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Merge tag 'mmc-merge-for-3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
[mirror_ubuntu-zesty-kernel.git] / drivers / media / pci / ddbridge / ddbridge-core.c
1 /*
2 * ddbridge.c: Digital Devices PCIe bridge driver
3 *
4 * Copyright (C) 2010-2011 Digital Devices GmbH
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * version 2 only, as published by the Free Software Foundation.
9 *
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20 * 02110-1301, USA
21 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
22 */
23
24 #include <linux/module.h>
25 #include <linux/init.h>
26 #include <linux/interrupt.h>
27 #include <linux/delay.h>
28 #include <linux/slab.h>
29 #include <linux/poll.h>
30 #include <linux/io.h>
31 #include <linux/pci.h>
32 #include <linux/pci_ids.h>
33 #include <linux/timer.h>
34 #include <linux/i2c.h>
35 #include <linux/swab.h>
36 #include <linux/vmalloc.h>
37 #include "ddbridge.h"
38
39 #include "ddbridge-regs.h"
40
41 #include "tda18271c2dd.h"
42 #include "stv6110x.h"
43 #include "stv090x.h"
44 #include "lnbh24.h"
45 #include "drxk.h"
46
47 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
48
49 /* MSI had problems with lost interrupts, fixed but needs testing */
50 #undef CONFIG_PCI_MSI
51
52 /******************************************************************************/
53
54 static int i2c_read(struct i2c_adapter *adapter, u8 adr, u8 *val)
55 {
56 struct i2c_msg msgs[1] = {{.addr = adr, .flags = I2C_M_RD,
57 .buf = val, .len = 1 } };
58 return (i2c_transfer(adapter, msgs, 1) == 1) ? 0 : -1;
59 }
60
61 static int i2c_read_reg(struct i2c_adapter *adapter, u8 adr, u8 reg, u8 *val)
62 {
63 struct i2c_msg msgs[2] = {{.addr = adr, .flags = 0,
64 .buf = &reg, .len = 1 },
65 {.addr = adr, .flags = I2C_M_RD,
66 .buf = val, .len = 1 } };
67 return (i2c_transfer(adapter, msgs, 2) == 2) ? 0 : -1;
68 }
69
70 static int i2c_read_reg16(struct i2c_adapter *adapter, u8 adr,
71 u16 reg, u8 *val)
72 {
73 u8 msg[2] = {reg>>8, reg&0xff};
74 struct i2c_msg msgs[2] = {{.addr = adr, .flags = 0,
75 .buf = msg, .len = 2},
76 {.addr = adr, .flags = I2C_M_RD,
77 .buf = val, .len = 1} };
78 return (i2c_transfer(adapter, msgs, 2) == 2) ? 0 : -1;
79 }
80
81 static int ddb_i2c_cmd(struct ddb_i2c *i2c, u32 adr, u32 cmd)
82 {
83 struct ddb *dev = i2c->dev;
84 int stat;
85 u32 val;
86
87 i2c->done = 0;
88 ddbwritel((adr << 9) | cmd, i2c->regs + I2C_COMMAND);
89 stat = wait_event_timeout(i2c->wq, i2c->done == 1, HZ);
90 if (stat <= 0) {
91 printk(KERN_ERR "I2C timeout\n");
92 { /* MSI debugging*/
93 u32 istat = ddbreadl(INTERRUPT_STATUS);
94 printk(KERN_ERR "IRS %08x\n", istat);
95 ddbwritel(istat, INTERRUPT_ACK);
96 }
97 return -EIO;
98 }
99 val = ddbreadl(i2c->regs+I2C_COMMAND);
100 if (val & 0x70000)
101 return -EIO;
102 return 0;
103 }
104
105 static int ddb_i2c_master_xfer(struct i2c_adapter *adapter,
106 struct i2c_msg msg[], int num)
107 {
108 struct ddb_i2c *i2c = (struct ddb_i2c *)i2c_get_adapdata(adapter);
109 struct ddb *dev = i2c->dev;
110 u8 addr = 0;
111
112 if (num)
113 addr = msg[0].addr;
114
115 if (num == 2 && msg[1].flags & I2C_M_RD &&
116 !(msg[0].flags & I2C_M_RD)) {
117 memcpy_toio(dev->regs + I2C_TASKMEM_BASE + i2c->wbuf,
118 msg[0].buf, msg[0].len);
119 ddbwritel(msg[0].len|(msg[1].len << 16),
120 i2c->regs+I2C_TASKLENGTH);
121 if (!ddb_i2c_cmd(i2c, addr, 1)) {
122 memcpy_fromio(msg[1].buf,
123 dev->regs + I2C_TASKMEM_BASE + i2c->rbuf,
124 msg[1].len);
125 return num;
126 }
127 }
128
129 if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
130 ddbcpyto(I2C_TASKMEM_BASE + i2c->wbuf, msg[0].buf, msg[0].len);
131 ddbwritel(msg[0].len, i2c->regs + I2C_TASKLENGTH);
132 if (!ddb_i2c_cmd(i2c, addr, 2))
133 return num;
134 }
135 if (num == 1 && (msg[0].flags & I2C_M_RD)) {
136 ddbwritel(msg[0].len << 16, i2c->regs + I2C_TASKLENGTH);
137 if (!ddb_i2c_cmd(i2c, addr, 3)) {
138 ddbcpyfrom(msg[0].buf,
139 I2C_TASKMEM_BASE + i2c->rbuf, msg[0].len);
140 return num;
141 }
142 }
143 return -EIO;
144 }
145
146
147 static u32 ddb_i2c_functionality(struct i2c_adapter *adap)
148 {
149 return I2C_FUNC_SMBUS_EMUL;
150 }
151
152 struct i2c_algorithm ddb_i2c_algo = {
153 .master_xfer = ddb_i2c_master_xfer,
154 .functionality = ddb_i2c_functionality,
155 };
156
157 static void ddb_i2c_release(struct ddb *dev)
158 {
159 int i;
160 struct ddb_i2c *i2c;
161 struct i2c_adapter *adap;
162
163 for (i = 0; i < dev->info->port_num; i++) {
164 i2c = &dev->i2c[i];
165 adap = &i2c->adap;
166 i2c_del_adapter(adap);
167 }
168 }
169
170 static int ddb_i2c_init(struct ddb *dev)
171 {
172 int i, j, stat = 0;
173 struct ddb_i2c *i2c;
174 struct i2c_adapter *adap;
175
176 for (i = 0; i < dev->info->port_num; i++) {
177 i2c = &dev->i2c[i];
178 i2c->dev = dev;
179 i2c->nr = i;
180 i2c->wbuf = i * (I2C_TASKMEM_SIZE / 4);
181 i2c->rbuf = i2c->wbuf + (I2C_TASKMEM_SIZE / 8);
182 i2c->regs = 0x80 + i * 0x20;
183 ddbwritel(I2C_SPEED_100, i2c->regs + I2C_TIMING);
184 ddbwritel((i2c->rbuf << 16) | i2c->wbuf,
185 i2c->regs + I2C_TASKADDRESS);
186 init_waitqueue_head(&i2c->wq);
187
188 adap = &i2c->adap;
189 i2c_set_adapdata(adap, i2c);
190 #ifdef I2C_ADAP_CLASS_TV_DIGITAL
191 adap->class = I2C_ADAP_CLASS_TV_DIGITAL|I2C_CLASS_TV_ANALOG;
192 #else
193 #ifdef I2C_CLASS_TV_ANALOG
194 adap->class = I2C_CLASS_TV_ANALOG;
195 #endif
196 #endif
197 strcpy(adap->name, "ddbridge");
198 adap->algo = &ddb_i2c_algo;
199 adap->algo_data = (void *)i2c;
200 adap->dev.parent = &dev->pdev->dev;
201 stat = i2c_add_adapter(adap);
202 if (stat)
203 break;
204 }
205 if (stat)
206 for (j = 0; j < i; j++) {
207 i2c = &dev->i2c[j];
208 adap = &i2c->adap;
209 i2c_del_adapter(adap);
210 }
211 return stat;
212 }
213
214
215 /******************************************************************************/
216 /******************************************************************************/
217 /******************************************************************************/
218
219 #if 0
220 static void set_table(struct ddb *dev, u32 off,
221 dma_addr_t *pbuf, u32 num)
222 {
