/* cx25840 - Conexant CX25840 audio/video decoder driver * * Copyright (C) 2004 Ulf Eklund * * Based on the saa7115 driver and on the first verison of Chris Kennedy's * cx25840 driver. * * Changes by Tyler Trafford <tatrafford@comcast.net> * - cleanup/rewrite for V4L2 API (2005) * * VBI support 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 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/videodev2.h> #include <linux/i2c.h> #include <media/audiochip.h> #include <media/v4l2-common.h> #include "cx25840.h" MODULE_DESCRIPTION("Conexant CX25840 audio/video decoder driver"); MODULE_AUTHOR("Ulf Eklund, Chris Kennedy, Hans Verkuil, Tyler Trafford"); MODULE_LICENSE("GPL"); static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END }; int debug = 0; module_param(debug, bool, 0644); MODULE_PARM_DESC(debug, "Debugging messages [0=Off (default) 1=On]"); I2C_CLIENT_INSMOD; /* ----------------------------------------------------------------------- */ int cx25840_write(struct i2c_client *client, u16 addr, u8 value) { u8 buffer[3]; buffer[0] = addr >> 8; buffer[1] = addr & 0xff; buffer[2] = value; return i2c_master_send(client, buffer, 3); } int cx25840_write4(struct i2c_client *client, u16 addr, u32 value) { u8 buffer[6]; buffer[0] = addr >> 8; buffer[1] = addr & 0xff; buffer[2] = value >> 24; buffer[3] = (value >> 16) & 0xff; buffer[4] = (value >> 8) & 0xff; buffer[5] = value & 0xff; return i2c_master_send(client, buffer, 6); } u8 cx25840_read(struct i2c_client * client, u16 addr) { u8 buffer[2]; buffer[0] = addr >> 8; buffer[1] = addr & 0xff; if (i2c_master_send(client, buffer, 2) < 2) return 0; if (i2c_master_recv(client, buffer, 1) < 1) return 0; return buffer[0]; } u32 cx25840_read4(struct i2c_client * client, u16 addr) { u8 buffer[4]; buffer[0] = addr >> 8; buffer[1] = addr & 0xff; if (i2c_master_send(client, buffer, 2) < 2) return 0; if (i2c_master_recv(client, buffer, 4) < 4) return 0; return (buffer[0] << 24) | (buffer[1] << 16) | (buffer[2] << 8) | buffer[3]; } int cx25840_and_or(struct i2c_client *client, u16 addr, u8 and_mask, u8 or_value) { return cx25840_write(client, addr, (cx25840_read(client, addr) & and_mask) | or_value); } /* ----------------------------------------------------------------------- */ 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 init_dll1(struct i2c_client *client) { /* This is the Hauppauge sequence used to * initialize the Delay Lock Loop 1 (ADC DLL). */ cx25840_write(client, 0x159, 0x23); cx25840_write(client, 0x15a, 0x87); cx25840_write(client, 0x15b, 0x06); cx25840_write(client, 0x159, 0xe1); cx25840_write(client, 0x15a, 0x86); cx25840_write(client, 0x159, 0xe0); cx25840_write(client, 0x159, 0xe1); cx25840_write(client, 0x15b, 0x10); } static void init_dll2(struct i2c_client *client) { /* This is the Hauppauge sequence used to * initialize the Delay Lock Loop 2 (ADC DLL). */ cx25840_write(client, 0x15d, 0xe3); cx25840_write(client, 0x15e, 0x86); cx25840_write(client, 0x15f, 0x06); cx25840_write(client, 0x15d, 0xe1); cx25840_write(client, 0x15d, 0xe0); cx25840_write(client, 0x15d, 0xe1); } static void cx25840_initialize(struct i2c_client *client, int loadfw) { struct cx25840_state *state = i2c_get_clientdata(client); /* datasheet startup in numbered steps, refer to page 3-77 */ /* 2. */ cx25840_and_or(client, 0x803, ~0x10, 0x00); /* The default of this register should be 4, but I get 0 instead. * Set this register to 4 manually. */ cx25840_write(client, 