Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Edgeport USB Serial Converter driver | |
3 | * | |
4 | * Copyright (C) 2000-2002 Inside Out Networks, All rights reserved. | |
5 | * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * Supports the following devices: | |
13 | * EP/1 EP/2 EP/4 EP/21 EP/22 EP/221 EP/42 EP/421 WATCHPORT | |
14 | * | |
15 | * For questions or problems with this driver, contact Inside Out | |
16 | * Networks technical support, or Peter Berger <pberger@brimson.com>, | |
17 | * or Al Borchers <alborchers@steinerpoint.com>. | |
1da177e4 LT |
18 | */ |
19 | ||
1da177e4 LT |
20 | #include <linux/kernel.h> |
21 | #include <linux/jiffies.h> | |
22 | #include <linux/errno.h> | |
23 | #include <linux/init.h> | |
24 | #include <linux/slab.h> | |
25 | #include <linux/tty.h> | |
26 | #include <linux/tty_driver.h> | |
27 | #include <linux/tty_flip.h> | |
28 | #include <linux/module.h> | |
29 | #include <linux/spinlock.h> | |
241ca64f | 30 | #include <linux/mutex.h> |
1da177e4 | 31 | #include <linux/serial.h> |
d733cec1 | 32 | #include <linux/kfifo.h> |
1da177e4 | 33 | #include <linux/ioctl.h> |
d12b219a | 34 | #include <linux/firmware.h> |
2742fd88 | 35 | #include <linux/uaccess.h> |
1da177e4 | 36 | #include <linux/usb.h> |
a969888c | 37 | #include <linux/usb/serial.h> |
1da177e4 | 38 | |
1da177e4 LT |
39 | #include "io_16654.h" |
40 | #include "io_usbvend.h" | |
41 | #include "io_ti.h" | |
42 | ||
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 */ | |
57 | #define TI_MODE_TRANSITIONING 3 /* Currently in boot mode but | |
58 | transitioning to download mode */ | |
1da177e4 LT |
59 | |
60 | /* read urb state */ | |
61 | #define EDGE_READ_URB_RUNNING 0 | |
62 | #define EDGE_READ_URB_STOPPING 1 | |
63 | #define EDGE_READ_URB_STOPPED 2 | |
64 | ||
1da177e4 LT |
65 | #define EDGE_CLOSING_WAIT 4000 /* in .01 sec */ |
66 | ||
1da177e4 LT |
67 | |
68 | /* Product information read from the Edgeport */ | |
2742fd88 AC |
69 | struct product_info { |
70 | int TiMode; /* Current TI Mode */ | |
71 | __u8 hardware_type; /* Type of hardware */ | |
1da177e4 LT |
72 | } __attribute__((packed)); |
73 | ||
1da177e4 LT |
74 | struct edgeport_port { |
75 | __u16 uart_base; | |
76 | __u16 dma_address; | |
77 | __u8 shadow_msr; | |
78 | __u8 shadow_mcr; | |
79 | __u8 shadow_lsr; | |
80 | __u8 lsr_mask; | |
19af5cdb | 81 | __u32 ump_read_timeout; /* Number of milliseconds the UMP will |
1da177e4 LT |
82 | wait without data before completing |
83 | a read short */ | |
84 | int baud_rate; | |
85 | int close_pending; | |
86 | int lsr_event; | |
48ee5801 | 87 | |
1da177e4 LT |
88 | struct edgeport_serial *edge_serial; |
89 | struct usb_serial_port *port; | |
2742fd88 | 90 | __u8 bUartMode; /* Port type, 0: RS232, etc. */ |
1da177e4 LT |
91 | spinlock_t ep_lock; |
92 | int ep_read_urb_state; | |
93 | int ep_write_urb_in_use; | |
1da177e4 LT |
94 | }; |
95 | ||
96 | struct edgeport_serial { | |
97 | struct product_info product_info; | |
2742fd88 AC |
98 | u8 TI_I2C_Type; /* Type of I2C in UMP */ |
99 | u8 TiReadI2C; /* Set to TRUE if we have read the | |
100 | I2c in Boot Mode */ | |
241ca64f | 101 | struct mutex es_lock; |
1da177e4 LT |
102 | int num_ports_open; |
103 | struct usb_serial *serial; | |
104 | }; | |
105 | ||
106 | ||
107 | /* Devices that this driver supports */ | |
7d40d7e8 | 108 | static const struct usb_device_id edgeport_1port_id_table[] = { |
1da177e4 LT |
109 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, |
110 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, | |
111 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, | |
112 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, | |
113 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, | |
114 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, | |
115 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, | |
116 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, | |
117 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, | |
118 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, | |
119 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, | |
120 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, | |
121 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, | |
122 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, | |
123 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, | |
124 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, | |
125 | { } | |
126 | }; | |
127 | ||
7d40d7e8 | 128 | static const struct usb_device_id edgeport_2port_id_table[] = { |
1da177e4 LT |
129 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, |
130 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, | |
131 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, | |
132 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, | |
133 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, | |
134 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, | |
135 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, | |
136 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, | |
137 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, | |
138 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, | |
139 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, | |
140 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, | |
fc4cbd75 | 141 | /* The 4, 8 and 16 port devices show up as multiple 2 port devices */ |
1da177e4 | 142 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, |
fc4cbd75 MP |
143 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
144 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, | |
145 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, | |
146 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, | |
1da177e4 LT |
147 | { } |
148 | }; | |
149 | ||
150 | /* Devices that this driver supports */ | |
7d40d7e8 | 151 | static const struct usb_device_id id_table_combined[] = { |
1da177e4 LT |
152 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, |
153 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, | |
154 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, | |
155 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, | |
156 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, | |
157 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, | |
158 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, | |
159 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, | |
160 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, | |
161 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, | |
162 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, | |
163 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, | |
164 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, | |
165 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, | |
166 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, | |
167 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, | |
168 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, | |
169 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, | |
170 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, | |
171 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, | |
172 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, | |
173 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, | |
174 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, | |
175 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, | |
176 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, | |
177 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, | |
178 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, | |
179 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, | |
180 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, | |
fc4cbd75 MP |
181 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
182 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, | |
183 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, | |
184 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, | |
1da177e4 LT |
185 | { } |
186 | }; | |
187 | ||
2742fd88 | 188 | MODULE_DEVICE_TABLE(usb, id_table_combined); |
1da177e4 | 189 | |
d12b219a JS |
190 | static unsigned char OperationalMajorVersion; |
191 | static unsigned char OperationalMinorVersion; | |
192 | static unsigned short OperationalBuildNumber; | |
1da177e4 | 193 | |
1da177e4 | 194 | static int closing_wait = EDGE_CLOSING_WAIT; |
90ab5ee9 | 195 | static bool ignore_cpu_rev; |
2742fd88 | 196 | static int default_uart_mode; /* RS232 */ |
1da177e4 | 197 | |
2e124b4a JS |
198 | static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data, |
199 | int length); | |
1da177e4 LT |
200 | |
201 | static void stop_read(struct edgeport_port *edge_port); | |
202 | static int restart_read(struct edgeport_port *edge_port); | |
203 | ||
95da310e AC |
204 | static void edge_set_termios(struct tty_struct *tty, |
205 | struct usb_serial_port *port, struct ktermios *old_termios); | |
ae3759c2 | 206 | static void edge_send(struct usb_serial_port *port, struct tty_struct *tty); |
1da177e4 | 207 | |
fc4cbd75 MP |
208 | /* sysfs attributes */ |
209 | static int edge_create_sysfs_attrs(struct usb_serial_port *port); | |
210 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port); | |
211 | ||
1da177e4 | 212 | |
2742fd88 AC |
213 | static int ti_vread_sync(struct usb_device *dev, __u8 request, |
214 | __u16 value, __u16 index, u8 *data, int size) | |
1da177e4 LT |
215 | { |
216 | int status; | |
217 | ||
2742fd88 AC |
218 | status = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request, |
219 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), | |
220 | value, index, data, size, 1000); | |
1da177e4 LT |
221 | if (status < 0) |
222 | return status; | |
223 | if (status != size) { | |
67e6da70 GKH |
224 | dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n", |
225 | __func__, size, status); | |
1da177e4 LT |
226 | return -ECOMM; |
227 | } | |
228 | return 0; | |
229 | } | |
230 | ||
2742fd88 AC |
231 | static int ti_vsend_sync(struct usb_device *dev, __u8 request, |
232 | __u16 value, __u16 index, u8 *data, int size) | |
1da177e4 LT |
233 | { |
234 | int status; | |
235 | ||
2742fd88 AC |
236 | status = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request, |
237 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), | |
238 | value, index, data, size, 1000); | |
1da177e4 LT |
239 | if (status < 0) |
240 | return status; | |
241 | if (status != size) { | |
67e6da70 GKH |
242 | dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n", |
243 | __func__, size, status); | |
1da177e4 LT |
244 | return -ECOMM; |
245 | } | |
246 | return 0; | |
247 | } | |
248 | ||
2742fd88 | 249 | static int send_cmd(struct usb_device *dev, __u8 command, |
1da177e4 LT |
250 | __u8 moduleid, __u16 value, u8 *data, |
251 | int size) | |
252 | { | |
2742fd88 | 253 | return ti_vsend_sync(dev, command, value, moduleid, data, size); |
1da177e4 LT |
254 | } |
255 | ||
256 | /* clear tx/rx buffers and fifo in TI UMP */ | |
2742fd88 | 257 | static int purge_port(struct usb_serial_port *port, __u16 mask) |
1da177e4 | 258 | { |
1143832e | 259 | int port_number = port->port_number; |
1da177e4 | 260 | |
67e6da70 | 261 | dev_dbg(&port->dev, "%s - port %d, mask %x\n", __func__, port_number, mask); |
1da177e4 | 262 | |
2742fd88 | 263 | return send_cmd(port->serial->dev, |
1da177e4 LT |
264 | UMPC_PURGE_PORT, |
265 | (__u8)(UMPM_UART1_PORT + port_number), | |
266 | mask, | |
267 | NULL, | |
268 | 0); | |
269 | } | |
270 | ||
271 | /** | |
2742fd88 | 272 | * read_download_mem - Read edgeport memory from TI chip |
1da177e4 LT |
273 | * @dev: usb device pointer |
274 | * @start_address: Device CPU address at which to read | |
275 | * @length: Length of above data | |
276 | * @address_type: Can read both XDATA and I2C | |
277 | * @buffer: pointer to input data buffer | |
278 | */ | |
2742fd88 | 279 | static int read_download_mem(struct usb_device *dev, int start_address, |
1da177e4 LT |
280 | int length, __u8 address_type, __u8 *buffer) |
281 | { | |
282 | int status = 0; | |
283 | __u8 read_length; | |
284 | __be16 be_start_address; | |
2742fd88 | 285 | |
67e6da70 | 286 | dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, length); |
1da177e4 LT |
287 | |
288 | /* Read in blocks of 64 bytes | |
289 | * (TI firmware can't handle more than 64 byte reads) | |
290 | */ | |
291 | while (length) { | |
292 | if (length > 64) | |
2742fd88 | 293 | read_length = 64; |
1da177e4 LT |
294 | else |
295 | read_length = (__u8)length; | |
296 | ||
297 | if (read_length > 1) { | |
67e6da70 | 298 | dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, read_length); |
1da177e4 | 299 | } |
2742fd88 AC |
300 | be_start_address = cpu_to_be16(start_address); |
301 | status = ti_vread_sync(dev, UMPC_MEMORY_READ, | |
302 | (__u16)address_type, | |
303 | (__force __u16)be_start_address, | |
304 | buffer, read_length); | |
1da177e4 LT |
305 | |
306 | if (status) { | |
67e6da70 | 307 | dev_dbg(&dev->dev, "%s - ERROR %x\n", __func__, status); |
1da177e4 LT |
308 | return status; |
309 | } | |
310 | ||
2742fd88 | 311 | if (read_length > 1) |
59d33f2f | 312 | usb_serial_debug_data(&dev->dev, __func__, read_length, buffer); |
1da177e4 LT |
313 | |
314 | /* Update pointers/length */ | |
315 | start_address += read_length; | |
