1511 icount = &edge_port->icount;
1512
1513 /* update input line counters */
1514 if (msr & EDGEPORT_MSR_DELTA_CTS)
1515 icount->cts++;
1516 if (msr & EDGEPORT_MSR_DELTA_DSR)
1517 icount->dsr++;
1518 if (msr & EDGEPORT_MSR_DELTA_CD)
1519 icount->dcd++;
1520 if (msr & EDGEPORT_MSR_DELTA_RI)
1521 icount->rng++;
2742fd88 1522 wake_up_interruptible(&edge_port->delta_msr_wait);
1da177e4
LT		 1523 }
1524
1525 /* Save the new modem status */
1526 edge_port->shadow_msr = msr & 0xf0;
1527
4a90f09b 1528 tty = tty_port_tty_get(&edge_port->port->port);
1da177e4
LT		 1529 /* handle CTS flow control */
1530 if (tty && C_CRTSCTS(tty)) {
1531 if (msr & EDGEPORT_MSR_CTS) {
1532 tty->hw_stopped = 0;
1533 tty_wakeup(tty);
1534 } else {
1535 tty->hw_stopped = 1;
1536 }
1537 }
4a90f09b 1538 tty_kref_put(tty);
1da177e4
LT		 1539}
1540
2742fd88
AC		 1541static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data,
1542 __u8 lsr, __u8 data)
1da177e4
LT		 1543{
1544 struct async_icount *icount;
2742fd88
AC		 1545 __u8 new_lsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR |
1546 LSR_FRM_ERR | LSR_BREAK));
4a90f09b 1547 struct tty_struct *tty;
1da177e4 1548
67e6da70 1549 dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr);
1da177e4
LT		 1550
1551 edge_port->shadow_lsr = lsr;
1552
2742fd88 1553 if (new_lsr & LSR_BREAK)
1da177e4
LT		 1554 /*
1555 * Parity and Framing errors only count if they
1556 * occur exclusive of a break being received.
1557 */
1558 new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK);
1da177e4
LT		 1559
1560 /* Place LSR data byte into Rx buffer */
4a90f09b
AC		 1561 if (lsr_data) {
1562 tty = tty_port_tty_get(&edge_port->port->port);
1563 if (tty) {
1564 edge_tty_recv(&edge_port->port->dev, tty, &data, 1);
1565 tty_kref_put(tty);
1566 }
1567 }
1da177e4
LT		 1568
1569 /* update input line counters */
1570 icount = &edge_port->icount;
1571 if (new_lsr & LSR_BREAK)
1572 icount->brk++;
1573 if (new_lsr & LSR_OVER_ERR)
1574 icount->overrun++;
1575 if (new_lsr & LSR_PAR_ERR)
1576 icount->parity++;
1577 if (new_lsr & LSR_FRM_ERR)
1578 icount->frame++;
1579}
1580
1581
2742fd88 1582static void edge_interrupt_callback(struct urb *urb)
1da177e4 1583{
cdc97792 1584 struct edgeport_serial *edge_serial = urb->context;
1da177e4
LT		 1585 struct usb_serial_port *port;
1586 struct edgeport_port *edge_port;
67e6da70 1587 struct device *dev;
1da177e4
LT		 1588 unsigned char *data = urb->transfer_buffer;
1589 int length = urb->actual_length;
1590 int port_number;
1591 int function;
ee337c21 1592 int retval;
1da177e4
LT		 1593 __u8 lsr;
1594 __u8 msr;
ee337c21 1595 int status = urb->status;
1da177e4 1596
ee337c21 1597 switch (status) {
1da177e4
LT		 1598 case 0:
1599 /* success */
1600 break;
1601 case -ECONNRESET:
1602 case -ENOENT:
1603 case -ESHUTDOWN:
1604 /* this urb is terminated, clean up */
67e6da70 1605 dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n",
441b62c1 1606 __func__, status);
1da177e4
LT		 1607 return;
1608 default:
ee337c21 1609 dev_err(&urb->dev->dev, "%s - nonzero urb status received: "
441b62c1 1610 "%d\n", __func__, status);
1da177e4
LT		 1611 goto exit;
1612 }
1613
1614 if (!length) {
67e6da70 1615 dev_dbg(&urb->dev->dev, "%s - no data in urb\n", __func__);
1da177e4
LT		 1616 goto exit;
1617 }
2742fd88 1618
67e6da70 1619 dev = &edge_serial->serial->dev->dev;
59d33f2f 1620 usb_serial_debug_data(dev, __func__, length, data);
2742fd88 1621
1da177e4 1622 if (length != 2) {
67e6da70 1623 dev_dbg(dev, "%s - expecting packet of size 2, got %d\n", __func__, length);
1da177e4
LT		 1624 goto exit;
1625 }
1626
2742fd88
AC		 1627 port_number = TIUMP_GET_PORT_FROM_CODE(data[0]);
1628 function = TIUMP_GET_FUNC_FROM_CODE(data[0]);
67e6da70
GKH		 1629 dev_dbg(dev, "%s - port_number %d, function %d, info 0x%x\n", __func__,
1630 port_number, function, data[1]);
1da177e4
LT		 1631 port = edge_serial->serial->port[port_number];
1632 edge_port = usb_get_serial_port_data(port);
1633 if (!edge_port) {
67e6da70 1634 dev_dbg(dev, "%s - edge_port not found\n", __func__);
1da177e4
LT		 1635 return;
1636 }
1637 switch (function) {
1638 case TIUMP_INTERRUPT_CODE_LSR:
2742fd88 1639 lsr = map_line_status(data[1]);
1da177e4 1640 if (lsr & UMP_UART_LSR_DATA_MASK) {
2742fd88
AC		 1641 /* Save the LSR event for bulk read
1642 completion routine */
67e6da70
GKH		 1643 dev_dbg(dev, "%s - LSR Event Port %u LSR Status = %02x\n",
1644 __func__, port_number, lsr);
1da177e4
LT		 1645 edge_port->lsr_event = 1;
1646 edge_port->lsr_mask = lsr;
1647 } else {
67e6da70
GKH		 1648 dev_dbg(dev, "%s - ===== Port %d LSR Status = %02x ======\n",
1649 __func__, port_number, lsr);
2742fd88 1650 handle_new_lsr(edge_port, 0, lsr, 0);
1da177e4
LT		 1651 }
1652 break;
1653
2742fd88 1654 case TIUMP_INTERRUPT_CODE_MSR: /* MSR */
1da177e4
LT		 1655 /* Copy MSR from UMP */
1656 msr = data[1];
67e6da70
GKH		 1657 dev_dbg(dev, "%s - ===== Port %u MSR Status = %02x ======\n",
1658 __func__, port_number, msr);
2742fd88 1659 handle_new_msr(edge_port, msr);
1da177e4
LT		 1660 break;
1661
1662 default:
2742fd88
AC		 1663 dev_err(&urb->dev->dev,
1664 "%s - Unknown Interrupt code from UMP %x\n",
1665 __func__, data[1]);
1da177e4 1666 break;
2742fd88 1667
1da177e4
LT		 1668 }
1669
1670exit:
2742fd88 1671 retval = usb_submit_urb(urb, GFP_ATOMIC);
ee337c21 1672 if (retval)
2742fd88
AC		 1673 dev_err(&urb->dev->dev,