0x000, 0x04); /* 3. */ init_dll1(client); init_dll2(client); cx25840_write(client, 0x136, 0x0a); /* 4. */ cx25840_write(client, 0x13c, 0x01); cx25840_write(client, 0x13c, 0x00); /* 5. */ if (loadfw) cx25840_loadfw(client); /* 6. */ cx25840_write(client, 0x115, 0x8c); cx25840_write(client, 0x116, 0x07); cx25840_write(client, 0x118, 0x02); /* 7. */ cx25840_write(client, 0x4a5, 0x80); cx25840_write(client, 0x4a5, 0x00); cx25840_write(client, 0x402, 0x00); /* 8. */ cx25840_write(client, 0x401, 0x18); cx25840_write(client, 0x4a2, 0x10); cx25840_write(client, 0x402, 0x04); /* 10. */ cx25840_write(client, 0x8d3, 0x1f); cx25840_write(client, 0x8e3, 0x03); cx25840_vbi_setup(client); /* trial and error says these are needed to get audio */ cx25840_write(client, 0x914, 0xa0); cx25840_write(client, 0x918, 0xa0); cx25840_write(client, 0x919, 0x01); /* stereo prefered */ cx25840_write(client, 0x809, 0x04); /* AC97 shift */ cx25840_write(client, 0x8cf, 0x0f); /* (re)set input */ set_input(client, state->vid_input, state->aud_input); /* start microcontroller */ cx25840_and_or(client, 0x803, ~0x10, 0x10); } /* ----------------------------------------------------------------------- */ static void input_change(struct i2c_client *client) { struct cx25840_state *state = i2c_get_clientdata(client); v4l2_std_id std = cx25840_get_v4lstd(client); /* 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) { /* NTSC */ if (state->pvr150_workaround) { /* Certain Hauppauge PVR150 models have a hardware bug that causes audio to drop out. For these models the audio standard must be set explicitly. To be precise: it affects cards with tuner models 85, 99 and 112 (model numbers from tveeprom). */ if (std == V4L2_STD_NTSC_M_JP) { /* Japan uses EIAJ audio standard */ cx25840_write(client, 0x808, 0x2f); } else { /* Others use the BTSC audio standard */ cx25840_write(client, 0x808, 0x1f); } /* South Korea uses the A2-M (aka Zweiton M) audio standard, and should set 0x808 to 0x3f, but I don't know how to detect this. */ } else if (std == V4L2_STD_NTSC_M_JP) { /* Japan uses EIAJ audio standard */ cx25840_write(client, 0x808, 0xf7); } else { /* Others use the BTSC audio standard */ cx25840_write(client, 0x808, 0xf6); } /* South Korea uses the A2-M (aka Zweiton M) audio standard, and should set 0x808 to 0xf8, but I don't know how to detect this. */ cx25840_write(client, 0x80b, 0x00); } if (cx25840_read(client, 0x803) & 0x10) { /* restart audio decoder microcontroller */ cx25840_and_or(client, 0x803, ~0x10, 0x00); cx25840_and_or(client, 0x803, ~0x10, 0x10); } } static int set_input(struct i2c_client *client, enum cx25840_video_input vid_input, enum cx25840_audio_input aud_input) { struct cx25840_state *state = i2c_get_clientdata(client); u8 is_composite = (vid_input >= CX25840_COMPOSITE1 && vid_input <= CX25840_COMPOSITE8); u8 reg; v4l_dbg(1, client, "decoder set video input %d, audio input %d\n", vid_input, aud_input); if (is_composite) { reg = 0xf0 + (vid_input - CX25840_COMPOSITE1); } else { int luma = vid_input & 0xf0; int chroma = vid_input & 0xf00; if ((vid_input & ~0xff0) || luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA4 || chroma < CX25840_SVIDEO_CHROMA4 || chroma > CX25840_SVIDEO_CHROMA8) { v4l_err(client, "0x%04x is not a valid video input!