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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>. | |
18 | * | |
19 | * Version history: | |
20 | * | |
21 | * July 11, 2002 Removed 4 port device structure since all TI UMP | |
22 | * chips have only 2 ports | |
23 | * David Iacovelli (davidi@ionetworks.com) | |
24 | * | |
25 | */ | |
26 | ||
1da177e4 LT |
27 | #include <linux/kernel.h> |
28 | #include <linux/jiffies.h> | |
29 | #include <linux/errno.h> | |
30 | #include <linux/init.h> | |
31 | #include <linux/slab.h> | |
32 | #include <linux/tty.h> | |
33 | #include <linux/tty_driver.h> | |
34 | #include <linux/tty_flip.h> | |
35 | #include <linux/module.h> | |
36 | #include <linux/spinlock.h> | |
241ca64f | 37 | #include <linux/mutex.h> |
1da177e4 LT |
38 | #include <linux/serial.h> |
39 | #include <linux/ioctl.h> | |
40 | #include <asm/uaccess.h> | |
1da177e4 | 41 | #include <linux/usb.h> |
a969888c | 42 | #include <linux/usb/serial.h> |
1da177e4 | 43 | |
1da177e4 LT |
44 | #include "io_16654.h" |
45 | #include "io_usbvend.h" | |
46 | #include "io_ti.h" | |
47 | ||
48 | /* | |
49 | * Version Information | |
50 | */ | |
fc4cbd75 | 51 | #define DRIVER_VERSION "v0.7mode043006" |
1da177e4 LT |
52 | #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com> and David Iacovelli" |
53 | #define DRIVER_DESC "Edgeport USB Serial Driver" | |
54 | ||
55 | ||
56 | /* firmware image code */ | |
57 | #define IMAGE_VERSION_NAME PagableOperationalCodeImageVersion | |
58 | #define IMAGE_ARRAY_NAME PagableOperationalCodeImage | |
59 | #define IMAGE_SIZE PagableOperationalCodeSize | |
60 | #include "io_fw_down3.h" /* Define array OperationalCodeImage[] */ | |
61 | ||
62 | #define EPROM_PAGE_SIZE 64 | |
63 | ||
64 | ||
65 | struct edgeport_uart_buf_desc { | |
66 | __u32 count; // Number of bytes currently in buffer | |
67 | }; | |
68 | ||
69 | /* different hardware types */ | |
70 | #define HARDWARE_TYPE_930 0 | |
71 | #define HARDWARE_TYPE_TIUMP 1 | |
72 | ||
73 | // IOCTL_PRIVATE_TI_GET_MODE Definitions | |
74 | #define TI_MODE_CONFIGURING 0 // Device has not entered start device | |
75 | #define TI_MODE_BOOT 1 // Staying in boot mode | |
76 | #define TI_MODE_DOWNLOAD 2 // Made it to download mode | |
77 | #define TI_MODE_TRANSITIONING 3 // Currently in boot mode but transitioning to download mode | |
78 | ||
79 | /* read urb state */ | |
80 | #define EDGE_READ_URB_RUNNING 0 | |
81 | #define EDGE_READ_URB_STOPPING 1 | |
82 | #define EDGE_READ_URB_STOPPED 2 | |
83 | ||
84 | #define EDGE_LOW_LATENCY 1 | |
85 | #define EDGE_CLOSING_WAIT 4000 /* in .01 sec */ | |
86 | ||
87 | #define EDGE_OUT_BUF_SIZE 1024 | |
88 | ||
89 | ||
90 | /* Product information read from the Edgeport */ | |
91 | struct product_info | |
92 | { | |
93 | int TiMode; // Current TI Mode | |
94 | __u8 hardware_type; // Type of hardware | |
95 | } __attribute__((packed)); | |
96 | ||
97 | /* circular buffer */ | |
98 | struct edge_buf { | |
99 | unsigned int buf_size; | |
100 | char *buf_buf; | |
101 | char *buf_get; | |
102 | char *buf_put; | |
103 | }; | |
104 | ||
105 | struct edgeport_port { | |
106 | __u16 uart_base; | |
107 | __u16 dma_address; | |
108 | __u8 shadow_msr; | |
109 | __u8 shadow_mcr; | |
110 | __u8 shadow_lsr; | |
111 | __u8 lsr_mask; | |
112 | __u32 ump_read_timeout; /* Number of miliseconds the UMP will | |
113 | wait without data before completing | |
114 | a read short */ | |
115 | int baud_rate; | |
116 | int close_pending; | |
117 | int lsr_event; | |
118 | struct edgeport_uart_buf_desc tx; | |
119 | struct async_icount icount; | |
120 | wait_queue_head_t delta_msr_wait; /* for handling sleeping while | |
121 | waiting for msr change to | |
122 | happen */ | |
123 | struct edgeport_serial *edge_serial; | |
124 | struct usb_serial_port *port; | |
125 | __u8 bUartMode; /* Port type, 0: RS232, etc. */ | |
126 | spinlock_t ep_lock; | |
127 | int ep_read_urb_state; | |
128 | int ep_write_urb_in_use; | |
129 | struct edge_buf *ep_out_buf; | |
130 | }; | |
131 | ||
132 | struct edgeport_serial { | |
133 | struct product_info product_info; | |
134 | u8 TI_I2C_Type; // Type of I2C in UMP | |
135 | u8 TiReadI2C; // Set to TRUE if we have read the I2c in Boot Mode | |
241ca64f | 136 | struct mutex es_lock; |
1da177e4 LT |
137 | int num_ports_open; |
138 | struct usb_serial *serial; | |
139 | }; | |
140 | ||
141 | ||
142 | /* Devices that this driver supports */ | |
143 | static struct usb_device_id edgeport_1port_id_table [] = { | |
144 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, | |
145 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, | |
146 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, | |
147 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, | |
148 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, | |
149 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, | |
150 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, | |
151 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, | |
152 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, | |
153 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, | |
154 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, | |
155 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, | |
156 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, | |
157 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, | |
158 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, | |
159 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, | |
160 | { } | |
161 | }; | |
162 | ||
163 | static struct usb_device_id edgeport_2port_id_table [] = { | |
164 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, | |
165 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, | |
166 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, | |
167 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, | |
168 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, | |
169 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, | |
170 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, | |
171 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, | |
172 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, | |
173 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, | |
174 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, | |
175 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, | |
fc4cbd75 | 176 | /* The 4, 8 and 16 port devices show up as multiple 2 port devices */ |
1da177e4 | 177 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, |
fc4cbd75 MP |
178 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
179 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, | |
180 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, | |
181 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, | |
1da177e4 LT |
182 | { } |
183 | }; | |
184 | ||
185 | /* Devices that this driver supports */ | |
186 | static struct usb_device_id id_table_combined [] = { | |
187 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, | |
188 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, | |
189 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, | |
190 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, | |
191 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, | |
192 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, | |
193 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, | |
194 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, | |
195 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, | |
196 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, | |
197 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, | |
198 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, | |
199 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, | |
200 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, | |
201 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, | |
202 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, | |
203 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, | |
204 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, | |
205 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, | |
206 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, | |
207 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, | |
208 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, | |
209 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, | |
210 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, | |
211 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, | |
212 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, | |
213 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, | |
214 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, | |
215 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, | |
fc4cbd75 MP |
216 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
217 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, | |
218 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, | |
219 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, | |
1da177e4 LT |
220 | { } |
221 | }; | |
222 | ||
223 | MODULE_DEVICE_TABLE (usb, id_table_combined); | |
224 | ||
225 | static struct usb_driver io_driver = { | |
1da177e4 LT |
226 | .name = "io_ti", |
227 | .probe = usb_serial_probe, | |
228 | .disconnect = usb_serial_disconnect, | |
229 | .id_table = id_table_combined, | |
ba9dc657 | 230 | .no_dynamic_id = 1, |
1da177e4 LT |
231 | }; |
232 | ||
233 | ||
234 | static struct EDGE_FIRMWARE_VERSION_INFO OperationalCodeImageVersion; | |
235 | ||
236 | static int debug; | |
237 | ||
238 | static int TIStayInBootMode = 0; | |
239 | static int low_latency = EDGE_LOW_LATENCY; | |
240 | static int closing_wait = EDGE_CLOSING_WAIT; | |
241 | static int ignore_cpu_rev = 0; | |
fc4cbd75 | 242 | static int default_uart_mode = 0; /* RS232 */ |
1da177e4 LT |
243 | |
244 | ||
245 | static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned char *data, int length); | |
246 | ||
247 | static void stop_read(struct edgeport_port *edge_port); | |
248 | static int restart_read(struct edgeport_port *edge_port); | |
249 | ||
606d099c | 250 | static void edge_set_termios (struct usb_serial_port *port, struct ktermios *old_termios); |
1da177e4 LT |
251 | static void edge_send(struct usb_serial_port *port); |
252 | ||
fc4cbd75 MP |
253 | /* sysfs attributes */ |
254 | static int edge_create_sysfs_attrs(struct usb_serial_port *port); | |
255 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port); | |
256 | ||
1da177e4 LT |
257 | /* circular buffer */ |
258 | static struct edge_buf *edge_buf_alloc(unsigned int size); | |
259 | static void edge_buf_free(struct edge_buf *eb); | |
260 | static void edge_buf_clear(struct edge_buf *eb); | |
261 | static unsigned int edge_buf_data_avail(struct edge_buf *eb); | |
262 | static unsigned int edge_buf_space_avail(struct edge_buf *eb); | |
263 | static unsigned int edge_buf_put(struct edge_buf *eb, const char *buf, | |
264 | unsigned int count); | |
265 | static unsigned int edge_buf_get(struct edge_buf *eb, char *buf, | |
266 | unsigned int count); | |
267 | ||
268 | ||
269 | static int TIReadVendorRequestSync (struct usb_device *dev, | |
270 | __u8 request, | |
271 | __u16 value, | |
272 | __u16 index, | |
273 | u8 *data, | |
274 | int size) | |
275 | { | |
276 | int status; | |
277 | ||
278 | status = usb_control_msg (dev, | |
279 | usb_rcvctrlpipe(dev, 0), | |
280 | request, | |
281 | (USB_TYPE_VENDOR | | |
282 | USB_RECIP_DEVICE | | |
283 | USB_DIR_IN), | |
284 | value, | |
285 | index, | |
286 | data, | |
287 | size, | |
288 | 1000); | |
289 | if (status < 0) | |
290 | return status; | |
291 | if (status != size) { | |
292 | dbg ("%s - wanted to write %d, but only wrote %d", | |
293 | __FUNCTION__, size, status); | |
294 | return -ECOMM; | |
295 | } | |
296 | return 0; | |
297 | } | |
298 | ||
299 | static int TISendVendorRequestSync (struct usb_device *dev, | |
300 | __u8 request, | |
301 | __u16 value, | |
302 | __u16 index, | |
303 | u8 *data, | |
304 | int size) | |
305 | { | |
306 | int status; | |
307 | ||
308 | status = usb_control_msg (dev, | |
309 | usb_sndctrlpipe(dev, 0), | |
310 | request, | |
311 | (USB_TYPE_VENDOR | | |
312 | USB_RECIP_DEVICE | | |
313 | USB_DIR_OUT), | |
314 | value, | |
315 | index, | |
316 | data, | |
317 | size, | |
318 | 1000); | |
319 | if (status < 0) | |
320 | return status; | |
321 | if (status != size) { | |
322 | dbg ("%s - wanted to write %d, but only wrote %d", | |
323 | __FUNCTION__, size, status); | |
324 | return -ECOMM; | |
325 | } | |
326 | return 0; | |
327 | } | |
328 | ||
329 | static int TIWriteCommandSync (struct usb_device *dev, __u8 command, | |
330 | __u8 moduleid, __u16 value, u8 *data, | |
331 | int size) | |
332 | { | |
333 | return TISendVendorRequestSync (dev, | |
334 | command, // Request | |
335 | value, // wValue | |
336 | moduleid, // wIndex | |
337 | data, // TransferBuffer | |
338 | size); // TransferBufferLength | |
339 | ||
340 | } | |
341 | ||
342 | /* clear tx/rx buffers and fifo in TI UMP */ | |
343 | static int TIPurgeDataSync (struct usb_serial_port *port, __u16 mask) | |
344 | { | |
345 | int port_number = port->number - port->serial->minor; | |
346 | ||
347 | dbg ("%s - port %d, mask %x", __FUNCTION__, port_number, mask); | |
348 | ||
349 | return TIWriteCommandSync (port->serial->dev, | |
350 | UMPC_PURGE_PORT, | |
351 | (__u8)(UMPM_UART1_PORT + port_number), | |
352 | mask, | |
353 | NULL, | |
354 | 0); | |
355 | } | |
356 | ||
357 | /** | |
358 | * TIReadDownloadMemory - Read edgeport memory from TI chip | |
359 | * @dev: usb device pointer | |
360 | * @start_address: Device CPU address at which to read | |
361 | * @length: Length of above data | |
362 | * @address_type: Can read both XDATA and I2C | |
363 | * @buffer: pointer to input data buffer | |
364 | */ | |
365 | static int TIReadDownloadMemory(struct usb_device *dev, int start_address, | |
366 | int length, __u8 address_type, __u8 *buffer) | |
367 | { | |
368 | int status = 0; | |
369 | __u8 read_length; | |
370 | __be16 be_start_address; | |
371 | ||
372 | dbg ("%s - @ %x for %d", __FUNCTION__, start_address, length); | |
373 | ||
374 | /* Read in blocks of 64 bytes | |
375 | * (TI firmware can't handle more than 64 byte reads) | |
376 | */ | |
377 | while (length) { | |
