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0f0b270f RM |
1 | /* |
2 | * cxd2099.c: Driver for the CXD2099AR Common Interface Controller | |
3 | * | |
6eb94193 | 4 | * Copyright (C) 2010-2011 Digital Devices GmbH |
0f0b270f RM |
5 | * |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * version 2 only, as published by the Free Software Foundation. | |
10 | * | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
21 | * 02110-1301, USA | |
22 | * Or, point your browser to http://www.gnu.org/copyleft/gpl.html | |
23 | */ | |
24 | ||
0f0b270f RM |
25 | #include <linux/slab.h> |
26 | #include <linux/kernel.h> | |
27 | #include <linux/module.h> | |
28 | #include <linux/moduleparam.h> | |
0f0b270f RM |
29 | #include <linux/i2c.h> |
30 | #include <linux/wait.h> | |
31 | #include <linux/delay.h> | |
32 | #include <linux/mutex.h> | |
33 | #include <linux/io.h> | |
34 | ||
35 | #include "cxd2099.h" | |
36 | ||
37 | #define MAX_BUFFER_SIZE 248 | |
38 | ||
39 | struct cxd { | |
40 | struct dvb_ca_en50221 en; | |
41 | ||
42 | struct i2c_adapter *i2c; | |
6eb94193 RM |
43 | struct cxd2099_cfg cfg; |
44 | ||
0f0b270f RM |
45 | u8 regs[0x23]; |
46 | u8 lastaddress; | |
47 | u8 clk_reg_f; | |
48 | u8 clk_reg_b; | |
49 | int mode; | |
0f0b270f RM |
50 | int ready; |
51 | int dr; | |
52 | int slot_stat; | |
53 | ||
54 | u8 amem[1024]; | |
55 | int amem_read; | |
56 | ||
57 | int cammode; | |
58 | struct mutex lock; | |
59 | }; | |
60 | ||
61 | static int i2c_write_reg(struct i2c_adapter *adapter, u8 adr, | |
62 | u8 reg, u8 data) | |
63 | { | |
64 | u8 m[2] = {reg, data}; | |
65 | struct i2c_msg msg = {.addr = adr, .flags = 0, .buf = m, .len = 2}; | |
66 | ||
67 | if (i2c_transfer(adapter, &msg, 1) != 1) { | |
011b2aad YT |
68 | dev_err(&adapter->dev, |
69 | "Failed to write to I2C register %02x@%02x!\n", | |
70 | reg, adr); | |
0f0b270f RM |
71 | return -1; |
72 | } | |
73 | return 0; | |
74 | } | |
75 | ||
76 | static int i2c_write(struct i2c_adapter *adapter, u8 adr, | |
77 | u8 *data, u8 len) | |
78 | { | |
79 | struct i2c_msg msg = {.addr = adr, .flags = 0, .buf = data, .len = len}; | |
80 | ||
81 | if (i2c_transfer(adapter, &msg, 1) != 1) { | |
011b2aad | 82 | dev_err(&adapter->dev, "Failed to write to I2C!\n"); |
0f0b270f RM |
83 | return -1; |
84 | } | |
85 | return 0; | |
86 | } | |
87 | ||
88 | static int i2c_read_reg(struct i2c_adapter *adapter, u8 adr, | |
89 | u8 reg, u8 *val) | |
90 | { | |
91 | struct i2c_msg msgs[2] = {{.addr = adr, .flags = 0, | |
6eb94193 | 92 | .buf = ®, .len = 1}, |
0f0b270f | 93 | {.addr = adr, .flags = I2C_M_RD, |
9daf9bcc | 94 | .buf = val, .len = 1} }; |
0f0b270f RM |
95 | |
96 | if (i2c_transfer(adapter, msgs, 2) != 2) { | |
011b2aad | 97 | dev_err(&adapter->dev, "error in i2c_read_reg\n"); |
