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1da177e4 LT |
1 | /* |
2 | * Edgeport USB Serial Converter driver | |
3 | * | |
4 | * Copyright (C) 2000-2002 Inside Out Networks, All rights reserved. | |
5 | * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * Supports the following devices: | |
13 | * EP/1 EP/2 EP/4 EP/21 EP/22 EP/221 EP/42 EP/421 WATCHPORT | |
14 | * | |
15 | * For questions or problems with this driver, contact Inside Out | |
16 | * Networks technical support, or Peter Berger <pberger@brimson.com>, | |
17 | * or Al Borchers <alborchers@steinerpoint.com>. | |
1da177e4 LT |
18 | */ |
19 | ||
1da177e4 LT |
20 | #include <linux/kernel.h> |
21 | #include <linux/jiffies.h> | |
22 | #include <linux/errno.h> | |
1da177e4 LT |
23 | #include <linux/slab.h> |
24 | #include <linux/tty.h> | |
25 | #include <linux/tty_driver.h> | |
26 | #include <linux/tty_flip.h> | |
27 | #include <linux/module.h> | |
28 | #include <linux/spinlock.h> | |
241ca64f | 29 | #include <linux/mutex.h> |
1da177e4 | 30 | #include <linux/serial.h> |
5509076d | 31 | #include <linux/swab.h> |
d733cec1 | 32 | #include <linux/kfifo.h> |
1da177e4 | 33 | #include <linux/ioctl.h> |
d12b219a | 34 | #include <linux/firmware.h> |
2742fd88 | 35 | #include <linux/uaccess.h> |
1da177e4 | 36 | #include <linux/usb.h> |
a969888c | 37 | #include <linux/usb/serial.h> |
1da177e4 | 38 | |
1da177e4 LT |
39 | #include "io_16654.h" |
40 | #include "io_usbvend.h" | |
41 | #include "io_ti.h" | |
42 | ||
1da177e4 LT |
43 | #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com> and David Iacovelli" |
44 | #define DRIVER_DESC "Edgeport USB Serial Driver" | |
45 | ||
1da177e4 LT |
46 | #define EPROM_PAGE_SIZE 64 |
47 | ||
48 | ||
1da177e4 LT |
49 | /* different hardware types */ |
50 | #define HARDWARE_TYPE_930 0 | |
51 | #define HARDWARE_TYPE_TIUMP 1 | |
52 | ||
2742fd88 AC |
53 | /* IOCTL_PRIVATE_TI_GET_MODE Definitions */ |
54 | #define TI_MODE_CONFIGURING 0 /* Device has not entered start device */ | |
55 | #define TI_MODE_BOOT 1 /* Staying in boot mode */ | |
56 | #define TI_MODE_DOWNLOAD 2 /* Made it to download mode */ | |
75899513 PB |
57 | #define TI_MODE_TRANSITIONING 3 /* |
58 | * Currently in boot mode but | |
59 | * transitioning to download mode | |
60 | */ | |
1da177e4 LT |
61 | |
62 | /* read urb state */ | |
63 | #define EDGE_READ_URB_RUNNING 0 | |
64 | #define EDGE_READ_URB_STOPPING 1 | |
65 | #define EDGE_READ_URB_STOPPED 2 | |
66 | ||
1da177e4 LT |
67 | #define EDGE_CLOSING_WAIT 4000 /* in .01 sec */ |
68 | ||
1da177e4 LT |
69 | |
70 | /* Product information read from the Edgeport */ | |
2742fd88 AC |
71 | struct product_info { |
72 | int TiMode; /* Current TI Mode */ | |
73 | __u8 hardware_type; /* Type of hardware */ | |
1da177e4 LT |
74 | } __attribute__((packed)); |
75 | ||
c0e34831 PB |
76 | /* |
77 | * Edgeport firmware header | |
78 | * | |
79 | * "build_number" has been set to 0 in all three of the images I have | |
80 | * seen, and Digi Tech Support suggests that it is safe to ignore it. | |
81 | * | |
82 | * "length" is the number of bytes of actual data following the header. | |
83 | * | |
84 | * "checksum" is the low order byte resulting from adding the values of | |
85 | * all the data bytes. | |
86 | */ | |
87 | struct edgeport_fw_hdr { | |
88 | u8 major_version; | |
89 | u8 minor_version; | |
90 | __le16 build_number; | |
91 | __le16 length; | |
92 | u8 checksum; | |
93 | } __packed; | |
94 | ||
1da177e4 LT |
95 | struct edgeport_port { |
96 | __u16 uart_base; | |
97 | __u16 dma_address; | |
98 | __u8 shadow_msr; | |
99 | __u8 shadow_mcr; | |
100 | __u8 shadow_lsr; | |
101 | __u8 lsr_mask; | |
75899513 PB |
102 | __u32 ump_read_timeout; /* |
103 | * Number of milliseconds the UMP will | |
104 | * wait without data before completing | |
105 | * a read short | |
106 | */ | |
1da177e4 LT |
107 | int baud_rate; |
108 | int close_pending; | |
109 | int lsr_event; | |
48ee5801 | 110 | |
1da177e4 LT |
111 | struct edgeport_serial *edge_serial; |
112 | struct usb_serial_port *port; | |
2742fd88 | 113 | __u8 bUartMode; /* Port type, 0: RS232, etc. */ |
1da177e4 LT |
114 | spinlock_t ep_lock; |
115 | int ep_read_urb_state; | |
116 | int ep_write_urb_in_use; | |
1da177e4 LT |
117 | }; |
118 | ||
119 | struct edgeport_serial { | |
120 | struct product_info product_info; | |
2742fd88 | 121 | u8 TI_I2C_Type; /* Type of I2C in UMP */ |
75899513 PB |
122 | u8 TiReadI2C; /* |
123 | * Set to TRUE if we have read the | |
124 | * I2c in Boot Mode | |
125 | */ | |
241ca64f | 126 | struct mutex es_lock; |
1da177e4 LT |
127 | int num_ports_open; |
128 | struct usb_serial *serial; | |
26c78daa | 129 | struct delayed_work heartbeat_work; |
c0e34831 | 130 | int fw_version; |
26c78daa | 131 | bool use_heartbeat; |
1da177e4 LT |
132 | }; |
133 | ||
134 | ||
135 | /* Devices that this driver supports */ | |
7d40d7e8 | 136 | static const struct usb_device_id edgeport_1port_id_table[] = { |
1da177e4 LT |
137 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, |
138 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, | |
139 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, | |
140 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, | |
141 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, | |
142 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, | |
143 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, | |
144 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, | |
145 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, | |
146 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, | |
147 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, | |
148 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, | |
149 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, | |
150 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, | |
151 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, | |
152 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, | |
153 | { } | |
154 | }; | |
155 | ||
7d40d7e8 | 156 | static const struct usb_device_id edgeport_2port_id_table[] = { |
1da177e4 LT |
157 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, |
158 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, | |
159 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, | |
160 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, | |
161 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, | |
162 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, | |
163 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, | |
164 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, | |
165 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, | |
166 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, | |
167 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, | |
168 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, | |
fc4cbd75 | 169 | /* The 4, 8 and 16 port devices show up as multiple 2 port devices */ |
1da177e4 | 170 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, |
fc4cbd75 MP |
171 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
172 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, | |
173 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, | |
174 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, | |
1da177e4 LT |
175 | { } |
176 | }; | |
177 | ||
178 | /* Devices that this driver supports */ | |
7d40d7e8 | 179 | static const struct usb_device_id id_table_combined[] = { |
1da177e4 LT |
180 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, |
181 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, | |
182 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, | |
183 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, | |
184 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, | |
185 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, | |
186 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, | |
187 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, | |
188 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, | |
189 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, | |
190 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, | |
191 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, | |
192 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, | |
193 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, | |
194 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, | |
195 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, | |
196 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, | |
197 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, | |
198 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, | |
199 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, | |
200 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, | |
201 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, | |
202 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, | |
203 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, | |
204 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, | |
205 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, | |
206 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, | |
207 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, | |
208 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, | |
fc4cbd75 MP |
209 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
210 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, | |
211 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, | |
212 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, | |
1da177e4 LT |
213 | { } |
214 | }; | |
215 | ||
2742fd88 | 216 | MODULE_DEVICE_TABLE(usb, id_table_combined); |
1da177e4 | 217 | |
1da177e4 | 218 | static int closing_wait = EDGE_CLOSING_WAIT; |
90ab5ee9 | 219 | static bool ignore_cpu_rev; |
2742fd88 | 220 | static int default_uart_mode; /* RS232 */ |
1da177e4 | 221 | |
2e124b4a JS |
222 | static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data, |
223 | int length); | |
1da177e4 LT |
224 | |
225 | static void stop_read(struct edgeport_port *edge_port); | |
226 | static int restart_read(struct edgeport_port *edge_port); | |
227 | ||
95da310e AC |
228 | static void edge_set_termios(struct tty_struct *tty, |
229 | struct usb_serial_port *port, struct ktermios *old_termios); | |
ae3759c2 | 230 | static void edge_send(struct usb_serial_port *port, struct tty_struct *tty); |
1da177e4 | 231 | |
bebf1f18 PB |
232 | static int do_download_mode(struct edgeport_serial *serial, |
233 | const struct firmware *fw); | |
234 | static int do_boot_mode(struct edgeport_serial *serial, | |
235 | const struct firmware *fw); | |
236 | ||
fc4cbd75 MP |
237 | /* sysfs attributes */ |
238 | static int edge_create_sysfs_attrs(struct usb_serial_port *port); | |
239 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port); | |
240 | ||
26c78daa PB |
241 | /* |
242 | * Some release of Edgeport firmware "down3.bin" after version 4.80 | |
243 | * introduced code to automatically disconnect idle devices on some | |
244 | * Edgeport models after periods of inactivity, typically ~60 seconds. | |
245 | * This occurs without regard to whether ports on the device are open | |
246 | * or not. Digi International Tech Support suggested: | |
247 | * | |
248 | * 1. Adding driver "heartbeat" code to reset the firmware timer by | |
249 | * requesting a descriptor record every 15 seconds, which should be | |
250 | * effective with newer firmware versions that require it, and benign | |
251 | * with older versions that do not. In practice 40 seconds seems often | |
252 | * enough. | |
253 | * 2. The heartbeat code is currently required only on Edgeport/416 models. | |
254 | */ | |
255 | #define FW_HEARTBEAT_VERSION_CUTOFF ((4 << 8) + 80) | |
256 | #define FW_HEARTBEAT_SECS 40 | |
1da177e4 | 257 | |
c3ece7e7 PB |
258 | /* Timeouts in msecs: firmware downloads take longer */ |
259 | #define TI_VSEND_TIMEOUT_DEFAULT 1000 | |
260 | #define TI_VSEND_TIMEOUT_FW_DOWNLOAD 10000 | |
261 | ||
2742fd88 AC |
262 | static int ti_vread_sync(struct usb_device *dev, __u8 request, |
263 | __u16 value, __u16 index, u8 *data, int size) | |
1da177e4 LT |
264 | { |
265 | int status; | |
266 | ||
2742fd88 AC |
267 | status = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request, |
268 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), | |
269 | value, index, data, size, 1000); | |
1da177e4 LT |
270 | if (status < 0) |
271 | return status; | |
272 | if (status != size) { | |
67e6da70 GKH |
273 | dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n", |
274 | __func__, size, status); | |
1da177e4 LT |
275 | return -ECOMM; |
276 | } | |
277 | return 0; | |
278 | } | |
279 | ||
c3ece7e7 PB |
280 | static int ti_vsend_sync(struct usb_device *dev, u8 request, u16 value, |
281 | u16 index, u8 *data, int size, int timeout) | |
1da177e4 LT |
282 | { |
283 | int status; | |
284 | ||
2742fd88 AC |
285 | status = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request, |
286 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), | |
c3ece7e7 | 287 | value, index, data, size, timeout); |
1da177e4 LT |
288 | if (status < 0) |
289 | return status; | |
290 | if (status != size) { | |
67e6da70 GKH |
291 | dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n", |
292 | __func__, size, status); | |
1da177e4 LT |
293 | return -ECOMM; |
294 | } | |
295 | return 0; | |
296 | } | |
297 | ||
2742fd88 | 298 | static int send_cmd(struct usb_device *dev, __u8 command, |
1da177e4 LT |
299 | __u8 moduleid, __u16 value, u8 *data, |
300 | int size) | |
301 | { | |
c3ece7e7 PB |
302 | return ti_vsend_sync(dev, command, value, moduleid, data, size, |
303 | TI_VSEND_TIMEOUT_DEFAULT); | |
1da177e4 LT |
304 | } |
305 | ||
306 | /* clear tx/rx buffers and fifo in TI UMP */ | |
2742fd88 | 307 | static int purge_port(struct usb_serial_port *port, __u16 mask) |
1da177e4 | 308 | { |
1143832e | 309 | int port_number = port->port_number; |
1da177e4 | 310 | |
67e6da70 | 311 | dev_dbg(&port->dev, "%s - port %d, mask %x\n", __func__, port_number, mask); |
1da177e4 | 312 | |
2742fd88 | 313 | return send_cmd(port->serial->dev, |
1da177e4 LT |
314 | UMPC_PURGE_PORT, |
315 | (__u8)(UMPM_UART1_PORT + port_number), | |
316 | mask, | |
317 | NULL, | |
318 | 0); | |
319 | } | |