378 | if (length > 64) | |
379 | read_length= 64; | |
380 | else | |
381 | read_length = (__u8)length; | |
382 | ||
383 | if (read_length > 1) { | |
384 | dbg ("%s - @ %x for %d", __FUNCTION__, | |
385 | start_address, read_length); | |
386 | } | |
387 | be_start_address = cpu_to_be16 (start_address); | |
388 | status = TIReadVendorRequestSync (dev, | |
389 | UMPC_MEMORY_READ, // Request | |
390 | (__u16)address_type, // wValue (Address type) | |
391 | (__force __u16)be_start_address, // wIndex (Address to read) | |
392 | buffer, // TransferBuffer | |
393 | read_length); // TransferBufferLength | |
394 | ||
395 | if (status) { | |
396 | dbg ("%s - ERROR %x", __FUNCTION__, status); | |
397 | return status; | |
398 | } | |
399 | ||
400 | if (read_length > 1) { | |
401 | usb_serial_debug_data(debug, &dev->dev, __FUNCTION__, | |
402 | read_length, buffer); | |
403 | } | |
404 | ||
405 | /* Update pointers/length */ | |
406 | start_address += read_length; | |
407 | buffer += read_length; | |
408 | length -= read_length; | |
409 | } | |
410 | ||
411 | return status; | |
412 | } | |
413 | ||
414 | static int TIReadRam (struct usb_device *dev, int start_address, int length, __u8 *buffer) | |
415 | { | |
416 | return TIReadDownloadMemory (dev, | |
417 | start_address, | |
418 | length, | |
419 | DTK_ADDR_SPACE_XDATA, | |
420 | buffer); | |
421 | } | |
422 | ||
423 | /* Read edgeport memory to a given block */ | |
424 | static int TIReadBootMemory (struct edgeport_serial *serial, int start_address, int length, __u8 * buffer) | |
425 | { | |
426 | int status = 0; | |
427 | int i; | |
428 | ||
429 | for (i=0; i< length; i++) { | |
430 | status = TIReadVendorRequestSync (serial->serial->dev, | |
431 | UMPC_MEMORY_READ, // Request | |
432 | serial->TI_I2C_Type, // wValue (Address type) | |
433 | (__u16)(start_address+i), // wIndex | |
434 | &buffer[i], // TransferBuffer | |
435 | 0x01); // TransferBufferLength | |
436 | if (status) { | |
437 | dbg ("%s - ERROR %x", __FUNCTION__, status); | |
438 | return status; | |
439 | } | |
440 | } | |
441 | ||
442 | dbg ("%s - start_address = %x, length = %d", __FUNCTION__, start_address, length); | |
443 | usb_serial_debug_data(debug, &serial->serial->dev->dev, __FUNCTION__, length, buffer); | |
444 | ||
445 | serial->TiReadI2C = 1; | |
446 | ||
447 | return status; | |
448 | } | |
449 | ||
450 | /* Write given block to TI EPROM memory */ | |
451 | static int TIWriteBootMemory (struct edgeport_serial *serial, int start_address, int length, __u8 *buffer) | |
452 | { | |
453 | int status = 0; | |
454 | int i; | |
455 | __u8 temp; | |
456 | ||
457 | /* Must do a read before write */ | |
458 | if (!serial->TiReadI2C) { | |
459 | status = TIReadBootMemory(serial, 0, 1, &temp); | |
460 | if (status) | |
461 | return status; | |
462 | } | |
463 | ||
464 | for (i=0; i < length; ++i) { | |
465 | status = TISendVendorRequestSync (serial->serial->dev, | |
466 | UMPC_MEMORY_WRITE, // Request | |
467 | buffer[i], // wValue | |
468 | (__u16)(i+start_address), // wIndex | |
469 | NULL, // TransferBuffer | |
470 | 0); // TransferBufferLength | |
471 | if (status) | |
472 | return status; | |
473 | } | |
474 | ||
475 | dbg ("%s - start_sddr = %x, length = %d", __FUNCTION__, start_address, length); | |
476 | usb_serial_debug_data(debug, &serial->serial->dev->dev, __FUNCTION__, length, buffer); | |
477 | ||
478 | return status; | |
479 | } | |
480 | ||
481 | ||
482 | /* Write edgeport I2C memory to TI chip */ | |
483 | static int TIWriteDownloadI2C (struct edgeport_serial *serial, int start_address, int length, __u8 address_type, __u8 *buffer) | |
484 | { | |
485 | int status = 0; | |
486 | int write_length; | |
487 | __be16 be_start_address; | |
488 | ||
489 | /* We can only send a maximum of 1 aligned byte page at a time */ | |
490 | ||
491 | /* calulate the number of bytes left in the first page */ | |
492 | write_length = EPROM_PAGE_SIZE - (start_address & (EPROM_PAGE_SIZE - 1)); | |
493 | ||
494 | if (write_length > length) | |
495 | write_length = length; | |
496 | ||
497 | dbg ("%s - BytesInFirstPage Addr = %x, length = %d", __FUNCTION__, start_address, write_length); | |
498 | usb_serial_debug_data(debug, &serial->serial->dev->dev, __FUNCTION__, write_length, buffer); | |
499 | ||
500 | /* Write first page */ | |
501 | be_start_address = cpu_to_be16 (start_address); | |
502 | status = TISendVendorRequestSync (serial->serial->dev, | |
503 | UMPC_MEMORY_WRITE, // Request | |
504 | (__u16)address_type, // wValue | |
505 | (__force __u16)be_start_address, // wIndex | |
506 | buffer, // TransferBuffer | |
507 | write_length); | |
508 | if (status) { | |
509 | dbg ("%s - ERROR %d", __FUNCTION__, status); | |
510 | return status; | |
511 | } | |
512 | ||
513 | length -= write_length; | |
514 | start_address += write_length; | |
515 | buffer += write_length; | |
516 | ||
517 | /* We should be aligned now -- can write max page size bytes at a time */ | |
518 | while (length) { | |
519 | if (length > EPROM_PAGE_SIZE) | |
520 | write_length = EPROM_PAGE_SIZE; | |
521 | else | |
522 | write_length = length; | |
523 | ||
524 | dbg ("%s - Page Write Addr = %x, length = %d", __FUNCTION__, start_address, write_length); | |
525 | usb_serial_debug_data(debug, &serial->serial->dev->dev, __FUNCTION__, write_length, buffer); | |
526 | ||
527 | /* Write next page */ | |
528 | be_start_address = cpu_to_be16 (start_address); | |
529 | status = TISendVendorRequestSync (serial->serial->dev, | |
530 | UMPC_MEMORY_WRITE, // Request | |
531 | (__u16)address_type, // wValue | |
532 | (__force __u16)be_start_address, // wIndex | |
533 | buffer, // TransferBuffer | |
534 | write_length); // TransferBufferLength | |
535 | if (status) { | |
536 | dev_err (&serial->serial->dev->dev, "%s - ERROR %d\n", __FUNCTION__, status); | |
537 | return status; | |
538 | } | |
539 | ||
540 | length -= write_length; | |
541 | start_address += write_length; | |
542 | buffer += write_length; | |
543 | } | |
544 | return status; | |
545 | } | |
546 | ||
547 | /* Examine the UMP DMA registers and LSR | |
548 | * | |
549 | * Check the MSBit of the X and Y DMA byte count registers. | |
550 | * A zero in this bit indicates that the TX DMA buffers are empty | |
551 | * then check the TX Empty bit in the UART. | |
552 | */ | |
553 | static int TIIsTxActive (struct edgeport_port *port) | |
554 | { | |
555 | int status; | |
556 | struct out_endpoint_desc_block *oedb; | |
557 | __u8 *lsr; | |
558 | int bytes_left = 0; | |
559 | ||
560 | oedb = kmalloc (sizeof (* oedb), GFP_KERNEL); | |
561 | if (!oedb) { | |
562 | dev_err (&port->port->dev, "%s - out of memory\n", __FUNCTION__); | |
563 | return -ENOMEM; | |
564 | } | |
565 | ||
566 | lsr = kmalloc (1, GFP_KERNEL); /* Sigh, that's right, just one byte, | |
567 | as not all platforms can do DMA | |
568 | from stack */ | |
569 | if (!lsr) { | |
570 | kfree(oedb); | |
571 | return -ENOMEM; | |
572 | } | |
573 | /* Read the DMA Count Registers */ | |
574 | status = TIReadRam (port->port->serial->dev, | |
575 | port->dma_address, | |
576 | sizeof( *oedb), | |
577 | (void *)oedb); | |
578 | ||
579 | if (status) | |
580 | goto exit_is_tx_active; | |
581 | ||
582 | dbg ("%s - XByteCount 0x%X", __FUNCTION__, oedb->XByteCount); | |
583 | ||
584 | /* and the LSR */ | |
585 | status = TIReadRam (port->port->serial->dev, | |
586 | port->uart_base + UMPMEM_OFFS_UART_LSR, | |
587 | 1, | |
588 | lsr); | |
589 | ||
590 | if (status) | |
591 | goto exit_is_tx_active; | |
592 | dbg ("%s - LSR = 0x%X", __FUNCTION__, *lsr); | |
593 | ||
594 | /* If either buffer has data or we are transmitting then return TRUE */ | |
595 | if ((oedb->XByteCount & 0x80 ) != 0 ) | |
596 | bytes_left += 64; | |
597 | ||
598 | if ((*lsr & UMP_UART_LSR_TX_MASK ) == 0 ) | |
599 | bytes_left += 1; | |
600 | ||
601 | /* We return Not Active if we get any kind of error */ | |
602 | exit_is_tx_active: | |
603 | dbg ("%s - return %d", __FUNCTION__, bytes_left ); | |
604 | ||
605 | kfree(lsr); | |
606 | kfree(oedb); | |
607 | return bytes_left; | |
608 | } | |
609 | ||
610 | static void TIChasePort(struct edgeport_port *port, unsigned long timeout, int flush) | |
611 | { | |
612 | int baud_rate; | |
613 | struct tty_struct *tty = port->port->tty; | |
614 | wait_queue_t wait; | |
615 | unsigned long flags; | |
616 | ||
617 | if (!timeout) | |
618 | timeout = (HZ*EDGE_CLOSING_WAIT)/100; | |
619 | ||
620 | /* wait for data to drain from the buffer */ | |
621 | spin_lock_irqsave(&port->ep_lock, flags); | |
622 | init_waitqueue_entry(&wait, current); | |
623 | add_wait_queue(&tty->write_wait, &wait); | |
624 | for (;;) { | |
625 | set_current_state(TASK_INTERRUPTIBLE); | |
626 | if (edge_buf_data_avail(port->ep_out_buf) == 0 | |
627 | || timeout == 0 || signal_pending(current) | |
628 | || !usb_get_intfdata(port->port->serial->interface)) /* disconnect */ | |
629 | break; | |
630 | spin_unlock_irqrestore(&port->ep_lock, flags); | |
631 | timeout = schedule_timeout(timeout); | |
632 | spin_lock_irqsave(&port->ep_lock, flags); | |
633 | } | |
634 | set_current_state(TASK_RUNNING); | |
635 | remove_wait_queue(&tty->write_wait, &wait); | |
636 | if (flush) | |
637 | edge_buf_clear(port->ep_out_buf); | |
638 | spin_unlock_irqrestore(&port->ep_lock, flags); | |
639 | ||
640 | /* wait for data to drain from the device */ | |
641 | timeout += jiffies; | |
642 | while ((long)(jiffies - timeout) < 0 && !signal_pending(current) | |
643 | && usb_get_intfdata(port->port->serial->interface)) { /* not disconnected */ | |
644 | if (!TIIsTxActive(port)) | |
645 | break; | |
646 | msleep(10); | |
647 | } | |
648 | ||
649 | /* disconnected */ | |
650 | if (!usb_get_intfdata(port->port->serial->interface)) | |
651 | return; | |
652 | ||
653 | /* wait one more character time, based on baud rate */ | |
654 | /* (TIIsTxActive doesn't seem to wait for the last byte) */ | |
655 | if ((baud_rate=port->baud_rate) == 0) | |
656 | baud_rate = 50; | |
657 | msleep(max(1,(10000+baud_rate-1)/baud_rate)); | |
658 | } | |
659 | ||
660 | static int TIChooseConfiguration (struct usb_device *dev) | |
661 | { | |
662 | // There may be multiple configurations on this device, in which case | |
663 | // we would need to read and parse all of them to find out which one | |
664 | // we want. However, we just support one config at this point, | |
665 | // configuration # 1, which is Config Descriptor 0. | |
666 | ||
667 | dbg ("%s - Number of Interfaces = %d", __FUNCTION__, dev->config->desc.bNumInterfaces); | |
668 | dbg ("%s - MAX Power = %d", __FUNCTION__, dev->config->desc.bMaxPower*2); | |
669 | ||
670 | if (dev->config->desc.bNumInterfaces != 1) { | |
671 | dev_err (&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n", __FUNCTION__); | |
672 | return -ENODEV; | |
673 | } | |
674 | ||
675 | return 0; | |
676 | } | |
677 | ||
678 | static int TIReadRom (struct edgeport_serial *serial, int start_address, int length, __u8 *buffer) | |
679 | { | |
680 | int status; | |
681 | ||
682 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { | |
683 | status = TIReadDownloadMemory (serial->serial->dev, | |
684 | start_address, | |
685 | length, | |
686 | serial->TI_I2C_Type, | |
687 | buffer); | |
688 | } else { | |
689 | status = TIReadBootMemory (serial, | |
690 | start_address, | |
691 | length, | |
692 | buffer); | |
693 | } | |
694 | ||
695 | return status; | |
696 | } | |
697 | ||
698 | static int TIWriteRom (struct edgeport_serial *serial, int start_address, int length, __u8 *buffer) | |
699 | { | |
700 | if (serial->product_info.TiMode == TI_MODE_BOOT) | |
701 | return TIWriteBootMemory (serial, | |
702 | start_address, | |
703 | length, | |
704 | buffer); | |
705 | ||
706 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) | |
707 | return TIWriteDownloadI2C (serial, | |
708 | start_address, | |
709 | length, | |
710 | serial->TI_I2C_Type, | |
711 | buffer); | |
712 | ||
713 | return -EINVAL; | |
714 | } | |
715 | ||
716 | ||
717 | ||
718 | /* Read a descriptor header from I2C based on type */ | |
719 | static int TIGetDescriptorAddress (struct edgeport_serial *serial, int desc_type, struct ti_i2c_desc *rom_desc) | |
720 | { | |
721 | int start_address; | |
722 | int status; | |
723 | ||
724 | /* Search for requested descriptor in I2C */ | |
725 | start_address = 2; | |
726 | do { | |
727 | status = TIReadRom (serial, | |
728 | start_address, | |
729 | sizeof(struct ti_i2c_desc), | |
730 | (__u8 *)rom_desc ); | |
731 | if (status) | |
732 | return 0; | |
733 | ||
734 | if (rom_desc->Type == desc_type) | |
735 | return start_address; | |
736 | ||
737 | start_address = start_address + sizeof(struct ti_i2c_desc) + rom_desc->Size; | |
738 | ||
739 | } while ((start_address < TI_MAX_I2C_SIZE) && rom_desc->Type); | |
740 | ||
741 | return 0; | |
742 | } | |
743 | ||
744 | /* Validate descriptor checksum */ | |
745 | static int ValidChecksum(struct ti_i2c_desc *rom_desc, __u8 *buffer) | |
746 | { | |
747 | __u16 i; | |
748 | __u8 cs = 0; | |
749 | ||
750 | for (i=0; i < rom_desc->Size; i++) { | |
751 | cs = (__u8)(cs + buffer[i]); | |
752 | } | |
753 | if (cs != rom_desc->CheckSum) { | |
754 | dbg ("%s - Mismatch %x - %x", __FUNCTION__, rom_desc->CheckSum, cs); | |
755 | return -EINVAL; | |
756 | } | |
757 | return 0; | |
758 | } | |
759 | ||
760 | /* Make sure that the I2C image is good */ | |
761 | static int TiValidateI2cImage (struct edgeport_serial *serial) | |
762 | { | |
763 | struct device *dev = &serial->serial->dev->dev; | |
764 | int status = 0; | |
765 | struct ti_i2c_desc *rom_desc; | |
766 | int start_address = 2; | |
767 | __u8 *buffer; | |
768 | __u16 ttype; | |
769 | ||
770 | rom_desc = kmalloc (sizeof (*rom_desc), GFP_KERNEL); | |
771 | if (!rom_desc) { | |
772 | dev_err (dev, "%s - out of memory\n", __FUNCTION__); | |
773 | return -ENOMEM; | |
774 | } | |
775 | buffer = kmalloc (TI_MAX_I2C_SIZE, GFP_KERNEL); | |
776 | if (!buffer) { | |
777 | dev_err (dev, "%s - out of memory when allocating buffer\n", __FUNCTION__); | |
778 | kfree (rom_desc); | |
779 | return -ENOMEM; | |
780 | } | |
781 | ||
782 | // Read the first byte (Signature0) must be 0x52 or 0x10 | |
783 | status = TIReadRom (serial, 0, 1, buffer); | |
784 | if (status) | |
785 | goto ExitTiValidateI2cImage; | |
786 | ||