0f0b270f RM |
98 | return -1; |
99 | } | |
100 | return 0; | |
101 | } | |
102 | ||
103 | static int i2c_read(struct i2c_adapter *adapter, u8 adr, | |
104 | u8 reg, u8 *data, u8 n) | |
105 | { | |
106 | struct i2c_msg msgs[2] = {{.addr = adr, .flags = 0, | |
6eb94193 RM |
107 | .buf = ®, .len = 1}, |
108 | {.addr = adr, .flags = I2C_M_RD, | |
9daf9bcc | 109 | .buf = data, .len = n} }; |
0f0b270f RM |
110 | |
111 | if (i2c_transfer(adapter, msgs, 2) != 2) { | |
011b2aad | 112 | dev_err(&adapter->dev, "error in i2c_read\n"); |
0f0b270f RM |
113 | return -1; |
114 | } | |
115 | return 0; | |
116 | } | |
117 | ||
118 | static int read_block(struct cxd *ci, u8 adr, u8 *data, u8 n) | |
119 | { | |
120 | int status; | |
121 | ||
6eb94193 | 122 | status = i2c_write_reg(ci->i2c, ci->cfg.adr, 0, adr); |
0f0b270f RM |
123 | if (!status) { |
124 | ci->lastaddress = adr; | |
6eb94193 | 125 | status = i2c_read(ci->i2c, ci->cfg.adr, 1, data, n); |
0f0b270f RM |
126 | } |
127 | return status; | |
128 | } | |
129 | ||
130 | static int read_reg(struct cxd *ci, u8 reg, u8 *val) | |
131 | { | |
132 | return read_block(ci, reg, val, 1); | |
133 | } | |
134 | ||
135 | ||
136 | static int read_pccard(struct cxd *ci, u16 address, u8 *data, u8 n) | |
137 | { | |
138 | int status; | |
6eb94193 | 139 | u8 addr[3] = {2, address & 0xff, address >> 8}; |
0f0b270f | 140 | |
9daf9bcc | 141 | status = i2c_write(ci->i2c, ci->cfg.adr, addr, 3); |
0f0b270f | 142 | if (!status) |
6eb94193 | 143 | status = i2c_read(ci->i2c, ci->cfg.adr, 3, data, n); |
0f0b270f RM |
144 | return status; |
145 | } | |
146 | ||
147 | static int write_pccard(struct cxd *ci, u16 address, u8 *data, u8 n) | |
148 | { | |
149 | int status; | |
6eb94193 | 150 | u8 addr[3] = {2, address & 0xff, address >> 8}; |
0f0b270f | 151 | |
9daf9bcc | 152 | status = i2c_write(ci->i2c, ci->cfg.adr, addr, 3); |
0f0b270f RM |
153 | if (!status) { |
154 | u8 buf[256] = {3}; | |
155 | memcpy(buf+1, data, n); | |
6eb94193 | 156 | status = i2c_write(ci->i2c, ci->cfg.adr, buf, n+1); |
0f0b270f RM |
157 | } |
158 | return status; | |
159 | } | |
160 | ||
161 | static int read_io(struct cxd *ci, u16 address, u8 *val) | |
162 | { | |
163 | int status; | |
6eb94193 | 164 | u8 addr[3] = {2, address & 0xff, address >> 8}; |
0f0b270f | 165 | |
6eb94193 | 166 | status = i2c_write(ci->i2c, ci->cfg.adr, addr, 3); |
0f0b270f | 167 | if (!status) |
6eb94193 | 168 | status = i2c_read(ci->i2c, ci->cfg.adr, 3, val, 1); |
0f0b270f RM |
169 | return status; |
170 | } | |
171 | ||
172 | static int write_io(struct cxd *ci, u16 address, u8 val) | |
173 | { | |
174 | int status; | |
6eb94193 RM |
175 | u8 addr[3] = {2, address & 0xff, address >> 8}; |
176 | u8 buf[2] = {3, val}; | |
0f0b270f | 177 | |
