diff options
Diffstat (limited to 'drivers/media/video/cx25840/cx25840-core.c')
-rw-r--r-- | drivers/media/video/cx25840/cx25840-core.c | 306 |
1 files changed, 152 insertions, 154 deletions
diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c index a961bb2ab0f..5c2036b40ea 100644 --- a/drivers/media/video/cx25840/cx25840-core.c +++ b/drivers/media/video/cx25840/cx25840-core.c @@ -10,6 +10,9 @@ * * VBI support by Hans Verkuil <hverkuil@xs4all.nl>. * + * NTSC sliced VBI support by Christopher Neufeld <television@cneufeld.ca> + * with additional fixes by Hans Verkuil <hverkuil@xs4all.nl>. + * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 @@ -43,7 +46,7 @@ MODULE_LICENSE("GPL"); static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END }; -static int cx25840_debug; +int cx25840_debug; module_param_named(debug,cx25840_debug, int, 0644); @@ -105,7 +108,7 @@ 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 +120,8 @@ 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 +151,33 @@ 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); @@ -220,17 +251,7 @@ static void input_change(struct i2c_client *client) cx25840_and_or(client, 0x401, ~0x60, 0); cx25840_and_or(client, 0x401, ~0x60, 0x60); - /* Note: perhaps V4L2_STD_PAL_M should be handled as V4L2_STD_NTSC - instead of V4L2_STD_PAL. Someone needs to test this. */ - if (std & V4L2_STD_PAL) { - /* Follow tuner change procedure for PAL */ - cx25840_write(client, 0x808, 0xff); - cx25840_write(client, 0x80b, 0x10); - } else if (std & V4L2_STD_SECAM) { - /* Select autodetect for SECAM */ - cx25840_write(client, 0x808, 0xff); - cx25840_write(client, 0x80b, 0x10); - } else if (std & V4L2_STD_NTSC) { + if (std & V4L2_STD_525_60) { /* Certain Hauppauge PVR150 models have a hardware bug that causes audio to drop out. For these models the audio standard must be set explicitly. @@ -249,6 +270,14 @@ static void input_change(struct i2c_client *client) cx25840_write(client, 0x808, hw_fix ? 0x1f : 0xf6); } cx25840_write(client, 0x80b, 0x00); + } else if (std & V4L2_STD_PAL) { + /* Follow tuner change procedure for PAL */ + cx25840_write(client, 0x808, 0xff); + cx25840_write(client, 0x80b, 0x10); + } else if (std & V4L2_STD_SECAM) { + /* Select autodetect for SECAM */ + cx25840_write(client, 0x808, 0xff); + cx25840_write(client, 0x80b, 0x10); } if (cx25840_read(client, 0x803) & 0x10) { @@ -319,8 +348,10 @@ 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; } @@ -354,6 +385,8 @@ static int set_v4lstd(struct i2c_client *client, v4l2_std_id std) } } + v4l_dbg(1, cx25840_debug, client, "changing video std to fmt %i\n",fmt); + /* Follow step 9 of section 3.16 in the cx25840 datasheet. Without this PAL may display a vertical ghosting effect. This happens for example with the Yuan MPC622. */ @@ -370,6 +403,7 @@ 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 +417,7 @@ 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 +490,8 @@ 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 +526,8 @@ 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; @@ -579,91 +617,6 @@ static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt) /* ----------------------------------------------------------------------- */ -static struct v4l2_queryctrl cx25840_qctrl[] = { - { - .id = V4L2_CID_BRIGHTNESS, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Brightness", - .minimum = 0, - .maximum = 255, - .step = 1, - .default_value = 128, - .flags = 0, - }, { - .id = V4L2_CID_CONTRAST, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Contrast", - .minimum = 0, - .maximum = 127, - .step = 1, - .default_value = 64, - .flags = 0, - }, { - .id = V4L2_CID_SATURATION, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Saturation", - .minimum = 0, - .maximum = 127, - .step = 1, - .default_value = 64, - .flags = 0, - }, { - .id = V4L2_CID_HUE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Hue", - .minimum = -128, - .maximum = 127, - .step = 1, - .default_value = 0, - .flags = 0, - }, { - .id = V4L2_CID_AUDIO_VOLUME, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Volume", - .minimum = 0, - .maximum = 65535, - .step = 65535/100, - .default_value = 58880, - .flags = 0, - }, { - .id = V4L2_CID_AUDIO_BALANCE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Balance", - .minimum = 0, - .maximum = 65535, - .step = 65535/100, - .default_value = 32768, - .flags = 0, - }, { - .id = V4L2_CID_AUDIO_MUTE, - .type = V4L2_CTRL_TYPE_BOOLEAN, - .name = "Mute", - .minimum = 0, - .maximum = 1, - .step = 1, - .default_value = 1, - .flags = 0, - }, { - .id = V4L2_CID_AUDIO_BASS, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Bass", - .minimum = 0, - .maximum = 65535, - .step = 65535/100, - .default_value = 32768, - }, { - .id = V4L2_CID_AUDIO_TREBLE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Treble", - .minimum = 0, - .maximum = 65535, - .step = 65535/100, - .default_value = 32768, - }, -}; - -/* ----------------------------------------------------------------------- */ - static int cx25840_command(struct i2c_client *client, unsigned int cmd, void *arg) { @@ -706,8 +659,8 @@ 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 +670,9 @@ 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: @@ -729,13 +684,29 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd, case VIDIOC_QUERYCTRL: { struct v4l2_queryctrl *qc = arg; - int i; - 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)); - return 0; - } + switch (qc->id) { + case V4L2_CID_BRIGHTNESS: + case V4L2_CID_CONTRAST: + case V4L2_CID_SATURATION: + case V4L2_CID_HUE: + return v4l2_ctrl_query_fill_std(qc); + default: + break; + } + if (state->is_cx25836) + return -EINVAL; + + switch (qc->id) { + case V4L2_CID_AUDIO_VOLUME: + case V4L2_CID_AUDIO_MUTE: + case V4L2_CID_AUDIO_BALANCE: + case V4L2_CID_AUDIO_BASS: + case V4L2_CID_AUDIO_TREBLE: + return v4l2_ctrl_query_fill_std(qc); + default: + return -EINVAL; + } return -EINVAL; } @@ -760,31 +731,41 @@ 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 +785,7 @@ 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 +827,14 @@ 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 +853,7 @@ 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 +862,11 @@ 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 +878,18 @@ 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 +898,19 @@ 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->vbi_line_offset = 8; + 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 +935,6 @@ static int cx25840_detach_client(struct i2c_client *client) } kfree(state); - kfree(client); return 0; } @@ -977,7 +967,7 @@ 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 +979,36 @@ 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 +1016,9 @@ 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 +1118,12 @@ 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; |