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path: root/drivers/media/video/cx88/cx88-core.c
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Diffstat (limited to 'drivers/media/video/cx88/cx88-core.c')
-rw-r--r--drivers/media/video/cx88/cx88-core.c90
1 files changed, 60 insertions, 30 deletions
diff --git a/drivers/media/video/cx88/cx88-core.c b/drivers/media/video/cx88/cx88-core.c
index dc5c5c1f3461..bb6eb54e19ce 100644
--- a/drivers/media/video/cx88/cx88-core.c
+++ b/drivers/media/video/cx88/cx88-core.c
@@ -31,7 +31,7 @@
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/delay.h>
-#include <linux/videodev.h>
+#include <linux/videodev2.h>
#include "cx88.h"
@@ -153,26 +153,26 @@ static u32* cx88_risc_field(u32 *rp, struct scatterlist *sglist,
}
if (bpl <= sg_dma_len(sg)-offset) {
/* fits into current chunk */
- *(rp++)=cpu_to_le32(RISC_WRITE|RISC_SOL|RISC_EOL|bpl);
- *(rp++)=cpu_to_le32(sg_dma_address(sg)+offset);
- offset+=bpl;
+ *(rp++)=cpu_to_le32(RISC_WRITE|RISC_SOL|RISC_EOL|bpl);
+ *(rp++)=cpu_to_le32(sg_dma_address(sg)+offset);
+ offset+=bpl;
} else {
/* scanline needs to be splitted */
- todo = bpl;
- *(rp++)=cpu_to_le32(RISC_WRITE|RISC_SOL|
+ todo = bpl;
+ *(rp++)=cpu_to_le32(RISC_WRITE|RISC_SOL|
(sg_dma_len(sg)-offset));
- *(rp++)=cpu_to_le32(sg_dma_address(sg)+offset);
- todo -= (sg_dma_len(sg)-offset);
- offset = 0;
- sg++;
- while (todo > sg_dma_len(sg)) {
- *(rp++)=cpu_to_le32(RISC_WRITE|
+ *(rp++)=cpu_to_le32(sg_dma_address(sg)+offset);
+ todo -= (sg_dma_len(sg)-offset);
+ offset = 0;
+ sg++;
+ while (todo > sg_dma_len(sg)) {
+ *(rp++)=cpu_to_le32(RISC_WRITE|
sg_dma_len(sg));
- *(rp++)=cpu_to_le32(sg_dma_address(sg));
+ *(rp++)=cpu_to_le32(sg_dma_address(sg));
todo -= sg_dma_len(sg);
sg++;
}
- *(rp++)=cpu_to_le32(RISC_WRITE|RISC_EOL|todo);
+ *(rp++)=cpu_to_le32(RISC_WRITE|RISC_EOL|todo);
*(rp++)=cpu_to_le32(sg_dma_address(sg));
offset += todo;
}
@@ -309,7 +309,7 @@ struct sram_channel cx88_sram_channels[] = {
.name = "video y / packed",
.cmds_start = 0x180040,
.ctrl_start = 0x180400,
- .cdt = 0x180400 + 64,
+ .cdt = 0x180400 + 64,
.fifo_start = 0x180c00,
.fifo_size = 0x002800,
.ptr1_reg = MO_DMA21_PTR1,
@@ -321,7 +321,7 @@ struct sram_channel cx88_sram_channels[] = {
.name = "video u",
.cmds_start = 0x180080,
.ctrl_start = 0x1804a0,
- .cdt = 0x1804a0 + 64,
+ .cdt = 0x1804a0 + 64,
.fifo_start = 0x183400,
.fifo_size = 0x000800,
.ptr1_reg = MO_DMA22_PTR1,
@@ -333,7 +333,7 @@ struct sram_channel cx88_sram_channels[] = {
.name = "video v",
.cmds_start = 0x1800c0,
.ctrl_start = 0x180540,
- .cdt = 0x180540 + 64,
+ .cdt = 0x180540 + 64,
.fifo_start = 0x183c00,
.fifo_size = 0x000800,
.ptr1_reg = MO_DMA23_PTR1,
@@ -345,7 +345,7 @@ struct sram_channel cx88_sram_channels[] = {
.name = "vbi",
.cmds_start = 0x180100,
.ctrl_start = 0x1805e0,
- .cdt = 0x1805e0 + 64,
+ .cdt = 0x1805e0 + 64,
.fifo_start = 0x184400,
.fifo_size = 0x001000,
.ptr1_reg = MO_DMA24_PTR1,
@@ -357,7 +357,7 @@ struct sram_channel cx88_sram_channels[] = {
.name = "audio from",
.cmds_start = 0x180140,
.ctrl_start = 0x180680,
- .cdt = 0x180680 + 64,
+ .cdt = 0x180680 + 64,
.fifo_start = 0x185400,
.fifo_size = 0x000200,
.ptr1_reg = MO_DMA25_PTR1,
@@ -369,7 +369,7 @@ struct sram_channel cx88_sram_channels[] = {
.name = "audio to",
.cmds_start = 0x180180,
.ctrl_start = 0x180720,
- .cdt = 0x180680 + 64, /* same as audio IN */