1674 "%s - usb_submit_urb failed with result %d\n",
441b62c1 1675 __func__, retval);
1da177e4
LT		 1676}
1677
2742fd88 1678static void edge_bulk_in_callback(struct urb *urb)
1da177e4 1679{
cdc97792 1680 struct edgeport_port *edge_port = urb->context;
67e6da70 1681 struct device *dev = &edge_port->port->dev;
1da177e4
LT		 1682 unsigned char *data = urb->transfer_buffer;
1683 struct tty_struct *tty;
ee337c21 1684 int retval = 0;
1da177e4 1685 int port_number;
ee337c21 1686 int status = urb->status;
1da177e4 1687
ee337c21 1688 switch (status) {
1da177e4
LT		 1689 case 0:
1690 /* success */
1691 break;
1692 case -ECONNRESET:
1693 case -ENOENT:
1694 case -ESHUTDOWN:
1695 /* this urb is terminated, clean up */
67e6da70 1696 dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", __func__, status);
1da177e4
LT		 1697 return;
1698 default:
67e6da70 1699 dev_err(&urb->dev->dev, "%s - nonzero read bulk status received: %d\n", __func__, status);
1da177e4
LT		 1700 }
1701
ee337c21 1702 if (status == -EPIPE)
1da177e4
LT		 1703 goto exit;
1704
ee337c21 1705 if (status) {
2742fd88 1706 dev_err(&urb->dev->dev, "%s - stopping read!\n", __func__);
1da177e4
LT		 1707 return;
1708 }
1709
1710 port_number = edge_port->port->number - edge_port->port->serial->minor;
1711
1712 if (edge_port->lsr_event) {
1713 edge_port->lsr_event = 0;
67e6da70
GKH		 1714 dev_dbg(dev, "%s ===== Port %u LSR Status = %02x, Data = %02x ======\n",
1715 __func__, port_number, edge_port->lsr_mask, *data);
2742fd88 1716 handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data);
1da177e4
LT		 1717 /* Adjust buffer length/pointer */
1718 --urb->actual_length;
1719 ++data;
1720 }
1721
4a90f09b 1722 tty = tty_port_tty_get(&edge_port->port->port);
1da177e4 1723 if (tty && urb->actual_length) {
59d33f2f 1724 usb_serial_debug_data(dev, __func__, urb->actual_length, data);
2742fd88 1725 if (edge_port->close_pending)
67e6da70 1726 dev_dbg(dev, "%s - close pending, dropping data on the floor\n",
2742fd88
AC		 1727 __func__);
1728 else
67e6da70 1729 edge_tty_recv(dev, tty, data, urb->actual_length);
1da177e4
LT		 1730 edge_port->icount.rx += urb->actual_length;
1731 }
4a90f09b 1732 tty_kref_put(tty);
1da177e4
LT		 1733
1734exit:
1735 /* continue read unless stopped */
1736 spin_lock(&edge_port->ep_lock);
5833041f 1737 if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING)
ee337c21 1738 retval = usb_submit_urb(urb, GFP_ATOMIC);
5833041f 1739 else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING)
1da177e4 1740 edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED;
5833041f 1741
1da177e4 1742 spin_unlock(&edge_port->ep_lock);
ee337c21 1743 if (retval)
67e6da70 1744 dev_err(dev, "%s - usb_submit_urb failed with result %d\n", __func__, retval);
1da177e4
LT		 1745}
1746
2742fd88
AC		 1747static void edge_tty_recv(struct device *dev, struct tty_struct *tty,
1748 unsigned char *data, int length)
1da177e4 1749{
2742fd88 1750 int queued;
1da177e4 1751
2742fd88
AC		 1752 queued = tty_insert_flip_string(tty, data, length);
1753 if (queued < length)
1754 dev_err(dev, "%s - dropping data, %d bytes lost\n",
1755 __func__, length - queued);
1da177e4
LT		 1756 tty_flip_buffer_push(tty);
1757}
1758
2742fd88 1759static void edge_bulk_out_callback(struct urb *urb)
1da177e4 1760{
cdc97792 1761 struct usb_serial_port *port = urb->context;
1da177e4 1762 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
ee337c21 1763 int status = urb->status;
4a90f09b 1764 struct tty_struct *tty;
1da177e4 1765
1da177e4
LT		 1766 edge_port->ep_write_urb_in_use = 0;
1767
ee337c21 1768 switch (status) {
1da177e4
LT		 1769 case 0:
1770 /* success */
1771 break;
1772 case -ECONNRESET:
1773 case -ENOENT:
1774 case -ESHUTDOWN:
1775 /* this urb is terminated, clean up */
67e6da70 1776 dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n",
441b62c1 1777 __func__, status);
1da177e4
LT		 1778 return;
1779 default:
22a416c4 1780 dev_err_console(port, "%s - nonzero write bulk status "
441b62c1 1781 "received: %d\n", __func__, status);
1da177e4
LT		 1782 }
1783
1784 /* send any buffered data */
4a90f09b
AC		 1785 tty = tty_port_tty_get(&port->port);
1786 edge_send(tty);
1787 tty_kref_put(tty);
1da177e4
LT		 1788}
1789
a509a7e4 1790static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
1da177e4
LT		 1791{
1792 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1793 struct edgeport_serial *edge_serial;
1794 struct usb_device *dev;
1795 struct urb *urb;
1796 int port_number;
1797 int status;
1798 u16 open_settings;
1799 u8 transaction_timeout;
1800
1da177e4
LT		 1801 if (edge_port == NULL)
1802 return -ENODEV;
1803
1da177e4
LT		 1804 port_number = port->number - port->serial->minor;
1805 switch (port_number) {
2742fd88
AC		 1806 case 0:
1807 edge_port->uart_base = UMPMEM_BASE_UART1;
1808 edge_port->dma_address = UMPD_OEDB1_ADDRESS;
1809 break;
1810 case 1:
1811 edge_port->uart_base = UMPMEM_BASE_UART2;
1812 edge_port->dma_address = UMPD_OEDB2_ADDRESS;
1813 break;
1814 default:
1815 dev_err(&port->dev, "Unknown port number!!!\n");
1816 return -ENODEV;
1da177e4
LT		 1817 }
1818
67e6da70
GKH		 1819 dev_dbg(&port->dev, "%s - port_number = %d, uart_base = %04x, dma_address = %04x\n",
1820 __func__, port_number, edge_port->uart_base, edge_port->dma_address);
1da177e4
LT		 1821
1822 dev = port->serial->dev;
1823
2742fd88
AC		 1824 memset(&(edge_port->icount), 0x00, sizeof(edge_port->icount));
