V4L/DVB (4005): Add support for the cx25836/7 video decoder.

Signed-off-by: Scott Alfter <salfter@ssai.us>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hans Verkuil 2006-04-22 10:22:46 -03:00 committed by Mauro Carvalho Chehab
parent 3eb7317055
commit e2b8cf4ced
4 changed files with 156 additions and 56 deletions

View File

@ -31,7 +31,8 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
return -EINVAL;
/* assert soft reset */
cx25840_and_or(client, 0x810, ~0x1, 0x01);
if (!state->is_cx25836)
cx25840_and_or(client, 0x810, ~0x1, 0x01);
/* common for all inputs and rates */
/* SA_MCLK_SEL=1, SA_MCLK_DIV=0x10 */
@ -46,6 +47,9 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
/* AUX_PLL_FRAC */
cx25840_write4(client, 0x110, 0xee39bb01);
if (state->is_cx25836)
break;
/* src3/4/6_ctl = 0x0801f77f */
cx25840_write4(client, 0x900, 0x7ff70108);
cx25840_write4(client, 0x904, 0x7ff70108);
@ -59,6 +63,9 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
/* AUX_PLL_FRAC */
cx25840_write4(client, 0x110, 0xd66bec00);
if (state->is_cx25836)
break;
/* src3/4/6_ctl = 0x08016d59 */
cx25840_write4(client, 0x900, 0x596d0108);
cx25840_write4(client, 0x904, 0x596d0108);
@ -72,6 +79,9 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
/* AUX_PLL_FRAC */
cx25840_write4(client, 0x110, 0xe5d69800);
if (state->is_cx25836)
break;
/* src3/4/6_ctl = 0x08014faa */
cx25840_write4(client, 0x900, 0xaa4f0108);
cx25840_write4(client, 0x904, 0xaa4f0108);
@ -87,6 +97,9 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
/* AUX_PLL_FRAC */
cx25840_write4(client, 0x110, 0x69082a01);
if (state->is_cx25836)
break;
/* src1_ctl = 0x08010000 */
cx25840_write4(client, 0x8f8, 0x00000108);
@ -106,6 +119,9 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
/* AUX_PLL_FRAC */
cx25840_write4(client, 0x110, 0xd66bec00);
if (state->is_cx25836)
break;
/* src1_ctl = 0x08010000 */
cx25840_write4(client, 0x8f8, 0xcd600108);
@ -122,6 +138,9 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
/* AUX_PLL_FRAC */
cx25840_write4(client, 0x110, 0xe5d69800);
if (state->is_cx25836)
break;
/* src1_ctl = 0x08010000 */
cx25840_write4(client, 0x8f8, 0x00800108);
@ -134,7 +153,8 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
}
/* deassert soft reset */
cx25840_and_or(client, 0x810, ~0x1, 0x00);
if (!state->is_cx25836)
cx25840_and_or(client, 0x810, ~0x1, 0x00);
state->audclk_freq = freq;