223 u32 i, base;
224 u64 mem;
225
226 base = DMA_BASE_ADDRESS_TABLE + off;
227 for (i = 0; i < num; i++) {
228 mem = pbuf[i];
229 ddbwritel(mem & 0xffffffff, base + i * 8);
230 ddbwritel(mem >> 32, base + i * 8 + 4);
231 }
232 }
233 #endif
234
235 static void ddb_address_table(struct ddb *dev)
236 {
237 u32 i, j, base;
238 u64 mem;
239 dma_addr_t *pbuf;
240
241 for (i = 0; i < dev->info->port_num * 2; i++) {
242 base = DMA_BASE_ADDRESS_TABLE + i * 0x100;
243 pbuf = dev->input[i].pbuf;
244 for (j = 0; j < dev->input[i].dma_buf_num; j++) {
245 mem = pbuf[j];
246 ddbwritel(mem & 0xffffffff, base + j * 8);
247 ddbwritel(mem >> 32, base + j * 8 + 4);
248 }
249 }
250 for (i = 0; i < dev->info->port_num; i++) {
251 base = DMA_BASE_ADDRESS_TABLE + 0x800 + i * 0x100;
252 pbuf = dev->output[i].pbuf;
253 for (j = 0; j < dev->output[i].dma_buf_num; j++) {
254 mem = pbuf[j];
255 ddbwritel(mem & 0xffffffff, base + j * 8);
256 ddbwritel(mem >> 32, base + j * 8 + 4);
257 }
258 }
259 }
260
261 static void io_free(struct pci_dev *pdev, u8 **vbuf,
262 dma_addr_t *pbuf, u32 size, int num)
263 {
264 int i;
265
266 for (i = 0; i < num; i++) {
267 if (vbuf[i]) {
268 pci_free_consistent(pdev, size, vbuf[i], pbuf[i]);
269 vbuf[i] = 0;
270 }
271 }
272 }
273
274 static int io_alloc(struct pci_dev *pdev, u8 **vbuf,
275 dma_addr_t *pbuf, u32 size, int num)
276 {
277 int i;
278
279 for (i = 0; i < num; i++) {
280 vbuf[i] = pci_alloc_consistent(pdev, size, &pbuf[i]);
281 if (!vbuf[i])
282 return -ENOMEM;
283 }
284 return 0;
285 }
286
287 static int ddb_buffers_alloc(struct ddb *dev)
288 {
289 int i;
290 struct ddb_port *port;
291
292 for (i = 0; i < dev->info->port_num; i++) {
293 port = &dev->port[i];
294 switch (port->class) {
295 case DDB_PORT_TUNER:
296 if (io_alloc(dev->pdev, port->input[0]->vbuf,
297 port->input[0]->pbuf,
298 port->input[0]->dma_buf_size,
299 port->input[0]->dma_buf_num) < 0)
300 return -1;
301 if (io_alloc(dev->pdev, port->input[1]->vbuf,
302 port->input[1]->pbuf,
303 port->input[1]->dma_buf_size,
304 port->input[1]->dma_buf_num) < 0)
305 return -1;
306 break;
307 case DDB_PORT_CI:
308 if (io_alloc(dev->pdev, port->input[0]->vbuf,
309 port->input[0]->pbuf,
310 port->input[0]->dma_buf_size,
311 port->input[0]->dma_buf_num) < 0)
312 return -1;
313 if (io_alloc(dev->pdev, port->output->vbuf,
314 port->output->pbuf,
315 port->output->dma_buf_size,
316 port->output->dma_buf_num) < 0)
317 return -1;
318 break;
319 default:
320 break;
321 }
322 }
323 ddb_address_table(dev);
324 return 0;
325 }
326
327 static void ddb_buffers_free(struct ddb *dev)
328 {
329 int i;
330 struct ddb_port *port;
331
332 for (i = 0; i < dev->info->port_num; i++) {
333 port = &dev->port[i];
334 io_free(dev->pdev, port->input[0]->vbuf,
335 port->input[0]->pbuf,
336 port->input[0]->dma_buf_size,
337 port->input[0]->dma_buf_num);
338 io_free(dev->pdev, port->input[1]->vbuf,
339 port->input[1]->pbuf,
340 port->input[1]->dma_buf_size,
341 port->input[1]->dma_buf_num);
342 io_free(dev->pdev, port->output->vbuf,
343 port->output->pbuf,
344 port->output->dma_buf_size,
345 port->output->dma_buf_num);
346 }
347 }
348
349 static void ddb_input_start(struct ddb_input *input)
350 {
351 struct ddb *dev = input->port->dev;
352
353 spin_lock_irq(&input->lock);
354 input->cbuf = 0;
355 input->coff = 0;
356
357 /* reset */
358 ddbwritel(0, TS_INPUT_CONTROL(input->nr));
359 ddbwritel(2, TS_INPUT_CONTROL(input->nr));
360 ddbwritel(0, TS_INPUT_CONTROL(input->nr));
361
362 ddbwritel((1 << 16) |
363 (input->dma_buf_num << 11) |
364 (input->dma_buf_size >> 7),
365 DMA_BUFFER_SIZE(input->nr));
366 ddbwritel(0, DMA_BUFFER_ACK(input->nr));
367
368 ddbwritel(1, DMA_BASE_WRITE);
369 ddbwritel(3, DMA_BUFFER_CONTROL(input->nr));
370 ddbwritel(9, TS_INPUT_CONTROL(input->nr));
371 input->running = 1;
372 spin_unlock_irq(&input->lock);
373 }
374
375 static void ddb_input_stop(struct ddb_input *input)
376 {
377 struct ddb *dev = input->port->dev;
378
379 spin_lock_irq(&input->lock);
380 ddbwritel(0, TS_INPUT_CONTROL(input->nr));
381 ddbwritel(0, DMA_BUFFER_CONTROL(input->nr));
382 input->running = 0;
383 spin_unlock_irq(&input->lock);
384 }
385
386 static void ddb_output_start(struct ddb_output *output)
387 {
388 struct ddb *dev = output->port->dev;
389
390 spin_lock_irq(&output->lock);
391 output->cbuf = 0;
392 output->coff = 0;
393 ddbwritel(0, TS_OUTPUT_CONTROL(output->nr));
394 ddbwritel(2, TS_OUTPUT_CONTROL(output->nr));
395 ddbwritel(0, TS_OUTPUT_CONTROL(output->nr));
396 ddbwritel(0x3c, TS_OUTPUT_CONTROL(output->nr));
397 ddbwritel((1 << 16) |
398 (output->dma_buf_num << 11) |
399 (output->dma_buf_size >> 7),
400 DMA_BUFFER_SIZE(output->nr + 8));
401 ddbwritel(0, DMA_BUFFER_ACK(output->nr + 8));
402
403 ddbwritel(1, DMA_BASE_READ);
404 ddbwritel(3, DMA_BUFFER_CONTROL(output->nr + 8));
405 /* ddbwritel(0xbd, TS_OUTPUT_CONTROL(output->nr)); */
406 ddbwritel(0x1d, TS_OUTPUT_CONTROL(output->nr));
407 output->running = 1;
408 spin_unlock_irq(&output->lock);
409 }
410
411 static void ddb_output_stop(struct ddb_output *output)
412 {
413 struct ddb *dev = output->port->dev;
414
415 spin_lock_irq(&output->lock);
416 ddbwritel(0, TS_OUTPUT_CONTROL(output->nr));
417 ddbwritel(0, DMA_BUFFER_CONTROL(output->nr + 8));
418 output->running = 0;
419 spin_unlock_irq(&output->lock);
420 }
421
422 static u32 ddb_output_free(struct ddb_output *output)
423 {
424 u32 idx, off, stat = output->stat;
425 s32 diff;
426
427 idx = (stat >> 11) & 0x1f;
428 off = (stat & 0x7ff) << 7;
429
430 if (output->cbuf != idx) {
431 if ((((output->cbuf + 1) % output->dma_buf_num) == idx) &&
432 (output->dma_buf_size - output->coff <= 188))
433 return 0;
434 return 188;
435 }
436 diff = off - output->coff;
437 if (diff <= 0 || diff > 188)
438 return 188;
439 return 0;
440 }
441
442 static ssize_t ddb_output_write(struct ddb_output *output,
443 const u8 *buf, size_t count)
444 {
445 struct ddb *dev = output->port->dev;
446 u32 idx, off, stat = output->stat;
447 u32 left = count, len;
448
449 idx = (stat >> 11) & 0x1f;
450 off = (stat & 0x7ff) << 7;
451
452 while (left) {