1825 init_waitqueue_head(&edge_port->delta_msr_wait);
1da177e4
LT		 1826
1827 /* turn off loopback */
2742fd88 1828 status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0);
1da177e4 1829 if (status) {
2742fd88
AC		 1830 dev_err(&port->dev,
1831 "%s - cannot send clear loopback command, %d\n",
441b62c1 1832 __func__, status);
1da177e4
LT		 1833 return status;
1834 }
2742fd88 1835
1da177e4 1836 /* set up the port settings */
95da310e 1837 if (tty)
adc8d746 1838 edge_set_termios(tty, port, &tty->termios);
1da177e4
LT		 1839
1840 /* open up the port */
1841
1842 /* milliseconds to timeout for DMA transfer */
1843 transaction_timeout = 2;
1844
2742fd88
AC		 1845 edge_port->ump_read_timeout =
1846 max(20, ((transaction_timeout * 3) / 2));
1da177e4 1847
2742fd88
AC		 1848 /* milliseconds to timeout for DMA transfer */
1849 open_settings = (u8)(UMP_DMA_MODE_CONTINOUS |
1850 UMP_PIPE_TRANS_TIMEOUT_ENA |
1da177e4
LT		 1851 (transaction_timeout << 2));
1852
67e6da70 1853 dev_dbg(&port->dev, "%s - Sending UMPC_OPEN_PORT\n", __func__);
1da177e4
LT		 1854
1855 /* Tell TI to open and start the port */
2742fd88
AC		 1856 status = send_cmd(dev, UMPC_OPEN_PORT,
1857 (u8)(UMPM_UART1_PORT + port_number), open_settings, NULL, 0);
1da177e4 1858 if (status) {
2742fd88
AC		 1859 dev_err(&port->dev, "%s - cannot send open command, %d\n",
1860 __func__, status);
1da177e4
LT		 1861 return status;
1862 }
1863
1864 /* Start the DMA? */
2742fd88
AC		 1865 status = send_cmd(dev, UMPC_START_PORT,
1866 (u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0);
1da177e4 1867 if (status) {
2742fd88
AC		 1868 dev_err(&port->dev, "%s - cannot send start DMA command, %d\n",
1869 __func__, status);
1da177e4
LT		 1870 return status;
1871 }
1872
1873 /* Clear TX and RX buffers in UMP */
2742fd88 1874 status = purge_port(port, UMP_PORT_DIR_OUT | UMP_PORT_DIR_IN);
1da177e4 1875 if (status) {
2742fd88
AC		 1876 dev_err(&port->dev,
1877 "%s - cannot send clear buffers command, %d\n",
1878 __func__, status);
1da177e4
LT		 1879 return status;
1880 }
1881
1882 /* Read Initial MSR */
2742fd88
AC		 1883 status = ti_vread_sync(dev, UMPC_READ_MSR, 0,
1884 (__u16)(UMPM_UART1_PORT + port_number),
1885 &edge_port->shadow_msr, 1);
1da177e4 1886 if (status) {
2742fd88
AC		 1887 dev_err(&port->dev, "%s - cannot send read MSR command, %d\n",
1888 __func__, status);
1da177e4
LT		 1889 return status;
1890 }
1891
67e6da70 1892 dev_dbg(&port->dev, "ShadowMSR 0x%X\n", edge_port->shadow_msr);
2742fd88 1893
1da177e4
LT		 1894 /* Set Initial MCR */
1895 edge_port->shadow_mcr = MCR_RTS | MCR_DTR;
67e6da70 1896 dev_dbg(&port->dev, "ShadowMCR 0x%X\n", edge_port->shadow_mcr);
1da177e4
LT		 1897
1898 edge_serial = edge_port->edge_serial;
241ca64f 1899 if (mutex_lock_interruptible(&edge_serial->es_lock))
1da177e4
LT		 1900 return -ERESTARTSYS;
1901 if (edge_serial->num_ports_open == 0) {
2742fd88 1902 /* we are the first port to open, post the interrupt urb */
1da177e4
LT		 1903 urb = edge_serial->serial->port[0]->interrupt_in_urb;
1904 if (!urb) {
2742fd88
AC		 1905 dev_err(&port->dev,
1906 "%s - no interrupt urb present, exiting\n",
1907 __func__);
1da177e4 1908 status = -EINVAL;
241ca64f 1909 goto release_es_lock;
1da177e4 1910 }
1da177e4 1911 urb->context = edge_serial;
2742fd88 1912 status = usb_submit_urb(urb, GFP_KERNEL);
1da177e4 1913 if (status) {
2742fd88
AC		 1914 dev_err(&port->dev,
1915 "%s - usb_submit_urb failed with value %d\n",
1916 __func__, status);
241ca64f 1917 goto release_es_lock;
1da177e4
LT		 1918 }
1919 }
1920
1921 /*
1922 * reset the data toggle on the bulk endpoints to work around bug in
1923 * host controllers where things get out of sync some times
1924 */
2742fd88
AC		 1925 usb_clear_halt(dev, port->write_urb->pipe);
1926 usb_clear_halt(dev, port->read_urb->pipe);
1da177e4
LT		 1927
1928 /* start up our bulk read urb */
1929 urb = port->read_urb;
1930 if (!urb) {
2742fd88
AC		 1931 dev_err(&port->dev, "%s - no read urb present, exiting\n",
1932 __func__);
1da177e4
LT		 1933 status = -EINVAL;
1934 goto unlink_int_urb;
1935 }
1936 edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;
1da177e4 1937 urb->context = edge_port;
2742fd88 1938 status = usb_submit_urb(urb, GFP_KERNEL);
1da177e4 1939 if (status) {
2742fd88
AC		 1940 dev_err(&port->dev,
1941 "%s - read bulk usb_submit_urb failed with value %d\n",
1942 __func__, status);
1da177e4
LT		 1943 goto unlink_int_urb;
1944 }
1945
1946 ++edge_serial->num_ports_open;
1947
241ca64f 1948 goto release_es_lock;
1da177e4
LT		 1949
1950unlink_int_urb:
1951 if (edge_port->edge_serial->num_ports_open == 0)
1952 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
241ca64f
MK		 1953release_es_lock:
1954 mutex_unlock(&edge_serial->es_lock);
1da177e4
LT		 1955 return status;
1956}
1957
335f8514 1958static void edge_close(struct usb_serial_port *port)
1da177e4
LT		 1959{
1960 struct edgeport_serial *edge_serial;
1961 struct edgeport_port *edge_port;
af581059 1962 struct usb_serial *serial = port->serial;
1da177e4 1963 int port_number;
1da177e4 1964
1da177e4
LT		 1965 edge_serial = usb_get_serial_data(port->serial);
1966 edge_port = usb_get_serial_port_data(port);
2742fd88 1967 if (edge_serial == NULL || edge_port == NULL)
1da177e4 1968 return;
2742fd88
AC		 1969
1970 /* The bulkreadcompletion routine will check
1da177e4