787 | if (*buffer != UMP5152 && *buffer != UMP3410) { | |
788 | dev_err (dev, "%s - invalid buffer signature\n", __FUNCTION__); | |
789 | status = -ENODEV; | |
790 | goto ExitTiValidateI2cImage; | |
791 | } | |
792 | ||
793 | do { | |
794 | // Validate the I2C | |
795 | status = TIReadRom (serial, | |
796 | start_address, | |
797 | sizeof(struct ti_i2c_desc), | |
798 | (__u8 *)rom_desc); | |
799 | if (status) | |
800 | break; | |
801 | ||
802 | if ((start_address + sizeof(struct ti_i2c_desc) + rom_desc->Size) > TI_MAX_I2C_SIZE) { | |
803 | status = -ENODEV; | |
804 | dbg ("%s - structure too big, erroring out.", __FUNCTION__); | |
805 | break; | |
806 | } | |
807 | ||
808 | dbg ("%s Type = 0x%x", __FUNCTION__, rom_desc->Type); | |
809 | ||
810 | // Skip type 2 record | |
811 | ttype = rom_desc->Type & 0x0f; | |
812 | if ( ttype != I2C_DESC_TYPE_FIRMWARE_BASIC | |
813 | && ttype != I2C_DESC_TYPE_FIRMWARE_AUTO ) { | |
814 | // Read the descriptor data | |
815 | status = TIReadRom(serial, | |
816 | start_address+sizeof(struct ti_i2c_desc), | |
817 | rom_desc->Size, | |
818 | buffer); | |
819 | if (status) | |
820 | break; | |
821 | ||
822 | status = ValidChecksum(rom_desc, buffer); | |
823 | if (status) | |
824 | break; | |
825 | } | |
826 | start_address = start_address + sizeof(struct ti_i2c_desc) + rom_desc->Size; | |
827 | ||
828 | } while ((rom_desc->Type != I2C_DESC_TYPE_ION) && (start_address < TI_MAX_I2C_SIZE)); | |
829 | ||
830 | if ((rom_desc->Type != I2C_DESC_TYPE_ION) || (start_address > TI_MAX_I2C_SIZE)) | |
831 | status = -ENODEV; | |
832 | ||
833 | ExitTiValidateI2cImage: | |
834 | kfree (buffer); | |
835 | kfree (rom_desc); | |
836 | return status; | |
837 | } | |
838 | ||
839 | static int TIReadManufDescriptor (struct edgeport_serial *serial, __u8 *buffer) | |
840 | { | |
841 | int status; | |
842 | int start_address; | |
843 | struct ti_i2c_desc *rom_desc; | |
844 | struct edge_ti_manuf_descriptor *desc; | |
845 | ||
846 | rom_desc = kmalloc (sizeof (*rom_desc), GFP_KERNEL); | |
847 | if (!rom_desc) { | |
848 | dev_err (&serial->serial->dev->dev, "%s - out of memory\n", __FUNCTION__); | |
849 | return -ENOMEM; | |
850 | } | |
851 | start_address = TIGetDescriptorAddress (serial, I2C_DESC_TYPE_ION, rom_desc); | |
852 | ||
853 | if (!start_address) { | |
854 | dbg ("%s - Edge Descriptor not found in I2C", __FUNCTION__); | |
855 | status = -ENODEV; | |
856 | goto exit; | |
857 | } | |
858 | ||
859 | // Read the descriptor data | |
860 | status = TIReadRom (serial, | |
861 | start_address+sizeof(struct ti_i2c_desc), | |
862 | rom_desc->Size, | |
863 | buffer); | |
864 | if (status) | |
865 | goto exit; | |
866 | ||
867 | status = ValidChecksum(rom_desc, buffer); | |
868 | ||
869 | desc = (struct edge_ti_manuf_descriptor *)buffer; | |
870 | dbg ( "%s - IonConfig 0x%x", __FUNCTION__, desc->IonConfig ); | |
871 | dbg ( "%s - Version %d", __FUNCTION__, desc->Version ); | |
872 | dbg ( "%s - Cpu/Board 0x%x", __FUNCTION__, desc->CpuRev_BoardRev ); | |
873 | dbg ( "%s - NumPorts %d", __FUNCTION__, desc->NumPorts ); | |
874 | dbg ( "%s - NumVirtualPorts %d", __FUNCTION__, desc->NumVirtualPorts ); | |
875 | dbg ( "%s - TotalPorts %d", __FUNCTION__, desc->TotalPorts ); | |
876 | ||
877 | exit: | |
878 | kfree (rom_desc); | |
879 | return status; | |
880 | } | |
881 | ||
882 | /* Build firmware header used for firmware update */ | |
883 | static int BuildI2CFirmwareHeader (__u8 *header, struct device *dev) | |
884 | { | |
885 | __u8 *buffer; | |
886 | int buffer_size; | |
887 | int i; | |
888 | __u8 cs = 0; | |
889 | struct ti_i2c_desc *i2c_header; | |
890 | struct ti_i2c_image_header *img_header; | |
891 | struct ti_i2c_firmware_rec *firmware_rec; | |
892 | ||
893 | // In order to update the I2C firmware we must change the type 2 record to type 0xF2. | |
894 | // This will force the UMP to come up in Boot Mode. Then while in boot mode, the driver | |
895 | // will download the latest firmware (padded to 15.5k) into the UMP ram. | |
896 | // And finally when the device comes back up in download mode the driver will cause | |
897 | // the new firmware to be copied from the UMP Ram to I2C and the firmware will update | |
898 | // the record type from 0xf2 to 0x02. | |
899 | ||
900 | // Allocate a 15.5k buffer + 2 bytes for version number (Firmware Record) | |
901 | buffer_size = (((1024 * 16) - 512 )+ sizeof(struct ti_i2c_firmware_rec)); | |
902 | ||
903 | buffer = kmalloc (buffer_size, GFP_KERNEL); | |
904 | if (!buffer) { | |
905 | dev_err (dev, "%s - out of memory\n", __FUNCTION__); | |
906 | return -ENOMEM; | |
907 | } | |
908 | ||
909 | // Set entire image of 0xffs | |
910 | memset (buffer, 0xff, buffer_size); | |
911 | ||
912 | // Copy version number into firmware record | |
913 | firmware_rec = (struct ti_i2c_firmware_rec *)buffer; | |
914 | ||
915 | firmware_rec->Ver_Major = OperationalCodeImageVersion.MajorVersion; | |
916 | firmware_rec->Ver_Minor = OperationalCodeImageVersion.MinorVersion; | |
917 | ||
918 | // Pointer to fw_down memory image | |
919 | img_header = (struct ti_i2c_image_header *)&PagableOperationalCodeImage[0]; | |
920 | ||
921 | memcpy (buffer + sizeof(struct ti_i2c_firmware_rec), | |
922 | &PagableOperationalCodeImage[sizeof(struct ti_i2c_image_header)], | |
923 | le16_to_cpu(img_header->Length)); | |
924 | ||
925 | for (i=0; i < buffer_size; i++) { | |
926 | cs = (__u8)(cs + buffer[i]); | |
927 | } | |
928 | ||
929 | kfree (buffer); | |
930 | ||
931 | // Build new header | |
932 | i2c_header = (struct ti_i2c_desc *)header; | |
933 | firmware_rec = (struct ti_i2c_firmware_rec*)i2c_header->Data; | |
934 | ||
935 | i2c_header->Type = I2C_DESC_TYPE_FIRMWARE_BLANK; | |
936 | i2c_header->Size = (__u16)buffer_size; | |
937 | i2c_header->CheckSum = cs; | |
938 | firmware_rec->Ver_Major = OperationalCodeImageVersion.MajorVersion; | |
939 | firmware_rec->Ver_Minor = OperationalCodeImageVersion.MinorVersion; | |
940 | ||
941 | return 0; | |
942 | } | |
943 | ||
944 | /* Try to figure out what type of I2c we have */ | |
945 | static int TIGetI2cTypeInBootMode (struct edgeport_serial *serial) | |
946 | { | |
947 | int status; | |
948 | __u8 data; | |
949 | ||
950 | // Try to read type 2 | |
951 | status = TIReadVendorRequestSync (serial->serial->dev, | |
952 | UMPC_MEMORY_READ, // Request | |
953 | DTK_ADDR_SPACE_I2C_TYPE_II, // wValue (Address type) | |
954 | 0, // wIndex | |
955 | &data, // TransferBuffer | |
956 | 0x01); // TransferBufferLength | |
957 | if (status) | |
958 | dbg ("%s - read 2 status error = %d", __FUNCTION__, status); | |
959 | else | |
960 | dbg ("%s - read 2 data = 0x%x", __FUNCTION__, data); | |
961 | if ((!status) && (data == UMP5152 || data == UMP3410)) { | |
962 | dbg ("%s - ROM_TYPE_II", __FUNCTION__); | |
963 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; | |
964 | return 0; | |
965 | } | |
966 | ||
967 | // Try to read type 3 | |
968 | status = TIReadVendorRequestSync (serial->serial->dev, | |
969 | UMPC_MEMORY_READ, // Request | |
970 | DTK_ADDR_SPACE_I2C_TYPE_III, // wValue (Address type) | |
971 | 0, // wIndex | |
972 | &data, // TransferBuffer | |
973 | 0x01); // TransferBufferLength | |
974 | if (status) | |
975 | dbg ("%s - read 3 status error = %d", __FUNCTION__, status); | |
976 | else | |
977 | dbg ("%s - read 2 data = 0x%x", __FUNCTION__, data); | |
978 | if ((!status) && (data == UMP5152 || data == UMP3410)) { | |
979 | dbg ("%s - ROM_TYPE_III", __FUNCTION__); | |
980 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III; | |
981 | return 0; | |
982 | } | |
983 | ||
984 | dbg ("%s - Unknown", __FUNCTION__); | |
985 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; | |
986 | return -ENODEV; | |
987 | } | |
988 | ||
989 | static int TISendBulkTransferSync (struct usb_serial *serial, void *buffer, int length, int *num_sent) | |
990 | { | |
991 | int status; | |
992 | ||
993 | status = usb_bulk_msg (serial->dev, | |
994 | usb_sndbulkpipe(serial->dev, | |
995 | serial->port[0]->bulk_out_endpointAddress), | |
996 | buffer, | |
997 | length, | |
998 | num_sent, | |
999 | 1000); | |
1000 | return status; | |
1001 | } | |
1002 | ||
1003 | /* Download given firmware image to the device (IN BOOT MODE) */ | |
1004 | static int TIDownloadCodeImage (struct edgeport_serial *serial, __u8 *image, int image_length) | |
1005 | { | |
1006 | int status = 0; | |
1007 | int pos; | |
1008 | int transfer; | |
1009 | int done; | |
1010 | ||
1011 | // Transfer firmware image | |
1012 | for (pos = 0; pos < image_length; ) { | |
1013 | // Read the next buffer from file | |
1014 | transfer = image_length - pos; | |
1015 | if (transfer > EDGE_FW_BULK_MAX_PACKET_SIZE) | |
1016 | transfer = EDGE_FW_BULK_MAX_PACKET_SIZE; | |
1017 | ||
1018 | // Transfer data | |
1019 | status = TISendBulkTransferSync (serial->serial, &image[pos], transfer, &done); | |
1020 | if (status) | |
1021 | break; | |
1022 | // Advance buffer pointer | |
1023 | pos += done; | |
1024 | } | |
1025 | ||
1026 | return status; | |
1027 | } | |
1028 | ||
1029 | // FIXME!!! | |
1030 | static int TIConfigureBootDevice (struct usb_device *dev) | |
1031 | { | |
1032 | return 0; | |
1033 | } | |
1034 | ||
1035 | /** | |
1036 | * DownloadTIFirmware - Download run-time operating firmware to the TI5052 | |
1037 | * | |
1038 | * This routine downloads the main operating code into the TI5052, using the | |
1039 | * boot code already burned into E2PROM or ROM. | |
1040 | */ | |
1041 | static int TIDownloadFirmware (struct edgeport_serial *serial) | |
1042 | { | |
1043 | struct device *dev = &serial->serial->dev->dev; | |
1044 | int status = 0; | |
1045 | int start_address; | |
1046 | struct edge_ti_manuf_descriptor *ti_manuf_desc; | |
1047 | struct usb_interface_descriptor *interface; | |
1048 | int download_cur_ver; | |
1049 | int download_new_ver; | |
1050 | ||
1051 | /* This routine is entered by both the BOOT mode and the Download mode | |
1052 | * We can determine which code is running by the reading the config | |
1053 | * descriptor and if we have only one bulk pipe it is in boot mode | |
1054 | */ | |
1055 | serial->product_info.hardware_type = HARDWARE_TYPE_TIUMP; | |
1056 | ||
1057 | /* Default to type 2 i2c */ | |
1058 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; | |
1059 | ||
1060 | status = TIChooseConfiguration (serial->serial->dev); | |
1061 | if (status) | |
1062 | return status; | |
1063 | ||
1064 | interface = &serial->serial->interface->cur_altsetting->desc; | |
1065 | if (!interface) { | |
1066 | dev_err (dev, "%s - no interface set, error!\n", __FUNCTION__); | |
1067 | return -ENODEV; | |
1068 | } | |
1069 | ||
1070 | // Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING | |
1071 | // if we have more than one endpoint we are definitely in download mode | |
1072 | if (interface->bNumEndpoints > 1) | |
1073 | serial->product_info.TiMode = TI_MODE_DOWNLOAD; | |
1074 | else | |
1075 | // Otherwise we will remain in configuring mode | |
1076 | serial->product_info.TiMode = TI_MODE_CONFIGURING; | |
1077 | ||
1078 | // Save Download Version Number | |
1079 | OperationalCodeImageVersion.MajorVersion = PagableOperationalCodeImageVersion.MajorVersion; | |
1080 | OperationalCodeImageVersion.MinorVersion = PagableOperationalCodeImageVersion.MinorVersion; | |
1081 | OperationalCodeImageVersion.BuildNumber = PagableOperationalCodeImageVersion.BuildNumber; | |
1082 | ||
1083 | /********************************************************************/ | |
1084 | /* Download Mode */ | |
1085 | /********************************************************************/ | |
1086 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { | |
1087 | struct ti_i2c_desc *rom_desc; | |
1088 | ||
9544e833 | 1089 | dbg("%s - RUNNING IN DOWNLOAD MODE", __func__); |
1da177e4 LT |
1090 | |
1091 | status = TiValidateI2cImage (serial); | |
1092 | if (status) { | |
9544e833 | 1093 | dbg("%s - DOWNLOAD MODE -- BAD I2C", __func__); |
1da177e4 LT |
1094 | return status; |
1095 | } | |
1096 | ||
1097 | /* Validate Hardware version number | |
1098 | * Read Manufacturing Descriptor from TI Based Edgeport | |
1099 | */ | |
1100 | ti_manuf_desc = kmalloc (sizeof (*ti_manuf_desc), GFP_KERNEL); | |
1101 | if (!ti_manuf_desc) { | |
1102 | dev_err (dev, "%s - out of memory.\n", __FUNCTION__); | |
1103 | return -ENOMEM; | |
1104 | } | |
1105 | status = TIReadManufDescriptor (serial, (__u8 *)ti_manuf_desc); | |
1106 | if (status) { | |
1107 | kfree (ti_manuf_desc); | |
1108 | return status; | |
1109 | } | |
1110 | ||
1111 | // Check version number of ION descriptor | |
1112 | if (!ignore_cpu_rev && TI_GET_CPU_REVISION(ti_manuf_desc->CpuRev_BoardRev) < 2) { | |
1113 | dbg ( "%s - Wrong CPU Rev %d (Must be 2)", __FUNCTION__, | |
1114 | TI_GET_CPU_REVISION(ti_manuf_desc->CpuRev_BoardRev)); | |
1115 | kfree (ti_manuf_desc); | |
1116 | return -EINVAL; | |
1117 | } | |
1118 | ||
1119 | rom_desc = kmalloc (sizeof (*rom_desc), GFP_KERNEL); | |
1120 | if (!rom_desc) { | |
1121 | dev_err (dev, "%s - out of memory.\n", __FUNCTION__); | |
1122 | kfree (ti_manuf_desc); | |
1123 | return -ENOMEM; | |
1124 | } | |
1125 | ||
1126 | // Search for type 2 record (firmware record) | |
1127 | if ((start_address = TIGetDescriptorAddress (serial, I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc)) != 0) { | |
1128 | struct ti_i2c_firmware_rec *firmware_version; | |
1129 | __u8 record; | |
1130 | ||
1131 | dbg ("%s - Found Type FIRMWARE (Type 2) record", __FUNCTION__); | |
1132 | ||
1133 | firmware_version = kmalloc (sizeof (*firmware_version), GFP_KERNEL); | |
1134 | if (!firmware_version) { | |
1135 | dev_err (dev, "%s - out of memory.\n", __FUNCTION__); | |
1136 | kfree (rom_desc); | |
1137 | kfree (ti_manuf_desc); | |
1138 | return -ENOMEM; | |
1139 | } | |
1140 | ||
1141 | // Validate version number | |
1142 | // Read the descriptor data | |
1143 | status = TIReadRom (serial, | |
1144 | start_address+sizeof(struct ti_i2c_desc), | |
1145 | sizeof(struct ti_i2c_firmware_rec), | |
1146 | (__u8 *)firmware_version); | |
1147 | if (status) { | |
1148 | kfree (firmware_version); | |
1149 | kfree (rom_desc); | |
1150 | kfree (ti_manuf_desc); | |
1151 | return status; | |
1152 | } | |
1153 | ||
1154 | // Check version number of download with current version in I2c | |