453 len = output->dma_buf_size - output->coff;
454 if ((((output->cbuf + 1) % output->dma_buf_num) == idx) &&
455 (off == 0)) {
456 if (len <= 188)
457 break;
458 len -= 188;
459 }
460 if (output->cbuf == idx) {
461 if (off > output->coff) {
462 #if 1
463 len = off - output->coff;
464 len -= (len % 188);
465 if (len <= 188)
466
467 #endif
468 break;
469 len -= 188;
470 }
471 }
472 if (len > left)
473 len = left;
474 if (copy_from_user(output->vbuf[output->cbuf] + output->coff,
475 buf, len))
476 return -EIO;
477 left -= len;
478 buf += len;
479 output->coff += len;
480 if (output->coff == output->dma_buf_size) {
481 output->coff = 0;
482 output->cbuf = ((output->cbuf + 1) % output->dma_buf_num);
483 }
484 ddbwritel((output->cbuf << 11) | (output->coff >> 7),
485 DMA_BUFFER_ACK(output->nr + 8));
486 }
487 return count - left;
488 }
489
490 static u32 ddb_input_avail(struct ddb_input *input)
491 {
492 struct ddb *dev = input->port->dev;
493 u32 idx, off, stat = input->stat;
494 u32 ctrl = ddbreadl(DMA_BUFFER_CONTROL(input->nr));
495
496 idx = (stat >> 11) & 0x1f;
497 off = (stat & 0x7ff) << 7;
498
499 if (ctrl & 4) {
500 printk(KERN_ERR "IA %d %d %08x\n", idx, off, ctrl);
501 ddbwritel(input->stat, DMA_BUFFER_ACK(input->nr));
502 return 0;
503 }
504 if (input->cbuf != idx)
505 return 188;
506 return 0;
507 }
508
509 static ssize_t ddb_input_read(struct ddb_input *input, u8 *buf, size_t count)
510 {
511 struct ddb *dev = input->port->dev;
512 u32 left = count;
513 u32 idx, free, stat = input->stat;
514 int ret;
515
516 idx = (stat >> 11) & 0x1f;
517
518 while (left) {
519 if (input->cbuf == idx)
520 return count - left;
521 free = input->dma_buf_size - input->coff;
522 if (free > left)
523 free = left;
524 ret = copy_to_user(buf, input->vbuf[input->cbuf] +
525 input->coff, free);
526 if (ret)
527 return -EFAULT;
528 input->coff += free;
529 if (input->coff == input->dma_buf_size) {
530 input->coff = 0;
531 input->cbuf = (input->cbuf+1) % input->dma_buf_num;
532 }
533 left -= free;
534 ddbwritel((input->cbuf << 11) | (input->coff >> 7),
535 DMA_BUFFER_ACK(input->nr));
536 }
537 return count;
538 }
539
540 /******************************************************************************/
541 /******************************************************************************/
542 /******************************************************************************/
543
544 #if 0
545 static struct ddb_input *fe2input(struct ddb *dev, struct dvb_frontend *fe)
546 {
547 int i;
548
549 for (i = 0; i < dev->info->port_num * 2; i++) {
550 if (dev->input[i].fe == fe)
551 return &dev->input[i];
552 }
553 return NULL;
554 }
555 #endif
556
557 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
558 {
559 struct ddb_input *input = fe->sec_priv;
560 struct ddb_port *port = input->port;
561 int status;
562
563 if (enable) {
564 mutex_lock(&port->i2c_gate_lock);
565 status = input->gate_ctrl(fe, 1);
566 } else {
567 status = input->gate_ctrl(fe, 0);
568 mutex_unlock(&port->i2c_gate_lock);
569 }
570 return status;
571 }
572
573 static int demod_attach_drxk(struct ddb_input *input)
574 {
575 struct i2c_adapter *i2c = &input->port->i2c->adap;
576 struct dvb_frontend *fe;
577 struct drxk_config config;
578
579 memset(&config, 0, sizeof(config));
580 config.microcode_name = "drxk_a3.mc";
581 config.qam_demod_parameter_count = 4;
582 config.adr = 0x29 + (input->nr & 1);
583
584 fe = input->fe = dvb_attach(drxk_attach, &config, i2c);
585 if (!input->fe) {
586 printk(KERN_ERR "No DRXK found!\n");
587 return -ENODEV;
588 }
589 fe->sec_priv = input;
590 input->gate_ctrl = fe->ops.i2c_gate_ctrl;
591 fe->ops.i2c_gate_ctrl = drxk_gate_ctrl;
592 return 0;
593 }
594
595 static int tuner_attach_tda18271(struct ddb_input *input)
596 {
597 struct i2c_adapter *i2c = &input->port->i2c->adap;
598 struct dvb_frontend *fe;
599
600 if (input->fe->ops.i2c_gate_ctrl)
601 input->fe->ops.i2c_gate_ctrl(input->fe, 1);
602 fe = dvb_attach(tda18271c2dd_attach, input->fe, i2c, 0x60);
603 if (!fe) {
604 printk(KERN_ERR "No TDA18271 found!\n");
605 return -ENODEV;
606 }
607 if (input->fe->ops.i2c_gate_ctrl)
608 input->fe->ops.i2c_gate_ctrl(input->fe, 0);
609 return 0;
610 }
611
612 /******************************************************************************/
613 /******************************************************************************/
614 /******************************************************************************/
615
616 static struct stv090x_config stv0900 = {
617 .device = STV0900,
618 .demod_mode = STV090x_DUAL,
619 .clk_mode = STV090x_CLK_EXT,
620
621 .xtal = 27000000,
622 .address = 0x69,
623
624 .ts1_mode = STV090x_TSMODE_SERIAL_PUNCTURED,
625 .ts2_mode = STV090x_TSMODE_SERIAL_PUNCTURED,
626
627 .repeater_level = STV090x_RPTLEVEL_16,
628
629 .adc1_range = STV090x_ADC_1Vpp,
630 .adc2_range = STV090x_ADC_1Vpp,
631
632 .diseqc_envelope_mode = true,
633 };
634
635 static struct stv090x_config stv0900_aa = {
636 .device = STV0900,
637 .demod_mode = STV090x_DUAL,
638 .clk_mode = STV090x_CLK_EXT,
639
640 .xtal = 27000000,
641 .address = 0x68,
642
643 .ts1_mode = STV090x_TSMODE_SERIAL_PUNCTURED,
644 .ts2_mode = STV090x_TSMODE_SERIAL_PUNCTURED,
645
646 .repeater_level = STV090x_RPTLEVEL_16,
647
648 .adc1_range = STV090x_ADC_1Vpp,
649 .adc2_range = STV090x_ADC_1Vpp,
650
651 .diseqc_envelope_mode = true,
652 };
653
654 static struct stv6110x_config stv6110a = {
655 .addr = 0x60,
656 .refclk = 27000000,
657 .clk_div = 1,
658 };
659
660 static struct stv6110x_config stv6110b = {
661 .addr = 0x63,
662 .refclk = 27000000,
663 .clk_div = 1,
664 };
665
666 static int demod_attach_stv0900(struct ddb_input *input, int type)
667 {
668 struct i2c_adapter *i2c = &input->port->i2c->adap;
669 struct stv090x_config *feconf = type ? &stv0900_aa : &stv0900;
670
671 input->fe = dvb_attach(stv090x_attach, feconf, i2c,
672 (input->nr & 1) ? STV090x_DEMODULATOR_1
673 : STV090x_DEMODULATOR_0);
674 if (!input->fe) {
675 printk(KERN_ERR "No STV0900 found!\n");
676 return -ENODEV;
677 }
678 if (!dvb_attach(lnbh24_attach, input->fe, i2c, 0,
679 0, (input->nr & 1) ?