320 | ||
321 | /** | |
2742fd88 | 322 | * read_download_mem - Read edgeport memory from TI chip |
1da177e4 LT |
323 | * @dev: usb device pointer |
324 | * @start_address: Device CPU address at which to read | |
325 | * @length: Length of above data | |
326 | * @address_type: Can read both XDATA and I2C | |
327 | * @buffer: pointer to input data buffer | |
328 | */ | |
2742fd88 | 329 | static int read_download_mem(struct usb_device *dev, int start_address, |
1da177e4 LT |
330 | int length, __u8 address_type, __u8 *buffer) |
331 | { | |
332 | int status = 0; | |
333 | __u8 read_length; | |
5509076d | 334 | u16 be_start_address; |
2742fd88 | 335 | |
67e6da70 | 336 | dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, length); |
1da177e4 | 337 | |
75899513 PB |
338 | /* |
339 | * Read in blocks of 64 bytes | |
1da177e4 LT |
340 | * (TI firmware can't handle more than 64 byte reads) |
341 | */ | |
342 | while (length) { | |
343 | if (length > 64) | |
2742fd88 | 344 | read_length = 64; |
1da177e4 LT |
345 | else |
346 | read_length = (__u8)length; | |
347 | ||
348 | if (read_length > 1) { | |
67e6da70 | 349 | dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, read_length); |
1da177e4 | 350 | } |
5509076d JH |
351 | /* |
352 | * NOTE: Must use swab as wIndex is sent in little-endian | |
353 | * byte order regardless of host byte order. | |
354 | */ | |
355 | be_start_address = swab16((u16)start_address); | |
2742fd88 AC |
356 | status = ti_vread_sync(dev, UMPC_MEMORY_READ, |
357 | (__u16)address_type, | |
5509076d | 358 | be_start_address, |
2742fd88 | 359 | buffer, read_length); |
1da177e4 LT |
360 | |
361 | if (status) { | |
67e6da70 | 362 | dev_dbg(&dev->dev, "%s - ERROR %x\n", __func__, status); |
1da177e4 LT |
363 | return status; |
364 | } | |
365 | ||
2742fd88 | 366 | if (read_length > 1) |
59d33f2f | 367 | usb_serial_debug_data(&dev->dev, __func__, read_length, buffer); |
1da177e4 LT |
368 | |
369 | /* Update pointers/length */ | |
370 | start_address += read_length; | |
371 | buffer += read_length; | |
372 | length -= read_length; | |
373 | } | |
2742fd88 | 374 | |
1da177e4 LT |
375 | return status; |
376 | } | |
377 | ||
2742fd88 AC |
378 | static int read_ram(struct usb_device *dev, int start_address, |
379 | int length, __u8 *buffer) | |
1da177e4 | 380 | { |
2742fd88 AC |
381 | return read_download_mem(dev, start_address, length, |
382 | DTK_ADDR_SPACE_XDATA, buffer); | |
1da177e4 LT |
383 | } |
384 | ||
385 | /* Read edgeport memory to a given block */ | |
2742fd88 AC |
386 | static int read_boot_mem(struct edgeport_serial *serial, |
387 | int start_address, int length, __u8 *buffer) | |
1da177e4 LT |
388 | { |
389 | int status = 0; | |
390 | int i; | |
391 | ||
2742fd88 AC |
392 | for (i = 0; i < length; i++) { |
393 | status = ti_vread_sync(serial->serial->dev, | |
394 | UMPC_MEMORY_READ, serial->TI_I2C_Type, | |
395 | (__u16)(start_address+i), &buffer[i], 0x01); | |
1da177e4 | 396 | if (status) { |
67e6da70 | 397 | dev_dbg(&serial->serial->dev->dev, "%s - ERROR %x\n", __func__, status); |
1da177e4 LT |
398 | return status; |
399 | } | |
400 | } | |
401 | ||
67e6da70 GKH |
402 | dev_dbg(&serial->serial->dev->dev, "%s - start_address = %x, length = %d\n", |
403 | __func__, start_address, length); | |
59d33f2f | 404 | usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer); |
1da177e4 LT |
405 | |
406 | serial->TiReadI2C = 1; | |
407 | ||
408 | return status; | |
409 | } | |
410 | ||
411 | /* Write given block to TI EPROM memory */ | |
2742fd88 AC |
412 | static int write_boot_mem(struct edgeport_serial *serial, |
413 | int start_address, int length, __u8 *buffer) | |
1da177e4 LT |
414 | { |
415 | int status = 0; | |
416 | int i; | |
e9305d2f | 417 | u8 *temp; |
1da177e4 LT |
418 | |
419 | /* Must do a read before write */ | |
420 | if (!serial->TiReadI2C) { | |
e9305d2f | 421 | temp = kmalloc(1, GFP_KERNEL); |
10c642d0 | 422 | if (!temp) |
e9305d2f | 423 | return -ENOMEM; |
10c642d0 | 424 | |
e9305d2f JH |
425 | status = read_boot_mem(serial, 0, 1, temp); |
426 | kfree(temp); | |
1da177e4 LT |
427 | if (status) |
428 | return status; | |
429 | } | |
430 | ||
2742fd88 | 431 | for (i = 0; i < length; ++i) { |
c3ece7e7 PB |
432 | status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE, |
433 | buffer[i], (u16)(i + start_address), NULL, | |
434 | 0, TI_VSEND_TIMEOUT_DEFAULT); | |
1da177e4 LT |
435 | if (status) |
436 | return status; | |
437 | } | |
438 | ||
67e6da70 | 439 | dev_dbg(&serial->serial->dev->dev, "%s - start_sddr = %x, length = %d\n", __func__, start_address, length); |
59d33f2f | 440 | usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer); |
1da177e4 LT |
441 | |
442 | return status; | |
443 | } | |
444 | ||
1da177e4 | 445 | /* Write edgeport I2C memory to TI chip */ |
2742fd88 AC |
446 | static int write_i2c_mem(struct edgeport_serial *serial, |
447 | int start_address, int length, __u8 address_type, __u8 *buffer) | |
1da177e4 | 448 | { |
67e6da70 | 449 | struct device *dev = &serial->serial->dev->dev; |
1da177e4 LT |
450 | int status = 0; |
451 | int write_length; | |
5509076d | 452 | u16 be_start_address; |
1da177e4 LT |
453 | |
454 | /* We can only send a maximum of 1 aligned byte page at a time */ | |
2742fd88 | 455 | |
25985edc | 456 | /* calculate the number of bytes left in the first page */ |
2742fd88 AC |
457 | write_length = EPROM_PAGE_SIZE - |
458 | (start_address & (EPROM_PAGE_SIZE - 1)); | |
1da177e4 LT |
459 | |
460 | if (write_length > length) | |
461 | write_length = length; | |
462 | ||
67e6da70 GKH |
463 | dev_dbg(dev, "%s - BytesInFirstPage Addr = %x, length = %d\n", |
464 | __func__, start_address, write_length); | |
59d33f2f | 465 | usb_serial_debug_data(dev, __func__, write_length, buffer); |
1da177e4 | 466 | |
5509076d JH |
467 | /* |
468 | * Write first page. | |
469 | * | |
470 | * NOTE: Must use swab as wIndex is sent in little-endian byte order | |
471 | * regardless of host byte order. | |
472 | */ | |
473 | be_start_address = swab16((u16)start_address); | |
c3ece7e7 PB |
474 | status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE, |
475 | (u16)address_type, be_start_address, | |
476 | buffer, write_length, TI_VSEND_TIMEOUT_DEFAULT); | |
1da177e4 | 477 | if (status) { |
67e6da70 | 478 | dev_dbg(dev, "%s - ERROR %d\n", __func__, status); |
1da177e4 LT |
479 | return status; |
480 | } | |
481 | ||
482 | length -= write_length; | |
483 | start_address += write_length; | |
484 | buffer += write_length; | |
485 | ||
75899513 PB |
486 | /* |
487 | * We should be aligned now -- can write max page size bytes at a | |
488 | * time. | |
489 | */ | |
1da177e4 LT |
490 | while (length) { |
491 | if (length > EPROM_PAGE_SIZE) | |
492 | write_length = EPROM_PAGE_SIZE; | |
493 | else | |
494 | write_length = length; | |
495 | ||
67e6da70 GKH |
496 | dev_dbg(dev, "%s - Page Write Addr = %x, length = %d\n", |
497 | __func__, start_address, write_length); | |
59d33f2f | 498 | usb_serial_debug_data(dev, __func__, write_length, buffer); |
1da177e4 | 499 | |
5509076d JH |
500 | /* |
501 | * Write next page. | |
502 | * | |
503 | * NOTE: Must use swab as wIndex is sent in little-endian byte | |
504 | * order regardless of host byte order. | |
505 | */ | |
506 | be_start_address = swab16((u16)start_address); | |
2742fd88 | 507 | status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE, |
c3ece7e7 PB |
508 | (u16)address_type, be_start_address, buffer, |
509 | write_length, TI_VSEND_TIMEOUT_DEFAULT); | |
1da177e4 | 510 | if (status) { |
67e6da70 | 511 | dev_err(dev, "%s - ERROR %d\n", __func__, status); |
1da177e4 LT |
512 | return status; |
513 | } | |
2742fd88 | 514 | |
1da177e4 LT |
515 | length -= write_length; |
516 | start_address += write_length; | |
517 | buffer += write_length; | |
518 | } | |
519 | return status; | |
520 | } | |
521 | ||
75899513 PB |
522 | /* |
523 | * Examine the UMP DMA registers and LSR | |
2742fd88 | 524 | * |
1da177e4 LT |
525 | * Check the MSBit of the X and Y DMA byte count registers. |
526 | * A zero in this bit indicates that the TX DMA buffers are empty | |
527 | * then check the TX Empty bit in the UART. | |
528 | */ | |
2742fd88 | 529 | static int tx_active(struct edgeport_port *port) |
1da177e4 LT |
530 | { |
531 | int status; | |
532 | struct out_endpoint_desc_block *oedb; | |
533 | __u8 *lsr; | |
534 | int bytes_left = 0; | |
535 | ||
2742fd88 | 536 | oedb = kmalloc(sizeof(*oedb), GFP_KERNEL); |
10c642d0 | 537 | if (!oedb) |
1da177e4 | 538 | return -ENOMEM; |
1da177e4 | 539 | |
75899513 PB |
540 | /* |
541 | * Sigh, that's right, just one byte, as not all platforms can | |
542 | * do DMA from stack | |
543 | */ | |
544 | lsr = kmalloc(1, GFP_KERNEL); | |
1da177e4 LT |
545 | if (!lsr) { |
546 | kfree(oedb); | |
547 | return -ENOMEM; | |
548 | } | |
549 | /* Read the DMA Count Registers */ | |
2742fd88 AC |
550 | status = read_ram(port->port->serial->dev, port->dma_address, |
551 | sizeof(*oedb), (void *)oedb); | |
1da177e4 LT |
552 | if (status) |
553 | goto exit_is_tx_active; | |
554 | ||
67e6da70 | 555 | dev_dbg(&port->port->dev, "%s - XByteCount 0x%X\n", __func__, oedb->XByteCount); |
1da177e4 LT |
556 | |
557 | /* and the LSR */ | |
2742fd88 AC |
558 | status = read_ram(port->port->serial->dev, |
559 | port->uart_base + UMPMEM_OFFS_UART_LSR, 1, lsr); | |
1da177e4 LT |
560 | |
561 | if (status) | |
562 | goto exit_is_tx_active; | |
67e6da70 | 563 | dev_dbg(&port->port->dev, "%s - LSR = 0x%X\n", __func__, *lsr); |
2742fd88 | 564 | |
1da177e4 | 565 | /* If either buffer has data or we are transmitting then return TRUE */ |
2742fd88 | 566 | if ((oedb->XByteCount & 0x80) != 0) |
1da177e4 LT |
567 | bytes_left += 64; |
568 | ||
2742fd88 | 569 | if ((*lsr & UMP_UART_LSR_TX_MASK) == 0) |
1da177e4 LT |
570 | bytes_left += 1; |
571 | ||
572 | /* We return Not Active if we get any kind of error */ | |
573 | exit_is_tx_active: | |
67e6da70 | 574 | dev_dbg(&port->port->dev, "%s - return %d\n", __func__, bytes_left); |
1da177e4 LT |
575 | |
576 | kfree(lsr); | |
577 | kfree(oedb); | |
578 | return bytes_left; | |
579 | } | |
580 | ||
2742fd88 | 581 | static int choose_config(struct usb_device *dev) |
1da177e4 | 582 | { |
2742fd88 AC |
583 | /* |
584 | * There may be multiple configurations on this device, in which case | |
585 | * we would need to read and parse all of them to find out which one | |
586 | * we want. However, we just support one config at this point, | |
587 | * configuration # 1, which is Config Descriptor 0. | |
588 | */ | |
1da177e4 | 589 | |
67e6da70 GKH |
590 | dev_dbg(&dev->dev, "%s - Number of Interfaces = %d\n", |
591 | __func__, dev->config->desc.bNumInterfaces); | |
592 | dev_dbg(&dev->dev, "%s - MAX Power = %d\n", | |
593 | __func__, dev->config->desc.bMaxPower * 2); | |
1da177e4 LT |
594 | |
595 | if (dev->config->desc.bNumInterfaces != 1) { | |
67e6da70 | 596 | dev_err(&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n", __func__); |
1da177e4 LT |
597 | return -ENODEV; |
598 | } | |
599 | ||
600 | return 0; | |
601 | } | |
602 | ||
2742fd88 AC |
603 | static int read_rom(struct edgeport_serial *serial, |
604 | int start_address, int length, __u8 *buffer) | |
1da177e4 LT |
605 | { |
606 | int status; | |
607 | ||
608 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { | |
2742fd88 | 609 | status = read_download_mem(serial->serial->dev, |
1da177e4 LT |
610 | start_address, |
611 | length, | |
612 | serial->TI_I2C_Type, | |
613 | buffer); | |
614 | } else { | |
2742fd88 AC |
615 | status = read_boot_mem(serial, start_address, length, |
616 | buffer); | |
1da177e4 | 617 | } |
1da177e4 LT |
618 | return status; |
619 | } | |
620 | ||
2742fd88 AC |
621 | static int write_rom(struct edgeport_serial *serial, int start_address, |
622 | int length, __u8 *buffer) | |
1da177e4 LT |
623 | { |
624 | if (serial->product_info.TiMode == TI_MODE_BOOT) | |
2742fd88 AC |
625 | return write_boot_mem(serial, start_address, length, |
626 | buffer); | |
1da177e4 LT |
627 | |
628 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) | |
2742fd88 AC |
629 | return write_i2c_mem(serial, start_address, length, |
630 | serial->TI_I2C_Type, buffer); | |
1da177e4 LT |
631 | return -EINVAL; |
632 | } | |
633 | ||
1da177e4 | 634 | /* Read a descriptor header from I2C based on type */ |
2742fd88 AC |
635 | static int get_descriptor_addr(struct edgeport_serial *serial, |
636 | int desc_type, struct ti_i2c_desc *rom_desc) | |
1da177e4 LT |
637 | { |
638 | int start_address; | |
639 | int status; | |
640 | ||
641 | /* Search for requested descriptor in I2C */ | |
642 | start_address = 2; | |
643 | do { | |
2742fd88 | 644 | status = read_rom(serial, |
1da177e4 LT |
645 | start_address, |
646 | sizeof(struct ti_i2c_desc), | |
2742fd88 | 647 | (__u8 *)rom_desc); |
1da177e4 LT |
648 | if (status) |
649 | return 0; | |
650 | ||
651 | if (rom_desc->Type == desc_type) | |
652 | return start_address; | |
653 | ||
5509076d JH |
654 | start_address = start_address + sizeof(struct ti_i2c_desc) + |
655 | le16_to_cpu(rom_desc->Size); | |
1da177e4 LT |
656 | |
657 | } while ((start_address < TI_MAX_I2C_SIZE) && rom_desc->Type); | |
2742fd88 | 658 | |
1da177e4 LT |
659 | return 0; |
660 | } | |
661 | ||
662 | /* Validate descriptor checksum */ | |
2742fd88 | 663 | static int valid_csum(struct ti_i2c_desc *rom_desc, __u8 *buffer) |
1da177e4 LT |
664 | { |
665 | __u16 i; | |
666 | __u8 cs = 0; | |
667 | ||
5509076d | 668 | for (i = 0; i < le16_to_cpu(rom_desc->Size); i++) |
1da177e4 | 669 | cs = (__u8)(cs + buffer[i]); |
2742fd88 | 670 | |
1da177e4 | 671 | if (cs != rom_desc->CheckSum) { |
67e6da70 | 672 | pr_debug("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs); |
1da177e4 LT |
673 | return -EINVAL; |
674 | } | |
675 | return 0; | |
676 | } | |
677 | ||
678 | /* Make sure that the I2C image is good */ | |
2742fd88 | 679 | static int check_i2c_image(struct edgeport_serial *serial) |
1da177e4 LT |
680 | { |
681 | struct device *dev = &serial->serial->dev->dev; | |
682 | int status = 0; | |
683 | struct ti_i2c_desc *rom_desc; | |
684 | int start_address = 2; | |
685 | __u8 *buffer; | |
686 | __u16 ttype; | |
687 | ||
2742fd88 | 688 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
10c642d0 | 689 | if (!rom_desc) |