LT		 1971 * this flag and dump add read data */
1972 edge_port->close_pending = 1;
1973
1974 /* chase the port close and flush */
2742fd88 1975 chase_port(edge_port, (HZ * closing_wait) / 100, 1);
1da177e4
LT		 1976
1977 usb_kill_urb(port->read_urb);
1978 usb_kill_urb(port->write_urb);
1979 edge_port->ep_write_urb_in_use = 0;
1980
1981 /* assuming we can still talk to the device,
1982 * send a close port command to it */
67e6da70 1983 dev_dbg(&port->dev, "%s - send umpc_close_port\n", __func__);
1da177e4 1984 port_number = port->number - port->serial->minor;
af581059
JH		 1985
1986 mutex_lock(&serial->disc_mutex);
1987 if (!serial->disconnected) {
1988 send_cmd(serial->dev,
1da177e4
LT		 1989 UMPC_CLOSE_PORT,
1990 (__u8)(UMPM_UART1_PORT + port_number),
1991 0,
1992 NULL,
1993 0);
af581059
JH		 1994 }
1995 mutex_unlock(&serial->disc_mutex);
1996
241ca64f 1997 mutex_lock(&edge_serial->es_lock);
1da177e4
LT		 1998 --edge_port->edge_serial->num_ports_open;
1999 if (edge_port->edge_serial->num_ports_open <= 0) {
2000 /* last port is now closed, let's shut down our interrupt urb */
2001 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
2002 edge_port->edge_serial->num_ports_open = 0;
2003 }
241ca64f 2004 mutex_unlock(&edge_serial->es_lock);
1da177e4 2005 edge_port->close_pending = 0;
1da177e4
LT		 2006}
2007
95da310e
AC		 2008static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
2009 const unsigned char *data, int count)
1da177e4
LT		 2010{
2011 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1da177e4 2012
1da177e4 2013 if (count == 0) {
67e6da70 2014 dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__);
1da177e4
LT		 2015 return 0;
2016 }
2017
2018 if (edge_port == NULL)
2019 return -ENODEV;
2020 if (edge_port->close_pending == 1)
2021 return -ENODEV;
2022
d733cec1
JH		 2023 count = kfifo_in_locked(&edge_port->write_fifo, data, count,
2024 &edge_port->ep_lock);
95da310e 2025 edge_send(tty);
1da177e4
LT		 2026
2027 return count;
2028}
2029
95da310e 2030static void edge_send(struct tty_struct *tty)
1da177e4 2031{
95da310e 2032 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2033 int count, result;
2034 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1da177e4
LT		 2035 unsigned long flags;
2036
1da177e4
LT		 2037 spin_lock_irqsave(&edge_port->ep_lock, flags);
2038
2039 if (edge_port->ep_write_urb_in_use) {
2040 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2041 return;
2042 }
2043
d733cec1 2044 count = kfifo_out(&edge_port->write_fifo,
1da177e4
LT		 2045 port->write_urb->transfer_buffer,
2046 port->bulk_out_size);
2047
2048 if (count == 0) {
2049 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2050 return;
2051 }
2052
2053 edge_port->ep_write_urb_in_use = 1;
2054
2055 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2056
59d33f2f 2057 usb_serial_debug_data(&port->dev, __func__, count, port->write_urb->transfer_buffer);
1da177e4
LT		 2058
2059 /* set up our urb */
fd11961a 2060 port->write_urb->transfer_buffer_length = count;
1da177e4
LT		 2061
2062 /* send the data out the bulk port */
2063 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
2064 if (result) {
22a416c4 2065 dev_err_console(port,
2742fd88
AC		 2066 "%s - failed submitting write urb, error %d\n",
2067 __func__, result);
1da177e4 2068 edge_port->ep_write_urb_in_use = 0;
2742fd88
AC		 2069 /* TODO: reschedule edge_send */
2070 } else
1da177e4 2071 edge_port->icount.tx += count;
1da177e4
LT		 2072
2073 /* wakeup any process waiting for writes to complete */
2074 /* there is now more room in the buffer for new writes */
2742fd88 2075 if (tty)
1da177e4 2076 tty_wakeup(tty);
1da177e4
LT		 2077}
2078
95da310e 2079static int edge_write_room(struct tty_struct *tty)
1da177e4 2080{
95da310e 2081 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2082 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2083 int room = 0;
2084 unsigned long flags;
2085
1da177e4 2086 if (edge_port == NULL)
2742fd88 2087 return 0;
1da177e4 2088 if (edge_port->close_pending == 1)
2742fd88 2089 return 0;
1da177e4
LT		 2090
2091 spin_lock_irqsave(&edge_port->ep_lock, flags);
d733cec1 2092 room = kfifo_avail(&edge_port->write_fifo);
1da177e4
LT		 2093 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2094
67e6da70 2095 dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
1da177e4
LT		 2096 return room;
2097}
2098
95da310e 2099static int edge_chars_in_buffer(struct tty_struct *tty)
1da177e4 2100{
95da310e 2101 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2102 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2103 int chars = 0;
2104 unsigned long flags;
2105
1da177e4 2106 if (edge_port == NULL)
2742fd88 2107 return 0;
1da177e4 2108 if (edge_port->close_pending == 1)
2742fd88 2109 return 0;
1da177e4
LT		 2110
2111 spin_lock_irqsave(&edge_port->ep_lock, flags);
d733cec1 2112 chars = kfifo_len(&edge_port->write_fifo);
1da177e4
LT		 2113 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2114
67e6da70 2115 dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
1da177e4
LT		 2116 return chars;
2117}
2118
95da310e 2119static void edge_throttle(struct tty_struct *tty)
1da177e4 2120{
95da310e 2121 struct usb_serial_port *port = tty->driver_data;
1da177e4 2122 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1da177e4
LT		 2123 int status;
2124
1da177e4
LT		 2125 if (edge_port == NULL)
2126 return;
2127