6eb94193 | 178 | status = i2c_write(ci->i2c, ci->cfg.adr, addr, 3); |
0f0b270f | 179 | if (!status) |
6eb94193 | 180 | status = i2c_write(ci->i2c, ci->cfg.adr, buf, 2); |
0f0b270f RM |
181 | return status; |
182 | } | |
183 | ||
6eb94193 RM |
184 | #if 0 |
185 | static int read_io_data(struct cxd *ci, u8 *data, u8 n) | |
186 | { | |
187 | int status; | |
188 | u8 addr[3] = { 2, 0, 0 }; | |
189 | ||
190 | status = i2c_write(ci->i2c, ci->cfg.adr, addr, 3); | |
191 | if (!status) | |
192 | status = i2c_read(ci->i2c, ci->cfg.adr, 3, data, n); | |
193 | return 0; | |
194 | } | |
195 | ||
196 | static int write_io_data(struct cxd *ci, u8 *data, u8 n) | |
197 | { | |
198 | int status; | |
199 | u8 addr[3] = {2, 0, 0}; | |
200 | ||
201 | status = i2c_write(ci->i2c, ci->cfg.adr, addr, 3); | |
202 | if (!status) { | |
203 | u8 buf[256] = {3}; | |
204 | memcpy(buf+1, data, n); | |
205 | status = i2c_write(ci->i2c, ci->cfg.adr, buf, n + 1); | |
206 | } | |
207 | return 0; | |
208 | } | |
209 | #endif | |
0f0b270f RM |
210 | |
211 | static int write_regm(struct cxd *ci, u8 reg, u8 val, u8 mask) | |
212 | { | |
213 | int status; | |
214 | ||
9daf9bcc | 215 | status = i2c_write_reg(ci->i2c, ci->cfg.adr, 0, reg); |
0f0b270f | 216 | if (!status && reg >= 6 && reg <= 8 && mask != 0xff) |
6eb94193 RM |
217 | status = i2c_read_reg(ci->i2c, ci->cfg.adr, 1, &ci->regs[reg]); |
218 | ci->regs[reg] = (ci->regs[reg] & (~mask)) | val; | |
0f0b270f RM |
219 | if (!status) { |
220 | ci->lastaddress = reg; | |
6eb94193 | 221 | status = i2c_write_reg(ci->i2c, ci->cfg.adr, 1, ci->regs[reg]); |
0f0b270f RM |
222 | } |
223 | if (reg == 0x20) | |
224 | ci->regs[reg] &= 0x7f; | |
225 | return status; | |
226 | } | |
227 | ||
228 | static int write_reg(struct cxd *ci, u8 reg, u8 val) | |
229 | { | |
230 | return write_regm(ci, reg, val, 0xff); | |
231 | } | |
232 | ||
233 | #ifdef BUFFER_MODE | |
234 | static int write_block(struct cxd *ci, u8 adr, u8 *data, int n) | |
235 | { | |
236 | int status; | |
237 | u8 buf[256] = {1}; | |
238 | ||
6eb94193 | 239 | status = i2c_write_reg(ci->i2c, ci->cfg.adr, 0, adr); |
0f0b270f RM |
240 | if (!status) { |
241 | ci->lastaddress = adr; | |
6eb94193 RM |
242 | memcpy(buf + 1, data, n); |
243 | status = i2c_write(ci->i2c, ci->cfg.adr, buf, n + 1); | |
0f0b270f RM |
244 | } |
245 | return status; | |
246 | } | |
247 | #endif | |
248 | ||
249 | static void set_mode(struct cxd *ci, int mode) | |
250 | { | |
251 | if (mode == ci->mode) | |
252 | return; | |
253 | ||
254 | switch (mode) { | |
255 | case 0x00: /* IO mem */ | |
256 | write_regm(ci, 0x06, 0x00, 0x07); | |
257 | break; | |
258 | case 0x01: /* ATT mem */ | |
259 | write_regm(ci, 0x06, 0x02, 0x07); | |
260 | break; | |
261 | default: | |
262 | break; | |
263 | } | |
264 | ci->mode = mode; | |
