3 * device driver for Conexant 2388x based TV cards
6 * (c) 2003 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
8 * (c) 2005-2006 Mauro Carvalho Chehab <mchehab@infradead.org>
10 * - video_ioctl2 conversion
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 #include <linux/init.h>
29 #include <linux/list.h>
30 #include <linux/module.h>
31 #include <linux/kernel.h>
32 #include <linux/slab.h>
33 #include <linux/kmod.h>
34 #include <linux/sound.h>
35 #include <linux/interrupt.h>
36 #include <linux/pci.h>
37 #include <linux/delay.h>
38 #include <linux/videodev2.h>
39 #include <linux/mutex.h>
42 #include <media/v4l2-common.h>
43 #include <media/v4l2-ioctl.h>
45 MODULE_DESCRIPTION("v4l2 driver module for cx2388x based TV cards");
46 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
47 MODULE_LICENSE("GPL");
49 /* ------------------------------------------------------------------ */
51 static unsigned int core_debug
;
52 module_param(core_debug
,int,0644);
53 MODULE_PARM_DESC(core_debug
,"enable debug messages [core]");
55 static unsigned int nicam
;
56 module_param(nicam
,int,0644);
57 MODULE_PARM_DESC(nicam
,"tv audio is nicam");
59 static unsigned int nocomb
;
60 module_param(nocomb
,int,0644);
61 MODULE_PARM_DESC(nocomb
,"disable comb filter");
63 #define dprintk(level,fmt, arg...) if (core_debug >= level) \
64 printk(KERN_DEBUG "%s: " fmt, core->name , ## arg)
66 static unsigned int cx88_devcount
;
67 static LIST_HEAD(cx88_devlist
);
68 static DEFINE_MUTEX(devlist
);
70 #define NO_SYNC_LINE (-1U)
72 /* @lpi: lines per IRQ, or 0 to not generate irqs. Note: IRQ to be
73 generated _after_ lpi lines are transferred. */
74 static __le32
* cx88_risc_field(__le32
*rp
, struct scatterlist
*sglist
,
75 unsigned int offset
, u32 sync_line
,
76 unsigned int bpl
, unsigned int padding
,
77 unsigned int lines
, unsigned int lpi
)
79 struct scatterlist
*sg
;
80 unsigned int line
,todo
,sol
;
82 /* sync instruction */
83 if (sync_line
!= NO_SYNC_LINE
)
84 *(rp
++) = cpu_to_le32(RISC_RESYNC
| sync_line
);
88 for (line
= 0; line
< lines
; line
++) {
89 while (offset
&& offset
>= sg_dma_len(sg
)) {
90 offset
-= sg_dma_len(sg
);
93 if (lpi
&& line
>0 && !(line
% lpi
))
94 sol
= RISC_SOL
| RISC_IRQ1
| RISC_CNT_INC
;
97 if (bpl
<= sg_dma_len(sg
)-offset
) {
98 /* fits into current chunk */
99 *(rp
++)=cpu_to_le32(RISC_WRITE
|sol
|RISC_EOL
|bpl
);
100 *(rp
++)=cpu_to_le32(sg_dma_address(sg
)+offset
);
103 /* scanline needs to be split */
105 *(rp
++)=cpu_to_le32(RISC_WRITE
|sol
|
106 (sg_dma_len(sg
)-offset
));
107 *(rp
++)=cpu_to_le32(sg_dma_address(sg
)+offset
);
108 todo
-= (sg_dma_len(sg
)-offset
);
111 while (todo
> sg_dma_len(sg
)) {
112 *(rp
++)=cpu_to_le32(RISC_WRITE
|
114 *(rp
++)=cpu_to_le32(sg_dma_address(sg
));
115 todo
-= sg_dma_len(sg
);
118 *(rp
++)=cpu_to_le32(RISC_WRITE
|RISC_EOL
|todo
);
119 *(rp
++)=cpu_to_le32(sg_dma_address(sg
));
128 int cx88_risc_buffer(struct pci_dev
*pci
, struct btcx_riscmem
*risc
,
129 struct scatterlist
*sglist
,
130 unsigned int top_offset
, unsigned int bottom_offset
,
131 unsigned int bpl
, unsigned int padding
, unsigned int lines
)
133 u32 instructions
,fields
;
138 if (UNSET
!= top_offset
)
140 if (UNSET
!= bottom_offset
)
143 /* estimate risc mem: worst case is one write per page border +
144 one write per scan line + syncs + jump (all 2 dwords). Padding
145 can cause next bpl to start close to a page border. First DMA