316 | buffer += read_length; | |
317 | length -= read_length; | |
318 | } | |
2742fd88 | 319 | |
1da177e4 LT |
320 | return status; |
321 | } | |
322 | ||
2742fd88 AC |
323 | static int read_ram(struct usb_device *dev, int start_address, |
324 | int length, __u8 *buffer) | |
1da177e4 | 325 | { |
2742fd88 AC |
326 | return read_download_mem(dev, start_address, length, |
327 | DTK_ADDR_SPACE_XDATA, buffer); | |
1da177e4 LT |
328 | } |
329 | ||
330 | /* Read edgeport memory to a given block */ | |
2742fd88 AC |
331 | static int read_boot_mem(struct edgeport_serial *serial, |
332 | int start_address, int length, __u8 *buffer) | |
1da177e4 LT |
333 | { |
334 | int status = 0; | |
335 | int i; | |
336 | ||
2742fd88 AC |
337 | for (i = 0; i < length; i++) { |
338 | status = ti_vread_sync(serial->serial->dev, | |
339 | UMPC_MEMORY_READ, serial->TI_I2C_Type, | |
340 | (__u16)(start_address+i), &buffer[i], 0x01); | |
1da177e4 | 341 | if (status) { |
67e6da70 | 342 | dev_dbg(&serial->serial->dev->dev, "%s - ERROR %x\n", __func__, status); |
1da177e4 LT |
343 | return status; |
344 | } | |
345 | } | |
346 | ||
67e6da70 GKH |
347 | dev_dbg(&serial->serial->dev->dev, "%s - start_address = %x, length = %d\n", |
348 | __func__, start_address, length); | |
59d33f2f | 349 | usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer); |
1da177e4 LT |
350 | |
351 | serial->TiReadI2C = 1; | |
352 | ||
353 | return status; | |
354 | } | |
355 | ||
356 | /* Write given block to TI EPROM memory */ | |
2742fd88 AC |
357 | static int write_boot_mem(struct edgeport_serial *serial, |
358 | int start_address, int length, __u8 *buffer) | |
1da177e4 LT |
359 | { |
360 | int status = 0; | |
361 | int i; | |
e9305d2f | 362 | u8 *temp; |
1da177e4 LT |
363 | |
364 | /* Must do a read before write */ | |
365 | if (!serial->TiReadI2C) { | |
e9305d2f JH |
366 | temp = kmalloc(1, GFP_KERNEL); |
367 | if (!temp) { | |
368 | dev_err(&serial->serial->dev->dev, | |
369 | "%s - out of memory\n", __func__); | |
370 | return -ENOMEM; | |
371 | } | |
372 | status = read_boot_mem(serial, 0, 1, temp); | |
373 | kfree(temp); | |
1da177e4 LT |
374 | if (status) |
375 | return status; | |
376 | } | |
377 | ||
2742fd88 AC |
378 | for (i = 0; i < length; ++i) { |
379 | status = ti_vsend_sync(serial->serial->dev, | |
380 | UMPC_MEMORY_WRITE, buffer[i], | |
381 | (__u16)(i + start_address), NULL, 0); | |
1da177e4 LT |
382 | if (status) |
383 | return status; | |
384 | } | |
385 | ||
67e6da70 | 386 | dev_dbg(&serial->serial->dev->dev, "%s - start_sddr = %x, length = %d\n", __func__, start_address, length); |
59d33f2f | 387 | usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer); |
1da177e4 LT |
388 | |
389 | return status; | |
390 | } | |
391 | ||
392 | ||
393 | /* Write edgeport I2C memory to TI chip */ | |
2742fd88 AC |
394 | static int write_i2c_mem(struct edgeport_serial *serial, |
395 | int start_address, int length, __u8 address_type, __u8 *buffer) | |
1da177e4 | 396 | { |
67e6da70 | 397 | struct device *dev = &serial->serial->dev->dev; |
1da177e4 LT |
398 | int status = 0; |
399 | int write_length; | |
400 | __be16 be_start_address; | |
401 | ||
402 | /* We can only send a maximum of 1 aligned byte page at a time */ | |
2742fd88 | 403 | |
25985edc | 404 | /* calculate the number of bytes left in the first page */ |
2742fd88 AC |
405 | write_length = EPROM_PAGE_SIZE - |
406 | (start_address & (EPROM_PAGE_SIZE - 1)); | |
1da177e4 LT |
407 | |
408 | if (write_length > length) | |
409 | write_length = length; | |
410 | ||
67e6da70 GKH |
411 | dev_dbg(dev, "%s - BytesInFirstPage Addr = %x, length = %d\n", |
412 | __func__, start_address, write_length); | |
59d33f2f | 413 | usb_serial_debug_data(dev, __func__, write_length, buffer); |
1da177e4 LT |
414 | |
415 | /* Write first page */ | |
2742fd88 AC |
416 | be_start_address = cpu_to_be16(start_address); |
417 | status = ti_vsend_sync(serial->serial->dev, | |
418 | UMPC_MEMORY_WRITE, (__u16)address_type, | |
419 | (__force __u16)be_start_address, | |
420 | buffer, write_length); | |
1da177e4 | 421 | if (status) { |
67e6da70 | 422 | dev_dbg(dev, "%s - ERROR %d\n", __func__, status); |
1da177e4 LT |
423 | return status; |
424 | } | |
425 | ||
426 | length -= write_length; | |
427 | start_address += write_length; | |
428 | buffer += write_length; | |
429 | ||
2742fd88 AC |
430 | /* We should be aligned now -- can write |
431 | max page size bytes at a time */ | |
1da177e4 LT |
432 | while (length) { |
433 | if (length > EPROM_PAGE_SIZE) | |
434 | write_length = EPROM_PAGE_SIZE; | |
435 | else | |
436 | write_length = length; | |
437 | ||
67e6da70 GKH |
438 | dev_dbg(dev, "%s - Page Write Addr = %x, length = %d\n", |
439 | __func__, start_address, write_length); | |
59d33f2f | 440 | usb_serial_debug_data(dev, __func__, write_length, buffer); |
1da177e4 LT |
441 | |
442 | /* Write next page */ | |
2742fd88 AC |
443 | be_start_address = cpu_to_be16(start_address); |
444 | status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE, | |
445 | (__u16)address_type, | |
446 | (__force __u16)be_start_address, | |
447 | buffer, write_length); | |
1da177e4 | 448 | if (status) { |
67e6da70 | 449 | dev_err(dev, "%s - ERROR %d\n", __func__, status); |
1da177e4 LT |
450 | return status; |
451 | } | |
2742fd88 | 452 | |
1da177e4 LT |
453 | length -= write_length; |
454 | start_address += write_length; | |
455 | buffer += write_length; | |
456 | } | |
457 | return status; | |
458 | } | |
459 | ||
460 | /* Examine the UMP DMA registers and LSR | |
2742fd88 | 461 | * |
1da177e4 LT |
462 | * Check the MSBit of the X and Y DMA byte count registers. |
463 | * A zero in this bit indicates that the TX DMA buffers are empty | |
464 | * then check the TX Empty bit in the UART. | |
465 | */ | |
2742fd88 | 466 | static int tx_active(struct edgeport_port *port) |
1da177e4 LT |
467 | { |
468 | int status; | |
469 | struct out_endpoint_desc_block *oedb; | |
470 | __u8 *lsr; | |
471 | int bytes_left = 0; | |
472 | ||
2742fd88 | 473 | oedb = kmalloc(sizeof(*oedb), GFP_KERNEL); |
1da177e4 | 474 | if (!oedb) { |
2742fd88 | 475 | dev_err(&port->port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
476 | return -ENOMEM; |
477 | } | |
478 | ||
2742fd88 | 479 | lsr = kmalloc(1, GFP_KERNEL); /* Sigh, that's right, just one byte, |
1da177e4 LT |
480 | as not all platforms can do DMA |
481 | from stack */ | |
482 | if (!lsr) { | |
483 | kfree(oedb); | |
484 | return -ENOMEM; | |
485 | } | |
486 | /* Read the DMA Count Registers */ | |
2742fd88 AC |
487 | status = read_ram(port->port->serial->dev, port->dma_address, |
488 | sizeof(*oedb), (void *)oedb); | |
1da177e4 LT |
489 | if (status) |
490 | goto exit_is_tx_active; | |
491 | ||
67e6da70 | 492 | dev_dbg(&port->port->dev, "%s - XByteCount 0x%X\n", __func__, oedb->XByteCount); |
1da177e4 LT |
493 | |
494 | /* and the LSR */ | |
2742fd88 AC |
495 | status = read_ram(port->port->serial->dev, |
496 | port->uart_base + UMPMEM_OFFS_UART_LSR, 1, lsr); | |
1da177e4 LT |
497 | |
498 | if (status) | |
499 | goto exit_is_tx_active; | |
67e6da70 | 500 | dev_dbg(&port->port->dev, "%s - LSR = 0x%X\n", __func__, *lsr); |
2742fd88 | 501 | |
1da177e4 | 502 | /* If either buffer has data or we are transmitting then return TRUE */ |
2742fd88 | 503 | if ((oedb->XByteCount & 0x80) != 0) |
1da177e4 LT |
504 | bytes_left += 64; |
505 | ||
2742fd88 | 506 | if ((*lsr & UMP_UART_LSR_TX_MASK) == 0) |
1da177e4 LT |
507 | bytes_left += 1; |
508 | ||
509 | /* We return Not Active if we get any kind of error */ | |
510 | exit_is_tx_active: | |
67e6da70 | 511 | dev_dbg(&port->port->dev, "%s - return %d\n", __func__, bytes_left); |
1da177e4 LT |
512 | |
513 | kfree(lsr); | |
514 | kfree(oedb); | |
515 | return bytes_left; | |
516 | } | |
517 | ||
2742fd88 | 518 | static int choose_config(struct usb_device *dev) |
1da177e4 | 519 | { |
2742fd88 AC |
520 | /* |
521 | * There may be multiple configurations on this device, in which case | |
522 | * we would need to read and parse all of them to find out which one | |
523 | * we want. However, we just support one config at this point, | |
524 | * configuration # 1, which is Config Descriptor 0. | |
525 | */ | |
1da177e4 | 526 | |
67e6da70 GKH |
527 | dev_dbg(&dev->dev, "%s - Number of Interfaces = %d\n", |
528 | __func__, dev->config->desc.bNumInterfaces); | |
529 | dev_dbg(&dev->dev, "%s - MAX Power = %d\n", | |
530 | __func__, dev->config->desc.bMaxPower * 2); | |
1da177e4 LT |
531 | |
532 | if (dev->config->desc.bNumInterfaces != 1) { | |
67e6da70 | 533 | dev_err(&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n", __func__); |
1da177e4 LT |
534 | return -ENODEV; |
535 | } | |
536 | ||
537 | return 0; | |
538 | } | |
539 | ||
2742fd88 AC |
540 | static int read_rom(struct edgeport_serial *serial, |
541 | int start_address, int length, __u8 *buffer) | |
1da177e4 LT |
542 | { |
543 | int status; | |
544 | ||
545 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { | |
2742fd88 | 546 | status = read_download_mem(serial->serial->dev, |
1da177e4 LT |
547 | start_address, |
548 | length, | |
549 | serial->TI_I2C_Type, | |
550 | buffer); | |
551 | } else { | |
2742fd88 AC |
552 | status = read_boot_mem(serial, start_address, length, |
553 | buffer); | |
1da177e4 | 554 | } |
1da177e4 LT |
555 | return status; |
556 | } | |
557 | ||
2742fd88 AC |
558 | static int write_rom(struct edgeport_serial *serial, int start_address, |
559 | int length, __u8 *buffer) | |
1da177e4 LT |
560 | { |
561 | if (serial->product_info.TiMode == TI_MODE_BOOT) | |
2742fd88 AC |
562 | return write_boot_mem(serial, start_address, length, |
563 | buffer); | |
1da177e4 LT |
564 | |
565 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) | |
2742fd88 AC |
566 | return write_i2c_mem(serial, start_address, length, |
567 | serial->TI_I2C_Type, buffer); | |
1da177e4 LT |
568 | return -EINVAL; |
569 | } | |
570 | ||
571 | ||
572 | ||
573 | /* Read a descriptor header from I2C based on type */ | |
2742fd88 AC |
574 | static int get_descriptor_addr(struct edgeport_serial *serial, |
575 | int desc_type, struct ti_i2c_desc *rom_desc) | |
1da177e4 LT |
576 | { |
577 | int start_address; | |
578 | int status; | |
579 | ||
580 | /* Search for requested descriptor in I2C */ | |
581 | start_address = 2; | |
582 | do { | |
2742fd88 | 583 | status = read_rom(serial, |
1da177e4 LT |
584 | start_address, |
585 | sizeof(struct ti_i2c_desc), | |
2742fd88 | 586 | (__u8 *)rom_desc); |
1da177e4 LT |
587 | if (status) |
588 | return 0; | |
589 | ||
590 | if (rom_desc->Type == desc_type) | |
591 | return start_address; | |
592 | ||
2742fd88 AC |
593 | start_address = start_address + sizeof(struct ti_i2c_desc) |
594 | + rom_desc->Size; | |
1da177e4 LT |
595 | |
596 | } while ((start_address < TI_MAX_I2C_SIZE) && rom_desc->Type); | |
2742fd88 | 597 | |
1da177e4 LT |
598 | return 0; |
599 | } | |
600 | ||
601 | /* Validate descriptor checksum */ | |
2742fd88 | 602 | static int valid_csum(struct ti_i2c_desc *rom_desc, __u8 *buffer) |
1da177e4 LT |
603 | { |
604 | __u16 i; | |
605 | __u8 cs = 0; | |
606 | ||
2742fd88 | 607 | for (i = 0; i < rom_desc->Size; i++) |
1da177e4 | 608 | cs = (__u8)(cs + buffer[i]); |
2742fd88 | 609 | |
1da177e4 | 610 | if (cs != rom_desc->CheckSum) { |
67e6da70 | 611 | pr_debug("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs); |
1da177e4 LT |
612 | return -EINVAL; |
613 | } | |
614 | return 0; | |
615 | } | |
616 | ||
617 | /* Make sure that the I2C image is good */ | |
2742fd88 | 618 | static int check_i2c_image(struct edgeport_serial *serial) |
1da177e4 LT |
619 | { |
620 | struct device *dev = &serial->serial->dev->dev; | |
621 | int status = 0; | |
622 | struct ti_i2c_desc *rom_desc; | |
623 | int start_address = 2; | |
624 | __u8 *buffer; | |
625 | __u16 ttype; | |
626 | ||
2742fd88 | 627 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
1da177e4 | 628 | if (!rom_desc) { |
2742fd88 | 629 | dev_err(dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
630 | return -ENOMEM; |
631 | } | |
2742fd88 | 632 | buffer = kmalloc(TI_MAX_I2C_SIZE, GFP_KERNEL); |
1da177e4 | 633 | if (!buffer) { |
2742fd88 AC |
634 | dev_err(dev, "%s - out of memory when allocating buffer\n", |
635 | __func__); | |
636 | kfree(rom_desc); | |
1da177e4 LT |
637 | return -ENOMEM; |
638 | } | |
639 | ||
2742fd88 AC |
640 | /* Read the first byte (Signature0) must be 0x52 or 0x10 */ |
641 | status = read_rom(serial, 0, 1, buffer); | |
1da177e4 | 642 | if (status) |
2742fd88 | 643 | goto out; |
1da177e4 LT |
644 | |
645 | if (*buffer != UMP5152 && *buffer != UMP3410) { | |
2742fd88 | 646 | dev_err(dev, "%s - invalid buffer signature\n", __func__); |
1da177e4 | 647 | status = -ENODEV; |
2742fd88 | 648 | goto out; |
1da177e4 LT |
649 | } |
650 | ||
651 | do { | |
2742fd88 AC |
652 | /* Validate the I2C */ |
653 | status = read_rom(serial, | |
1da177e4 LT |
654 | start_address, |
655 | sizeof(struct ti_i2c_desc), | |
656 | (__u8 *)rom_desc); | |
657 | if (status) | |
658 | break; | |
659 | ||
2742fd88 AC |
660 | if ((start_address + sizeof(struct ti_i2c_desc) + |
661 | rom_desc->Size) > TI_MAX_I2C_SIZE) { | |
1da177e4 | 662 | status = -ENODEV; |
67e6da70 | 663 | dev_dbg(dev, "%s - structure too big, erroring out.\n", __func__); |
1da177e4 LT |
664 | break; |
665 | } | |
666 | ||