265 | } | |
266 | ||
267 | static void cam_mode(struct cxd *ci, int mode) | |
268 | { | |
269 | if (mode == ci->cammode) | |
270 | return; | |
271 | ||
272 | switch (mode) { | |
273 | case 0x00: | |
274 | write_regm(ci, 0x20, 0x80, 0x80); | |
275 | break; | |
276 | case 0x01: | |
6eb94193 RM |
277 | #ifdef BUFFER_MODE |
278 | if (!ci->en.read_data) | |
279 | return; | |
011b2aad | 280 | dev_info(&ci->i2c->dev, "enable cam buffer mode\n"); |
0f0b270f RM |
281 | /* write_reg(ci, 0x0d, 0x00); */ |
282 | /* write_reg(ci, 0x0e, 0x01); */ | |
283 | write_regm(ci, 0x08, 0x40, 0x40); | |
284 | /* read_reg(ci, 0x12, &dummy); */ | |
285 | write_regm(ci, 0x08, 0x80, 0x80); | |
6eb94193 | 286 | #endif |
0f0b270f RM |
287 | break; |
288 | default: | |
289 | break; | |
290 | } | |
291 | ci->cammode = mode; | |
292 | } | |
293 | ||
294 | ||
295 | ||
0f0b270f RM |
296 | static int init(struct cxd *ci) |
297 | { | |
298 | int status; | |
299 | ||
300 | mutex_lock(&ci->lock); | |
301 | ci->mode = -1; | |
302 | do { | |
af070bd6 MCC |
303 | status = write_reg(ci, 0x00, 0x00); |
304 | if (status < 0) | |
305 | break; | |
306 | status = write_reg(ci, 0x01, 0x00); | |
307 | if (status < 0) | |
308 | break; | |
309 | status = write_reg(ci, 0x02, 0x10); | |
310 | if (status < 0) | |
311 | break; | |
312 | status = write_reg(ci, 0x03, 0x00); | |
313 | if (status < 0) | |
314 | break; | |
315 | status = write_reg(ci, 0x05, 0xFF); | |
316 | if (status < 0) | |
317 | break; | |
318 | status = write_reg(ci, 0x06, 0x1F); | |
319 | if (status < 0) | |
320 | break; | |
321 | status = write_reg(ci, 0x07, 0x1F); | |
322 | if (status < 0) | |
323 | break; | |
324 | status = write_reg(ci, 0x08, 0x28); | |
325 | if (status < 0) | |
326 | break; | |
327 | status = write_reg(ci, 0x14, 0x20); | |
328 | if (status < 0) | |
329 | break; | |
330 | ||
331 | #if 0 | |
332 | status = write_reg(ci, 0x09, 0x4D); /* Input Mode C, BYPass Serial, TIVAL = low, MSB */ | |
333 | if (status < 0) | |
334 | break; | |
335 | #endif | |
336 | status = write_reg(ci, 0x0A, 0xA7); /* TOSTRT = 8, Mode B (gated clock), falling Edge, Serial, POL=HIGH, MSB */ | |
337 | if (status < 0) | |
338 | break; | |
339 | ||
340 | status = write_reg(ci, 0x0B, 0x33); | |
341 | if (status < 0) | |
342 | break; | |
343 | status = write_reg(ci, 0x0C, 0x33); | |
344 | if (status < 0) | |
345 | break; | |
346 | ||
347 | status = write_regm(ci, 0x14, 0x00, 0x0F); | |
348 | if (status < 0) | |
349 | break; | |
350 | status = write_reg(ci, 0x15, ci->clk_reg_b); | |
351 | if (status < 0) | |
352 | break; | |
353 | status = write_regm(ci, 0x16, 0x00, 0x0F); | |
354 | if (status < 0) | |
355 | break; | |
356 | status = write_reg(ci, 0x17, ci->clk_reg_f); | |
357 | if (status < 0) | |
358 | break; | |