View File

@ -105,7 +105,7 @@ u32 cx25840_read4(struct i2c_client * client, u16 addr)
(buffer[2] << 8) | buffer[3];
}
int cx25840_and_or(struct i2c_client *client, u16 addr, u8 and_mask,
int cx25840_and_or(struct i2c_client *client, u16 addr, unsigned and_mask,
u8 or_value)
{
return cx25840_write(client, addr,
@ -117,7 +117,8 @@ int cx25840_and_or(struct i2c_client *client, u16 addr, u8 and_mask,
static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
enum cx25840_audio_input aud_input);
static void log_status(struct i2c_client *client);
static void log_audio_status(struct i2c_client *client);
static void log_video_status(struct i2c_client *client);
/* ----------------------------------------------------------------------- */
@ -147,6 +148,33 @@ static void init_dll2(struct i2c_client *client)
cx25840_write(client, 0x15d, 0xe1);
}
static void cx25836_initialize(struct i2c_client *client)
{
/* reset configuration is described on page 3-77 of the CX25836 datasheet */
/* 2. */
cx25840_and_or(client, 0x000, ~0x01, 0x01);
cx25840_and_or(client, 0x000, ~0x01, 0x00);
/* 3a. */
cx25840_and_or(client, 0x15a, ~0x70, 0x00);
/* 3b. */
cx25840_and_or(client, 0x15b, ~0x1e, 0x06);
/* 3c. */
cx25840_and_or(client, 0x159, ~0x02, 0x02);
/* 3d. */
/* There should be a 10-us delay here, but since the
i2c bus already has a 10-us delay we don't need to do
anything */
/* 3e. */
cx25840_and_or(client, 0x159, ~0x02, 0x00);
/* 3f. */
cx25840_and_or(client, 0x159, ~0xc0, 0xc0);
/* 3g. */
cx25840_and_or(client, 0x159, ~0x01, 0x00);
cx25840_and_or(client, 0x159, ~0x01, 0x01);
/* 3h. */
cx25840_and_or(client, 0x15b, ~0x1e, 0x10);
}
static void cx25840_initialize(struct i2c_client *client, int loadfw)
{
struct cx25840_state *state = i2c_get_clientdata(client);
@ -319,8 +347,10 @@ static int set_input(struct i2c_client *client, enum cx25840_video_input vid_inp
state->vid_input = vid_input;
state->aud_input = aud_input;
cx25840_audio_set_path(client);
input_change(client);
if (!state->is_cx25836) {
cx25840_audio_set_path(client);
input_change(client);
}
return 0;
}
@ -370,6 +400,7 @@ static int set_v4lstd(struct i2c_client *client, v4l2_std_id std)
v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client)
{
struct cx25840_state *state = i2c_get_clientdata(client);
/* check VID_FMT_SEL first */
u8 fmt = cx25840_read(client, 0x400) & 0xf;
@ -383,7 +414,7 @@ v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client)
{
/* if the audio std is A2-M, then this is the South Korean
NTSC standard */
if (cx25840_read(client, 0x805) == 2)
if (!state->is_cx25836 && cx25840_read(client, 0x805) == 2)
return V4L2_STD_NTSC_M_KR;
return V4L2_STD_NTSC_M;
}
@ -456,6 +487,8 @@ static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
case V4L2_CID_AUDIO_TREBLE:
case V4L2_CID_AUDIO_BALANCE:
case V4L2_CID_AUDIO_MUTE:
if (state->is_cx25836)
return -EINVAL;
return cx25840_audio(client, VIDIOC_S_CTRL, ctrl);
default:
@ -490,6 +523,8 @@ static int get_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
case V4L2_CID_AUDIO_TREBLE:
case V4L2_CID_AUDIO_BALANCE:
case V4L2_CID_AUDIO_MUTE:
if (state->is_cx25836)
return -EINVAL;
return cx25840_audio(client, VIDIOC_G_CTRL, ctrl);
default:
return -EINVAL;
@ -579,7 +614,7 @@ static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
/* ----------------------------------------------------------------------- */
static struct v4l2_queryctrl cx25840_qctrl[] = {
static struct v4l2_queryctrl cx25836_qctrl[] = {
{
.id = V4L2_CID_BRIGHTNESS,
.type = V4L2_CTRL_TYPE_INTEGER,
@ -616,7 +651,11 @@ static struct v4l2_queryctrl cx25840_qctrl[] = {
.step = 1,
.default_value = 0,
.flags = 0,
}, {
},
};
static struct v4l2_queryctrl cx25840_qctrl[] = {
{
.id = V4L2_CID_AUDIO_VOLUME,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Volume",
@ -706,8 +745,8 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd,
case VIDIOC_STREAMON:
v4l_dbg(1, cx25840_debug, client, "enable output\n");
cx25840_write(client, 0x115, 0x8c);
cx25840_write(client, 0x116, 0x07);
cx25840_write(client, 0x115, state->is_cx25836 ? 0x0c : 0x8c);
cx25840_write(client, 0x116, state->is_cx25836 ? 0x04 : 0x07);
break;
case VIDIOC_STREAMOFF:
@ -717,7 +756,9 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd,
break;
case VIDIOC_LOG_STATUS:
log_status(client);
log_video_status(client);
if (!state->is_cx25836)
log_audio_status(client);
break;
case VIDIOC_G_CTRL:
@ -731,6 +772,14 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd,
struct v4l2_queryctrl *qc = arg;
int i;
for (i = 0; i < ARRAY_SIZE(cx25836_qctrl); i++)
if (qc->id && qc->id == cx25836_qctrl[i].id) {
memcpy(qc, &cx25836_qctrl[i], sizeof(*qc));
return 0;
}
if (state->is_cx25836)
return -EINVAL;
for (i = 0; i < ARRAY_SIZE(cx25840_qctrl); i++)
if (qc->id && qc->id == cx25840_qctrl[i].id) {
memcpy(qc, &cx25840_qctrl[i], sizeof(*qc));
@ -760,31 +809,41 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd,
return set_input(client, route->input, state->aud_input);
case VIDIOC_INT_G_AUDIO_ROUTING:
if (state->is_cx25836)
return -EINVAL;
route->input = state->aud_input;
route->output = 0;
break;
case VIDIOC_INT_S_AUDIO_ROUTING:
if (state->is_cx25836)
return -EINVAL;
return set_input(client, state->vid_input, route->input);
case VIDIOC_S_FREQUENCY:
input_change(client);
if (!state->is_cx25836) {
input_change(client);
}
break;
case VIDIOC_G_TUNER:
{
u8 mode = cx25840_read(client, 0x804);
u8 vpres = cx25840_read(client, 0x80a) & 0x10;
u8 vpres = cx25840_read(client, 0x40e) & 0x20;
u8 mode;
int val = 0;
if (state->radio)
break;
vt->signal = vpres ? 0xffff : 0x0;
if (state->is_cx25836)
break;
vt->capability |=
V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
vt->signal = vpres ? 0xffff : 0x0;
mode = cx25840_read(client, 0x804);