146 region may be smaller than PAGE_SIZE */
147 instructions
= fields
* (1 + ((bpl
+ padding
) * lines
) / PAGE_SIZE
+ lines
);
149 if ((rc
= btcx_riscmem_alloc(pci
,risc
,instructions
*8)) < 0)
152 /* write risc instructions */
154 if (UNSET
!= top_offset
)
155 rp
= cx88_risc_field(rp
, sglist
, top_offset
, 0,
156 bpl
, padding
, lines
, 0);
157 if (UNSET
!= bottom_offset
)
158 rp
= cx88_risc_field(rp
, sglist
, bottom_offset
, 0x200,
159 bpl
, padding
, lines
, 0);
161 /* save pointer to jmp instruction address */
163 BUG_ON((risc
->jmp
- risc
->cpu
+ 2) * sizeof (*risc
->cpu
) > risc
->size
);
167 int cx88_risc_databuffer(struct pci_dev
*pci
, struct btcx_riscmem
*risc
,
168 struct scatterlist
*sglist
, unsigned int bpl
,
169 unsigned int lines
, unsigned int lpi
)
175 /* estimate risc mem: worst case is one write per page border +
176 one write per scan line + syncs + jump (all 2 dwords). Here
177 there is no padding and no sync. First DMA region may be smaller
179 instructions
= 1 + (bpl
* lines
) / PAGE_SIZE
+ lines
;
181 if ((rc
= btcx_riscmem_alloc(pci
,risc
,instructions
*8)) < 0)
184 /* write risc instructions */
186 rp
= cx88_risc_field(rp
, sglist
, 0, NO_SYNC_LINE
, bpl
, 0, lines
, lpi
);
188 /* save pointer to jmp instruction address */
190 BUG_ON((risc
->jmp
- risc
->cpu
+ 2) * sizeof (*risc
->cpu
) > risc
->size
);
194 int cx88_risc_stopper(struct pci_dev
*pci
, struct btcx_riscmem
*risc
,
195 u32 reg
, u32 mask
, u32 value
)
200 if ((rc
= btcx_riscmem_alloc(pci
, risc
, 4*16)) < 0)
203 /* write risc instructions */
205 *(rp
++) = cpu_to_le32(RISC_WRITECR
| RISC_IRQ2
| RISC_IMM
);
206 *(rp
++) = cpu_to_le32(reg
);
207 *(rp
++) = cpu_to_le32(value
);
208 *(rp
++) = cpu_to_le32(mask
);
209 *(rp
++) = cpu_to_le32(RISC_JUMP
);
210 *(rp
++) = cpu_to_le32(risc
->dma
);
215 cx88_free_buffer(struct videobuf_queue
*q
, struct cx88_buffer
*buf
)
217 struct videobuf_dmabuf
*dma
=videobuf_to_dma(&buf
->vb
);
219 BUG_ON(in_interrupt());
220 videobuf_waiton(&buf
->vb
,0,0);
221 videobuf_dma_unmap(q
, dma
);
222 videobuf_dma_free(dma
);
223 btcx_riscmem_free(to_pci_dev(q
->dev
), &buf
->risc
);
224 buf
->vb
.state
= VIDEOBUF_NEEDS_INIT
;
227 /* ------------------------------------------------------------------ */
228 /* our SRAM memory layout */
230 /* we are going to put all thr risc programs into host memory, so we
231 * can use the whole SDRAM for the DMA fifos. To simplify things, we
232 * use a static memory layout. That surely will waste memory in case
233 * we don't use all DMA channels at the same time (which will be the
234 * case most of the time). But that still gives us enougth FIFO space
235 * to be able to deal with insane long pci latencies ...
237 * FIFO space allocations:
238 * channel 21 (y video) - 10.0k
239 * channel 22 (u video) - 2.0k
240 * channel 23 (v video) - 2.0k
241 * channel 24 (vbi) - 4.0k
242 * channels 25+26 (audio) - 4.0k
243 * channel 28 (mpeg) - 4.0k
246 * Every channel has 160 bytes control data (64 bytes instruction
247 * queue and 6 CDT entries), which is close to 2k total.
250 * 0x0000 - 0x03ff CMDs / reserved
251 * 0x0400 - 0x0bff instruction queues + CDs
255 struct sram_channel cx88_sram_channels
[] = {
257 .name
= "video y / packed",
258 .cmds_start
= 0x180040,
259 .ctrl_start
= 0x180400,
260 .cdt
= 0x180400 + 64,
261 .fifo_start
= 0x180c00,
262 .fifo_size
= 0x002800,
263 .ptr1_reg
= MO_DMA21_PTR1
,
264 .ptr2_reg
= MO_DMA21_PTR2