680 (0x09 - type) : (0x0b - type))) {
681 printk(KERN_ERR "No LNBH24 found!\n");
682 return -ENODEV;
683 }
684 return 0;
685 }
686
687 static int tuner_attach_stv6110(struct ddb_input *input, int type)
688 {
689 struct i2c_adapter *i2c = &input->port->i2c->adap;
690 struct stv090x_config *feconf = type ? &stv0900_aa : &stv0900;
691 struct stv6110x_config *tunerconf = (input->nr & 1) ?
692 &stv6110b : &stv6110a;
693 struct stv6110x_devctl *ctl;
694
695 ctl = dvb_attach(stv6110x_attach, input->fe, tunerconf, i2c);
696 if (!ctl) {
697 printk(KERN_ERR "No STV6110X found!\n");
698 return -ENODEV;
699 }
700 printk(KERN_INFO "attach tuner input %d adr %02x\n",
701 input->nr, tunerconf->addr);
702
703 feconf->tuner_init = ctl->tuner_init;
704 feconf->tuner_sleep = ctl->tuner_sleep;
705 feconf->tuner_set_mode = ctl->tuner_set_mode;
706 feconf->tuner_set_frequency = ctl->tuner_set_frequency;
707 feconf->tuner_get_frequency = ctl->tuner_get_frequency;
708 feconf->tuner_set_bandwidth = ctl->tuner_set_bandwidth;
709 feconf->tuner_get_bandwidth = ctl->tuner_get_bandwidth;
710 feconf->tuner_set_bbgain = ctl->tuner_set_bbgain;
711 feconf->tuner_get_bbgain = ctl->tuner_get_bbgain;
712 feconf->tuner_set_refclk = ctl->tuner_set_refclk;
713 feconf->tuner_get_status = ctl->tuner_get_status;
714
715 return 0;
716 }
717
718 static int my_dvb_dmx_ts_card_init(struct dvb_demux *dvbdemux, char *id,
719 int (*start_feed)(struct dvb_demux_feed *),
720 int (*stop_feed)(struct dvb_demux_feed *),
721 void *priv)
722 {
723 dvbdemux->priv = priv;
724
725 dvbdemux->filternum = 256;
726 dvbdemux->feednum = 256;
727 dvbdemux->start_feed = start_feed;
728 dvbdemux->stop_feed = stop_feed;
729 dvbdemux->write_to_decoder = NULL;
730 dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
731 DMX_SECTION_FILTERING |
732 DMX_MEMORY_BASED_FILTERING);
733 return dvb_dmx_init(dvbdemux);
734 }
735
736 static int my_dvb_dmxdev_ts_card_init(struct dmxdev *dmxdev,
737 struct dvb_demux *dvbdemux,
738 struct dmx_frontend *hw_frontend,
739 struct dmx_frontend *mem_frontend,
740 struct dvb_adapter *dvb_adapter)
741 {
742 int ret;
743
744 dmxdev->filternum = 256;
745 dmxdev->demux = &dvbdemux->dmx;
746 dmxdev->capabilities = 0;
747 ret = dvb_dmxdev_init(dmxdev, dvb_adapter);
748 if (ret < 0)
749 return ret;
750
751 hw_frontend->source = DMX_FRONTEND_0;
752 dvbdemux->dmx.add_frontend(&dvbdemux->dmx, hw_frontend);
753 mem_frontend->source = DMX_MEMORY_FE;
754 dvbdemux->dmx.add_frontend(&dvbdemux->dmx, mem_frontend);
755 return dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, hw_frontend);
756 }
757
758 static int start_feed(struct dvb_demux_feed *dvbdmxfeed)
759 {
760 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
761 struct ddb_input *input = dvbdmx->priv;
762
763 if (!input->users)
764 ddb_input_start(input);
765
766 return ++input->users;
767 }
768
769 static int stop_feed(struct dvb_demux_feed *dvbdmxfeed)
770 {
771 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
772 struct ddb_input *input = dvbdmx->priv;
773
774 if (--input->users)
775 return input->users;
776
777 ddb_input_stop(input);
778 return 0;
779 }
780
781
782 static void dvb_input_detach(struct ddb_input *input)
783 {
784 struct dvb_adapter *adap = &input->adap;
785 struct dvb_demux *dvbdemux = &input->demux;
786
787 switch (input->attached) {
788 case 5:
789 if (input->fe2)
790 dvb_unregister_frontend(input->fe2);
791 if (input->fe) {
792 dvb_unregister_frontend(input->fe);
793 dvb_frontend_detach(input->fe);
794 input->fe = NULL;
795 }
796 case 4:
797 dvb_net_release(&input->dvbnet);
798
799 case 3:
800 dvbdemux->dmx.close(&dvbdemux->dmx);
801 dvbdemux->dmx.remove_frontend(&dvbdemux->dmx,
802 &input->hw_frontend);
803 dvbdemux->dmx.remove_frontend(&dvbdemux->dmx,
804 &input->mem_frontend);
805 dvb_dmxdev_release(&input->dmxdev);
806
807 case 2:
808 dvb_dmx_release(&input->demux);
809
810 case 1:
811 dvb_unregister_adapter(adap);
812 }
813 input->attached = 0;
814 }
815
816 static int dvb_input_attach(struct ddb_input *input)
817 {
818 int ret;
819 struct ddb_port *port = input->port;
820 struct dvb_adapter *adap = &input->adap;
821 struct dvb_demux *dvbdemux = &input->demux;
822
823 ret = dvb_register_adapter(adap, "DDBridge", THIS_MODULE,
824 &input->port->dev->pdev->dev,
825 adapter_nr);
826 if (ret < 0) {
827 printk(KERN_ERR "ddbridge: Could not register adapter."