/* get rxsubchans and audmode */
if ((mode & 0xf) == 1)
@ -804,7 +863,7 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd,
}
case VIDIOC_S_TUNER:
if (state->radio)
if (state->radio || state->is_cx25836)
break;
switch (vt->audmode) {
@ -846,12 +905,14 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd,
return set_v4lfmt(client, (struct v4l2_format *)arg);
case VIDIOC_INT_RESET:
cx25840_initialize(client, 0);
if (state->is_cx25836)
cx25836_initialize(client);
else
cx25840_initialize(client, 0);
break;
case VIDIOC_INT_G_CHIP_IDENT:
*(enum v4l2_chip_ident *)arg =
V4L2_IDENT_CX25840 + ((cx25840_read(client, 0x100) >> 4) & 0xf);
*(enum v4l2_chip_ident *)arg = state->id;
break;
default:
@ -870,6 +931,7 @@ static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
{
struct i2c_client *client;
struct cx25840_state *state;
enum v4l2_chip_ident id;
u16 device_id;
/* Check if the adapter supports the needed features
@ -878,10 +940,11 @@ static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
return 0;
client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
if (client == 0)
state = kzalloc(sizeof(struct cx25840_state), GFP_KERNEL);
if (state == 0)
return -ENOMEM;
client = &state->c;
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver_cx25840;
@ -893,10 +956,18 @@ static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
device_id |= cx25840_read(client, 0x100);
/* The high byte of the device ID should be
* 0x84 if chip is present */
if ((device_id & 0xff00) != 0x8400) {
* 0x83 for the cx2583x and 0x84 for the cx2584x */
if ((device_id & 0xff00) == 0x8300) {
id = V4L2_IDENT_CX25836 + ((device_id >> 4) & 0xf) - 6;
state->is_cx25836 = 1;
}
else if ((device_id & 0xff00) == 0x8400) {
id = V4L2_IDENT_CX25840 + ((device_id >> 4) & 0xf);
state->is_cx25836 = 0;
}
else {
v4l_dbg(1, cx25840_debug, client, "cx25840 not found\n");
kfree(client);
kfree(state);
return 0;
}
@ -905,21 +976,18 @@ static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
(device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : 3,
address << 1, adapter->name);
state = kmalloc(sizeof(struct cx25840_state), GFP_KERNEL);
if (state == NULL) {
kfree(client);
return -ENOMEM;
}
i2c_set_clientdata(client, state);
memset(state, 0, sizeof(struct cx25840_state));
state->vid_input = CX25840_COMPOSITE7;
state->aud_input = CX25840_AUDIO8;
state->audclk_freq = 48000;
state->pvr150_workaround = 0;
state->audmode = V4L2_TUNER_MODE_LANG1;
state->id = id;
cx25840_initialize(client, 1);
if (state->is_cx25836)
cx25836_initialize(client);
else
cx25840_initialize(client, 1);
i2c_attach_client(client);
@ -944,7 +1012,6 @@ static int cx25840_detach_client(struct i2c_client *client)
}
kfree(state);
kfree(client);
return 0;
}
@ -977,7 +1044,7 @@ module_exit(m__exit);
/* ----------------------------------------------------------------------- */
static void log_status(struct i2c_client *client)
static void log_video_status(struct i2c_client *client)
{
static const char *const fmt_strs[] = {
"0x0",
@ -989,9 +1056,36 @@ static void log_status(struct i2c_client *client)
};
struct cx25840_state *state = i2c_get_clientdata(client);
u8 microctrl_vidfmt = cx25840_read(client, 0x80a);
u8 vidfmt_sel = cx25840_read(client, 0x400) & 0xf;
u8 gen_stat1 = cx25840_read(client, 0x40d);
u8 gen_stat2 = cx25840_read(client, 0x40e);
int vid_input = state->vid_input;
v4l_info(client, "Video signal: %spresent\n",
(gen_stat2 & 0x20) ? "" : "not ");
v4l_info(client, "Detected format: %s\n",
fmt_strs[gen_stat1 & 0xf]);
v4l_info(client, "Specified standard: %s\n",
vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection");
if (vid_input >= CX25840_COMPOSITE1 &&
vid_input <= CX25840_COMPOSITE8) {
v4l_info(client, "Specified video input: Composite %d\n",
vid_input - CX25840_COMPOSITE1 + 1);
} else {
v4l_info(client, "Specified video input: S-Video (Luma In%d, Chroma In%d)\n",
(vid_input & 0xf0) >> 4, (vid_input & 0xf00) >> 8);
}
v4l_info(client, "Specified audioclock freq: %d Hz\n", state->audclk_freq);
}
/* ----------------------------------------------------------------------- */
static void log_audio_status(struct i2c_client *client)
{
struct cx25840_state *state = i2c_get_clientdata(client);
u8 download_ctl = cx25840_read(client, 0x803);
u8 mod_det_stat0 = cx25840_read(client, 0x804);
u8 mod_det_stat1 = cx25840_read(client, 0x805);
@ -999,15 +1093,9 @@ static void log_status(struct i2c_client *client)
u8 pref_mode = cx25840_read(client, 0x809);
u8 afc0 = cx25840_read(client, 0x80b);
u8 mute_ctl = cx25840_read(client, 0x8d3);
int vid_input = state->vid_input;
int aud_input = state->aud_input;
char *p;
v4l_info(client, "Video signal: %spresent\n",
(microctrl_vidfmt & 0x10) ? "" : "not ");
v4l_info(client, "Detected format: %s\n",
fmt_strs[gen_stat1 & 0xf]);
switch (mod_det_stat0) {
case 0x00: p = "mono"; break;
case 0x01: p = "stereo"; break;
@ -1107,25 +1195,12 @@ static void log_status(struct i2c_client *client)
v4l_info(client, "Configured audio system: %s\n", p);
}
v4l_info(client, "Specified standard: %s\n",
vidfmt_sel ? fmt_strs[vidfmt_sel] : "automatic detection");
if (vid_input >= CX25840_COMPOSITE1 &&
vid_input <= CX25840_COMPOSITE8) {
v4l_info(client, "Specified video input: Composite %d\n",
vid_input - CX25840_COMPOSITE1 + 1);
} else {
v4l_info(client, "Specified video input: S-Video (Luma In%d, Chroma In%d)\n",
(vid_input & 0xf0) >> 4, (vid_input & 0xf00) >> 8);
}
if (aud_input) {
v4l_info(client, "Specified audio input: Tuner (In%d)\n", aud_input);
} else {
v4l_info(client, "Specified audio input: External\n");
}
v4l_info(client, "Specified audioclock freq: %d Hz\n", state->audclk_freq);
switch (pref_mode & 0xf) {
case 0: p = "mono/language A"; break;
case 1: p = "language B"; break;

