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authorMauro Carvalho Chehab <mchehab@redhat.com>2011-01-17 11:20:49 -0500
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-03-21 19:31:47 -0400
commit8112248a1b66440f6c562c2669aba6950ef48199 (patch)
tree28385b1a662af1e7793e932cb51c31821087fbd7 /drivers/media/dvb/ngene
parent4862d6b2e23f0573ef60c784341e05e1ac0804eb (diff)
[media] Move CI cxd2099 driver to staging
This driver is abusing the kernel<=>userspace API, due to the lack of a proper solution for it. A discussion were done at: http://www.mail-archive.com/linux-media@vger.kernel.org/msg22196.html But there's not a solution for it yet. So, move the driver to staging, while we don't have a final solution. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/ngene')
-rw-r--r--drivers/media/dvb/ngene/Makefile5
-rw-r--r--drivers/media/dvb/ngene/cxd2099.c574
-rw-r--r--drivers/media/dvb/ngene/cxd2099.h32
3 files changed, 4 insertions, 607 deletions
diff --git a/drivers/media/dvb/ngene/Makefile b/drivers/media/dvb/ngene/Makefile
index 00d12d6c4618..2bc96874d044 100644
--- a/drivers/media/dvb/ngene/Makefile
+++ b/drivers/media/dvb/ngene/Makefile
@@ -2,10 +2,13 @@
2# Makefile for the nGene device driver 2# Makefile for the nGene device driver
3# 3#
4 4
5ngene-objs := ngene-core.o ngene-i2c.o ngene-cards.o ngene-dvb.o cxd2099.o 5ngene-objs := ngene-core.o ngene-i2c.o ngene-cards.o ngene-dvb.o
6 6
7obj-$(CONFIG_DVB_NGENE) += ngene.o 7obj-$(CONFIG_DVB_NGENE) += ngene.o
8 8
9EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ 9EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/
10EXTRA_CFLAGS += -Idrivers/media/dvb/frontends/ 10EXTRA_CFLAGS += -Idrivers/media/dvb/frontends/
11EXTRA_CFLAGS += -Idrivers/media/common/tuners/ 11EXTRA_CFLAGS += -Idrivers/media/common/tuners/
12
13# For the staging CI driver cxd2099
14EXTRA_CFLAGS += -Idrivers/staging/cxd2099/
diff --git a/drivers/media/dvb/ngene/cxd2099.c b/drivers/media/dvb/ngene/cxd2099.c
deleted file mode 100644
index b49186c74eb3..000000000000
--- a/drivers/media/dvb/ngene/cxd2099.c
+++ /dev/null
@@ -1,574 +0,0 @@
1/*
2 * cxd2099.c: Driver for the CXD2099AR Common Interface Controller
3 *
4 * Copyright (C) 2010 DigitalDevices UG
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
25#include <linux/version.h>
26#include <linux/slab.h>
27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/moduleparam.h>
30#include <linux/init.h>
31#include <linux/i2c.h>
32#include <linux/wait.h>
33#include <linux/delay.h>
34#include <linux/mutex.h>
35#include <linux/io.h>
36
37#include "cxd2099.h"
38
39#define MAX_BUFFER_SIZE 248
40
41struct cxd {
42 struct dvb_ca_en50221 en;
43
44 struct i2c_adapter *i2c;
45 u8 adr;
46 u8 regs[0x23];
47 u8 lastaddress;
48 u8 clk_reg_f;
49 u8 clk_reg_b;
50 int mode;
51 u32 bitrate;
52 int ready;
53 int dr;
54 int slot_stat;
55
56 u8 amem[1024];
57 int amem_read;
58
59 int cammode;
60 struct mutex lock;
61};
62
63static int i2c_write_reg(struct i2c_adapter *adapter, u8 adr,
64 u8 reg, u8 data)
65{
66 u8 m[2] = {reg, data};
67 struct i2c_msg msg = {.addr = adr, .flags = 0, .buf = m, .len = 2};
68
69 if (i2c_transfer(adapter, &msg, 1) != 1) {
70 printk(KERN_ERR "Failed to write to I2C register %02x@%02x!\n",