1155 | download_cur_ver = (firmware_version->Ver_Major << 8) + | |
1156 | (firmware_version->Ver_Minor); | |
1157 | download_new_ver = (OperationalCodeImageVersion.MajorVersion << 8) + | |
1158 | (OperationalCodeImageVersion.MinorVersion); | |
1159 | ||
1160 | dbg ("%s - >>>Firmware Versions Device %d.%d Driver %d.%d", | |
1161 | __FUNCTION__, | |
1162 | firmware_version->Ver_Major, | |
1163 | firmware_version->Ver_Minor, | |
1164 | OperationalCodeImageVersion.MajorVersion, | |
1165 | OperationalCodeImageVersion.MinorVersion); | |
1166 | ||
1167 | // Check if we have an old version in the I2C and update if necessary | |
1168 | if (download_cur_ver != download_new_ver) { | |
1169 | dbg ("%s - Update I2C Download from %d.%d to %d.%d", | |
1170 | __FUNCTION__, | |
1171 | firmware_version->Ver_Major, | |
1172 | firmware_version->Ver_Minor, | |
1173 | OperationalCodeImageVersion.MajorVersion, | |
1174 | OperationalCodeImageVersion.MinorVersion); | |
1175 | ||
1176 | // In order to update the I2C firmware we must change the type 2 record to type 0xF2. | |
1177 | // This will force the UMP to come up in Boot Mode. Then while in boot mode, the driver | |
1178 | // will download the latest firmware (padded to 15.5k) into the UMP ram. | |
1179 | // And finally when the device comes back up in download mode the driver will cause | |
1180 | // the new firmware to be copied from the UMP Ram to I2C and the firmware will update | |
1181 | // the record type from 0xf2 to 0x02. | |
1182 | ||
1183 | record = I2C_DESC_TYPE_FIRMWARE_BLANK; | |
1184 | ||
1185 | // Change the I2C Firmware record type to 0xf2 to trigger an update | |
1186 | status = TIWriteRom (serial, | |
1187 | start_address, | |
1188 | sizeof(record), | |
1189 | &record); | |
1190 | if (status) { | |
1191 | kfree (firmware_version); | |
1192 | kfree (rom_desc); | |
1193 | kfree (ti_manuf_desc); | |
1194 | return status; | |
1195 | } | |
1196 | ||
1197 | // verify the write -- must do this in order for write to | |
1198 | // complete before we do the hardware reset | |
1199 | status = TIReadRom (serial, | |
1200 | start_address, | |
1201 | sizeof(record), | |
1202 | &record); | |
1203 | ||
1204 | if (status) { | |
1205 | kfree (firmware_version); | |
1206 | kfree (rom_desc); | |
1207 | kfree (ti_manuf_desc); | |
1208 | return status; | |
1209 | } | |
1210 | ||
1211 | if (record != I2C_DESC_TYPE_FIRMWARE_BLANK) { | |
1212 | dev_err (dev, "%s - error resetting device\n", __FUNCTION__); | |
1213 | kfree (firmware_version); | |
1214 | kfree (rom_desc); | |
1215 | kfree (ti_manuf_desc); | |
1216 | return -ENODEV; | |
1217 | } | |
1218 | ||
1219 | dbg ("%s - HARDWARE RESET", __FUNCTION__); | |
1220 | ||
1221 | // Reset UMP -- Back to BOOT MODE | |
1222 | status = TISendVendorRequestSync (serial->serial->dev, | |
1223 | UMPC_HARDWARE_RESET, // Request | |
1224 | 0, // wValue | |
1225 | 0, // wIndex | |
1226 | NULL, // TransferBuffer | |
1227 | 0); // TransferBufferLength | |
1228 | ||
1229 | dbg ( "%s - HARDWARE RESET return %d", __FUNCTION__, status); | |
1230 | ||
1231 | /* return an error on purpose. */ | |
1232 | kfree (firmware_version); | |
1233 | kfree (rom_desc); | |
1234 | kfree (ti_manuf_desc); | |
1235 | return -ENODEV; | |
1236 | } | |
1237 | kfree (firmware_version); | |
1238 | } | |
1239 | // Search for type 0xF2 record (firmware blank record) | |
1240 | else if ((start_address = TIGetDescriptorAddress (serial, I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc)) != 0) { | |
1241 | #define HEADER_SIZE (sizeof(struct ti_i2c_desc) + sizeof(struct ti_i2c_firmware_rec)) | |
1242 | __u8 *header; | |
1243 | __u8 *vheader; | |
1244 | ||
1245 | header = kmalloc (HEADER_SIZE, GFP_KERNEL); | |
1246 | if (!header) { | |
1247 | dev_err (dev, "%s - out of memory.\n", __FUNCTION__); | |
1248 | kfree (rom_desc); | |
1249 | kfree (ti_manuf_desc); | |
1250 | return -ENOMEM; | |
1251 | } | |
1252 | ||
1253 | vheader = kmalloc (HEADER_SIZE, GFP_KERNEL); | |
1254 | if (!vheader) { | |
1255 | dev_err (dev, "%s - out of memory.\n", __FUNCTION__); | |
1256 | kfree (header); | |
1257 | kfree (rom_desc); | |
1258 | kfree (ti_manuf_desc); | |
1259 | return -ENOMEM; | |
1260 | } | |
1261 | ||
1262 | dbg ("%s - Found Type BLANK FIRMWARE (Type F2) record", __FUNCTION__); | |
1263 | ||
1264 | // In order to update the I2C firmware we must change the type 2 record to type 0xF2. | |
1265 | // This will force the UMP to come up in Boot Mode. Then while in boot mode, the driver | |
1266 | // will download the latest firmware (padded to 15.5k) into the UMP ram. | |
1267 | // And finally when the device comes back up in download mode the driver will cause | |
1268 | // the new firmware to be copied from the UMP Ram to I2C and the firmware will update | |
1269 | // the record type from 0xf2 to 0x02. | |
1270 | status = BuildI2CFirmwareHeader(header, dev); | |
1271 | if (status) { | |
1272 | kfree (vheader); | |
1273 | kfree (header); | |
1274 | kfree (rom_desc); | |
1275 | kfree (ti_manuf_desc); | |
1276 | return status; | |
1277 | } | |
1278 | ||
1279 | // Update I2C with type 0xf2 record with correct size and checksum | |
1280 | status = TIWriteRom (serial, | |
1281 | start_address, | |
1282 | HEADER_SIZE, | |
1283 | header); | |
1284 | if (status) { | |
1285 | kfree (vheader); | |
1286 | kfree (header); | |
1287 | kfree (rom_desc); | |
1288 | kfree (ti_manuf_desc); | |
1289 | return status; | |
1290 | } | |
1291 | ||
1292 | // verify the write -- must do this in order for write to | |
1293 | // complete before we do the hardware reset | |
1294 | status = TIReadRom (serial, | |
1295 | start_address, | |
1296 | HEADER_SIZE, | |
1297 | vheader); | |
1298 | ||
1299 | if (status) { | |
1300 | dbg ("%s - can't read header back", __FUNCTION__); | |
1301 | kfree (vheader); | |
1302 | kfree (header); | |
1303 | kfree (rom_desc); | |
1304 | kfree (ti_manuf_desc); | |
1305 | return status; | |
1306 | } | |
1307 | if (memcmp(vheader, header, HEADER_SIZE)) { | |
1308 | dbg ("%s - write download record failed", __FUNCTION__); | |
1309 | kfree (vheader); | |
1310 | kfree (header); | |
1311 | kfree (rom_desc); | |
1312 | kfree (ti_manuf_desc); | |
1313 | return status; | |
1314 | } | |
1315 | ||
1316 | kfree (vheader); | |
1317 | kfree (header); | |
1318 | ||
1319 | dbg ("%s - Start firmware update", __FUNCTION__); | |
1320 | ||
1321 | // Tell firmware to copy download image into I2C | |
1322 | status = TISendVendorRequestSync (serial->serial->dev, | |
1323 | UMPC_COPY_DNLD_TO_I2C, // Request | |
1324 | 0, // wValue | |
1325 | 0, // wIndex | |
1326 | NULL, // TransferBuffer | |
1327 | 0); // TransferBufferLength | |
1328 | ||
1329 | dbg ("%s - Update complete 0x%x", __FUNCTION__, status); | |
1330 | if (status) { | |
1331 | dev_err (dev, "%s - UMPC_COPY_DNLD_TO_I2C failed\n", __FUNCTION__); | |
1332 | kfree (rom_desc); | |
1333 | kfree (ti_manuf_desc); | |
1334 | return status; | |
1335 | } | |
1336 | } | |
1337 | ||
1338 | // The device is running the download code | |
1339 | kfree (rom_desc); | |
1340 | kfree (ti_manuf_desc); | |
1341 | return 0; | |
1342 | } | |
1343 | ||
1344 | /********************************************************************/ | |
1345 | /* Boot Mode */ | |
1346 | /********************************************************************/ | |
9544e833 | 1347 | dbg("%s - RUNNING IN BOOT MODE", __func__); |
1da177e4 LT |
1348 | |
1349 | // Configure the TI device so we can use the BULK pipes for download | |
1350 | status = TIConfigureBootDevice (serial->serial->dev); | |
1351 | if (status) | |
1352 | return status; | |
1353 | ||
1354 | if (le16_to_cpu(serial->serial->dev->descriptor.idVendor) != USB_VENDOR_ID_ION) { | |
1355 | dbg ("%s - VID = 0x%x", __FUNCTION__, | |
1356 | le16_to_cpu(serial->serial->dev->descriptor.idVendor)); | |
1357 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; | |
1358 | goto StayInBootMode; | |
1359 | } | |
1360 | ||
1361 | // We have an ION device (I2c Must be programmed) | |
1362 | // Determine I2C image type | |
1363 | if (TIGetI2cTypeInBootMode(serial)) { | |
1364 | goto StayInBootMode; | |
1365 | } | |
1366 | ||
1367 | // Registry variable set? | |
1368 | if (TIStayInBootMode) { | |
1369 | dbg ("%s - TIStayInBootMode", __FUNCTION__); | |
1370 | goto StayInBootMode; | |
1371 | } | |
1372 | ||
1373 | // Check for ION Vendor ID and that the I2C is valid | |
1374 | if (!TiValidateI2cImage(serial)) { | |
1375 | struct ti_i2c_image_header *header; | |
1376 | int i; | |
1377 | __u8 cs = 0; | |
1378 | __u8 *buffer; | |
1379 | int buffer_size; | |
1380 | ||
1381 | /* Validate Hardware version number | |
1382 | * Read Manufacturing Descriptor from TI Based Edgeport | |
1383 | */ | |
1384 | ti_manuf_desc = kmalloc (sizeof (*ti_manuf_desc), GFP_KERNEL); | |
1385 | if (!ti_manuf_desc) { | |
1386 | dev_err (dev, "%s - out of memory.\n", __FUNCTION__); | |
1387 | return -ENOMEM; | |
1388 | } | |
1389 | status = TIReadManufDescriptor (serial, (__u8 *)ti_manuf_desc); | |
1390 | if (status) { | |
1391 | kfree (ti_manuf_desc); | |
1392 | goto StayInBootMode; | |
1393 | } | |
1394 | ||
1395 | // Check for version 2 | |
1396 | if (!ignore_cpu_rev && TI_GET_CPU_REVISION(ti_manuf_desc->CpuRev_BoardRev) < 2) { | |
1397 | dbg ("%s - Wrong CPU Rev %d (Must be 2)", __FUNCTION__, | |
1398 | TI_GET_CPU_REVISION(ti_manuf_desc->CpuRev_BoardRev)); | |
1399 | kfree (ti_manuf_desc); | |
1400 | goto StayInBootMode; | |
1401 | } | |
1402 | ||
1403 | kfree (ti_manuf_desc); | |
1404 | ||
1405 | // In order to update the I2C firmware we must change the type 2 record to type 0xF2. | |
1406 | // This will force the UMP to come up in Boot Mode. Then while in boot mode, the driver | |
1407 | // will download the latest firmware (padded to 15.5k) into the UMP ram. | |
1408 | // And finally when the device comes back up in download mode the driver will cause | |
1409 | // the new firmware to be copied from the UMP Ram to I2C and the firmware will update | |
1410 | // the record type from 0xf2 to 0x02. | |
1411 | ||
1412 | /* | |
1413 | * Do we really have to copy the whole firmware image, | |
1414 | * or could we do this in place! | |
1415 | */ | |
1416 | ||
1417 | // Allocate a 15.5k buffer + 3 byte header | |
1418 | buffer_size = (((1024 * 16) - 512) + sizeof(struct ti_i2c_image_header)); | |
1419 | buffer = kmalloc (buffer_size, GFP_KERNEL); | |
1420 | if (!buffer) { | |
1421 | dev_err (dev, "%s - out of memory\n", __FUNCTION__); | |
1422 | return -ENOMEM; | |
1423 | } | |
1424 | ||
1425 | // Initialize the buffer to 0xff (pad the buffer) | |
1426 | memset (buffer, 0xff, buffer_size); | |
1427 | ||
1428 | memcpy (buffer, &PagableOperationalCodeImage[0], PagableOperationalCodeSize); | |
1429 | ||
1430 | for(i = sizeof(struct ti_i2c_image_header); i < buffer_size; i++) { | |
1431 | cs = (__u8)(cs + buffer[i]); | |
1432 | } | |
1433 | ||
1434 | header = (struct ti_i2c_image_header *)buffer; | |
1435 | ||
1436 | // update length and checksum after padding | |
1437 | header->Length = cpu_to_le16((__u16)(buffer_size - sizeof(struct ti_i2c_image_header))); | |
1438 | header->CheckSum = cs; | |
1439 | ||
1440 | // Download the operational code | |
1441 | dbg ("%s - Downloading operational code image (TI UMP)", __FUNCTION__); | |
1442 | status = TIDownloadCodeImage (serial, buffer, buffer_size); | |
1443 | ||
1444 | kfree (buffer); | |
1445 | ||
1446 | if (status) { | |
1447 | dbg ("%s - Error downloading operational code image", __FUNCTION__); | |
1448 | return status; | |
1449 | } | |
1450 | ||
1451 | // Device will reboot | |
1452 | serial->product_info.TiMode = TI_MODE_TRANSITIONING; | |
1453 | ||
1454 | dbg ("%s - Download successful -- Device rebooting...", __FUNCTION__); | |
1455 | ||
1456 | /* return an error on purpose */ | |
1457 | return -ENODEV; | |
1458 | } | |
1459 | ||
1460 | StayInBootMode: | |
1461 | // Eprom is invalid or blank stay in boot mode | |
9544e833 | 1462 | dbg("%s - STAYING IN BOOT MODE", __func__); |
1da177e4 LT |
1463 | serial->product_info.TiMode = TI_MODE_BOOT; |
1464 | ||
1465 | return 0; | |
1466 | } | |
1467 | ||
1468 | ||
1469 | static int TISetDtr (struct edgeport_port *port) | |
1470 | { | |
1471 | int port_number = port->port->number - port->port->serial->minor; | |
1472 | ||
1473 | dbg ("%s", __FUNCTION__); | |
1474 | port->shadow_mcr |= MCR_DTR; | |
1475 | ||
1476 | return TIWriteCommandSync (port->port->serial->dev, | |
1477 | UMPC_SET_CLR_DTR, | |
1478 | (__u8)(UMPM_UART1_PORT + port_number), | |
1479 | 1, /* set */ | |
1480 | NULL, | |
1481 | 0); | |
1482 | } | |
1483 | ||
1484 | static int TIClearDtr (struct edgeport_port *port) | |
1485 | { | |
1486 | int port_number = port->port->number - port->port->serial->minor; | |
1487 | ||
1488 | dbg ("%s", __FUNCTION__); | |
1489 | port->shadow_mcr &= ~MCR_DTR; | |
1490 | ||
1491 | return TIWriteCommandSync (port->port->serial->dev, | |
1492 | UMPC_SET_CLR_DTR, | |
1493 | (__u8)(UMPM_UART1_PORT + port_number), | |
1494 | 0, /* clear */ | |
1495 | NULL, | |
1496 | 0); | |
1497 | } | |
1498 | ||
1499 | static int TISetRts (struct edgeport_port *port) | |
1500 | { | |
1501 | int port_number = port->port->number - port->port->serial->minor; | |
1502 | ||
1503 | dbg ("%s", __FUNCTION__); | |
1504 | port->shadow_mcr |= MCR_RTS; | |
1505 | ||
1506 | return TIWriteCommandSync (port->port->serial->dev, | |
1507 | UMPC_SET_CLR_RTS, | |
1508 | (__u8)(UMPM_UART1_PORT + port_number), | |
1509 | 1, /* set */ | |
1510 | NULL, | |
1511 | 0); | |
1512 | } | |
1513 | ||
1514 | static int TIClearRts (struct edgeport_port *port) | |
1515 | { | |
1516 | int port_number = port->port->number - port->port->serial->minor; | |
1517 | ||
1518 | dbg ("%s", __FUNCTION__); | |
1519 | port->shadow_mcr &= ~MCR_RTS; | |
1520 | ||
1521 | return TIWriteCommandSync (port->port->serial->dev, | |
1522 | UMPC_SET_CLR_RTS, | |
1523 | (__u8)(UMPM_UART1_PORT + port_number), | |
1524 | 0, /* clear */ | |
1525 | NULL, | |
1526 | 0); | |
1527 | } | |
1528 | ||
1529 | static int TISetLoopBack (struct edgeport_port *port) | |
1530 | { | |
1531 | int port_number = port->port->number - port->port->serial->minor; | |
1532 | ||
1533 | dbg ("%s", __FUNCTION__); | |
1534 | ||
1535 | return TIWriteCommandSync (port->port->serial->dev, | |
1536 | UMPC_SET_CLR_LOOPBACK, | |
1537 | (__u8)(UMPM_UART1_PORT + port_number), | |