View File

@ -33,12 +33,15 @@
#define CX25840_CID_ENABLE_PVR150_WORKAROUND (V4L2_CID_PRIVATE_BASE+0)
struct cx25840_state {
struct i2c_client c;
int pvr150_workaround;
int radio;
enum cx25840_video_input vid_input;
enum cx25840_audio_input aud_input;
u32 audclk_freq;
int audmode;
enum v4l2_chip_ident id;
int is_cx25836;
};
/* ----------------------------------------------------------------------- */
@ -47,7 +50,7 @@ int cx25840_write(struct i2c_client *client, u16 addr, u8 value);
int cx25840_write4(struct i2c_client *client, u16 addr, u32 value);
u8 cx25840_read(struct i2c_client *client, u16 addr);
u32 cx25840_read4(struct i2c_client *client, u16 addr);
int cx25840_and_or(struct i2c_client *client, u16 addr, u8 mask, u8 value);
int cx25840_and_or(struct i2c_client *client, u16 addr, unsigned mask, u8 value);
v4l2_std_id cx25840_get_v4lstd(struct i2c_client *client);
/* ----------------------------------------------------------------------- */

View File

@ -112,6 +112,8 @@ enum v4l2_chip_ident {
V4L2_IDENT_SAA7129 = 159,
/* module cx25840: reserved range 200-249 */
V4L2_IDENT_CX25836 = 236,
V4L2_IDENT_CX25837 = 237,
V4L2_IDENT_CX25840 = 240,
V4L2_IDENT_CX25841 = 241,
V4L2_IDENT_CX25842 = 242,