71 reg, adr);
72 return -1;
73 }
74 return 0;
75}
76
77static int i2c_write(struct i2c_adapter *adapter, u8 adr,
78 u8 *data, u8 len)
79{
80 struct i2c_msg msg = {.addr = adr, .flags = 0, .buf = data, .len = len};
81
82 if (i2c_transfer(adapter, &msg, 1) != 1) {
83 printk(KERN_ERR "Failed to write to I2C!\n");
84 return -1;
85 }
86 return 0;
87}
88
89static int i2c_read_reg(struct i2c_adapter *adapter, u8 adr,
90 u8 reg, u8 *val)
91{
92 struct i2c_msg msgs[2] = {{.addr = adr, .flags = 0,
93 .buf = &reg, .len = 1 },
94 {.addr = adr, .flags = I2C_M_RD,
95 .buf = val, .len = 1 } };
96
97 if (i2c_transfer(adapter, msgs, 2) != 2) {
98 printk(KERN_ERR "error in i2c_read_reg\n");
99 return -1;
100 }
101 return 0;
102}
103
104static int i2c_read(struct i2c_adapter *adapter, u8 adr,
105 u8 reg, u8 *data, u8 n)
106{
107 struct i2c_msg msgs[2] = {{.addr = adr, .flags = 0,
108 .buf = &reg, .len = 1 },
109 {.addr = adr, .flags = I2C_M_RD,
110 .buf = data, .len = n } };
111
112 if (i2c_transfer(adapter, msgs, 2) != 2) {
113 printk(KERN_ERR "error in i2c_read\n");
114 return -1;
115 }
116 return 0;
117}
118
119static int read_block(struct cxd *ci, u8 adr, u8 *data, u8 n)
120{
121 int status;
122
123 status = i2c_write_reg(ci->i2c, ci->adr, 0, adr);
124 if (!status) {
125 ci->lastaddress = adr;
126 status = i2c_read(ci->i2c, ci->adr, 1, data, n);
127 }
128 return status;
129}
130
131static int read_reg(struct cxd *ci, u8 reg, u8 *val)
132{
133 return read_block(ci, reg, val, 1);
134}
135
136
137static int read_pccard(struct cxd *ci, u16 address, u8 *data, u8 n)
138{
139 int status;
140 u8 addr[3] = { 2, address&0xff, address>>8 };
141
142 status = i2c_write(ci->i2c, ci->adr, addr, 3);
143 if (!status)
144 status = i2c_read(ci->i2c, ci->adr, 3, data, n);
145 return status;
146}
147
148static int write_pccard(struct cxd *ci, u16 address, u8 *data, u8 n)
149{
150 int status;
151 u8 addr[3] = { 2, address&0xff, address>>8 };
152
153 status = i2c_write(ci->i2c, ci->adr, addr, 3);
154 if (!status) {
155 u8 buf[256] = {3};
156 memcpy(buf+1, data, n);
157 status = i2c_write(ci->i2c, ci->adr, buf, n+1);
158 }
159 return status;
160}
161
162static int read_io(struct cxd *ci, u16 address, u8 *val)
163{
164 int status;
165 u8 addr[3] = { 2, address&0xff, address>>8 };
166
167 status = i2c_write(ci->i2c, ci->adr, addr, 3);
168 if (!status)
169 status = i2c_read(ci->i2c, ci->adr, 3, val, 1);
170 return status;
171}
172
173static int write_io(struct cxd *ci, u16 address, u8 val)
174{
175 int status;
176 u8 addr[3] = { 2, address&0xff, address>>8 };
177 u8 buf[2] = { 3, val };
178
179 status = i2c_write(ci->i2c, ci->adr, addr, 3);
180 if (!status)
181 status = i2c_write(ci->i2c, ci->adr, buf, 2);
182
183 return status;
184}
185
186
187static int write_regm(struct cxd *ci, u8 reg, u8 val, u8 mask)
188{
189 int status;
190
191 status = i2c_write_reg(ci->i2c, ci->adr, 0, reg);
192 if (!status && reg >= 6 && reg <= 8 && mask != 0xff)
193 status = i2c_read_reg(ci->i2c, ci->adr, 1, &ci->regs[reg]);
194 ci->regs[reg] = (ci->regs[reg]&(~mask))|val;
195 if (!status) {
196 ci->lastaddress = reg;
197 status = i2c_write_reg(ci->i2c, ci->adr, 1, ci->regs[reg]);
198 }
199 if (reg == 0x20)