0f0b270f | 359 | |
6eb94193 RM |
360 | if (ci->cfg.clock_mode) { |
361 | if (ci->cfg.polarity) { | |
af070bd6 MCC |
362 | status = write_reg(ci, 0x09, 0x6f); |
363 | if (status < 0) | |
364 | break; | |
6eb94193 | 365 | } else { |
af070bd6 MCC |
366 | status = write_reg(ci, 0x09, 0x6d); |
367 | if (status < 0) | |
368 | break; | |
6eb94193 | 369 | } |
af070bd6 MCC |
370 | status = write_reg(ci, 0x20, 0x68); |
371 | if (status < 0) | |
372 | break; | |
373 | status = write_reg(ci, 0x21, 0x00); | |
374 | if (status < 0) | |
375 | break; | |
376 | status = write_reg(ci, 0x22, 0x02); | |
377 | if (status < 0) | |
378 | break; | |
6eb94193 RM |
379 | } else { |
380 | if (ci->cfg.polarity) { | |
af070bd6 MCC |
381 | status = write_reg(ci, 0x09, 0x4f); |
382 | if (status < 0) | |
383 | break; | |
6eb94193 | 384 | } else { |
af070bd6 MCC |
385 | status = write_reg(ci, 0x09, 0x4d); |
386 | if (status < 0) | |
387 | break; | |
6eb94193 | 388 | } |
0f0b270f | 389 | |
af070bd6 MCC |
390 | status = write_reg(ci, 0x20, 0x28); |
391 | if (status < 0) | |
392 | break; | |
393 | status = write_reg(ci, 0x21, 0x00); | |
394 | if (status < 0) | |
395 | break; | |
396 | status = write_reg(ci, 0x22, 0x07); | |
397 | if (status < 0) | |
398 | break; | |
6eb94193 | 399 | } |
0f0b270f | 400 | |
af070bd6 MCC |
401 | status = write_regm(ci, 0x20, 0x80, 0x80); |
402 | if (status < 0) | |
403 | break; | |
404 | status = write_regm(ci, 0x03, 0x02, 0x02); | |
405 | if (status < 0) | |
406 | break; | |
407 | status = write_reg(ci, 0x01, 0x04); | |
408 | if (status < 0) | |
409 | break; | |
410 | status = write_reg(ci, 0x00, 0x31); | |
411 | if (status < 0) | |
412 | break; | |
0f0b270f | 413 | |
6eb94193 | 414 | /* Put TS in bypass */ |
af070bd6 MCC |
415 | status = write_regm(ci, 0x09, 0x08, 0x08); |
416 | if (status < 0) | |
417 | break; | |
0f0b270f | 418 | ci->cammode = -1; |
0f0b270f | 419 | cam_mode(ci, 0); |
0f0b270f RM |
420 | } while (0); |
421 | mutex_unlock(&ci->lock); | |
422 | ||
423 | return 0; | |
424 | } | |
425 | ||
0f0b270f RM |
426 | static int read_attribute_mem(struct dvb_ca_en50221 *ca, |
427 | int slot, int address) | |
428 | { | |
429 | struct cxd *ci = ca->data; | |
6eb94193 RM |
430 | #if 0 |
431 | if (ci->amem_read) { | |
9daf9bcc | 432 | if (address <= 0 || address > 1024) |
6eb94193 RM |
433 | return -EIO; |
434 | return ci->amem[address]; | |
435 | } | |
436 | ||
437 | mutex_lock(&ci->lock); | |
438 | write_regm(ci, 0x06, 0x00, 0x05); | |
439 | read_pccard(ci, 0, &ci->amem[0], 128); | |
440 | read_pccard(ci, 128, &ci->amem[0], 128); | |
441 | read_pccard(ci, 256, &ci->amem[0], 128); | |
442 | read_pccard(ci, 384, &ci->amem[0], 128); | |
443 | write_regm(ci, 0x06, 0x05, 0x05); | |
444 | mutex_unlock(&ci->lock); | |
445 | return ci->amem[address]; | |