828 "Check if you enabled enough adapters in dvb-core!\n");
829 return ret;
830 }
831 input->attached = 1;
832
833 ret = my_dvb_dmx_ts_card_init(dvbdemux, "SW demux",
834 start_feed,
835 stop_feed, input);
836 if (ret < 0)
837 return ret;
838 input->attached = 2;
839
840 ret = my_dvb_dmxdev_ts_card_init(&input->dmxdev, &input->demux,
841 &input->hw_frontend,
842 &input->mem_frontend, adap);
843 if (ret < 0)
844 return ret;
845 input->attached = 3;
846
847 ret = dvb_net_init(adap, &input->dvbnet, input->dmxdev.demux);
848 if (ret < 0)
849 return ret;
850 input->attached = 4;
851
852 input->fe = 0;
853 switch (port->type) {
854 case DDB_TUNER_DVBS_ST:
855 if (demod_attach_stv0900(input, 0) < 0)
856 return -ENODEV;
857 if (tuner_attach_stv6110(input, 0) < 0)
858 return -ENODEV;
859 if (input->fe) {
860 if (dvb_register_frontend(adap, input->fe) < 0)
861 return -ENODEV;
862 }
863 break;
864 case DDB_TUNER_DVBS_ST_AA:
865 if (demod_attach_stv0900(input, 1) < 0)
866 return -ENODEV;
867 if (tuner_attach_stv6110(input, 1) < 0)
868 return -ENODEV;
869 if (input->fe) {
870 if (dvb_register_frontend(adap, input->fe) < 0)
871 return -ENODEV;
872 }
873 break;
874 case DDB_TUNER_DVBCT_TR:
875 if (demod_attach_drxk(input) < 0)
876 return -ENODEV;
877 if (tuner_attach_tda18271(input) < 0)
878 return -ENODEV;
879 if (input->fe) {
880 if (dvb_register_frontend(adap, input->fe) < 0)
881 return -ENODEV;
882 }
883 if (input->fe2) {
884 if (dvb_register_frontend(adap, input->fe2) < 0)
885 return -ENODEV;
886 input->fe2->tuner_priv = input->fe->tuner_priv;
887 memcpy(&input->fe2->ops.tuner_ops,
888 &input->fe->ops.tuner_ops,
889 sizeof(struct dvb_tuner_ops));
890 }
891 break;
892 }
893 input->attached = 5;
894 return 0;
895 }
896
897 /****************************************************************************/
898 /****************************************************************************/
899
900 static ssize_t ts_write(struct file *file, const char *buf,
901 size_t count, loff_t *ppos)
902 {
903 struct dvb_device *dvbdev = file->private_data;
904 struct ddb_output *output = dvbdev->priv;
905 size_t left = count;
906 int stat;
907
908 while (left) {
909 if (ddb_output_free(output) < 188) {
910 if (file->f_flags & O_NONBLOCK)
911 break;
912 if (wait_event_interruptible(
913 output->wq, ddb_output_free(output) >= 188) < 0)
914 break;
915 }
916 stat = ddb_output_write(output, buf, left);
917 if (stat < 0)
918 break;
919 buf += stat;
920 left -= stat;
921 }
922 return (left == count) ? -EAGAIN : (count - left);
923 }
924
925 static ssize_t ts_read(struct file *file, char *buf,
926 size_t count, loff_t *ppos)
927 {
928 struct dvb_device *dvbdev = file->private_data;
929 struct ddb_output *output = dvbdev->priv;
930 struct ddb_input *input = output->port->input[0];
931 int left, read;
932
933 count -= count % 188;
934 left = count;
935 while (left) {
936 if (ddb_input_avail(input) < 188) {
937 if (file->f_flags & O_NONBLOCK)
938 break;
939 if (wait_event_interruptible(
940 input->wq, ddb_input_avail(input) >= 188) < 0)
941 break;
942 }
943 read = ddb_input_read(input, buf, left);
944 if (read < 0)
945 return read;
946 left -= read;
947 buf += read;
948 }
949 return (left == count) ? -EAGAIN : (count - left);
950 }
951
952 static unsigned int ts_poll(struct file *file, poll_table *wait)
953 {
954 /*
955 struct dvb_device *dvbdev = file->private_data;
956 struct ddb_output *output = dvbdev->priv;
957 struct ddb_input *input = output->port->input[0];
958 */
959 unsigned int mask = 0;
960
961 #if 0
962 if (data_avail_to_read)
963 mask |= POLLIN | POLLRDNORM;
964 if (data_avail_to_write)
965 mask |= POLLOUT | POLLWRNORM;
966
967 poll_wait(file, &read_queue, wait);
968 poll_wait(file, &write_queue, wait);
969 #endif
970 return mask;
971 }
972
973 static const struct file_operations ci_fops = {
974 .owner = THIS_MODULE,
975 .read = ts_read,
976 .write = ts_write,
977 .open = dvb_generic_open,
978 .release = dvb_generic_release,
979 .poll = ts_poll,
980 .mmap = 0,
981 };
982
983 static struct dvb_device dvbdev_ci = {
984 .priv = 0,
985 .readers = -1,
986 .writers = -1,
987 .users = -1,
988 .fops = &ci_fops,
989 };
990
991 /****************************************************************************/
992 /****************************************************************************/
993 /****************************************************************************/
994
995 static void input_tasklet(unsigned long data)
996 {
997 struct ddb_input *input = (struct ddb_input *) data;
998 struct ddb *dev = input->port->dev;
999
1000 spin_lock(&input->lock);
1001 if (!input->running) {
1002 spin_unlock(&input->lock);
1003 return;
1004 }
1005 input->stat = ddbreadl(DMA_BUFFER_CURRENT(input->nr));
1006
1007 if (input->port->class == DDB_PORT_TUNER) {
1008 if (4&ddbreadl(DMA_BUFFER_CONTROL(input->nr)))
1009 printk(KERN_ERR "Overflow input %d\n", input->nr);
1010 while (input->cbuf != ((input->stat >> 11) & 0x1f)
1011 || (4&ddbreadl(DMA_BUFFER_CONTROL(input->nr)))) {
1012 dvb_dmx_swfilter_packets(&input->demux,
1013 input->vbuf[input->cbuf],
1014 input->dma_buf_size / 188);
1015
1016 input->cbuf = (input->cbuf + 1) % input->dma_buf_num;
1017 ddbwritel((input->cbuf << 11),
1018 DMA_BUFFER_ACK(input->nr));
1019 input->stat = ddbreadl(DMA_BUFFER_CURRENT(input->nr));
1020 }
1021 }
1022 if (input->port->class == DDB_PORT_CI)
1023 wake_up(&input->wq);
1024 spin_unlock(&input->lock);
1025 }
1026
1027 static void output_tasklet(unsigned long data)
1028 {
1029 struct ddb_output *output = (struct ddb_output *) data;
1030 struct ddb *dev = output->port->dev;
1031
1032 spin_lock(&output->lock);
1033 if (!output->running) {
1034 spin_unlock(&output->lock);
1035 return;
1036 }
1037 output->stat = ddbreadl(DMA_BUFFER_CURRENT(output->nr + 8));
1038 wake_up(&output->wq);
1039 spin_unlock(&output->lock);
1040 }
1041
1042
1043 struct cxd2099_cfg cxd_cfg = {
1044 .bitrate = 62000,
1045 .adr = 0x40,
1046 .polarity = 1,
1047 .clock_mode = 1,
1048 };
1049
1050 static int ddb_ci_attach(struct ddb_port *port)
1051 {
1052 int ret;
1053
1054 ret = dvb_register_adapter(&port->output->adap,
1055 "DDBridge",