200 ci->regs[reg] &= 0x7f;
201 return status;
202}
203
204static int write_reg(struct cxd *ci, u8 reg, u8 val)
205{
206 return write_regm(ci, reg, val, 0xff);
207}
208
209#ifdef BUFFER_MODE
210static int write_block(struct cxd *ci, u8 adr, u8 *data, int n)
211{
212 int status;
213 u8 buf[256] = {1};
214
215 status = i2c_write_reg(ci->i2c, ci->adr, 0, adr);
216 if (!status) {
217 ci->lastaddress = adr;
218 memcpy(buf+1, data, n);
219 status = i2c_write(ci->i2c, ci->adr, buf, n+1);
220 }
221 return status;
222}
223#endif
224
225static void set_mode(struct cxd *ci, int mode)
226{
227 if (mode == ci->mode)
228 return;
229
230 switch (mode) {
231 case 0x00: /* IO mem */
232 write_regm(ci, 0x06, 0x00, 0x07);
233 break;
234 case 0x01: /* ATT mem */
235 write_regm(ci, 0x06, 0x02, 0x07);
236 break;
237 default:
238 break;
239 }
240 ci->mode = mode;
241}
242
243static void cam_mode(struct cxd *ci, int mode)
244{
245 if (mode == ci->cammode)
246 return;
247
248 switch (mode) {
249 case 0x00:
250 write_regm(ci, 0x20, 0x80, 0x80);
251 break;
252 case 0x01:
253 printk(KERN_INFO "enable cam buffer mode\n");
254 /* write_reg(ci, 0x0d, 0x00); */
255 /* write_reg(ci, 0x0e, 0x01); */
256 write_regm(ci, 0x08, 0x40, 0x40);
257 /* read_reg(ci, 0x12, &dummy); */
258 write_regm(ci, 0x08, 0x80, 0x80);
259 break;
260 default:
261 break;
262 }
263 ci->cammode = mode;
264}
265
266
267
268#define CHK_ERROR(s) if ((status = s)) break
269
270static int init(struct cxd *ci)
271{
272 int status;
273
274 mutex_lock(&ci->lock);
275 ci->mode = -1;
276 do {
277 CHK_ERROR(write_reg(ci, 0x00, 0x00));
278 CHK_ERROR(write_reg(ci, 0x01, 0x00));
279 CHK_ERROR(write_reg(ci, 0x02, 0x10));
280 CHK_ERROR(write_reg(ci, 0x03, 0x00));
281 CHK_ERROR(write_reg(ci, 0x05, 0xFF));
282 CHK_ERROR(write_reg(ci, 0x06, 0x1F));
283 CHK_ERROR(write_reg(ci, 0x07, 0x1F));
284 CHK_ERROR(write_reg(ci, 0x08, 0x28));
285 CHK_ERROR(write_reg(ci, 0x14, 0x20));
286
287 CHK_ERROR(write_reg(ci, 0x09, 0x4D)); /* Input Mode C, BYPass Serial, TIVAL = low, MSB */
288 CHK_ERROR(write_reg(ci, 0x0A, 0xA7)); /* TOSTRT = 8, Mode B (gated clock), falling Edge, Serial, POL=HIGH, MSB */
289
290 /* Sync detector */
291 CHK_ERROR(write_reg(ci, 0x0B, 0x33));
292 CHK_ERROR(write_reg(ci, 0x0C, 0x33));
293
294 CHK_ERROR(write_regm(ci, 0x14, 0x00, 0x0F));
295 CHK_ERROR(write_reg(ci, 0x15, ci->clk_reg_b));
296 CHK_ERROR(write_regm(ci, 0x16, 0x00, 0x0F));
297 CHK_ERROR(write_reg(ci, 0x17, ci->clk_reg_f));
298
299 CHK_ERROR(write_reg(ci, 0x20, 0x28)); /* Integer Divider, Falling Edge, Internal Sync, */
300 CHK_ERROR(write_reg(ci, 0x21, 0x00)); /* MCLKI = TICLK/8 */
301 CHK_ERROR(write_reg(ci, 0x22, 0x07)); /* MCLKI = TICLK/8 */
302
303
304 CHK_ERROR(write_regm(ci, 0x20, 0x80, 0x80)); /* Reset CAM state machine */
305
306 CHK_ERROR(write_regm(ci, 0x03, 0x02, 02)); /* Enable IREQA Interrupt */
307 CHK_ERROR(write_reg(ci, 0x01, 0x04)); /* Enable CD Interrupt */
308 CHK_ERROR(write_reg(ci, 0x00, 0x31)); /* Enable TS1,Hot Swap,Slot A */
309 CHK_ERROR(write_regm(ci, 0x09, 0x08, 0x08)); /* Put TS in bypass */
310 ci->cammode = -1;
311#ifdef BUFFER_MODE
312 cam_mode(ci, 0);
313#endif
314 } while (0);
315 mutex_unlock(&ci->lock);
316
317 return 0;