1da177e4 | 690 | return -ENOMEM; |
10c642d0 | 691 | |
2742fd88 | 692 | buffer = kmalloc(TI_MAX_I2C_SIZE, GFP_KERNEL); |
1da177e4 | 693 | if (!buffer) { |
2742fd88 | 694 | kfree(rom_desc); |
1da177e4 LT |
695 | return -ENOMEM; |
696 | } | |
697 | ||
2742fd88 AC |
698 | /* Read the first byte (Signature0) must be 0x52 or 0x10 */ |
699 | status = read_rom(serial, 0, 1, buffer); | |
1da177e4 | 700 | if (status) |
2742fd88 | 701 | goto out; |
1da177e4 LT |
702 | |
703 | if (*buffer != UMP5152 && *buffer != UMP3410) { | |
2742fd88 | 704 | dev_err(dev, "%s - invalid buffer signature\n", __func__); |
1da177e4 | 705 | status = -ENODEV; |
2742fd88 | 706 | goto out; |
1da177e4 LT |
707 | } |
708 | ||
709 | do { | |
2742fd88 AC |
710 | /* Validate the I2C */ |
711 | status = read_rom(serial, | |
1da177e4 LT |
712 | start_address, |
713 | sizeof(struct ti_i2c_desc), | |
714 | (__u8 *)rom_desc); | |
715 | if (status) | |
716 | break; | |
717 | ||
2742fd88 | 718 | if ((start_address + sizeof(struct ti_i2c_desc) + |
5509076d | 719 | le16_to_cpu(rom_desc->Size)) > TI_MAX_I2C_SIZE) { |
1da177e4 | 720 | status = -ENODEV; |
67e6da70 | 721 | dev_dbg(dev, "%s - structure too big, erroring out.\n", __func__); |
1da177e4 LT |
722 | break; |
723 | } | |
724 | ||
67e6da70 | 725 | dev_dbg(dev, "%s Type = 0x%x\n", __func__, rom_desc->Type); |
1da177e4 | 726 | |
2742fd88 | 727 | /* Skip type 2 record */ |
1da177e4 | 728 | ttype = rom_desc->Type & 0x0f; |
2742fd88 AC |
729 | if (ttype != I2C_DESC_TYPE_FIRMWARE_BASIC |
730 | && ttype != I2C_DESC_TYPE_FIRMWARE_AUTO) { | |
731 | /* Read the descriptor data */ | |
732 | status = read_rom(serial, start_address + | |
733 | sizeof(struct ti_i2c_desc), | |
5509076d JH |
734 | le16_to_cpu(rom_desc->Size), |
735 | buffer); | |
1da177e4 LT |
736 | if (status) |
737 | break; | |
738 | ||
2742fd88 | 739 | status = valid_csum(rom_desc, buffer); |
1da177e4 LT |
740 | if (status) |
741 | break; | |
742 | } | |
2742fd88 | 743 | start_address = start_address + sizeof(struct ti_i2c_desc) + |
5509076d | 744 | le16_to_cpu(rom_desc->Size); |
1da177e4 | 745 | |
2742fd88 AC |
746 | } while ((rom_desc->Type != I2C_DESC_TYPE_ION) && |
747 | (start_address < TI_MAX_I2C_SIZE)); | |
1da177e4 | 748 | |
2742fd88 AC |
749 | if ((rom_desc->Type != I2C_DESC_TYPE_ION) || |
750 | (start_address > TI_MAX_I2C_SIZE)) | |
1da177e4 LT |
751 | status = -ENODEV; |
752 | ||
2742fd88 AC |
753 | out: |
754 | kfree(buffer); | |
755 | kfree(rom_desc); | |
1da177e4 LT |
756 | return status; |
757 | } | |
758 | ||
2742fd88 | 759 | static int get_manuf_info(struct edgeport_serial *serial, __u8 *buffer) |
1da177e4 LT |
760 | { |
761 | int status; | |
762 | int start_address; | |
763 | struct ti_i2c_desc *rom_desc; | |
764 | struct edge_ti_manuf_descriptor *desc; | |
67e6da70 | 765 | struct device *dev = &serial->serial->dev->dev; |
1da177e4 | 766 | |
2742fd88 | 767 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
10c642d0 | 768 | if (!rom_desc) |
1da177e4 | 769 | return -ENOMEM; |
10c642d0 | 770 | |
2742fd88 AC |
771 | start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_ION, |
772 | rom_desc); | |
1da177e4 LT |
773 | |
774 | if (!start_address) { | |
67e6da70 | 775 | dev_dbg(dev, "%s - Edge Descriptor not found in I2C\n", __func__); |
1da177e4 LT |
776 | status = -ENODEV; |
777 | goto exit; | |
778 | } | |
779 | ||
2742fd88 AC |
780 | /* Read the descriptor data */ |
781 | status = read_rom(serial, start_address+sizeof(struct ti_i2c_desc), | |
5509076d | 782 | le16_to_cpu(rom_desc->Size), buffer); |
1da177e4 LT |
783 | if (status) |
784 | goto exit; | |
2742fd88 AC |
785 | |
786 | status = valid_csum(rom_desc, buffer); | |
787 | ||
1da177e4 | 788 | desc = (struct edge_ti_manuf_descriptor *)buffer; |
67e6da70 GKH |
789 | dev_dbg(dev, "%s - IonConfig 0x%x\n", __func__, desc->IonConfig); |
790 | dev_dbg(dev, "%s - Version %d\n", __func__, desc->Version); | |
791 | dev_dbg(dev, "%s - Cpu/Board 0x%x\n", __func__, desc->CpuRev_BoardRev); | |
792 | dev_dbg(dev, "%s - NumPorts %d\n", __func__, desc->NumPorts); | |
793 | dev_dbg(dev, "%s - NumVirtualPorts %d\n", __func__, desc->NumVirtualPorts); | |
794 | dev_dbg(dev, "%s - TotalPorts %d\n", __func__, desc->TotalPorts); | |
1da177e4 LT |
795 | |
796 | exit: | |
2742fd88 | 797 | kfree(rom_desc); |
1da177e4 LT |
798 | return status; |
799 | } | |
800 | ||
801 | /* Build firmware header used for firmware update */ | |
277bf37b | 802 | static int build_i2c_fw_hdr(u8 *header, const struct firmware *fw) |
1da177e4 LT |
803 | { |
804 | __u8 *buffer; | |
805 | int buffer_size; | |
806 | int i; | |
807 | __u8 cs = 0; | |
808 | struct ti_i2c_desc *i2c_header; | |
809 | struct ti_i2c_image_header *img_header; | |
810 | struct ti_i2c_firmware_rec *firmware_rec; | |
c0e34831 | 811 | struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data; |
1da177e4 | 812 | |
75899513 PB |
813 | /* |
814 | * In order to update the I2C firmware we must change the type 2 record | |
2742fd88 AC |
815 | * to type 0xF2. This will force the UMP to come up in Boot Mode. |
816 | * Then while in boot mode, the driver will download the latest | |
817 | * firmware (padded to 15.5k) into the UMP ram. And finally when the | |
818 | * device comes back up in download mode the driver will cause the new | |
819 | * firmware to be copied from the UMP Ram to I2C and the firmware will | |
820 | * update the record type from 0xf2 to 0x02. | |
821 | */ | |
822 | ||
75899513 PB |
823 | /* |
824 | * Allocate a 15.5k buffer + 2 bytes for version number (Firmware | |
825 | * Record) | |
826 | */ | |
2742fd88 AC |
827 | buffer_size = (((1024 * 16) - 512 ) + |
828 | sizeof(struct ti_i2c_firmware_rec)); | |
829 | ||
830 | buffer = kmalloc(buffer_size, GFP_KERNEL); | |
10c642d0 | 831 | if (!buffer) |
1da177e4 | 832 | return -ENOMEM; |
2742fd88 | 833 | |
75899513 | 834 | /* Set entire image of 0xffs */ |
2742fd88 | 835 | memset(buffer, 0xff, buffer_size); |
1da177e4 | 836 | |
2742fd88 | 837 | /* Copy version number into firmware record */ |
1da177e4 LT |
838 | firmware_rec = (struct ti_i2c_firmware_rec *)buffer; |
839 | ||
c0e34831 PB |
840 | firmware_rec->Ver_Major = fw_hdr->major_version; |
841 | firmware_rec->Ver_Minor = fw_hdr->minor_version; | |
1da177e4 | 842 | |
2742fd88 | 843 | /* Pointer to fw_down memory image */ |
d12b219a | 844 | img_header = (struct ti_i2c_image_header *)&fw->data[4]; |
1da177e4 | 845 | |
2742fd88 | 846 | memcpy(buffer + sizeof(struct ti_i2c_firmware_rec), |
d12b219a | 847 | &fw->data[4 + sizeof(struct ti_i2c_image_header)], |
1da177e4 LT |
848 | le16_to_cpu(img_header->Length)); |
849 | ||
850 | for (i=0; i < buffer_size; i++) { | |
851 | cs = (__u8)(cs + buffer[i]); | |
852 | } | |
853 | ||
2742fd88 | 854 | kfree(buffer); |
1da177e4 | 855 | |
2742fd88 | 856 | /* Build new header */ |
1da177e4 LT |
857 | i2c_header = (struct ti_i2c_desc *)header; |
858 | firmware_rec = (struct ti_i2c_firmware_rec*)i2c_header->Data; | |
2742fd88 | 859 | |
1da177e4 | 860 | i2c_header->Type = I2C_DESC_TYPE_FIRMWARE_BLANK; |
c03890ff | 861 | i2c_header->Size = cpu_to_le16(buffer_size); |
1da177e4 | 862 | i2c_header->CheckSum = cs; |
c0e34831 PB |
863 | firmware_rec->Ver_Major = fw_hdr->major_version; |
864 | firmware_rec->Ver_Minor = fw_hdr->minor_version; | |
1da177e4 LT |
865 | |
866 | return 0; | |
867 | } | |
868 | ||
869 | /* Try to figure out what type of I2c we have */ | |
2742fd88 | 870 | static int i2c_type_bootmode(struct edgeport_serial *serial) |
1da177e4 | 871 | { |
67e6da70 | 872 | struct device *dev = &serial->serial->dev->dev; |
1da177e4 | 873 | int status; |
e9305d2f JH |
874 | u8 *data; |
875 | ||
876 | data = kmalloc(1, GFP_KERNEL); | |
10c642d0 | 877 | if (!data) |
e9305d2f | 878 | return -ENOMEM; |
2742fd88 AC |
879 | |
880 | /* Try to read type 2 */ | |
881 | status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, | |
e9305d2f | 882 | DTK_ADDR_SPACE_I2C_TYPE_II, 0, data, 0x01); |
1da177e4 | 883 | if (status) |
67e6da70 | 884 | dev_dbg(dev, "%s - read 2 status error = %d\n", __func__, status); |
1da177e4 | 885 | else |
67e6da70 | 886 | dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data); |
e9305d2f | 887 | if ((!status) && (*data == UMP5152 || *data == UMP3410)) { |
67e6da70 | 888 | dev_dbg(dev, "%s - ROM_TYPE_II\n", __func__); |
1da177e4 | 889 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
e9305d2f | 890 | goto out; |
1da177e4 LT |
891 | } |
892 | ||
2742fd88 AC |
893 | /* Try to read type 3 */ |
894 | status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, | |
e9305d2f | 895 | DTK_ADDR_SPACE_I2C_TYPE_III, 0, data, 0x01); |
1da177e4 | 896 | if (status) |
67e6da70 | 897 | dev_dbg(dev, "%s - read 3 status error = %d\n", __func__, status); |
1da177e4 | 898 | else |
67e6da70 | 899 | dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data); |
e9305d2f | 900 | if ((!status) && (*data == UMP5152 || *data == UMP3410)) { |
67e6da70 | 901 | dev_dbg(dev, "%s - ROM_TYPE_III\n", __func__); |
1da177e4 | 902 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III; |
e9305d2f | 903 | goto out; |
1da177e4 LT |
904 | } |
905 | ||
67e6da70 | 906 | dev_dbg(dev, "%s - Unknown\n", __func__); |
1da177e4 | 907 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
e9305d2f JH |
908 | status = -ENODEV; |
909 | out: | |
910 | kfree(data); | |
911 | return status; | |
1da177e4 LT |
912 | } |
913 | ||
2742fd88 AC |
914 | static int bulk_xfer(struct usb_serial *serial, void *buffer, |
915 | int length, int *num_sent) | |
1da177e4 LT |
916 | { |
917 | int status; | |
918 | ||
2742fd88 AC |
919 | status = usb_bulk_msg(serial->dev, |
920 | usb_sndbulkpipe(serial->dev, | |
921 | serial->port[0]->bulk_out_endpointAddress), | |
922 | buffer, length, num_sent, 1000); | |
1da177e4 LT |
923 | return status; |
924 | } | |
925 | ||
926 | /* Download given firmware image to the device (IN BOOT MODE) */ | |
2742fd88 AC |
927 | static int download_code(struct edgeport_serial *serial, __u8 *image, |
928 | int image_length) | |
1da177e4 LT |
929 | { |
930 | int status = 0; | |
931 | int pos; | |
932 | int transfer; | |
933 | int done; | |
934 | ||
2742fd88 | 935 | /* Transfer firmware image */ |
1da177e4 | 936 | for (pos = 0; pos < image_length; ) { |
2742fd88 | 937 | /* Read the next buffer from file */ |
1da177e4 LT |
938 | transfer = image_length - pos; |
939 | if (transfer > EDGE_FW_BULK_MAX_PACKET_SIZE) | |
940 | transfer = EDGE_FW_BULK_MAX_PACKET_SIZE; | |
941 | ||
2742fd88 AC |
942 | /* Transfer data */ |
943 | status = bulk_xfer(serial->serial, &image[pos], | |
944 | transfer, &done); | |
1da177e4 LT |
945 | if (status) |
946 | break; | |
2742fd88 | 947 | /* Advance buffer pointer */ |
1da177e4 LT |
948 | pos += done; |
949 | } | |
950 | ||
951 | return status; | |
952 | } | |
953 | ||
2742fd88 AC |
954 | /* FIXME!!! */ |
955 | static int config_boot_dev(struct usb_device *dev) | |
1da177e4 LT |
956 | { |
957 | return 0; | |
958 | } | |
959 | ||
2742fd88 AC |
960 | static int ti_cpu_rev(struct edge_ti_manuf_descriptor *desc) |
961 | { | |
962 | return TI_GET_CPU_REVISION(desc->CpuRev_BoardRev); | |
963 | } | |
964 | ||
dcb8e99d PB |
965 | static int check_fw_sanity(struct edgeport_serial *serial, |
966 | const struct firmware *fw) | |
967 | { | |
968 | u16 length_total; | |
969 | u8 checksum = 0; | |
970 | int pos; | |
971 | struct device *dev = &serial->serial->interface->dev; | |
972 | struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data; | |
973 | ||
974 | if (fw->size < sizeof(struct edgeport_fw_hdr)) { | |
975 | dev_err(dev, "incomplete fw header\n"); | |
976 | return -EINVAL; | |
977 | } | |
978 | ||
979 | length_total = le16_to_cpu(fw_hdr->length) + | |
980 | sizeof(struct edgeport_fw_hdr); | |
981 | ||
982 | if (fw->size != length_total) { | |
983 | dev_err(dev, "bad fw size (expected: %u, got: %zu)\n", | |
984 | length_total, fw->size); | |
985 | return -EINVAL; | |
986 | } | |
987 | ||
988 | for (pos = sizeof(struct edgeport_fw_hdr); pos < fw->size; ++pos) | |
989 | checksum += fw->data[pos]; | |
990 | ||
991 | if (checksum != fw_hdr->checksum) { | |
992 | dev_err(dev, "bad fw checksum (expected: 0x%x, got: 0x%x)\n", | |
993 | fw_hdr->checksum, checksum); | |
994 | return -EINVAL; | |
995 | } | |
996 | ||
997 | return 0; | |
998 | } | |
999 | ||
75899513 | 1000 | /* |
1da177e4 | 1001 | * DownloadTIFirmware - Download run-time operating firmware to the TI5052 |
2742fd88 | 1002 | * |
1da177e4 LT |
1003 | * This routine downloads the main operating code into the TI5052, using the |
1004 | * boot code already burned into E2PROM or ROM. | |
1005 | */ | |
b4146162 | 1006 | static int download_fw(struct edgeport_serial *serial) |
1da177e4 | 1007 | { |
ef9324b2 | 1008 | struct device *dev = &serial->serial->interface->dev; |
1da177e4 | 1009 | int status = 0; |
1da177e4 | 1010 | struct usb_interface_descriptor *interface; |
b4146162 PB |
1011 | const struct firmware *fw; |
1012 | const char *fw_name = "edgeport/down3.bin"; | |
1013 | struct edgeport_fw_hdr *fw_hdr; | |
c0e34831 | 1014 | |
b4146162 PB |
1015 | status = request_firmware(&fw, fw_name, dev); |
1016 | if (status) { | |
1017 | dev_err(dev, "Failed to load image \"%s\" err %d\n", | |
1018 | fw_name, status); | |
1019 | return status; | |
1020 | } | |
1021 | ||
1022 | if (check_fw_sanity(serial, fw)) { | |
1023 | status = -EINVAL; | |
1024 | goto out; | |
1025 | } | |
c0e34831 | 1026 | |
b4146162 PB |
1027 | fw_hdr = (struct edgeport_fw_hdr *)fw->data; |
1028 | ||
1029 | /* If on-board version is newer, "fw_version" will be updated later. */ | |
c0e34831 PB |
1030 | serial->fw_version = (fw_hdr->major_version << 8) + |
1031 | fw_hdr->minor_version; | |
1da177e4 | 1032 | |
75899513 PB |
1033 | /* |
1034 | * This routine is entered by both the BOOT mode and the Download mode | |
1da177e4 LT |
1035 | * We can determine which code is running by the reading the config |
1036 | * descriptor and if we have only one bulk pipe it is in boot mode | |
1037 | */ | |
1038 | serial->product_info.hardware_type = HARDWARE_TYPE_TIUMP; | |
1039 | ||
1040 | /* Default to type 2 i2c */ | |
1041 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; | |
1042 | ||
2742fd88 | 1043 | status = choose_config(serial->serial->dev); |
1da177e4 | 1044 | if (status) |