+ .cdt = 0x180680 + 64, /* same as audio IN */
.fifo_start = 0x185400, /* same as audio IN */
.fifo_size = 0x000200, /* same as audio IN */
.ptr1_reg = MO_DMA26_PTR1,
@@ -431,7 +431,7 @@ int cx88_sram_channel_setup(struct cx88_core *core,
/* ------------------------------------------------------------------ */
/* debug helper code */
-int cx88_risc_decode(u32 risc)
+static int cx88_risc_decode(u32 risc)
{
static char *instr[16] = {
[ RISC_SYNC >> 28 ] = "sync",
@@ -837,6 +837,29 @@ static int set_pll(struct cx88_core *core, int prescale, u32 ofreq)
return -1;
}
+int cx88_start_audio_dma(struct cx88_core *core)
+{
+ /* setup fifo + format */
+ cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH25], 128, 0);
+ cx88_sram_channel_setup(core, &cx88_sram_channels[SRAM_CH26], 128, 0);
+
+ cx_write(MO_AUDD_LNGTH, 128); /* fifo bpl size */
+ cx_write(MO_AUDR_LNGTH, 128); /* fifo bpl size */
+
+ /* start dma */
+ cx_write(MO_AUD_DMACNTRL, 0x0003); /* Up and Down fifo enable */
+
+ return 0;
+}
+
+int cx88_stop_audio_dma(struct cx88_core *core)
+{
+ /* stop dma */
+ cx_write(MO_AUD_DMACNTRL, 0x0000);
+
+ return 0;
+}
+
static int set_tvaudio(struct cx88_core *core)
{
struct cx88_tvnorm *norm = core->tvnorm;
@@ -845,19 +868,19 @@ static int set_tvaudio(struct cx88_core *core)
return 0;
if (V4L2_STD_PAL_BG & norm->id) {
- core->tvaudio = nicam ? WW_NICAM_BGDKL : WW_A2_BG;
+ core->tvaudio = WW_BG;
} else if (V4L2_STD_PAL_DK & norm->id) {
- core->tvaudio = nicam ? WW_NICAM_BGDKL : WW_A2_DK;
+ core->tvaudio = WW_DK;
} else if (V4L2_STD_PAL_I & norm->id) {
- core->tvaudio = WW_NICAM_I;
+ core->tvaudio = WW_I;
} else if (V4L2_STD_SECAM_L & norm->id) {
- core->tvaudio = WW_SYSTEM_L_AM;
+ core->tvaudio = WW_L;
} else if (V4L2_STD_SECAM_DK & norm->id) {
- core->tvaudio = WW_A2_DK;
+ core->tvaudio = WW_DK;
} else if ((V4L2_STD_NTSC_M & norm->id) ||
(V4L2_STD_PAL_M & norm->id)) {
@@ -877,12 +900,16 @@ static int set_tvaudio(struct cx88_core *core)
cx88_set_tvaudio(core);
/* cx88_set_stereo(dev,V4L2_TUNER_MODE_STEREO); */
- cx_write(MO_AUDD_LNGTH, 128); /* fifo size */
- cx_write(MO_AUDR_LNGTH, 128); /* fifo size */
- cx_write(MO_AUD_DMACNTRL, 0x03); /* need audio fifo */
+/*
+ This should be needed only on cx88-alsa. It seems that some cx88 chips have
+ bugs and does require DMA enabled for it to work.
+ */
+ cx88_start_audio_dma(core);
return 0;
}
+
+
int cx88_set_tvnorm(struct cx88_core *core, struct cx88_tvnorm *norm)
{
u32 fsc8;
@@ -1137,7 +1164,7 @@ struct cx88_core* cx88_core_get(struct pci_dev *pci)
if (!core->radio_addr)
core->radio_addr = cx88_boards[core->board].radio_addr;
- printk(KERN_INFO "TV tuner %d at 0x%02x, Radio tuner %d at 0x%02x\n",
+ printk(KERN_INFO "TV tuner %d at 0x%02x, Radio tuner %d at 0x%02x\n",
core->tuner_type, core->tuner_addr<<1,
core->radio_type, core->radio_addr<<1);
@@ -1146,6 +1173,7 @@ struct cx88_core* cx88_core_get(struct pci_dev *pci)
/* init hardware */
cx88_reset(core);
cx88_i2c_init(core,pci);
+ cx88_call_i2c_clients (core, TUNER_SET_STANDBY, NULL);
cx88_card_setup(core);
cx88_ir_init(core,pci);
@@ -1203,6 +1231,8 @@ EXPORT_SYMBOL(cx88_set_scale);
EXPORT_SYMBOL(cx88_vdev_init);
EXPORT_SYMBOL(cx88_core_get);
EXPORT_SYMBOL(cx88_core_put);
+EXPORT_SYMBOL(cx88_start_audio_dma);
+EXPORT_SYMBOL(cx88_stop_audio_dma);
/*
* Local variables:
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-18 19:58:15 +0000