318}
319
320
321static int read_attribute_mem(struct dvb_ca_en50221 *ca,
322 int slot, int address)
323{
324 struct cxd *ci = ca->data;
325 u8 val;
326 mutex_lock(&ci->lock);
327 set_mode(ci, 1);
328 read_pccard(ci, address, &val, 1);
329 mutex_unlock(&ci->lock);
330 return val;
331}
332
333
334static int write_attribute_mem(struct dvb_ca_en50221 *ca, int slot,
335 int address, u8 value)
336{
337 struct cxd *ci = ca->data;
338
339 mutex_lock(&ci->lock);
340 set_mode(ci, 1);
341 write_pccard(ci, address, &value, 1);
342 mutex_unlock(&ci->lock);
343 return 0;
344}
345
346static int read_cam_control(struct dvb_ca_en50221 *ca,
347 int slot, u8 address)
348{
349 struct cxd *ci = ca->data;
350 u8 val;
351
352 mutex_lock(&ci->lock);
353 set_mode(ci, 0);
354 read_io(ci, address, &val);
355 mutex_unlock(&ci->lock);
356 return val;
357}
358
359static int write_cam_control(struct dvb_ca_en50221 *ca, int slot,
360 u8 address, u8 value)
361{
362 struct cxd *ci = ca->data;
363
364 mutex_lock(&ci->lock);
365 set_mode(ci, 0);
366 write_io(ci, address, value);
367 mutex_unlock(&ci->lock);
368 return 0;
369}
370
371static int slot_reset(struct dvb_ca_en50221 *ca, int slot)
372{
373 struct cxd *ci = ca->data;
374
375 mutex_lock(&ci->lock);
376 cam_mode(ci, 0);
377 write_reg(ci, 0x00, 0x21);
378 write_reg(ci, 0x06, 0x1F);
379 write_reg(ci, 0x00, 0x31);
380 write_regm(ci, 0x20, 0x80, 0x80);
381 write_reg(ci, 0x03, 0x02);
382 ci->ready = 0;
383 ci->mode = -1;
384 {
385 int i;
386 for (i = 0; i < 100; i++) {
387 msleep(10);
388 if (ci->ready)
389 break;
390 }
391 }
392 mutex_unlock(&ci->lock);
393 /* msleep(500); */
394 return 0;
395}
396
397static int slot_shutdown(struct dvb_ca_en50221 *ca, int slot)
398{
399 struct cxd *ci = ca->data;
400
401 printk(KERN_INFO "slot_shutdown\n");
402 mutex_lock(&ci->lock);
403 /* write_regm(ci, 0x09, 0x08, 0x08); */
404 write_regm(ci, 0x20, 0x80, 0x80);
405 write_regm(ci, 0x06, 0x07, 0x07);
406 ci->mode = -1;
407 mutex_unlock(&ci->lock);
408 return 0; /* shutdown(ci); */
409}
410
411static int slot_ts_enable(struct dvb_ca_en50221 *ca, int slot)
412{
413 struct cxd *ci = ca->data;
414
415 mutex_lock(&ci->lock);
416 write_regm(ci, 0x09, 0x00, 0x08);
417 set_mode(ci, 0);
418#ifdef BUFFER_MODE
419 cam_mode(ci, 1);
420#endif
421 mutex_unlock(&ci->lock);
422 return 0;
423}
424
425
426static int campoll(struct cxd *ci)
427{
428 u8 istat;
429
430 read_reg(ci, 0x04, &istat);
431 if (!istat)
432 return 0;
433 write_reg(ci, 0x05, istat);
434
435 if (istat&0x40) {
436 ci->dr = 1;
437 printk(KERN_INFO "DR\n");
438 }
439 if (istat&0x20)
440 printk(KERN_INFO "WC\n");
441
442 if (istat&2) {
443 u8 slotstat;
444
445 read_reg(ci, 0x01, &slotstat);
446 if (!(2&slotstat)) {
447 if (!ci->slot_stat) {
448 ci->slot_stat |= DVB_CA_EN50221_POLL_CAM_PRESENT;
449 write_regm(ci, 0x03, 0x08, 0x08);
450 }
451
452 } else {
453 if (ci->slot_stat) {
454 ci->slot_stat = 0;
455 write_regm(ci, 0x03, 0x00, 0x08);
456 printk(KERN_INFO "NO CAM\n");
457 ci->ready = 0;
458 }
459 }
460 if (istat&8 && ci->slot_stat == DVB_CA_EN50221_POLL_CAM_PRESENT) {
461 ci->ready = 1;
462 ci->slot_stat |= DVB_CA_EN50221_POLL_CAM_READY;
463 printk(KERN_INFO "READY\n");
464 }
465 }
466 return 0;
467}