,
265 .cnt1_reg
= MO_DMA21_CNT1
,
266 .cnt2_reg
= MO_DMA21_CNT2
,
270 .cmds_start
= 0x180080,
271 .ctrl_start
= 0x1804a0,
272 .cdt
= 0x1804a0 + 64,
273 .fifo_start
= 0x183400,
274 .fifo_size
= 0x000800,
275 .ptr1_reg
= MO_DMA22_PTR1
,
276 .ptr2_reg
= MO_DMA22_PTR2
,
277 .cnt1_reg
= MO_DMA22_CNT1
,
278 .cnt2_reg
= MO_DMA22_CNT2
,
282 .cmds_start
= 0x1800c0,
283 .ctrl_start
= 0x180540,
284 .cdt
= 0x180540 + 64,
285 .fifo_start
= 0x183c00,
286 .fifo_size
= 0x000800,
287 .ptr1_reg
= MO_DMA23_PTR1
,
288 .ptr2_reg
= MO_DMA23_PTR2
,
289 .cnt1_reg
= MO_DMA23_CNT1
,
290 .cnt2_reg
= MO_DMA23_CNT2
,
294 .cmds_start
= 0x180100,
295 .ctrl_start
= 0x1805e0,
296 .cdt
= 0x1805e0 + 64,
297 .fifo_start
= 0x184400,
298 .fifo_size
= 0x001000,
299 .ptr1_reg
= MO_DMA24_PTR1
,
300 .ptr2_reg
= MO_DMA24_PTR2
,
301 .cnt1_reg
= MO_DMA24_CNT1
,
302 .cnt2_reg
= MO_DMA24_CNT2
,
305 .name
= "audio from",
306 .cmds_start
= 0x180140,
307 .ctrl_start
= 0x180680,
308 .cdt
= 0x180680 + 64,
309 .fifo_start
= 0x185400,
310 .fifo_size
= 0x001000,
311 .ptr1_reg
= MO_DMA25_PTR1
,
312 .ptr2_reg
= MO_DMA25_PTR2
,
313 .cnt1_reg
= MO_DMA25_CNT1
,
314 .cnt2_reg
= MO_DMA25_CNT2
,
318 .cmds_start
= 0x180180,
319 .ctrl_start
= 0x180720,
320 .cdt
= 0x180680 + 64, /* same as audio IN */
321 .fifo_start
= 0x185400, /* same as audio IN */
322 .fifo_size
= 0x001000, /* same as audio IN */
323 .ptr1_reg
= MO_DMA26_PTR1
,
324 .ptr2_reg
= MO_DMA26_PTR2
,
325 .cnt1_reg
= MO_DMA26_CNT1
,
326 .cnt2_reg
= MO_DMA26_CNT2
,
330 .cmds_start
= 0x180200,
331 .ctrl_start
= 0x1807C0,
332 .cdt
= 0x1807C0 + 64,
333 .fifo_start
= 0x186400,
334 .fifo_size
= 0x001000,
335 .ptr1_reg
= MO_DMA28_PTR1
,
336 .ptr2_reg
= MO_DMA28_PTR2
,
337 .cnt1_reg
= MO_DMA28_CNT1
,
338 .cnt2_reg
= MO_DMA28_CNT2
,
342 int cx88_sram_channel_setup(struct cx88_core
*core
,
343 struct sram_channel
*ch
,
344 unsigned int bpl
, u32 risc
)
346 unsigned int i
,lines
;
349 bpl
= (bpl
+ 7) & ~7; /* alignment */
351 lines
= ch
->fifo_size
/ bpl
;
357 for (i
= 0; i
< lines
; i
++)
358 cx_write(cdt
+ 16*i
, ch
->fifo_start
+ bpl
*i
);
361 cx_write(ch
->cmds_start
+ 0, risc
);
362 cx_write(ch
->cmds_start
+ 4, cdt
);
363 cx_write(ch
->cmds_start
+ 8, (lines
*16) >> 3);
364 cx_write(ch
->cmds_start
+ 12, ch
->ctrl_start
);
365 cx_write(ch
->cmds_start
+ 16, 64 >> 2);
366 for (i
= 20; i
< 64; i
+= 4)
367 cx_write(ch
->cmds_start
+ i
, 0);
370 cx_write(ch
->ptr1_reg
, ch
->fifo_start
);
371 cx_write(ch
->ptr2_reg
, cdt
);
372 cx_write(ch
->cnt1_reg
, (bpl
>> 3) -1);
373 cx_write(ch
->cnt2_reg
, (lines
*16) >> 3);
375 dprintk(2,"sram setup %s: bpl=%d lines=%d\n", ch
->name
, bpl
, lines
);
379 /* ------------------------------------------------------------------ */
380 /* debug helper code */
382 static int cx88_risc_decode(u32 risc
)
384 static char *instr
[16] = {
385 [ RISC_SYNC
>> 28 ] = "sync",
386 [ RISC_WRITE
>> 28 ] = "write",
387 [ RISC_WRITEC
>> 28 ] = "writec",
388 [ RISC_READ
>> 28 ] = "read",
389 [ RISC_READC
>> 28 ] = "readc",
390 [ RISC_JUMP
>> 28 ] = "jump",
391 [ RISC_SKIP
>> 28 ] = "skip",
392 [ RISC_WRITERM
>> 28 ] = "writerm",
393 [ RISC_WRITECM
>> 28 ] = "writecm",
394 [ RISC_WRITECR
>> 28 ] = "writecr",
396 static int incr
[16] = {
397 [ RISC_WRITE
>> 28 ] = 2,
398 [ RISC_JUMP
>> 28 ] = 2,
399 [ RISC_WRITERM
>> 28 ] = 3,
400 [ RISC_WRITECM
>> 28 ] = 3,
401 [ RISC_WRITECR
>> 28 ] = 4,
403 static char *bits
[] = {
404 "12", "13", "14", "resync",