b4146162 | 1045 | goto out; |
1da177e4 LT |
1046 | |
1047 | interface = &serial->serial->interface->cur_altsetting->desc; | |
1048 | if (!interface) { | |
2742fd88 | 1049 | dev_err(dev, "%s - no interface set, error!\n", __func__); |
b4146162 PB |
1050 | status = -ENODEV; |
1051 | goto out; | |
1da177e4 LT |
1052 | } |
1053 | ||
2742fd88 AC |
1054 | /* |
1055 | * Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING | |
1056 | * if we have more than one endpoint we are definitely in download | |
1057 | * mode | |
1058 | */ | |
bebf1f18 | 1059 | if (interface->bNumEndpoints > 1) { |
1da177e4 | 1060 | serial->product_info.TiMode = TI_MODE_DOWNLOAD; |
b4146162 PB |
1061 | status = do_download_mode(serial, fw); |
1062 | } else { | |
1063 | /* Otherwise we will remain in configuring mode */ | |
1064 | serial->product_info.TiMode = TI_MODE_CONFIGURING; | |
1065 | status = do_boot_mode(serial, fw); | |
bebf1f18 | 1066 | } |
1da177e4 | 1067 | |
b4146162 PB |
1068 | out: |
1069 | release_firmware(fw); | |
1070 | return status; | |
bebf1f18 | 1071 | } |
1da177e4 | 1072 | |
bebf1f18 PB |
1073 | static int do_download_mode(struct edgeport_serial *serial, |
1074 | const struct firmware *fw) | |
1075 | { | |
1076 | struct device *dev = &serial->serial->interface->dev; | |
1077 | int status = 0; | |
1078 | int start_address; | |
1079 | struct edge_ti_manuf_descriptor *ti_manuf_desc; | |
1080 | int download_cur_ver; | |
1081 | int download_new_ver; | |
1082 | struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data; | |
1083 | struct ti_i2c_desc *rom_desc; | |
2742fd88 | 1084 | |
bebf1f18 | 1085 | dev_dbg(dev, "%s - RUNNING IN DOWNLOAD MODE\n", __func__); |
10c642d0 | 1086 | |
bebf1f18 PB |
1087 | status = check_i2c_image(serial); |
1088 | if (status) { | |
1089 | dev_dbg(dev, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__); | |
1090 | return status; | |
1091 | } | |
1da177e4 | 1092 | |
75899513 PB |
1093 | /* |
1094 | * Validate Hardware version number | |
bebf1f18 PB |
1095 | * Read Manufacturing Descriptor from TI Based Edgeport |
1096 | */ | |
1097 | ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); | |
1098 | if (!ti_manuf_desc) | |
1099 | return -ENOMEM; | |
1100 | ||
1101 | status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); | |
1102 | if (status) { | |
1103 | kfree(ti_manuf_desc); | |
1104 | return status; | |
1105 | } | |
1106 | ||
1107 | /* Check version number of ION descriptor */ | |
1108 | if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { | |
1109 | dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n", | |
1110 | __func__, ti_cpu_rev(ti_manuf_desc)); | |
1111 | kfree(ti_manuf_desc); | |
1112 | return -EINVAL; | |
1113 | } | |
1114 | ||
1115 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); | |
1116 | if (!rom_desc) { | |
1117 | kfree(ti_manuf_desc); | |
1118 | return -ENOMEM; | |
1119 | } | |
1120 | ||
1121 | /* Search for type 2 record (firmware record) */ | |
1122 | start_address = get_descriptor_addr(serial, | |
1123 | I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc); | |
1124 | if (start_address != 0) { | |
1125 | struct ti_i2c_firmware_rec *firmware_version; | |
1126 | u8 *record; | |
1127 | ||
1128 | dev_dbg(dev, "%s - Found Type FIRMWARE (Type 2) record\n", | |
1129 | __func__); | |
1da177e4 | 1130 | |
bebf1f18 PB |
1131 | firmware_version = kmalloc(sizeof(*firmware_version), |
1132 | GFP_KERNEL); | |
1133 | if (!firmware_version) { | |
1134 | kfree(rom_desc); | |
2742fd88 | 1135 | kfree(ti_manuf_desc); |
1da177e4 LT |
1136 | return -ENOMEM; |
1137 | } | |
1138 | ||
75899513 PB |
1139 | /* |
1140 | * Validate version number | |
bebf1f18 PB |
1141 | * Read the descriptor data |
1142 | */ | |
1143 | status = read_rom(serial, start_address + | |
1144 | 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 | } | |
1da177e4 | 1153 | |
75899513 PB |
1154 | /* |
1155 | * Check version number of download with current | |
1156 | * version in I2c | |
1157 | */ | |
bebf1f18 PB |
1158 | download_cur_ver = (firmware_version->Ver_Major << 8) + |
1159 | (firmware_version->Ver_Minor); | |
1160 | download_new_ver = (fw_hdr->major_version << 8) + | |
1161 | (fw_hdr->minor_version); | |
1162 | ||
1163 | dev_dbg(dev, "%s - >> FW Versions Device %d.%d Driver %d.%d\n", | |
1164 | __func__, firmware_version->Ver_Major, | |
1165 | firmware_version->Ver_Minor, | |
1166 | fw_hdr->major_version, fw_hdr->minor_version); | |
1167 | ||
75899513 PB |
1168 | /* |
1169 | * Check if we have an old version in the I2C and | |
1170 | * update if necessary | |
1171 | */ | |
bebf1f18 PB |
1172 | if (download_cur_ver < download_new_ver) { |
1173 | dev_dbg(dev, "%s - Update I2C dld from %d.%d to %d.%d\n", | |
1174 | __func__, | |
1175 | firmware_version->Ver_Major, | |
1176 | firmware_version->Ver_Minor, | |
1177 | fw_hdr->major_version, | |
1178 | fw_hdr->minor_version); | |
1da177e4 | 1179 | |
bebf1f18 PB |
1180 | record = kmalloc(1, GFP_KERNEL); |
1181 | if (!record) { | |
1182 | kfree(firmware_version); | |
2742fd88 AC |
1183 | kfree(rom_desc); |
1184 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1185 | return -ENOMEM; |
1186 | } | |
bebf1f18 PB |
1187 | /* |
1188 | * In order to update the I2C firmware we must | |
1189 | * change the type 2 record to type 0xF2. This | |
1190 | * will force the UMP to come up in Boot Mode. | |
1191 | * Then while in boot mode, the driver will | |
1192 | * download the latest firmware (padded to | |
1193 | * 15.5k) into the UMP ram. Finally when the | |
1194 | * device comes back up in download mode the | |
1195 | * driver will cause the new firmware to be | |
1196 | * copied from the UMP Ram to I2C and the | |
1197 | * firmware will update the record type from | |
1198 | * 0xf2 to 0x02. | |
2742fd88 | 1199 | */ |
bebf1f18 PB |
1200 | *record = I2C_DESC_TYPE_FIRMWARE_BLANK; |
1201 | ||
75899513 PB |
1202 | /* |
1203 | * Change the I2C Firmware record type to | |
1204 | * 0xf2 to trigger an update | |
1205 | */ | |
bebf1f18 PB |
1206 | status = write_rom(serial, start_address, |
1207 | sizeof(*record), record); | |
1da177e4 | 1208 | if (status) { |
bebf1f18 | 1209 | kfree(record); |
2742fd88 AC |
1210 | kfree(firmware_version); |
1211 | kfree(rom_desc); | |
1212 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1213 | return status; |
1214 | } | |
1215 | ||
75899513 PB |
1216 | /* |
1217 | * verify the write -- must do this in order | |
bebf1f18 PB |
1218 | * for write to complete before we do the |
1219 | * hardware reset | |
1220 | */ | |
1221 | status = read_rom(serial, | |
1222 | start_address, | |
1223 | sizeof(*record), | |
1224 | record); | |
1225 | if (status) { | |
1226 | kfree(record); | |
1227 | kfree(firmware_version); | |
1228 | kfree(rom_desc); | |
1229 | kfree(ti_manuf_desc); | |
1230 | return status; | |
1231 | } | |
1da177e4 | 1232 | |
bebf1f18 PB |
1233 | if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) { |
1234 | dev_err(dev, "%s - error resetting device\n", | |
1235 | __func__); | |
e9305d2f | 1236 | kfree(record); |
2742fd88 AC |
1237 | kfree(firmware_version); |
1238 | kfree(rom_desc); | |
1239 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1240 | return -ENODEV; |
1241 | } | |
bebf1f18 PB |
1242 | |
1243 | dev_dbg(dev, "%s - HARDWARE RESET\n", __func__); | |
1244 | ||
1245 | /* Reset UMP -- Back to BOOT MODE */ | |
1246 | status = ti_vsend_sync(serial->serial->dev, | |
1247 | UMPC_HARDWARE_RESET, | |
1248 | 0, 0, NULL, 0, | |
1249 | TI_VSEND_TIMEOUT_DEFAULT); | |
1250 | ||
1251 | dev_dbg(dev, "%s - HARDWARE RESET return %d\n", | |
1252 | __func__, status); | |
1253 | ||
1254 | /* return an error on purpose. */ | |
1255 | kfree(record); | |
2742fd88 | 1256 | kfree(firmware_version); |
bebf1f18 PB |
1257 | kfree(rom_desc); |
1258 | kfree(ti_manuf_desc); | |
1259 | return -ENODEV; | |
1da177e4 | 1260 | } |
bebf1f18 PB |
1261 | /* Same or newer fw version is already loaded */ |
1262 | serial->fw_version = download_cur_ver; | |
1263 | kfree(firmware_version); | |
1264 | } | |
1265 | /* Search for type 0xF2 record (firmware blank record) */ | |
1266 | else { | |
1267 | start_address = get_descriptor_addr(serial, | |
1268 | I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc); | |
1269 | if (start_address != 0) { | |
2742fd88 | 1270 | #define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \ |
bebf1f18 | 1271 | sizeof(struct ti_i2c_firmware_rec)) |
1da177e4 LT |
1272 | __u8 *header; |
1273 | __u8 *vheader; | |
1274 | ||
2742fd88 | 1275 | header = kmalloc(HEADER_SIZE, GFP_KERNEL); |
1da177e4 | 1276 | if (!header) { |
2742fd88 AC |
1277 | kfree(rom_desc); |
1278 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1279 | return -ENOMEM; |
1280 | } | |
2742fd88 AC |
1281 | |
1282 | vheader = kmalloc(HEADER_SIZE, GFP_KERNEL); | |
1da177e4 | 1283 | if (!vheader) { |
2742fd88 AC |
1284 | kfree(header); |
1285 | kfree(rom_desc); | |
1286 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1287 | return -ENOMEM; |
1288 | } | |
2742fd88 | 1289 | |
bebf1f18 PB |
1290 | dev_dbg(dev, "%s - Found Type BLANK FIRMWARE (Type F2) record\n", |
1291 | __func__); | |
2742fd88 AC |
1292 | |
1293 | /* | |
1294 | * In order to update the I2C firmware we must change | |
1295 | * the type 2 record to type 0xF2. This will force the | |
1296 | * UMP to come up in Boot Mode. Then while in boot | |
1297 | * mode, the driver will download the latest firmware | |
1298 | * (padded to 15.5k) into the UMP ram. Finally when the | |
1299 | * device comes back up in download mode the driver | |
1300 | * will cause the new firmware to be copied from the | |
1301 | * UMP Ram to I2C and the firmware will update the | |
1302 | * record type from 0xf2 to 0x02. | |
1303 | */ | |
277bf37b | 1304 | status = build_i2c_fw_hdr(header, fw); |
1da177e4 | 1305 | if (status) { |
2742fd88 AC |
1306 | kfree(vheader); |
1307 | kfree(header); | |
1308 | kfree(rom_desc); | |
1309 | kfree(ti_manuf_desc); | |
fd6e5bbb | 1310 | return -EINVAL; |
1da177e4 LT |
1311 | } |
1312 | ||
75899513 PB |
1313 | /* |
1314 | * Update I2C with type 0xf2 record with correct | |
1315 | * size and checksum | |
1316 | */ | |
2742fd88 | 1317 | status = write_rom(serial, |
1da177e4 LT |
1318 | start_address, |
1319 | HEADER_SIZE, | |
1320 | header); | |
1321 | if (status) { | |
2742fd88 AC |
1322 | kfree(vheader); |
1323 | kfree(header); | |
1324 | kfree(rom_desc); | |
1325 | kfree(ti_manuf_desc); | |
9800eb33 | 1326 | return -EINVAL; |
1da177e4 LT |
1327 | } |
1328 | ||
75899513 PB |
1329 | /* |
1330 | * verify the write -- must do this in order for | |
1331 | * write to complete before we do the hardware reset | |
1332 | */ | |
2742fd88 AC |
1333 | status = read_rom(serial, start_address, |
1334 | HEADER_SIZE, vheader); | |
1da177e4 LT |
1335 | |
1336 | if (status) { | |
bebf1f18 PB |
1337 | dev_dbg(dev, "%s - can't read header back\n", |
1338 | __func__); | |
2742fd88 AC |
1339 | kfree(vheader); |
1340 | kfree(header); | |
1341 | kfree(rom_desc); | |
1342 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1343 | return status; |
1344 | } | |
1345 | if (memcmp(vheader, header, HEADER_SIZE)) { | |
bebf1f18 PB |
1346 | dev_dbg(dev, "%s - write download record failed\n", |
1347 | __func__); | |
2742fd88 AC |
1348 | kfree(vheader); |
1349 | kfree(header); | |
1350 | kfree(rom_desc); | |
1351 | kfree(ti_manuf_desc); | |
1e29709e | 1352 | return -EINVAL; |
1da177e4 LT |
1353 | } |
1354 | ||
2742fd88 AC |
1355 | kfree(vheader); |
1356 | kfree(header); | |
1da177e4 | 1357 | |
67e6da70 | 1358 | dev_dbg(dev, "%s - Start firmware update\n", __func__); |
1da177e4 | 1359 | |
2742fd88 AC |
1360 | /* Tell firmware to copy download image into I2C */ |
1361 | status = ti_vsend_sync(serial->serial->dev, | |
c3ece7e7 PB |
1362 | UMPC_COPY_DNLD_TO_I2C, |
1363 | 0, 0, NULL, 0, | |
1364 | TI_VSEND_TIMEOUT_FW_DOWNLOAD); | |
1da177e4 | 1365 | |
bebf1f18 PB |
1366 | dev_dbg(dev, "%s - Update complete 0x%x\n", __func__, |
1367 | status); | |
1da177e4 | 1368 | if (status) { |
2742fd88 AC |
1369 | dev_err(dev, |
1370 | "%s - UMPC_COPY_DNLD_TO_I2C failed\n", | |
bebf1f18 | 1371 | __func__); |
2742fd88 AC |
1372 | kfree(rom_desc); |
1373 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1374 | return status; |
1375 | } | |
1376 | } | |
1da177e4 LT |
1377 | } |
1378 | ||
bebf1f18 PB |
1379 | /* The device is running the download code */ |
1380 | kfree(rom_desc); | |
1381 | kfree(ti_manuf_desc); | |
1382 | return 0; | |
1383 | } | |
1384 | ||
1385 | static int do_boot_mode(struct edgeport_serial *serial, | |
1386 | const struct firmware *fw) | |
1387 | { | |
1388 | struct device *dev = &serial->serial->interface->dev; | |
1389 | int status = 0; | |
1390 | struct edge_ti_manuf_descriptor *ti_manuf_desc; | |
1391 | struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data; | |
1392 | ||
67e6da70 | 1393 | dev_dbg(dev, "%s - RUNNING IN BOOT MODE\n", __func__); |
1da177e4 | 1394 | |
2742fd88 AC |
1395 | /* Configure the TI device so we can use the BULK pipes for download */ |
1396 | status = config_boot_dev(serial->serial->dev); | |
1da177e4 LT |
1397 | if (status) |
1398 | return status; | |
1399 | ||
2742fd88 AC |
1400 | if (le16_to_cpu(serial->serial->dev->descriptor.idVendor) |
1401 | != USB_VENDOR_ID_ION) { | |
67e6da70 GKH |
1402 | dev_dbg(dev, "%s - VID = 0x%x\n", __func__, |
1403 | le16_to_cpu(serial->serial->dev->descriptor.idVendor)); | |
1da177e4 | 1404 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
2742fd88 | 1405 | goto stayinbootmode; |
1da177e4 LT |
1406 | } |
1407 | ||
75899513 PB |
1408 | /* |
1409 | * We have an ION device (I2c Must be programmed) | |
1410 | * Determine I2C image type | |
1411 | */ | |
2742fd88 AC |
1412 | if (i2c_type_bootmode(serial)) |
1413 | goto stayinbootmode; | |
1da177e4 | 1414 | |
2742fd88 AC |
1415 | /* Check for ION Vendor ID and that the I2C is valid */ |
1416 | if (!check_i2c_image(serial)) { | |
1da177e4 LT |
1417 | struct ti_i2c_image_header *header; |
1418 | int i; | |
1419 | __u8 cs = 0; | |
1420 | __u8 *buffer; | |
1421 | int buffer_size; | |
1422 | ||
75899513 PB |
1423 | /* |
1424 | * Validate Hardware version number | |
1da177e4 LT |
1425 | * Read Manufacturing Descriptor from TI Based Edgeport |
1426 | */ | |
