diff options
Diffstat (limited to 'drivers/media/dvb-frontends/au8522_decoder.c')
| -rw-r--r-- | drivers/media/dvb-frontends/au8522_decoder.c | 785 |
1 files changed, 785 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/au8522_decoder.c b/drivers/media/dvb-frontends/au8522_decoder.c new file mode 100644 index 000000000..e4f99bd46 --- /dev/null +++ b/drivers/media/dvb-frontends/au8522_decoder.c @@ -0,0 +1,785 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Auvitek AU8522 QAM/8VSB demodulator driver and video decoder + * + * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org> + * Copyright (C) 2005-2008 Auvitek International, Ltd. + */ + +/* Developer notes: + * + * Enough is implemented here for CVBS and S-Video inputs, but the actual + * analog demodulator code isn't implemented (not needed for xc5000 since it + * has its own demodulator and outputs CVBS) + * + */ + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/videodev2.h> +#include <linux/i2c.h> +#include <linux/delay.h> +#include <media/v4l2-common.h> +#include <media/v4l2-device.h> +#include "au8522.h" +#include "au8522_priv.h" + +MODULE_AUTHOR("Devin Heitmueller"); +MODULE_LICENSE("GPL"); + +static int au8522_analog_debug; + + +module_param_named(analog_debug, au8522_analog_debug, int, 0644); + +MODULE_PARM_DESC(analog_debug, + "Analog debugging messages [0=Off (default) 1=On]"); + +struct au8522_register_config { + u16 reg_name; + u8 reg_val[8]; +}; + + +/* Video Decoder Filter Coefficients + The values are as follows from left to right + 0="ATV RF" 1="ATV RF13" 2="CVBS" 3="S-Video" 4="PAL" 5=CVBS13" 6="SVideo13" +*/ +static const struct au8522_register_config filter_coef[] = { + {AU8522_FILTER_COEF_R410, {0x25, 0x00, 0x25, 0x25, 0x00, 0x00, 0x00} }, + {AU8522_FILTER_COEF_R411, {0x20, 0x00, 0x20, 0x20, 0x00, 0x00, 0x00} }, + {AU8522_FILTER_COEF_R412, {0x03, 0x00, 0x03, 0x03, 0x00, 0x00, 0x00} }, + {AU8522_FILTER_COEF_R413, {0xe6, 0x00, 0xe6, 0xe6, 0x00, 0x00, 0x00} }, + {AU8522_FILTER_COEF_R414, {0x40, 0x00, 0x40, 0x40, 0x00, 0x00, 0x00} }, + {AU8522_FILTER_COEF_R415, {0x1b, 0x00, 0x1b, 0x1b, 0x00, 0x00, 0x00} }, + {AU8522_FILTER_COEF_R416, {0xc0, 0x00, 0xc0, 0x04, 0x00, 0x00, 0x00} }, + {AU8522_FILTER_COEF_R417, {0x04, 0x00, 0x04, 0x04, 0x00, 0x00, 0x00} }, + {AU8522_FILTER_COEF_R418, {0x8c, 0x00, 0x8c, 0x8c, 0x00, 0x00, 0x00} }, + {AU8522_FILTER_COEF_R419, {0xa0, 0x40, 0xa0, 0xa0, 0x40, 0x40, 0x40} }, + {AU8522_FILTER_COEF_R41A, {0x21, 0x09, 0x21, 0x21, 0x09, 0x09, 0x09} }, + {AU8522_FILTER_COEF_R41B, {0x6c, 0x38, 0x6c, 0x6c, 0x38, 0x38, 0x38} }, + {AU8522_FILTER_COEF_R41C, {0x03, 0xff, 0x03, 0x03, 0xff, 0xff, 0xff} }, + {AU8522_FILTER_COEF_R41D, {0xbf, 0xc7, 0xbf, 0xbf, 0xc7, 0xc7, 0xc7} }, + {AU8522_FILTER_COEF_R41E, {0xa0, 0xdf, 0xa0, 0xa0, 0xdf, 0xdf, 0xdf} }, + {AU8522_FILTER_COEF_R41F, {0x10, 0x06, 0x10, 0x10, 0x06, 0x06, 0x06} }, + {AU8522_FILTER_COEF_R420, {0xae, 0x30, 0xae, 0xae, 0x30, 0x30, 0x30} }, + {AU8522_FILTER_COEF_R421, {0xc4, 0x01, 0xc4, 0xc4, 0x01, 0x01, 0x01} }, + {AU8522_FILTER_COEF_R422, {0x54, 