405 "cnt0", "cnt1", "18", "19",
406 "20", "21", "22", "23",
407 "irq1", "irq2", "eol", "sol",
411 printk("0x%08x [ %s", risc
,
412 instr
[risc
>> 28] ? instr
[risc
>> 28] : "INVALID");
413 for (i
= ARRAY_SIZE(bits
)-1; i
>= 0; i
--)
414 if (risc
& (1 << (i
+ 12)))
415 printk(" %s",bits
[i
]);
416 printk(" count=%d ]\n", risc
& 0xfff);
417 return incr
[risc
>> 28] ? incr
[risc
>> 28] : 1;
421 void cx88_sram_channel_dump(struct cx88_core
*core
,
422 struct sram_channel
*ch
)
424 static char *name
[] = {
440 printk("%s: %s - dma channel status dump\n",
441 core
->name
,ch
->name
);
442 for (i
= 0; i
< ARRAY_SIZE(name
); i
++)
443 printk("%s: cmds: %-12s: 0x%08x\n",
445 cx_read(ch
->cmds_start
+ 4*i
));
446 for (n
= 1, i
= 0; i
< 4; i
++) {
447 risc
= cx_read(ch
->cmds_start
+ 4 * (i
+11));
448 printk("%s: risc%d: ", core
->name
, i
);
450 printk("0x%08x [ arg #%d ]\n", risc
, n
);
452 n
= cx88_risc_decode(risc
);
454 for (i
= 0; i
< 16; i
+= n
) {
455 risc
= cx_read(ch
->ctrl_start
+ 4 * i
);
456 printk("%s: iq %x: ", core
->name
, i
);
457 n
= cx88_risc_decode(risc
);
458 for (j
= 1; j
< n
; j
++) {
459 risc
= cx_read(ch
->ctrl_start
+ 4 * (i
+j
));
460 printk("%s: iq %x: 0x%08x [ arg #%d ]\n",
461 core
->name
, i
+j
, risc
, j
);
465 printk("%s: fifo: 0x%08x -> 0x%x\n",
466 core
->name
, ch
->fifo_start
, ch
->fifo_start
+ch
->fifo_size
);
467 printk("%s: ctrl: 0x%08x -> 0x%x\n",
468 core
->name
, ch
->ctrl_start
, ch
->ctrl_start
+6*16);
469 printk("%s: ptr1_reg: 0x%08x\n",
470 core
->name
,cx_read(ch
->ptr1_reg
));
471 printk("%s: ptr2_reg: 0x%08x\n",
472 core
->name
,cx_read(ch
->ptr2_reg
));
473 printk("%s: cnt1_reg: 0x%08x\n",
474 core
->name
,cx_read(ch
->cnt1_reg
));
475 printk("%s: cnt2_reg: 0x%08x\n",
476 core
->name
,cx_read(ch
->cnt2_reg
));
479 static char *cx88_pci_irqs
[32] = {
480 "vid", "aud", "ts", "vip", "hst", "5", "6", "tm1",
481 "src_dma", "dst_dma", "risc_rd_err", "risc_wr_err",
482 "brdg_err", "src_dma_err", "dst_dma_err", "ipb_dma_err",
483 "i2c", "i2c_rack", "ir_smp", "gpio0", "gpio1"
486 void cx88_print_irqbits(char *name
, char *tag
, char **strings
,
487 int len
, u32 bits
, u32 mask
)
491 printk(KERN_DEBUG
"%s: %s [0x%x]", name
, tag
, bits
);
492 for (i
= 0; i
< len
; i
++) {
493 if (!(bits
& (1 << i
)))
496 printk(" %s", strings
[i
]);
499 if (!(mask
& (1 << i
)))
506 /* ------------------------------------------------------------------ */
508 int cx88_core_irq(struct cx88_core
*core
, u32 status
)
512 if (status
& PCI_INT_IR_SMPINT
) {
517 cx88_print_irqbits(core
->name
, "irq pci",
518 cx88_pci_irqs
, ARRAY_SIZE(cx88_pci_irqs
),
519 status
, core
->pci_irqmask
);
523 void cx88_wakeup(struct cx88_core
*core
,
524 struct cx88_dmaqueue
*q
, u32 count
)
526 struct cx88_buffer
*buf
;
529 for (bc
= 0;; bc
++) {
530 if (list_empty(&q
->active
))
532 buf
= list_entry(q
->active
.next
,
533 struct cx88_buffer
, vb
.queue
);
534 /* count comes from the hw and is is 16bit wide --
535 * this trick handles wrap-arounds correctly for
536 * up to 32767 buffers in flight... */
537 if ((s16
) (count
- buf
->count
) < 0)
539 do_gettimeofday(&buf
->vb
.ts
);
540 dprintk(2,"[%p/%d] wakeup reg=%d buf=%d\n",buf
,buf
->vb
.i
,
542 buf
->vb
.state
= VIDEOBUF_DONE
;
543 list_del(&buf
->vb
.queue
);
544 wake_up(&buf
->vb
.done
);
546 if (list_empty(&q
->active
)) {
547 del_timer(&q
->timeout
);
549 mod_timer(&q
->timeout
, jiffies
+BUFFER_TIMEOUT
);