2742fd88 | 1427 | ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); |
10c642d0 | 1428 | if (!ti_manuf_desc) |
1da177e4 | 1429 | return -ENOMEM; |
10c642d0 | 1430 | |
2742fd88 | 1431 | status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); |
1da177e4 | 1432 | if (status) { |
2742fd88 AC |
1433 | kfree(ti_manuf_desc); |
1434 | goto stayinbootmode; | |
1da177e4 LT |
1435 | } |
1436 | ||
2742fd88 AC |
1437 | /* Check for version 2 */ |
1438 | if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { | |
67e6da70 GKH |
1439 | dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n", |
1440 | __func__, ti_cpu_rev(ti_manuf_desc)); | |
2742fd88 AC |
1441 | kfree(ti_manuf_desc); |
1442 | goto stayinbootmode; | |
1da177e4 LT |
1443 | } |
1444 | ||
2742fd88 | 1445 | kfree(ti_manuf_desc); |
1da177e4 | 1446 | |
1da177e4 | 1447 | /* |
2742fd88 AC |
1448 | * In order to update the I2C firmware we must change the type |
1449 | * 2 record to type 0xF2. This will force the UMP to come up | |
1450 | * in Boot Mode. Then while in boot mode, the driver will | |
1451 | * download the latest firmware (padded to 15.5k) into the | |
1452 | * UMP ram. Finally when the device comes back up in download | |
1453 | * mode the driver will cause the new firmware to be copied | |
1454 | * from the UMP Ram to I2C and the firmware will update the | |
1455 | * record type from 0xf2 to 0x02. | |
1456 | * | |
1da177e4 LT |
1457 | * Do we really have to copy the whole firmware image, |
1458 | * or could we do this in place! | |
1459 | */ | |
1460 | ||
2742fd88 AC |
1461 | /* Allocate a 15.5k buffer + 3 byte header */ |
1462 | buffer_size = (((1024 * 16) - 512) + | |
1463 | sizeof(struct ti_i2c_image_header)); | |
1464 | buffer = kmalloc(buffer_size, GFP_KERNEL); | |
10c642d0 | 1465 | if (!buffer) |
1da177e4 | 1466 | return -ENOMEM; |
2742fd88 AC |
1467 | |
1468 | /* Initialize the buffer to 0xff (pad the buffer) */ | |
1469 | memset(buffer, 0xff, buffer_size); | |
d12b219a | 1470 | memcpy(buffer, &fw->data[4], fw->size - 4); |
1da177e4 | 1471 | |
2742fd88 AC |
1472 | for (i = sizeof(struct ti_i2c_image_header); |
1473 | i < buffer_size; i++) { | |
1da177e4 LT |
1474 | cs = (__u8)(cs + buffer[i]); |
1475 | } | |
2742fd88 | 1476 | |
1da177e4 | 1477 | header = (struct ti_i2c_image_header *)buffer; |
2742fd88 AC |
1478 | |
1479 | /* update length and checksum after padding */ | |
1480 | header->Length = cpu_to_le16((__u16)(buffer_size - | |
1481 | sizeof(struct ti_i2c_image_header))); | |
1da177e4 LT |
1482 | header->CheckSum = cs; |
1483 | ||
2742fd88 | 1484 | /* Download the operational code */ |
c0e34831 PB |
1485 | dev_dbg(dev, "%s - Downloading operational code image version %d.%d (TI UMP)\n", |
1486 | __func__, | |
1487 | fw_hdr->major_version, fw_hdr->minor_version); | |
2742fd88 | 1488 | status = download_code(serial, buffer, buffer_size); |
1da177e4 | 1489 | |
2742fd88 | 1490 | kfree(buffer); |
1da177e4 LT |
1491 | |
1492 | if (status) { | |
67e6da70 | 1493 | dev_dbg(dev, "%s - Error downloading operational code image\n", __func__); |
1da177e4 LT |
1494 | return status; |
1495 | } | |
1496 | ||
2742fd88 | 1497 | /* Device will reboot */ |
1da177e4 LT |
1498 | serial->product_info.TiMode = TI_MODE_TRANSITIONING; |
1499 | ||
67e6da70 | 1500 | dev_dbg(dev, "%s - Download successful -- Device rebooting...\n", __func__); |
1da177e4 | 1501 | |
e35d6d7c | 1502 | return 1; |
1da177e4 LT |
1503 | } |
1504 | ||
2742fd88 AC |
1505 | stayinbootmode: |
1506 | /* Eprom is invalid or blank stay in boot mode */ | |
67e6da70 | 1507 | dev_dbg(dev, "%s - STAYING IN BOOT MODE\n", __func__); |
1da177e4 LT |
1508 | serial->product_info.TiMode = TI_MODE_BOOT; |
1509 | ||
4f9785cc | 1510 | return 1; |
1da177e4 LT |
1511 | } |
1512 | ||
2742fd88 | 1513 | static int ti_do_config(struct edgeport_port *port, int feature, int on) |
1da177e4 | 1514 | { |
1143832e GKH |
1515 | int port_number = port->port->port_number; |
1516 | ||
2742fd88 AC |
1517 | on = !!on; /* 1 or 0 not bitmask */ |
1518 | return send_cmd(port->port->serial->dev, | |
1519 | feature, (__u8)(UMPM_UART1_PORT + port_number), | |
1520 | on, NULL, 0); | |
1da177e4 LT |
1521 | } |
1522 | ||
2742fd88 | 1523 | static int restore_mcr(struct edgeport_port *port, __u8 mcr) |
1da177e4 LT |
1524 | { |
1525 | int status = 0; | |
1526 | ||
67e6da70 | 1527 | dev_dbg(&port->port->dev, "%s - %x\n", __func__, mcr); |
1da177e4 | 1528 | |
2742fd88 | 1529 | status = ti_do_config(port, UMPC_SET_CLR_DTR, mcr & MCR_DTR); |
1da177e4 LT |
1530 | if (status) |
1531 | return status; | |
2742fd88 | 1532 | status = ti_do_config(port, UMPC_SET_CLR_RTS, mcr & MCR_RTS); |
1da177e4 LT |
1533 | if (status) |
1534 | return status; | |
2742fd88 | 1535 | return ti_do_config(port, UMPC_SET_CLR_LOOPBACK, mcr & MCR_LOOPBACK); |
1da177e4 LT |
1536 | } |
1537 | ||
1da177e4 | 1538 | /* Convert TI LSR to standard UART flags */ |
2742fd88 | 1539 | static __u8 map_line_status(__u8 ti_lsr) |
1da177e4 LT |
1540 | { |
1541 | __u8 lsr = 0; | |
1542 | ||
1543 | #define MAP_FLAG(flagUmp, flagUart) \ | |
1544 | if (ti_lsr & flagUmp) \ | |
1545 | lsr |= flagUart; | |
1546 | ||
1547 | MAP_FLAG(UMP_UART_LSR_OV_MASK, LSR_OVER_ERR) /* overrun */ | |
1548 | MAP_FLAG(UMP_UART_LSR_PE_MASK, LSR_PAR_ERR) /* parity error */ | |
1549 | MAP_FLAG(UMP_UART_LSR_FE_MASK, LSR_FRM_ERR) /* framing error */ | |
1550 | MAP_FLAG(UMP_UART_LSR_BR_MASK, LSR_BREAK) /* break detected */ | |
2742fd88 AC |
1551 | MAP_FLAG(UMP_UART_LSR_RX_MASK, LSR_RX_AVAIL) /* rx data available */ |
1552 | MAP_FLAG(UMP_UART_LSR_TX_MASK, LSR_TX_EMPTY) /* tx hold reg empty */ | |
1da177e4 LT |
1553 | |
1554 | #undef MAP_FLAG | |
1555 | ||
1556 | return lsr; | |
1557 | } | |
1558 | ||
2742fd88 | 1559 | static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr) |
1da177e4 LT |
1560 | { |
1561 | struct async_icount *icount; | |
1562 | struct tty_struct *tty; | |
1563 | ||
67e6da70 | 1564 | dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, msr); |
1da177e4 | 1565 | |
2742fd88 AC |
1566 | if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | |
1567 | EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { | |
cf9a9d66 | 1568 | icount = &edge_port->port->icount; |
1da177e4 LT |
1569 | |
1570 | /* update input line counters */ | |
1571 | if (msr & EDGEPORT_MSR_DELTA_CTS) | |
1572 | icount->cts++; | |
1573 | if (msr & EDGEPORT_MSR_DELTA_DSR) | |
1574 | icount->dsr++; | |
1575 | if (msr & EDGEPORT_MSR_DELTA_CD) | |
1576 | icount->dcd++; | |
1577 | if (msr & EDGEPORT_MSR_DELTA_RI) | |
1578 | icount->rng++; | |
48ee5801 | 1579 | wake_up_interruptible(&edge_port->port->port.delta_msr_wait); |
1da177e4 LT |
1580 | } |
1581 | ||
1582 | /* Save the new modem status */ | |
1583 | edge_port->shadow_msr = msr & 0xf0; | |
1584 | ||
4a90f09b | 1585 | tty = tty_port_tty_get(&edge_port->port->port); |
1da177e4 LT |
1586 | /* handle CTS flow control */ |
1587 | if (tty && C_CRTSCTS(tty)) { | |
d95e3cae | 1588 | if (msr & EDGEPORT_MSR_CTS) |
1da177e4 | 1589 | tty_wakeup(tty); |
1da177e4 | 1590 | } |
4a90f09b | 1591 | tty_kref_put(tty); |
1da177e4 LT |
1592 | } |
1593 | ||
2742fd88 AC |
1594 | static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data, |
1595 | __u8 lsr, __u8 data) | |
1da177e4 LT |
1596 | { |
1597 | struct async_icount *icount; | |
2742fd88 AC |
1598 | __u8 new_lsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR | |
1599 | LSR_FRM_ERR | LSR_BREAK)); | |
1da177e4 | 1600 | |
67e6da70 | 1601 | dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr); |
1da177e4 LT |
1602 | |
1603 | edge_port->shadow_lsr = lsr; | |
1604 | ||
2742fd88 | 1605 | if (new_lsr & LSR_BREAK) |
1da177e4 LT |
1606 | /* |
1607 | * Parity and Framing errors only count if they | |
1608 | * occur exclusive of a break being received. | |
1609 | */ | |
1610 | new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK); | |
1da177e4 LT |
1611 | |
1612 | /* Place LSR data byte into Rx buffer */ | |
2e124b4a JS |
1613 | if (lsr_data) |
1614 | edge_tty_recv(edge_port->port, &data, 1); | |
1da177e4 LT |
1615 | |
1616 | /* update input line counters */ | |
cf9a9d66 | 1617 | icount = &edge_port->port->icount; |
1da177e4 LT |
1618 | if (new_lsr & LSR_BREAK) |
1619 | icount->brk++; | |
1620 | if (new_lsr & LSR_OVER_ERR) | |
1621 | icount->overrun++; | |
1622 | if (new_lsr & LSR_PAR_ERR) | |
1623 | icount->parity++; | |
1624 | if (new_lsr & LSR_FRM_ERR) | |
1625 | icount->frame++; | |
1626 | } | |
1627 | ||
2742fd88 | 1628 | static void edge_interrupt_callback(struct urb *urb) |
1da177e4 | 1629 | { |
cdc97792 | 1630 | struct edgeport_serial *edge_serial = urb->context; |
1da177e4 LT |
1631 | struct usb_serial_port *port; |
1632 | struct edgeport_port *edge_port; | |
67e6da70 | 1633 | struct device *dev; |
1da177e4 LT |
1634 | unsigned char *data = urb->transfer_buffer; |
1635 | int length = urb->actual_length; | |
1636 | int port_number; | |
1637 | int function; | |
ee337c21 | 1638 | int retval; |
1da177e4 LT |
1639 | __u8 lsr; |
1640 | __u8 msr; | |
ee337c21 | 1641 | int status = urb->status; |
1da177e4 | 1642 | |
ee337c21 | 1643 | switch (status) { |
1da177e4 LT |
1644 | case 0: |
1645 | /* success */ | |
1646 | break; | |
1647 | case -ECONNRESET: | |
1648 | case -ENOENT: | |
1649 | case -ESHUTDOWN: | |
1650 | /* this urb is terminated, clean up */ | |
67e6da70 | 1651 | dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", |
441b62c1 | 1652 | __func__, status); |
1da177e4 LT |
1653 | return; |
1654 | default: | |
ee337c21 | 1655 | dev_err(&urb->dev->dev, "%s - nonzero urb status received: " |
441b62c1 | 1656 | "%d\n", __func__, status); |
1da177e4 LT |
1657 | goto exit; |
1658 | } | |
1659 | ||
1660 | if (!length) { | |
67e6da70 | 1661 | dev_dbg(&urb->dev->dev, "%s - no data in urb\n", __func__); |
1da177e4 LT |
1662 | goto exit; |
1663 | } | |
2742fd88 | 1664 | |
67e6da70 | 1665 | dev = &edge_serial->serial->dev->dev; |
59d33f2f | 1666 | usb_serial_debug_data(dev, __func__, length, data); |
2742fd88 | 1667 | |
1da177e4 | 1668 | if (length != 2) { |
67e6da70 | 1669 | dev_dbg(dev, "%s - expecting packet of size 2, got %d\n", __func__, length); |
1da177e4 LT |
1670 | goto exit; |
1671 | } | |
1672 | ||
2742fd88 AC |
1673 | port_number = TIUMP_GET_PORT_FROM_CODE(data[0]); |
1674 | function = TIUMP_GET_FUNC_FROM_CODE(data[0]); | |
67e6da70 GKH |
1675 | dev_dbg(dev, "%s - port_number %d, function %d, info 0x%x\n", __func__, |
1676 | port_number, function, data[1]); | |
0b1d250a JH |
1677 | |
1678 | if (port_number >= edge_serial->serial->num_ports) { | |
1679 | dev_err(dev, "bad port number %d\n", port_number); | |
1680 | goto exit; | |
1681 | } | |
1682 | ||
1da177e4 LT |
1683 | port = edge_serial->serial->port[port_number]; |
1684 | edge_port = usb_get_serial_port_data(port); | |
1685 | if (!edge_port) { | |
67e6da70 | 1686 | dev_dbg(dev, "%s - edge_port not found\n", __func__); |
1da177e4 LT |
1687 | return; |
1688 | } | |
1689 | switch (function) { | |
1690 | case TIUMP_INTERRUPT_CODE_LSR: | |
2742fd88 | 1691 | lsr = map_line_status(data[1]); |
1da177e4 | 1692 | if (lsr & UMP_UART_LSR_DATA_MASK) { |
75899513 PB |
1693 | /* |
1694 | * Save the LSR event for bulk read completion routine | |
1695 | */ | |
67e6da70 GKH |
1696 | dev_dbg(dev, "%s - LSR Event Port %u LSR Status = %02x\n", |
1697 | __func__, port_number, lsr); | |
1da177e4 LT |
1698 | edge_port->lsr_event = 1; |
1699 | edge_port->lsr_mask = lsr; | |
1700 | } else { | |
67e6da70 GKH |
1701 | dev_dbg(dev, "%s - ===== Port %d LSR Status = %02x ======\n", |
1702 | __func__, port_number, lsr); | |
2742fd88 | 1703 | handle_new_lsr(edge_port, 0, lsr, 0); |
1da177e4 LT |
1704 | } |
1705 | break; | |
1706 | ||
2742fd88 | 1707 | case TIUMP_INTERRUPT_CODE_MSR: /* MSR */ |
1da177e4 LT |
1708 | /* Copy MSR from UMP */ |
1709 | msr = data[1]; | |
67e6da70 GKH |
1710 | dev_dbg(dev, "%s - ===== Port %u MSR Status = %02x ======\n", |
1711 | __func__, port_number, msr); | |
2742fd88 | 1712 | handle_new_msr(edge_port, msr); |
1da177e4 LT |
1713 | break; |
1714 | ||
1715 | default: | |
2742fd88 AC |
1716 | dev_err(&urb->dev->dev, |
1717 | "%s - Unknown Interrupt code from UMP %x\n", | |
1718 | __func__, data[1]); | |
1da177e4 | 1719 | break; |
2742fd88 | 1720 | |
1da177e4 LT |
1721 | } |
1722 | ||
1723 | exit: | |
2742fd88 | 1724 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
ee337c21 | 1725 | if (retval) |
2742fd88 AC |
1726 | dev_err(&urb->dev->dev, |
1727 | "%s - usb_submit_urb failed with result %d\n", | |
441b62c1 | 1728 | __func__, retval); |
1da177e4 LT |
1729 | } |
1730 | ||
2742fd88 | 1731 | static void edge_bulk_in_callback(struct urb *urb) |
1da177e4 | 1732 | { |
cdc97792 | 1733 | struct edgeport_port *edge_port = urb->context; |
67e6da70 | 1734 | struct device *dev = &edge_port->port->dev; |
1da177e4 | 1735 | unsigned char *data = urb->transfer_buffer; |
ee337c21 | 1736 | int retval = 0; |
1da177e4 | 1737 | int port_number; |
ee337c21 | 1738 | int status = urb->status; |
1da177e4 | 1739 | |
ee337c21 | 1740 | switch (status) { |
1da177e4 LT |
1741 | case 0: |
1742 | /* success */ | |
1743 | break; | |
1744 | case -ECONNRESET: | |
1745 | case -ENOENT: | |
1746 | case -ESHUTDOWN: | |
1747 | /* this urb is terminated, clean up */ | |
67e6da70 | 1748 | dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", __func__, status); |
1da177e4 LT |
1749 | return; |
1750 | default: | |
67e6da70 | 1751 | dev_err(&urb->dev->dev, "%s - nonzero read bulk status received: %d\n", __func__, status); |
1da177e4 LT |
1752 | } |
1753 | ||
ee337c21 | 1754 | if (status == -EPIPE) |
1da177e4 LT |
1755 | goto exit; |
1756 | ||
ee337c21 | 1757 | if (status) { |
2742fd88 | 1758 | dev_err(&urb->dev->dev, "%s - stopping read!\n", __func__); |
1da177e4 LT |
1759 | return; |
1760 | } | |
1761 | ||
1143832e | 1762 | port_number = edge_port->port->port_number; |
1da177e4 | 1763 | |
654b404f | 1764 | if (urb->actual_length > 0 && edge_port->lsr_event) { |
1da177e4 | 1765 | edge_port->lsr_event = 0; |
67e6da70 GKH |
1766 | dev_dbg(dev, "%s ===== Port %u LSR Status = %02x, Data = %02x ======\n", |
1767 | __func__, port_number, edge_port->lsr_mask, *data); | |
2742fd88 | 1768 | handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data); |
1da177e4 LT |
1769 | /* Adjust buffer length/pointer */ |
1770 | --urb->actual_length; | |