1538 | 1, /* set */ | |
1539 | NULL, | |
1540 | 0); | |
1541 | } | |
1542 | ||
1543 | static int TIClearLoopBack (struct edgeport_port *port) | |
1544 | { | |
1545 | int port_number = port->port->number - port->port->serial->minor; | |
1546 | ||
1547 | dbg ("%s", __FUNCTION__); | |
1548 | ||
1549 | return TIWriteCommandSync (port->port->serial->dev, | |
1550 | UMPC_SET_CLR_LOOPBACK, | |
1551 | (__u8)(UMPM_UART1_PORT + port_number), | |
1552 | 0, /* clear */ | |
1553 | NULL, | |
1554 | 0); | |
1555 | } | |
1556 | ||
1557 | static int TISetBreak (struct edgeport_port *port) | |
1558 | { | |
1559 | int port_number = port->port->number - port->port->serial->minor; | |
1560 | ||
1561 | dbg ("%s", __FUNCTION__); | |
1562 | ||
1563 | return TIWriteCommandSync (port->port->serial->dev, | |
1564 | UMPC_SET_CLR_BREAK, | |
1565 | (__u8)(UMPM_UART1_PORT + port_number), | |
1566 | 1, /* set */ | |
1567 | NULL, | |
1568 | 0); | |
1569 | } | |
1570 | ||
1571 | static int TIClearBreak (struct edgeport_port *port) | |
1572 | { | |
1573 | int port_number = port->port->number - port->port->serial->minor; | |
1574 | ||
1575 | dbg ("%s", __FUNCTION__); | |
1576 | ||
1577 | return TIWriteCommandSync (port->port->serial->dev, | |
1578 | UMPC_SET_CLR_BREAK, | |
1579 | (__u8)(UMPM_UART1_PORT + port_number), | |
1580 | 0, /* clear */ | |
1581 | NULL, | |
1582 | 0); | |
1583 | } | |
1584 | ||
1585 | static int TIRestoreMCR (struct edgeport_port *port, __u8 mcr) | |
1586 | { | |
1587 | int status = 0; | |
1588 | ||
1589 | dbg ("%s - %x", __FUNCTION__, mcr); | |
1590 | ||
1591 | if (mcr & MCR_DTR) | |
1592 | status = TISetDtr (port); | |
1593 | else | |
1594 | status = TIClearDtr (port); | |
1595 | ||
1596 | if (status) | |
1597 | return status; | |
1598 | ||
1599 | if (mcr & MCR_RTS) | |
1600 | status = TISetRts (port); | |
1601 | else | |
1602 | status = TIClearRts (port); | |
1603 | ||
1604 | if (status) | |
1605 | return status; | |
1606 | ||
1607 | if (mcr & MCR_LOOPBACK) | |
1608 | status = TISetLoopBack (port); | |
1609 | else | |
1610 | status = TIClearLoopBack (port); | |
1611 | ||
1612 | return status; | |
1613 | } | |
1614 | ||
1615 | ||
1616 | ||
1617 | /* Convert TI LSR to standard UART flags */ | |
1618 | static __u8 MapLineStatus (__u8 ti_lsr) | |
1619 | { | |
1620 | __u8 lsr = 0; | |
1621 | ||
1622 | #define MAP_FLAG(flagUmp, flagUart) \ | |
1623 | if (ti_lsr & flagUmp) \ | |
1624 | lsr |= flagUart; | |
1625 | ||
1626 | MAP_FLAG(UMP_UART_LSR_OV_MASK, LSR_OVER_ERR) /* overrun */ | |
1627 | MAP_FLAG(UMP_UART_LSR_PE_MASK, LSR_PAR_ERR) /* parity error */ | |
1628 | MAP_FLAG(UMP_UART_LSR_FE_MASK, LSR_FRM_ERR) /* framing error */ | |
1629 | MAP_FLAG(UMP_UART_LSR_BR_MASK, LSR_BREAK) /* break detected */ | |
1630 | MAP_FLAG(UMP_UART_LSR_RX_MASK, LSR_RX_AVAIL) /* receive data available */ | |
1631 | MAP_FLAG(UMP_UART_LSR_TX_MASK, LSR_TX_EMPTY) /* transmit holding register empty */ | |
1632 | ||
1633 | #undef MAP_FLAG | |
1634 | ||
1635 | return lsr; | |
1636 | } | |
1637 | ||
1638 | static void handle_new_msr (struct edgeport_port *edge_port, __u8 msr) | |
1639 | { | |
1640 | struct async_icount *icount; | |
1641 | struct tty_struct *tty; | |
1642 | ||
1643 | dbg ("%s - %02x", __FUNCTION__, msr); | |
1644 | ||
1645 | if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { | |
1646 | icount = &edge_port->icount; | |
1647 | ||
1648 | /* update input line counters */ | |
1649 | if (msr & EDGEPORT_MSR_DELTA_CTS) | |
1650 | icount->cts++; | |
1651 | if (msr & EDGEPORT_MSR_DELTA_DSR) | |
1652 | icount->dsr++; | |
1653 | if (msr & EDGEPORT_MSR_DELTA_CD) | |
1654 | icount->dcd++; | |
1655 | if (msr & EDGEPORT_MSR_DELTA_RI) | |
1656 | icount->rng++; | |
1657 | wake_up_interruptible (&edge_port->delta_msr_wait); | |
1658 | } | |
1659 | ||
1660 | /* Save the new modem status */ | |
1661 | edge_port->shadow_msr = msr & 0xf0; | |
1662 | ||
1663 | tty = edge_port->port->tty; | |
1664 | /* handle CTS flow control */ | |
1665 | if (tty && C_CRTSCTS(tty)) { | |
1666 | if (msr & EDGEPORT_MSR_CTS) { | |
1667 | tty->hw_stopped = 0; | |
1668 | tty_wakeup(tty); | |
1669 | } else { | |
1670 | tty->hw_stopped = 1; | |
1671 | } | |
1672 | } | |
1673 | ||
1674 | return; | |
1675 | } | |
1676 | ||
1677 | static void handle_new_lsr (struct edgeport_port *edge_port, int lsr_data, __u8 lsr, __u8 data) | |
1678 | { | |
1679 | struct async_icount *icount; | |
1680 | __u8 new_lsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR | LSR_FRM_ERR | LSR_BREAK)); | |
1681 | ||
1682 | dbg ("%s - %02x", __FUNCTION__, new_lsr); | |
1683 | ||
1684 | edge_port->shadow_lsr = lsr; | |
1685 | ||
1686 | if (new_lsr & LSR_BREAK) { | |
1687 | /* | |
1688 | * Parity and Framing errors only count if they | |
1689 | * occur exclusive of a break being received. | |
1690 | */ | |
1691 | new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK); | |
1692 | } | |
1693 | ||
1694 | /* Place LSR data byte into Rx buffer */ | |
1695 | if (lsr_data && edge_port->port->tty) | |
1696 | edge_tty_recv(&edge_port->port->dev, edge_port->port->tty, &data, 1); | |
1697 | ||
1698 | /* update input line counters */ | |
1699 | icount = &edge_port->icount; | |
1700 | if (new_lsr & LSR_BREAK) | |
1701 | icount->brk++; | |
1702 | if (new_lsr & LSR_OVER_ERR) | |
1703 | icount->overrun++; | |
1704 | if (new_lsr & LSR_PAR_ERR) | |
1705 | icount->parity++; | |
1706 | if (new_lsr & LSR_FRM_ERR) | |
1707 | icount->frame++; | |
1708 | } | |
1709 | ||
1710 | ||
7d12e780 | 1711 | static void edge_interrupt_callback (struct urb *urb) |
1da177e4 LT |
1712 | { |
1713 | struct edgeport_serial *edge_serial = (struct edgeport_serial *)urb->context; | |
1714 | struct usb_serial_port *port; | |
1715 | struct edgeport_port *edge_port; | |
1716 | unsigned char *data = urb->transfer_buffer; | |
1717 | int length = urb->actual_length; | |
1718 | int port_number; | |
1719 | int function; | |
ee337c21 | 1720 | int retval; |
1da177e4 LT |
1721 | __u8 lsr; |
1722 | __u8 msr; | |
ee337c21 | 1723 | int status = urb->status; |
1da177e4 LT |
1724 | |
1725 | dbg("%s", __FUNCTION__); | |
1726 | ||
ee337c21 | 1727 | switch (status) { |
1da177e4 LT |
1728 | case 0: |
1729 | /* success */ | |
1730 | break; | |
1731 | case -ECONNRESET: | |
1732 | case -ENOENT: | |
1733 | case -ESHUTDOWN: | |
1734 | /* this urb is terminated, clean up */ | |
ee337c21 GKH |
1735 | dbg("%s - urb shutting down with status: %d", |
1736 | __FUNCTION__, status); | |
1da177e4 LT |
1737 | return; |
1738 | default: | |
ee337c21 GKH |
1739 | dev_err(&urb->dev->dev, "%s - nonzero urb status received: " |
1740 | "%d\n", __FUNCTION__, status); | |
1da177e4 LT |
1741 | goto exit; |
1742 | } | |
1743 | ||
1744 | if (!length) { | |
1745 | dbg ("%s - no data in urb", __FUNCTION__); | |
1746 | goto exit; | |
1747 | } | |
1748 | ||
1749 | usb_serial_debug_data(debug, &edge_serial->serial->dev->dev, __FUNCTION__, length, data); | |
1750 | ||
1751 | if (length != 2) { | |
1752 | dbg ("%s - expecting packet of size 2, got %d", __FUNCTION__, length); | |
1753 | goto exit; | |
1754 | } | |
1755 | ||
1756 | port_number = TIUMP_GET_PORT_FROM_CODE (data[0]); | |
1757 | function = TIUMP_GET_FUNC_FROM_CODE (data[0]); | |
1758 | dbg ("%s - port_number %d, function %d, info 0x%x", | |
1759 | __FUNCTION__, port_number, function, data[1]); | |
1760 | port = edge_serial->serial->port[port_number]; | |
1761 | edge_port = usb_get_serial_port_data(port); | |
1762 | if (!edge_port) { | |
1763 | dbg ("%s - edge_port not found", __FUNCTION__); | |
1764 | return; | |
1765 | } | |
1766 | switch (function) { | |
1767 | case TIUMP_INTERRUPT_CODE_LSR: | |
1768 | lsr = MapLineStatus(data[1]); | |
1769 | if (lsr & UMP_UART_LSR_DATA_MASK) { | |
1770 | /* Save the LSR event for bulk read completion routine */ | |
1771 | dbg ("%s - LSR Event Port %u LSR Status = %02x", | |
1772 | __FUNCTION__, port_number, lsr); | |
1773 | edge_port->lsr_event = 1; | |
1774 | edge_port->lsr_mask = lsr; | |
1775 | } else { | |
1776 | dbg ("%s - ===== Port %d LSR Status = %02x ======", | |
1777 | __FUNCTION__, port_number, lsr); | |
1778 | handle_new_lsr (edge_port, 0, lsr, 0); | |
1779 | } | |
1780 | break; | |
1781 | ||
1782 | case TIUMP_INTERRUPT_CODE_MSR: // MSR | |
1783 | /* Copy MSR from UMP */ | |
1784 | msr = data[1]; | |
1785 | dbg ("%s - ===== Port %u MSR Status = %02x ======\n", | |
1786 | __FUNCTION__, port_number, msr); | |
1787 | handle_new_msr (edge_port, msr); | |
1788 | break; | |
1789 | ||
1790 | default: | |
1791 | dev_err (&urb->dev->dev, "%s - Unknown Interrupt code from UMP %x\n", | |
1792 | __FUNCTION__, data[1]); | |
1793 | break; | |
1794 | ||
1795 | } | |
1796 | ||
1797 | exit: | |
ee337c21 GKH |
1798 | retval = usb_submit_urb (urb, GFP_ATOMIC); |
1799 | if (retval) | |
1da177e4 | 1800 | dev_err (&urb->dev->dev, "%s - usb_submit_urb failed with result %d\n", |
ee337c21 | 1801 | __FUNCTION__, retval); |
1da177e4 LT |
1802 | } |
1803 | ||
7d12e780 | 1804 | static void edge_bulk_in_callback (struct urb *urb) |
1da177e4 LT |
1805 | { |
1806 | struct edgeport_port *edge_port = (struct edgeport_port *)urb->context; | |
1807 | unsigned char *data = urb->transfer_buffer; | |
1808 | struct tty_struct *tty; | |
ee337c21 | 1809 | int retval = 0; |
1da177e4 | 1810 | int port_number; |
ee337c21 | 1811 | int status = urb->status; |
1da177e4 LT |
1812 | |
1813 | dbg("%s", __FUNCTION__); | |
1814 | ||
ee337c21 | 1815 | switch (status) { |
1da177e4 LT |
1816 | case 0: |
1817 | /* success */ | |
1818 | break; | |
1819 | case -ECONNRESET: | |
1820 | case -ENOENT: | |
1821 | case -ESHUTDOWN: | |
1822 | /* this urb is terminated, clean up */ | |
ee337c21 GKH |
1823 | dbg("%s - urb shutting down with status: %d", |
1824 | __FUNCTION__, status); | |
1da177e4 LT |
1825 | return; |
1826 | default: | |
1827 | dev_err (&urb->dev->dev,"%s - nonzero read bulk status received: %d\n", | |
ee337c21 | 1828 | __FUNCTION__, status); |
1da177e4 LT |
1829 | } |
1830 | ||
ee337c21 | 1831 | if (status == -EPIPE) |
1da177e4 LT |
1832 | goto exit; |
1833 | ||
ee337c21 | 1834 | if (status) { |
1da177e4 LT |
1835 | dev_err(&urb->dev->dev,"%s - stopping read!\n", __FUNCTION__); |
1836 | return; | |
1837 | } | |
1838 | ||
1839 | port_number = edge_port->port->number - edge_port->port->serial->minor; | |
1840 | ||
1841 | if (edge_port->lsr_event) { | |
1842 | edge_port->lsr_event = 0; | |
1843 | dbg ("%s ===== Port %u LSR Status = %02x, Data = %02x ======", | |
1844 | __FUNCTION__, port_number, edge_port->lsr_mask, *data); | |
1845 | handle_new_lsr (edge_port, 1, edge_port->lsr_mask, *data); | |
1846 | /* Adjust buffer length/pointer */ | |
1847 | --urb->actual_length; | |
1848 | ++data; | |
1849 | } | |
1850 | ||
1851 | tty = edge_port->port->tty; | |
1852 | if (tty && urb->actual_length) { | |
1853 | usb_serial_debug_data(debug, &edge_port->port->dev, __FUNCTION__, urb->actual_length, data); | |
1854 | ||
1855 | if (edge_port->close_pending) { | |
1856 | dbg ("%s - close is pending, dropping data on the floor.", __FUNCTION__); | |
1857 | } else { | |
1858 | edge_tty_recv(&edge_port->port->dev, tty, data, urb->actual_length); | |
1859 | } | |
1860 | edge_port->icount.rx += urb->actual_length; | |
1861 | } | |
1862 | ||
1863 | exit: | |
1864 | /* continue read unless stopped */ | |
1865 | spin_lock(&edge_port->ep_lock); | |
1866 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) { | |
1867 | urb->dev = edge_port->port->serial->dev; | |
ee337c21 | 1868 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
1869 | } else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) { |
1870 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED; | |
1871 | } | |
1872 | spin_unlock(&edge_port->ep_lock); | |
ee337c21 | 1873 | if (retval) |
1da177e4 | 1874 | dev_err (&urb->dev->dev, "%s - usb_submit_urb failed with result %d\n", |
ee337c21 | 1875 | __FUNCTION__, retval); |
1da177e4 LT |
1876 | } |
1877 | ||
1878 | static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned char *data, int length) | |
1879 | { | |
1880 | int cnt; | |
1881 | ||
1882 | do { | |
33f0f88f AC |
1883 | cnt = tty_buffer_request_room(tty, length); |
1884 | if (cnt < length) { | |
1885 | dev_err(dev, "%s - dropping data, %d bytes lost\n", | |
1886 | __FUNCTION__, length - cnt); | |
1887 | if(cnt == 0) | |
1888 | break; | |
1da177e4 | 1889 | } |
33f0f88f | 1890 | tty_insert_flip_string(tty, data, cnt); |
1da177e4 LT |
1891 | data += cnt; |
1892 | length -= cnt; | |
1893 | } while (length > 0); | |
1894 | ||
1895 | tty_flip_buffer_push(tty); | |
1896 | } | |
1897 | ||
7d12e780 | 1898 | static void edge_bulk_out_callback (struct urb *urb) |
1da177e4 LT |
1899 | { |
1900 | struct usb_serial_port *port = (struct usb_serial_port *)urb->context; | |
1901 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
ee337c21 | 1902 | int status = urb->status; |
1da177e4 LT |
1903 | |
1904 | dbg ("%s - port %d", __FUNCTION__, port->number); | |
1905 | ||
1906 | edge_port->ep_write_urb_in_use = 0; | |
1907 | ||
ee337c21 | 1908 | switch (status) { |
1da177e4 LT |
1909 | case 0: |
1910 | /* success */ | |
1911 | break; | |
1912 | case -ECONNRESET: | |
1913 | case -ENOENT: | |
1914 | case -ESHUTDOWN: | |
1915 | /* this urb is terminated, clean up */ | |
ee337c21 GKH |
1916 | dbg("%s - urb shutting down with status: %d", |
1917 | __FUNCTION__, status); | |
1da177e4 LT |
1918 | return; |
1919 | default: | |
ee337c21 GKH |
1920 | dev_err(&urb->dev->dev, "%s - nonzero write bulk status " |
1921 | "received: %d\n", __FUNCTION__, status); | |
1da177e4 LT |
1922 | } |
1923 | ||
1924 | /* send any buffered data */ | |
1925 | edge_send(port); | |
1926 | } | |
1927 | ||
1928 | static int edge_open (struct usb_serial_port *port, struct file * filp) | |
1929 | { | |
1930 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
1931 | struct edgeport_serial *edge_serial; | |
1932 | struct usb_device *dev; | |
1933 | struct urb *urb; | |
1934 | int port_number; | |
1935 | int status; | |
1936 | u16 open_settings; | |
1937 | u8 transaction_timeout; | |
1938 | ||
1939 | dbg("%s - port %d", __FUNCTION__, port->number); | |
1940 | ||
1941 | if (edge_port == NULL) | |
1942 | return -ENODEV; | |
1943 | ||
1944 | if (port->tty) | |
1945 | port->tty->low_latency = low_latency; | |
1946 | ||
1947 | port_number = port->number - port->serial->minor; | |