552 dprintk(2, "%s: %d buffers handled (should be 1)\n",
556 void cx88_shutdown(struct cx88_core
*core
)
558 /* disable RISC controller + IRQs */
559 cx_write(MO_DEV_CNTRL2
, 0);
561 /* stop dma transfers */
562 cx_write(MO_VID_DMACNTRL
, 0x0);
563 cx_write(MO_AUD_DMACNTRL
, 0x0);
564 cx_write(MO_TS_DMACNTRL
, 0x0);
565 cx_write(MO_VIP_DMACNTRL
, 0x0);
566 cx_write(MO_GPHST_DMACNTRL
, 0x0);
568 /* stop interrupts */
569 cx_write(MO_PCI_INTMSK
, 0x0);
570 cx_write(MO_VID_INTMSK
, 0x0);
571 cx_write(MO_AUD_INTMSK
, 0x0);
572 cx_write(MO_TS_INTMSK
, 0x0);
573 cx_write(MO_VIP_INTMSK
, 0x0);
574 cx_write(MO_GPHST_INTMSK
, 0x0);
577 cx_write(VID_CAPTURE_CONTROL
, 0);
580 int cx88_reset(struct cx88_core
*core
)
582 dprintk(1,"%s\n",__func__
);
585 /* clear irq status */
586 cx_write(MO_VID_INTSTAT
, 0xFFFFFFFF); // Clear PIV int
587 cx_write(MO_PCI_INTSTAT
, 0xFFFFFFFF); // Clear PCI int
588 cx_write(MO_INT1_STAT
, 0xFFFFFFFF); // Clear RISC int
594 cx88_sram_channel_setup(core
, &cx88_sram_channels
[SRAM_CH21
], 720*4, 0);
595 cx88_sram_channel_setup(core
, &cx88_sram_channels
[SRAM_CH22
], 128, 0);
596 cx88_sram_channel_setup(core
, &cx88_sram_channels
[SRAM_CH23
], 128, 0);
597 cx88_sram_channel_setup(core
, &cx88_sram_channels
[SRAM_CH24
], 128, 0);
598 cx88_sram_channel_setup(core
, &cx88_sram_channels
[SRAM_CH25
], 128, 0);
599 cx88_sram_channel_setup(core
, &cx88_sram_channels
[SRAM_CH26
], 128, 0);
600 cx88_sram_channel_setup(core
, &cx88_sram_channels
[SRAM_CH28
], 188*4, 0);
603 cx_write(MO_INPUT_FORMAT
, ((1 << 13) | // agc enable
604 (1 << 12) | // agc gain
605 (1 << 11) | // adaptibe agc
606 (0 << 10) | // chroma agc
607 (0 << 9) | // ckillen
610 /* setup image format */
611 cx_andor(MO_COLOR_CTRL
, 0x4000, 0x4000);
613 /* setup FIFO Threshholds */
614 cx_write(MO_PDMA_STHRSH
, 0x0807);
615 cx_write(MO_PDMA_DTHRSH
, 0x0807);
617 /* fixes flashing of image */
618 cx_write(MO_AGC_SYNC_TIP1
, 0x0380000F);
619 cx_write(MO_AGC_BACK_VBI
, 0x00E00555);
621 cx_write(MO_VID_INTSTAT
, 0xFFFFFFFF); // Clear PIV int
622 cx_write(MO_PCI_INTSTAT
, 0xFFFFFFFF); // Clear PCI int
623 cx_write(MO_INT1_STAT
, 0xFFFFFFFF); // Clear RISC int
625 /* Reset on-board parts */
626 cx_write(MO_SRST_IO
, 0);
628 cx_write(MO_SRST_IO
, 1);
633 /* ------------------------------------------------------------------ */
635 static unsigned int inline norm_swidth(v4l2_std_id norm
)
637 return (norm
& (V4L2_STD_MN
& ~V4L2_STD_PAL_Nc
)) ? 754 : 922;
640 static unsigned int inline norm_hdelay(v4l2_std_id norm
)
642 return (norm
& (V4L2_STD_MN
& ~V4L2_STD_PAL_Nc
)) ? 135 : 186;
645 static unsigned int inline norm_vdelay(v4l2_std_id norm
)
647 return (norm
& V4L2_STD_625_50
) ? 0x24 : 0x18;
650 static unsigned int inline norm_fsc8(v4l2_std_id norm
)
652 if (norm
& V4L2_STD_PAL_M
)
653 return 28604892; // 3.575611 MHz
655 if (norm
& (V4L2_STD_PAL_Nc
))
656 return 28656448; // 3.582056 MHz
658 if (norm
& V4L2_STD_NTSC
) // All NTSC/M and variants
659 return 28636360; // 3.57954545 MHz +/- 10 Hz
661 /* SECAM have also different sub carrier for chroma,
662 but step_db and step_dr, at cx88_set_tvnorm already handles that.
664 The same FSC applies to PAL/BGDKIH, PAL/60, NTSC/4.43 and PAL/N
667 return 35468950; // 4.43361875 MHz +/- 5 Hz
670 static unsigned int inline norm_htotal(v4l2_std_id norm
)
673 unsigned int fsc4
=norm_fsc8(norm
)/2;
675 /* returns 4*FSC / vtotal / frames per seconds */
676 return (norm
& V4L2_STD_625_50
) ?