0xdd, 0x54, 0x54, 0xdd, 0xdd, 0xdd} }, + {AU8522_FILTER_COEF_R423, {0xd0, 0xaf, 0xd0, 0xd0, 0xaf, 0xaf, 0xaf} }, + {AU8522_FILTER_COEF_R424, {0x1c, 0xf7, 0x1c, 0x1c, 0xf7, 0xf7, 0xf7} }, + {AU8522_FILTER_COEF_R425, {0x76, 0xdb, 0x76, 0x76, 0xdb, 0xdb, 0xdb} }, + {AU8522_FILTER_COEF_R426, {0x61, 0xc0, 0x61, 0x61, 0xc0, 0xc0, 0xc0} }, + {AU8522_FILTER_COEF_R427, {0xd1, 0x2f, 0xd1, 0xd1, 0x2f, 0x2f, 0x2f} }, + {AU8522_FILTER_COEF_R428, {0x84, 0xd8, 0x84, 0x84, 0xd8, 0xd8, 0xd8} }, + {AU8522_FILTER_COEF_R429, {0x06, 0xfb, 0x06, 0x06, 0xfb, 0xfb, 0xfb} }, + {AU8522_FILTER_COEF_R42A, {0x21, 0xd5, 0x21, 0x21, 0xd5, 0xd5, 0xd5} }, + {AU8522_FILTER_COEF_R42B, {0x0a, 0x3e, 0x0a, 0x0a, 0x3e, 0x3e, 0x3e} }, + {AU8522_FILTER_COEF_R42C, {0xe6, 0x15, 0xe6, 0xe6, 0x15, 0x15, 0x15} }, + {AU8522_FILTER_COEF_R42D, {0x01, 0x34, 0x01, 0x01, 0x34, 0x34, 0x34} }, + +}; +#define NUM_FILTER_COEF (sizeof(filter_coef)\ + / sizeof(struct au8522_register_config)) + + +/* Registers 0x060b through 0x0652 are the LP Filter coefficients + The values are as follows from left to right + 0="SIF" 1="ATVRF/ATVRF13" + Note: the "ATVRF/ATVRF13" mode has never been tested +*/ +static const struct au8522_register_config lpfilter_coef[] = { + {0x060b, {0x21, 0x0b} }, + {0x060c, {0xad, 0xad} }, + {0x060d, {0x70, 0xf0} }, + {0x060e, {0xea, 0xe9} }, + {0x060f, {0xdd, 0xdd} }, + {0x0610, {0x08, 0x64} }, + {0x0611, {0x60, 0x60} }, + {0x0612, {0xf8, 0xb2} }, + {0x0613, {0x01, 0x02} }, + {0x0614, {0xe4, 0xb4} }, + {0x0615, {0x19, 0x02} }, + {0x0616, {0xae, 0x2e} }, + {0x0617, {0xee, 0xc5} }, + {0x0618, {0x56, 0x56} }, + {0x0619, {0x30, 0x58} }, + {0x061a, {0xf9, 0xf8} }, + {0x061b, {0x24, 0x64} }, + {0x061c, {0x07, 0x07} }, + {0x061d, {0x30, 0x30} }, + {0x061e, {0xa9, 0xed} }, + {0x061f, {0x09, 0x0b} }, + {0x0620, {0x42, 0xc2} }, + {0x0621, {0x1d, 0x2a} }, + {0x0622, {0xd6, 0x56} }, + {0x0623, {0x95, 0x8b} }, + {0x0624, {0x2b, 0x2b} }, + {0x0625, {0x30, 0x24} }, + {0x0626, {0x3e, 0x3e} }, + {0x0627, {0x62, 0xe2} }, + {0x0628, {0xe9, 0xf5} }, + {0x0629, {0x99, 0x19} }, + {0x062a, {0xd4, 0x11} }, + {0x062b, {0x03, 0x04} }, + {0x062c, {0xb5, 0x85} }, + {0x062d, {0x1e, 0x20} }, + {0x062e, {0x2a, 0xea} }, + {0x062f, {0xd7, 0xd2} }, + {0x0630, {0x15, 0x15} }, + {0x0631, {0xa3, 0xa9} }, + {0x0632, {0x1f, 0x1f} }, + {0x0633, {0xf9, 0xd1} }, + {0x0634, {0xc0, 0xc3} }, + {0x0635, {0x4d, 0x8d} }, + {0x0636, {0x21, 0x31} }, + {0x0637, {0x83, 0x83} }, + {0x0638, {0x08, 0x8c} }, + {0x0639, {0x19, 0x19} }, + {0x063a, {0x45, 0xa5} }, + {0x063b, {0xef, 0xec} }, + {0x063c, {0x8a, 0x8a} }, + {0x063d, {0xf4, 0xf6} }, + {0x063e, {0x8f, 0x8f} }, + {0x063f, {0x44, 0x0c} }, + {0x0640, {0xef, 0xf0} }, + {0x0641, {0x66, 0x66} }, + {0x0642, {0xcc, 0xd2} }, + {0x0643, {0x41, 0x41} }, + {0x0644, {0x63, 0x93} }, + {0x0645, {0x8e, 0x8e} }, + {0x0646, {0xa2, 0x42} }, + {0x0647, {0x7b, 0x7b} }, + {0x0648, {0x04, 0x04} }, + {0x0649, {0x00, 0x00} }, + {0x064a, {0x40, 0x40} }, + {0x064b, {0x8c, 0x98} }, + {0x064c, {0x00, 0x00} }, + {0x064d, {0x63, 0xc3} }, + {0x064e, {0x04, 