446 | #else | |
0f0b270f RM |
447 | u8 val; |
448 | mutex_lock(&ci->lock); | |
449 | set_mode(ci, 1); | |
450 | read_pccard(ci, address, &val, 1); | |
451 | mutex_unlock(&ci->lock); | |
9daf9bcc | 452 | /* printk(KERN_INFO "%02x:%02x\n", address,val); */ |
0f0b270f | 453 | return val; |
6eb94193 | 454 | #endif |
0f0b270f RM |
455 | } |
456 | ||
0f0b270f RM |
457 | static int write_attribute_mem(struct dvb_ca_en50221 *ca, int slot, |
458 | int address, u8 value) | |
459 | { | |
460 | struct cxd *ci = ca->data; | |
461 | ||
462 | mutex_lock(&ci->lock); | |
463 | set_mode(ci, 1); | |
464 | write_pccard(ci, address, &value, 1); | |
465 | mutex_unlock(&ci->lock); | |
466 | return 0; | |
467 | } | |
468 | ||
469 | static int read_cam_control(struct dvb_ca_en50221 *ca, | |
470 | int slot, u8 address) | |
471 | { | |
472 | struct cxd *ci = ca->data; | |
473 | u8 val; | |
474 | ||
475 | mutex_lock(&ci->lock); | |
476 | set_mode(ci, 0); | |
477 | read_io(ci, address, &val); | |
478 | mutex_unlock(&ci->lock); | |
479 | return val; | |
480 | } | |
481 | ||
482 | static int write_cam_control(struct dvb_ca_en50221 *ca, int slot, | |
483 | u8 address, u8 value) | |
484 | { | |
485 | struct cxd *ci = ca->data; | |
486 | ||
487 | mutex_lock(&ci->lock); | |
488 | set_mode(ci, 0); | |
489 | write_io(ci, address, value); | |
490 | mutex_unlock(&ci->lock); | |
491 | return 0; | |
492 | } | |
493 | ||
494 | static int slot_reset(struct dvb_ca_en50221 *ca, int slot) | |
495 | { | |
496 | struct cxd *ci = ca->data; | |
497 | ||
498 | mutex_lock(&ci->lock); | |
6eb94193 RM |
499 | #if 0 |
500 | write_reg(ci, 0x00, 0x21); | |
501 | write_reg(ci, 0x06, 0x1F); | |
502 | write_reg(ci, 0x00, 0x31); | |
503 | #else | |
504 | #if 0 | |
505 | write_reg(ci, 0x06, 0x1F); | |
506 | write_reg(ci, 0x06, 0x2F); | |
507 | #else | |
0f0b270f RM |
508 | cam_mode(ci, 0); |
509 | write_reg(ci, 0x00, 0x21); | |
510 | write_reg(ci, 0x06, 0x1F); | |
511 | write_reg(ci, 0x00, 0x31); | |
512 | write_regm(ci, 0x20, 0x80, 0x80); | |
513 | write_reg(ci, 0x03, 0x02); | |
514 | ci->ready = 0; | |
6eb94193 RM |
515 | #endif |
516 | #endif | |
0f0b270f RM |
517 | ci->mode = -1; |
518 | { | |
519 | int i; | |
6eb94193 RM |
520 | #if 0 |
521 | u8 val; | |
522 | #endif | |
0f0b270f RM |
523 | for (i = 0; i < 100; i++) { |
524 | msleep(10); | |
6eb94193 | 525 | #if 0 |
9daf9bcc | 526 | read_reg(ci, 0x06, &val); |
011b2aad | 527 | dev_info(&ci->i2c->dev, "%d:%02x\n", i, val); |
6eb94193 RM |
528 | if (!(val&0x10)) |
529 | break; | |
530 | #else | |
0f0b270f RM |
531 | if (ci->ready) |
532 | break; | |
6eb94193 | 533 | #endif |
0f0b270f RM |
534 | } |
535 | } | |
536 | mutex_unlock(&ci->lock); | |
537 | /* msleep(500); */ | |
538 | return 0; | |
539 | } | |
540 | ||
