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1da177e4 LT |
1 | /* |
2 | * Edgeport USB Serial Converter driver | |
3 | * | |
4 | * Copyright (C) 2000-2002 Inside Out Networks, All rights reserved. | |
5 | * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * Supports the following devices: | |
13 | * EP/1 EP/2 EP/4 EP/21 EP/22 EP/221 EP/42 EP/421 WATCHPORT | |
14 | * | |
15 | * For questions or problems with this driver, contact Inside Out | |
16 | * Networks technical support, or Peter Berger <pberger@brimson.com>, | |
17 | * or Al Borchers <alborchers@steinerpoint.com>. | |
1da177e4 LT |
18 | */ |
19 | ||
1da177e4 LT |
20 | #include <linux/kernel.h> |
21 | #include <linux/jiffies.h> | |
22 | #include <linux/errno.h> | |
23 | #include <linux/init.h> | |
24 | #include <linux/slab.h> | |
25 | #include <linux/tty.h> | |
26 | #include <linux/tty_driver.h> | |
27 | #include <linux/tty_flip.h> | |
28 | #include <linux/module.h> | |
29 | #include <linux/spinlock.h> | |
241ca64f | 30 | #include <linux/mutex.h> |
1da177e4 | 31 | #include <linux/serial.h> |
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 |
75 | struct product_info { |
76 | int TiMode; /* Current TI Mode */ | |
77 | __u8 hardware_type; /* Type of hardware */ | |
1da177e4 LT |
78 | } __attribute__((packed)); |
79 | ||
1da177e4 LT |
80 | struct 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 | ||
106 | struct 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 | 118 | static 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 | 138 | static 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 | 161 | static 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 | 198 | MODULE_DEVICE_TABLE(usb, id_table_combined); |
1da177e4 | 199 | |
d12b219a JS |
200 | static unsigned char OperationalMajorVersion; |
201 | static unsigned char OperationalMinorVersion; | |
202 | static unsigned short OperationalBuildNumber; | |
1da177e4 | 203 | |
1da177e4 | 204 | static int closing_wait = EDGE_CLOSING_WAIT; |
90ab5ee9 | 205 | static bool ignore_cpu_rev; |
2742fd88 | 206 | static int default_uart_mode; /* RS232 */ |
1da177e4 | 207 | |
2742fd88 AC |
208 | static void edge_tty_recv(struct device *dev, struct tty_struct *tty, |
209 | unsigned char *data, int length); | |
1da177e4 LT |
210 | |
211 | static void stop_read(struct edgeport_port *edge_port); | |
212 | static int restart_read(struct edgeport_port *edge_port); | |
213 | ||
95da310e AC |
214 | static void edge_set_termios(struct tty_struct *tty, |
215 | struct usb_serial_port *port, struct ktermios *old_termios); | |
216 | static void edge_send(struct tty_struct *tty); | |
1da177e4 | 217 | |
fc4cbd75 MP |
218 | /* sysfs attributes */ |
219 | static int edge_create_sysfs_attrs(struct usb_serial_port *port); | |
220 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port); | |
221 | ||
1da177e4 | 222 | |
2742fd88 AC |
223 | static 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 |
241 | static 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 | 259 | static 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 | 267 | static 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 | 289 | static 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 |
333 | static 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 |
341 | static 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 |
367 | static 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 |
404 | static 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 | 476 | static 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 */ | |
520 | exit_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 |
528 | static 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 | 584 | static 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 |
606 | static 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 |
624 | static 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 |
640 | static 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 | 668 | static 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 | 684 | static 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 |
760 | out: |
761 | kfree(buffer); | |
762 | kfree(rom_desc); | |
1da177e4 LT |