0x04} }, + {0x064f, {0x20, 0x20} }, + {0x0650, {0x00, 0x00} }, + {0x0651, {0x40, 0x40} }, + {0x0652, {0x01, 0x01} }, +}; +#define NUM_LPFILTER_COEF (sizeof(lpfilter_coef)\ + / sizeof(struct au8522_register_config)) + +static inline struct au8522_state *to_state(struct v4l2_subdev *sd) +{ + return container_of(sd, struct au8522_state, sd); +} + +static void setup_decoder_defaults(struct au8522_state *state, bool is_svideo) +{ + int i; + int filter_coef_type; + + /* Provide reasonable defaults for picture tuning values */ + au8522_writereg(state, AU8522_TVDEC_SHARPNESSREG009H, 0x07); + au8522_writereg(state, AU8522_TVDEC_BRIGHTNESS_REG00AH, 0xed); + au8522_writereg(state, AU8522_TVDEC_CONTRAST_REG00BH, 0x79); + au8522_writereg(state, AU8522_TVDEC_SATURATION_CB_REG00CH, 0x80); + au8522_writereg(state, AU8522_TVDEC_SATURATION_CR_REG00DH, 0x80); + au8522_writereg(state, AU8522_TVDEC_HUE_H_REG00EH, 0x00); + au8522_writereg(state, AU8522_TVDEC_HUE_L_REG00FH, 0x00); + + /* Other decoder registers */ + au8522_writereg(state, AU8522_TVDEC_INT_MASK_REG010H, 0x00); + + if (is_svideo) + au8522_writereg(state, AU8522_VIDEO_MODE_REG011H, 0x04); + else + au8522_writereg(state, AU8522_VIDEO_MODE_REG011H, 0x00); + + au8522_writereg(state, AU8522_TVDEC_PGA_REG012H, + AU8522_TVDEC_PGA_REG012H_CVBS); + au8522_writereg(state, AU8522_TVDEC_COMB_MODE_REG015H, + AU8522_TVDEC_COMB_MODE_REG015H_CVBS); + au8522_writereg(state, AU8522_TVDED_DBG_MODE_REG060H, + AU8522_TVDED_DBG_MODE_REG060H_CVBS); + + if (state->std == V4L2_STD_PAL_M) { + au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL1_REG061H, + AU8522_TVDEC_FORMAT_CTRL1_REG061H_FIELD_LEN_525 | + AU8522_TVDEC_FORMAT_CTRL1_REG061H_LINE_LEN_63_492 | + AU8522_TVDEC_FORMAT_CTRL1_REG061H_SUBCARRIER_NTSC_AUTO); + au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL2_REG062H, + AU8522_TVDEC_FORMAT_CTRL2_REG062H_STD_PAL_M); + } else { + /* NTSC */ + au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL1_REG061H, + AU8522_TVDEC_FORMAT_CTRL1_REG061H_FIELD_LEN_525 | + AU8522_TVDEC_FORMAT_CTRL1_REG061H_LINE_LEN_63_492 | + AU8522_TVDEC_FORMAT_CTRL1_REG061H_SUBCARRIER_NTSC_MN); + au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL2_REG062H, + AU8522_TVDEC_FORMAT_CTRL2_REG062H_STD_NTSC); + } + au8522_writereg(state, AU8522_TVDEC_VCR_DET_LLIM_REG063H, + AU8522_TVDEC_VCR_DET_LLIM_REG063H_CVBS); + au8522_writereg(state, AU8522_TVDEC_VCR_DET_HLIM_REG064H, + AU8522_TVDEC_VCR_DET_HLIM_REG064H_CVBS); + au8522_writereg(state, AU8522_TVDEC_COMB_VDIF_THR1_REG065H, + AU8522_TVDEC_COMB_VDIF_THR1_REG065H_CVBS); + au8522_writereg(state, AU8522_TVDEC_COMB_VDIF_THR2_REG066H, + AU8522_TVDEC_COMB_VDIF_THR2_REG066H_CVBS); + au8522_writereg(state, AU8522_TVDEC_COMB_VDIF_THR3_REG067H, + AU8522_TVDEC_COMB_VDIF_THR3_REG067H_CVBS); + au8522_writereg(state, AU8522_TVDEC_COMB_NOTCH_THR_REG068H, + AU8522_TVDEC_COMB_NOTCH_THR_REG068H_CVBS); + au8522_writereg(state, AU8522_TVDEC_COMB_HDIF_THR1_REG069H, + AU8522_TVDEC_COMB_HDIF_THR1_REG069H_CVBS); + au8522_writereg(state, AU8522_TVDEC_COMB_HDIF_THR2_REG06AH, + AU8522_TVDEC_COMB_HDIF_THR2_REG06AH_CVBS); + au8522_writereg(state, AU8522_TVDEC_COMB_HDIF_THR3_REG06BH, + AU8522_TVDEC_COMB_HDIF_THR3_REG06BH_CVBS); + if (is_svideo) { + au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR1_REG06CH, + AU8522_TVDEC_COMB_DCDIF_THR1_REG06CH_SVIDEO); + au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR2_REG06DH, + AU8522_TVDEC_COMB_DCDIF_THR2_REG06DH_SVIDEO); + } else { + au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR1_REG06CH, + AU8522_TVDEC_COMB_DCDIF_THR1_REG06CH_CVBS); + au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR2_REG06DH, + AU8522_TVDEC_COMB_DCDIF_THR2_REG06DH_CVBS); + } + au8522_writereg(state, AU8522_TVDEC_COMB_DCDIF_THR3_REG06EH, + AU8522_TVDEC_COMB_DCDIF_THR3_REG06EH_CVBS); + au8522_writereg(state, AU8522_TVDEC_UV_SEP_THR_REG06FH, + AU8522_TVDEC_UV_SEP_THR_REG06FH_CVBS); + au8522_writereg(state, AU8522_TVDEC_COMB_DC_THR1_NTSC_REG070H, + AU8522_TVDEC_COMB_DC_THR1_NTSC_REG070H_CVBS); + au8522_writereg(state, AU8522_REG071H, AU8522_REG071H_CVBS); + au8522_writereg(state, AU8522_REG072H, AU8522_REG072H_CVBS); + au8522_writereg(state, AU8522_TVDEC_COMB_DC_THR2_NTSC_REG073H, + AU8522_TVDEC_COMB_DC_THR2_NTSC_REG073H_CVBS); + au8522_writereg(state, AU8522_REG074H, AU8522_REG074H_CVBS); + au8522_writereg(state, AU8522_REG075H, AU8522_REG075H_CVBS); + au8522_writereg(state, AU8522_TVDEC_DCAGC_CTRL_REG077H, + AU8522_TVDEC_DCAGC_CTRL_REG077H_CVBS); + au8522_writereg(state, AU8522_TVDEC_PIC_START_ADJ_REG078H, + AU8522_TVDEC_PIC_START_ADJ_REG078H_CVBS); + au8522_writereg(state, AU8522_TVDEC_AGC_HIGH_LIMIT_REG079H, + AU8522_TVDEC_AGC_HIGH_LIMIT_REG079H_CVBS); + au8522_writereg(state, AU8522_TVDEC_MACROVISION_SYNC_THR_REG07AH, + AU8522_TVDEC_MACROVISION_SYNC_THR_REG07AH_CVBS); + au8522_writereg(state, AU8522_TVDEC_INTRP_CTRL_REG07BH, + AU8522_TVDEC_INTRP_CTRL_REG07BH_CVBS); + au8522_writereg(state, AU8522_TVDEC_AGC_LOW_LIMIT_REG0E4H, + AU8522_TVDEC_AGC_LOW_LIMIT_REG0E4H_CVBS); + au8522_writereg(state, AU8522_TOREGAAGC_REG0E5H, + AU8522_TOREGAAGC_REG0E5H_CVBS); + au8522_writereg(state, AU8522_REG016H, AU8522_REG016H_CVBS); + + /* + * Despite what the table says, for the HVR-950q we still need + * to be in CVBS mode for the S-Video input (reason unknown). + */ + /* filter_coef_type = 3; */ + filter_coef_type = 5; + + /* Load the Video Decoder Filter Coefficients */ + for (i = 0; i < NUM_FILTER_COEF; i++) { + au8522_writereg(state, filter_coef[i].reg_name, + filter_coef[i].reg_val[filter_coef_type]); + } + + /* It's not clear what these registers are for, but they are always + set to the same value regardless of what mode we're in */ + au8522_writereg(state, AU8522_REG42EH, 0x87); + au8522_writereg(state, AU8522_REG42FH, 0xa2); + au8522_writereg(state, AU8522_REG430H, 0xbf); + au8522_writereg(state, AU8522_REG431H, 0xcb); + au8522_writereg(state, AU8522_REG432H, 0xa1); + au8522_writereg(state, AU8522_REG433H, 0x41); + au8522_writereg(state, AU8522_REG434H, 0x88); + au8522_writereg(state, AU8522_REG435H, 0xc2); + au8522_writereg(state, AU8522_REG436H, 