67e6da70 | 667 | dev_dbg(dev, "%s Type = 0x%x\n", __func__, rom_desc->Type); |
1da177e4 | 668 | |
2742fd88 | 669 | /* Skip type 2 record */ |
1da177e4 | 670 | ttype = rom_desc->Type & 0x0f; |
2742fd88 AC |
671 | if (ttype != I2C_DESC_TYPE_FIRMWARE_BASIC |
672 | && ttype != I2C_DESC_TYPE_FIRMWARE_AUTO) { | |
673 | /* Read the descriptor data */ | |
674 | status = read_rom(serial, start_address + | |
675 | sizeof(struct ti_i2c_desc), | |
676 | rom_desc->Size, buffer); | |
1da177e4 LT |
677 | if (status) |
678 | break; | |
679 | ||
2742fd88 | 680 | status = valid_csum(rom_desc, buffer); |
1da177e4 LT |
681 | if (status) |
682 | break; | |
683 | } | |
2742fd88 AC |
684 | start_address = start_address + sizeof(struct ti_i2c_desc) + |
685 | rom_desc->Size; | |
1da177e4 | 686 | |
2742fd88 AC |
687 | } while ((rom_desc->Type != I2C_DESC_TYPE_ION) && |
688 | (start_address < TI_MAX_I2C_SIZE)); | |
1da177e4 | 689 | |
2742fd88 AC |
690 | if ((rom_desc->Type != I2C_DESC_TYPE_ION) || |
691 | (start_address > TI_MAX_I2C_SIZE)) | |
1da177e4 LT |
692 | status = -ENODEV; |
693 | ||
2742fd88 AC |
694 | out: |
695 | kfree(buffer); | |
696 | kfree(rom_desc); | |
1da177e4 LT |
697 | return status; |
698 | } | |
699 | ||
2742fd88 | 700 | static int get_manuf_info(struct edgeport_serial *serial, __u8 *buffer) |
1da177e4 LT |
701 | { |
702 | int status; | |
703 | int start_address; | |
704 | struct ti_i2c_desc *rom_desc; | |
705 | struct edge_ti_manuf_descriptor *desc; | |
67e6da70 | 706 | struct device *dev = &serial->serial->dev->dev; |
1da177e4 | 707 | |
2742fd88 | 708 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
1da177e4 | 709 | if (!rom_desc) { |
67e6da70 | 710 | dev_err(dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
711 | return -ENOMEM; |
712 | } | |
2742fd88 AC |
713 | start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_ION, |
714 | rom_desc); | |
1da177e4 LT |
715 | |
716 | if (!start_address) { | |
67e6da70 | 717 | dev_dbg(dev, "%s - Edge Descriptor not found in I2C\n", __func__); |
1da177e4 LT |
718 | status = -ENODEV; |
719 | goto exit; | |
720 | } | |
721 | ||
2742fd88 AC |
722 | /* Read the descriptor data */ |
723 | status = read_rom(serial, start_address+sizeof(struct ti_i2c_desc), | |
724 | rom_desc->Size, buffer); | |
1da177e4 LT |
725 | if (status) |
726 | goto exit; | |
2742fd88 AC |
727 | |
728 | status = valid_csum(rom_desc, buffer); | |
729 | ||
1da177e4 | 730 | desc = (struct edge_ti_manuf_descriptor *)buffer; |
67e6da70 GKH |
731 | dev_dbg(dev, "%s - IonConfig 0x%x\n", __func__, desc->IonConfig); |
732 | dev_dbg(dev, "%s - Version %d\n", __func__, desc->Version); | |
733 | dev_dbg(dev, "%s - Cpu/Board 0x%x\n", __func__, desc->CpuRev_BoardRev); | |
734 | dev_dbg(dev, "%s - NumPorts %d\n", __func__, desc->NumPorts); | |
735 | dev_dbg(dev, "%s - NumVirtualPorts %d\n", __func__, desc->NumVirtualPorts); | |
736 | dev_dbg(dev, "%s - TotalPorts %d\n", __func__, desc->TotalPorts); | |
1da177e4 LT |
737 | |
738 | exit: | |
2742fd88 | 739 | kfree(rom_desc); |
1da177e4 LT |
740 | return status; |
741 | } | |
742 | ||
743 | /* Build firmware header used for firmware update */ | |
2742fd88 | 744 | static int build_i2c_fw_hdr(__u8 *header, struct device *dev) |
1da177e4 LT |
745 | { |
746 | __u8 *buffer; | |
747 | int buffer_size; | |
748 | int i; | |
d12b219a | 749 | int err; |
1da177e4 LT |
750 | __u8 cs = 0; |
751 | struct ti_i2c_desc *i2c_header; | |
752 | struct ti_i2c_image_header *img_header; | |
753 | struct ti_i2c_firmware_rec *firmware_rec; | |
d12b219a JS |
754 | const struct firmware *fw; |
755 | const char *fw_name = "edgeport/down3.bin"; | |
1da177e4 | 756 | |
2742fd88 AC |
757 | /* In order to update the I2C firmware we must change the type 2 record |
758 | * to type 0xF2. This will force the UMP to come up in Boot Mode. | |
759 | * Then while in boot mode, the driver will download the latest | |
760 | * firmware (padded to 15.5k) into the UMP ram. And finally when the | |
761 | * device comes back up in download mode the driver will cause the new | |
762 | * firmware to be copied from the UMP Ram to I2C and the firmware will | |
763 | * update the record type from 0xf2 to 0x02. | |
764 | */ | |
765 | ||
766 | /* Allocate a 15.5k buffer + 2 bytes for version number | |
767 | * (Firmware Record) */ | |
768 | buffer_size = (((1024 * 16) - 512 ) + | |
769 | sizeof(struct ti_i2c_firmware_rec)); | |
770 | ||
771 | buffer = kmalloc(buffer_size, GFP_KERNEL); | |
1da177e4 | 772 | if (!buffer) { |
2742fd88 | 773 | dev_err(dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
774 | return -ENOMEM; |
775 | } | |
2742fd88 | 776 | |
1da177e4 | 777 | // Set entire image of 0xffs |
2742fd88 | 778 | memset(buffer, 0xff, buffer_size); |
1da177e4 | 779 | |
d12b219a JS |
780 | err = request_firmware(&fw, fw_name, dev); |
781 | if (err) { | |
d9bb03dc GKH |
782 | dev_err(dev, "Failed to load image \"%s\" err %d\n", |
783 | fw_name, err); | |
d12b219a JS |
784 | kfree(buffer); |
785 | return err; | |
786 | } | |
787 | ||
788 | /* Save Download Version Number */ | |
789 | OperationalMajorVersion = fw->data[0]; | |
790 | OperationalMinorVersion = fw->data[1]; | |
791 | OperationalBuildNumber = fw->data[2] | (fw->data[3] << 8); | |
792 | ||
2742fd88 | 793 | /* Copy version number into firmware record */ |
1da177e4 LT |
794 | firmware_rec = (struct ti_i2c_firmware_rec *)buffer; |
795 | ||
d12b219a JS |
796 | firmware_rec->Ver_Major = OperationalMajorVersion; |
797 | firmware_rec->Ver_Minor = OperationalMinorVersion; | |
1da177e4 | 798 | |
2742fd88 | 799 | /* Pointer to fw_down memory image */ |
d12b219a | 800 | img_header = (struct ti_i2c_image_header *)&fw->data[4]; |
1da177e4 | 801 | |
2742fd88 | 802 | memcpy(buffer + sizeof(struct ti_i2c_firmware_rec), |
d12b219a | 803 | &fw->data[4 + sizeof(struct ti_i2c_image_header)], |
1da177e4 LT |
804 | le16_to_cpu(img_header->Length)); |
805 | ||
d12b219a JS |
806 | release_firmware(fw); |
807 | ||
1da177e4 LT |
808 | for (i=0; i < buffer_size; i++) { |
809 | cs = (__u8)(cs + buffer[i]); | |
810 | } | |
811 | ||
2742fd88 | 812 | kfree(buffer); |
1da177e4 | 813 | |
2742fd88 | 814 | /* Build new header */ |
1da177e4 LT |
815 | i2c_header = (struct ti_i2c_desc *)header; |
816 | firmware_rec = (struct ti_i2c_firmware_rec*)i2c_header->Data; | |
2742fd88 | 817 | |
1da177e4 LT |
818 | i2c_header->Type = I2C_DESC_TYPE_FIRMWARE_BLANK; |
819 | i2c_header->Size = (__u16)buffer_size; | |
820 | i2c_header->CheckSum = cs; | |
d12b219a JS |
821 | firmware_rec->Ver_Major = OperationalMajorVersion; |
822 | firmware_rec->Ver_Minor = OperationalMinorVersion; | |
1da177e4 LT |
823 | |
824 | return 0; | |
825 | } | |
826 | ||
827 | /* Try to figure out what type of I2c we have */ | |
2742fd88 | 828 | static int i2c_type_bootmode(struct edgeport_serial *serial) |
1da177e4 | 829 | { |
67e6da70 | 830 | struct device *dev = &serial->serial->dev->dev; |
1da177e4 | 831 | int status; |
e9305d2f JH |
832 | u8 *data; |
833 | ||
834 | data = kmalloc(1, GFP_KERNEL); | |
835 | if (!data) { | |
67e6da70 | 836 | dev_err(dev, "%s - out of memory\n", __func__); |
e9305d2f JH |
837 | return -ENOMEM; |
838 | } | |
2742fd88 AC |
839 | |
840 | /* Try to read type 2 */ | |
841 | status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, | |
e9305d2f | 842 | DTK_ADDR_SPACE_I2C_TYPE_II, 0, data, 0x01); |
1da177e4 | 843 | if (status) |
67e6da70 | 844 | dev_dbg(dev, "%s - read 2 status error = %d\n", __func__, status); |
1da177e4 | 845 | else |
67e6da70 | 846 | dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data); |
e9305d2f | 847 | if ((!status) && (*data == UMP5152 || *data == UMP3410)) { |
67e6da70 | 848 | dev_dbg(dev, "%s - ROM_TYPE_II\n", __func__); |
1da177e4 | 849 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
e9305d2f | 850 | goto out; |
1da177e4 LT |
851 | } |
852 | ||
2742fd88 AC |
853 | /* Try to read type 3 */ |
854 | status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, | |
e9305d2f | 855 | DTK_ADDR_SPACE_I2C_TYPE_III, 0, data, 0x01); |
1da177e4 | 856 | if (status) |
67e6da70 | 857 | dev_dbg(dev, "%s - read 3 status error = %d\n", __func__, status); |
1da177e4 | 858 | else |
67e6da70 | 859 | dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data); |
e9305d2f | 860 | if ((!status) && (*data == UMP5152 || *data == UMP3410)) { |
67e6da70 | 861 | dev_dbg(dev, "%s - ROM_TYPE_III\n", __func__); |
1da177e4 | 862 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III; |
e9305d2f | 863 | goto out; |
1da177e4 LT |
864 | } |
865 | ||
67e6da70 | 866 | dev_dbg(dev, "%s - Unknown\n", __func__); |
1da177e4 | 867 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
e9305d2f JH |
868 | status = -ENODEV; |
869 | out: | |
870 | kfree(data); | |
871 | return status; | |
1da177e4 LT |
872 | } |
873 | ||
2742fd88 AC |
874 | static int bulk_xfer(struct usb_serial *serial, void *buffer, |
875 | int length, int *num_sent) | |
1da177e4 LT |
876 | { |
877 | int status; | |
878 | ||
2742fd88 AC |
879 | status = usb_bulk_msg(serial->dev, |
880 | usb_sndbulkpipe(serial->dev, | |
881 | serial->port[0]->bulk_out_endpointAddress), | |
882 | buffer, length, num_sent, 1000); | |
1da177e4 LT |
883 | return status; |
884 | } | |
885 | ||
886 | /* Download given firmware image to the device (IN BOOT MODE) */ | |
2742fd88 AC |
887 | static int download_code(struct edgeport_serial *serial, __u8 *image, |
888 | int image_length) | |
1da177e4 LT |
889 | { |
890 | int status = 0; | |
891 | int pos; | |
892 | int transfer; | |
893 | int done; | |
894 | ||
2742fd88 | 895 | /* Transfer firmware image */ |
1da177e4 | 896 | for (pos = 0; pos < image_length; ) { |
2742fd88 | 897 | /* Read the next buffer from file */ |
1da177e4 LT |
898 | transfer = image_length - pos; |
899 | if (transfer > EDGE_FW_BULK_MAX_PACKET_SIZE) | |
900 | transfer = EDGE_FW_BULK_MAX_PACKET_SIZE; | |
901 | ||
2742fd88 AC |
902 | /* Transfer data */ |
903 | status = bulk_xfer(serial->serial, &image[pos], | |
904 | transfer, &done); | |
1da177e4 LT |
905 | if (status) |
906 | break; | |
2742fd88 | 907 | /* Advance buffer pointer */ |
1da177e4 LT |
908 | pos += done; |
909 | } | |
910 | ||
911 | return status; | |
912 | } | |
913 | ||
2742fd88 AC |
914 | /* FIXME!!! */ |
915 | static int config_boot_dev(struct usb_device *dev) | |
1da177e4 LT |
916 | { |
917 | return 0; | |
918 | } | |
919 | ||
2742fd88 AC |
920 | static int ti_cpu_rev(struct edge_ti_manuf_descriptor *desc) |
921 | { | |
922 | return TI_GET_CPU_REVISION(desc->CpuRev_BoardRev); | |
923 | } | |
924 | ||
1da177e4 LT |
925 | /** |
926 | * DownloadTIFirmware - Download run-time operating firmware to the TI5052 | |
2742fd88 | 927 | * |
1da177e4 LT |
928 | * This routine downloads the main operating code into the TI5052, using the |
929 | * boot code already burned into E2PROM or ROM. | |
930 | */ | |
2742fd88 | 931 | static int download_fw(struct edgeport_serial *serial) |
1da177e4 LT |
932 | { |
933 | struct device *dev = &serial->serial->dev->dev; | |
934 | int status = 0; | |
935 | int start_address; | |
936 | struct edge_ti_manuf_descriptor *ti_manuf_desc; | |
937 | struct usb_interface_descriptor *interface; | |
938 | int download_cur_ver; | |
939 | int download_new_ver; | |
940 | ||
941 | /* This routine is entered by both the BOOT mode and the Download mode | |
942 | * We can determine which code is running by the reading the config | |
943 | * descriptor and if we have only one bulk pipe it is in boot mode | |
944 | */ | |
945 | serial->product_info.hardware_type = HARDWARE_TYPE_TIUMP; | |
946 | ||
947 | /* Default to type 2 i2c */ | |
948 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; | |
949 | ||
2742fd88 | 950 | status = choose_config(serial->serial->dev); |
1da177e4 LT |
951 | if (status) |
952 | return status; | |
953 | ||
954 | interface = &serial->serial->interface->cur_altsetting->desc; | |
955 | if (!interface) { | |
2742fd88 | 956 | dev_err(dev, "%s - no interface set, error!\n", __func__); |
1da177e4 LT |
957 | return -ENODEV; |
958 | } | |
959 | ||
2742fd88 AC |
960 | /* |
961 | * Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING | |
962 | * if we have more than one endpoint we are definitely in download | |
963 | * mode | |
964 | */ | |
1da177e4 LT |
965 | if (interface->bNumEndpoints > 1) |
966 | serial->product_info.TiMode = TI_MODE_DOWNLOAD; | |
967 | else | |
2742fd88 | 968 | /* Otherwise we will remain in configuring mode */ |
1da177e4 LT |
969 | serial->product_info.TiMode = TI_MODE_CONFIGURING; |
970 | ||
1da177e4 LT |
971 | /********************************************************************/ |
972 | /* Download Mode */ | |
973 | /********************************************************************/ | |
974 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { | |
975 | struct ti_i2c_desc *rom_desc; | |
976 | ||
67e6da70 | 977 | dev_dbg(dev, "%s - RUNNING IN DOWNLOAD MODE\n", __func__); |
1da177e4 | 978 | |
2742fd88 | 979 | status = check_i2c_image(serial); |
1da177e4 | 980 | if (status) { |
67e6da70 | 981 | dev_dbg(dev, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__); |
1da177e4 LT |
982 | return status; |
983 | } | |
2742fd88 | 984 | |
1da177e4 LT |
985 | /* Validate Hardware version number |
986 | * Read Manufacturing Descriptor from TI Based Edgeport | |
987 | */ | |