1948 | switch (port_number) { | |
1949 | case 0: | |
1950 | edge_port->uart_base = UMPMEM_BASE_UART1; | |
1951 | edge_port->dma_address = UMPD_OEDB1_ADDRESS; | |
1952 | break; | |
1953 | case 1: | |
1954 | edge_port->uart_base = UMPMEM_BASE_UART2; | |
1955 | edge_port->dma_address = UMPD_OEDB2_ADDRESS; | |
1956 | break; | |
1957 | default: | |
1958 | dev_err (&port->dev, "Unknown port number!!!\n"); | |
1959 | return -ENODEV; | |
1960 | } | |
1961 | ||
1962 | dbg ("%s - port_number = %d, uart_base = %04x, dma_address = %04x", | |
1963 | __FUNCTION__, port_number, edge_port->uart_base, edge_port->dma_address); | |
1964 | ||
1965 | dev = port->serial->dev; | |
1966 | ||
1967 | memset (&(edge_port->icount), 0x00, sizeof(edge_port->icount)); | |
1968 | init_waitqueue_head (&edge_port->delta_msr_wait); | |
1969 | ||
1970 | /* turn off loopback */ | |
1971 | status = TIClearLoopBack (edge_port); | |
1972 | if (status) { | |
1973 | dev_err(&port->dev,"%s - cannot send clear loopback command, %d\n", | |
1974 | __FUNCTION__, status); | |
1975 | return status; | |
1976 | } | |
1977 | ||
1978 | /* set up the port settings */ | |
d5f5bcd4 | 1979 | edge_set_termios (port, port->tty->termios); |
1da177e4 LT |
1980 | |
1981 | /* open up the port */ | |
1982 | ||
1983 | /* milliseconds to timeout for DMA transfer */ | |
1984 | transaction_timeout = 2; | |
1985 | ||
1986 | edge_port->ump_read_timeout = max (20, ((transaction_timeout * 3) / 2) ); | |
1987 | ||
1988 | // milliseconds to timeout for DMA transfer | |
1989 | open_settings = (u8)(UMP_DMA_MODE_CONTINOUS | | |
1990 | UMP_PIPE_TRANS_TIMEOUT_ENA | | |
1991 | (transaction_timeout << 2)); | |
1992 | ||
1993 | dbg ("%s - Sending UMPC_OPEN_PORT", __FUNCTION__); | |
1994 | ||
1995 | /* Tell TI to open and start the port */ | |
1996 | status = TIWriteCommandSync (dev, | |
1997 | UMPC_OPEN_PORT, | |
1998 | (u8)(UMPM_UART1_PORT + port_number), | |
1999 | open_settings, | |
2000 | NULL, | |
2001 | 0); | |
2002 | if (status) { | |
2003 | dev_err(&port->dev,"%s - cannot send open command, %d\n", __FUNCTION__, status); | |
2004 | return status; | |
2005 | } | |
2006 | ||
2007 | /* Start the DMA? */ | |
2008 | status = TIWriteCommandSync (dev, | |
2009 | UMPC_START_PORT, | |
2010 | (u8)(UMPM_UART1_PORT + port_number), | |
2011 | 0, | |
2012 | NULL, | |
2013 | 0); | |
2014 | if (status) { | |
2015 | dev_err(&port->dev,"%s - cannot send start DMA command, %d\n", __FUNCTION__, status); | |
2016 | return status; | |
2017 | } | |
2018 | ||
2019 | /* Clear TX and RX buffers in UMP */ | |
2020 | status = TIPurgeDataSync (port, UMP_PORT_DIR_OUT | UMP_PORT_DIR_IN); | |
2021 | if (status) { | |
2022 | dev_err(&port->dev,"%s - cannot send clear buffers command, %d\n", __FUNCTION__, status); | |
2023 | return status; | |
2024 | } | |
2025 | ||
2026 | /* Read Initial MSR */ | |
2027 | status = TIReadVendorRequestSync (dev, | |
2028 | UMPC_READ_MSR, // Request | |
2029 | 0, // wValue | |
2030 | (__u16)(UMPM_UART1_PORT + port_number), // wIndex (Address) | |
2031 | &edge_port->shadow_msr, // TransferBuffer | |
2032 | 1); // TransferBufferLength | |
2033 | if (status) { | |
2034 | dev_err(&port->dev,"%s - cannot send read MSR command, %d\n", __FUNCTION__, status); | |
2035 | return status; | |
2036 | } | |
2037 | ||
2038 | dbg ("ShadowMSR 0x%X", edge_port->shadow_msr); | |
2039 | ||
2040 | /* Set Initial MCR */ | |
2041 | edge_port->shadow_mcr = MCR_RTS | MCR_DTR; | |
2042 | dbg ("ShadowMCR 0x%X", edge_port->shadow_mcr); | |
2043 | ||
2044 | edge_serial = edge_port->edge_serial; | |
241ca64f | 2045 | if (mutex_lock_interruptible(&edge_serial->es_lock)) |
1da177e4 LT |
2046 | return -ERESTARTSYS; |
2047 | if (edge_serial->num_ports_open == 0) { | |
2048 | /* we are the first port to be opened, let's post the interrupt urb */ | |
2049 | urb = edge_serial->serial->port[0]->interrupt_in_urb; | |
2050 | if (!urb) { | |
2051 | dev_err (&port->dev, "%s - no interrupt urb present, exiting\n", __FUNCTION__); | |
2052 | status = -EINVAL; | |
241ca64f | 2053 | goto release_es_lock; |
1da177e4 LT |
2054 | } |
2055 | urb->complete = edge_interrupt_callback; | |
2056 | urb->context = edge_serial; | |
2057 | urb->dev = dev; | |
2058 | status = usb_submit_urb (urb, GFP_KERNEL); | |
2059 | if (status) { | |
2060 | dev_err (&port->dev, "%s - usb_submit_urb failed with value %d\n", __FUNCTION__, status); | |
241ca64f | 2061 | goto release_es_lock; |
1da177e4 LT |
2062 | } |
2063 | } | |
2064 | ||
2065 | /* | |
2066 | * reset the data toggle on the bulk endpoints to work around bug in | |
2067 | * host controllers where things get out of sync some times | |
2068 | */ | |
2069 | usb_clear_halt (dev, port->write_urb->pipe); | |
2070 | usb_clear_halt (dev, port->read_urb->pipe); | |
2071 | ||
2072 | /* start up our bulk read urb */ | |
2073 | urb = port->read_urb; | |
2074 | if (!urb) { | |
2075 | dev_err (&port->dev, "%s - no read urb present, exiting\n", __FUNCTION__); | |
2076 | status = -EINVAL; | |
2077 | goto unlink_int_urb; | |
2078 | } | |
2079 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; | |
2080 | urb->complete = edge_bulk_in_callback; | |
2081 | urb->context = edge_port; | |
2082 | urb->dev = dev; | |
2083 | status = usb_submit_urb (urb, GFP_KERNEL); | |
2084 | if (status) { | |
2085 | dev_err (&port->dev, "%s - read bulk usb_submit_urb failed with value %d\n", __FUNCTION__, status); | |
2086 | goto unlink_int_urb; | |
2087 | } | |
2088 | ||
2089 | ++edge_serial->num_ports_open; | |
2090 | ||
2091 | dbg("%s - exited", __FUNCTION__); | |
2092 | ||
241ca64f | 2093 | goto release_es_lock; |
1da177e4 LT |
2094 | |
2095 | unlink_int_urb: | |
2096 | if (edge_port->edge_serial->num_ports_open == 0) | |
2097 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
241ca64f MK |
2098 | release_es_lock: |
2099 | mutex_unlock(&edge_serial->es_lock); | |
1da177e4 LT |
2100 | return status; |
2101 | } | |
2102 | ||
2103 | static void edge_close (struct usb_serial_port *port, struct file *filp) | |
2104 | { | |
2105 | struct edgeport_serial *edge_serial; | |
2106 | struct edgeport_port *edge_port; | |
2107 | int port_number; | |
2108 | int status; | |
2109 | ||
2110 | dbg("%s - port %d", __FUNCTION__, port->number); | |
2111 | ||
2112 | edge_serial = usb_get_serial_data(port->serial); | |
2113 | edge_port = usb_get_serial_port_data(port); | |
2114 | if ((edge_serial == NULL) || (edge_port == NULL)) | |
2115 | return; | |
2116 | ||
2117 | /* The bulkreadcompletion routine will check | |
2118 | * this flag and dump add read data */ | |
2119 | edge_port->close_pending = 1; | |
2120 | ||
2121 | /* chase the port close and flush */ | |
2122 | TIChasePort (edge_port, (HZ*closing_wait)/100, 1); | |
2123 | ||
2124 | usb_kill_urb(port->read_urb); | |
2125 | usb_kill_urb(port->write_urb); | |
2126 | edge_port->ep_write_urb_in_use = 0; | |
2127 | ||
2128 | /* assuming we can still talk to the device, | |
2129 | * send a close port command to it */ | |
2130 | dbg("%s - send umpc_close_port", __FUNCTION__); | |
2131 | port_number = port->number - port->serial->minor; | |
2132 | status = TIWriteCommandSync (port->serial->dev, | |
2133 | UMPC_CLOSE_PORT, | |
2134 | (__u8)(UMPM_UART1_PORT + port_number), | |
2135 | 0, | |
2136 | NULL, | |
2137 | 0); | |
241ca64f | 2138 | mutex_lock(&edge_serial->es_lock); |
1da177e4 LT |
2139 | --edge_port->edge_serial->num_ports_open; |
2140 | if (edge_port->edge_serial->num_ports_open <= 0) { | |
2141 | /* last port is now closed, let's shut down our interrupt urb */ | |
2142 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
2143 | edge_port->edge_serial->num_ports_open = 0; | |
2144 | } | |
241ca64f | 2145 | mutex_unlock(&edge_serial->es_lock); |
1da177e4 LT |
2146 | edge_port->close_pending = 0; |
2147 | ||
2148 | dbg("%s - exited", __FUNCTION__); | |
2149 | } | |
2150 | ||
2151 | static int edge_write (struct usb_serial_port *port, const unsigned char *data, int count) | |
2152 | { | |
2153 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2154 | unsigned long flags; | |
2155 | ||
2156 | dbg("%s - port %d", __FUNCTION__, port->number); | |
2157 | ||
2158 | if (count == 0) { | |
2159 | dbg("%s - write request of 0 bytes", __FUNCTION__); | |
2160 | return 0; | |
2161 | } | |
2162 | ||
2163 | if (edge_port == NULL) | |
2164 | return -ENODEV; | |
2165 | if (edge_port->close_pending == 1) | |
2166 | return -ENODEV; | |
2167 | ||
2168 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2169 | count = edge_buf_put(edge_port->ep_out_buf, data, count); | |
2170 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2171 | ||
2172 | edge_send(port); | |
2173 | ||
2174 | return count; | |
2175 | } | |
2176 | ||
2177 | static void edge_send(struct usb_serial_port *port) | |
2178 | { | |
2179 | int count, result; | |
2180 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2181 | struct tty_struct *tty = port->tty; | |
2182 | unsigned long flags; | |
2183 | ||
2184 | ||
2185 | dbg("%s - port %d", __FUNCTION__, port->number); | |
2186 | ||
2187 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2188 | ||
2189 | if (edge_port->ep_write_urb_in_use) { | |
2190 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2191 | return; | |
2192 | } | |
2193 | ||
2194 | count = edge_buf_get(edge_port->ep_out_buf, | |
2195 | port->write_urb->transfer_buffer, | |
2196 | port->bulk_out_size); | |
2197 | ||
2198 | if (count == 0) { | |
2199 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2200 | return; | |
2201 | } | |
2202 | ||
2203 | edge_port->ep_write_urb_in_use = 1; | |
2204 | ||
2205 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2206 | ||
2207 | usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, port->write_urb->transfer_buffer); | |
2208 | ||
2209 | /* set up our urb */ | |
2210 | usb_fill_bulk_urb (port->write_urb, port->serial->dev, | |
2211 | usb_sndbulkpipe (port->serial->dev, | |
2212 | port->bulk_out_endpointAddress), | |
2213 | port->write_urb->transfer_buffer, count, | |
2214 | edge_bulk_out_callback, | |
2215 | port); | |
2216 | ||
2217 | /* send the data out the bulk port */ | |
2218 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); | |
2219 | if (result) { | |
2220 | dev_err(&port->dev, "%s - failed submitting write urb, error %d\n", __FUNCTION__, result); | |
2221 | edge_port->ep_write_urb_in_use = 0; | |
2222 | // TODO: reschedule edge_send | |
2223 | } else { | |
2224 | edge_port->icount.tx += count; | |
2225 | } | |
2226 | ||
2227 | /* wakeup any process waiting for writes to complete */ | |
2228 | /* there is now more room in the buffer for new writes */ | |
2229 | if (tty) { | |
2230 | /* let the tty driver wakeup if it has a special write_wakeup function */ | |
2231 | tty_wakeup(tty); | |
2232 | } | |
2233 | } | |
2234 | ||
2235 | static int edge_write_room (struct usb_serial_port *port) | |
2236 | { | |
2237 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2238 | int room = 0; | |
2239 | unsigned long flags; | |
2240 | ||
2241 | dbg("%s - port %d", __FUNCTION__, port->number); | |
2242 | ||
2243 | if (edge_port == NULL) | |
2244 | return -ENODEV; | |
2245 | if (edge_port->close_pending == 1) | |
2246 | return -ENODEV; | |
2247 | ||
2248 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2249 | room = edge_buf_space_avail(edge_port->ep_out_buf); | |
2250 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2251 | ||
2252 | dbg("%s - returns %d", __FUNCTION__, room); | |
2253 | return room; | |
2254 | } | |
2255 | ||
2256 | static int edge_chars_in_buffer (struct usb_serial_port *port) | |
2257 | { | |
2258 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2259 | int chars = 0; | |
2260 | unsigned long flags; | |
2261 | ||
2262 | dbg("%s - port %d", __FUNCTION__, port->number); | |
2263 | ||
2264 | if (edge_port == NULL) | |
2265 | return -ENODEV; | |
2266 | if (edge_port->close_pending == 1) | |
2267 | return -ENODEV; | |
2268 | ||
2269 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2270 | chars = edge_buf_data_avail(edge_port->ep_out_buf); | |
2271 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2272 | ||
2273 | dbg ("%s - returns %d", __FUNCTION__, chars); | |
2274 | return chars; | |
2275 | } | |
2276 | ||
2277 | static void edge_throttle (struct usb_serial_port *port) | |
2278 | { | |
2279 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2280 | struct tty_struct *tty; | |
2281 | int status; | |
2282 | ||
2283 | dbg("%s - port %d", __FUNCTION__, port->number); | |
2284 | ||
2285 | if (edge_port == NULL) | |
2286 | return; | |
2287 | ||
2288 | tty = port->tty; | |
2289 | if (!tty) { | |
2290 | dbg ("%s - no tty available", __FUNCTION__); | |
2291 | return; | |
2292 | } | |
2293 | ||
2294 | /* if we are implementing XON/XOFF, send the stop character */ | |
2295 | if (I_IXOFF(tty)) { | |
2296 | unsigned char stop_char = STOP_CHAR(tty); | |
2297 | status = edge_write (port, &stop_char, 1); | |
2298 | if (status <= 0) { | |
2299 | dev_err(&port->dev, "%s - failed to write stop character, %d\n", __FUNCTION__, status); | |
2300 | } | |
2301 | } | |
2302 | ||
2303 | /* if we are implementing RTS/CTS, stop reads */ | |
2304 | /* and the Edgeport will clear the RTS line */ | |
2305 | if (C_CRTSCTS(tty)) | |
2306 | stop_read(edge_port); | |
2307 | ||
2308 | } | |
2309 | ||
2310 | static void edge_unthrottle (struct usb_serial_port *port) | |
2311 | { | |
2312 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2313 | struct tty_struct *tty; | |
2314 | int status; | |
2315 | ||
2316 | dbg("%s - port %d", __FUNCTION__, port->number); | |
2317 | ||
2318 | if (edge_port == NULL) | |
2319 | return; | |
2320 | ||
2321 | tty = port->tty; | |
2322 | if (!tty) { | |
2323 | dbg ("%s - no tty available", __FUNCTION__); | |
2324 | return; | |
2325 | } | |
2326 | ||
2327 | /* if we are implementing XON/XOFF, send the start character */ | |
2328 | if (I_IXOFF(tty)) { | |
2329 | unsigned char start_char = START_CHAR(tty); | |
2330 | status = edge_write (port, &start_char, 1); | |
2331 | if (status <= 0) { | |
2332 | dev_err(&port->dev, "%s - failed to write start character, %d\n", __FUNCTION__, status); | |
2333 | } | |
2334 | } | |
2335 | ||
2336 | /* if we are implementing RTS/CTS, restart reads */ | |
2337 | /* are the Edgeport will assert the RTS line */ | |