0x3c); +} + +static void au8522_setup_cvbs_mode(struct au8522_state *state, u8 input_mode) +{ + /* here we're going to try the pre-programmed route */ + au8522_writereg(state, AU8522_MODULE_CLOCK_CONTROL_REG0A3H, + AU8522_MODULE_CLOCK_CONTROL_REG0A3H_CVBS); + + /* PGA in automatic mode */ + au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x00); + + /* Enable clamping control */ + au8522_writereg(state, AU8522_CLAMPING_CONTROL_REG083H, 0x00); + + au8522_writereg(state, AU8522_INPUT_CONTROL_REG081H, input_mode); + + setup_decoder_defaults(state, false); + + au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H, + AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS); +} + +static void au8522_setup_cvbs_tuner_mode(struct au8522_state *state, + u8 input_mode) +{ + /* here we're going to try the pre-programmed route */ + au8522_writereg(state, AU8522_MODULE_CLOCK_CONTROL_REG0A3H, + AU8522_MODULE_CLOCK_CONTROL_REG0A3H_CVBS); + + /* It's not clear why we have to have the PGA in automatic mode while + enabling clamp control, but it's what Windows does */ + au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x00); + + /* Enable clamping control */ + au8522_writereg(state, AU8522_CLAMPING_CONTROL_REG083H, 0x0e); + + /* Disable automatic PGA (since the CVBS is coming from the tuner) */ + au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x10); + + /* Set input mode to CVBS on channel 4 with SIF audio input enabled */ + au8522_writereg(state, AU8522_INPUT_CONTROL_REG081H, input_mode); + + setup_decoder_defaults(state, false); + + au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H, + AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS); +} + +static void au8522_setup_svideo_mode(struct au8522_state *state, + u8 input_mode) +{ + au8522_writereg(state, AU8522_MODULE_CLOCK_CONTROL_REG0A3H, + AU8522_MODULE_CLOCK_CONTROL_REG0A3H_SVIDEO); + + /* Set input to Y on Channe1, C on Channel 3 */ + au8522_writereg(state, AU8522_INPUT_CONTROL_REG081H, input_mode); + + /* PGA in automatic mode */ + au8522_writereg(state, AU8522_PGA_CONTROL_REG082H, 0x00); + + /* Enable clamping control */ + au8522_writereg(state, AU8522_CLAMPING_CONTROL_REG083H, 0x00); + + setup_decoder_defaults(state, true); + + au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H, + AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_CVBS); +} + +/* ----------------------------------------------------------------------- */ + +static void disable_audio_input(struct au8522_state *state) +{ + au8522_writereg(state, AU8522_AUDIO_VOLUME_L_REG0F2H, 0x00); + au8522_writereg(state, AU8522_AUDIO_VOLUME_R_REG0F3H, 0x00); + au8522_writereg(state, AU8522_AUDIO_VOLUME_REG0F4H, 0x00); + + au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H, 0x04); + au8522_writereg(state, AU8522_I2S_CTRL_2_REG112H, 0x02); + + au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H, + AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H_SVIDEO); +} + +/* 0=disable, 1=SIF */ +static void set_audio_input(struct au8522_state *state) +{ + int aud_input = state->aud_input; + int i; + + /* Note that this function needs to be used in conjunction with setting + the input routing via register 0x81 */ + + if (aud_input == AU8522_AUDIO_NONE) { + disable_audio_input(state); + return; + } + + if (aud_input != AU8522_AUDIO_SIF) { + /* The caller asked for a mode we don't currently support */ + printk(KERN_ERR "Unsupported audio mode requested! mode=%d\n", + aud_input); + return; + } + + /* Load the Audio Decoder Filter Coefficients */ + for (i = 0; i < NUM_LPFILTER_COEF; i++) { + au8522_writereg(state, lpfilter_coef[i].reg_name, + lpfilter_coef[i].reg_val[0]); + } + + /* Set the volume */ + au8522_writereg(state, AU8522_AUDIO_VOLUME_L_REG0F2H, 0x7F); + au8522_writereg(state, AU8522_AUDIO_VOLUME_R_REG0F3H, 0x7F); + au8522_writereg(state, AU8522_AUDIO_VOLUME_REG0F4H, 0xff); + + /* Not sure what this does */ + au8522_writereg(state, AU8522_REG0F9H, AU8522_REG0F9H_AUDIO); + + /* Setup the audio mode to stereo DBX */ + au8522_writereg(state, AU8522_AUDIO_MODE_REG0F1H, 0x82); + msleep(70); + + /* Start the audio processing module */ + au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H, 0x9d); + + /* Set the audio frequency to 48 KHz */ + au8522_writereg(state, AU8522_AUDIOFREQ_REG606H, 0x03); + + /* Set the I2S parameters (WS, LSB, mode, sample rate */ + au8522_writereg(state, AU8522_I2S_CTRL_2_REG112H, 0xc2); + + /* Enable the I2S output */ + au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_1_REG0A5H, 0x09); +} + +/* ----------------------------------------------------------------------- */ + +static int au8522_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct au8522_state *state = + container_of(ctrl->handler, struct au8522_state, hdl); + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + au8522_writereg(state, AU8522_TVDEC_BRIGHTNESS_REG00AH, + ctrl->val - 128); + break; + case V4L2_CID_CONTRAST: + au8522_writereg(state, AU8522_TVDEC_CONTRAST_REG00BH, + ctrl->val); + break; + case V4L2_CID_SATURATION: + au8522_writereg(state, AU8522_TVDEC_SATURATION_CB_REG00CH, + ctrl->val); + au8522_writereg(state, AU8522_TVDEC_SATURATION_CR_REG00DH, + ctrl->val); + break; + case V4L2_CID_HUE: + au8522_writereg(state, AU8522_TVDEC_HUE_H_REG00EH, + ctrl->val >> 8); + au8522_writereg(state, AU8522_TVDEC_HUE_L_REG00FH, + ctrl->val & 0xFF); + break; + default: + return -EINVAL; + } + + return 0; +} + +/* ----------------------------------------------------------------------- */ + +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int au8522_g_register(struct v4l2_subdev *sd, + struct v4l2_dbg_register *reg) +{ + struct au8522_state *state = to_state(sd); + + reg->val = au8522_readreg(state, reg->reg & 0xffff); + return 0; +} + +static int au8522_s_register(struct v4l2_subdev *sd, + const struct v4l2_dbg_register *reg) +{ + struct au8522_state *state = to_state(sd); + + au8522_writereg(state, reg->reg, reg->val & 0xff); + return 0; +} +#endif + +static void au8522_video_set(struct au8522_state *state) +{ + u8 input_mode; + + au8522_writereg(state, 