677 ((fsc4
+312)/625+12)/25 :
678 ((fsc4
+262)/525*1001+15000)/30000;
681 static unsigned int inline norm_vbipack(v4l2_std_id norm
)
683 return (norm
& V4L2_STD_625_50
) ? 511 : 400;
686 int cx88_set_scale(struct cx88_core
*core
, unsigned int width
, unsigned int height
,
687 enum v4l2_field field
)
689 unsigned int swidth
= norm_swidth(core
->tvnorm
);
690 unsigned int sheight
= norm_maxh(core
->tvnorm
);
693 dprintk(1,"set_scale: %dx%d [%s%s,%s]\n", width
, height
,
694 V4L2_FIELD_HAS_TOP(field
) ? "T" : "",
695 V4L2_FIELD_HAS_BOTTOM(field
) ? "B" : "",
696 v4l2_norm_to_name(core
->tvnorm
));
697 if (!V4L2_FIELD_HAS_BOTH(field
))
700 // recalc H delay and scale registers
701 value
= (width
* norm_hdelay(core
->tvnorm
)) / swidth
;
703 cx_write(MO_HDELAY_EVEN
, value
);
704 cx_write(MO_HDELAY_ODD
, value
);
705 dprintk(1,"set_scale: hdelay 0x%04x (width %d)\n", value
,swidth
);
707 value
= (swidth
* 4096 / width
) - 4096;
708 cx_write(MO_HSCALE_EVEN
, value
);
709 cx_write(MO_HSCALE_ODD
, value
);
710 dprintk(1,"set_scale: hscale 0x%04x\n", value
);
712 cx_write(MO_HACTIVE_EVEN
, width
);
713 cx_write(MO_HACTIVE_ODD
, width
);
714 dprintk(1,"set_scale: hactive 0x%04x\n", width
);
716 // recalc V scale Register (delay is constant)
717 cx_write(MO_VDELAY_EVEN
, norm_vdelay(core
->tvnorm
));
718 cx_write(MO_VDELAY_ODD
, norm_vdelay(core
->tvnorm
));
719 dprintk(1,"set_scale: vdelay 0x%04x\n", norm_vdelay(core
->tvnorm
));
721 value
= (0x10000 - (sheight
* 512 / height
- 512)) & 0x1fff;
722 cx_write(MO_VSCALE_EVEN
, value
);
723 cx_write(MO_VSCALE_ODD
, value
);
724 dprintk(1,"set_scale: vscale 0x%04x\n", value
);
726 cx_write(MO_VACTIVE_EVEN
, sheight
);
727 cx_write(MO_VACTIVE_ODD
, sheight
);
728 dprintk(1,"set_scale: vactive 0x%04x\n", sheight
);
732 value
|= (1 << 19); // CFILT (default)
733 if (core
->tvnorm
& V4L2_STD_SECAM
) {
737 if (INPUT(core
->input
).type
== CX88_VMUX_SVIDEO
)
738 value
|= (1 << 13) | (1 << 5);
739 if (V4L2_FIELD_INTERLACED
== field
)
740 value
|= (1 << 3); // VINT (interlaced vertical scaling)
742 value
|= (1 << 0); // 3-tap interpolation
744 value
|= (1 << 1); // 5-tap interpolation
746 value
|= (3 << 5); // disable comb filter
748 cx_write(MO_FILTER_EVEN
, value
);
749 cx_write(MO_FILTER_ODD
, value
);
750 dprintk(1,"set_scale: filter 0x%04x\n", value
);
755 static const u32 xtal
= 28636363;
757 static int set_pll(struct cx88_core
*core
, int prescale
, u32 ofreq
)
759 static u32 pre
[] = { 0, 0, 0, 3, 2, 1 };
769 pll
= ofreq
* 8 * prescale
* (u64
)(1 << 20);
771 reg
= (pll
& 0x3ffffff) | (pre
[prescale
] << 26);
772 if (((reg
>> 20) & 0x3f) < 14) {
773 printk("%s/0: pll out of range\n",core
->name
);
777 dprintk(1,"set_pll: MO_PLL_REG 0x%08x [old=0x%08x,freq=%d]\n",
778 reg
, cx_read(MO_PLL_REG
), ofreq
);
779 cx_write(MO_PLL_REG
, reg
);
780 for (i
= 0; i
< 100; i
++) {
781 reg
= cx_read(MO_DEVICE_STATUS
);
783 dprintk(1,"pll locked [pre=%d,ofreq=%d]\n",
787 dprintk(1,"pll not locked yet, waiting ...\n");
790 dprintk(1,"pll NOT locked [pre=%d,ofreq=%d]\n",prescale
,ofreq
);
794 int cx88_start_audio_dma(struct cx88_core
*core
)
796 /* constant 128 made buzz in analog Nicam-stereo for bigger fifo_size */
797 int bpl
= cx88_sram_channels
[SRAM_CH25
].fifo_size
/4;
799 /* If downstream RISC is enabled, bail out; ALSA is managing DMA */
800 if (cx_read(MO_AUD_DMACNTRL
) & 0x10)
803 /* setup fifo + format */
804 cx88_sram_channel_setup(core
, &cx88_sram_channels
[SRAM_CH25
], bpl
, 0);
805 cx88_sram_channel_setup(core
, &cx88_sram_channels
[SRAM_CH26
], bpl
, 0);
807 cx_write(MO_AUDD_LNGTH
, bpl
); /* fifo bpl size */
808 cx_write(MO_AUDR_LNGTH
, bpl
); /* fifo bpl size */
811 cx_write(MO_AUD_DMACNTRL
, 0x0003); /* Up and Down fifo enable */
816 int cx88_stop_audio_dma(struct cx88_core
*core
)
818 /* If downstream RISC is enabled, bail out; ALSA is managing DMA */
819 if (cx_read(MO_AUD_DMACNTRL
) & 0x10)
823 cx_write(MO_AUD_DMACNTRL
, 0x0000);
828 static int set_tvaudio(struct cx88_core
*core
)
830 v4l2_std_id norm
= core
->tvnorm
;
832 if (CX88_VMUX_TELEVISION
!= INPUT(core
->input
).type
)
835 if (V4L2_STD_PAL_BG
& norm
) {
836 core
->tvaudio
= WW_BG
;
838 } else if (V4L2_STD_PAL_DK
& norm
) {
839 core
->tvaudio
= WW_DK
;
841 } else if (V4L2_STD_PAL_I
& norm
) {
842 core
->tvaudio
= WW_I
;
844 } else if (V4L2_STD_SECAM_L
& norm
) {
845 core
->tvaudio
= WW_L
;
847 } else if ((V4L2_STD_SECAM_B
| V4L2_STD_SECAM_G
| V4L2_STD_SECAM_H
) & norm
) {
848 core
->tvaudio
= WW_BG
;
850 } else if (V4L2_STD_SECAM_DK
& norm
) {
851 core
->tvaudio
= WW_DK
;
853 } else if ((V4L2_STD_NTSC_M
& norm
) ||
854 (V4L2_STD_PAL_M
& norm
)) {
855 core
->tvaudio
= WW_BTSC
;
857 } else if (V4L2_STD_NTSC_M_JP
& norm
) {
858 core
->tvaudio
= WW_EIAJ
;
861 printk("%s/0: tvaudio support needs work for this tv norm [%s], sorry\n",
862 core
->name
, v4l2_norm_to_name(core
->tvnorm
));
867 cx_andor(MO_AFECFG_IO
, 0x1f, 0x0);
868 cx88_set_tvaudio(core
);
869 /* cx88_set_stereo(dev,V4L2_TUNER_MODE_STEREO); */
872 This should be needed only on cx88-alsa. It seems that some cx88 chips have
873 bugs and does require DMA enabled for it to work.