\n", vid_input); return -EINVAL; } reg = 0xf0 + ((luma - CX25840_SVIDEO_LUMA1) >> 4); if (chroma >= CX25840_SVIDEO_CHROMA7) { reg &= 0x3f; reg |= (chroma - CX25840_SVIDEO_CHROMA7) >> 2; } else { reg &= 0xcf; reg |= (chroma - CX25840_SVIDEO_CHROMA4) >> 4; } } switch (aud_input) { case CX25840_AUDIO_SERIAL: /* do nothing, use serial audio input */ break; case CX25840_AUDIO4: reg &= ~0x30; break; case CX25840_AUDIO5: reg &= ~0x30; reg |= 0x10; break; case CX25840_AUDIO6: reg &= ~0x30; reg |= 0x20; break; case CX25840_AUDIO7: reg &= ~0xc0; break; case CX25840_AUDIO8: reg &= ~0xc0; reg |= 0x40; break; default: v4l_err(client, "0x%04x is not a valid audio input!\n", aud_input); return -EINVAL; } cx25840_write(client, 0x103, reg); /* Set INPUT_MODE to Composite (0) or S-Video (1) */ cx25840_and_or(client, 0x401, ~0x6, is_composite ? 0 : 0x02); /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */ cx25840_and_or(client, 0x102, ~0x2, (reg & 0x80) == 0 ? 2 : 0); /* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */ if ((reg & 0xc0) != 0xc0 && (reg & 0x30) != 0x30) cx25840_and_or(client, 0x102, ~0x4, 4); else cx25840_and_or(client, 0x102, ~0x4, 0); state->vid_input = vid_input; state->aud_input = aud_input; cx25840_audio_set_path(client); input_change(client); return 0; } /* ----------------------------------------------------------------------- */ static int set_v4lstd(struct i2c_client *client, v4l2_std_id std) { u8 fmt=0; /* zero is autodetect */ /* First tests should be against specific std */ if (std & V4L2_STD_NTSC_M_JP) { fmt=0x2; } else if (std & V4L2_STD_NTSC_443) { fmt=0x3; } else if (std & V4L2_STD_PAL_M) { fmt=0x5; } else if (std & V4L2_STD_PAL_N) { fmt=0x6; } else if (std & V4L2_STD_PAL_Nc) { fmt=0x7; } else if (std & V4L2_STD_PAL_60) { fmt=0x8; } else { /* Then, test against generic ones */ if (std & V4L2_STD_NTSC) { fmt=0x1; } else if (std & V4L2_STD_PAL) { fmt=0x4; } else if (std & V4L2_STD_SECAM) { fmt=0xc; } } cx25840_and_or(client, 0x400, ~0xf, fmt); cx25840_vbi_setup(client); return 0; } v4l2_std_id cx25840_get_v4lstd(struct i2c_client * client) { /* check VID_FMT_SEL first */ u8 fmt = cx25840_read(client, 0x400) & 0xf; if (!fmt) { /* check AFD_FMT_STAT if set to autodetect */ fmt = cx25840_read(client, 0x40d) & 0xf; } switch (fmt) { case 0x1: return V4L2_STD_NTSC_M; case 0x2: return V4L2_STD_NTSC_M_JP; case 0x3: return V4L2_STD_NTSC_443; case 0x4: return V4L2_STD_PAL; case 0x5: return V4L2_STD_PAL_M; case 0x6: return V4L2_STD_PAL_N; case 0x7: return V4L2_STD_PAL_Nc; case 0x8: return V4L2_STD_PAL_60; case 0xc: return V4L2_STD_SECAM; default: return V4L2_STD_UNKNOWN; } } /* ----------------------------------------------------------------------- */ static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl) { struct cx25840_state *state = i2c_get_clientdata(client); switch (ctrl->id) { case CX25840_CID_ENABLE_PVR150_WORKAROUND: state->pvr150_workaround = ctrl->value; set_input(client, state->vid_input, state->aud_input); break; case V4L2_CID_BRIGHTNESS: if (ctrl->value < 0 || ctrl->value > 255) { v4l_err(client, "invalid brightness setting %d\n", ctrl->value); return -ERANGE; } cx25840_write(client, 0x414, ctrl->value - 128); break; case V4L2_CID_CONTRAST: if (ctrl->value < 0 || ctrl->value > 127) { v4l_err(client, "invalid contrast setting %d\n", ctrl->value); return -ERANGE; } cx25840_write(client, 0x415, ctrl->value << 1); break; case V4L2_CID_SATURATION: if (ctrl->value < 0 || ctrl->value > 127) { v4l_err(client, "invalid saturation setting %d\n", ctrl->value); return -ERANGE; } cx25840_write(client, 0x420, ctrl->value << 