1da177e4
LT		 2128 /* if we are implementing XON/XOFF, send the stop character */
2129 if (I_IXOFF(tty)) {
2130 unsigned char stop_char = STOP_CHAR(tty);
95da310e
AC		 2131 status = edge_write(tty, port, &stop_char, 1);
2132 if (status <= 0) {
2133 dev_err(&port->dev, "%s - failed to write stop character, %d\n", __func__, status);
2134 }
1da177e4
LT		 2135 }
2136
2137 /* if we are implementing RTS/CTS, stop reads */
2138 /* and the Edgeport will clear the RTS line */
2139 if (C_CRTSCTS(tty))
2140 stop_read(edge_port);
2141
2142}
2143
95da310e 2144static void edge_unthrottle(struct tty_struct *tty)
1da177e4 2145{
95da310e 2146 struct usb_serial_port *port = tty->driver_data;
1da177e4 2147 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1da177e4
LT		 2148 int status;
2149
1da177e4
LT		 2150 if (edge_port == NULL)
2151 return;
2152
1da177e4
LT		 2153 /* if we are implementing XON/XOFF, send the start character */
2154 if (I_IXOFF(tty)) {
2155 unsigned char start_char = START_CHAR(tty);
95da310e
AC		 2156 status = edge_write(tty, port, &start_char, 1);
2157 if (status <= 0) {
2158 dev_err(&port->dev, "%s - failed to write start character, %d\n", __func__, status);
2159 }
1da177e4 2160 }
1da177e4
LT		 2161 /* if we are implementing RTS/CTS, restart reads */
2162 /* are the Edgeport will assert the RTS line */
2163 if (C_CRTSCTS(tty)) {
2164 status = restart_read(edge_port);
2165 if (status)
2742fd88
AC		 2166 dev_err(&port->dev,
2167 "%s - read bulk usb_submit_urb failed: %d\n",
2168 __func__, status);
1da177e4
LT		 2169 }
2170
2171}
2172
2173static void stop_read(struct edgeport_port *edge_port)
2174{
2175 unsigned long flags;
2176
2177 spin_lock_irqsave(&edge_port->ep_lock, flags);
2178
2179 if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING)
2180 edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING;
2181 edge_port->shadow_mcr &= ~MCR_RTS;
2182
2183 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2184}
2185
2186static int restart_read(struct edgeport_port *edge_port)
2187{
2188 struct urb *urb;
2189 int status = 0;
2190 unsigned long flags;
2191
2192 spin_lock_irqsave(&edge_port->ep_lock, flags);
2193
2194 if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) {
2195 urb = edge_port->port->read_urb;
efdff608 2196 status = usb_submit_urb(urb, GFP_ATOMIC);
1da177e4
LT		 2197 }
2198 edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;
2199 edge_port->shadow_mcr |= MCR_RTS;
2200
2201 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2202
2203 return status;
2204}
2205
95da310e
AC		 2206static void change_port_settings(struct tty_struct *tty,
2207 struct edgeport_port *edge_port, struct ktermios *old_termios)
1da177e4 2208{
67e6da70 2209 struct device *dev = &edge_port->port->dev;
1da177e4 2210 struct ump_uart_config *config;
1da177e4
LT		 2211 int baud;
2212 unsigned cflag;
2213 int status;
2742fd88
AC		 2214 int port_number = edge_port->port->number -
2215 edge_port->port->serial->minor;
1da177e4 2216
67e6da70 2217 dev_dbg(dev, "%s - port %d\n", __func__, edge_port->port->number);
1da177e4 2218
95da310e 2219 config = kmalloc (sizeof (*config), GFP_KERNEL);
1da177e4 2220 if (!config) {
adc8d746 2221 tty->termios = *old_termios;
67e6da70 2222 dev_err(dev, "%s - out of memory\n", __func__);
1da177e4
LT		 2223 return;
2224 }
2225
adc8d746 2226 cflag = tty->termios.c_cflag;
1da177e4
LT		 2227
2228 config->wFlags = 0;
2229
2230 /* These flags must be set */
2231 config->wFlags |= UMP_MASK_UART_FLAGS_RECEIVE_MS_INT;
2232 config->wFlags |= UMP_MASK_UART_FLAGS_AUTO_START_ON_ERR;
2233 config->bUartMode = (__u8)(edge_port->bUartMode);
2234
2235 switch (cflag & CSIZE) {
2742fd88
AC		 2236 case CS5:
2237 config->bDataBits = UMP_UART_CHAR5BITS;
67e6da70 2238 dev_dbg(dev, "%s - data bits = 5\n", __func__);
2742fd88
AC		 2239 break;
2240 case CS6:
2241 config->bDataBits = UMP_UART_CHAR6BITS;
67e6da70 2242 dev_dbg(dev, "%s - data bits = 6\n", __func__);
2742fd88
AC		 2243 break;
2244 case CS7:
2245 config->bDataBits = UMP_UART_CHAR7BITS;
67e6da70 2246 dev_dbg(dev, "%s - data bits = 7\n", __func__);
2742fd88
AC		 2247 break;
2248 default:
2249 case CS8:
2250 config->bDataBits = UMP_UART_CHAR8BITS;
67e6da70 2251 dev_dbg(dev, "%s - data bits = 8\n", __func__);
1da177e4
LT		 2252 break;
2253 }
2254
2255 if (cflag & PARENB) {
2256 if (cflag & PARODD) {
2257 config->wFlags |= UMP_MASK_UART_FLAGS_PARITY;
2258 config->bParity = UMP_UART_ODDPARITY;
67e6da70 2259 dev_dbg(dev, "%s - parity = odd\n", __func__);
1da177e4
LT		 2260 } else {
2261 config->wFlags |= UMP_MASK_UART_FLAGS_PARITY;
2262 config->bParity = UMP_UART_EVENPARITY;
67e6da70 2263 dev_dbg(dev, "%s - parity = even\n", __func__);
1da177e4
LT		 2264 }
2265 } else {
2742fd88 2266 config->bParity = UMP_UART_NOPARITY;
67e6da70 2267 dev_dbg(dev, "%s - parity = none\n", __func__);
1da177e4
LT		 2268 }
2269
2270 if (cflag & CSTOPB) {
2271 config->bStopBits = UMP_UART_STOPBIT2;
67e6da70 2272 dev_dbg(dev, "%s - stop bits = 2\n", __func__);
1da177e4
LT		 2273 } else {
2274 config->bStopBits = UMP_UART_STOPBIT1;
67e6da70 2275 dev_dbg(dev, "%s - stop bits = 1\n", __func__);
1da177e4
LT		 2276 }
2277
2278 /* figure out the flow control settings */
2279 if (cflag & CRTSCTS) {
2280 config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X_CTS_FLOW;
2281 config->wFlags |= UMP_MASK_UART_FLAGS_RTS_FLOW;