2742fd88 | 988 | ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); |
1da177e4 | 989 | if (!ti_manuf_desc) { |
2742fd88 | 990 | dev_err(dev, "%s - out of memory.\n", __func__); |
1da177e4 LT |
991 | return -ENOMEM; |
992 | } | |
2742fd88 | 993 | status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); |
1da177e4 | 994 | if (status) { |
2742fd88 | 995 | kfree(ti_manuf_desc); |
1da177e4 LT |
996 | return status; |
997 | } | |
998 | ||
2742fd88 AC |
999 | /* Check version number of ION descriptor */ |
1000 | if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { | |
67e6da70 | 1001 | dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n", |
2742fd88 AC |
1002 | __func__, ti_cpu_rev(ti_manuf_desc)); |
1003 | kfree(ti_manuf_desc); | |
1004 | return -EINVAL; | |
1005 | } | |
1da177e4 | 1006 | |
2742fd88 | 1007 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
1da177e4 | 1008 | if (!rom_desc) { |
2742fd88 AC |
1009 | dev_err(dev, "%s - out of memory.\n", __func__); |
1010 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1011 | return -ENOMEM; |
1012 | } | |
1013 | ||
2742fd88 AC |
1014 | /* Search for type 2 record (firmware record) */ |
1015 | start_address = get_descriptor_addr(serial, | |
1016 | I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc); | |
1017 | if (start_address != 0) { | |
1da177e4 | 1018 | struct ti_i2c_firmware_rec *firmware_version; |
e9305d2f | 1019 | u8 *record; |
1da177e4 | 1020 | |
67e6da70 | 1021 | dev_dbg(dev, "%s - Found Type FIRMWARE (Type 2) record\n", __func__); |
1da177e4 | 1022 | |
2742fd88 AC |
1023 | firmware_version = kmalloc(sizeof(*firmware_version), |
1024 | GFP_KERNEL); | |
1da177e4 | 1025 | if (!firmware_version) { |
2742fd88 AC |
1026 | dev_err(dev, "%s - out of memory.\n", __func__); |
1027 | kfree(rom_desc); | |
1028 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1029 | return -ENOMEM; |
1030 | } | |
1031 | ||
2742fd88 AC |
1032 | /* Validate version number |
1033 | * Read the descriptor data | |
1034 | */ | |
1035 | status = read_rom(serial, start_address + | |
1036 | sizeof(struct ti_i2c_desc), | |
1da177e4 LT |
1037 | sizeof(struct ti_i2c_firmware_rec), |
1038 | (__u8 *)firmware_version); | |
1039 | if (status) { | |
2742fd88 AC |
1040 | kfree(firmware_version); |
1041 | kfree(rom_desc); | |
1042 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1043 | return status; |
1044 | } | |
1045 | ||
2742fd88 AC |
1046 | /* Check version number of download with current |
1047 | version in I2c */ | |
1048 | download_cur_ver = (firmware_version->Ver_Major << 8) + | |
1da177e4 | 1049 | (firmware_version->Ver_Minor); |
d12b219a JS |
1050 | download_new_ver = (OperationalMajorVersion << 8) + |
1051 | (OperationalMinorVersion); | |
1da177e4 | 1052 | |
67e6da70 GKH |
1053 | dev_dbg(dev, "%s - >> FW Versions Device %d.%d Driver %d.%d\n", |
1054 | __func__, firmware_version->Ver_Major, | |
1055 | firmware_version->Ver_Minor, | |
1056 | OperationalMajorVersion, | |
1057 | OperationalMinorVersion); | |
1da177e4 | 1058 | |
2742fd88 AC |
1059 | /* Check if we have an old version in the I2C and |
1060 | update if necessary */ | |
0827a9ff | 1061 | if (download_cur_ver < download_new_ver) { |
67e6da70 GKH |
1062 | dev_dbg(dev, "%s - Update I2C dld from %d.%d to %d.%d\n", |
1063 | __func__, | |
1064 | firmware_version->Ver_Major, | |
1065 | firmware_version->Ver_Minor, | |
1066 | OperationalMajorVersion, | |
1067 | OperationalMinorVersion); | |
2742fd88 | 1068 | |
e9305d2f JH |
1069 | record = kmalloc(1, GFP_KERNEL); |
1070 | if (!record) { | |
1071 | dev_err(dev, "%s - out of memory.\n", | |
1072 | __func__); | |
1073 | kfree(firmware_version); | |
1074 | kfree(rom_desc); | |
1075 | kfree(ti_manuf_desc); | |
1076 | return -ENOMEM; | |
1077 | } | |
2742fd88 AC |
1078 | /* In order to update the I2C firmware we must |
1079 | * change the type 2 record to type 0xF2. This | |
1080 | * will force the UMP to come up in Boot Mode. | |
1081 | * Then while in boot mode, the driver will | |
1082 | * download the latest firmware (padded to | |
1083 | * 15.5k) into the UMP ram. Finally when the | |
1084 | * device comes back up in download mode the | |
1085 | * driver will cause the new firmware to be | |
1086 | * copied from the UMP Ram to I2C and the | |
1087 | * firmware will update the record type from | |
1088 | * 0xf2 to 0x02. | |
1089 | */ | |
e9305d2f | 1090 | *record = I2C_DESC_TYPE_FIRMWARE_BLANK; |
1da177e4 | 1091 | |
2742fd88 AC |
1092 | /* Change the I2C Firmware record type to |
1093 | 0xf2 to trigger an update */ | |
1094 | status = write_rom(serial, start_address, | |
e9305d2f | 1095 | sizeof(*record), record); |
1da177e4 | 1096 | if (status) { |
e9305d2f | 1097 | kfree(record); |
2742fd88 AC |
1098 | kfree(firmware_version); |
1099 | kfree(rom_desc); | |
1100 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1101 | return status; |
1102 | } | |
1103 | ||
2742fd88 AC |
1104 | /* verify the write -- must do this in order |
1105 | * for write to complete before we do the | |
1106 | * hardware reset | |
1107 | */ | |
1108 | status = read_rom(serial, | |
1da177e4 | 1109 | start_address, |
e9305d2f JH |
1110 | sizeof(*record), |
1111 | record); | |
1da177e4 | 1112 | if (status) { |
e9305d2f | 1113 | kfree(record); |
2742fd88 AC |
1114 | kfree(firmware_version); |
1115 | kfree(rom_desc); | |
1116 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1117 | return status; |
1118 | } | |
1119 | ||
e9305d2f | 1120 | if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) { |
67e6da70 | 1121 | dev_err(dev, "%s - error resetting device\n", __func__); |
e9305d2f | 1122 | kfree(record); |
2742fd88 AC |
1123 | kfree(firmware_version); |
1124 | kfree(rom_desc); | |
1125 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1126 | return -ENODEV; |
1127 | } | |
1128 | ||
67e6da70 | 1129 | dev_dbg(dev, "%s - HARDWARE RESET\n", __func__); |
1da177e4 | 1130 | |
2742fd88 AC |
1131 | /* Reset UMP -- Back to BOOT MODE */ |
1132 | status = ti_vsend_sync(serial->serial->dev, | |
1133 | UMPC_HARDWARE_RESET, | |
1134 | 0, 0, NULL, 0); | |
1da177e4 | 1135 | |
67e6da70 | 1136 | dev_dbg(dev, "%s - HARDWARE RESET return %d\n", __func__, status); |
1da177e4 LT |
1137 | |
1138 | /* return an error on purpose. */ | |
e9305d2f | 1139 | kfree(record); |
2742fd88 AC |
1140 | kfree(firmware_version); |
1141 | kfree(rom_desc); | |
1142 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1143 | return -ENODEV; |
1144 | } | |
2742fd88 | 1145 | kfree(firmware_version); |
1da177e4 | 1146 | } |
2742fd88 AC |
1147 | /* Search for type 0xF2 record (firmware blank record) */ |
1148 | else if ((start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc)) != 0) { | |
1149 | #define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \ | |
1150 | sizeof(struct ti_i2c_firmware_rec)) | |
1da177e4 LT |
1151 | __u8 *header; |
1152 | __u8 *vheader; | |
1153 | ||
2742fd88 | 1154 | header = kmalloc(HEADER_SIZE, GFP_KERNEL); |
1da177e4 | 1155 | if (!header) { |
2742fd88 AC |
1156 | dev_err(dev, "%s - out of memory.\n", __func__); |
1157 | kfree(rom_desc); | |
1158 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1159 | return -ENOMEM; |
1160 | } | |
2742fd88 AC |
1161 | |
1162 | vheader = kmalloc(HEADER_SIZE, GFP_KERNEL); | |
1da177e4 | 1163 | if (!vheader) { |
2742fd88 AC |
1164 | dev_err(dev, "%s - out of memory.\n", __func__); |
1165 | kfree(header); | |
1166 | kfree(rom_desc); | |
1167 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1168 | return -ENOMEM; |
1169 | } | |
2742fd88 | 1170 | |
67e6da70 | 1171 | dev_dbg(dev, "%s - Found Type BLANK FIRMWARE (Type F2) record\n", __func__); |
2742fd88 AC |
1172 | |
1173 | /* | |
1174 | * In order to update the I2C firmware we must change | |
1175 | * the type 2 record to type 0xF2. This will force the | |
1176 | * UMP to come up in Boot Mode. Then while in boot | |
1177 | * mode, the driver will download the latest firmware | |
1178 | * (padded to 15.5k) into the UMP ram. Finally when the | |
1179 | * device comes back up in download mode the driver | |
1180 | * will cause the new firmware to be copied from the | |
1181 | * UMP Ram to I2C and the firmware will update the | |
1182 | * record type from 0xf2 to 0x02. | |
1183 | */ | |
1184 | status = build_i2c_fw_hdr(header, dev); | |
1da177e4 | 1185 | if (status) { |
2742fd88 AC |
1186 | kfree(vheader); |
1187 | kfree(header); | |
1188 | kfree(rom_desc); | |
1189 | kfree(ti_manuf_desc); | |
fd6e5bbb | 1190 | return -EINVAL; |
1da177e4 LT |
1191 | } |
1192 | ||
2742fd88 AC |
1193 | /* Update I2C with type 0xf2 record with correct |
1194 | size and checksum */ | |
1195 | status = write_rom(serial, | |
1da177e4 LT |
1196 | start_address, |
1197 | HEADER_SIZE, | |
1198 | header); | |
1199 | if (status) { | |
2742fd88 AC |
1200 | kfree(vheader); |
1201 | kfree(header); | |
1202 | kfree(rom_desc); | |
1203 | kfree(ti_manuf_desc); | |
9800eb33 | 1204 | return -EINVAL; |
1da177e4 LT |
1205 | } |
1206 | ||
2742fd88 AC |
1207 | /* verify the write -- must do this in order for |
1208 | write to complete before we do the hardware reset */ | |
1209 | status = read_rom(serial, start_address, | |
1210 | HEADER_SIZE, vheader); | |
1da177e4 LT |
1211 | |
1212 | if (status) { | |
67e6da70 | 1213 | dev_dbg(dev, "%s - can't read header back\n", __func__); |
2742fd88 AC |
1214 | kfree(vheader); |
1215 | kfree(header); | |
1216 | kfree(rom_desc); | |
1217 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1218 | return status; |
1219 | } | |
1220 | if (memcmp(vheader, header, HEADER_SIZE)) { | |
67e6da70 | 1221 | dev_dbg(dev, "%s - write download record failed\n", __func__); |
2742fd88 AC |
1222 | kfree(vheader); |
1223 | kfree(header); | |
1224 | kfree(rom_desc); | |
1225 | kfree(ti_manuf_desc); | |
1e29709e | 1226 | return -EINVAL; |
1da177e4 LT |
1227 | } |
1228 | ||
2742fd88 AC |
1229 | kfree(vheader); |
1230 | kfree(header); | |
1da177e4 | 1231 | |
67e6da70 | 1232 | dev_dbg(dev, "%s - Start firmware update\n", __func__); |
1da177e4 | 1233 | |
2742fd88 AC |
1234 | /* Tell firmware to copy download image into I2C */ |
1235 | status = ti_vsend_sync(serial->serial->dev, | |
1236 | UMPC_COPY_DNLD_TO_I2C, 0, 0, NULL, 0); | |
1da177e4 | 1237 | |
67e6da70 | 1238 | dev_dbg(dev, "%s - Update complete 0x%x\n", __func__, status); |
1da177e4 | 1239 | if (status) { |
2742fd88 AC |
1240 | dev_err(dev, |
1241 | "%s - UMPC_COPY_DNLD_TO_I2C failed\n", | |
1242 | __func__); | |
1243 | kfree(rom_desc); | |
1244 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1245 | return status; |
1246 | } | |
1247 | } | |
1248 | ||
1249 | // The device is running the download code | |
2742fd88 AC |
1250 | kfree(rom_desc); |
1251 | kfree(ti_manuf_desc); | |
1da177e4 LT |
1252 | return 0; |
1253 | } | |
1254 | ||
1255 | /********************************************************************/ | |
1256 | /* Boot Mode */ | |
1257 | /********************************************************************/ | |
67e6da70 | 1258 | dev_dbg(dev, "%s - RUNNING IN BOOT MODE\n", __func__); |
1da177e4 | 1259 | |
2742fd88 AC |
1260 | /* Configure the TI device so we can use the BULK pipes for download */ |
1261 | status = config_boot_dev(serial->serial->dev); | |
1da177e4 LT |
1262 | if (status) |
1263 | return status; | |
1264 | ||
2742fd88 AC |
1265 | if (le16_to_cpu(serial->serial->dev->descriptor.idVendor) |
1266 | != USB_VENDOR_ID_ION) { | |
67e6da70 GKH |
1267 | dev_dbg(dev, "%s - VID = 0x%x\n", __func__, |
1268 | le16_to_cpu(serial->serial->dev->descriptor.idVendor)); | |
1da177e4 | 1269 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
2742fd88 | 1270 | goto stayinbootmode; |
1da177e4 LT |
1271 | } |
1272 | ||
2742fd88 AC |
1273 | /* We have an ION device (I2c Must be programmed) |
1274 | Determine I2C image type */ | |
1275 | if (i2c_type_bootmode(serial)) | |
1276 | goto stayinbootmode; | |
1da177e4 | 1277 | |
2742fd88 AC |
1278 | /* Check for ION Vendor ID and that the I2C is valid */ |
1279 | if (!check_i2c_image(serial)) { | |
1da177e4 LT |
1280 | struct ti_i2c_image_header *header; |
1281 | int i; | |
1282 | __u8 cs = 0; | |
1283 | __u8 *buffer; | |
1284 | int buffer_size; | |
d12b219a JS |
1285 | int err; |
1286 | const struct firmware *fw; | |
1287 | const char *fw_name = "edgeport/down3.bin"; | |
1da177e4 LT |
1288 | |
1289 | /* Validate Hardware version number | |
1290 | * Read Manufacturing Descriptor from TI Based Edgeport | |
1291 | */ | |
2742fd88 | 1292 | ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); |
1da177e4 | 1293 | if (!ti_manuf_desc) { |
2742fd88 | 1294 | dev_err(dev, "%s - out of memory.\n", __func__); |
1da177e4 LT |
1295 | return -ENOMEM; |
1296 | } | |
2742fd88 | 1297 | status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); |
1da177e4 | 1298 | if (status) { |
2742fd88 AC |
1299 | kfree(ti_manuf_desc); |
1300 | goto stayinbootmode; | |
1da177e4 LT |
1301 | } |
1302 | ||
2742fd88 AC |
1303 | /* Check for version 2 */ |
1304 | if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { | |
67e6da70 GKH |
1305 | dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n", |
1306 | __func__, ti_cpu_rev(ti_manuf_desc)); | |
2742fd88 AC |
1307 | kfree(ti_manuf_desc); |
1308 | goto stayinbootmode; | |
1da177e4 LT |
1309 | } |
1310 | ||
2742fd88 | 1311 | kfree(ti_manuf_desc); |
1da177e4 | 1312 | |