1); cx25840_write(client, 0x421, ctrl->value << 1); break; case V4L2_CID_HUE: if (ctrl->value < -127 || ctrl->value > 127) { v4l_err(client, "invalid hue setting %d\n", ctrl->value); return -ERANGE; } cx25840_write(client, 0x422, ctrl->value); break; case V4L2_CID_AUDIO_VOLUME: case V4L2_CID_AUDIO_BASS: case V4L2_CID_AUDIO_TREBLE: case V4L2_CID_AUDIO_BALANCE: case V4L2_CID_AUDIO_MUTE: return cx25840_audio(client, VIDIOC_S_CTRL, ctrl); default: return -EINVAL; } return 0; } static int get_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl) { struct cx25840_state *state = i2c_get_clientdata(client); switch (ctrl->id) { case CX25840_CID_ENABLE_PVR150_WORKAROUND: ctrl->value = state->pvr150_workaround; break; case V4L2_CID_BRIGHTNESS: ctrl->value = cx25840_read(client, 0x414) + 128; break; case V4L2_CID_CONTRAST: ctrl->value = cx25840_read(client, 0x415) >> 1; break; case V4L2_CID_SATURATION: ctrl->value = cx25840_read(client, 0x420) >> 1; break; case V4L2_CID_HUE: ctrl->value = cx25840_read(client, 0x422); break; case V4L2_CID_AUDIO_VOLUME: case V4L2_CID_AUDIO_BASS: case V4L2_CID_AUDIO_TREBLE: case V4L2_CID_AUDIO_BALANCE: case V4L2_CID_AUDIO_MUTE: return cx25840_audio(client, VIDIOC_G_CTRL, ctrl); default: return -EINVAL; } return 0; } /* ----------------------------------------------------------------------- */ static int get_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt) { switch (fmt->type) { case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: return cx25840_vbi(client, VIDIOC_G_FMT, fmt); default: return -EINVAL; } return 0; } static int set_v4lfmt(struct i2c_client *client, struct v4l2_format *fmt) { struct v4l2_pix_format *pix; int HSC, VSC, Vsrc, Hsrc, filter, Vlines; int is_pal = !(cx25840_get_v4lstd(client) & V4L2_STD_NTSC); switch (fmt->type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: pix = &(fmt->fmt.pix); Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4; Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4; Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4; Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4; Vlines = pix->height + (is_pal ? 4 : 7); if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) || (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) { v4l_err(client, "%dx%d is not a valid size!\n", pix->width, pix->height); return -ERANGE; } HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20); VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9)); VSC &= 0x1fff; if (pix->width >= 385) filter = 0; else if (pix->width > 192) filter = 1; else if (pix->width > 96) filter = 2; else filter = 3; v4l_dbg(1, client, "decoder set size %dx%d -> scale %ux%u\n", pix->width, pix->height, HSC, VSC); /* HSCALE=HSC */ cx25840_write(client, 0x418, HSC & 0xff); cx25840_write(client, 0x419, (HSC >> 8) & 0xff); cx25840_write(client, 0x41a, HSC >> 16); /* VSCALE=VSC */ cx25840_write(client, 0x41c, VSC & 0xff); cx25840_write(client, 0x41d, VSC >> 8); /* VS_INTRLACE=1 VFILT=filter */ cx25840_write(client, 0x41e, 0x8 | filter); break; case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: return cx25840_vbi(client, VIDIOC_S_FMT, fmt); case V4L2_BUF_TYPE_VBI_CAPTURE: return cx25840_vbi(client, VIDIOC_S_FMT, fmt); default: return -EINVAL; } return 0; } /* ----------------------------------------------------------------------- */ 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 = 255, .step = 1, .default_value = 64, .flags = 0, }, { .id = V4L2_CID_SATURATION, .type = V4L2_CTRL_TYPE_INTEGER, .name = "Saturation", .minimum = 0, .maximum = 255, .