67e6da70 2282 dev_dbg(dev, "%s - RTS/CTS is enabled\n", __func__);
1da177e4 2283 } else {
67e6da70 2284 dev_dbg(dev, "%s - RTS/CTS is disabled\n", __func__);
1da177e4
LT		 2285 tty->hw_stopped = 0;
2286 restart_read(edge_port);
2287 }
2288
2742fd88
AC		 2289 /* if we are implementing XON/XOFF, set the start and stop
2290 character in the device */
2291 config->cXon = START_CHAR(tty);
2292 config->cXoff = STOP_CHAR(tty);
1da177e4 2293
2742fd88
AC		 2294 /* if we are implementing INBOUND XON/XOFF */
2295 if (I_IXOFF(tty)) {
2296 config->wFlags |= UMP_MASK_UART_FLAGS_IN_X;
67e6da70
GKH		 2297 dev_dbg(dev, "%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n",
2298 __func__, config->cXon, config->cXoff);
2742fd88 2299 } else
67e6da70 2300 dev_dbg(dev, "%s - INBOUND XON/XOFF is disabled\n", __func__);
1da177e4 2301
2742fd88
AC		 2302 /* if we are implementing OUTBOUND XON/XOFF */
2303 if (I_IXON(tty)) {
2304 config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X;
67e6da70
GKH		 2305 dev_dbg(dev, "%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n",
2306 __func__, config->cXon, config->cXoff);
2742fd88 2307 } else
67e6da70 2308 dev_dbg(dev, "%s - OUTBOUND XON/XOFF is disabled\n", __func__);
1da177e4 2309
adc8d746 2310 tty->termios.c_cflag &= ~CMSPAR;
d5f5bcd4 2311
1da177e4
LT		 2312 /* Round the baud rate */
2313 baud = tty_get_baud_rate(tty);
2314 if (!baud) {
2315 /* pick a default, any default... */
2316 baud = 9600;
d5f5bcd4
AC		 2317 } else
2318 tty_encode_baud_rate(tty, baud, baud);
2319
1da177e4
LT		 2320 edge_port->baud_rate = baud;
2321 config->wBaudRate = (__u16)((461550L + baud/2) / baud);
2322
d5f5bcd4
AC		 2323 /* FIXME: Recompute actual baud from divisor here */
2324
67e6da70 2325 dev_dbg(dev, "%s - baud rate = %d, wBaudRate = %d\n", __func__, baud, config->wBaudRate);
1da177e4 2326
67e6da70
GKH		 2327 dev_dbg(dev, "wBaudRate: %d\n", (int)(461550L / config->wBaudRate));
2328 dev_dbg(dev, "wFlags: 0x%x\n", config->wFlags);
2329 dev_dbg(dev, "bDataBits: %d\n", config->bDataBits);
2330 dev_dbg(dev, "bParity: %d\n", config->bParity);
2331 dev_dbg(dev, "bStopBits: %d\n", config->bStopBits);
2332 dev_dbg(dev, "cXon: %d\n", config->cXon);
2333 dev_dbg(dev, "cXoff: %d\n", config->cXoff);
2334 dev_dbg(dev, "bUartMode: %d\n", config->bUartMode);
1da177e4
LT		 2335
2336 /* move the word values into big endian mode */
2742fd88
AC		 2337 cpu_to_be16s(&config->wFlags);
2338 cpu_to_be16s(&config->wBaudRate);
1da177e4 2339
2742fd88 2340 status = send_cmd(edge_port->port->serial->dev, UMPC_SET_CONFIG,
1da177e4 2341 (__u8)(UMPM_UART1_PORT + port_number),
2742fd88
AC		 2342 0, (__u8 *)config, sizeof(*config));
2343 if (status)
67e6da70
GKH		 2344 dev_dbg(dev, "%s - error %d when trying to write config to device\n",
2345 __func__, status);
2742fd88 2346 kfree(config);
1da177e4
LT		 2347}
2348
2e0ddd62 2349static void edge_set_termios(struct tty_struct *tty,
95da310e 2350 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 2351{
2352 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
95da310e
AC		 2353 unsigned int cflag;
2354
adc8d746 2355 cflag = tty->termios.c_cflag;
1da177e4 2356
67e6da70 2357 dev_dbg(&port->dev, "%s - clfag %08x iflag %08x\n", __func__,
d9a80746 2358 tty->termios.c_cflag, tty->termios.c_iflag);
67e6da70
GKH		 2359 dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__,
2360 old_termios->c_cflag, old_termios->c_iflag);
2361 dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number);
1da177e4
LT		 2362
2363 if (edge_port == NULL)
2364 return;
1da177e4 2365 /* change the port settings to the new ones specified */
95da310e 2366 change_port_settings(tty, edge_port, old_termios);
1da177e4
LT		 2367}
2368
20b9d177 2369static int edge_tiocmset(struct tty_struct *tty,
2742fd88 2370 unsigned int set, unsigned int clear)
1da177e4 2371{
95da310e 2372 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2373 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2374 unsigned int mcr;
3d71fe0b 2375 unsigned long flags;
1da177e4 2376
3d71fe0b 2377 spin_lock_irqsave(&edge_port->ep_lock, flags);
1da177e4
LT		 2378 mcr = edge_port->shadow_mcr;
2379 if (set & TIOCM_RTS)
2380 mcr |= MCR_RTS;
2381 if (set & TIOCM_DTR)
2382 mcr |= MCR_DTR;
2383 if (set & TIOCM_LOOP)
2384 mcr |= MCR_LOOPBACK;
2385
2386 if (clear & TIOCM_RTS)
2387 mcr &= ~MCR_RTS;
2388 if (clear & TIOCM_DTR)
2389 mcr &= ~MCR_DTR;
2390 if (clear & TIOCM_LOOP)
2391 mcr &= ~MCR_LOOPBACK;
2392
2393 edge_port->shadow_mcr = mcr;
3d71fe0b 2394 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
1da177e4 2395
2742fd88 2396 restore_mcr(edge_port, mcr);
1da177e4
LT		 2397 return 0;
2398}
2399
60b33c13 2400static int edge_tiocmget(struct tty_struct *tty)
1da177e4 2401{
95da310e 2402 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2403 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2404 unsigned int result = 0;
2405 unsigned int msr;
2406 unsigned int mcr;
3d71fe0b 2407 unsigned long flags;
1da177e4 2408
3d71fe0b
AC		 2409 spin_lock_irqsave(&edge_port->ep_lock, flags);
2410
1da177e4
LT		 2411 msr = edge_port->shadow_msr;
2412 mcr = edge_port->shadow_mcr;
2413 result = ((mcr & MCR_DTR) ? TIOCM_DTR: 0) /* 0x002 */
2414 | ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */
2415 | ((msr & EDGEPORT_MSR_CTS) ? TIOCM_CTS: 0) /* 0x020 */
2416 | ((msr & EDGEPORT_MSR_CD) ? TIOCM_CAR: 0) /* 0x040 */