1771 | ++data; | |
1772 | } | |
1773 | ||
2e124b4a | 1774 | if (urb->actual_length) { |
59d33f2f | 1775 | usb_serial_debug_data(dev, __func__, urb->actual_length, data); |
2742fd88 | 1776 | if (edge_port->close_pending) |
67e6da70 | 1777 | dev_dbg(dev, "%s - close pending, dropping data on the floor\n", |
2742fd88 AC |
1778 | __func__); |
1779 | else | |
2e124b4a | 1780 | edge_tty_recv(edge_port->port, data, |
05c7cd39 | 1781 | urb->actual_length); |
cf9a9d66 | 1782 | edge_port->port->icount.rx += urb->actual_length; |
1da177e4 LT |
1783 | } |
1784 | ||
1785 | exit: | |
1786 | /* continue read unless stopped */ | |
1787 | spin_lock(&edge_port->ep_lock); | |
5833041f | 1788 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) |
ee337c21 | 1789 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
5833041f | 1790 | else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) |
1da177e4 | 1791 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED; |
5833041f | 1792 | |
1da177e4 | 1793 | spin_unlock(&edge_port->ep_lock); |
ee337c21 | 1794 | if (retval) |
67e6da70 | 1795 | dev_err(dev, "%s - usb_submit_urb failed with result %d\n", __func__, retval); |
1da177e4 LT |
1796 | } |
1797 | ||
2e124b4a JS |
1798 | static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data, |
1799 | int length) | |
1da177e4 | 1800 | { |
2742fd88 | 1801 | int queued; |
1da177e4 | 1802 | |
05c7cd39 | 1803 | queued = tty_insert_flip_string(&port->port, data, length); |
2742fd88 | 1804 | if (queued < length) |
05c7cd39 | 1805 | dev_err(&port->dev, "%s - dropping data, %d bytes lost\n", |
2742fd88 | 1806 | __func__, length - queued); |
2e124b4a | 1807 | tty_flip_buffer_push(&port->port); |
1da177e4 LT |
1808 | } |
1809 | ||
2742fd88 | 1810 | static void edge_bulk_out_callback(struct urb *urb) |
1da177e4 | 1811 | { |
cdc97792 | 1812 | struct usb_serial_port *port = urb->context; |
1da177e4 | 1813 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
ee337c21 | 1814 | int status = urb->status; |
4a90f09b | 1815 | struct tty_struct *tty; |
1da177e4 | 1816 | |
1da177e4 LT |
1817 | edge_port->ep_write_urb_in_use = 0; |
1818 | ||
ee337c21 | 1819 | switch (status) { |
1da177e4 LT |
1820 | case 0: |
1821 | /* success */ | |
1822 | break; | |
1823 | case -ECONNRESET: | |
1824 | case -ENOENT: | |
1825 | case -ESHUTDOWN: | |
1826 | /* this urb is terminated, clean up */ | |
67e6da70 | 1827 | dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", |
441b62c1 | 1828 | __func__, status); |
1da177e4 LT |
1829 | return; |
1830 | default: | |
22a416c4 | 1831 | dev_err_console(port, "%s - nonzero write bulk status " |
441b62c1 | 1832 | "received: %d\n", __func__, status); |
1da177e4 LT |
1833 | } |
1834 | ||
1835 | /* send any buffered data */ | |
4a90f09b | 1836 | tty = tty_port_tty_get(&port->port); |
ae3759c2 | 1837 | edge_send(port, tty); |
4a90f09b | 1838 | tty_kref_put(tty); |
1da177e4 LT |
1839 | } |
1840 | ||
a509a7e4 | 1841 | static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) |
1da177e4 LT |
1842 | { |
1843 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
1844 | struct edgeport_serial *edge_serial; | |
1845 | struct usb_device *dev; | |
1846 | struct urb *urb; | |
1847 | int port_number; | |
1848 | int status; | |
1849 | u16 open_settings; | |
1850 | u8 transaction_timeout; | |
1851 | ||
1da177e4 LT |
1852 | if (edge_port == NULL) |
1853 | return -ENODEV; | |
1854 | ||
1143832e | 1855 | port_number = port->port_number; |
1da177e4 LT |
1856 | |
1857 | dev = port->serial->dev; | |
1858 | ||
1da177e4 | 1859 | /* turn off loopback */ |
2742fd88 | 1860 | status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0); |
1da177e4 | 1861 | if (status) { |
2742fd88 AC |
1862 | dev_err(&port->dev, |
1863 | "%s - cannot send clear loopback command, %d\n", | |
441b62c1 | 1864 | __func__, status); |
1da177e4 LT |
1865 | return status; |
1866 | } | |
2742fd88 | 1867 | |
1da177e4 | 1868 | /* set up the port settings */ |
95da310e | 1869 | if (tty) |
adc8d746 | 1870 | edge_set_termios(tty, port, &tty->termios); |
1da177e4 LT |
1871 | |
1872 | /* open up the port */ | |
1873 | ||
1874 | /* milliseconds to timeout for DMA transfer */ | |
1875 | transaction_timeout = 2; | |
1876 | ||
2742fd88 AC |
1877 | edge_port->ump_read_timeout = |
1878 | max(20, ((transaction_timeout * 3) / 2)); | |
1da177e4 | 1879 | |
2742fd88 AC |
1880 | /* milliseconds to timeout for DMA transfer */ |
1881 | open_settings = (u8)(UMP_DMA_MODE_CONTINOUS | | |
1882 | UMP_PIPE_TRANS_TIMEOUT_ENA | | |
1da177e4 LT |
1883 | (transaction_timeout << 2)); |
1884 | ||
67e6da70 | 1885 | dev_dbg(&port->dev, "%s - Sending UMPC_OPEN_PORT\n", __func__); |
1da177e4 LT |
1886 | |
1887 | /* Tell TI to open and start the port */ | |
2742fd88 AC |
1888 | status = send_cmd(dev, UMPC_OPEN_PORT, |
1889 | (u8)(UMPM_UART1_PORT + port_number), open_settings, NULL, 0); | |
1da177e4 | 1890 | if (status) { |
2742fd88 AC |
1891 | dev_err(&port->dev, "%s - cannot send open command, %d\n", |
1892 | __func__, status); | |
1da177e4 LT |
1893 | return status; |
1894 | } | |
1895 | ||
1896 | /* Start the DMA? */ | |
2742fd88 AC |
1897 | status = send_cmd(dev, UMPC_START_PORT, |
1898 | (u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0); | |
1da177e4 | 1899 | if (status) { |
2742fd88 AC |
1900 | dev_err(&port->dev, "%s - cannot send start DMA command, %d\n", |
1901 | __func__, status); | |
1da177e4 LT |
1902 | return status; |
1903 | } | |
1904 | ||
1905 | /* Clear TX and RX buffers in UMP */ | |
2742fd88 | 1906 | status = purge_port(port, UMP_PORT_DIR_OUT | UMP_PORT_DIR_IN); |
1da177e4 | 1907 | if (status) { |
2742fd88 AC |
1908 | dev_err(&port->dev, |
1909 | "%s - cannot send clear buffers command, %d\n", | |
1910 | __func__, status); | |
1da177e4 LT |
1911 | return status; |
1912 | } | |
1913 | ||
1914 | /* Read Initial MSR */ | |
2742fd88 AC |
1915 | status = ti_vread_sync(dev, UMPC_READ_MSR, 0, |
1916 | (__u16)(UMPM_UART1_PORT + port_number), | |
1917 | &edge_port->shadow_msr, 1); | |
1da177e4 | 1918 | if (status) { |
2742fd88 AC |
1919 | dev_err(&port->dev, "%s - cannot send read MSR command, %d\n", |
1920 | __func__, status); | |
1da177e4 LT |
1921 | return status; |
1922 | } | |
1923 | ||
67e6da70 | 1924 | dev_dbg(&port->dev, "ShadowMSR 0x%X\n", edge_port->shadow_msr); |
2742fd88 | 1925 | |
1da177e4 LT |
1926 | /* Set Initial MCR */ |
1927 | edge_port->shadow_mcr = MCR_RTS | MCR_DTR; | |
67e6da70 | 1928 | dev_dbg(&port->dev, "ShadowMCR 0x%X\n", edge_port->shadow_mcr); |
1da177e4 LT |
1929 | |
1930 | edge_serial = edge_port->edge_serial; | |
241ca64f | 1931 | if (mutex_lock_interruptible(&edge_serial->es_lock)) |
1da177e4 LT |
1932 | return -ERESTARTSYS; |
1933 | if (edge_serial->num_ports_open == 0) { | |
2742fd88 | 1934 | /* we are the first port to open, post the interrupt urb */ |
1da177e4 LT |
1935 | urb = edge_serial->serial->port[0]->interrupt_in_urb; |
1936 | if (!urb) { | |
2742fd88 AC |
1937 | dev_err(&port->dev, |
1938 | "%s - no interrupt urb present, exiting\n", | |
1939 | __func__); | |
1da177e4 | 1940 | status = -EINVAL; |
241ca64f | 1941 | goto release_es_lock; |
1da177e4 | 1942 | } |
1da177e4 | 1943 | urb->context = edge_serial; |
2742fd88 | 1944 | status = usb_submit_urb(urb, GFP_KERNEL); |
1da177e4 | 1945 | if (status) { |
2742fd88 AC |
1946 | dev_err(&port->dev, |
1947 | "%s - usb_submit_urb failed with value %d\n", | |
1948 | __func__, status); | |
241ca64f | 1949 | goto release_es_lock; |
1da177e4 LT |
1950 | } |
1951 | } | |
1952 | ||
1953 | /* | |
1954 | * reset the data toggle on the bulk endpoints to work around bug in | |
1955 | * host controllers where things get out of sync some times | |
1956 | */ | |
2742fd88 AC |
1957 | usb_clear_halt(dev, port->write_urb->pipe); |
1958 | usb_clear_halt(dev, port->read_urb->pipe); | |
1da177e4 LT |
1959 | |
1960 | /* start up our bulk read urb */ | |
1961 | urb = port->read_urb; | |
1962 | if (!urb) { | |
2742fd88 AC |
1963 | dev_err(&port->dev, "%s - no read urb present, exiting\n", |
1964 | __func__); | |
1da177e4 LT |
1965 | status = -EINVAL; |
1966 | goto unlink_int_urb; | |
1967 | } | |
1968 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; | |
1da177e4 | 1969 | urb->context = edge_port; |
2742fd88 | 1970 | status = usb_submit_urb(urb, GFP_KERNEL); |
1da177e4 | 1971 | if (status) { |
2742fd88 AC |
1972 | dev_err(&port->dev, |
1973 | "%s - read bulk usb_submit_urb failed with value %d\n", | |
1974 | __func__, status); | |
1da177e4 LT |
1975 | goto unlink_int_urb; |
1976 | } | |
1977 | ||
1978 | ++edge_serial->num_ports_open; | |
1979 | ||
241ca64f | 1980 | goto release_es_lock; |
1da177e4 LT |
1981 | |
1982 | unlink_int_urb: | |
1983 | if (edge_port->edge_serial->num_ports_open == 0) | |
1984 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
241ca64f MK |
1985 | release_es_lock: |
1986 | mutex_unlock(&edge_serial->es_lock); | |
1da177e4 LT |
1987 | return status; |
1988 | } | |
1989 | ||
335f8514 | 1990 | static void edge_close(struct usb_serial_port *port) |
1da177e4 LT |
1991 | { |
1992 | struct edgeport_serial *edge_serial; | |
1993 | struct edgeport_port *edge_port; | |
af581059 | 1994 | struct usb_serial *serial = port->serial; |
77de2518 | 1995 | unsigned long flags; |
1da177e4 | 1996 | int port_number; |
1da177e4 | 1997 | |
1da177e4 LT |
1998 | edge_serial = usb_get_serial_data(port->serial); |
1999 | edge_port = usb_get_serial_port_data(port); | |
2742fd88 | 2000 | if (edge_serial == NULL || edge_port == NULL) |
1da177e4 | 2001 | return; |
2742fd88 | 2002 | |
75899513 PB |
2003 | /* |
2004 | * The bulkreadcompletion routine will check | |
2005 | * this flag and dump add read data | |
2006 | */ | |
1da177e4 LT |
2007 | edge_port->close_pending = 1; |
2008 | ||
1da177e4 LT |
2009 | usb_kill_urb(port->read_urb); |
2010 | usb_kill_urb(port->write_urb); | |
2011 | edge_port->ep_write_urb_in_use = 0; | |
77de2518 | 2012 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
ddca16e4 | 2013 | kfifo_reset_out(&port->write_fifo); |
77de2518 | 2014 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
1da177e4 | 2015 | |
67e6da70 | 2016 | dev_dbg(&port->dev, "%s - send umpc_close_port\n", __func__); |
1143832e | 2017 | port_number = port->port_number; |
bca87e9e JH |
2018 | send_cmd(serial->dev, UMPC_CLOSE_PORT, |
2019 | (__u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0); | |
af581059 | 2020 | |
241ca64f | 2021 | mutex_lock(&edge_serial->es_lock); |
1da177e4 LT |
2022 | --edge_port->edge_serial->num_ports_open; |
2023 | if (edge_port->edge_serial->num_ports_open <= 0) { | |
2024 | /* last port is now closed, let's shut down our interrupt urb */ | |
2025 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
2026 | edge_port->edge_serial->num_ports_open = 0; | |
2027 | } | |
241ca64f | 2028 | mutex_unlock(&edge_serial->es_lock); |
1da177e4 | 2029 | edge_port->close_pending = 0; |
1da177e4 LT |
2030 | } |
2031 | ||
95da310e AC |
2032 | static int edge_write(struct tty_struct *tty, struct usb_serial_port *port, |
2033 | const unsigned char *data, int count) | |
1da177e4 LT |
2034 | { |
2035 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
1da177e4 | 2036 | |
1da177e4 | 2037 | if (count == 0) { |
67e6da70 | 2038 | dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__); |
1da177e4 LT |
2039 | return 0; |
2040 | } | |
2041 | ||
2042 | if (edge_port == NULL) | |
2043 | return -ENODEV; | |
2044 | if (edge_port->close_pending == 1) | |
2045 | return -ENODEV; | |
2046 | ||
ddca16e4 | 2047 | count = kfifo_in_locked(&port->write_fifo, data, count, |
d733cec1 | 2048 | &edge_port->ep_lock); |
ae3759c2 | 2049 | edge_send(port, tty); |
1da177e4 LT |
2050 | |
2051 | return count; | |
2052 | } | |
2053 | ||
ae3759c2 | 2054 | static void edge_send(struct usb_serial_port *port, struct tty_struct *tty) |
1da177e4 LT |
2055 | { |
2056 | int count, result; | |
2057 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
1da177e4 LT |
2058 | unsigned long flags; |
2059 | ||
1da177e4 LT |
2060 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
2061 | ||
2062 | if (edge_port->ep_write_urb_in_use) { | |
2063 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2064 | return; | |
2065 | } | |
2066 | ||
ddca16e4 | 2067 | count = kfifo_out(&port->write_fifo, |
1da177e4 LT |
2068 | port->write_urb->transfer_buffer, |
2069 | port->bulk_out_size); | |
2070 | ||
2071 | if (count == 0) { | |
2072 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2073 | return; | |
2074 | } | |
2075 | ||
2076 | edge_port->ep_write_urb_in_use = 1; | |
2077 | ||
2078 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2079 | ||
59d33f2f | 2080 | usb_serial_debug_data(&port->dev, __func__, count, port->write_urb->transfer_buffer); |
1da177e4 LT |
2081 | |
2082 | /* set up our urb */ | |
fd11961a | 2083 | port->write_urb->transfer_buffer_length = count; |
1da177e4 LT |
2084 | |
2085 | /* send the data out the bulk port */ | |
2086 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); | |
2087 | if (result) { | |
22a416c4 | 2088 | dev_err_console(port, |
2742fd88 AC |
2089 | "%s - failed submitting write urb, error %d\n", |
2090 | __func__, result); | |
1da177e4 | 2091 | edge_port->ep_write_urb_in_use = 0; |
2742fd88 AC |
2092 | /* TODO: reschedule edge_send */ |
2093 | } else | |
cf9a9d66 | 2094 | edge_port->port->icount.tx += count; |
1da177e4 | 2095 | |
75899513 PB |
2096 | /* |
2097 | * wakeup any process waiting for writes to complete | |
2098 | * there is now more room in the buffer for new writes | |
2099 | */ | |
2742fd88 | 2100 | if (tty) |
1da177e4 | 2101 | tty_wakeup(tty); |
1da177e4 LT |
2102 | } |
2103 | ||
95da310e | 2104 | static int edge_write_room(struct tty_struct *tty) |
1da177e4 | 2105 | { |
95da310e | 2106 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
2107 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
2108 | int room = 0; | |
2109 | unsigned long flags; | |
2110 | ||
1da177e4 | 2111 | if (edge_port == NULL) |
2742fd88 | 2112 | return 0; |
1da177e4 | 2113 | if (edge_port->close_pending == 1) |
2742fd88 | 2114 | return 0; |
1da177e4 LT |
2115 | |
2116 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
ddca16e4 | 2117 | room = kfifo_avail(&port->write_fifo); |
1da177e4 LT |
2118 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