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) { struct cx25840_state *state = i2c_get_clientdata(client); struct v4l2_tuner *vt = arg; switch (cmd) { #ifdef CONFIG_VIDEO_ADV_DEBUG /* ioctls to allow direct access to the * cx25840 registers for testing */ case VIDIOC_INT_G_REGISTER: { struct v4l2_register *reg = arg; if (reg->i2c_id != I2C_DRIVERID_CX25840) return -EINVAL; reg->val = cx25840_read(client, reg->reg & 0x0fff); break; } case VIDIOC_INT_S_REGISTER: { struct v4l2_register *reg = arg; if (reg->i2c_id != I2C_DRIVERID_CX25840) return -EINVAL; if (!capable(CAP_SYS_ADMIN)) return -EPERM; cx25840_write(client, reg->reg & 0x0fff, reg->val & 0xff); break; } #endif case VIDIOC_INT_DECODE_VBI_LINE: return cx25840_vbi(client, cmd, arg); case VIDIOC_INT_AUDIO_CLOCK_FREQ: return cx25840_audio(client, cmd, arg); case VIDIOC_STREAMON: v4l_dbg(1, client, "enable output\n"); cx25840_write(client, 0x115, 0x8c); cx25840_write(client, 0x116, 0x07); break; case VIDIOC_STREAMOFF: v4l_dbg(1, client, "disable output\n"); cx25840_write(client, 0x115, 0x00); cx25840_write(client, 0x116, 0x00); break; case VIDIOC_LOG_STATUS: log_status(client); break; case VIDIOC_G_CTRL: return get_v4lctrl(client, (struct v4l2_control *)arg); case VIDIOC_S_CTRL: return set_v4lctrl(client, (struct v4l2_control *)arg); 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; } return -EINVAL; } case VIDIOC_G_STD: *(v4l2_std_id *)arg = cx25840_get_v4lstd(client); break; case VIDIOC_S_STD: state->radio = 0; return set_v4lstd(client, *(v4l2_std_id *)arg); case AUDC_SET_RADIO: state->radio = 1; break; case VIDIOC_G_INPUT: *(int *)arg = state->vid_input; break; case VIDIOC_S_INPUT: return set_input(client, *(enum cx25840_video_input *)arg, state->aud_input); case VIDIOC_S_AUDIO: { struct v4l2_audio *input = arg; return set_input(client, state->vid_input, input->index); } case VIDIOC_G_AUDIO: { struct v4l2_audio *input = arg; memset(input, 0, sizeof(*input)); input->index = state->aud_input; break; } case VIDIOC_S_FREQUENCY: input_change(client); break; case VIDIOC_G_TUNER: { u8 mode = cx25840_read(client, 0x804); u8 pref = cx25840_read(client, 0x809) & 0xf; u8 vpres = cx25840_read(client, 0x80a) & 0x10; int val = 0; if (state->radio) break; vt->capability |= V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP; vt->signal = vpres ? 0xffff : 0x0; /* get rxsubchans and audmode */ if ((mode & 0xf) == 1) val |= V4L2_TUNER_SUB_STEREO; else val |= V4L2_TUNER_SUB_MONO; if (mode == 2 || mode == 4) val |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; if (mode & 0x10) val |= V4L2_TUNER_SUB_SAP; vt->rxsubchans = val; switch (pref) { case 0: vt->audmode = V4L2_TUNER_MODE_MONO; break; case 1: case 2: vt->audmode = V4L2_TUNER_MODE_LANG2; break; case 4: default: vt->audmode = V4L2_TUNER_MODE_STEREO; } break; } case VIDIOC_S_TUNER: switch (vt->audmode) { case V4L2_TUNER_MODE_MONO: case V4L2_TUNER_MODE_LANG1: /* Force PREF_MODE to MONO */ cx25840_and_or(client, 0x809, ~0xf, 0x00); break; case V4L2_TUNER_MODE_STEREO: /* Force PREF_MODE to STEREO */ cx25840_and_or(client, 0x809, ~0xf, 0x04); break; case V4L2_TUNER_MODE_LANG2: /* Force PREF_MODE to LANG2 */ cx25840_and_or(client, 0x809, ~0xf, 0x01); break; } break; case VIDIOC_G_FMT: return get_v4lfmt(client, (struct v4l2_format *)arg); case VIDIOC_S_FMT: return set_v4lfmt(client, (struct