875 cx88_start_audio_dma(core
);
881 int cx88_set_tvnorm(struct cx88_core
*core
, v4l2_std_id norm
)
888 u32 bdelay
,agcdelay
,htotal
;
889 u32 cxiformat
, cxoformat
;
892 fsc8
= norm_fsc8(norm
);
898 if (norm
& V4L2_STD_NTSC_M_JP
) {
899 cxiformat
= VideoFormatNTSCJapan
;
900 cxoformat
= 0x181f0008;
901 } else if (norm
& V4L2_STD_NTSC_443
) {
902 cxiformat
= VideoFormatNTSC443
;
903 cxoformat
= 0x181f0008;
904 } else if (norm
& V4L2_STD_PAL_M
) {
905 cxiformat
= VideoFormatPALM
;
906 cxoformat
= 0x1c1f0008;
907 } else if (norm
& V4L2_STD_PAL_N
) {
908 cxiformat
= VideoFormatPALN
;
909 cxoformat
= 0x1c1f0008;
910 } else if (norm
& V4L2_STD_PAL_Nc
) {
911 cxiformat
= VideoFormatPALNC
;
912 cxoformat
= 0x1c1f0008;
913 } else if (norm
& V4L2_STD_PAL_60
) {
914 cxiformat
= VideoFormatPAL60
;
915 cxoformat
= 0x181f0008;
916 } else if (norm
& V4L2_STD_NTSC
) {
917 cxiformat
= VideoFormatNTSC
;
918 cxoformat
= 0x181f0008;
919 } else if (norm
& V4L2_STD_SECAM
) {
920 step_db
= 4250000 * 8;
921 step_dr
= 4406250 * 8;
923 cxiformat
= VideoFormatSECAM
;
924 cxoformat
= 0x181f0008;
926 cxiformat
= VideoFormatPAL
;
927 cxoformat
= 0x181f0008;
930 dprintk(1,"set_tvnorm: \"%s\" fsc8=%d adc=%d vdec=%d db/dr=%d/%d\n",
931 v4l2_norm_to_name(core
->tvnorm
), fsc8
, adc_clock
, vdec_clock
,
933 set_pll(core
,2,vdec_clock
);
935 dprintk(1,"set_tvnorm: MO_INPUT_FORMAT 0x%08x [old=0x%08x]\n",
936 cxiformat
, cx_read(MO_INPUT_FORMAT
) & 0x0f);
937 /* Chroma AGC must be disabled if SECAM is used, we enable it
938 by default on PAL and NTSC */
939 cx_andor(MO_INPUT_FORMAT
, 0x40f,
940 norm
& V4L2_STD_SECAM
? cxiformat
: cxiformat
| 0x400);
942 // FIXME: as-is from DScaler
943 dprintk(1,"set_tvnorm: MO_OUTPUT_FORMAT 0x%08x [old=0x%08x]\n",
944 cxoformat
, cx_read(MO_OUTPUT_FORMAT
));
945 cx_write(MO_OUTPUT_FORMAT
, cxoformat
);
947 // MO_SCONV_REG = adc clock / video dec clock * 2^17
948 tmp64
= adc_clock
* (u64
)(1 << 17);
949 do_div(tmp64
, vdec_clock
);
950 dprintk(1,"set_tvnorm: MO_SCONV_REG 0x%08x [old=0x%08x]\n",
951 (u32
)tmp64
, cx_read(MO_SCONV_REG
));
952 cx_write(MO_SCONV_REG
, (u32
)tmp64
);
954 // MO_SUB_STEP = 8 * fsc / video dec clock * 2^22
955 tmp64
= step_db
* (u64
)(1 << 22);
956 do_div(tmp64
, vdec_clock
);
957 dprintk(1,"set_tvnorm: MO_SUB_STEP 0x%08x [old=0x%08x]\n",
958 (u32
)tmp64
, cx_read(MO_SUB_STEP
));
959 cx_write(MO_SUB_STEP
, (u32
)tmp64
);
961 // MO_SUB_STEP_DR = 8 * 4406250 / video dec clock * 2^22
962 tmp64
= step_dr
* (u64
)(1 << 22);
963 do_div(tmp64
, vdec_clock
);
964 dprintk(1,"set_tvnorm: MO_SUB_STEP_DR 0x%08x [old=0x%08x]\n",
965 (u32
)tmp64
, cx_read(MO_SUB_STEP_DR
));
966 cx_write(MO_SUB_STEP_DR
, (u32
)tmp64
);
969 bdelay
= vdec_clock
* 65 / 20000000 + 21;
970 agcdelay
= vdec_clock
* 68 / 20000000 + 15;
971 dprintk(1,"set_tvnorm: MO_AGC_BURST 0x%08x [old=0x%08x,bdelay=%d,agcdelay=%d]\n",
972 (bdelay
<< 8) | agcdelay
, cx_read(MO_AGC_BURST
), bdelay
, agcdelay
);
973 cx_write(MO_AGC_BURST
, (bdelay
<< 8) | agcdelay
);
976 tmp64
= norm_htotal(norm