1da177e4 | 1313 | /* |
2742fd88 AC |
1314 | * In order to update the I2C firmware we must change the type |
1315 | * 2 record to type 0xF2. This will force the UMP to come up | |
1316 | * in Boot Mode. Then while in boot mode, the driver will | |
1317 | * download the latest firmware (padded to 15.5k) into the | |
1318 | * UMP ram. Finally when the device comes back up in download | |
1319 | * mode the driver will cause the new firmware to be copied | |
1320 | * from the UMP Ram to I2C and the firmware will update the | |
1321 | * record type from 0xf2 to 0x02. | |
1322 | * | |
1da177e4 LT |
1323 | * Do we really have to copy the whole firmware image, |
1324 | * or could we do this in place! | |
1325 | */ | |
1326 | ||
2742fd88 AC |
1327 | /* Allocate a 15.5k buffer + 3 byte header */ |
1328 | buffer_size = (((1024 * 16) - 512) + | |
1329 | sizeof(struct ti_i2c_image_header)); | |
1330 | buffer = kmalloc(buffer_size, GFP_KERNEL); | |
1da177e4 | 1331 | if (!buffer) { |
2742fd88 | 1332 | dev_err(dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
1333 | return -ENOMEM; |
1334 | } | |
2742fd88 AC |
1335 | |
1336 | /* Initialize the buffer to 0xff (pad the buffer) */ | |
1337 | memset(buffer, 0xff, buffer_size); | |
1da177e4 | 1338 | |
d12b219a JS |
1339 | err = request_firmware(&fw, fw_name, dev); |
1340 | if (err) { | |
d9bb03dc GKH |
1341 | dev_err(dev, "Failed to load image \"%s\" err %d\n", |
1342 | fw_name, err); | |
d12b219a JS |
1343 | kfree(buffer); |
1344 | return err; | |
1345 | } | |
1346 | memcpy(buffer, &fw->data[4], fw->size - 4); | |
1347 | release_firmware(fw); | |
1da177e4 | 1348 | |
2742fd88 AC |
1349 | for (i = sizeof(struct ti_i2c_image_header); |
1350 | i < buffer_size; i++) { | |
1da177e4 LT |
1351 | cs = (__u8)(cs + buffer[i]); |
1352 | } | |
2742fd88 | 1353 | |
1da177e4 | 1354 | header = (struct ti_i2c_image_header *)buffer; |
2742fd88 AC |
1355 | |
1356 | /* update length and checksum after padding */ | |
1357 | header->Length = cpu_to_le16((__u16)(buffer_size - | |
1358 | sizeof(struct ti_i2c_image_header))); | |
1da177e4 LT |
1359 | header->CheckSum = cs; |
1360 | ||
2742fd88 | 1361 | /* Download the operational code */ |
67e6da70 | 1362 | dev_dbg(dev, "%s - Downloading operational code image (TI UMP)\n", __func__); |
2742fd88 | 1363 | status = download_code(serial, buffer, buffer_size); |
1da177e4 | 1364 | |
2742fd88 | 1365 | kfree(buffer); |
1da177e4 LT |
1366 | |
1367 | if (status) { | |
67e6da70 | 1368 | dev_dbg(dev, "%s - Error downloading operational code image\n", __func__); |
1da177e4 LT |
1369 | return status; |
1370 | } | |
1371 | ||
2742fd88 | 1372 | /* Device will reboot */ |
1da177e4 LT |
1373 | serial->product_info.TiMode = TI_MODE_TRANSITIONING; |
1374 | ||
67e6da70 | 1375 | dev_dbg(dev, "%s - Download successful -- Device rebooting...\n", __func__); |
1da177e4 LT |
1376 | |
1377 | /* return an error on purpose */ | |
1378 | return -ENODEV; | |
1379 | } | |
1380 | ||
2742fd88 AC |
1381 | stayinbootmode: |
1382 | /* Eprom is invalid or blank stay in boot mode */ | |
67e6da70 | 1383 | dev_dbg(dev, "%s - STAYING IN BOOT MODE\n", __func__); |
1da177e4 LT |
1384 | serial->product_info.TiMode = TI_MODE_BOOT; |
1385 | ||
1386 | return 0; | |
1387 | } | |
1388 | ||
1389 | ||
2742fd88 | 1390 | static int ti_do_config(struct edgeport_port *port, int feature, int on) |
1da177e4 | 1391 | { |
1143832e GKH |
1392 | int port_number = port->port->port_number; |
1393 | ||
2742fd88 AC |
1394 | on = !!on; /* 1 or 0 not bitmask */ |
1395 | return send_cmd(port->port->serial->dev, | |
1396 | feature, (__u8)(UMPM_UART1_PORT + port_number), | |
1397 | on, NULL, 0); | |
1da177e4 LT |
1398 | } |
1399 | ||
1da177e4 | 1400 | |
2742fd88 | 1401 | static int restore_mcr(struct edgeport_port *port, __u8 mcr) |
1da177e4 LT |
1402 | { |
1403 | int status = 0; | |
1404 | ||
67e6da70 | 1405 | dev_dbg(&port->port->dev, "%s - %x\n", __func__, mcr); |
1da177e4 | 1406 | |
2742fd88 | 1407 | status = ti_do_config(port, UMPC_SET_CLR_DTR, mcr & MCR_DTR); |
1da177e4 LT |
1408 | if (status) |
1409 | return status; | |
2742fd88 | 1410 | status = ti_do_config(port, UMPC_SET_CLR_RTS, mcr & MCR_RTS); |
1da177e4 LT |
1411 | if (status) |
1412 | return status; | |
2742fd88 | 1413 | return ti_do_config(port, UMPC_SET_CLR_LOOPBACK, mcr & MCR_LOOPBACK); |
1da177e4 LT |
1414 | } |
1415 | ||
1da177e4 | 1416 | /* Convert TI LSR to standard UART flags */ |
2742fd88 | 1417 | static __u8 map_line_status(__u8 ti_lsr) |
1da177e4 LT |
1418 | { |
1419 | __u8 lsr = 0; | |
1420 | ||
1421 | #define MAP_FLAG(flagUmp, flagUart) \ | |
1422 | if (ti_lsr & flagUmp) \ | |
1423 | lsr |= flagUart; | |
1424 | ||
1425 | MAP_FLAG(UMP_UART_LSR_OV_MASK, LSR_OVER_ERR) /* overrun */ | |
1426 | MAP_FLAG(UMP_UART_LSR_PE_MASK, LSR_PAR_ERR) /* parity error */ | |
1427 | MAP_FLAG(UMP_UART_LSR_FE_MASK, LSR_FRM_ERR) /* framing error */ | |
1428 | MAP_FLAG(UMP_UART_LSR_BR_MASK, LSR_BREAK) /* break detected */ | |
2742fd88 AC |
1429 | MAP_FLAG(UMP_UART_LSR_RX_MASK, LSR_RX_AVAIL) /* rx data available */ |
1430 | MAP_FLAG(UMP_UART_LSR_TX_MASK, LSR_TX_EMPTY) /* tx hold reg empty */ | |
1da177e4 LT |
1431 | |
1432 | #undef MAP_FLAG | |
1433 | ||
1434 | return lsr; | |
1435 | } | |
1436 | ||
2742fd88 | 1437 | static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr) |
1da177e4 LT |
1438 | { |
1439 | struct async_icount *icount; | |
1440 | struct tty_struct *tty; | |
1441 | ||
67e6da70 | 1442 | dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, msr); |
1da177e4 | 1443 | |
2742fd88 AC |
1444 | if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | |
1445 | EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { | |
cf9a9d66 | 1446 | icount = &edge_port->port->icount; |
1da177e4 LT |
1447 | |
1448 | /* update input line counters */ | |
1449 | if (msr & EDGEPORT_MSR_DELTA_CTS) | |
1450 | icount->cts++; | |
1451 | if (msr & EDGEPORT_MSR_DELTA_DSR) | |
1452 | icount->dsr++; | |
1453 | if (msr & EDGEPORT_MSR_DELTA_CD) | |
1454 | icount->dcd++; | |
1455 | if (msr & EDGEPORT_MSR_DELTA_RI) | |
1456 | icount->rng++; | |
48ee5801 | 1457 | wake_up_interruptible(&edge_port->port->port.delta_msr_wait); |
1da177e4 LT |
1458 | } |
1459 | ||
1460 | /* Save the new modem status */ | |
1461 | edge_port->shadow_msr = msr & 0xf0; | |
1462 | ||
4a90f09b | 1463 | tty = tty_port_tty_get(&edge_port->port->port); |
1da177e4 LT |
1464 | /* handle CTS flow control */ |
1465 | if (tty && C_CRTSCTS(tty)) { | |
1466 | if (msr & EDGEPORT_MSR_CTS) { | |
1467 | tty->hw_stopped = 0; | |
1468 | tty_wakeup(tty); | |
1469 | } else { | |
1470 | tty->hw_stopped = 1; | |
1471 | } | |
1472 | } | |
4a90f09b | 1473 | tty_kref_put(tty); |
1da177e4 LT |
1474 | } |
1475 | ||
2742fd88 AC |
1476 | static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data, |
1477 | __u8 lsr, __u8 data) | |
1da177e4 LT |
1478 | { |
1479 | struct async_icount *icount; | |
2742fd88 AC |
1480 | __u8 new_lsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR | |
1481 | LSR_FRM_ERR | LSR_BREAK)); | |
1da177e4 | 1482 | |
67e6da70 | 1483 | dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr); |
1da177e4 LT |
1484 | |
1485 | edge_port->shadow_lsr = lsr; | |
1486 | ||
2742fd88 | 1487 | if (new_lsr & LSR_BREAK) |
1da177e4 LT |
1488 | /* |
1489 | * Parity and Framing errors only count if they | |
1490 | * occur exclusive of a break being received. | |
1491 | */ | |
1492 | new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK); | |
1da177e4 LT |
1493 | |
1494 | /* Place LSR data byte into Rx buffer */ | |
2e124b4a JS |
1495 | if (lsr_data) |
1496 | edge_tty_recv(edge_port->port, &data, 1); | |
1da177e4 LT |
1497 | |
1498 | /* update input line counters */ | |
cf9a9d66 | 1499 | icount = &edge_port->port->icount; |
1da177e4 LT |
1500 | if (new_lsr & LSR_BREAK) |
1501 | icount->brk++; | |
1502 | if (new_lsr & LSR_OVER_ERR) | |
1503 | icount->overrun++; | |
1504 | if (new_lsr & LSR_PAR_ERR) | |
1505 | icount->parity++; | |
1506 | if (new_lsr & LSR_FRM_ERR) | |
1507 | icount->frame++; | |
1508 | } | |
1509 | ||
1510 | ||
2742fd88 | 1511 | static void edge_interrupt_callback(struct urb *urb) |
1da177e4 | 1512 | { |
cdc97792 | 1513 | struct edgeport_serial *edge_serial = urb->context; |
1da177e4 LT |
1514 | struct usb_serial_port *port; |
1515 | struct edgeport_port *edge_port; | |
67e6da70 | 1516 | struct device *dev; |
1da177e4 LT |
1517 | unsigned char *data = urb->transfer_buffer; |
1518 | int length = urb->actual_length; | |
1519 | int port_number; | |
1520 | int function; | |
ee337c21 | 1521 | int retval; |
1da177e4 LT |
1522 | __u8 lsr; |
1523 | __u8 msr; | |
ee337c21 | 1524 | int status = urb->status; |
1da177e4 | 1525 | |
ee337c21 | 1526 | switch (status) { |
1da177e4 LT |
1527 | case 0: |
1528 | /* success */ | |
1529 | break; | |
1530 | case -ECONNRESET: | |
1531 | case -ENOENT: | |
1532 | case -ESHUTDOWN: | |
1533 | /* this urb is terminated, clean up */ | |
67e6da70 | 1534 | dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", |
441b62c1 | 1535 | __func__, status); |
1da177e4 LT |
1536 | return; |
1537 | default: | |
ee337c21 | 1538 | dev_err(&urb->dev->dev, "%s - nonzero urb status received: " |
441b62c1 | 1539 | "%d\n", __func__, status); |
1da177e4 LT |
1540 | goto exit; |
1541 | } | |
1542 | ||
1543 | if (!length) { | |
67e6da70 | 1544 | dev_dbg(&urb->dev->dev, "%s - no data in urb\n", __func__); |
1da177e4 LT |
1545 | goto exit; |
1546 | } | |
2742fd88 | 1547 | |
67e6da70 | 1548 | dev = &edge_serial->serial->dev->dev; |
59d33f2f | 1549 | usb_serial_debug_data(dev, __func__, length, data); |
2742fd88 | 1550 | |
1da177e4 | 1551 | if (length != 2) { |
67e6da70 | 1552 | dev_dbg(dev, "%s - expecting packet of size 2, got %d\n", __func__, length); |
1da177e4 LT |
1553 | goto exit; |
1554 | } | |
1555 | ||
2742fd88 AC |
1556 | port_number = TIUMP_GET_PORT_FROM_CODE(data[0]); |
1557 | function = TIUMP_GET_FUNC_FROM_CODE(data[0]); | |
67e6da70 GKH |
1558 | dev_dbg(dev, "%s - port_number %d, function %d, info 0x%x\n", __func__, |
1559 | port_number, function, data[1]); | |
1da177e4 LT |
1560 | port = edge_serial->serial->port[port_number]; |
1561 | edge_port = usb_get_serial_port_data(port); | |
1562 | if (!edge_port) { | |
67e6da70 | 1563 | dev_dbg(dev, "%s - edge_port not found\n", __func__); |
1da177e4 LT |
1564 | return; |
1565 | } | |
1566 | switch (function) { | |
1567 | case TIUMP_INTERRUPT_CODE_LSR: | |
2742fd88 | 1568 | lsr = map_line_status(data[1]); |
1da177e4 | 1569 | if (lsr & UMP_UART_LSR_DATA_MASK) { |
2742fd88 AC |
1570 | /* Save the LSR event for bulk read |
1571 | completion routine */ | |
67e6da70 GKH |
1572 | dev_dbg(dev, "%s - LSR Event Port %u LSR Status = %02x\n", |
1573 | __func__, port_number, lsr); | |
1da177e4 LT |
1574 | edge_port->lsr_event = 1; |
1575 | edge_port->lsr_mask = lsr; | |
1576 | } else { | |
67e6da70 GKH |
1577 | dev_dbg(dev, "%s - ===== Port %d LSR Status = %02x ======\n", |
1578 | __func__, port_number, lsr); | |
2742fd88 | 1579 | handle_new_lsr(edge_port, 0, lsr, 0); |
1da177e4 LT |
1580 | } |
1581 | break; | |
1582 | ||
2742fd88 | 1583 | case TIUMP_INTERRUPT_CODE_MSR: /* MSR */ |
1da177e4 LT |
1584 | /* Copy MSR from UMP */ |
1585 | msr = data[1]; | |
67e6da70 GKH |
1586 | dev_dbg(dev, "%s - ===== Port %u MSR Status = %02x ======\n", |
1587 | __func__, port_number, msr); | |
2742fd88 | 1588 | handle_new_msr(edge_port, msr); |
1da177e4 LT |
1589 | break; |
1590 | ||
1591 | default: | |
2742fd88 AC |
1592 | dev_err(&urb->dev->dev, |
1593 | "%s - Unknown Interrupt code from UMP %x\n", | |
1594 | __func__, data[1]); | |
1da177e4 | 1595 | break; |
2742fd88 | 1596 | |
1da177e4 LT |
1597 | } |
1598 | ||
1599 | exit: | |
2742fd88 | 1600 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
ee337c21 | 1601 | if (retval) |
2742fd88 AC |
1602 | dev_err(&urb->dev->dev, |
1603 | "%s - usb_submit_urb failed with result %d\n", | |
441b62c1 | 1604 | __func__, retval); |
1da177e4 LT |
1605 | } |
1606 | ||
2742fd88 | 1607 | static void edge_bulk_in_callback(struct urb *urb) |
1da177e4 | 1608 | { |
cdc97792 | 1609 | struct edgeport_port *edge_port = urb->context; |
67e6da70 | 1610 | struct device *dev = &edge_port->port->dev; |
1da177e4 | 1611 | unsigned char *data = urb->transfer_buffer; |
ee337c21 | 1612 | int retval = 0; |
1da177e4 | 1613 | int port_number; |
ee337c21 | 1614 | int status = urb->status; |
1da177e4 | 1615 | |
ee337c21 | 1616 | switch (status) { |
1da177e4 LT |
1617 | case 0: |
1618 | /* success */ | |
1619 | break; | |
1620 | case -ECONNRESET: | |
1621 | case -ENOENT: | |
1622 | case -ESHUTDOWN: | |
1623 | /* this urb is terminated, clean up */ | |
67e6da70 | 1624 | dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", __func__, status); |
1da177e4 LT |
1625 | return; |
1626 | default: | |
67e6da70 | 1627 | dev_err(&urb->dev->dev, "%s - nonzero read bulk status received: %d\n", __func__, status); |
1da177e4 LT |
1628 | } |
1629 | ||
ee337c21 | 1630 | if (status == -EPIPE) |
1da177e4 LT |
1631 | goto exit; |
1632 | ||
ee337c21 | 1633 | if (status) { |
2742fd88 | 1634 | dev_err(&urb->dev->dev, "%s - stopping read!\n", __func__); |
1da177e4 LT |
1635 | return; |
1636 | } | |
1637 | ||
1143832e | 1638 | port_number = edge_port->port->port_number; |
1da177e4 LT |
1639 | |
1640 | if (edge_port->lsr_event) { | |
1641 | edge_port->lsr_event = 0; | |