0xa4, 1 << 5); + + switch (state->vid_input) { + case AU8522_COMPOSITE_CH1: + input_mode = AU8522_INPUT_CONTROL_REG081H_CVBS_CH1; + au8522_setup_cvbs_mode(state, input_mode); + break; + case AU8522_COMPOSITE_CH2: + input_mode = AU8522_INPUT_CONTROL_REG081H_CVBS_CH2; + au8522_setup_cvbs_mode(state, input_mode); + break; + case AU8522_COMPOSITE_CH3: + input_mode = AU8522_INPUT_CONTROL_REG081H_CVBS_CH3; + au8522_setup_cvbs_mode(state, input_mode); + break; + case AU8522_COMPOSITE_CH4: + input_mode = AU8522_INPUT_CONTROL_REG081H_CVBS_CH4; + au8522_setup_cvbs_mode(state, input_mode); + break; + case AU8522_SVIDEO_CH13: + input_mode = AU8522_INPUT_CONTROL_REG081H_SVIDEO_CH13; + au8522_setup_svideo_mode(state, input_mode); + break; + case AU8522_SVIDEO_CH24: + input_mode = AU8522_INPUT_CONTROL_REG081H_SVIDEO_CH24; + au8522_setup_svideo_mode(state, input_mode); + break; + default: + case AU8522_COMPOSITE_CH4_SIF: + input_mode = AU8522_INPUT_CONTROL_REG081H_CVBS_CH4_SIF; + au8522_setup_cvbs_tuner_mode(state, input_mode); + break; + } +} + +static int au8522_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct au8522_state *state = to_state(sd); + + if (enable) { + /* + * Clear out any state associated with the digital side of the + * chip, so that when it gets powered back up it won't think + * that it is already tuned + */ + state->current_frequency = 0; + + au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H, + 0x01); + msleep(10); + + au8522_video_set(state); + set_audio_input(state); + + state->operational_mode = AU8522_ANALOG_MODE; + } else { + /* This does not completely power down the device + (it only reduces it from around 140ma to 80ma) */ + au8522_writereg(state, AU8522_SYSTEM_MODULE_CONTROL_0_REG0A4H, + 1 << 5); + state->operational_mode = AU8522_SUSPEND_MODE; + } + return 0; +} + +static int au8522_s_video_routing(struct v4l2_subdev *sd, + u32 input, u32 output, u32 config) +{ + struct au8522_state *state = to_state(sd); + + switch (input) { + case AU8522_COMPOSITE_CH1: + case AU8522_SVIDEO_CH13: + case AU8522_COMPOSITE_CH4_SIF: + state->vid_input = input; + break; + default: + printk(KERN_ERR "au8522 mode not currently supported\n"); + return -EINVAL; + } + + if (state->operational_mode == AU8522_ANALOG_MODE) + au8522_video_set(state); + + return 0; +} + +static int au8522_s_std(struct v4l2_subdev *sd, v4l2_std_id std) +{ + struct au8522_state *state = to_state(sd); + + if ((std & (V4L2_STD_PAL_M | V4L2_STD_NTSC_M)) == 0) + return -EINVAL; + + state->std = std; + + if (state->operational_mode == AU8522_ANALOG_MODE) + au8522_video_set(state); + + return 0; +} + +static int au8522_s_audio_routing(struct v4l2_subdev *sd, + u32 input, u32 output, u32 config) +{ + struct au8522_state *state = to_state(sd); + + state->aud_input = input; + + if (state->operational_mode == AU8522_ANALOG_MODE) + set_audio_input(state); + + return 0; +} + +static int au8522_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) +{ + int val = 0; + struct au8522_state *state = to_state(sd); + u8 