541 | static int slot_shutdown(struct dvb_ca_en50221 *ca, int slot) | |
542 | { | |
543 | struct cxd *ci = ca->data; | |
544 | ||
011b2aad | 545 | dev_info(&ci->i2c->dev, "slot_shutdown\n"); |
0f0b270f | 546 | mutex_lock(&ci->lock); |
6eb94193 RM |
547 | write_regm(ci, 0x09, 0x08, 0x08); |
548 | write_regm(ci, 0x20, 0x80, 0x80); /* Reset CAM Mode */ | |
549 | write_regm(ci, 0x06, 0x07, 0x07); /* Clear IO Mode */ | |
0f0b270f RM |
550 | ci->mode = -1; |
551 | mutex_unlock(&ci->lock); | |
6eb94193 | 552 | return 0; |
0f0b270f RM |
553 | } |
554 | ||
555 | static int slot_ts_enable(struct dvb_ca_en50221 *ca, int slot) | |
556 | { | |
557 | struct cxd *ci = ca->data; | |
558 | ||
559 | mutex_lock(&ci->lock); | |
560 | write_regm(ci, 0x09, 0x00, 0x08); | |
561 | set_mode(ci, 0); | |
562 | #ifdef BUFFER_MODE | |
563 | cam_mode(ci, 1); | |
564 | #endif | |
565 | mutex_unlock(&ci->lock); | |
566 | return 0; | |
567 | } | |
568 | ||
569 | ||
570 | static int campoll(struct cxd *ci) | |
571 | { | |
572 | u8 istat; | |
573 | ||
574 | read_reg(ci, 0x04, &istat); | |
575 | if (!istat) | |
576 | return 0; | |
577 | write_reg(ci, 0x05, istat); | |
578 | ||
579 | if (istat&0x40) { | |
580 | ci->dr = 1; | |
011b2aad | 581 | dev_info(&ci->i2c->dev, "DR\n"); |
0f0b270f RM |
582 | } |
583 | if (istat&0x20) | |
011b2aad | 584 | dev_info(&ci->i2c->dev, "WC\n"); |
0f0b270f RM |
585 | |
586 | if (istat&2) { | |
587 | u8 slotstat; | |
588 | ||
589 | read_reg(ci, 0x01, &slotstat); | |
590 | if (!(2&slotstat)) { | |
591 | if (!ci->slot_stat) { | |
592 | ci->slot_stat |= DVB_CA_EN50221_POLL_CAM_PRESENT; | |
593 | write_regm(ci, 0x03, 0x08, 0x08); | |
594 | } | |
595 | ||
596 | } else { | |
597 | if (ci->slot_stat) { | |
598 | ci->slot_stat = 0; | |
599 | write_regm(ci, 0x03, 0x00, 0x08); | |
011b2aad | 600 | dev_info(&ci->i2c->dev, "NO CAM\n"); |
0f0b270f RM |
601 | ci->ready = 0; |
602 | } | |
603 | } | |
604 | if (istat&8 && ci->slot_stat == DVB_CA_EN50221_POLL_CAM_PRESENT) { | |
605 | ci->ready = 1; | |
606 | ci->slot_stat |= DVB_CA_EN50221_POLL_CAM_READY; | |
0f0b270f RM |
607 | } |
608 | } | |
609 | return 0; | |
610 | } | |
611 | ||
612 | ||
613 | static int poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open) | |
614 | { | |
615 | struct cxd *ci = ca->data; | |
616 | u8 slotstat; | |
617 | ||
618 | mutex_lock(&ci->lock); | |
619 | campoll(ci); | |
620 | read_reg(ci, 0x01, &slotstat); | |
621 | mutex_unlock(&ci->lock); | |
622 | ||
623 | return ci->slot_stat; | |
624 | } | |
625 | ||
626 | #ifdef BUFFER_MODE | |
627 | static int read_data(struct dvb_ca_en50221 *ca, int slot, u8 *ebuf, int ecount) | |
628 | { | |
629 | struct cxd *ci = ca->data; | |
630 | u8 msb, lsb; | |
631 | u16 len; | |
632 | ||
633 | mutex_lock(&ci->lock); | |
634 | campoll(ci); | |