67e6da70 GKH |
1642 | dev_dbg(dev, "%s ===== Port %u LSR Status = %02x, Data = %02x ======\n", |
1643 | __func__, port_number, edge_port->lsr_mask, *data); | |
2742fd88 | 1644 | handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data); |
1da177e4 LT |
1645 | /* Adjust buffer length/pointer */ |
1646 | --urb->actual_length; | |
1647 | ++data; | |
1648 | } | |
1649 | ||
2e124b4a | 1650 | if (urb->actual_length) { |
59d33f2f | 1651 | usb_serial_debug_data(dev, __func__, urb->actual_length, data); |
2742fd88 | 1652 | if (edge_port->close_pending) |
67e6da70 | 1653 | dev_dbg(dev, "%s - close pending, dropping data on the floor\n", |
2742fd88 AC |
1654 | __func__); |
1655 | else | |
2e124b4a | 1656 | edge_tty_recv(edge_port->port, data, |
05c7cd39 | 1657 | urb->actual_length); |
cf9a9d66 | 1658 | edge_port->port->icount.rx += urb->actual_length; |
1da177e4 LT |
1659 | } |
1660 | ||
1661 | exit: | |
1662 | /* continue read unless stopped */ | |
1663 | spin_lock(&edge_port->ep_lock); | |
5833041f | 1664 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) |
ee337c21 | 1665 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
5833041f | 1666 | else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) |
1da177e4 | 1667 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED; |
5833041f | 1668 | |
1da177e4 | 1669 | spin_unlock(&edge_port->ep_lock); |
ee337c21 | 1670 | if (retval) |
67e6da70 | 1671 | dev_err(dev, "%s - usb_submit_urb failed with result %d\n", __func__, retval); |
1da177e4 LT |
1672 | } |
1673 | ||
2e124b4a JS |
1674 | static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data, |
1675 | int length) | |
1da177e4 | 1676 | { |
2742fd88 | 1677 | int queued; |
1da177e4 | 1678 | |
05c7cd39 | 1679 | queued = tty_insert_flip_string(&port->port, data, length); |
2742fd88 | 1680 | if (queued < length) |
05c7cd39 | 1681 | dev_err(&port->dev, "%s - dropping data, %d bytes lost\n", |
2742fd88 | 1682 | __func__, length - queued); |
2e124b4a | 1683 | tty_flip_buffer_push(&port->port); |
1da177e4 LT |
1684 | } |
1685 | ||
2742fd88 | 1686 | static void edge_bulk_out_callback(struct urb *urb) |
1da177e4 | 1687 | { |
cdc97792 | 1688 | struct usb_serial_port *port = urb->context; |
1da177e4 | 1689 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
ee337c21 | 1690 | int status = urb->status; |
4a90f09b | 1691 | struct tty_struct *tty; |
1da177e4 | 1692 | |
1da177e4 LT |
1693 | edge_port->ep_write_urb_in_use = 0; |
1694 | ||
ee337c21 | 1695 | switch (status) { |
1da177e4 LT |
1696 | case 0: |
1697 | /* success */ | |
1698 | break; | |
1699 | case -ECONNRESET: | |
1700 | case -ENOENT: | |
1701 | case -ESHUTDOWN: | |
1702 | /* this urb is terminated, clean up */ | |
67e6da70 | 1703 | dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", |
441b62c1 | 1704 | __func__, status); |
1da177e4 LT |
1705 | return; |
1706 | default: | |
22a416c4 | 1707 | dev_err_console(port, "%s - nonzero write bulk status " |
441b62c1 | 1708 | "received: %d\n", __func__, status); |
1da177e4 LT |
1709 | } |
1710 | ||
1711 | /* send any buffered data */ | |
4a90f09b | 1712 | tty = tty_port_tty_get(&port->port); |
ae3759c2 | 1713 | edge_send(port, tty); |
4a90f09b | 1714 | tty_kref_put(tty); |
1da177e4 LT |
1715 | } |
1716 | ||
a509a7e4 | 1717 | static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) |
1da177e4 LT |
1718 | { |
1719 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
1720 | struct edgeport_serial *edge_serial; | |
1721 | struct usb_device *dev; | |
1722 | struct urb *urb; | |
1723 | int port_number; | |
1724 | int status; | |
1725 | u16 open_settings; | |
1726 | u8 transaction_timeout; | |
1727 | ||
1da177e4 LT |
1728 | if (edge_port == NULL) |
1729 | return -ENODEV; | |
1730 | ||
1143832e | 1731 | port_number = port->port_number; |
1da177e4 LT |
1732 | |
1733 | dev = port->serial->dev; | |
1734 | ||
1da177e4 | 1735 | /* turn off loopback */ |
2742fd88 | 1736 | status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0); |
1da177e4 | 1737 | if (status) { |
2742fd88 AC |
1738 | dev_err(&port->dev, |
1739 | "%s - cannot send clear loopback command, %d\n", | |
441b62c1 | 1740 | __func__, status); |
1da177e4 LT |
1741 | return status; |
1742 | } | |
2742fd88 | 1743 | |
1da177e4 | 1744 | /* set up the port settings */ |
95da310e | 1745 | if (tty) |
adc8d746 | 1746 | edge_set_termios(tty, port, &tty->termios); |
1da177e4 LT |
1747 | |
1748 | /* open up the port */ | |
1749 | ||
1750 | /* milliseconds to timeout for DMA transfer */ | |
1751 | transaction_timeout = 2; | |
1752 | ||
2742fd88 AC |
1753 | edge_port->ump_read_timeout = |
1754 | max(20, ((transaction_timeout * 3) / 2)); | |
1da177e4 | 1755 | |
2742fd88 AC |
1756 | /* milliseconds to timeout for DMA transfer */ |
1757 | open_settings = (u8)(UMP_DMA_MODE_CONTINOUS | | |
1758 | UMP_PIPE_TRANS_TIMEOUT_ENA | | |
1da177e4 LT |
1759 | (transaction_timeout << 2)); |
1760 | ||
67e6da70 | 1761 | dev_dbg(&port->dev, "%s - Sending UMPC_OPEN_PORT\n", __func__); |
1da177e4 LT |
1762 | |
1763 | /* Tell TI to open and start the port */ | |
2742fd88 AC |
1764 | status = send_cmd(dev, UMPC_OPEN_PORT, |
1765 | (u8)(UMPM_UART1_PORT + port_number), open_settings, NULL, 0); | |
1da177e4 | 1766 | if (status) { |
2742fd88 AC |
1767 | dev_err(&port->dev, "%s - cannot send open command, %d\n", |
1768 | __func__, status); | |
1da177e4 LT |
1769 | return status; |
1770 | } | |
1771 | ||
1772 | /* Start the DMA? */ | |
2742fd88 AC |
1773 | status = send_cmd(dev, UMPC_START_PORT, |
1774 | (u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0); | |
1da177e4 | 1775 | if (status) { |
2742fd88 AC |
1776 | dev_err(&port->dev, "%s - cannot send start DMA command, %d\n", |
1777 | __func__, status); | |
1da177e4 LT |
1778 | return status; |
1779 | } | |
1780 | ||
1781 | /* Clear TX and RX buffers in UMP */ | |
2742fd88 | 1782 | status = purge_port(port, UMP_PORT_DIR_OUT | UMP_PORT_DIR_IN); |
1da177e4 | 1783 | if (status) { |
2742fd88 AC |
1784 | dev_err(&port->dev, |
1785 | "%s - cannot send clear buffers command, %d\n", | |
1786 | __func__, status); | |
1da177e4 LT |
1787 | return status; |
1788 | } | |
1789 | ||
1790 | /* Read Initial MSR */ | |
2742fd88 AC |
1791 | status = ti_vread_sync(dev, UMPC_READ_MSR, 0, |
1792 | (__u16)(UMPM_UART1_PORT + port_number), | |
1793 | &edge_port->shadow_msr, 1); | |
1da177e4 | 1794 | if (status) { |
2742fd88 AC |
1795 | dev_err(&port->dev, "%s - cannot send read MSR command, %d\n", |
1796 | __func__, status); | |
1da177e4 LT |
1797 | return status; |
1798 | } | |
1799 | ||
67e6da70 | 1800 | dev_dbg(&port->dev, "ShadowMSR 0x%X\n", edge_port->shadow_msr); |
2742fd88 | 1801 | |
1da177e4 LT |
1802 | /* Set Initial MCR */ |
1803 | edge_port->shadow_mcr = MCR_RTS | MCR_DTR; | |
67e6da70 | 1804 | dev_dbg(&port->dev, "ShadowMCR 0x%X\n", edge_port->shadow_mcr); |
1da177e4 LT |
1805 | |
1806 | edge_serial = edge_port->edge_serial; | |
241ca64f | 1807 | if (mutex_lock_interruptible(&edge_serial->es_lock)) |
1da177e4 LT |
1808 | return -ERESTARTSYS; |
1809 | if (edge_serial->num_ports_open == 0) { | |
2742fd88 | 1810 | /* we are the first port to open, post the interrupt urb */ |
1da177e4 LT |
1811 | urb = edge_serial->serial->port[0]->interrupt_in_urb; |
1812 | if (!urb) { | |
2742fd88 AC |
1813 | dev_err(&port->dev, |
1814 | "%s - no interrupt urb present, exiting\n", | |
1815 | __func__); | |
1da177e4 | 1816 | status = -EINVAL; |
241ca64f | 1817 | goto release_es_lock; |
1da177e4 | 1818 | } |
1da177e4 | 1819 | urb->context = edge_serial; |
2742fd88 | 1820 | status = usb_submit_urb(urb, GFP_KERNEL); |
1da177e4 | 1821 | if (status) { |
2742fd88 AC |
1822 | dev_err(&port->dev, |
1823 | "%s - usb_submit_urb failed with value %d\n", | |
1824 | __func__, status); | |
241ca64f | 1825 | goto release_es_lock; |
1da177e4 LT |
1826 | } |
1827 | } | |
1828 | ||
1829 | /* | |
1830 | * reset the data toggle on the bulk endpoints to work around bug in | |
1831 | * host controllers where things get out of sync some times | |
1832 | */ | |
2742fd88 AC |
1833 | usb_clear_halt(dev, port->write_urb->pipe); |
1834 | usb_clear_halt(dev, port->read_urb->pipe); | |
1da177e4 LT |
1835 | |
1836 | /* start up our bulk read urb */ | |
1837 | urb = port->read_urb; | |
1838 | if (!urb) { | |
2742fd88 AC |
1839 | dev_err(&port->dev, "%s - no read urb present, exiting\n", |
1840 | __func__); | |
1da177e4 LT |
1841 | status = -EINVAL; |
1842 | goto unlink_int_urb; | |
1843 | } | |
1844 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; | |
1da177e4 | 1845 | urb->context = edge_port; |
2742fd88 | 1846 | status = usb_submit_urb(urb, GFP_KERNEL); |
1da177e4 | 1847 | if (status) { |
2742fd88 AC |
1848 | dev_err(&port->dev, |
1849 | "%s - read bulk usb_submit_urb failed with value %d\n", | |
1850 | __func__, status); | |
1da177e4 LT |
1851 | goto unlink_int_urb; |
1852 | } | |
1853 | ||
1854 | ++edge_serial->num_ports_open; | |
1855 | ||
241ca64f | 1856 | goto release_es_lock; |
1da177e4 LT |
1857 | |
1858 | unlink_int_urb: | |
1859 | if (edge_port->edge_serial->num_ports_open == 0) | |
1860 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
241ca64f MK |
1861 | release_es_lock: |
1862 | mutex_unlock(&edge_serial->es_lock); | |
1da177e4 LT |
1863 | return status; |
1864 | } | |
1865 | ||
335f8514 | 1866 | static void edge_close(struct usb_serial_port *port) |
1da177e4 LT |
1867 | { |
1868 | struct edgeport_serial *edge_serial; | |
1869 | struct edgeport_port *edge_port; | |
af581059 | 1870 | struct usb_serial *serial = port->serial; |
77de2518 | 1871 | unsigned long flags; |
1da177e4 | 1872 | int port_number; |
1da177e4 | 1873 | |
1da177e4 LT |
1874 | edge_serial = usb_get_serial_data(port->serial); |
1875 | edge_port = usb_get_serial_port_data(port); | |
2742fd88 | 1876 | if (edge_serial == NULL || edge_port == NULL) |
1da177e4 | 1877 | return; |
2742fd88 AC |
1878 | |
1879 | /* The bulkreadcompletion routine will check | |
1da177e4 LT |
1880 | * this flag and dump add read data */ |
1881 | edge_port->close_pending = 1; | |
1882 | ||
1da177e4 LT |
1883 | usb_kill_urb(port->read_urb); |
1884 | usb_kill_urb(port->write_urb); | |
1885 | edge_port->ep_write_urb_in_use = 0; | |
77de2518 | 1886 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
ddca16e4 | 1887 | kfifo_reset_out(&port->write_fifo); |
77de2518 | 1888 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
1da177e4 | 1889 | |
67e6da70 | 1890 | dev_dbg(&port->dev, "%s - send umpc_close_port\n", __func__); |
1143832e | 1891 | port_number = port->port_number; |
bca87e9e JH |
1892 | send_cmd(serial->dev, UMPC_CLOSE_PORT, |
1893 | (__u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0); | |
af581059 | 1894 | |
241ca64f | 1895 | mutex_lock(&edge_serial->es_lock); |
1da177e4 LT |
1896 | --edge_port->edge_serial->num_ports_open; |
1897 | if (edge_port->edge_serial->num_ports_open <= 0) { | |
1898 | /* last port is now closed, let's shut down our interrupt urb */ | |
1899 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
1900 | edge_port->edge_serial->num_ports_open = 0; | |
1901 | } | |
241ca64f | 1902 | mutex_unlock(&edge_serial->es_lock); |
1da177e4 | 1903 | edge_port->close_pending = 0; |
1da177e4 LT |
1904 | } |
1905 | ||
95da310e AC |
1906 | static int edge_write(struct tty_struct *tty, struct usb_serial_port *port, |
1907 | const unsigned char *data, int count) | |
1da177e4 LT |
1908 | { |
1909 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
1da177e4 | 1910 | |
1da177e4 | 1911 | if (count == 0) { |
67e6da70 | 1912 | dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__); |
1da177e4 LT |
1913 | return 0; |
1914 | } | |
1915 | ||
1916 | if (edge_port == NULL) | |
1917 | return -ENODEV; | |
1918 | if (edge_port->close_pending == 1) | |
1919 | return -ENODEV; | |
1920 | ||
ddca16e4 | 1921 | count = kfifo_in_locked(&port->write_fifo, data, count, |
d733cec1 | 1922 | &edge_port->ep_lock); |
ae3759c2 | 1923 | edge_send(port, tty); |
1da177e4 LT |
1924 | |
1925 | return count; | |
1926 | } | |
1927 | ||
ae3759c2 | 1928 | static void edge_send(struct usb_serial_port *port, struct tty_struct *tty) |
1da177e4 LT |
1929 | { |
1930 | int count, result; | |
1931 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
1da177e4 LT |
1932 | unsigned long flags; |
1933 | ||
1da177e4 LT |
1934 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
1935 | ||
1936 | if (edge_port->ep_write_urb_in_use) { | |
1937 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
1938 | return; | |
1939 | } | |
1940 | ||
ddca16e4 | 1941 | count = kfifo_out(&port->write_fifo, |
1da177e4 LT |
1942 | port->write_urb->transfer_buffer, |
1943 | port->bulk_out_size); | |
1944 | ||
1945 | if (count == 0) { | |
1946 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
1947 | return; | |
1948 | } | |
1949 | ||
1950 | edge_port->ep_write_urb_in_use = 1; | |
1951 | ||
1952 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
1953 | ||
59d33f2f | 1954 | usb_serial_debug_data(&port->dev, __func__, count, port->write_urb->transfer_buffer); |
1da177e4 LT |
1955 | |
1956 | /* set up our urb */ | |
fd11961a | 1957 | port->write_urb->transfer_buffer_length = count; |
1da177e4 LT |
1958 | |
1959 | /* send the data out the bulk port */ | |
1960 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); | |
1961 | if (result) { | |
