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https://mirrors.bfsu.edu.cn/git/linux.git
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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
Mauro Carvalho Chehab
parent
3eb7317055
commit
e2b8cf4ced
@ -31,7 +31,8 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
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return -EINVAL;
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/* assert soft reset */
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cx25840_and_or(client, 0x810, ~0x1, 0x01);
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if (!state->is_cx25836)
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cx25840_and_or(client, 0x810, ~0x1, 0x01);
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/* common for all inputs and rates */
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/* SA_MCLK_SEL=1, SA_MCLK_DIV=0x10 */
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@ -46,6 +47,9 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
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/* AUX_PLL_FRAC */
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cx25840_write4(client, 0x110, 0xee39bb01);
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if (state->is_cx25836)
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break;
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/* src3/4/6_ctl = 0x0801f77f */
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cx25840_write4(client, 0x900, 0x7ff70108);
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cx25840_write4(client, 0x904, 0x7ff70108);
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@ -59,6 +63,9 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
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/* AUX_PLL_FRAC */
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cx25840_write4(client, 0x110, 0xd66bec00);
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if (state->is_cx25836)
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break;
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/* src3/4/6_ctl = 0x08016d59 */
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cx25840_write4(client, 0x900, 0x596d0108);
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cx25840_write4(client, 0x904, 0x596d0108);
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@ -72,6 +79,9 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
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/* AUX_PLL_FRAC */
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cx25840_write4(client, 0x110, 0xe5d69800);
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if (state->is_cx25836)
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break;
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/* src3/4/6_ctl = 0x08014faa */
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cx25840_write4(client, 0x900, 0xaa4f0108);
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cx25840_write4(client, 0x904, 0xaa4f0108);
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@ -87,6 +97,9 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
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/* AUX_PLL_FRAC */
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cx25840_write4(client, 0x110, 0x69082a01);
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if (state->is_cx25836)
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break;
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/* src1_ctl = 0x08010000 */
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cx25840_write4(client, 0x8f8, 0x00000108);
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@ -106,6 +119,9 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
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/* AUX_PLL_FRAC */
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cx25840_write4(client, 0x110, 0xd66bec00);
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if (state->is_cx25836)
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break;
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/* src1_ctl = 0x08010000 */
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cx25840_write4(client, 0x8f8, 0xcd600108);
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@ -122,6 +138,9 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
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/* AUX_PLL_FRAC */
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cx25840_write4(client, 0x110, 0xe5d69800);
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if (state->is_cx25836)
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break;
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/* src1_ctl = 0x08010000 */
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cx25840_write4(client, 0x8f8, 0x00800108);
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@ -134,7 +153,8 @@ static int set_audclk_freq(struct i2c_client *client, u32 freq)
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}
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/* deassert soft reset */
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cx25840_and_or(client, 0x810, ~0x1, 0x00);
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if (!state->is_cx25836)
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cx25840_and_or(client, 0x810, ~0x1, 0x00);
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state->audclk_freq = freq;
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@ -105,7 +105,7 @@ u32 cx25840_read4(struct i2c_client * client, u16 addr)
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(buffer[2] << 8) | buffer[3];
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}
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int cx25840_and_or(struct i2c_client *client, u16 addr, u8 and_mask,
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int cx25840_and_or(struct i2c_client *client, u16 addr, unsigned and_mask,
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u8 or_value)
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{
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return cx25840_write(client, addr,
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@ -117,7 +117,8 @@ int cx25840_and_or(struct i2c_client *client, u16 addr, u8 and_mask,
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static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input,
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enum cx25840_audio_input aud_input);
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static void log_status(struct i2c_client *client);
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static void log_audio_status(struct i2c_client *client);
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static void log_video_status(struct i2c_client *client);
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/* ----------------------------------------------------------------------- */
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@ -147,6 +148,33 @@ static void init_dll2(struct i2c_client *client)
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cx25840_write(client, 0x15d, 0xe1);
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}
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static void cx25836_initialize(struct i2c_client *client)
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{
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/* reset configuration is described on page 3-77 of the CX25836 datasheet */
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/* 2. */
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cx25840_and_or(client, 0x000, ~0x01, 0x01);
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cx25840_and_or(client, 0x000, ~0x01, 0x00);
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/* 3a. */
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cx25840_and_or(client, 0x15a, ~0x70, 0x00);
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/* 3b. */
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cx25840_and_or(client, 0x15b, ~0x1e, 0x06);
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/* 3c. */
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cx25840_and_or(client, 0x159, ~0x02, 0x02);
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/* 3d. */
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/* There should be a 10-us delay here, but since the
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i2c bus already has a 10-us delay we don't need to do
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anything */
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/* 3e. */
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cx25840_and_or(client, 0x159, ~0x02, 0x00);
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/* 3f. */
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cx25840_and_or(client, 0x159, ~0xc0, 0xc0);
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/* 3g. */
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cx25840_and_or(client, 0x159, ~0x01, 0x00);
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cx25840_and_or(client, 0x159, ~0x01, 0x01);
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/* 3h. */
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cx25840_and_or(client, 0x15b, ~0x1e, 0x10);
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}
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static void cx25840_initialize(struct i2c_client *client, int loadfw)
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{
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struct cx25840_state *state = i2c_get_clientdata(client);
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@ -319,8 +347,10 @@ static int set_input(struct i2c_client *client, enum cx25840_video_input vid_inp