v4l2_format *)arg); case VIDIOC_INT_RESET: 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); break; default: return -EINVAL; } return 0; } /* ----------------------------------------------------------------------- */ static struct i2c_driver i2c_driver_cx25840; static int cx25840_detect_client(struct i2c_adapter *adapter, int address, int kind) { struct i2c_client *client; struct cx25840_state *state; u16 device_id; /* Check if the adapter supports the needed features * Not until kernel version 2.6.11 did the bit-algo * correctly report that it would do an I2C-level xfer */ if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) return 0; client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL); if (client == 0) return -ENOMEM; memset(client, 0, sizeof(struct i2c_client)); client->addr = address; client->adapter = adapter; client->driver = &i2c_driver_cx25840; snprintf(client->name, sizeof(client->name) - 1, "cx25840"); v4l_dbg(1, client, "detecting cx25840 client on address 0x%x\n", address << 1); device_id = cx25840_read(client, 0x101) << 8; 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) { v4l_dbg(1, client, "cx25840 not found\n"); kfree(client); return 0; } v4l_info(client, "cx25%3x-2%x found @ 0x%x (%s)\n", (device_id & 0xfff0) >> 4, (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; cx25840_initialize(client, 1); i2c_attach_client(client); return 0; } static int cx25840_attach_adapter(struct i2c_adapter *adapter) { if (adapter->class & I2C_CLASS_TV_ANALOG) return i2c_probe(adapter, &addr_data, &cx25840_detect_client); return 0; } static int cx25840_detach_client(struct i2c_client *client) { struct cx25840_state *state = i2c_get_clientdata(client); int err; err = i2c_detach_client(client); if (err) { return err; } kfree(state); kfree(client); return 0; } /* ----------------------------------------------------------------------- */ static struct i2c_driver i2c_driver_cx25840 = { .driver = { .name = "cx25840", }, .id = I2C_DRIVERID_CX25840, .attach_adapter = cx25840_attach_adapter, .detach_client = cx25840_detach_client, .command = cx25840_command, }; static int __init m__init(void) { return i2c_add_driver(&i2c_driver_cx25840); } static void __exit m__exit(void) { i2c_del_driver(&i2c_driver_cx25840); } module_init(m__init); module_exit(m__exit); /* ----------------------------------------------------------------------- */ static void log_status(struct i2c_client *client) { static const char *const fmt_strs[] = { "0x0", "NTSC-M", "NTSC-J", "NTSC-4.43", "PAL-BDGHI", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60", "0x9", "0xA", "0xB", "SECAM", "0xD", "0xE", "0xF" }; 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 download_ctl = cx25840_read(client, 0x803); u8 mod_det_stat0 = cx25840_read(client, 0x804); u8 mod_det_stat1 = cx25840_read(client, 0x805); u8 audio_config = cx25840_read(client, 0x808); 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; case 0x02: p = "dual"; break; case 0x04: p = "tri"; break; case 0x10: p = "mono with SAP"; break; case 0x11: p = "stereo with SAP"; break; case 0x12: p = "dual with SAP"; break; case 0x14: p = "tri with SAP"; break; case 0xfe: p = "forced mode"; break; default: p = "not defined"; } v4l_info(client, "Detected audio mode: %s\n", p); switch (mod_det_stat1) { case 0x00: p = "not defined"; break; case 0x01: p = "EIAJ"; break; case 0x02: p = "A2-M"; break; case 0x03: p = "A2-BG"; break; case 0x04: p = "A2-DK1"; break; case 