) * (u64
)vdec_clock
;
978 htotal
= (u32
)tmp64
| (HLNotchFilter4xFsc
<< 11);
979 dprintk(1,"set_tvnorm: MO_HTOTAL 0x%08x [old=0x%08x,htotal=%d]\n",
980 htotal
, cx_read(MO_HTOTAL
), (u32
)tmp64
);
981 cx_write(MO_HTOTAL
, htotal
);
983 // vbi stuff, set vbi offset to 10 (for 20 Clk*2 pixels), this makes
984 // the effective vbi offset ~244 samples, the same as the Bt8x8
985 cx_write(MO_VBI_PACKET
, (10<<11) | norm_vbipack(norm
));
987 // this is needed as well to set all tvnorm parameter
988 cx88_set_scale(core
, 320, 240, V4L2_FIELD_INTERLACED
);
994 call_all(core
, tuner
, s_std
, norm
);
1000 /* ------------------------------------------------------------------ */
1002 struct video_device
*cx88_vdev_init(struct cx88_core
*core
,
1003 struct pci_dev
*pci
,
1004 struct video_device
*template,
1007 struct video_device
*vfd
;
1009 vfd
= video_device_alloc();
1014 vfd
->v4l2_dev
= &core
->v4l2_dev
;
1015 vfd
->parent
= &pci
->dev
;
1016 vfd
->release
= video_device_release
;
1017 snprintf(vfd
->name
, sizeof(vfd
->name
), "%s %s (%s)",
1018 core
->name
, type
, core
->board
.name
);
1022 struct cx88_core
* cx88_core_get(struct pci_dev
*pci
)
1024 struct cx88_core
*core
;
1026 mutex_lock(&devlist
);
1027 list_for_each_entry(core
, &cx88_devlist
, devlist
) {
1028 if (pci
->bus
->number
!= core
->pci_bus
)
1030 if (PCI_SLOT(pci
->devfn
) != core
->pci_slot
)
1033 if (0 != cx88_get_resources(core
, pci
)) {
1034 mutex_unlock(&devlist
);
1037 atomic_inc(&core
->refcount
);
1038 mutex_unlock(&devlist
);
1042 core
= cx88_core_create(pci
, cx88_devcount
);
1045 list_add_tail(&core
->devlist
, &cx88_devlist
);
1048 mutex_unlock(&devlist
);
1052 void cx88_core_put(struct cx88_core
*core
, struct pci_dev
*pci
)
1054 release_mem_region(pci_resource_start(pci
,0),
1055 pci_resource_len(pci
,0));
1057 if (!atomic_dec_and_test(&core
->refcount
))
1060 mutex_lock(&devlist
);
1062 if (0 == core
->i2c_rc
) {
1064 i2c_unregister_device(core
->i2c_rtc
);
1065 i2c_del_adapter(&core
->i2c_adap
);
1067 list_del(&core
->devlist
);
1068 iounmap(core
->lmmio
);
1070 mutex_unlock(&devlist
);
1071 v4l2_device_unregister(&core
->v4l2_dev
);
1075 /* ------------------------------------------------------------------ */
1077 EXPORT_SYMBOL(cx88_print_irqbits
);
1079 EXPORT_SYMBOL(cx88_core_irq
);
1080 EXPORT_SYMBOL(cx88_wakeup
);
1081 EXPORT_SYMBOL(cx88_reset
);
1082 EXPORT_SYMBOL(cx88_shutdown
);
1084 EXPORT_SYMBOL(cx88_risc_buffer
);
1085 EXPORT_SYMBOL(cx88_risc_databuffer
);
1086 EXPORT_SYMBOL(cx88_risc_stopper
);
1087 EXPORT_SYMBOL(cx88_free_buffer
);
1089 EXPORT_SYMBOL(cx88_sram_channels
);
1090 EXPORT_SYMBOL(cx88_sram_channel_setup
);
1091 EXPORT_SYMBOL(cx88_sram_channel_dump
);
1093 EXPORT_SYMBOL(cx88_set_tvnorm
);
1094 EXPORT_SYMBOL(cx88_set_scale
);
1096 EXPORT_SYMBOL(cx88_vdev_init
);
1097 EXPORT_SYMBOL(cx88_core_get
);
1098 EXPORT_SYMBOL(cx88_core_put
);
1100 EXPORT_SYMBOL(cx88_ir_start
);
1101 EXPORT_SYMBOL(cx88_ir_stop
);
1107 * kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off