763 | return status; |
764 | } | |
765 | ||
2742fd88 | 766 | static 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 | |
804 | exit: | |
2742fd88 | 805 | kfree(rom_desc); |
1da177e4 LT |
806 | return status; |
807 | } | |
808 | ||
809 | /* Build firmware header used for firmware update */ | |
2742fd88 | 810 | static 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) { | |
848 | printk(KERN_ERR "Failed to load image \"%s\" err %d\n", | |
849 | fw_name, err); | |
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 | 894 | static 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; |
935 | out: | |
936 | kfree(data); | |
937 | return status; | |
1da177e4 LT |
938 | } |
939 | ||
2742fd88 AC |
940 | static 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 |
953 | static 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!!! */ |
981 | static int config_boot_dev(struct usb_device *dev) | |
1da177e4 LT |
982 | { |
983 | return 0; | |
984 | } | |
985 | ||
2742fd88 AC |
986 | static 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 | 997 | static 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) { | |
1407 | printk(KERN_ERR "Failed to load image \"%s\" err %d\n", | |
1408 | fw_name, err); | |
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 |
1447 | stayinbootmode: |
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 | 1456 | static 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 | 1466 | static 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 | 1482 | static __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 | 1502 | static 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 |
1541 | static 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 | 1582 | static 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 | ||
1670 | exit: | |
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 | 1678 | static 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 | |
1734 | exit: | |
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 |
1747 | static 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 | 1759 | static 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 | 1790 | static 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) |
4a90f09b | 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 | |
1950 | unlink_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 |
1953 | release_es_lock: |
1954 | mutex_unlock(&edge_serial->es_lock); | |
1da177e4 LT |
1955 | return status; |
1956 | } | |
1957 | ||
335f8514 | 1958 | static 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 |
2008 | static 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 | 2030 | static 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 | 2079 | static 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 | 2099 | static 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 | 2119 | static 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 | 2144 | static 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 | ||
2173 | static 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 | ||
2186 | static 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 |
2206 | static 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) { |
2742fd88 | 2221 | *tty->termios = *old_termios; |
67e6da70 | 2222 | dev_err(dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
2223 | return; |
2224 | } | |
2225 | ||
2226 | cflag = tty->termios->c_cflag; | |
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 | |
d5f5bcd4 AC |
2310 | tty->termios->c_cflag &= ~CMSPAR; |
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 | 2349 | static 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 | ||
2355 | cflag = tty->termios->c_cflag; | |
1da177e4 | 2356 | |
67e6da70 GKH |
2357 | dev_dbg(&port->dev, "%s - clfag %08x iflag %08x\n", __func__, |
2358 | tty->termios->c_cflag, tty->termios->c_iflag); | |
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 | 2369 | static 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 | 2400 | static 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 |
2427 | static 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 |