2417 | ((msr & EDGEPORT_MSR_RI) ? TIOCM_RI: 0) /* 0x080 */
2418 | ((msr & EDGEPORT_MSR_DSR) ? TIOCM_DSR: 0); /* 0x100 */
2419
2420
67e6da70 2421 dev_dbg(&port->dev, "%s -- %x\n", __func__, result);
3d71fe0b 2422 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
1da177e4
LT		 2423
2424 return result;
2425}
2426
0bca1b91
AC		 2427static int edge_get_icount(struct tty_struct *tty,
2428 struct serial_icounter_struct *icount)
2429{
2430 struct usb_serial_port *port = tty->driver_data;
2431 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2432 struct async_icount *ic = &edge_port->icount;
2433
2434 icount->cts = ic->cts;
2435 icount->dsr = ic->dsr;
2436 icount->rng = ic->rng;
2437 icount->dcd = ic->dcd;
2438 icount->tx = ic->tx;
2439 icount->rx = ic->rx;
2440 icount->frame = ic->frame;
2441 icount->parity = ic->parity;
2442 icount->overrun = ic->overrun;
2443 icount->brk = ic->brk;
2444 icount->buf_overrun = ic->buf_overrun;
2445 return 0;
2446}
2447
2742fd88
AC		 2448static int get_serial_info(struct edgeport_port *edge_port,
2449 struct serial_struct __user *retinfo)
1da177e4
LT		 2450{
2451 struct serial_struct tmp;
2452
2453 if (!retinfo)
2454 return -EFAULT;
2455
2456 memset(&tmp, 0, sizeof(tmp));
2457
2458 tmp.type = PORT_16550A;
2459 tmp.line = edge_port->port->serial->minor;
2460 tmp.port = edge_port->port->number;
2461 tmp.irq = 0;
2462 tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
2463 tmp.xmit_fifo_size = edge_port->port->bulk_out_size;
2464 tmp.baud_base = 9600;
2465 tmp.close_delay = 5*HZ;
2466 tmp.closing_wait = closing_wait;
1da177e4
LT		 2467
2468 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
2469 return -EFAULT;
2470 return 0;
2471}
2472
00a0d0d6 2473static int edge_ioctl(struct tty_struct *tty,
2742fd88 2474 unsigned int cmd, unsigned long arg)
1da177e4 2475{
95da310e 2476 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2477 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2478 struct async_icount cnow;
2479 struct async_icount cprev;
2480
67e6da70 2481 dev_dbg(&port->dev, "%s - port %d, cmd = 0x%x\n", __func__, port->number, cmd);
1da177e4
LT		 2482
2483 switch (cmd) {
2742fd88 2484 case TIOCGSERIAL:
67e6da70 2485 dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__);
2742fd88
AC		 2486 return get_serial_info(edge_port,
2487 (struct serial_struct __user *) arg);
2488 case TIOCMIWAIT:
67e6da70 2489 dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__);
2742fd88
AC		 2490 cprev = edge_port->icount;
2491 while (1) {
2492 interruptible_sleep_on(&edge_port->delta_msr_wait);
2493 /* see if a signal did it */
2494 if (signal_pending(current))
2495 return -ERESTARTSYS;
2496 cnow = edge_port->icount;
2497 if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
2498 cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
2499 return -EIO; /* no change => error */
2500 if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
2501 ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
2502 ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
2503 ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) {
2504 return 0;
1da177e4 2505 }
2742fd88
AC		 2506 cprev = cnow;
2507 }
2508 /* not reached */
2509 break;
1da177e4 2510 }
1da177e4
LT		 2511 return -ENOIOCTLCMD;
2512}
2513
95da310e 2514static void edge_break(struct tty_struct *tty, int break_state)
1da177e4 2515{
95da310e 2516 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 2517 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2518 int status;
2742fd88 2519 int bv = 0; /* Off */
1da177e4 2520
1da177e4 2521 /* chase the port close */
2742fd88 2522 chase_port(edge_port, 0, 0);
1da177e4 2523
95da310e 2524 if (break_state == -1)
2742fd88
AC		 2525 bv = 1; /* On */
2526 status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv);
2527 if (status)
67e6da70
GKH		 2528 dev_dbg(&port->dev, "%s - error %d sending break set/clear command.\n",
2529 __func__, status);
1da177e4
LT		 2530}
2531
2742fd88 2532static int edge_startup(struct usb_serial *serial)
1da177e4
LT		 2533{
2534 struct edgeport_serial *edge_serial;
1da177e4 2535 int status;
1da177e4
LT		 2536
2537 /* create our private serial structure */
80b6ca48 2538 edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL);
1da177e4 2539 if (edge_serial == NULL) {
441b62c1 2540 dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__);
1da177e4
LT		 2541 return -ENOMEM;
2542 }
241ca64f 2543 mutex_init(&edge_serial->es_lock);
1da177e4
LT		 2544 edge_serial->serial = serial;
2545 usb_set_serial_data(serial, edge_serial);
2546
2742fd88 2547 status = download_fw(edge_serial);
1da177e4 2548 if (status) {
2742fd88 2549 kfree(edge_serial);
1da177e4
LT		 2550 return status;
2551 }
2552
1da177e4 2553 return 0;
1da177e4
LT		 2554}
2555
f9c99bb8 2556static void edge_disconnect(struct usb_serial *serial)
1da177e4 2557{
f9c99bb8
AS		 2558}
2559
2560static void edge_release(struct usb_serial *serial)
2561{
00361530
JH		 2562 kfree(usb_get_serial_data(serial));
2563}
2564
2565static int edge_port_probe(struct usb_serial_port *port)
2566{
f9c99bb8 2567 struct edgeport_port *edge_port;
00361530 2568 int ret;
f9c99bb8 2569
00361530
JH		 2570 edge_port = kzalloc(sizeof(*edge_port), GFP_KERNEL);
2571 if (!edge_port)
2572 return -ENOMEM;
2573
2574 ret = kfifo_alloc(&edge_port->write_fifo, EDGE_OUT_BUF_SIZE,
2575 GFP_KERNEL);
2576 if (ret) {
2577 kfree(edge_port);