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state->vid_input = vid_input;
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state->aud_input = aud_input;
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cx25840_audio_set_path(client);
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input_change(client);
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if (!state->is_cx25836) {
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cx25840_audio_set_path(client);
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input_change(client);
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}
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return 0;
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}
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@ -370,6 +400,7 @@ static int set_v4lstd(struct i2c_client *client, v4l2_std_id std)
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v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client)
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{
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struct cx25840_state *state = i2c_get_clientdata(client);
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/* check VID_FMT_SEL first */
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u8 fmt = cx25840_read(client, 0x400) & 0xf;
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@ -383,7 +414,7 @@ v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client)
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{
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/* if the audio std is A2-M, then this is the South Korean
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NTSC standard */
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if (cx25840_read(client, 0x805) == 2)
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if (!state->is_cx25836 && cx25840_read(client, 0x805) == 2)
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return V4L2_STD_NTSC_M_KR;
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return V4L2_STD_NTSC_M;
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}
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@ -456,6 +487,8 @@ static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
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case V4L2_CID_AUDIO_TREBLE:
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case V4L2_CID_AUDIO_BALANCE:
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case V4L2_CID_AUDIO_MUTE:
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if (state->is_cx25836)
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return -EINVAL;
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return cx25840_audio(client, VIDIOC_S_CTRL, ctrl);
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default:
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@ -490,6 +523,8 @@ static int get_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl)
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case V4L2_CID_AUDIO_TREBLE:
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case V4L2_CID_AUDIO_BALANCE:
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case V4L2_CID_AUDIO_MUTE:
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if (state->is_cx25836)
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return -EINVAL;
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return cx25840_audio(client, VIDIOC_G_CTRL, ctrl);
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default:
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return -EINVAL;
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@ -579,7 +614,7 @@ static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt)
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/* ----------------------------------------------------------------------- */
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static struct v4l2_queryctrl cx25840_qctrl[] = {
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static struct v4l2_queryctrl cx25836_qctrl[] = {
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{
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.id = V4L2_CID_BRIGHTNESS,
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.type = V4L2_CTRL_TYPE_INTEGER,
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@ -616,7 +651,11 @@ static struct v4l2_queryctrl cx25840_qctrl[] = {
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.step = 1,
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.default_value = 0,
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.flags = 0,
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}, {
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},
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};
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static struct v4l2_queryctrl cx25840_qctrl[] = {
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{
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.id = V4L2_CID_AUDIO_VOLUME,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Volume",
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@ -706,8 +745,8 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd,
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case VIDIOC_STREAMON:
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v4l_dbg(1, cx25840_debug, client, "enable output\n");
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cx25840_write(client, 0x115, 0x8c);
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cx25840_write(client, 0x116, 0x07);
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cx25840_write(client, 0x115, state->is_cx25836 ? 0x0c : 0x8c);
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cx25840_write(client, 0x116, state->is_cx25836 ? 0x04 : 0x07);
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break;
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case VIDIOC_STREAMOFF:
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@ -717,7 +756,9 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd,
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break;
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case VIDIOC_LOG_STATUS:
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log_status(client);
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log_video_status(client);
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if (!state->is_cx25836)
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log_audio_status(client);
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break;
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case VIDIOC_G_CTRL:
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@ -731,6 +772,14 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd,
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struct v4l2_queryctrl *qc = arg;
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int i;
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for (i = 0; i < ARRAY_SIZE(cx25836_qctrl); i++)
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if (qc->id && qc->id == cx25836_qctrl[i].id) {
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memcpy(qc, &cx25836_qctrl[i], sizeof(*qc));
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return 0;
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}
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if (state->is_cx25836)
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return -EINVAL;
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for (i = 0; i < ARRAY_SIZE(cx25840_qctrl); i++)
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if (qc->id && qc->id == cx25840_qctrl[i].id) {
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memcpy(qc, &cx25840_qctrl[i], sizeof(*qc));
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@ -760,31 +809,41 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd,
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return set_input(client, route->input, state->aud_input);
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case VIDIOC_INT_G_AUDIO_ROUTING:
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if (state->is_cx25836)
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return -EINVAL;
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route->input = state->aud_input;
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route->output = 0;
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break;
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case VIDIOC_INT_S_AUDIO_ROUTING:
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if (state->is_cx25836)
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return -EINVAL;
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return set_input(client, state->vid_input, route->input);
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case VIDIOC_S_FREQUENCY:
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input_change(client);
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if (!state->is_cx25836) {
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input_change(client);
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}
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break;
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case VIDIOC_G_TUNER:
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{
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u8 mode = cx25840_read(client, 0x804);
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u8 vpres = cx25840_read(client, 0x80a) & 0x10;
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u8 vpres = cx25840_read(client, 0x40e) & 0x20;
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u8 mode;
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int val = 0;