468
469
470static int poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open)
471{
472 struct cxd *ci = ca->data;
473 u8 slotstat;
474
475 mutex_lock(&ci->lock);
476 campoll(ci);
477 read_reg(ci, 0x01, &slotstat);
478 mutex_unlock(&ci->lock);
479
480 return ci->slot_stat;
481}
482
483#ifdef BUFFER_MODE
484static int read_data(struct dvb_ca_en50221 *ca, int slot, u8 *ebuf, int ecount)
485{
486 struct cxd *ci = ca->data;
487 u8 msb, lsb;
488 u16 len;
489
490 mutex_lock(&ci->lock);
491 campoll(ci);
492 mutex_unlock(&ci->lock);
493
494 printk(KERN_INFO "read_data\n");
495 if (!ci->dr)
496 return 0;
497
498 mutex_lock(&ci->lock);
499 read_reg(ci, 0x0f, &msb);
500 read_reg(ci, 0x10, &lsb);
501 len = (msb<<8)|lsb;
502 read_block(ci, 0x12, ebuf, len);
503 ci->dr = 0;
504 mutex_unlock(&ci->lock);
505
506 return len;
507}
508
509static int write_data(struct dvb_ca_en50221 *ca, int slot, u8 *ebuf, int ecount)
510{
511 struct cxd *ci = ca->data;
512
513 mutex_lock(&ci->lock);
514 printk(KERN_INFO "write_data %d\n", ecount);
515 write_reg(ci, 0x0d, ecount>>8);
516 write_reg(ci, 0x0e, ecount&0xff);
517 write_block(ci, 0x11, ebuf, ecount);
518 mutex_unlock(&ci->lock);
519 return ecount;
520}
521#endif
522
523static struct dvb_ca_en50221 en_templ = {
524 .read_attribute_mem = read_attribute_mem,
525 .write_attribute_mem = write_attribute_mem,
526 .read_cam_control = read_cam_control,
527 .write_cam_control = write_cam_control,
528 .slot_reset = slot_reset,
529 .slot_shutdown = slot_shutdown,
530 .slot_ts_enable = slot_ts_enable,
531 .poll_slot_status = poll_slot_status,
532#ifdef BUFFER_MODE
533 .read_data = read_data,
534 .write_data = write_data,
535#endif
536
537};
538
539struct dvb_ca_en50221 *cxd2099_attach(u8 adr, void *priv,
540 struct i2c_adapter *i2c)
541{
542 struct cxd *ci = 0;
543 u32 bitrate = 62000000;
544 u8 val;
545
546 if (i2c_read_reg(i2c, adr, 0, &val) < 0) {
547 printk(KERN_ERR "No CXD2099 detected at %02x\n", adr);
548 return 0;
549 }
550
551 ci = kmalloc(sizeof(struct cxd), GFP_KERNEL);
552 if (!ci)
553 return 0;
554 memset(ci, 0, sizeof(*ci));
555
556 mutex_init(&ci->lock);
557 ci->i2c = i2c;
558 ci->adr = adr;
559 ci->lastaddress = 0xff;
560 ci->clk_reg_b = 0x4a;
561 ci->clk_reg_f = 0x1b;
562 ci->bitrate = bitrate;
563
564 memcpy(&ci->en, &en_templ, sizeof(en_templ));
565 ci->en.data = ci;
566 init(ci);
567 printk(KERN_INFO "Attached CXD2099AR at %02x\n", ci->adr);
568 return &ci->en;
569}
570EXPORT_SYMBOL(cxd2099_attach);
571
572MODULE_DESCRIPTION("cxd2099");
573MODULE_AUTHOR("Ralph Metzler <rjkm@metzlerbros.de>");
574MODULE_LICENSE("GPL");
diff --git a/drivers/media/dvb/ngene/cxd2099.h b/drivers/media/dvb/ngene/cxd2099.h
deleted file mode 100644
index f71b807e8bb7..000000000000
--- a/drivers/media/dvb/ngene/cxd2099.h
+++ /dev/null
@@ -1,32 +0,0 @@
1/*
2 * cxd2099.h: Driver for the CXD2099AR Common Interface Controller
3 *
4 * Copyright (C) 2010 DigitalDevices UG
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
25#ifndef _CXD2099_H_
26#define _CXD2099_H_
27
28#include <dvb_ca_en50221.h>
29
30struct dvb_ca_en50221 *cxd2099_attach(u8 adr, void *priv, struct i2c_adapter *i2c);
31
32#endif
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