2119 | ||
67e6da70 | 2120 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); |
1da177e4 LT |
2121 | return room; |
2122 | } | |
2123 | ||
95da310e | 2124 | static int edge_chars_in_buffer(struct tty_struct *tty) |
1da177e4 | 2125 | { |
95da310e | 2126 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
2127 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
2128 | int chars = 0; | |
2129 | unsigned long flags; | |
1da177e4 | 2130 | if (edge_port == NULL) |
2742fd88 | 2131 | return 0; |
1da177e4 LT |
2132 | |
2133 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
ddca16e4 | 2134 | chars = kfifo_len(&port->write_fifo); |
1da177e4 LT |
2135 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
2136 | ||
67e6da70 | 2137 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); |
1da177e4 LT |
2138 | return chars; |
2139 | } | |
2140 | ||
b16634ad JH |
2141 | static bool edge_tx_empty(struct usb_serial_port *port) |
2142 | { | |
2143 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2144 | int ret; | |
2145 | ||
2146 | ret = tx_active(edge_port); | |
2147 | if (ret > 0) | |
2148 | return false; | |
2149 | ||
2150 | return true; | |
2151 | } | |
2152 | ||
95da310e | 2153 | static void edge_throttle(struct tty_struct *tty) |
1da177e4 | 2154 | { |
95da310e | 2155 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 2156 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
1da177e4 LT |
2157 | int status; |
2158 | ||
1da177e4 LT |
2159 | if (edge_port == NULL) |
2160 | return; | |
2161 | ||
1da177e4 LT |
2162 | /* if we are implementing XON/XOFF, send the stop character */ |
2163 | if (I_IXOFF(tty)) { | |
2164 | unsigned char stop_char = STOP_CHAR(tty); | |
95da310e AC |
2165 | status = edge_write(tty, port, &stop_char, 1); |
2166 | if (status <= 0) { | |
2167 | dev_err(&port->dev, "%s - failed to write stop character, %d\n", __func__, status); | |
2168 | } | |
1da177e4 LT |
2169 | } |
2170 | ||
75899513 PB |
2171 | /* |
2172 | * if we are implementing RTS/CTS, stop reads | |
2173 | * and the Edgeport will clear the RTS line | |
2174 | */ | |
1da177e4 LT |
2175 | if (C_CRTSCTS(tty)) |
2176 | stop_read(edge_port); | |
2177 | ||
2178 | } | |
2179 | ||
95da310e | 2180 | static void edge_unthrottle(struct tty_struct *tty) |
1da177e4 | 2181 | { |
95da310e | 2182 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 2183 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
1da177e4 LT |
2184 | int status; |
2185 | ||
1da177e4 LT |
2186 | if (edge_port == NULL) |
2187 | return; | |
2188 | ||
1da177e4 LT |
2189 | /* if we are implementing XON/XOFF, send the start character */ |
2190 | if (I_IXOFF(tty)) { | |
2191 | unsigned char start_char = START_CHAR(tty); | |
95da310e AC |
2192 | status = edge_write(tty, port, &start_char, 1); |
2193 | if (status <= 0) { | |
2194 | dev_err(&port->dev, "%s - failed to write start character, %d\n", __func__, status); | |
2195 | } | |
1da177e4 | 2196 | } |
75899513 PB |
2197 | /* |
2198 | * if we are implementing RTS/CTS, restart reads | |
2199 | * are the Edgeport will assert the RTS line | |
2200 | */ | |
1da177e4 LT |
2201 | if (C_CRTSCTS(tty)) { |
2202 | status = restart_read(edge_port); | |
2203 | if (status) | |
2742fd88 AC |
2204 | dev_err(&port->dev, |
2205 | "%s - read bulk usb_submit_urb failed: %d\n", | |
2206 | __func__, status); | |
1da177e4 LT |
2207 | } |
2208 | ||
2209 | } | |
2210 | ||
2211 | static void stop_read(struct edgeport_port *edge_port) | |
2212 | { | |
2213 | unsigned long flags; | |
2214 | ||
2215 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2216 | ||
2217 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) | |
2218 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING; | |
2219 | edge_port->shadow_mcr &= ~MCR_RTS; | |
2220 | ||
2221 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2222 | } | |
2223 | ||
2224 | static int restart_read(struct edgeport_port *edge_port) | |
2225 | { | |
2226 | struct urb *urb; | |
2227 | int status = 0; | |
2228 | unsigned long flags; | |
2229 | ||
2230 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2231 | ||
2232 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) { | |
2233 | urb = edge_port->port->read_urb; | |
efdff608 | 2234 | status = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
2235 | } |
2236 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; | |
2237 | edge_port->shadow_mcr |= MCR_RTS; | |
2238 | ||
2239 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2240 | ||
2241 | return status; | |
2242 | } | |
2243 | ||
95da310e AC |
2244 | static void change_port_settings(struct tty_struct *tty, |
2245 | struct edgeport_port *edge_port, struct ktermios *old_termios) | |
1da177e4 | 2246 | { |
67e6da70 | 2247 | struct device *dev = &edge_port->port->dev; |
1da177e4 | 2248 | struct ump_uart_config *config; |
1da177e4 LT |
2249 | int baud; |
2250 | unsigned cflag; | |
2251 | int status; | |
1143832e | 2252 | int port_number = edge_port->port->port_number; |
1da177e4 | 2253 | |
95da310e | 2254 | config = kmalloc (sizeof (*config), GFP_KERNEL); |
1da177e4 | 2255 | if (!config) { |
adc8d746 | 2256 | tty->termios = *old_termios; |
1da177e4 LT |
2257 | return; |
2258 | } | |
2259 | ||
adc8d746 | 2260 | cflag = tty->termios.c_cflag; |
1da177e4 LT |
2261 | |
2262 | config->wFlags = 0; | |
2263 | ||
2264 | /* These flags must be set */ | |
2265 | config->wFlags |= UMP_MASK_UART_FLAGS_RECEIVE_MS_INT; | |
2266 | config->wFlags |= UMP_MASK_UART_FLAGS_AUTO_START_ON_ERR; | |
2267 | config->bUartMode = (__u8)(edge_port->bUartMode); | |
2268 | ||
2269 | switch (cflag & CSIZE) { | |
2742fd88 AC |
2270 | case CS5: |
2271 | config->bDataBits = UMP_UART_CHAR5BITS; | |
67e6da70 | 2272 | dev_dbg(dev, "%s - data bits = 5\n", __func__); |
2742fd88 AC |
2273 | break; |
2274 | case CS6: | |
2275 | config->bDataBits = UMP_UART_CHAR6BITS; | |
67e6da70 | 2276 | dev_dbg(dev, "%s - data bits = 6\n", __func__); |
2742fd88 AC |
2277 | break; |
2278 | case CS7: | |
2279 | config->bDataBits = UMP_UART_CHAR7BITS; | |
67e6da70 | 2280 | dev_dbg(dev, "%s - data bits = 7\n", __func__); |
2742fd88 AC |
2281 | break; |
2282 | default: | |
2283 | case CS8: | |
2284 | config->bDataBits = UMP_UART_CHAR8BITS; | |
67e6da70 | 2285 | dev_dbg(dev, "%s - data bits = 8\n", __func__); |
1da177e4 LT |
2286 | break; |
2287 | } | |
2288 | ||
2289 | if (cflag & PARENB) { | |
2290 | if (cflag & PARODD) { | |
2291 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; | |
2292 | config->bParity = UMP_UART_ODDPARITY; | |
67e6da70 | 2293 | dev_dbg(dev, "%s - parity = odd\n", __func__); |
1da177e4 LT |
2294 | } else { |
2295 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; | |
2296 | config->bParity = UMP_UART_EVENPARITY; | |
67e6da70 | 2297 | dev_dbg(dev, "%s - parity = even\n", __func__); |
1da177e4 LT |
2298 | } |
2299 | } else { | |
2742fd88 | 2300 | config->bParity = UMP_UART_NOPARITY; |
67e6da70 | 2301 | dev_dbg(dev, "%s - parity = none\n", __func__); |
1da177e4 LT |
2302 | } |
2303 | ||
2304 | if (cflag & CSTOPB) { | |
2305 | config->bStopBits = UMP_UART_STOPBIT2; | |
67e6da70 | 2306 | dev_dbg(dev, "%s - stop bits = 2\n", __func__); |
1da177e4 LT |
2307 | } else { |
2308 | config->bStopBits = UMP_UART_STOPBIT1; | |
67e6da70 | 2309 | dev_dbg(dev, "%s - stop bits = 1\n", __func__); |
1da177e4 LT |
2310 | } |
2311 | ||
2312 | /* figure out the flow control settings */ | |
2313 | if (cflag & CRTSCTS) { | |
2314 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X_CTS_FLOW; | |
2315 | config->wFlags |= UMP_MASK_UART_FLAGS_RTS_FLOW; | |
67e6da70 | 2316 | dev_dbg(dev, "%s - RTS/CTS is enabled\n", __func__); |
1da177e4 | 2317 | } else { |
67e6da70 | 2318 | dev_dbg(dev, "%s - RTS/CTS is disabled\n", __func__); |
1da177e4 LT |
2319 | restart_read(edge_port); |
2320 | } | |
2321 | ||
75899513 PB |
2322 | /* |
2323 | * if we are implementing XON/XOFF, set the start and stop | |
2324 | * character in the device | |
2325 | */ | |
2742fd88 AC |
2326 | config->cXon = START_CHAR(tty); |
2327 | config->cXoff = STOP_CHAR(tty); | |
1da177e4 | 2328 | |
2742fd88 AC |
2329 | /* if we are implementing INBOUND XON/XOFF */ |
2330 | if (I_IXOFF(tty)) { | |
2331 | config->wFlags |= UMP_MASK_UART_FLAGS_IN_X; | |
67e6da70 GKH |
2332 | dev_dbg(dev, "%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n", |
2333 | __func__, config->cXon, config->cXoff); | |
2742fd88 | 2334 | } else |
67e6da70 | 2335 | dev_dbg(dev, "%s - INBOUND XON/XOFF is disabled\n", __func__); |
1da177e4 | 2336 | |
2742fd88 AC |
2337 | /* if we are implementing OUTBOUND XON/XOFF */ |
2338 | if (I_IXON(tty)) { | |
2339 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X; | |
67e6da70 GKH |
2340 | dev_dbg(dev, "%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n", |
2341 | __func__, config->cXon, config->cXoff); | |
2742fd88 | 2342 | } else |
67e6da70 | 2343 | dev_dbg(dev, "%s - OUTBOUND XON/XOFF is disabled\n", __func__); |
1da177e4 | 2344 | |
adc8d746 | 2345 | tty->termios.c_cflag &= ~CMSPAR; |
d5f5bcd4 | 2346 | |
1da177e4 LT |
2347 | /* Round the baud rate */ |
2348 | baud = tty_get_baud_rate(tty); | |
2349 | if (!baud) { | |
2350 | /* pick a default, any default... */ | |
2351 | baud = 9600; | |
d5f5bcd4 AC |
2352 | } else |
2353 | tty_encode_baud_rate(tty, baud, baud); | |
2354 | ||
1da177e4 LT |
2355 | edge_port->baud_rate = baud; |
2356 | config->wBaudRate = (__u16)((461550L + baud/2) / baud); | |
2357 | ||
d5f5bcd4 AC |
2358 | /* FIXME: Recompute actual baud from divisor here */ |
2359 | ||
67e6da70 | 2360 | dev_dbg(dev, "%s - baud rate = %d, wBaudRate = %d\n", __func__, baud, config->wBaudRate); |
1da177e4 | 2361 | |
67e6da70 GKH |
2362 | dev_dbg(dev, "wBaudRate: %d\n", (int)(461550L / config->wBaudRate)); |
2363 | dev_dbg(dev, "wFlags: 0x%x\n", config->wFlags); | |
2364 | dev_dbg(dev, "bDataBits: %d\n", config->bDataBits); | |
2365 | dev_dbg(dev, "bParity: %d\n", config->bParity); | |
2366 | dev_dbg(dev, "bStopBits: %d\n", config->bStopBits); | |
2367 | dev_dbg(dev, "cXon: %d\n", config->cXon); | |
2368 | dev_dbg(dev, "cXoff: %d\n", config->cXoff); | |
2369 | dev_dbg(dev, "bUartMode: %d\n", config->bUartMode); | |
1da177e4 LT |
2370 | |
2371 | /* move the word values into big endian mode */ | |
2742fd88 AC |
2372 | cpu_to_be16s(&config->wFlags); |
2373 | cpu_to_be16s(&config->wBaudRate); | |
1da177e4 | 2374 | |
2742fd88 | 2375 | status = send_cmd(edge_port->port->serial->dev, UMPC_SET_CONFIG, |
1da177e4 | 2376 | (__u8)(UMPM_UART1_PORT + port_number), |
2742fd88 AC |
2377 | 0, (__u8 *)config, sizeof(*config)); |
2378 | if (status) | |
67e6da70 GKH |
2379 | dev_dbg(dev, "%s - error %d when trying to write config to device\n", |
2380 | __func__, status); | |
2742fd88 | 2381 | kfree(config); |
1da177e4 LT |
2382 | } |
2383 | ||
2e0ddd62 | 2384 | static void edge_set_termios(struct tty_struct *tty, |
95da310e | 2385 | struct usb_serial_port *port, struct ktermios *old_termios) |
1da177e4 LT |
2386 | { |
2387 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
95da310e AC |
2388 | unsigned int cflag; |
2389 | ||
adc8d746 | 2390 | cflag = tty->termios.c_cflag; |
1da177e4 | 2391 | |
67e6da70 | 2392 | dev_dbg(&port->dev, "%s - clfag %08x iflag %08x\n", __func__, |
d9a80746 | 2393 | tty->termios.c_cflag, tty->termios.c_iflag); |
67e6da70 GKH |
2394 | dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__, |
2395 | old_termios->c_cflag, old_termios->c_iflag); | |
1da177e4 LT |
2396 | |
2397 | if (edge_port == NULL) | |
2398 | return; | |
1da177e4 | 2399 | /* change the port settings to the new ones specified */ |
95da310e | 2400 | change_port_settings(tty, edge_port, old_termios); |
1da177e4 LT |
2401 | } |
2402 | ||
20b9d177 | 2403 | static int edge_tiocmset(struct tty_struct *tty, |
2742fd88 | 2404 | unsigned int set, unsigned int clear) |
1da177e4 | 2405 | { |
95da310e | 2406 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
2407 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
2408 | unsigned int mcr; | |
3d71fe0b | 2409 | unsigned long flags; |
1da177e4 | 2410 | |
3d71fe0b | 2411 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
1da177e4 LT |
2412 | mcr = edge_port->shadow_mcr; |
2413 | if (set & TIOCM_RTS) | |
2414 | mcr |= MCR_RTS; | |
2415 | if (set & TIOCM_DTR) | |
2416 | mcr |= MCR_DTR; | |
2417 | if (set & TIOCM_LOOP) | |
2418 | mcr |= MCR_LOOPBACK; | |
2419 | ||
2420 | if (clear & TIOCM_RTS) | |
2421 | mcr &= ~MCR_RTS; | |
2422 | if (clear & TIOCM_DTR) | |
2423 | mcr &= ~MCR_DTR; | |
2424 | if (clear & TIOCM_LOOP) | |
2425 | mcr &= ~MCR_LOOPBACK; | |
2426 | ||
2427 | edge_port->shadow_mcr = mcr; | |
3d71fe0b | 2428 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
1da177e4 | 2429 | |
2742fd88 | 2430 | restore_mcr(edge_port, mcr); |
1da177e4 LT |
2431 | return 0; |
2432 | } | |
2433 | ||
60b33c13 | 2434 | static int edge_tiocmget(struct tty_struct *tty) |
1da177e4 | 2435 | { |
95da310e | 2436 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
2437 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
2438 | unsigned int result = 0; | |
2439 | unsigned int msr; | |
2440 | unsigned int mcr; | |
3d71fe0b | 2441 | unsigned long flags; |
1da177e4 | 2442 | |
3d71fe0b AC |
2443 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
2444 | ||
1da177e4 LT |
2445 | msr = edge_port->shadow_msr; |
2446 | mcr = edge_port->shadow_mcr; | |
2447 | result = ((mcr & MCR_DTR) ? TIOCM_DTR: 0) /* 0x002 */ | |
2448 | | ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */ | |
2449 | | ((msr & EDGEPORT_MSR_CTS) ? TIOCM_CTS: 0) /* 0x020 */ | |
2450 | | ((msr & EDGEPORT_MSR_CD) ? TIOCM_CAR: 0) /* 0x040 */ | |
2451 | | ((msr & EDGEPORT_MSR_RI) ? TIOCM_RI: 0) /* 0x080 */ | |
2452 | | ((msr & EDGEPORT_MSR_DSR) ? TIOCM_DSR: 0); /* 0x100 */ | |
2453 | ||
2454 | ||
67e6da70 | 2455 | dev_dbg(&port->dev, "%s -- %x\n", __func__, result); |
3d71fe0b | 2456 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
1da177e4 LT |
2457 | |
2458 | return result; | |
2459 | } | |
2460 | ||
2742fd88 AC |
2461 | static int get_serial_info(struct edgeport_port *edge_port, |
2462 | struct serial_struct __user *retinfo) | |
1da177e4 LT |
2463 | { |
2464 | struct serial_struct tmp; | |
f40d7815 | 2465 | unsigned cwait; |
1da177e4 | 2466 | |
f40d7815 JH |