1056 THIS_MODULE,
1057 &port->dev->pdev->dev,
1058 adapter_nr);
1059 if (ret < 0)
1060 return ret;
1061 port->en = cxd2099_attach(&cxd_cfg, port, &port->i2c->adap);
1062 if (!port->en) {
1063 dvb_unregister_adapter(&port->output->adap);
1064 return -ENODEV;
1065 }
1066 ddb_input_start(port->input[0]);
1067 ddb_output_start(port->output);
1068 dvb_ca_en50221_init(&port->output->adap,
1069 port->en, 0, 1);
1070 ret = dvb_register_device(&port->output->adap, &port->output->dev,
1071 &dvbdev_ci, (void *) port->output,
1072 DVB_DEVICE_SEC);
1073 return ret;
1074 }
1075
1076 static int ddb_port_attach(struct ddb_port *port)
1077 {
1078 int ret = 0;
1079
1080 switch (port->class) {
1081 case DDB_PORT_TUNER:
1082 ret = dvb_input_attach(port->input[0]);
1083 if (ret < 0)
1084 break;
1085 ret = dvb_input_attach(port->input[1]);
1086 break;
1087 case DDB_PORT_CI:
1088 ret = ddb_ci_attach(port);
1089 break;
1090 default:
1091 break;
1092 }
1093 if (ret < 0)
1094 printk(KERN_ERR "port_attach on port %d failed\n", port->nr);
1095 return ret;
1096 }
1097
1098 static int ddb_ports_attach(struct ddb *dev)
1099 {
1100 int i, ret = 0;
1101 struct ddb_port *port;
1102
1103 for (i = 0; i < dev->info->port_num; i++) {
1104 port = &dev->port[i];
1105 ret = ddb_port_attach(port);
1106 if (ret < 0)
1107 break;
1108 }
1109 return ret;
1110 }
1111
1112 static void ddb_ports_detach(struct ddb *dev)
1113 {
1114 int i;
1115 struct ddb_port *port;
1116
1117 for (i = 0; i < dev->info->port_num; i++) {
1118 port = &dev->port[i];
1119 switch (port->class) {
1120 case DDB_PORT_TUNER:
1121 dvb_input_detach(port->input[0]);
1122 dvb_input_detach(port->input[1]);
1123 break;
1124 case DDB_PORT_CI:
1125 if (port->output->dev)
1126 dvb_unregister_device(port->output->dev);
1127 if (port->en) {
1128 ddb_input_stop(port->input[0]);
1129 ddb_output_stop(port->output);
1130 dvb_ca_en50221_release(port->en);
1131 kfree(port->en);
1132 port->en = 0;
1133 dvb_unregister_adapter(&port->output->adap);
1134 }
1135 break;
1136 }
1137 }
1138 }
1139
1140 /****************************************************************************/
1141 /****************************************************************************/
1142
1143 static int port_has_ci(struct ddb_port *port)
1144 {
1145 u8 val;
1146 return i2c_read_reg(&port->i2c->adap, 0x40, 0, &val) ? 0 : 1;
1147 }
1148
1149 static int port_has_stv0900(struct ddb_port *port)
1150 {
1151 u8 val;
1152 if (i2c_read_reg16(&port->i2c->adap, 0x69, 0xf100, &val) < 0)
1153 return 0;
1154 return 1;
1155 }
1156
1157 static int port_has_stv0900_aa(struct ddb_port *port)
1158 {
1159 u8 val;
1160 if (i2c_read_reg16(&port->i2c->adap, 0x68, 0xf100, &val) < 0)
1161 return 0;
1162 return 1;
1163 }
1164
1165 static int port_has_drxks(struct ddb_port *port)
1166 {
1167 u8 val;
1168 if (i2c_read(&port->i2c->adap, 0x29, &val) < 0)
1169 return 0;
1170 if (i2c_read(&port->i2c->adap, 0x2a, &val) < 0)
1171 return 0;
1172 return 1;
1173 }
1174
1175 static void ddb_port_probe(struct ddb_port *port)
1176 {
1177 struct ddb *dev = port->dev;
1178 char *modname = "NO MODULE";
1179
1180 port->class = DDB_PORT_NONE;
1181
1182 if (port_has_ci(port)) {
1183 modname = "CI";
1184 port->class = DDB_PORT_CI;
1185 ddbwritel(I2C_SPEED_400, port->i2c->regs + I2C_TIMING);
1186 } else if (port_has_stv0900(port)) {
1187 modname = "DUAL DVB-S2";
1188 port->class = DDB_PORT_TUNER;
1189 port->type = DDB_TUNER_DVBS_ST;
1190 ddbwritel(I2C_SPEED_100, port->i2c->regs + I2C_TIMING);
1191 } else if (port_has_stv0900_aa(port)) {
1192 modname = "DUAL DVB-S2";
1193 port->class = DDB_PORT_TUNER;
1194 port->type = DDB_TUNER_DVBS_ST_AA;
1195 ddbwritel(I2C_SPEED_100, port->i2c->regs + I2C_TIMING);
1196 } else if (port_has_drxks(port)) {
1197 modname = "DUAL DVB-C/T";
1198 port->class = DDB_PORT_TUNER;
1199 port->type = DDB_TUNER_DVBCT_TR;
1200 ddbwritel(I2C_SPEED_400, port->i2c->regs + I2C_TIMING);
1201 }
1202 printk(KERN_INFO "Port %d (TAB %d): %s\n",
1203 port->nr, port->nr+1, modname);
1204 }
1205
1206 static void ddb_input_init(struct ddb_port *port, int nr)
1207 {
1208 struct ddb *dev = port->dev;
1209 struct ddb_input *input = &dev->input[nr];
1210
1211 input->nr = nr;
1212 input->port = port;
1213 input->dma_buf_num = INPUT_DMA_BUFS;
1214 input->dma_buf_size = INPUT_DMA_SIZE;
1215 ddbwritel(0, TS_INPUT_CONTROL(nr));
1216 ddbwritel(2, TS_INPUT_CONTROL(nr));
1217 ddbwritel(0, TS_INPUT_CONTROL(nr));
1218 ddbwritel(0, DMA_BUFFER_ACK(nr));
1219 tasklet_init(&input->tasklet, input_tasklet, (unsigned long) input);
1220 spin_lock_init(&input->lock);
1221 init_waitqueue_head(&input->wq);
1222 }
1223
1224 static void ddb_output_init(struct ddb_port *port, int nr)
1225 {
1226 struct ddb *dev = port->dev;
1227 struct ddb_output *output = &dev->output[nr];
1228 output->nr = nr;
1229 output->port = port;
1230 output->dma_buf_num = OUTPUT_DMA_BUFS;
1231 output->dma_buf_size = OUTPUT_DMA_SIZE;
1232
1233 ddbwritel(0, TS_OUTPUT_CONTROL(nr));
1234 ddbwritel(2, TS_OUTPUT_CONTROL(nr));
1235 ddbwritel(0, TS_OUTPUT_CONTROL(nr));
1236 tasklet_init(&output->tasklet, output_tasklet, (unsigned long) output);
1237 init_waitqueue_head(&output->wq);
1238 }
1239
1240 static void ddb_ports_init(struct ddb *dev)
1241 {
1242 int i;
1243 struct ddb_port *port;
1244
1245 for (i = 0; i < dev->info->port_num; i++) {
1246 port = &dev->port[i];
1247 port->dev = dev;
1248 port->nr = i;
1249 port->i2c = &dev->i2c[i];
1250 port->input[0] = &dev->input[2 * i];
1251 port->input[1] = &dev->input[2 * i + 1];
1252 port->output = &dev->output[i];
1253
1254 mutex_init(&port->i2c_gate_lock);
1255 ddb_port_probe(port);
1256 ddb_input_init(port, 2 * i);
1257 ddb_input_init(port, 2 * i + 1);
1258 ddb_output_init(port, i);
1259 }
1260 }
1261
1262 static void ddb_ports_release(struct ddb *dev)
1263 {
1264 int i;
1265 struct ddb_port *port;
1266
1267 for (i = 0; i < dev->info->port_num; i++) {
1268 port = &dev->port[i];
1269 port->dev = dev;
1270 tasklet_kill(&port->input[0]->tasklet);
1271 tasklet_kill(&port->input[1]->tasklet);
1272 tasklet_kill(&port->output->tasklet);
1273 }
1274 }
1275
1276 /****************************************************************************/