2338 | if (C_CRTSCTS(tty)) { | |
2339 | status = restart_read(edge_port); | |
2340 | if (status) | |
2341 | dev_err(&port->dev, "%s - read bulk usb_submit_urb failed with value %d\n", __FUNCTION__, status); | |
2342 | } | |
2343 | ||
2344 | } | |
2345 | ||
2346 | static void stop_read(struct edgeport_port *edge_port) | |
2347 | { | |
2348 | unsigned long flags; | |
2349 | ||
2350 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2351 | ||
2352 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) | |
2353 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING; | |
2354 | edge_port->shadow_mcr &= ~MCR_RTS; | |
2355 | ||
2356 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2357 | } | |
2358 | ||
2359 | static int restart_read(struct edgeport_port *edge_port) | |
2360 | { | |
2361 | struct urb *urb; | |
2362 | int status = 0; | |
2363 | unsigned long flags; | |
2364 | ||
2365 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2366 | ||
2367 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) { | |
2368 | urb = edge_port->port->read_urb; | |
2369 | urb->complete = edge_bulk_in_callback; | |
2370 | urb->context = edge_port; | |
2371 | urb->dev = edge_port->port->serial->dev; | |
efdff608 | 2372 | status = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
2373 | } |
2374 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; | |
2375 | edge_port->shadow_mcr |= MCR_RTS; | |
2376 | ||
2377 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2378 | ||
2379 | return status; | |
2380 | } | |
2381 | ||
606d099c | 2382 | static void change_port_settings (struct edgeport_port *edge_port, struct ktermios *old_termios) |
1da177e4 LT |
2383 | { |
2384 | struct ump_uart_config *config; | |
2385 | struct tty_struct *tty; | |
2386 | int baud; | |
2387 | unsigned cflag; | |
2388 | int status; | |
2389 | int port_number = edge_port->port->number - edge_port->port->serial->minor; | |
2390 | ||
2391 | dbg("%s - port %d", __FUNCTION__, edge_port->port->number); | |
2392 | ||
2393 | tty = edge_port->port->tty; | |
1da177e4 LT |
2394 | |
2395 | config = kmalloc (sizeof (*config), GFP_KERNEL); | |
2396 | if (!config) { | |
2397 | dev_err (&edge_port->port->dev, "%s - out of memory\n", __FUNCTION__); | |
2398 | return; | |
2399 | } | |
2400 | ||
2401 | cflag = tty->termios->c_cflag; | |
2402 | ||
2403 | config->wFlags = 0; | |
2404 | ||
2405 | /* These flags must be set */ | |
2406 | config->wFlags |= UMP_MASK_UART_FLAGS_RECEIVE_MS_INT; | |
2407 | config->wFlags |= UMP_MASK_UART_FLAGS_AUTO_START_ON_ERR; | |
2408 | config->bUartMode = (__u8)(edge_port->bUartMode); | |
2409 | ||
2410 | switch (cflag & CSIZE) { | |
2411 | case CS5: | |
2412 | config->bDataBits = UMP_UART_CHAR5BITS; | |
2413 | dbg ("%s - data bits = 5", __FUNCTION__); | |
2414 | break; | |
2415 | case CS6: | |
2416 | config->bDataBits = UMP_UART_CHAR6BITS; | |
2417 | dbg ("%s - data bits = 6", __FUNCTION__); | |
2418 | break; | |
2419 | case CS7: | |
2420 | config->bDataBits = UMP_UART_CHAR7BITS; | |
2421 | dbg ("%s - data bits = 7", __FUNCTION__); | |
2422 | break; | |
2423 | default: | |
2424 | case CS8: | |
2425 | config->bDataBits = UMP_UART_CHAR8BITS; | |
2426 | dbg ("%s - data bits = 8", __FUNCTION__); | |
2427 | break; | |
2428 | } | |
2429 | ||
2430 | if (cflag & PARENB) { | |
2431 | if (cflag & PARODD) { | |
2432 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; | |
2433 | config->bParity = UMP_UART_ODDPARITY; | |
2434 | dbg("%s - parity = odd", __FUNCTION__); | |
2435 | } else { | |
2436 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; | |
2437 | config->bParity = UMP_UART_EVENPARITY; | |
2438 | dbg("%s - parity = even", __FUNCTION__); | |
2439 | } | |
2440 | } else { | |
2441 | config->bParity = UMP_UART_NOPARITY; | |
2442 | dbg("%s - parity = none", __FUNCTION__); | |
2443 | } | |
2444 | ||
2445 | if (cflag & CSTOPB) { | |
2446 | config->bStopBits = UMP_UART_STOPBIT2; | |
2447 | dbg("%s - stop bits = 2", __FUNCTION__); | |
2448 | } else { | |
2449 | config->bStopBits = UMP_UART_STOPBIT1; | |
2450 | dbg("%s - stop bits = 1", __FUNCTION__); | |
2451 | } | |
2452 | ||
2453 | /* figure out the flow control settings */ | |
2454 | if (cflag & CRTSCTS) { | |
2455 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X_CTS_FLOW; | |
2456 | config->wFlags |= UMP_MASK_UART_FLAGS_RTS_FLOW; | |
2457 | dbg("%s - RTS/CTS is enabled", __FUNCTION__); | |
2458 | } else { | |
2459 | dbg("%s - RTS/CTS is disabled", __FUNCTION__); | |
2460 | tty->hw_stopped = 0; | |
2461 | restart_read(edge_port); | |
2462 | } | |
2463 | ||
2464 | /* if we are implementing XON/XOFF, set the start and stop character in the device */ | |
2465 | if (I_IXOFF(tty) || I_IXON(tty)) { | |
2466 | config->cXon = START_CHAR(tty); | |
2467 | config->cXoff = STOP_CHAR(tty); | |
2468 | ||
2469 | /* if we are implementing INBOUND XON/XOFF */ | |
2470 | if (I_IXOFF(tty)) { | |
2471 | config->wFlags |= UMP_MASK_UART_FLAGS_IN_X; | |
2472 | dbg ("%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x", | |
2473 | __FUNCTION__, config->cXon, config->cXoff); | |
2474 | } else { | |
2475 | dbg ("%s - INBOUND XON/XOFF is disabled", __FUNCTION__); | |
2476 | } | |
2477 | ||
2478 | /* if we are implementing OUTBOUND XON/XOFF */ | |
2479 | if (I_IXON(tty)) { | |
2480 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X; | |
2481 | dbg ("%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x", | |
2482 | __FUNCTION__, config->cXon, config->cXoff); | |
2483 | } else { | |
2484 | dbg ("%s - OUTBOUND XON/XOFF is disabled", __FUNCTION__); | |
2485 | } | |
2486 | } | |
2487 | ||
d5f5bcd4 AC |
2488 | tty->termios->c_cflag &= ~CMSPAR; |
2489 | ||
1da177e4 LT |
2490 | /* Round the baud rate */ |
2491 | baud = tty_get_baud_rate(tty); | |
2492 | if (!baud) { | |
2493 | /* pick a default, any default... */ | |
2494 | baud = 9600; | |
d5f5bcd4 AC |
2495 | } else |
2496 | tty_encode_baud_rate(tty, baud, baud); | |
2497 | ||
1da177e4 LT |
2498 | edge_port->baud_rate = baud; |
2499 | config->wBaudRate = (__u16)((461550L + baud/2) / baud); | |
2500 | ||
d5f5bcd4 AC |
2501 | /* FIXME: Recompute actual baud from divisor here */ |
2502 | ||
1da177e4 LT |
2503 | dbg ("%s - baud rate = %d, wBaudRate = %d", __FUNCTION__, baud, config->wBaudRate); |
2504 | ||
2505 | dbg ("wBaudRate: %d", (int)(461550L / config->wBaudRate)); | |
2506 | dbg ("wFlags: 0x%x", config->wFlags); | |
2507 | dbg ("bDataBits: %d", config->bDataBits); | |
2508 | dbg ("bParity: %d", config->bParity); | |
2509 | dbg ("bStopBits: %d", config->bStopBits); | |
2510 | dbg ("cXon: %d", config->cXon); | |
2511 | dbg ("cXoff: %d", config->cXoff); | |
2512 | dbg ("bUartMode: %d", config->bUartMode); | |
2513 | ||
2514 | /* move the word values into big endian mode */ | |
2515 | cpu_to_be16s (&config->wFlags); | |
2516 | cpu_to_be16s (&config->wBaudRate); | |
2517 | ||
2518 | status = TIWriteCommandSync (edge_port->port->serial->dev, | |
2519 | UMPC_SET_CONFIG, | |
2520 | (__u8)(UMPM_UART1_PORT + port_number), | |
2521 | 0, | |
2522 | (__u8 *)config, | |
2523 | sizeof(*config)); | |
2524 | if (status) { | |
2525 | dbg ("%s - error %d when trying to write config to device", | |
2526 | __FUNCTION__, status); | |
2527 | } | |
2528 | ||
2529 | kfree (config); | |
2530 | ||
2531 | return; | |
2532 | } | |
2533 | ||
606d099c | 2534 | static void edge_set_termios (struct usb_serial_port *port, struct ktermios *old_termios) |
1da177e4 LT |
2535 | { |
2536 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2537 | struct tty_struct *tty = port->tty; | |
2538 | unsigned int cflag; | |
2539 | ||
1da177e4 | 2540 | cflag = tty->termios->c_cflag; |
1da177e4 LT |
2541 | |
2542 | dbg("%s - clfag %08x iflag %08x", __FUNCTION__, | |
2543 | tty->termios->c_cflag, tty->termios->c_iflag); | |
d5f5bcd4 AC |
2544 | dbg("%s - old clfag %08x old iflag %08x", __FUNCTION__, |
2545 | old_termios->c_cflag, old_termios->c_iflag); | |
1da177e4 LT |
2546 | |
2547 | dbg("%s - port %d", __FUNCTION__, port->number); | |
2548 | ||
2549 | if (edge_port == NULL) | |
2550 | return; | |
2551 | ||
2552 | /* change the port settings to the new ones specified */ | |
2553 | change_port_settings (edge_port, old_termios); | |
2554 | ||
2555 | return; | |
2556 | } | |
2557 | ||
2558 | static int edge_tiocmset (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear) | |
2559 | { | |
2560 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2561 | unsigned int mcr; | |
3d71fe0b | 2562 | unsigned long flags; |
1da177e4 LT |
2563 | |
2564 | dbg("%s - port %d", __FUNCTION__, port->number); | |
2565 | ||
3d71fe0b | 2566 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
1da177e4 LT |
2567 | mcr = edge_port->shadow_mcr; |
2568 | if (set & TIOCM_RTS) | |
2569 | mcr |= MCR_RTS; | |
2570 | if (set & TIOCM_DTR) | |
2571 | mcr |= MCR_DTR; | |
2572 | if (set & TIOCM_LOOP) | |
2573 | mcr |= MCR_LOOPBACK; | |
2574 | ||
2575 | if (clear & TIOCM_RTS) | |
2576 | mcr &= ~MCR_RTS; | |
2577 | if (clear & TIOCM_DTR) | |
2578 | mcr &= ~MCR_DTR; | |
2579 | if (clear & TIOCM_LOOP) | |
2580 | mcr &= ~MCR_LOOPBACK; | |
2581 | ||
2582 | edge_port->shadow_mcr = mcr; | |
3d71fe0b | 2583 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
1da177e4 LT |
2584 | |
2585 | TIRestoreMCR (edge_port, mcr); | |
2586 | ||
2587 | return 0; | |
2588 | } | |
2589 | ||
2590 | static int edge_tiocmget(struct usb_serial_port *port, struct file *file) | |
2591 | { | |
2592 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2593 | unsigned int result = 0; | |
2594 | unsigned int msr; | |
2595 | unsigned int mcr; | |
3d71fe0b | 2596 | unsigned long flags; |
1da177e4 LT |
2597 | |
2598 | dbg("%s - port %d", __FUNCTION__, port->number); | |
2599 | ||
3d71fe0b AC |
2600 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
2601 | ||
1da177e4 LT |
2602 | msr = edge_port->shadow_msr; |
2603 | mcr = edge_port->shadow_mcr; | |
2604 | result = ((mcr & MCR_DTR) ? TIOCM_DTR: 0) /* 0x002 */ | |
2605 | | ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */ | |
2606 | | ((msr & EDGEPORT_MSR_CTS) ? TIOCM_CTS: 0) /* 0x020 */ | |
2607 | | ((msr & EDGEPORT_MSR_CD) ? TIOCM_CAR: 0) /* 0x040 */ | |
2608 | | ((msr & EDGEPORT_MSR_RI) ? TIOCM_RI: 0) /* 0x080 */ | |
2609 | | ((msr & EDGEPORT_MSR_DSR) ? TIOCM_DSR: 0); /* 0x100 */ | |
2610 | ||
2611 | ||
2612 | dbg("%s -- %x", __FUNCTION__, result); | |
3d71fe0b | 2613 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
1da177e4 LT |
2614 | |
2615 | return result; | |
2616 | } | |
2617 | ||
2618 | static int get_serial_info (struct edgeport_port *edge_port, struct serial_struct __user *retinfo) | |
2619 | { | |
2620 | struct serial_struct tmp; | |
2621 | ||
2622 | if (!retinfo) | |
2623 | return -EFAULT; | |
2624 | ||
2625 | memset(&tmp, 0, sizeof(tmp)); | |
2626 | ||
2627 | tmp.type = PORT_16550A; | |
2628 | tmp.line = edge_port->port->serial->minor; | |
2629 | tmp.port = edge_port->port->number; | |
2630 | tmp.irq = 0; | |
2631 | tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; | |
2632 | tmp.xmit_fifo_size = edge_port->port->bulk_out_size; | |
2633 | tmp.baud_base = 9600; | |
2634 | tmp.close_delay = 5*HZ; | |
2635 | tmp.closing_wait = closing_wait; | |
2636 | // tmp.custom_divisor = state->custom_divisor; | |
2637 | // tmp.hub6 = state->hub6; | |
2638 | // tmp.io_type = state->io_type; | |
2639 | ||
2640 | ||
2641 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) | |
2642 | return -EFAULT; | |
2643 | return 0; | |
2644 | } | |
2645 | ||
2646 | static int edge_ioctl (struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg) | |
2647 | { | |
2648 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2649 | struct async_icount cnow; | |
2650 | struct async_icount cprev; | |
2651 | ||
2652 | dbg("%s - port %d, cmd = 0x%x", __FUNCTION__, port->number, cmd); | |
2653 | ||
2654 | switch (cmd) { | |
2655 | case TIOCINQ: | |
2656 | dbg("%s - (%d) TIOCINQ", __FUNCTION__, port->number); | |
2657 | // return get_number_bytes_avail(edge_port, (unsigned int *) arg); | |
2658 | break; | |
2659 | ||
2660 | case TIOCSERGETLSR: | |
2661 | dbg("%s - (%d) TIOCSERGETLSR", __FUNCTION__, port->number); | |
2662 | // return get_lsr_info(edge_port, (unsigned int *) arg); | |
2663 | break; | |
2664 | ||
2665 | case TIOCGSERIAL: | |
2666 | dbg("%s - (%d) TIOCGSERIAL", __FUNCTION__, port->number); | |
2667 | return get_serial_info(edge_port, (struct serial_struct __user *) arg); | |
2668 | break; | |
2669 | ||
2670 | case TIOCSSERIAL: | |
2671 | dbg("%s - (%d) TIOCSSERIAL", __FUNCTION__, port->number); | |
2672 | break; | |
2673 | ||
2674 | case TIOCMIWAIT: | |
2675 | dbg("%s - (%d) TIOCMIWAIT", __FUNCTION__, port->number); | |
2676 | cprev = edge_port->icount; | |
2677 | while (1) { | |
2678 | interruptible_sleep_on(&edge_port->delta_msr_wait); | |
2679 | /* see if a signal did it */ | |
2680 | if (signal_pending(current)) | |
2681 | return -ERESTARTSYS; | |
2682 | cnow = edge_port->icount; | |
2683 | if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && | |
2684 | cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) | |
2685 | return -EIO; /* no change => error */ | |
2686 | if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || | |
2687 | ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || | |
2688 | ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || | |
2689 | ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) { | |
2690 | return 0; | |
2691 | } | |
2692 | cprev = cnow; | |
2693 | } | |
2694 | /* not reached */ | |
2695 | break; | |
2696 | ||
2697 | case TIOCGICOUNT: | |
2698 | dbg ("%s - (%d) TIOCGICOUNT RX=%d, TX=%d", __FUNCTION__, | |
2699 | port->number, edge_port->icount.rx, edge_port->icount.tx); | |
2700 | if (copy_to_user((void __user *)arg, &edge_port->icount, sizeof(edge_port->icount))) | |
2701 | return -EFAULT; | |
2702 | return 0; | |
2703 | } | |
2704 | ||
2705 | return -ENOIOCTLCMD; | |
2706 | } | |
2707 | ||
2708 | static void edge_break (struct usb_serial_port *port, int break_state) | |
2709 | { | |
2710 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2711 | int status; | |
2712 | ||
2713 | dbg ("%s - state = %d", __FUNCTION__, break_state); | |
2714 | ||
2715 | /* chase the port close */ | |
2716 | TIChasePort (edge_port, 0, 0); | |
2717 | ||
2718 | if (break_state == -1) { | |
2719 | status = TISetBreak (edge_port); | |