2467 | cwait = edge_port->port->port.closing_wait; |
2468 | if (cwait != ASYNC_CLOSING_WAIT_NONE) | |
b6fd35ee | 2469 | cwait = jiffies_to_msecs(cwait) / 10; |
f40d7815 | 2470 | |
1da177e4 LT |
2471 | memset(&tmp, 0, sizeof(tmp)); |
2472 | ||
2473 | tmp.type = PORT_16550A; | |
e5b1e206 | 2474 | tmp.line = edge_port->port->minor; |
1143832e | 2475 | tmp.port = edge_port->port->port_number; |
1da177e4 | 2476 | tmp.irq = 0; |
1da177e4 LT |
2477 | tmp.xmit_fifo_size = edge_port->port->bulk_out_size; |
2478 | tmp.baud_base = 9600; | |
2479 | tmp.close_delay = 5*HZ; | |
f40d7815 | 2480 | tmp.closing_wait = cwait; |
1da177e4 LT |
2481 | |
2482 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) | |
2483 | return -EFAULT; | |
2484 | return 0; | |
2485 | } | |
2486 | ||
00a0d0d6 | 2487 | static int edge_ioctl(struct tty_struct *tty, |
2742fd88 | 2488 | unsigned int cmd, unsigned long arg) |
1da177e4 | 2489 | { |
95da310e | 2490 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 2491 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
1da177e4 | 2492 | |
1da177e4 | 2493 | switch (cmd) { |
2742fd88 | 2494 | case TIOCGSERIAL: |
67e6da70 | 2495 | dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__); |
2742fd88 AC |
2496 | return get_serial_info(edge_port, |
2497 | (struct serial_struct __user *) arg); | |
1da177e4 | 2498 | } |
1da177e4 LT |
2499 | return -ENOIOCTLCMD; |
2500 | } | |
2501 | ||
95da310e | 2502 | static void edge_break(struct tty_struct *tty, int break_state) |
1da177e4 | 2503 | { |
95da310e | 2504 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
2505 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
2506 | int status; | |
2742fd88 | 2507 | int bv = 0; /* Off */ |
1da177e4 | 2508 | |
95da310e | 2509 | if (break_state == -1) |
2742fd88 AC |
2510 | bv = 1; /* On */ |
2511 | status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv); | |
2512 | if (status) | |
67e6da70 GKH |
2513 | dev_dbg(&port->dev, "%s - error %d sending break set/clear command.\n", |
2514 | __func__, status); | |
1da177e4 LT |
2515 | } |
2516 | ||
26c78daa PB |
2517 | static void edge_heartbeat_schedule(struct edgeport_serial *edge_serial) |
2518 | { | |
2519 | if (!edge_serial->use_heartbeat) | |
2520 | return; | |
2521 | ||
2522 | schedule_delayed_work(&edge_serial->heartbeat_work, | |
2523 | FW_HEARTBEAT_SECS * HZ); | |
2524 | } | |
2525 | ||
2526 | static void edge_heartbeat_work(struct work_struct *work) | |
2527 | { | |
2528 | struct edgeport_serial *serial; | |
2529 | struct ti_i2c_desc *rom_desc; | |
2530 | ||
2531 | serial = container_of(work, struct edgeport_serial, | |
2532 | heartbeat_work.work); | |
2533 | ||
2534 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); | |
2535 | ||
2536 | /* Descriptor address request is enough to reset the firmware timer */ | |
2537 | if (!rom_desc || !get_descriptor_addr(serial, I2C_DESC_TYPE_ION, | |
2538 | rom_desc)) { | |
2539 | dev_err(&serial->serial->interface->dev, | |
2540 | "%s - Incomplete heartbeat\n", __func__); | |
2541 | } | |
2542 | kfree(rom_desc); | |
2543 | ||
2544 | edge_heartbeat_schedule(serial); | |
2545 | } | |
2546 | ||
2742fd88 | 2547 | static int edge_startup(struct usb_serial *serial) |
1da177e4 LT |
2548 | { |
2549 | struct edgeport_serial *edge_serial; | |
1da177e4 | 2550 | int status; |
26c78daa | 2551 | u16 product_id; |
1da177e4 | 2552 | |
a323fefc JH |
2553 | /* Make sure we have the required endpoints when in download mode. */ |
2554 | if (serial->interface->cur_altsetting->desc.bNumEndpoints > 1) { | |
2555 | if (serial->num_bulk_in < serial->num_ports || | |
2556 | serial->num_bulk_out < serial->num_ports) | |
2557 | return -ENODEV; | |
2558 | } | |
2559 | ||
1da177e4 | 2560 | /* create our private serial structure */ |
80b6ca48 | 2561 | edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL); |
10c642d0 | 2562 | if (!edge_serial) |
1da177e4 | 2563 | return -ENOMEM; |
10c642d0 | 2564 | |
241ca64f | 2565 | mutex_init(&edge_serial->es_lock); |
1da177e4 | 2566 | edge_serial->serial = serial; |
4f9785cc | 2567 | INIT_DELAYED_WORK(&edge_serial->heartbeat_work, edge_heartbeat_work); |
1da177e4 LT |
2568 | usb_set_serial_data(serial, edge_serial); |
2569 | ||
b4146162 | 2570 | status = download_fw(edge_serial); |
4f9785cc | 2571 | if (status < 0) { |
2742fd88 | 2572 | kfree(edge_serial); |
1da177e4 LT |
2573 | return status; |
2574 | } | |
2575 | ||
4f9785cc JH |
2576 | if (status > 0) |
2577 | return 1; /* bind but do not register any ports */ | |
2578 | ||
26c78daa PB |
2579 | product_id = le16_to_cpu( |
2580 | edge_serial->serial->dev->descriptor.idProduct); | |
2581 | ||
2582 | /* Currently only the EP/416 models require heartbeat support */ | |
2583 | if (edge_serial->fw_version > FW_HEARTBEAT_VERSION_CUTOFF) { | |
2584 | if (product_id == ION_DEVICE_ID_TI_EDGEPORT_416 || | |
2585 | product_id == ION_DEVICE_ID_TI_EDGEPORT_416B) { | |
2586 | edge_serial->use_heartbeat = true; | |
2587 | } | |
2588 | } | |
2589 | ||
26c78daa PB |
2590 | edge_heartbeat_schedule(edge_serial); |
2591 | ||
1da177e4 | 2592 | return 0; |
1da177e4 LT |
2593 | } |
2594 | ||
f9c99bb8 | 2595 | static void edge_disconnect(struct usb_serial *serial) |
1da177e4 | 2596 | { |
2330d0a8 JH |
2597 | struct edgeport_serial *edge_serial = usb_get_serial_data(serial); |
2598 | ||
2599 | cancel_delayed_work_sync(&edge_serial->heartbeat_work); | |
f9c99bb8 AS |
2600 | } |
2601 | ||
2602 | static void edge_release(struct usb_serial *serial) | |
2603 | { | |
26c78daa PB |
2604 | struct edgeport_serial *edge_serial = usb_get_serial_data(serial); |
2605 | ||
2606 | cancel_delayed_work_sync(&edge_serial->heartbeat_work); | |
2607 | kfree(edge_serial); | |
00361530 JH |
2608 | } |
2609 | ||
2610 | static int edge_port_probe(struct usb_serial_port *port) | |
2611 | { | |
f9c99bb8 | 2612 | struct edgeport_port *edge_port; |
00361530 | 2613 | int ret; |
f9c99bb8 | 2614 | |
00361530 JH |
2615 | edge_port = kzalloc(sizeof(*edge_port), GFP_KERNEL); |
2616 | if (!edge_port) | |
2617 | return -ENOMEM; | |
2618 | ||
00361530 JH |
2619 | spin_lock_init(&edge_port->ep_lock); |
2620 | edge_port->port = port; | |
2621 | edge_port->edge_serial = usb_get_serial_data(port->serial); | |
2622 | edge_port->bUartMode = default_uart_mode; | |
2623 | ||
0fce06da JH |
2624 | switch (port->port_number) { |
2625 | case 0: | |
2626 | edge_port->uart_base = UMPMEM_BASE_UART1; | |
2627 | edge_port->dma_address = UMPD_OEDB1_ADDRESS; | |
2628 | break; | |
2629 | case 1: | |
2630 | edge_port->uart_base = UMPMEM_BASE_UART2; | |
2631 | edge_port->dma_address = UMPD_OEDB2_ADDRESS; | |
2632 | break; | |
2633 | default: | |
2634 | dev_err(&port->dev, "unknown port number\n"); | |
2635 | ret = -ENODEV; | |
2636 | goto err; | |
2637 | } | |
2638 | ||
2639 | dev_dbg(&port->dev, | |
2640 | "%s - port_number = %d, uart_base = %04x, dma_address = %04x\n", | |
2641 | __func__, port->port_number, edge_port->uart_base, | |
2642 | edge_port->dma_address); | |
2643 | ||
00361530 JH |
2644 | usb_set_serial_port_data(port, edge_port); |
2645 | ||
5d8c61bc | 2646 | ret = edge_create_sysfs_attrs(port); |
0fce06da JH |
2647 | if (ret) |
2648 | goto err; | |
5d8c61bc | 2649 | |
f40d7815 | 2650 | port->port.closing_wait = msecs_to_jiffies(closing_wait * 10); |
d7be6221 | 2651 | port->port.drain_delay = 1; |
f40d7815 | 2652 | |
00361530 | 2653 | return 0; |
0fce06da JH |
2654 | err: |
2655 | kfree(edge_port); | |
2656 | ||
2657 | return ret; | |
1da177e4 LT |
2658 | } |
2659 | ||
00361530 JH |
2660 | static int edge_port_remove(struct usb_serial_port *port) |
2661 | { | |
2662 | struct edgeport_port *edge_port; | |
2663 | ||
2664 | edge_port = usb_get_serial_port_data(port); | |
00361530 | 2665 | edge_remove_sysfs_attrs(port); |
00361530 JH |
2666 | kfree(edge_port); |
2667 | ||
2668 | return 0; | |
2669 | } | |
1da177e4 | 2670 | |
fc4cbd75 MP |
2671 | /* Sysfs Attributes */ |
2672 | ||
154547c4 | 2673 | static ssize_t uart_mode_show(struct device *dev, |
fc4cbd75 MP |
2674 | struct device_attribute *attr, char *buf) |
2675 | { | |
2676 | struct usb_serial_port *port = to_usb_serial_port(dev); | |
2677 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2678 | ||
2679 | return sprintf(buf, "%d\n", edge_port->bUartMode); | |
2680 | } | |
2681 | ||
154547c4 | 2682 | static ssize_t uart_mode_store(struct device *dev, |
fc4cbd75 MP |
2683 | struct device_attribute *attr, const char *valbuf, size_t count) |
2684 | { | |
2685 | struct usb_serial_port *port = to_usb_serial_port(dev); | |
2686 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2687 | unsigned int v = simple_strtoul(valbuf, NULL, 0); | |
2688 | ||
67e6da70 | 2689 | dev_dbg(dev, "%s: setting uart_mode = %d\n", __func__, v); |
fc4cbd75 MP |
2690 | |
2691 | if (v < 256) | |
2692 | edge_port->bUartMode = v; | |
2693 | else | |
441b62c1 | 2694 | dev_err(dev, "%s - uart_mode %d is invalid\n", __func__, v); |
fc4cbd75 MP |
2695 | |
2696 | return count; | |
2697 | } | |
154547c4 | 2698 | static DEVICE_ATTR_RW(uart_mode); |
fc4cbd75 MP |
2699 | |
2700 | static int edge_create_sysfs_attrs(struct usb_serial_port *port) | |
2701 | { | |
2702 | return device_create_file(&port->dev, &dev_attr_uart_mode); | |
2703 | } | |
2704 | ||
2705 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port) | |
2706 | { | |
2707 | device_remove_file(&port->dev, &dev_attr_uart_mode); | |
2708 | return 0; | |
2709 | } | |
2710 | ||
26c78daa PB |
2711 | #ifdef CONFIG_PM |
2712 | static int edge_suspend(struct usb_serial *serial, pm_message_t message) | |
2713 | { | |
2714 | struct edgeport_serial *edge_serial = usb_get_serial_data(serial); | |
2715 | ||
2716 | cancel_delayed_work_sync(&edge_serial->heartbeat_work); | |
2717 | ||
2718 | return 0; | |
2719 | } | |
2720 | ||
2721 | static int edge_resume(struct usb_serial *serial) | |
2722 | { | |
2723 | struct edgeport_serial *edge_serial = usb_get_serial_data(serial); | |
2724 | ||
2725 | edge_heartbeat_schedule(edge_serial); | |
2726 | ||
2727 | return 0; | |
2728 | } | |
2729 | #endif | |
fc4cbd75 | 2730 | |
ea65370d | 2731 | static struct usb_serial_driver edgeport_1port_device = { |
18fcac35 | 2732 | .driver = { |
269bda1c GKH |
2733 | .owner = THIS_MODULE, |
2734 | .name = "edgeport_ti_1", | |
18fcac35 | 2735 | }, |
269bda1c | 2736 | .description = "Edgeport TI 1 port adapter", |
1da177e4 | 2737 | .id_table = edgeport_1port_id_table, |
1da177e4 LT |
2738 | .num_ports = 1, |
2739 | .open = edge_open, | |
2740 | .close = edge_close, | |
2741 | .throttle = edge_throttle, | |
2742 | .unthrottle = edge_unthrottle, | |
2743 | .attach = edge_startup, | |
f9c99bb8 AS |
2744 | .disconnect = edge_disconnect, |
2745 | .release = edge_release, | |
00361530 JH |
2746 | .port_probe = edge_port_probe, |
2747 | .port_remove = edge_port_remove, | |
1da177e4 LT |
2748 | .ioctl = edge_ioctl, |
2749 | .set_termios = edge_set_termios, | |
2750 | .tiocmget = edge_tiocmget, | |
2751 | .tiocmset = edge_tiocmset, | |
48ee5801 | 2752 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
cf9a9d66 | 2753 | .get_icount = usb_serial_generic_get_icount, |
1da177e4 LT |
2754 | .write = edge_write, |
2755 | .write_room = edge_write_room, | |
2756 | .chars_in_buffer = edge_chars_in_buffer, | |
b16634ad | 2757 | .tx_empty = edge_tx_empty, |
1da177e4 LT |
2758 | .break_ctl = edge_break, |
2759 | .read_int_callback = edge_interrupt_callback, | |
2760 | .read_bulk_callback = edge_bulk_in_callback, | |
2761 | .write_bulk_callback = edge_bulk_out_callback, | |
26c78daa PB |
2762 | #ifdef CONFIG_PM |
2763 | .suspend = edge_suspend, | |
2764 | .resume = edge_resume, | |
2765 | #endif | |
1da177e4 LT |
2766 | }; |
2767 | ||
ea65370d | 2768 | static struct usb_serial_driver edgeport_2port_device = { |
18fcac35 | 2769 | .driver = { |
269bda1c GKH |
2770 | .owner = THIS_MODULE, |
2771 | .name = "edgeport_ti_2", | |
18fcac35 | 2772 | }, |
269bda1c | 2773 | .description = "Edgeport TI 2 port adapter", |
1da177e4 | 2774 | .id_table = edgeport_2port_id_table, |
1da177e4 LT |
2775 | .num_ports = 2, |
2776 | .open = edge_open, | |
2777 | .close = edge_close, | |
2778 | .throttle = edge_throttle, | |
2779 | .unthrottle = edge_unthrottle, | |
2780 | .attach = edge_startup, | |
f9c99bb8 AS |
2781 | .disconnect = edge_disconnect, |
2782 | .release = edge_release, | |
00361530 JH |
2783 | .port_probe = edge_port_probe, |
2784 | .port_remove = edge_port_remove, | |
1da177e4 LT |
2785 | .ioctl = edge_ioctl, |
2786 | .set_termios = edge_set_termios, | |
2787 | .tiocmget = edge_tiocmget, | |
2788 | .tiocmset = edge_tiocmset, | |
48ee5801 | 2789 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
cf9a9d66 | 2790 | .get_icount = usb_serial_generic_get_icount, |
1da177e4 LT |
2791 | .write = edge_write, |
2792 | .write_room = edge_write_room, | |
2793 | .chars_in_buffer = edge_chars_in_buffer, | |
b16634ad | 2794 | .tx_empty = edge_tx_empty, |
1da177e4 LT |
2795 | .break_ctl = edge_break, |
2796 | .read_int_callback = edge_interrupt_callback, | |
2797 | .read_bulk_callback = edge_bulk_in_callback, | |
2798 | .write_bulk_callback = edge_bulk_out_callback, | |
26c78daa PB |
2799 | #ifdef CONFIG_PM |
2800 | .suspend = edge_suspend, | |
2801 | .resume = edge_resume, | |
2802 | #endif | |
1da177e4 LT |
2803 | }; |
2804 | ||
7dbe2460 AS |
2805 | static struct usb_serial_driver * const serial_drivers[] = { |
2806 | &edgeport_1port_device, &edgeport_2port_device, NULL | |
2807 | }; | |
2808 | ||
68e24113 | 2809 | module_usb_serial_driver(serial_drivers, id_table_combined); |
1da177e4 | 2810 | |
1da177e4 LT |
2811 | MODULE_AUTHOR(DRIVER_AUTHOR); |
2812 | MODULE_DESCRIPTION(DRIVER_DESC); | |
2813 | MODULE_LICENSE("GPL"); | |
d12b219a | 2814 | MODULE_FIRMWARE("edgeport/down3.bin"); |
1da177e4 | 2815 | |
1da177e4 LT |
2816 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
2817 | MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs"); | |
2818 | ||
2819 | module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR); | |
2742fd88 AC |
2820 | MODULE_PARM_DESC(ignore_cpu_rev, |
2821 | "Ignore the cpu revision when connecting to a device"); | |
1da177e4 | 2822 | |
fc4cbd75 MP |
2823 | module_param(default_uart_mode, int, S_IRUGO | S_IWUSR); |
2824 | MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ..."); |