2578 return -ENOMEM;
2579 }
2580
2581 ret = edge_create_sysfs_attrs(port);
2582 if (ret) {
d733cec1 2583 kfifo_free(&edge_port->write_fifo);
0d46c007 2584 kfree(edge_port);
00361530 2585 return ret;
1da177e4 2586 }
00361530
JH		 2587
2588 spin_lock_init(&edge_port->ep_lock);
2589 edge_port->port = port;
2590 edge_port->edge_serial = usb_get_serial_data(port->serial);
2591 edge_port->bUartMode = default_uart_mode;
2592
2593 usb_set_serial_port_data(port, edge_port);
2594
2595 return 0;
1da177e4
LT		 2596}
2597
00361530
JH		 2598static int edge_port_remove(struct usb_serial_port *port)
2599{
2600 struct edgeport_port *edge_port;
2601
2602 edge_port = usb_get_serial_port_data(port);
2603
2604 edge_remove_sysfs_attrs(port);
2605 kfifo_free(&edge_port->write_fifo);
2606 kfree(edge_port);
2607
2608 return 0;
2609}
1da177e4 2610
fc4cbd75
MP		 2611/* Sysfs Attributes */
2612
2613static ssize_t show_uart_mode(struct device *dev,
2614 struct device_attribute *attr, char *buf)
2615{
2616 struct usb_serial_port *port = to_usb_serial_port(dev);
2617 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2618
2619 return sprintf(buf, "%d\n", edge_port->bUartMode);
2620}
2621
2622static ssize_t store_uart_mode(struct device *dev,
2623 struct device_attribute *attr, const char *valbuf, size_t count)
2624{
2625 struct usb_serial_port *port = to_usb_serial_port(dev);
2626 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2627 unsigned int v = simple_strtoul(valbuf, NULL, 0);
2628
67e6da70 2629 dev_dbg(dev, "%s: setting uart_mode = %d\n", __func__, v);
fc4cbd75
MP		 2630
2631 if (v < 256)
2632 edge_port->bUartMode = v;
2633 else
441b62c1 2634 dev_err(dev, "%s - uart_mode %d is invalid\n", __func__, v);
fc4cbd75
MP		 2635
2636 return count;
2637}
2638
2742fd88
AC		 2639static DEVICE_ATTR(uart_mode, S_IWUSR | S_IRUGO, show_uart_mode,
2640 store_uart_mode);
fc4cbd75
MP		 2641
2642static int edge_create_sysfs_attrs(struct usb_serial_port *port)
2643{
2644 return device_create_file(&port->dev, &dev_attr_uart_mode);
2645}
2646
2647static int edge_remove_sysfs_attrs(struct usb_serial_port *port)
2648{
2649 device_remove_file(&port->dev, &dev_attr_uart_mode);
2650 return 0;
2651}
2652
2653
ea65370d 2654static struct usb_serial_driver edgeport_1port_device = {
18fcac35 2655 .driver = {
269bda1c
GKH		 2656 .owner = THIS_MODULE,
2657 .name = "edgeport_ti_1",
18fcac35 2658 },
269bda1c 2659 .description = "Edgeport TI 1 port adapter",
1da177e4 2660 .id_table = edgeport_1port_id_table,
1da177e4
LT		 2661 .num_ports = 1,
2662 .open = edge_open,
2663 .close = edge_close,
2664 .throttle = edge_throttle,
2665 .unthrottle = edge_unthrottle,
2666 .attach = edge_startup,
f9c99bb8
AS		 2667 .disconnect = edge_disconnect,
2668 .release = edge_release,
00361530
JH		 2669 .port_probe = edge_port_probe,
2670 .port_remove = edge_port_remove,
1da177e4
LT		 2671 .ioctl = edge_ioctl,
2672 .set_termios = edge_set_termios,
2673 .tiocmget = edge_tiocmget,
2674 .tiocmset = edge_tiocmset,
0bca1b91 2675 .get_icount = edge_get_icount,
1da177e4
LT		 2676 .write = edge_write,
2677 .write_room = edge_write_room,
2678 .chars_in_buffer = edge_chars_in_buffer,
2679 .break_ctl = edge_break,
2680 .read_int_callback = edge_interrupt_callback,
2681 .read_bulk_callback = edge_bulk_in_callback,
2682 .write_bulk_callback = edge_bulk_out_callback,
2683};
2684
ea65370d 2685static struct usb_serial_driver edgeport_2port_device = {
18fcac35 2686 .driver = {
269bda1c
GKH		 2687 .owner = THIS_MODULE,
2688 .name = "edgeport_ti_2",
18fcac35 2689 },
269bda1c 2690 .description = "Edgeport TI 2 port adapter",
1da177e4 2691 .id_table = edgeport_2port_id_table,
1da177e4
LT		 2692 .num_ports = 2,
2693 .open = edge_open,
2694 .close = edge_close,
2695 .throttle = edge_throttle,
2696 .unthrottle = edge_unthrottle,
2697 .attach = edge_startup,
f9c99bb8
AS		 2698 .disconnect = edge_disconnect,
2699 .release = edge_release,
00361530
JH		 2700 .port_probe = edge_port_probe,
2701 .port_remove = edge_port_remove,
1da177e4
LT		 2702 .ioctl = edge_ioctl,
2703 .set_termios = edge_set_termios,
2704 .tiocmget = edge_tiocmget,
2705 .tiocmset = edge_tiocmset,
2706 .write = edge_write,
2707 .write_room = edge_write_room,
2708 .chars_in_buffer = edge_chars_in_buffer,
2709 .break_ctl = edge_break,
2710 .read_int_callback = edge_interrupt_callback,
2711 .read_bulk_callback = edge_bulk_in_callback,
2712 .write_bulk_callback = edge_bulk_out_callback,
2713};
2714
7dbe2460
AS		 2715static struct usb_serial_driver * const serial_drivers[] = {
2716 &edgeport_1port_device, &edgeport_2port_device, NULL
2717};
2718
68e24113 2719module_usb_serial_driver(serial_drivers, id_table_combined);
1da177e4 2720
1da177e4
LT		 2721MODULE_AUTHOR(DRIVER_AUTHOR);
2722MODULE_DESCRIPTION(DRIVER_DESC);
2723MODULE_LICENSE("GPL");
d12b219a 2724MODULE_FIRMWARE("edgeport/down3.bin");
1da177e4 2725
1da177e4
LT		 2726module_param(closing_wait, int, S_IRUGO | S_IWUSR);
2727MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs");
2728
2729module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR);
2742fd88
AC		 2730MODULE_PARM_DESC(ignore_cpu_rev,
2731 "Ignore the cpu revision when connecting to a device");
1da177e4 2732
fc4cbd75
MP		 2733module_param(default_uart_mode, int, S_IRUGO | S_IWUSR);
2734MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ...");
kernel source for telekom puls (alcatel/mediatek)