635 | mutex_unlock(&ci->lock); | |
636 | ||
011b2aad | 637 | dev_info(&ci->i2c->dev, "read_data\n"); |
0f0b270f RM |
638 | if (!ci->dr) |
639 | return 0; | |
640 | ||
641 | mutex_lock(&ci->lock); | |
642 | read_reg(ci, 0x0f, &msb); | |
643 | read_reg(ci, 0x10, &lsb); | |
644 | len = (msb<<8)|lsb; | |
645 | read_block(ci, 0x12, ebuf, len); | |
646 | ci->dr = 0; | |
647 | mutex_unlock(&ci->lock); | |
648 | ||
649 | return len; | |
650 | } | |
651 | ||
652 | static int write_data(struct dvb_ca_en50221 *ca, int slot, u8 *ebuf, int ecount) | |
653 | { | |
654 | struct cxd *ci = ca->data; | |
655 | ||
656 | mutex_lock(&ci->lock); | |
9daf9bcc | 657 | printk(kern_INFO "write_data %d\n", ecount); |
0f0b270f RM |
658 | write_reg(ci, 0x0d, ecount>>8); |
659 | write_reg(ci, 0x0e, ecount&0xff); | |
660 | write_block(ci, 0x11, ebuf, ecount); | |
661 | mutex_unlock(&ci->lock); | |
662 | return ecount; | |
663 | } | |
664 | #endif | |
665 | ||
666 | static struct dvb_ca_en50221 en_templ = { | |
667 | .read_attribute_mem = read_attribute_mem, | |
668 | .write_attribute_mem = write_attribute_mem, | |
669 | .read_cam_control = read_cam_control, | |
670 | .write_cam_control = write_cam_control, | |
671 | .slot_reset = slot_reset, | |
672 | .slot_shutdown = slot_shutdown, | |
673 | .slot_ts_enable = slot_ts_enable, | |
674 | .poll_slot_status = poll_slot_status, | |
675 | #ifdef BUFFER_MODE | |
676 | .read_data = read_data, | |
677 | .write_data = write_data, | |
678 | #endif | |
679 | ||
680 | }; | |
681 | ||
6eb94193 RM |
682 | struct dvb_ca_en50221 *cxd2099_attach(struct cxd2099_cfg *cfg, |
683 | void *priv, | |
0f0b270f RM |
684 | struct i2c_adapter *i2c) |
685 | { | |
4aff355c | 686 | struct cxd *ci; |
0f0b270f RM |
687 | u8 val; |
688 | ||
9daf9bcc | 689 | if (i2c_read_reg(i2c, cfg->adr, 0, &val) < 0) { |
011b2aad | 690 | dev_info(&i2c->dev, "No CXD2099 detected at %02x\n", cfg->adr); |
4aff355c | 691 | return NULL; |
0f0b270f RM |
692 | } |
693 | ||
ada3678c | 694 | ci = kzalloc(sizeof(struct cxd), GFP_KERNEL); |
0f0b270f | 695 | if (!ci) |
4aff355c | 696 | return NULL; |
0f0b270f RM |
697 | |
698 | mutex_init(&ci->lock); | |
8d9b2584 | 699 | ci->cfg = *cfg; |
0f0b270f | 700 | ci->i2c = i2c; |
0f0b270f RM |
701 | ci->lastaddress = 0xff; |
702 | ci->clk_reg_b = 0x4a; | |
703 | ci->clk_reg_f = 0x1b; | |
0f0b270f | 704 | |
8d9b2584 | 705 | ci->en = en_templ; |
0f0b270f RM |
706 | ci->en.data = ci; |
707 | init(ci); | |
011b2aad | 708 | dev_info(&i2c->dev, "Attached CXD2099AR at %02x\n", ci->cfg.adr); |
0f0b270f RM |
709 | return &ci->en; |
710 | } | |
711 | EXPORT_SYMBOL(cxd2099_attach); | |
712 | ||
713 | MODULE_DESCRIPTION("cxd2099"); | |
6eb94193 | 714 | MODULE_AUTHOR("Ralph Metzler"); |
0f0b270f | 715 | MODULE_LICENSE("GPL"); |