22a416c4 | 1962 | dev_err_console(port, |
2742fd88 AC |
1963 | "%s - failed submitting write urb, error %d\n", |
1964 | __func__, result); | |
1da177e4 | 1965 | edge_port->ep_write_urb_in_use = 0; |
2742fd88 AC |
1966 | /* TODO: reschedule edge_send */ |
1967 | } else | |
cf9a9d66 | 1968 | edge_port->port->icount.tx += count; |
1da177e4 LT |
1969 | |
1970 | /* wakeup any process waiting for writes to complete */ | |
1971 | /* there is now more room in the buffer for new writes */ | |
2742fd88 | 1972 | if (tty) |
1da177e4 | 1973 | tty_wakeup(tty); |
1da177e4 LT |
1974 | } |
1975 | ||
95da310e | 1976 | static int edge_write_room(struct tty_struct *tty) |
1da177e4 | 1977 | { |
95da310e | 1978 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
1979 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
1980 | int room = 0; | |
1981 | unsigned long flags; | |
1982 | ||
1da177e4 | 1983 | if (edge_port == NULL) |
2742fd88 | 1984 | return 0; |
1da177e4 | 1985 | if (edge_port->close_pending == 1) |
2742fd88 | 1986 | return 0; |
1da177e4 LT |
1987 | |
1988 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
ddca16e4 | 1989 | room = kfifo_avail(&port->write_fifo); |
1da177e4 LT |
1990 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
1991 | ||
67e6da70 | 1992 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); |
1da177e4 LT |
1993 | return room; |
1994 | } | |
1995 | ||
95da310e | 1996 | static int edge_chars_in_buffer(struct tty_struct *tty) |
1da177e4 | 1997 | { |
95da310e | 1998 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
1999 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
2000 | int chars = 0; | |
2001 | unsigned long flags; | |
1da177e4 | 2002 | if (edge_port == NULL) |
2742fd88 | 2003 | return 0; |
1da177e4 LT |
2004 | |
2005 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
ddca16e4 | 2006 | chars = kfifo_len(&port->write_fifo); |
1da177e4 LT |
2007 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
2008 | ||
67e6da70 | 2009 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); |
1da177e4 LT |
2010 | return chars; |
2011 | } | |
2012 | ||
b16634ad JH |
2013 | static bool edge_tx_empty(struct usb_serial_port *port) |
2014 | { | |
2015 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2016 | int ret; | |
2017 | ||
2018 | ret = tx_active(edge_port); | |
2019 | if (ret > 0) | |
2020 | return false; | |
2021 | ||
2022 | return true; | |
2023 | } | |
2024 | ||
95da310e | 2025 | static void edge_throttle(struct tty_struct *tty) |
1da177e4 | 2026 | { |
95da310e | 2027 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 2028 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
1da177e4 LT |
2029 | int status; |
2030 | ||
1da177e4 LT |
2031 | if (edge_port == NULL) |
2032 | return; | |
2033 | ||
1da177e4 LT |
2034 | /* if we are implementing XON/XOFF, send the stop character */ |
2035 | if (I_IXOFF(tty)) { | |
2036 | unsigned char stop_char = STOP_CHAR(tty); | |
95da310e AC |
2037 | status = edge_write(tty, port, &stop_char, 1); |
2038 | if (status <= 0) { | |
2039 | dev_err(&port->dev, "%s - failed to write stop character, %d\n", __func__, status); | |
2040 | } | |
1da177e4 LT |
2041 | } |
2042 | ||
2043 | /* if we are implementing RTS/CTS, stop reads */ | |
2044 | /* and the Edgeport will clear the RTS line */ | |
2045 | if (C_CRTSCTS(tty)) | |
2046 | stop_read(edge_port); | |
2047 | ||
2048 | } | |
2049 | ||
95da310e | 2050 | static void edge_unthrottle(struct tty_struct *tty) |
1da177e4 | 2051 | { |
95da310e | 2052 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 2053 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
1da177e4 LT |
2054 | int status; |
2055 | ||
1da177e4 LT |
2056 | if (edge_port == NULL) |
2057 | return; | |
2058 | ||
1da177e4 LT |
2059 | /* if we are implementing XON/XOFF, send the start character */ |
2060 | if (I_IXOFF(tty)) { | |
2061 | unsigned char start_char = START_CHAR(tty); | |
95da310e AC |
2062 | status = edge_write(tty, port, &start_char, 1); |
2063 | if (status <= 0) { | |
2064 | dev_err(&port->dev, "%s - failed to write start character, %d\n", __func__, status); | |
2065 | } | |
1da177e4 | 2066 | } |
1da177e4 LT |
2067 | /* if we are implementing RTS/CTS, restart reads */ |
2068 | /* are the Edgeport will assert the RTS line */ | |
2069 | if (C_CRTSCTS(tty)) { | |
2070 | status = restart_read(edge_port); | |
2071 | if (status) | |
2742fd88 AC |
2072 | dev_err(&port->dev, |
2073 | "%s - read bulk usb_submit_urb failed: %d\n", | |
2074 | __func__, status); | |
1da177e4 LT |
2075 | } |
2076 | ||
2077 | } | |
2078 | ||
2079 | static void stop_read(struct edgeport_port *edge_port) | |
2080 | { | |
2081 | unsigned long flags; | |
2082 | ||
2083 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2084 | ||
2085 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) | |
2086 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING; | |
2087 | edge_port->shadow_mcr &= ~MCR_RTS; | |
2088 | ||
2089 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2090 | } | |
2091 | ||
2092 | static int restart_read(struct edgeport_port *edge_port) | |
2093 | { | |
2094 | struct urb *urb; | |
2095 | int status = 0; | |
2096 | unsigned long flags; | |
2097 | ||
2098 | spin_lock_irqsave(&edge_port->ep_lock, flags); | |
2099 | ||
2100 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) { | |
2101 | urb = edge_port->port->read_urb; | |
efdff608 | 2102 | status = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
2103 | } |
2104 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; | |
2105 | edge_port->shadow_mcr |= MCR_RTS; | |
2106 | ||
2107 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); | |
2108 | ||
2109 | return status; | |
2110 | } | |
2111 | ||
95da310e AC |
2112 | static void change_port_settings(struct tty_struct *tty, |
2113 | struct edgeport_port *edge_port, struct ktermios *old_termios) | |
1da177e4 | 2114 | { |
67e6da70 | 2115 | struct device *dev = &edge_port->port->dev; |
1da177e4 | 2116 | struct ump_uart_config *config; |
1da177e4 LT |
2117 | int baud; |
2118 | unsigned cflag; | |
2119 | int status; | |
1143832e | 2120 | int port_number = edge_port->port->port_number; |
1da177e4 | 2121 | |
95da310e | 2122 | config = kmalloc (sizeof (*config), GFP_KERNEL); |
1da177e4 | 2123 | if (!config) { |
adc8d746 | 2124 | tty->termios = *old_termios; |
67e6da70 | 2125 | dev_err(dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
2126 | return; |
2127 | } | |
2128 | ||
adc8d746 | 2129 | cflag = tty->termios.c_cflag; |
1da177e4 LT |
2130 | |
2131 | config->wFlags = 0; | |
2132 | ||
2133 | /* These flags must be set */ | |
2134 | config->wFlags |= UMP_MASK_UART_FLAGS_RECEIVE_MS_INT; | |
2135 | config->wFlags |= UMP_MASK_UART_FLAGS_AUTO_START_ON_ERR; | |
2136 | config->bUartMode = (__u8)(edge_port->bUartMode); | |
2137 | ||
2138 | switch (cflag & CSIZE) { | |
2742fd88 AC |
2139 | case CS5: |
2140 | config->bDataBits = UMP_UART_CHAR5BITS; | |
67e6da70 | 2141 | dev_dbg(dev, "%s - data bits = 5\n", __func__); |
2742fd88 AC |
2142 | break; |
2143 | case CS6: | |
2144 | config->bDataBits = UMP_UART_CHAR6BITS; | |
67e6da70 | 2145 | dev_dbg(dev, "%s - data bits = 6\n", __func__); |
2742fd88 AC |
2146 | break; |
2147 | case CS7: | |
2148 | config->bDataBits = UMP_UART_CHAR7BITS; | |
67e6da70 | 2149 | dev_dbg(dev, "%s - data bits = 7\n", __func__); |
2742fd88 AC |
2150 | break; |
2151 | default: | |
2152 | case CS8: | |
2153 | config->bDataBits = UMP_UART_CHAR8BITS; | |
67e6da70 | 2154 | dev_dbg(dev, "%s - data bits = 8\n", __func__); |
1da177e4 LT |
2155 | break; |
2156 | } | |
2157 | ||
2158 | if (cflag & PARENB) { | |
2159 | if (cflag & PARODD) { | |
2160 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; | |
2161 | config->bParity = UMP_UART_ODDPARITY; | |
67e6da70 | 2162 | dev_dbg(dev, "%s - parity = odd\n", __func__); |
1da177e4 LT |
2163 | } else { |
2164 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; | |
2165 | config->bParity = UMP_UART_EVENPARITY; | |
67e6da70 | 2166 | dev_dbg(dev, "%s - parity = even\n", __func__); |
1da177e4 LT |
2167 | } |
2168 | } else { | |
2742fd88 | 2169 | config->bParity = UMP_UART_NOPARITY; |
67e6da70 | 2170 | dev_dbg(dev, "%s - parity = none\n", __func__); |
1da177e4 LT |
2171 | } |
2172 | ||
2173 | if (cflag & CSTOPB) { | |
2174 | config->bStopBits = UMP_UART_STOPBIT2; | |
67e6da70 | 2175 | dev_dbg(dev, "%s - stop bits = 2\n", __func__); |
1da177e4 LT |
2176 | } else { |
2177 | config->bStopBits = UMP_UART_STOPBIT1; | |
67e6da70 | 2178 | dev_dbg(dev, "%s - stop bits = 1\n", __func__); |
1da177e4 LT |
2179 | } |
2180 | ||
2181 | /* figure out the flow control settings */ | |
2182 | if (cflag & CRTSCTS) { | |
2183 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X_CTS_FLOW; | |
2184 | config->wFlags |= UMP_MASK_UART_FLAGS_RTS_FLOW; | |
67e6da70 | 2185 | dev_dbg(dev, "%s - RTS/CTS is enabled\n", __func__); |
1da177e4 | 2186 | } else { |
67e6da70 | 2187 | dev_dbg(dev, "%s - RTS/CTS is disabled\n", __func__); |
1da177e4 LT |
2188 | tty->hw_stopped = 0; |
2189 | restart_read(edge_port); | |
2190 | } | |
2191 | ||
2742fd88 AC |
2192 | /* if we are implementing XON/XOFF, set the start and stop |
2193 | character in the device */ | |
2194 | config->cXon = START_CHAR(tty); | |
2195 | config->cXoff = STOP_CHAR(tty); | |
1da177e4 | 2196 | |
2742fd88 AC |
2197 | /* if we are implementing INBOUND XON/XOFF */ |
2198 | if (I_IXOFF(tty)) { | |
2199 | config->wFlags |= UMP_MASK_UART_FLAGS_IN_X; | |
67e6da70 GKH |
2200 | dev_dbg(dev, "%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n", |
2201 | __func__, config->cXon, config->cXoff); | |
2742fd88 | 2202 | } else |
67e6da70 | 2203 | dev_dbg(dev, "%s - INBOUND XON/XOFF is disabled\n", __func__); |
1da177e4 | 2204 | |
2742fd88 AC |
2205 | /* if we are implementing OUTBOUND XON/XOFF */ |
2206 | if (I_IXON(tty)) { | |
2207 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X; | |
67e6da70 GKH |
2208 | dev_dbg(dev, "%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n", |
2209 | __func__, config->cXon, config->cXoff); | |
2742fd88 | 2210 | } else |
67e6da70 | 2211 | dev_dbg(dev, "%s - OUTBOUND XON/XOFF is disabled\n", __func__); |
1da177e4 | 2212 | |
adc8d746 | 2213 | tty->termios.c_cflag &= ~CMSPAR; |
d5f5bcd4 | 2214 | |
1da177e4 LT |
2215 | /* Round the baud rate */ |
2216 | baud = tty_get_baud_rate(tty); | |
2217 | if (!baud) { | |
2218 | /* pick a default, any default... */ | |
2219 | baud = 9600; | |
d5f5bcd4 AC |
2220 | } else |
2221 | tty_encode_baud_rate(tty, baud, baud); | |
2222 | ||
1da177e4 LT |
2223 | edge_port->baud_rate = baud; |
2224 | config->wBaudRate = (__u16)((461550L + baud/2) / baud); | |
2225 | ||
d5f5bcd4 AC |
2226 | /* FIXME: Recompute actual baud from divisor here */ |
2227 | ||
67e6da70 | 2228 | dev_dbg(dev, "%s - baud rate = %d, wBaudRate = %d\n", __func__, baud, config->wBaudRate); |
1da177e4 | 2229 | |
67e6da70 GKH |
2230 | dev_dbg(dev, "wBaudRate: %d\n", (int)(461550L / config->wBaudRate)); |
2231 | dev_dbg(dev, "wFlags: 0x%x\n", config->wFlags); | |
2232 | dev_dbg(dev, "bDataBits: %d\n", config->bDataBits); | |
2233 | dev_dbg(dev, "bParity: %d\n", config->bParity); | |
2234 | dev_dbg(dev, "bStopBits: %d\n", config->bStopBits); | |
2235 | dev_dbg(dev, "cXon: %d\n", config->cXon); | |
2236 | dev_dbg(dev, "cXoff: %d\n", config->cXoff); | |
2237 | dev_dbg(dev, "bUartMode: %d\n", config->bUartMode); | |
1da177e4 LT |
2238 | |
2239 | /* move the word values into big endian mode */ | |
2742fd88 AC |
2240 | cpu_to_be16s(&config->wFlags); |
2241 | cpu_to_be16s(&config->wBaudRate); | |
1da177e4 | 2242 | |
2742fd88 | 2243 | status = send_cmd(edge_port->port->serial->dev, UMPC_SET_CONFIG, |
1da177e4 | 2244 | (__u8)(UMPM_UART1_PORT + port_number), |
2742fd88 AC |
2245 | 0, (__u8 *)config, sizeof(*config)); |
2246 | if (status) | |
67e6da70 GKH |
2247 | dev_dbg(dev, "%s - error %d when trying to write config to device\n", |
2248 | __func__, status); | |
2742fd88 | 2249 | kfree(config); |
1da177e4 LT |
2250 | } |
2251 | ||
2e0ddd62 | 2252 | static void edge_set_termios(struct tty_struct *tty, |
95da310e | 2253 | struct usb_serial_port *port, struct ktermios *old_termios) |
1da177e4 LT |
2254 | { |
2255 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
95da310e AC |
2256 | unsigned int cflag; |
2257 | ||
adc8d746 | 2258 | cflag = tty->termios.c_cflag; |
1da177e4 | 2259 | |
67e6da70 | 2260 | dev_dbg(&port->dev, "%s - clfag %08x iflag %08x\n", __func__, |
d9a80746 | 2261 | tty->termios.c_cflag, tty->termios.c_iflag); |
67e6da70 GKH |
2262 | dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__, |
2263 | old_termios->c_cflag, old_termios->c_iflag); | |
1da177e4 LT |
2264 | |
2265 | if (edge_port == NULL) | |
2266 | return; | |
1da177e4 | 2267 | /* change the port settings to the new ones specified */ |
95da310e | 2268 | change_port_settings(tty, edge_port, old_termios); |
1da177e4 LT |
2269 | } |
2270 | ||
20b9d177 | 2271 | static int edge_tiocmset(struct tty_struct *tty, |
2742fd88 | 2272 | unsigned int set, unsigned int clear) |
1da177e4 | 2273 | { |
95da310e | 2274 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
2275 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
2276 | unsigned int mcr; | |
3d71fe0b | 2277 | unsigned long flags; |
1da177e4 | 2278 | |
3d71fe0b | 2279 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