2448 | static 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 | 2473 | static 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 | 2514 | static 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 | 2532 | static int edge_startup(struct usb_serial *serial) |
1da177e4 LT |
2533 | { |
2534 | struct edgeport_serial *edge_serial; | |
2535 | struct edgeport_port *edge_port; | |
2536 | struct usb_device *dev; | |
2537 | int status; | |
2538 | int i; | |
2539 | ||
2540 | dev = serial->dev; | |
2541 | ||
2542 | /* create our private serial structure */ | |
80b6ca48 | 2543 | edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL); |
1da177e4 | 2544 | if (edge_serial == NULL) { |
441b62c1 | 2545 | dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); |
1da177e4 LT |
2546 | return -ENOMEM; |
2547 | } | |
241ca64f | 2548 | mutex_init(&edge_serial->es_lock); |
1da177e4 LT |
2549 | edge_serial->serial = serial; |
2550 | usb_set_serial_data(serial, edge_serial); | |
2551 | ||
2742fd88 | 2552 | status = download_fw(edge_serial); |
1da177e4 | 2553 | if (status) { |
2742fd88 | 2554 | kfree(edge_serial); |
1da177e4 LT |
2555 | return status; |
2556 | } | |
2557 | ||
2558 | /* set up our port private structures */ | |
2559 | for (i = 0; i < serial->num_ports; ++i) { | |
80b6ca48 | 2560 | edge_port = kzalloc(sizeof(struct edgeport_port), GFP_KERNEL); |
1da177e4 | 2561 | if (edge_port == NULL) { |
2742fd88 AC |
2562 | dev_err(&serial->dev->dev, "%s - Out of memory\n", |
2563 | __func__); | |
1da177e4 LT |
2564 | goto cleanup; |
2565 | } | |
1da177e4 | 2566 | spin_lock_init(&edge_port->ep_lock); |
d733cec1 JH |
2567 | if (kfifo_alloc(&edge_port->write_fifo, EDGE_OUT_BUF_SIZE, |
2568 | GFP_KERNEL)) { | |
2742fd88 AC |
2569 | dev_err(&serial->dev->dev, "%s - Out of memory\n", |
2570 | __func__); | |
1da177e4 LT |
2571 | kfree(edge_port); |
2572 | goto cleanup; | |
2573 | } | |
2574 | edge_port->port = serial->port[i]; | |
2575 | edge_port->edge_serial = edge_serial; | |
2576 | usb_set_serial_port_data(serial->port[i], edge_port); | |
fc4cbd75 | 2577 | edge_port->bUartMode = default_uart_mode; |
1da177e4 | 2578 | } |
2742fd88 | 2579 | |
1da177e4 LT |
2580 | return 0; |
2581 | ||
2582 | cleanup: | |
2742fd88 | 2583 | for (--i; i >= 0; --i) { |
1da177e4 | 2584 | edge_port = usb_get_serial_port_data(serial->port[i]); |
d733cec1 | 2585 | kfifo_free(&edge_port->write_fifo); |
1da177e4 LT |
2586 | kfree(edge_port); |
2587 | usb_set_serial_port_data(serial->port[i], NULL); | |
2588 | } | |
2742fd88 | 2589 | kfree(edge_serial); |
1da177e4 LT |
2590 | usb_set_serial_data(serial, NULL); |
2591 | return -ENOMEM; | |
2592 | } | |
2593 | ||
f9c99bb8 | 2594 | static void edge_disconnect(struct usb_serial *serial) |
1da177e4 | 2595 | { |
f9c99bb8 AS |
2596 | } |
2597 | ||
2598 | static void edge_release(struct usb_serial *serial) | |
2599 | { | |
2600 | int i; | |
2601 | struct edgeport_port *edge_port; | |
2602 | ||
f9c99bb8 AS |
2603 | for (i = 0; i < serial->num_ports; ++i) { |
2604 | edge_port = usb_get_serial_port_data(serial->port[i]); | |
d733cec1 | 2605 | kfifo_free(&edge_port->write_fifo); |
0d46c007 | 2606 | kfree(edge_port); |
1da177e4 | 2607 | } |
0d46c007 | 2608 | kfree(usb_get_serial_data(serial)); |
1da177e4 LT |
2609 | } |
2610 | ||
2611 | ||
fc4cbd75 MP |
2612 | /* Sysfs Attributes */ |
2613 | ||
2614 | static ssize_t show_uart_mode(struct device *dev, | |
2615 | struct device_attribute *attr, char *buf) | |
2616 | { | |
2617 | struct usb_serial_port *port = to_usb_serial_port(dev); | |
2618 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2619 | ||
2620 | return sprintf(buf, "%d\n", edge_port->bUartMode); | |
2621 | } | |
2622 | ||
2623 | static ssize_t store_uart_mode(struct device *dev, | |
2624 | struct device_attribute *attr, const char *valbuf, size_t count) | |
2625 | { | |
2626 | struct usb_serial_port *port = to_usb_serial_port(dev); | |
2627 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2628 | unsigned int v = simple_strtoul(valbuf, NULL, 0); | |
2629 | ||
67e6da70 | 2630 | dev_dbg(dev, "%s: setting uart_mode = %d\n", __func__, v); |
fc4cbd75 MP |
2631 | |
2632 | if (v < 256) | |
2633 | edge_port->bUartMode = v; | |
2634 | else | |
441b62c1 | 2635 | dev_err(dev, "%s - uart_mode %d is invalid\n", __func__, v); |