1277 /****************************************************************************/
1278 /****************************************************************************/
1279
1280 static void irq_handle_i2c(struct ddb *dev, int n)
1281 {
1282 struct ddb_i2c *i2c = &dev->i2c[n];
1283
1284 i2c->done = 1;
1285 wake_up(&i2c->wq);
1286 }
1287
1288 static irqreturn_t irq_handler(int irq, void *dev_id)
1289 {
1290 struct ddb *dev = (struct ddb *) dev_id;
1291 u32 s = ddbreadl(INTERRUPT_STATUS);
1292
1293 if (!s)
1294 return IRQ_NONE;
1295
1296 do {
1297 ddbwritel(s, INTERRUPT_ACK);
1298
1299 if (s & 0x00000001)
1300 irq_handle_i2c(dev, 0);
1301 if (s & 0x00000002)
1302 irq_handle_i2c(dev, 1);
1303 if (s & 0x00000004)
1304 irq_handle_i2c(dev, 2);
1305 if (s & 0x00000008)
1306 irq_handle_i2c(dev, 3);
1307
1308 if (s & 0x00000100)
1309 tasklet_schedule(&dev->input[0].tasklet);
1310 if (s & 0x00000200)
1311 tasklet_schedule(&dev->input[1].tasklet);
1312 if (s & 0x00000400)
1313 tasklet_schedule(&dev->input[2].tasklet);
1314 if (s & 0x00000800)
1315 tasklet_schedule(&dev->input[3].tasklet);
1316 if (s & 0x00001000)
1317 tasklet_schedule(&dev->input[4].tasklet);
1318 if (s & 0x00002000)
1319 tasklet_schedule(&dev->input[5].tasklet);
1320 if (s & 0x00004000)
1321 tasklet_schedule(&dev->input[6].tasklet);
1322 if (s & 0x00008000)
1323 tasklet_schedule(&dev->input[7].tasklet);
1324
1325 if (s & 0x00010000)
1326 tasklet_schedule(&dev->output[0].tasklet);
1327 if (s & 0x00020000)
1328 tasklet_schedule(&dev->output[1].tasklet);
1329 if (s & 0x00040000)
1330 tasklet_schedule(&dev->output[2].tasklet);
1331 if (s & 0x00080000)
1332 tasklet_schedule(&dev->output[3].tasklet);
1333
1334 /* if (s & 0x000f0000) printk(KERN_DEBUG "%08x\n", istat); */
1335 } while ((s = ddbreadl(INTERRUPT_STATUS)));
1336
1337 return IRQ_HANDLED;
1338 }
1339
1340 /******************************************************************************/
1341 /******************************************************************************/
1342 /******************************************************************************/
1343
1344 static int flashio(struct ddb *dev, u8 *wbuf, u32 wlen, u8 *rbuf, u32 rlen)
1345 {
1346 u32 data, shift;
1347
1348 if (wlen > 4)
1349 ddbwritel(1, SPI_CONTROL);
1350 while (wlen > 4) {
1351 /* FIXME: check for big-endian */
1352 data = swab32(*(u32 *)wbuf);
1353 wbuf += 4;
1354 wlen -= 4;
1355 ddbwritel(data, SPI_DATA);
1356 while (ddbreadl(SPI_CONTROL) & 0x0004)
1357 ;
1358 }
1359
1360 if (rlen)
1361 ddbwritel(0x0001 | ((wlen << (8 + 3)) & 0x1f00), SPI_CONTROL);
1362 else
1363 ddbwritel(0x0003 | ((wlen << (8 + 3)) & 0x1f00), SPI_CONTROL);
1364
1365 data = 0;
1366 shift = ((4 - wlen) * 8);
1367 while (wlen) {
1368 data <<= 8;
1369 data |= *wbuf;
1370 wlen--;
1371 wbuf++;
1372 }
1373 if (shift)
1374 data <<= shift;
1375 ddbwritel(data, SPI_DATA);
1376 while (ddbreadl(SPI_CONTROL) & 0x0004)
1377 ;
1378
1379 if (!rlen) {
1380 ddbwritel(0, SPI_CONTROL);
1381 return 0;
1382 }
1383 if (rlen > 4)
1384 ddbwritel(1, SPI_CONTROL);
1385
1386 while (rlen > 4) {
1387 ddbwritel(0xffffffff, SPI_DATA);
1388 while (ddbreadl(SPI_CONTROL) & 0x0004)
1389 ;
1390 data = ddbreadl(SPI_DATA);
1391 *(u32 *) rbuf = swab32(data);
1392 rbuf += 4;
1393 rlen -= 4;
1394 }
1395 ddbwritel(0x0003 | ((rlen << (8 + 3)) & 0x1F00), SPI_CONTROL);
1396 ddbwritel(0xffffffff, SPI_DATA);
1397 while (ddbreadl(SPI_CONTROL) & 0x0004)
1398 ;
1399
1400 data = ddbreadl(SPI_DATA);
1401 ddbwritel(0, SPI_CONTROL);
1402
1403 if (rlen < 4)
1404 data <<= ((4 - rlen) * 8);
1405
1406 while (rlen > 0) {
1407 *rbuf = ((data >> 24) & 0xff);
1408 data <<= 8;
1409 rbuf++;
1410 rlen--;
1411 }
1412 return 0;
1413 }
1414
1415 #define DDB_MAGIC 'd'
1416
1417 struct ddb_flashio {
1418 __u8 *write_buf;
1419 __u32 write_len;
1420 __u8 *read_buf;
1421 __u32 read_len;
1422 };
1423
1424 #define IOCTL_DDB_FLASHIO _IOWR(DDB_MAGIC, 0x00, struct ddb_flashio)
1425
1426 #define DDB_NAME "ddbridge"
1427
1428 static u32 ddb_num;
1429 static struct ddb *ddbs[32];
1430 static struct class *ddb_class;
1431 static int ddb_major;
1432
1433 static int ddb_open(struct inode *inode, struct file *file)
1434 {
1435 struct ddb *dev = ddbs[iminor(inode)];
1436
1437 file->private_data = dev;
1438 return 0;
1439 }
1440
1441 static long ddb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
1442 {
1443 struct ddb *dev = file->private_data;
1444 void *parg = (void *)arg;
1445 int res;
1446
1447 switch (cmd) {
1448 case IOCTL_DDB_FLASHIO:
1449 {
1450 struct ddb_flashio fio;
1451 u8 *rbuf, *wbuf;
1452
1453 if (copy_from_user(&fio, parg, sizeof(fio)))
1454 return -EFAULT;
1455
1456 if (fio.write_len > 1028 || fio.read_len > 1028)
1457 return -EINVAL;
1458 if (fio.write_len + fio.read_len > 1028)
1459 return -EINVAL;
1460
1461 wbuf = &dev->iobuf[0];
1462 rbuf = wbuf + fio.write_len;
1463
1464 if (copy_from_user(wbuf, fio.write_buf, fio.write_len))
1465 return -EFAULT;
1466 res = flashio(dev, wbuf, fio.write_len, rbuf, fio.read_len);
1467 if (res)
1468 return res;
1469 if (copy_to_user(fio.read_buf, rbuf, fio.read_len))
1470 return -EFAULT;
1471 break;
1472 }
1473 default:
1474 return -ENOTTY;
1475 }
1476 return 0;
1477 }
1478
1479 static const struct file_operations ddb_fops = {
1480 .unlocked_ioctl = ddb_ioctl,
1481 .open = ddb_open,
1482 };
1483
1484 static char *ddb_devnode(struct device *device, umode_t *mode)
1485 {
1486 struct ddb *dev = dev_get_drvdata(device);
1487
1488 return kasprintf(GFP_KERNEL, "ddbridge/card%d", dev->nr);
1489 }
1490
1491 static int ddb_class_create(void)
1492 {
1493 ddb_major = register_chrdev(0, DDB_NAME, &ddb_fops);
1494 if (ddb_major < 0)
1495 return ddb_major;
1496
1497 ddb_class = class_create(THIS_MODULE, DDB_NAME);
1498 if (IS_ERR(ddb_class)) {
1499 unregister_chrdev(ddb_major, DDB_NAME);
1500 return PTR_ERR(ddb_class);
1501 }
1502 ddb_class->devnode = ddb_devnode;
1503 return 0;
1504 }
1505
1506 static void ddb_class_destroy(void)
1507 {
1508 class_destroy(ddb_class);
1509 unregister_chrdev(ddb_major, DDB_NAME);
1510 }
1511
1512 static int ddb_device_create(struct ddb *dev)
1513 {