2720 | } else { | |
2721 | status = TIClearBreak (edge_port); | |
2722 | } | |
2723 | if (status) { | |
2724 | dbg ("%s - error %d sending break set/clear command.", | |
2725 | __FUNCTION__, status); | |
2726 | } | |
2727 | } | |
2728 | ||
2729 | static int edge_startup (struct usb_serial *serial) | |
2730 | { | |
2731 | struct edgeport_serial *edge_serial; | |
2732 | struct edgeport_port *edge_port; | |
2733 | struct usb_device *dev; | |
2734 | int status; | |
2735 | int i; | |
2736 | ||
2737 | dev = serial->dev; | |
2738 | ||
2739 | /* create our private serial structure */ | |
80b6ca48 | 2740 | edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL); |
1da177e4 LT |
2741 | if (edge_serial == NULL) { |
2742 | dev_err(&serial->dev->dev, "%s - Out of memory\n", __FUNCTION__); | |
2743 | return -ENOMEM; | |
2744 | } | |
241ca64f | 2745 | mutex_init(&edge_serial->es_lock); |
1da177e4 LT |
2746 | edge_serial->serial = serial; |
2747 | usb_set_serial_data(serial, edge_serial); | |
2748 | ||
2749 | status = TIDownloadFirmware (edge_serial); | |
2750 | if (status) { | |
2751 | kfree (edge_serial); | |
2752 | return status; | |
2753 | } | |
2754 | ||
2755 | /* set up our port private structures */ | |
2756 | for (i = 0; i < serial->num_ports; ++i) { | |
80b6ca48 | 2757 | edge_port = kzalloc(sizeof(struct edgeport_port), GFP_KERNEL); |
1da177e4 LT |
2758 | if (edge_port == NULL) { |
2759 | dev_err(&serial->dev->dev, "%s - Out of memory\n", __FUNCTION__); | |
2760 | goto cleanup; | |
2761 | } | |
1da177e4 LT |
2762 | spin_lock_init(&edge_port->ep_lock); |
2763 | edge_port->ep_out_buf = edge_buf_alloc(EDGE_OUT_BUF_SIZE); | |
2764 | if (edge_port->ep_out_buf == NULL) { | |
2765 | dev_err(&serial->dev->dev, "%s - Out of memory\n", __FUNCTION__); | |
2766 | kfree(edge_port); | |
2767 | goto cleanup; | |
2768 | } | |
2769 | edge_port->port = serial->port[i]; | |
2770 | edge_port->edge_serial = edge_serial; | |
2771 | usb_set_serial_port_data(serial->port[i], edge_port); | |
fc4cbd75 | 2772 | edge_port->bUartMode = default_uart_mode; |
1da177e4 LT |
2773 | } |
2774 | ||
2775 | return 0; | |
2776 | ||
2777 | cleanup: | |
2778 | for (--i; i>=0; --i) { | |
2779 | edge_port = usb_get_serial_port_data(serial->port[i]); | |
2780 | edge_buf_free(edge_port->ep_out_buf); | |
2781 | kfree(edge_port); | |
2782 | usb_set_serial_port_data(serial->port[i], NULL); | |
2783 | } | |
2784 | kfree (edge_serial); | |
2785 | usb_set_serial_data(serial, NULL); | |
2786 | return -ENOMEM; | |
2787 | } | |
2788 | ||
2789 | static void edge_shutdown (struct usb_serial *serial) | |
2790 | { | |
2791 | int i; | |
2792 | struct edgeport_port *edge_port; | |
2793 | ||
2794 | dbg ("%s", __FUNCTION__); | |
2795 | ||
0d46c007 | 2796 | for (i = 0; i < serial->num_ports; ++i) { |
1da177e4 | 2797 | edge_port = usb_get_serial_port_data(serial->port[i]); |
fc4cbd75 | 2798 | edge_remove_sysfs_attrs(edge_port->port); |
0d46c007 JJ |
2799 | edge_buf_free(edge_port->ep_out_buf); |
2800 | kfree(edge_port); | |
1da177e4 LT |
2801 | usb_set_serial_port_data(serial->port[i], NULL); |
2802 | } | |
0d46c007 | 2803 | kfree(usb_get_serial_data(serial)); |
1da177e4 LT |
2804 | usb_set_serial_data(serial, NULL); |
2805 | } | |
2806 | ||
2807 | ||
fc4cbd75 MP |
2808 | /* Sysfs Attributes */ |
2809 | ||
2810 | static ssize_t show_uart_mode(struct device *dev, | |
2811 | struct device_attribute *attr, char *buf) | |
2812 | { | |
2813 | struct usb_serial_port *port = to_usb_serial_port(dev); | |
2814 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2815 | ||
2816 | return sprintf(buf, "%d\n", edge_port->bUartMode); | |
2817 | } | |
2818 | ||
2819 | static ssize_t store_uart_mode(struct device *dev, | |
2820 | struct device_attribute *attr, const char *valbuf, size_t count) | |
2821 | { | |
2822 | struct usb_serial_port *port = to_usb_serial_port(dev); | |
2823 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2824 | unsigned int v = simple_strtoul(valbuf, NULL, 0); | |
2825 | ||
2826 | dbg("%s: setting uart_mode = %d", __FUNCTION__, v); | |
2827 | ||
2828 | if (v < 256) | |
2829 | edge_port->bUartMode = v; | |
2830 | else | |
2831 | dev_err(dev, "%s - uart_mode %d is invalid\n", __FUNCTION__, v); | |
2832 | ||
2833 | return count; | |
2834 | } | |
2835 | ||
2836 | static DEVICE_ATTR(uart_mode, S_IWUSR | S_IRUGO, show_uart_mode, store_uart_mode); | |
2837 | ||
2838 | static int edge_create_sysfs_attrs(struct usb_serial_port *port) | |
2839 | { | |
2840 | return device_create_file(&port->dev, &dev_attr_uart_mode); | |
2841 | } | |
2842 | ||
2843 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port) | |
2844 | { | |
2845 | device_remove_file(&port->dev, &dev_attr_uart_mode); | |
2846 | return 0; | |
2847 | } | |
2848 | ||
2849 | ||
1da177e4 LT |
2850 | /* Circular Buffer */ |
2851 | ||
2852 | /* | |
2853 | * edge_buf_alloc | |
2854 | * | |
2855 | * Allocate a circular buffer and all associated memory. | |
2856 | */ | |
2857 | ||
2858 | static struct edge_buf *edge_buf_alloc(unsigned int size) | |
2859 | { | |
2860 | struct edge_buf *eb; | |
2861 | ||
2862 | ||
2863 | if (size == 0) | |
2864 | return NULL; | |
2865 | ||
5cbded58 | 2866 | eb = kmalloc(sizeof(struct edge_buf), GFP_KERNEL); |
1da177e4 LT |
2867 | if (eb == NULL) |
2868 | return NULL; | |
2869 | ||
2870 | eb->buf_buf = kmalloc(size, GFP_KERNEL); | |
2871 | if (eb->buf_buf == NULL) { | |
2872 | kfree(eb); | |
2873 | return NULL; | |
2874 | } | |
2875 | ||
2876 | eb->buf_size = size; | |
2877 | eb->buf_get = eb->buf_put = eb->buf_buf; | |
2878 | ||
2879 | return eb; | |
2880 | } | |
2881 | ||
2882 | ||
2883 | /* | |
2884 | * edge_buf_free | |
2885 | * | |
2886 | * Free the buffer and all associated memory. | |
2887 | */ | |
2888 | ||
3d48586c | 2889 | static void edge_buf_free(struct edge_buf *eb) |
1da177e4 | 2890 | { |
1bc3c9e1 JJ |
2891 | if (eb) { |
2892 | kfree(eb->buf_buf); | |
1da177e4 LT |
2893 | kfree(eb); |
2894 | } | |
2895 | } | |
2896 | ||
2897 | ||
2898 | /* | |
2899 | * edge_buf_clear | |
2900 | * | |
2901 | * Clear out all data in the circular buffer. | |
2902 | */ | |
2903 | ||
2904 | static void edge_buf_clear(struct edge_buf *eb) | |
2905 | { | |
2906 | if (eb != NULL) | |
2907 | eb->buf_get = eb->buf_put; | |
2908 | /* equivalent to a get of all data available */ | |
2909 | } | |
2910 | ||
2911 | ||
2912 | /* | |
2913 | * edge_buf_data_avail | |
2914 | * | |
2915 | * Return the number of bytes of data available in the circular | |
2916 | * buffer. | |
2917 | */ | |
2918 | ||
2919 | static unsigned int edge_buf_data_avail(struct edge_buf *eb) | |
2920 | { | |
2921 | if (eb != NULL) | |
2922 | return ((eb->buf_size + eb->buf_put - eb->buf_get) % eb->buf_size); | |
2923 | else | |
2924 | return 0; | |
2925 | } | |
2926 | ||
2927 | ||
2928 | /* | |
2929 | * edge_buf_space_avail | |
2930 | * | |
2931 | * Return the number of bytes of space available in the circular | |
2932 | * buffer. | |
2933 | */ | |
2934 | ||
2935 | static unsigned int edge_buf_space_avail(struct edge_buf *eb) | |
2936 | { | |
2937 | if (eb != NULL) | |
2938 | return ((eb->buf_size + eb->buf_get - eb->buf_put - 1) % eb->buf_size); | |
2939 | else | |
2940 | return 0; | |
2941 | } | |
2942 | ||
2943 | ||
2944 | /* | |
2945 | * edge_buf_put | |
2946 | * | |
2947 | * Copy data data from a user buffer and put it into the circular buffer. | |
2948 | * Restrict to the amount of space available. | |
2949 | * | |
2950 | * Return the number of bytes copied. | |
2951 | */ | |
2952 | ||
2953 | static unsigned int edge_buf_put(struct edge_buf *eb, const char *buf, | |
2954 | unsigned int count) | |
2955 | { | |
2956 | unsigned int len; | |
2957 | ||
2958 | ||
2959 | if (eb == NULL) | |
2960 | return 0; | |
2961 | ||
2962 | len = edge_buf_space_avail(eb); | |
2963 | if (count > len) | |
2964 | count = len; | |
2965 | ||
2966 | if (count == 0) | |
2967 | return 0; | |
2968 | ||
2969 | len = eb->buf_buf + eb->buf_size - eb->buf_put; | |
2970 | if (count > len) { | |
2971 | memcpy(eb->buf_put, buf, len); | |
2972 | memcpy(eb->buf_buf, buf+len, count - len); | |
2973 | eb->buf_put = eb->buf_buf + count - len; | |
2974 | } else { | |
2975 | memcpy(eb->buf_put, buf, count); | |
2976 | if (count < len) | |
2977 | eb->buf_put += count; | |
2978 | else /* count == len */ | |
2979 | eb->buf_put = eb->buf_buf; | |
2980 | } | |
2981 | ||
2982 | return count; | |
2983 | } | |
2984 | ||
2985 | ||
2986 | /* | |
2987 | * edge_buf_get | |
2988 | * | |
2989 | * Get data from the circular buffer and copy to the given buffer. | |
2990 | * Restrict to the amount of data available. | |
2991 | * | |
2992 | * Return the number of bytes copied. | |
2993 | */ | |
2994 | ||
2995 | static unsigned int edge_buf_get(struct edge_buf *eb, char *buf, | |
2996 | unsigned int count) | |
2997 | { | |
2998 | unsigned int len; | |
2999 | ||
3000 | ||
3001 | if (eb == NULL) | |
3002 | return 0; | |
3003 | ||
3004 | len = edge_buf_data_avail(eb); | |
3005 | if (count > len) | |
3006 | count = len; | |
3007 | ||
3008 | if (count == 0) | |
3009 | return 0; | |
3010 | ||
3011 | len = eb->buf_buf + eb->buf_size - eb->buf_get; | |
3012 | if (count > len) { | |
3013 | memcpy(buf, eb->buf_get, len); | |
3014 | memcpy(buf+len, eb->buf_buf, count - len); | |
3015 | eb->buf_get = eb->buf_buf + count - len; | |
3016 | } else { | |
3017 | memcpy(buf, eb->buf_get, count); | |
3018 | if (count < len) | |
3019 | eb->buf_get += count; | |
3020 | else /* count == len */ | |
3021 | eb->buf_get = eb->buf_buf; | |
3022 | } | |
3023 | ||
3024 | return count; | |
3025 | } | |
3026 | ||
3027 | ||
ea65370d | 3028 | static struct usb_serial_driver edgeport_1port_device = { |
18fcac35 | 3029 | .driver = { |
269bda1c GKH |
3030 | .owner = THIS_MODULE, |
3031 | .name = "edgeport_ti_1", | |
18fcac35 | 3032 | }, |
269bda1c | 3033 | .description = "Edgeport TI 1 port adapter", |
d9b1b787 | 3034 | .usb_driver = &io_driver, |
1da177e4 LT |
3035 | .id_table = edgeport_1port_id_table, |
3036 | .num_interrupt_in = 1, | |
3037 | .num_bulk_in = 1, | |
3038 | .num_bulk_out = 1, | |
3039 | .num_ports = 1, | |
3040 | .open = edge_open, | |
3041 | .close = edge_close, | |
3042 | .throttle = edge_throttle, | |
3043 | .unthrottle = edge_unthrottle, | |
3044 | .attach = edge_startup, | |
3045 | .shutdown = edge_shutdown, | |
fc4cbd75 | 3046 | .port_probe = edge_create_sysfs_attrs, |
1da177e4 LT |
3047 | .ioctl = edge_ioctl, |
3048 | .set_termios = edge_set_termios, | |
3049 | .tiocmget = edge_tiocmget, | |
3050 | .tiocmset = edge_tiocmset, | |
3051 | .write = edge_write, | |
3052 | .write_room = edge_write_room, | |
3053 | .chars_in_buffer = edge_chars_in_buffer, | |
3054 | .break_ctl = edge_break, | |
3055 | .read_int_callback = edge_interrupt_callback, | |
3056 | .read_bulk_callback = edge_bulk_in_callback, | |
3057 | .write_bulk_callback = edge_bulk_out_callback, | |
3058 | }; | |
3059 | ||
ea65370d | 3060 | static struct usb_serial_driver edgeport_2port_device = { |
18fcac35 | 3061 | .driver = { |
269bda1c GKH |
3062 | .owner = THIS_MODULE, |
3063 | .name = "edgeport_ti_2", | |
18fcac35 | 3064 | }, |
269bda1c | 3065 | .description = "Edgeport TI 2 port adapter", |
d9b1b787 | 3066 | .usb_driver = &io_driver, |
1da177e4 LT |
3067 | .id_table = edgeport_2port_id_table, |
3068 | .num_interrupt_in = 1, | |
3069 | .num_bulk_in = 2, | |
3070 | .num_bulk_out = 2, | |
3071 | .num_ports = 2, | |
3072 | .open = edge_open, | |
3073 | .close = edge_close, | |
3074 | .throttle = edge_throttle, | |
3075 | .unthrottle = edge_unthrottle, | |
3076 | .attach = edge_startup, | |
3077 | .shutdown = edge_shutdown, | |
fc4cbd75 | 3078 | .port_probe = edge_create_sysfs_attrs, |
1da177e4 LT |
3079 | .ioctl = edge_ioctl, |
3080 | .set_termios = edge_set_termios, | |
3081 | .tiocmget = edge_tiocmget, | |
3082 | .tiocmset = edge_tiocmset, | |
3083 | .write = edge_write, | |
3084 | .write_room = edge_write_room, | |
3085 | .chars_in_buffer = edge_chars_in_buffer, | |
3086 | .break_ctl = edge_break, | |
3087 | .read_int_callback = edge_interrupt_callback, | |
3088 | .read_bulk_callback = edge_bulk_in_callback, | |
3089 | .write_bulk_callback = edge_bulk_out_callback, | |
3090 | }; | |
3091 | ||
3092 | ||
3093 | static int __init edgeport_init(void) | |
3094 | { | |
3095 | int retval; | |
3096 | retval = usb_serial_register(&edgeport_1port_device); | |
3097 | if (retval) | |
3098 | goto failed_1port_device_register; | |
3099 | retval = usb_serial_register(&edgeport_2port_device); | |
3100 | if (retval) | |
3101 | goto failed_2port_device_register; | |
3102 | retval = usb_register(&io_driver); | |
3103 | if (retval) | |
3104 | goto failed_usb_register; | |
3105 | info(DRIVER_DESC " " DRIVER_VERSION); | |
3106 | return 0; | |
3107 | failed_usb_register: | |
3108 | usb_serial_deregister(&edgeport_2port_device); | |
3109 | failed_2port_device_register: | |
3110 | usb_serial_deregister(&edgeport_1port_device); | |
3111 | failed_1port_device_register: | |
3112 | return retval; | |
3113 | } | |
3114 | ||
3115 | static void __exit edgeport_exit (void) | |
3116 | { | |
3117 | usb_deregister (&io_driver); | |
3118 | usb_serial_deregister (&edgeport_1port_device); | |
3119 | usb_serial_deregister (&edgeport_2port_device); | |
3120 | } | |
3121 | ||
3122 | module_init(edgeport_init); | |
3123 | module_exit(edgeport_exit); | |
3124 | ||
3125 | /* Module information */ | |
3126 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
3127 | MODULE_DESCRIPTION(DRIVER_DESC); | |
3128 | MODULE_LICENSE("GPL"); | |
3129 | ||
3130 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
3131 | MODULE_PARM_DESC(debug, "Debug enabled or not"); | |
3132 | ||
3133 | module_param(low_latency, bool, S_IRUGO | S_IWUSR); | |
3134 | MODULE_PARM_DESC(low_latency, "Low latency enabled or not"); | |
3135 | ||
3136 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); | |
3137 | MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs"); | |
3138 | ||
3139 | module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR); | |
3140 | MODULE_PARM_DESC(ignore_cpu_rev, "Ignore the cpu revision when connecting to a device"); | |
3141 | ||
fc4cbd75 MP |
3142 | module_param(default_uart_mode, int, S_IRUGO | S_IWUSR); |
3143 | MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ..."); | |
3144 |