0x05: p = "A2-DK2"; break; case 0x06: p = "A2-DK3"; break; case 0x07: p = "A1 (6.0 MHz FM Mono)"; break; case 0x08: p = "AM-L"; break; case 0x09: p = "NICAM-BG"; break; case 0x0a: p = "NICAM-DK"; break; case 0x0b: p = "NICAM-I"; break; case 0x0c: p = "NICAM-L"; break; case 0x0d: p = "BTSC/EIAJ/A2-M Mono (4.5 MHz FMMono)"; break; case 0x0e: p = "IF FM Radio"; break; case 0x0f: p = "BTSC"; break; case 0x10: p = "high-deviation FM"; break; case 0x11: p = "very high-deviation FM"; break; case 0xfd: p = "unknown audio standard"; break; case 0xfe: p = "forced audio standard"; break; case 0xff: p = "no detected audio standard"; break; default: p = "not defined"; } v4l_info(client, "Detected audio standard: %s\n", p); v4l_info(client, "Audio muted: %s\n", (mute_ctl & 0x2) ? "yes" : "no"); v4l_info(client, "Audio microcontroller: %s\n", (download_ctl & 0x10) ? "running" : "stopped"); switch (audio_config >> 4) { case 0x00: p = "undefined"; break; case 0x01: p = "BTSC"; break; case 0x02: p = "EIAJ"; break; case 0x03: p = "A2-M"; break; case 0x04: p = "A2-BG"; break; case 0x05: p = "A2-DK1"; break; case 0x06: p = "A2-DK2"; break; case 0x07: p = "A2-DK3"; break; case 0x08: p = "A1 (6.0 MHz FM Mono)"; break; case 0x09: p = "AM-L"; break; case 0x0a: p = "NICAM-BG"; break; case 0x0b: p = "NICAM-DK"; break; case 0x0c: p = "NICAM-I"; break; case 0x0d: p = "NICAM-L"; break; case 0x0e: p = "FM radio"; break; case 0x0f: p = "automatic detection"; break; default: p = "undefined"; } v4l_info(client, "Configured audio standard: %s\n", p); if ((audio_config >> 4) < 0xF) { switch (audio_config & 0xF) { case 0x00: p = "MONO1 (LANGUAGE A/Mono L+R channel for BTSC, EIAJ, A2)"; break; case 0x01: p = "MONO2 (LANGUAGE B)"; break; case 0x02: p = "MONO3 (STEREO forced MONO)"; break; case 0x03: p = "MONO4 (NICAM ANALOG-Language C/Analog Fallback)"; break; case 0x04: p = "STEREO"; break; case 0x05: p = "DUAL1 (AB)"; break; case 0x06: p = "DUAL2 (AC) (FM)"; break; case 0x07: p = "DUAL3 (BC) (FM)"; break; case 0x08: p = "DUAL4 (AC) (AM)"; break; case 0x09: p = "DUAL5 (BC) (AM)"; break; case 0x0a: p = "SAP"; break; default: p = "undefined"; } v4l_info(client, "Configured audio mode: %s\n", p); } else { switch (audio_config & 0xF) { case 0x00: p = "BG"; break; case 0x01: p = "DK1"; break; case 0x02: p = "DK2"; break; case 0x03: p = "DK3"; break; case 0x04: p = "I"; break; case 0x05: p = "L"; break; case 0x06: p = "BTSC"; break; case 0x07: p = "EIAJ"; break; case 0x08: p = "A2-M"; break; case 0x09: p = "FM Radio"; break; case 0x0f: p = "automatic standard and mode detection"; break; default: p = "undefined"; } 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; case 2: p = "language C"; break; case 3: p = "analog fallback"; break; case 4: p = "stereo"; break; case 5: p = "language AC"; break; case 6: p = "language BC"; break; case 7: p = "language AB"; break; default: p = "undefined"; } v4l_info(client, "Preferred audio mode: %s\n", p); if ((audio_config & 0xf) == 0xf) { switch ((afc0 >> 3) & 0x3) { case 0: p = "system DK"; break; case 1: p = "system L"; break; case 2: p = "autodetect"; break; default: p = "undefined"; } v4l_info(client, "Selected 65 MHz format: %s\n", p); switch (afc0 & 0x7) { case 0: p = "chroma"; break; case 1: p = "BTSC"; break; case 2: p = "EIAJ"; break; case 3: p = "A2-M"; break; case 4: p = "autodetect"; break; default: p = "undefined"; } v4l_info(client, "Selected 45 MHz format: %s\n", p); } }