1da177e4 LT |
2280 | mcr = edge_port->shadow_mcr; |
2281 | if (set & TIOCM_RTS) | |
2282 | mcr |= MCR_RTS; | |
2283 | if (set & TIOCM_DTR) | |
2284 | mcr |= MCR_DTR; | |
2285 | if (set & TIOCM_LOOP) | |
2286 | mcr |= MCR_LOOPBACK; | |
2287 | ||
2288 | if (clear & TIOCM_RTS) | |
2289 | mcr &= ~MCR_RTS; | |
2290 | if (clear & TIOCM_DTR) | |
2291 | mcr &= ~MCR_DTR; | |
2292 | if (clear & TIOCM_LOOP) | |
2293 | mcr &= ~MCR_LOOPBACK; | |
2294 | ||
2295 | edge_port->shadow_mcr = mcr; | |
3d71fe0b | 2296 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
1da177e4 | 2297 | |
2742fd88 | 2298 | restore_mcr(edge_port, mcr); |
1da177e4 LT |
2299 | return 0; |
2300 | } | |
2301 | ||
60b33c13 | 2302 | static int edge_tiocmget(struct tty_struct *tty) |
1da177e4 | 2303 | { |
95da310e | 2304 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
2305 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
2306 | unsigned int result = 0; | |
2307 | unsigned int msr; | |
2308 | unsigned int mcr; | |
3d71fe0b | 2309 | unsigned long flags; |
1da177e4 | 2310 | |
3d71fe0b AC |
2311 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
2312 | ||
1da177e4 LT |
2313 | msr = edge_port->shadow_msr; |
2314 | mcr = edge_port->shadow_mcr; | |
2315 | result = ((mcr & MCR_DTR) ? TIOCM_DTR: 0) /* 0x002 */ | |
2316 | | ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */ | |
2317 | | ((msr & EDGEPORT_MSR_CTS) ? TIOCM_CTS: 0) /* 0x020 */ | |
2318 | | ((msr & EDGEPORT_MSR_CD) ? TIOCM_CAR: 0) /* 0x040 */ | |
2319 | | ((msr & EDGEPORT_MSR_RI) ? TIOCM_RI: 0) /* 0x080 */ | |
2320 | | ((msr & EDGEPORT_MSR_DSR) ? TIOCM_DSR: 0); /* 0x100 */ | |
2321 | ||
2322 | ||
67e6da70 | 2323 | dev_dbg(&port->dev, "%s -- %x\n", __func__, result); |
3d71fe0b | 2324 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
1da177e4 LT |
2325 | |
2326 | return result; | |
2327 | } | |
2328 | ||
2742fd88 AC |
2329 | static int get_serial_info(struct edgeport_port *edge_port, |
2330 | struct serial_struct __user *retinfo) | |
1da177e4 LT |
2331 | { |
2332 | struct serial_struct tmp; | |
f40d7815 | 2333 | unsigned cwait; |
1da177e4 LT |
2334 | |
2335 | if (!retinfo) | |
2336 | return -EFAULT; | |
2337 | ||
f40d7815 JH |
2338 | cwait = edge_port->port->port.closing_wait; |
2339 | if (cwait != ASYNC_CLOSING_WAIT_NONE) | |
b6fd35ee | 2340 | cwait = jiffies_to_msecs(cwait) / 10; |
f40d7815 | 2341 | |
1da177e4 LT |
2342 | memset(&tmp, 0, sizeof(tmp)); |
2343 | ||
2344 | tmp.type = PORT_16550A; | |
e5b1e206 | 2345 | tmp.line = edge_port->port->minor; |
1143832e | 2346 | tmp.port = edge_port->port->port_number; |
1da177e4 LT |
2347 | tmp.irq = 0; |
2348 | tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; | |
2349 | tmp.xmit_fifo_size = edge_port->port->bulk_out_size; | |
2350 | tmp.baud_base = 9600; | |
2351 | tmp.close_delay = 5*HZ; | |
f40d7815 | 2352 | tmp.closing_wait = cwait; |
1da177e4 LT |
2353 | |
2354 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) | |
2355 | return -EFAULT; | |
2356 | return 0; | |
2357 | } | |
2358 | ||
00a0d0d6 | 2359 | static int edge_ioctl(struct tty_struct *tty, |
2742fd88 | 2360 | unsigned int cmd, unsigned long arg) |
1da177e4 | 2361 | { |
95da310e | 2362 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 2363 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
1da177e4 | 2364 | |
1143832e | 2365 | dev_dbg(&port->dev, "%s - cmd = 0x%x\n", __func__, cmd); |
1da177e4 LT |
2366 | |
2367 | switch (cmd) { | |
2742fd88 | 2368 | case TIOCGSERIAL: |
67e6da70 | 2369 | dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__); |
2742fd88 AC |
2370 | return get_serial_info(edge_port, |
2371 | (struct serial_struct __user *) arg); | |
1da177e4 | 2372 | } |
1da177e4 LT |
2373 | return -ENOIOCTLCMD; |
2374 | } | |
2375 | ||
95da310e | 2376 | static void edge_break(struct tty_struct *tty, int break_state) |
1da177e4 | 2377 | { |
95da310e | 2378 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
2379 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
2380 | int status; | |
2742fd88 | 2381 | int bv = 0; /* Off */ |
1da177e4 | 2382 | |
95da310e | 2383 | if (break_state == -1) |
2742fd88 AC |
2384 | bv = 1; /* On */ |
2385 | status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv); | |
2386 | if (status) | |
67e6da70 GKH |
2387 | dev_dbg(&port->dev, "%s - error %d sending break set/clear command.\n", |
2388 | __func__, status); | |
1da177e4 LT |
2389 | } |
2390 | ||
2742fd88 | 2391 | static int edge_startup(struct usb_serial *serial) |
1da177e4 LT |
2392 | { |
2393 | struct edgeport_serial *edge_serial; | |
1da177e4 | 2394 | int status; |
1da177e4 LT |
2395 | |
2396 | /* create our private serial structure */ | |
80b6ca48 | 2397 | edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL); |
1da177e4 | 2398 | if (edge_serial == NULL) { |
441b62c1 | 2399 | dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); |
1da177e4 LT |
2400 | return -ENOMEM; |
2401 | } | |
241ca64f | 2402 | mutex_init(&edge_serial->es_lock); |
1da177e4 LT |
2403 | edge_serial->serial = serial; |
2404 | usb_set_serial_data(serial, edge_serial); | |
2405 | ||
2742fd88 | 2406 | status = download_fw(edge_serial); |
1da177e4 | 2407 | if (status) { |
2742fd88 | 2408 | kfree(edge_serial); |
1da177e4 LT |
2409 | return status; |
2410 | } | |
2411 | ||
1da177e4 | 2412 | return 0; |
1da177e4 LT |
2413 | } |
2414 | ||
f9c99bb8 | 2415 | static void edge_disconnect(struct usb_serial *serial) |
1da177e4 | 2416 | { |
f9c99bb8 AS |
2417 | } |
2418 | ||
2419 | static void edge_release(struct usb_serial *serial) | |
2420 | { | |
00361530 JH |
2421 | kfree(usb_get_serial_data(serial)); |
2422 | } | |
2423 | ||
2424 | static int edge_port_probe(struct usb_serial_port *port) | |
2425 | { | |
f9c99bb8 | 2426 | struct edgeport_port *edge_port; |
00361530 | 2427 | int ret; |
f9c99bb8 | 2428 | |
00361530 JH |
2429 | edge_port = kzalloc(sizeof(*edge_port), GFP_KERNEL); |
2430 | if (!edge_port) | |
2431 | return -ENOMEM; | |
2432 | ||
00361530 JH |
2433 | spin_lock_init(&edge_port->ep_lock); |
2434 | edge_port->port = port; | |
2435 | edge_port->edge_serial = usb_get_serial_data(port->serial); | |
2436 | edge_port->bUartMode = default_uart_mode; | |
2437 | ||
0fce06da JH |
2438 | switch (port->port_number) { |
2439 | case 0: | |
2440 | edge_port->uart_base = UMPMEM_BASE_UART1; | |
2441 | edge_port->dma_address = UMPD_OEDB1_ADDRESS; | |
2442 | break; | |
2443 | case 1: | |
2444 | edge_port->uart_base = UMPMEM_BASE_UART2; | |
2445 | edge_port->dma_address = UMPD_OEDB2_ADDRESS; | |
2446 | break; | |
2447 | default: | |
2448 | dev_err(&port->dev, "unknown port number\n"); | |
2449 | ret = -ENODEV; | |
2450 | goto err; | |
2451 | } | |
2452 | ||
2453 | dev_dbg(&port->dev, | |
2454 | "%s - port_number = %d, uart_base = %04x, dma_address = %04x\n", | |
2455 | __func__, port->port_number, edge_port->uart_base, | |
2456 | edge_port->dma_address); | |
2457 | ||
00361530 JH |
2458 | usb_set_serial_port_data(port, edge_port); |
2459 | ||
5d8c61bc | 2460 | ret = edge_create_sysfs_attrs(port); |
0fce06da JH |
2461 | if (ret) |
2462 | goto err; | |
5d8c61bc | 2463 | |
f40d7815 | 2464 | port->port.closing_wait = msecs_to_jiffies(closing_wait * 10); |
d7be6221 | 2465 | port->port.drain_delay = 1; |
f40d7815 | 2466 | |
00361530 | 2467 | return 0; |
0fce06da JH |
2468 | err: |
2469 | kfree(edge_port); | |
2470 | ||
2471 | return ret; | |
1da177e4 LT |
2472 | } |
2473 | ||
00361530 JH |
2474 | static int edge_port_remove(struct usb_serial_port *port) |
2475 | { | |
2476 | struct edgeport_port *edge_port; | |
2477 | ||
2478 | edge_port = usb_get_serial_port_data(port); | |
00361530 | 2479 | edge_remove_sysfs_attrs(port); |
00361530 JH |
2480 | kfree(edge_port); |
2481 | ||
2482 | return 0; | |
2483 | } | |
1da177e4 | 2484 | |
fc4cbd75 MP |
2485 | /* Sysfs Attributes */ |
2486 | ||
154547c4 | 2487 | static ssize_t uart_mode_show(struct device *dev, |
fc4cbd75 MP |
2488 | struct device_attribute *attr, char *buf) |
2489 | { | |
2490 | struct usb_serial_port *port = to_usb_serial_port(dev); | |
2491 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2492 | ||
2493 | return sprintf(buf, "%d\n", edge_port->bUartMode); | |
2494 | } | |
2495 | ||
154547c4 | 2496 | static ssize_t uart_mode_store(struct device *dev, |
fc4cbd75 MP |
2497 | struct device_attribute *attr, const char *valbuf, size_t count) |
2498 | { | |
2499 | struct usb_serial_port *port = to_usb_serial_port(dev); | |
2500 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); | |
2501 | unsigned int v = simple_strtoul(valbuf, NULL, 0); | |
2502 | ||
67e6da70 | 2503 | dev_dbg(dev, "%s: setting uart_mode = %d\n", __func__, v); |
fc4cbd75 MP |
2504 | |
2505 | if (v < 256) | |
2506 | edge_port->bUartMode = v; | |
2507 | else | |
441b62c1 | 2508 | dev_err(dev, "%s - uart_mode %d is invalid\n", __func__, v); |
fc4cbd75 MP |
2509 | |
2510 | return count; | |
2511 | } | |
154547c4 | 2512 | static DEVICE_ATTR_RW(uart_mode); |
fc4cbd75 MP |
2513 | |
2514 | static int edge_create_sysfs_attrs(struct usb_serial_port *port) | |
2515 | { | |
2516 | return device_create_file(&port->dev, &dev_attr_uart_mode); | |
2517 | } | |
2518 | ||
2519 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port) | |
2520 | { | |
2521 | device_remove_file(&port->dev, &dev_attr_uart_mode); | |
2522 | return 0; | |
2523 | } | |
2524 | ||
2525 | ||
ea65370d | 2526 | static struct usb_serial_driver edgeport_1port_device = { |
18fcac35 | 2527 | .driver = { |
269bda1c GKH |
2528 | .owner = THIS_MODULE, |
2529 | .name = "edgeport_ti_1", | |
18fcac35 | 2530 | }, |
269bda1c | 2531 | .description = "Edgeport TI 1 port adapter", |
1da177e4 | 2532 | .id_table = edgeport_1port_id_table, |
1da177e4 LT |
2533 | .num_ports = 1, |
2534 | .open = edge_open, | |
2535 | .close = edge_close, | |
2536 | .throttle = edge_throttle, | |
2537 | .unthrottle = edge_unthrottle, | |
2538 | .attach = edge_startup, | |
f9c99bb8 AS |
2539 | .disconnect = edge_disconnect, |
2540 | .release = edge_release, | |
00361530 JH |
2541 | .port_probe = edge_port_probe, |
2542 | .port_remove = edge_port_remove, | |
1da177e4 LT |
2543 | .ioctl = edge_ioctl, |
2544 | .set_termios = edge_set_termios, | |
2545 | .tiocmget = edge_tiocmget, | |
2546 | .tiocmset = edge_tiocmset, | |
48ee5801 | 2547 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
cf9a9d66 | 2548 | .get_icount = usb_serial_generic_get_icount, |
1da177e4 LT |
2549 | .write = edge_write, |
2550 | .write_room = edge_write_room, | |
2551 | .chars_in_buffer = edge_chars_in_buffer, | |
b16634ad | 2552 | .tx_empty = edge_tx_empty, |
1da177e4 LT |
2553 | .break_ctl = edge_break, |
2554 | .read_int_callback = edge_interrupt_callback, | |
2555 | .read_bulk_callback = edge_bulk_in_callback, | |
2556 | .write_bulk_callback = edge_bulk_out_callback, | |
2557 | }; | |
2558 | ||
ea65370d | 2559 | static struct usb_serial_driver edgeport_2port_device = { |
18fcac35 | 2560 | .driver = { |
269bda1c GKH |
2561 | .owner = THIS_MODULE, |
2562 | .name = "edgeport_ti_2", | |
18fcac35 | 2563 | }, |
269bda1c | 2564 | .description = "Edgeport TI 2 port adapter", |
1da177e4 | 2565 | .id_table = edgeport_2port_id_table, |
1da177e4 LT |
2566 | .num_ports = 2, |
2567 | .open = edge_open, | |
2568 | .close = edge_close, | |
2569 | .throttle = edge_throttle, | |
2570 | .unthrottle = edge_unthrottle, | |
2571 | .attach = edge_startup, | |
f9c99bb8 AS |
2572 | .disconnect = edge_disconnect, |
2573 | .release = edge_release, | |
00361530 JH |
2574 | .port_probe = edge_port_probe, |
2575 | .port_remove = edge_port_remove, | |
1da177e4 LT |
2576 | .ioctl = edge_ioctl, |
2577 | .set_termios = edge_set_termios, | |
2578 | .tiocmget = edge_tiocmget, | |
2579 | .tiocmset = edge_tiocmset, | |
48ee5801 | 2580 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
cf9a9d66 | 2581 | .get_icount = usb_serial_generic_get_icount, |
1da177e4 LT |
2582 | .write = edge_write, |
2583 | .write_room = edge_write_room, | |
2584 | .chars_in_buffer = edge_chars_in_buffer, | |
b16634ad | 2585 | .tx_empty = edge_tx_empty, |
1da177e4 LT |
2586 | .break_ctl = edge_break, |
2587 | .read_int_callback = edge_interrupt_callback, | |
2588 | .read_bulk_callback = edge_bulk_in_callback, | |
2589 | .write_bulk_callback = edge_bulk_out_callback, | |
2590 | }; | |
2591 | ||
7dbe2460 AS |
2592 | static struct usb_serial_driver * const serial_drivers[] = { |
2593 | &edgeport_1port_device, &edgeport_2port_device, NULL | |
2594 | }; | |
2595 | ||
68e24113 | 2596 | module_usb_serial_driver(serial_drivers, id_table_combined); |
1da177e4 | 2597 | |
1da177e4 LT |
2598 | MODULE_AUTHOR(DRIVER_AUTHOR); |
2599 | MODULE_DESCRIPTION(DRIVER_DESC); | |
2600 | MODULE_LICENSE("GPL"); | |
d12b219a | 2601 | MODULE_FIRMWARE("edgeport/down3.bin"); |
1da177e4 | 2602 | |
1da177e4 LT |
2603 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
2604 | MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs"); | |
2605 | ||
2606 | module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR); | |
2742fd88 AC |
2607 | MODULE_PARM_DESC(ignore_cpu_rev, |
2608 | "Ignore the cpu revision when connecting to a device"); | |
1da177e4 | 2609 | |
fc4cbd75 MP |
2610 | module_param(default_uart_mode, int, S_IRUGO | S_IWUSR); |
2611 | MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ..."); |