1514 dev->nr = ddb_num++;
1515 dev->ddb_dev = device_create(ddb_class, NULL,
1516 MKDEV(ddb_major, dev->nr),
1517 dev, "ddbridge%d", dev->nr);
1518 ddbs[dev->nr] = dev;
1519 if (IS_ERR(dev->ddb_dev))
1520 return -1;
1521 return 0;
1522 }
1523
1524 static void ddb_device_destroy(struct ddb *dev)
1525 {
1526 ddb_num--;
1527 if (IS_ERR(dev->ddb_dev))
1528 return;
1529 device_destroy(ddb_class, MKDEV(ddb_major, 0));
1530 }
1531
1532
1533 /****************************************************************************/
1534 /****************************************************************************/
1535 /****************************************************************************/
1536
1537 static void ddb_unmap(struct ddb *dev)
1538 {
1539 if (dev->regs)
1540 iounmap(dev->regs);
1541 vfree(dev);
1542 }
1543
1544
1545 static void __devexit ddb_remove(struct pci_dev *pdev)
1546 {
1547 struct ddb *dev = (struct ddb *) pci_get_drvdata(pdev);
1548
1549 ddb_ports_detach(dev);
1550 ddb_i2c_release(dev);
1551
1552 ddbwritel(0, INTERRUPT_ENABLE);
1553 free_irq(dev->pdev->irq, dev);
1554 #ifdef CONFIG_PCI_MSI
1555 if (dev->msi)
1556 pci_disable_msi(dev->pdev);
1557 #endif
1558 ddb_ports_release(dev);
1559 ddb_buffers_free(dev);
1560 ddb_device_destroy(dev);
1561
1562 ddb_unmap(dev);
1563 pci_set_drvdata(pdev, 0);
1564 pci_disable_device(pdev);
1565 }
1566
1567
1568 static int __devinit ddb_probe(struct pci_dev *pdev,
1569 const struct pci_device_id *id)
1570 {
1571 struct ddb *dev;
1572 int stat = 0;
1573 int irq_flag = IRQF_SHARED;
1574
1575 if (pci_enable_device(pdev) < 0)
1576 return -ENODEV;
1577
1578 dev = vmalloc(sizeof(struct ddb));
1579 if (dev == NULL)
1580 return -ENOMEM;
1581 memset(dev, 0, sizeof(struct ddb));
1582
1583 dev->pdev = pdev;
1584 pci_set_drvdata(pdev, dev);
1585 dev->info = (struct ddb_info *) id->driver_data;
1586 printk(KERN_INFO "DDBridge driver detected: %s\n", dev->info->name);
1587
1588 dev->regs = ioremap(pci_resource_start(dev->pdev, 0),
1589 pci_resource_len(dev->pdev, 0));
1590 if (!dev->regs) {
1591 stat = -ENOMEM;
1592 goto fail;
1593 }
1594 printk(KERN_INFO "HW %08x FW %08x\n", ddbreadl(0), ddbreadl(4));
1595
1596 #ifdef CONFIG_PCI_MSI
1597 if (pci_msi_enabled())
1598 stat = pci_enable_msi(dev->pdev);
1599 if (stat) {
1600 printk(KERN_INFO ": MSI not available.\n");
1601 } else {
1602 irq_flag = 0;
1603 dev->msi = 1;
1604 }
1605 #endif
1606 stat = request_irq(dev->pdev->irq, irq_handler,
1607 irq_flag, "DDBridge", (void *) dev);
1608 if (stat < 0)
1609 goto fail1;
1610 ddbwritel(0, DMA_BASE_WRITE);
1611 ddbwritel(0, DMA_BASE_READ);
1612 ddbwritel(0xffffffff, INTERRUPT_ACK);
1613 ddbwritel(0xfff0f, INTERRUPT_ENABLE);
1614 ddbwritel(0, MSI1_ENABLE);
1615
1616 if (ddb_i2c_init(dev) < 0)
1617 goto fail1;
1618 ddb_ports_init(dev);
1619 if (ddb_buffers_alloc(dev) < 0) {
1620 printk(KERN_INFO ": Could not allocate buffer memory\n");
1621 goto fail2;
1622 }
1623 if (ddb_ports_attach(dev) < 0)
1624 goto fail3;
1625 ddb_device_create(dev);
1626 return 0;
1627
1628 fail3:
1629 ddb_ports_detach(dev);
1630 printk(KERN_ERR "fail3\n");
1631 ddb_ports_release(dev);
1632 fail2:
1633 printk(KERN_ERR "fail2\n");
1634 ddb_buffers_free(dev);
1635 fail1:
1636 printk(KERN_ERR "fail1\n");
1637 if (dev->msi)
1638 pci_disable_msi(dev->pdev);
1639 free_irq(dev->pdev->irq, dev);
1640 fail:
1641 printk(KERN_ERR "fail\n");
1642 ddb_unmap(dev);
1643 pci_set_drvdata(pdev, 0);
1644 pci_disable_device(pdev);
1645 return -1;
1646 }
1647
1648 /******************************************************************************/
1649 /******************************************************************************/
1650 /******************************************************************************/
1651
1652 static struct ddb_info ddb_none = {
1653 .type = DDB_NONE,
1654 .name = "Digital Devices PCIe bridge",
1655 };
1656
1657 static struct ddb_info ddb_octopus = {
1658 .type = DDB_OCTOPUS,
1659 .name = "Digital Devices Octopus DVB adapter",
1660 .port_num = 4,
1661 };
1662
1663 static struct ddb_info ddb_octopus_le = {
1664 .type = DDB_OCTOPUS,
1665 .name = "Digital Devices Octopus LE DVB adapter",
1666 .port_num = 2,
1667 };
1668
1669 static struct ddb_info ddb_v6 = {
1670 .type = DDB_OCTOPUS,
1671 .name = "Digital Devices Cine S2 V6 DVB adapter",
1672 .port_num = 3,
1673 };
1674
1675 #define DDVID 0xdd01 /* Digital Devices Vendor ID */
1676
1677 #define DDB_ID(_vend, _dev, _subvend, _subdev, _driverdata) { \
1678 .vendor = _vend, .device = _dev, \
1679 .subvendor = _subvend, .subdevice = _subdev, \
1680 .driver_data = (unsigned long)&_driverdata }
1681
1682 static const struct pci_device_id ddb_id_tbl[] __devinitdata = {
1683 DDB_ID(DDVID, 0x0002, DDVID, 0x0001, ddb_octopus),
1684 DDB_ID(DDVID, 0x0003, DDVID, 0x0001, ddb_octopus),
1685 DDB_ID(DDVID, 0x0003, DDVID, 0x0002, ddb_octopus_le),
1686 DDB_ID(DDVID, 0x0003, DDVID, 0x0010, ddb_octopus),
1687 DDB_ID(DDVID, 0x0003, DDVID, 0x0020, ddb_v6),
1688 /* in case sub-ids got deleted in flash */
1689 DDB_ID(DDVID, 0x0003, PCI_ANY_ID, PCI_ANY_ID, ddb_none),
1690 {0}
1691 };
1692 MODULE_DEVICE_TABLE(pci, ddb_id_tbl);
1693
1694
1695 static struct pci_driver ddb_pci_driver = {
1696 .name = "DDBridge",
1697 .id_table = ddb_id_tbl,
1698 .probe = ddb_probe,
1699 .remove = __devexit_p(ddb_remove),
1700 };
1701
1702 static __init int module_init_ddbridge(void)
1703 {
1704 int ret;
1705
1706 printk(KERN_INFO "Digital Devices PCIE bridge driver, "
1707 "Copyright (C) 2010-11 Digital Devices GmbH\n");
1708
1709 ret = ddb_class_create();
1710 if (ret < 0)
1711 return ret;
1712 ret = pci_register_driver(&ddb_pci_driver);
1713 if (ret < 0)
1714 ddb_class_destroy();
1715 return ret;
1716 }
1717
1718 static __exit void module_exit_ddbridge(void)
1719 {
1720 pci_unregister_driver(&ddb_pci_driver);
1721 ddb_class_destroy();
1722 }
1723
1724 module_init(module_init_ddbridge);
1725 module_exit(module_exit_ddbridge);
1726
1727 MODULE_DESCRIPTION("Digital Devices PCIe Bridge");
1728 MODULE_AUTHOR("Ralph Metzler");
1729 MODULE_LICENSE("GPL");
1730 MODULE_VERSION("0.5");
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