fc4cbd75 MP |
2636 | |
2637 | return count; | |
2638 | } | |
2639 | ||
2742fd88 AC |
2640 | static DEVICE_ATTR(uart_mode, S_IWUSR | S_IRUGO, show_uart_mode, |
2641 | store_uart_mode); | |
fc4cbd75 MP |
2642 | |
2643 | static int edge_create_sysfs_attrs(struct usb_serial_port *port) | |
2644 | { | |
2645 | return device_create_file(&port->dev, &dev_attr_uart_mode); | |
2646 | } | |
2647 | ||
2648 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port) | |
2649 | { | |
2650 | device_remove_file(&port->dev, &dev_attr_uart_mode); | |
2651 | return 0; | |
2652 | } | |
2653 | ||
2654 | ||
ea65370d | 2655 | static struct usb_serial_driver edgeport_1port_device = { |
18fcac35 | 2656 | .driver = { |
269bda1c GKH |
2657 | .owner = THIS_MODULE, |
2658 | .name = "edgeport_ti_1", | |
18fcac35 | 2659 | }, |
269bda1c | 2660 | .description = "Edgeport TI 1 port adapter", |
1da177e4 | 2661 | .id_table = edgeport_1port_id_table, |
1da177e4 LT |
2662 | .num_ports = 1, |
2663 | .open = edge_open, | |
2664 | .close = edge_close, | |
2665 | .throttle = edge_throttle, | |
2666 | .unthrottle = edge_unthrottle, | |
2667 | .attach = edge_startup, | |
f9c99bb8 AS |
2668 | .disconnect = edge_disconnect, |
2669 | .release = edge_release, | |
fc4cbd75 | 2670 | .port_probe = edge_create_sysfs_attrs, |
6d443d84 | 2671 | .port_remove = edge_remove_sysfs_attrs, |
1da177e4 LT |
2672 | .ioctl = edge_ioctl, |
2673 | .set_termios = edge_set_termios, | |
2674 | .tiocmget = edge_tiocmget, | |
2675 | .tiocmset = edge_tiocmset, | |
0bca1b91 | 2676 | .get_icount = edge_get_icount, |
1da177e4 LT |
2677 | .write = edge_write, |
2678 | .write_room = edge_write_room, | |
2679 | .chars_in_buffer = edge_chars_in_buffer, | |
2680 | .break_ctl = edge_break, | |
2681 | .read_int_callback = edge_interrupt_callback, | |
2682 | .read_bulk_callback = edge_bulk_in_callback, | |
2683 | .write_bulk_callback = edge_bulk_out_callback, | |
2684 | }; | |
2685 | ||
ea65370d | 2686 | static struct usb_serial_driver edgeport_2port_device = { |
18fcac35 | 2687 | .driver = { |
269bda1c GKH |
2688 | .owner = THIS_MODULE, |
2689 | .name = "edgeport_ti_2", | |
18fcac35 | 2690 | }, |
269bda1c | 2691 | .description = "Edgeport TI 2 port adapter", |
1da177e4 | 2692 | .id_table = edgeport_2port_id_table, |
1da177e4 LT |
2693 | .num_ports = 2, |
2694 | .open = edge_open, | |
2695 | .close = edge_close, | |
2696 | .throttle = edge_throttle, | |
2697 | .unthrottle = edge_unthrottle, | |
2698 | .attach = edge_startup, | |
f9c99bb8 AS |
2699 | .disconnect = edge_disconnect, |
2700 | .release = edge_release, | |
fc4cbd75 | 2701 | .port_probe = edge_create_sysfs_attrs, |
6d443d84 | 2702 | .port_remove = edge_remove_sysfs_attrs, |
1da177e4 LT |
2703 | .ioctl = edge_ioctl, |
2704 | .set_termios = edge_set_termios, | |
2705 | .tiocmget = edge_tiocmget, | |
2706 | .tiocmset = edge_tiocmset, | |
2707 | .write = edge_write, | |
2708 | .write_room = edge_write_room, | |
2709 | .chars_in_buffer = edge_chars_in_buffer, | |
2710 | .break_ctl = edge_break, | |
2711 | .read_int_callback = edge_interrupt_callback, | |
2712 | .read_bulk_callback = edge_bulk_in_callback, | |
2713 | .write_bulk_callback = edge_bulk_out_callback, | |
2714 | }; | |
2715 | ||
7dbe2460 AS |
2716 | static struct usb_serial_driver * const serial_drivers[] = { |
2717 | &edgeport_1port_device, &edgeport_2port_device, NULL | |
2718 | }; | |
2719 | ||
68e24113 | 2720 | module_usb_serial_driver(serial_drivers, id_table_combined); |
1da177e4 | 2721 | |
1da177e4 LT |
2722 | MODULE_AUTHOR(DRIVER_AUTHOR); |
2723 | MODULE_DESCRIPTION(DRIVER_DESC); | |
2724 | MODULE_LICENSE("GPL"); | |
d12b219a | 2725 | MODULE_FIRMWARE("edgeport/down3.bin"); |
1da177e4 | 2726 | |
1da177e4 LT |
2727 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
2728 | MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs"); | |
2729 | ||
2730 | module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR); | |
2742fd88 AC |
2731 | MODULE_PARM_DESC(ignore_cpu_rev, |
2732 | "Ignore the cpu revision when connecting to a device"); | |
1da177e4 | 2733 | |
fc4cbd75 MP |
2734 | module_param(default_uart_mode, int, S_IRUGO | S_IWUSR); |
2735 | MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ..."); |