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if (state->radio)
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break;
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vt->signal = vpres ? 0xffff : 0x0;
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if (state->is_cx25836)
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break;
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vt->capability |=
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V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
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V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP;
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vt->signal = vpres ? 0xffff : 0x0;
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mode = cx25840_read(client, 0x804);
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/* get rxsubchans and audmode */
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if ((mode & 0xf) == 1)
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@ -804,7 +863,7 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd,
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}
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case VIDIOC_S_TUNER:
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if (state->radio)
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if (state->radio || state->is_cx25836)
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break;
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switch (vt->audmode) {
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@ -846,12 +905,14 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd,
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return set_v4lfmt(client, (struct v4l2_format *)arg);
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case VIDIOC_INT_RESET:
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cx25840_initialize(client, 0);
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if (state->is_cx25836)
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cx25836_initialize(client);
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else
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cx25840_initialize(client, 0);
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break;
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case VIDIOC_INT_G_CHIP_IDENT:
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*(enum v4l2_chip_ident *)arg =
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V4L2_IDENT_CX25840 + ((cx25840_read(client, 0x100) >> 4) & 0xf);
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*(enum v4l2_chip_ident *)arg = state->id;
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break;
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default:
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@ -870,6 +931,7 @@ static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
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{
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struct i2c_client *client;
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struct cx25840_state *state;
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enum v4l2_chip_ident id;
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u16 device_id;
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/* Check if the adapter supports the needed features
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@ -878,10 +940,11 @@ static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
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if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
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return 0;
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client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
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if (client == 0)
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state = kzalloc(sizeof(struct cx25840_state), GFP_KERNEL);
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if (state == 0)
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return -ENOMEM;
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client = &state->c;
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client->addr = address;
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client->adapter = adapter;
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client->driver = &i2c_driver_cx25840;
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@ -893,10 +956,18 @@ static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
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device_id |= cx25840_read(client, 0x100);
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/* The high byte of the device ID should be
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* 0x84 if chip is present */
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if ((device_id & 0xff00) != 0x8400) {
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* 0x83 for the cx2583x and 0x84 for the cx2584x */
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if ((device_id & 0xff00) == 0x8300) {
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id = V4L2_IDENT_CX25836 + ((device_id >> 4) & 0xf) - 6;
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state->is_cx25836 = 1;
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}
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else if ((device_id & 0xff00) == 0x8400) {
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id = V4L2_IDENT_CX25840 + ((device_id >> 4) & 0xf);
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state->is_cx25836 = 0;
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}
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else {
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v4l_dbg(1, cx25840_debug, client, "cx25840 not found\n");
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kfree(client);
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kfree(state);
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return 0;
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}
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@ -905,21 +976,18 @@ static int cx25840_detect_client(struct i2c_adapter *adapter, int address,
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(device_id & 0x0f) < 3 ? (device_id & 0x0f) + 1 : 3,
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address << 1, adapter->name);
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state = kmalloc(sizeof(struct cx25840_state), GFP_KERNEL);
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if (state == NULL) {
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kfree(client);
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return -ENOMEM;
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}
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i2c_set_clientdata(client, state);
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memset(state, 0, sizeof(struct cx25840_state));
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state->vid_input = CX25840_COMPOSITE7;
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state->aud_input = CX25840_AUDIO8;
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state->audclk_freq = 48000;
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state->pvr150_workaround = 0;
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state->audmode = V4L2_TUNER_MODE_LANG1;
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state->id = id;
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cx25840_initialize(client, 1);
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if (state->is_cx25836)
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cx25836_initialize(client);
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else
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cx25840_initialize(client, 1);
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i2c_attach_client(client);
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@ -944,7 +1012,6 @@ static int cx25840_detach_client(struct i2c_client *client)
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}
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kfree(state);
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kfree(client);
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return 0;
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}
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@ -977,7 +1044,7 @@ module_exit(m__exit);
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/* ----------------------------------------------------------------------- */
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static void log_status(struct i2c_client *client)
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static void log_video_status(struct i2c_client *client)
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{
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static const char *const fmt_strs[] = {
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"0x0",
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@ -989,9 +1056,36 @@ static void log_status(struct i2c_client *client)
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};
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struct cx25840_state *state = i2c_get_clientdata(client);
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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;
|
||||
|
||||
@ -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);
|
||||
|
||||
/* ----------------------------------------------------------------------- */
|
||||
|
||||
@ -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,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user