lock_status; + u8 pll_status; + + /* Interrogate the decoder to see if we are getting a real signal */ + lock_status = au8522_readreg(state, 0x00); + pll_status = au8522_readreg(state, 0x7e); + if ((lock_status == 0xa2) && (pll_status & 0x10)) + vt->signal = 0xffff; + else + vt->signal = 0x00; + + vt->capability |= + V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 | + V4L2_TUNER_CAP_LANG2 | V4L2_TUNER_CAP_SAP; + + val = V4L2_TUNER_SUB_MONO; + vt->rxsubchans = val; + vt->audmode = V4L2_TUNER_MODE_STEREO; + return 0; +} + +/* ----------------------------------------------------------------------- */ + +static const struct v4l2_subdev_core_ops au8522_core_ops = { + .log_status = v4l2_ctrl_subdev_log_status, +#ifdef CONFIG_VIDEO_ADV_DEBUG + .g_register = au8522_g_register, + .s_register = au8522_s_register, +#endif +}; + +static const struct v4l2_subdev_tuner_ops au8522_tuner_ops = { + .g_tuner = au8522_g_tuner, +}; + +static const struct v4l2_subdev_audio_ops au8522_audio_ops = { + .s_routing = au8522_s_audio_routing, +}; + +static const struct v4l2_subdev_video_ops au8522_video_ops = { + .s_routing = au8522_s_video_routing, + .s_stream = au8522_s_stream, + .s_std = au8522_s_std, +}; + +static const struct v4l2_subdev_ops au8522_ops = { + .core = &au8522_core_ops, + .tuner = &au8522_tuner_ops, + .audio = &au8522_audio_ops, + .video = &au8522_video_ops, +}; + +static const struct v4l2_ctrl_ops au8522_ctrl_ops = { + .s_ctrl = au8522_s_ctrl, +}; + +/* ----------------------------------------------------------------------- */ + +static int au8522_probe(struct i2c_client *client, + const struct i2c_device_id *did) +{ + struct au8522_state *state; + struct v4l2_ctrl_handler *hdl; + struct v4l2_subdev *sd; + int instance; +#ifdef CONFIG_MEDIA_CONTROLLER + int ret; +#endif + + /* Check if the adapter supports the needed features */ + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_BYTE_DATA)) { + return -EIO; + } + + /* allocate memory for the internal state */ + instance = au8522_get_state(&state, client->adapter, client->addr); + switch (instance) { + case 0: + printk(KERN_ERR "au8522_decoder allocation failed\n"); + return -EIO; + case 1: + /* new demod instance */ + printk(KERN_INFO "au8522_decoder creating new instance...\n"); + break; + default: + /* existing demod instance */ + printk(KERN_INFO "au8522_decoder attach existing instance.\n"); + break; + } + + state->config.demod_address = 0x8e >> 1; + state->i2c = client->adapter; + + sd = &state->sd; + v4l2_i2c_subdev_init(sd, client, &au8522_ops); +#if defined(CONFIG_MEDIA_CONTROLLER) + + state->pads[AU8522_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK; + state->pads[AU8522_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG; + state->pads[AU8522_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE; + state->pads[AU8522_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV; + state->pads[AU8522_PAD_AUDIO_OUT].flags = MEDIA_PAD_FL_SOURCE; + state->pads[AU8522_PAD_AUDIO_OUT].sig_type = PAD_SIGNAL_AUDIO; + sd->entity.function = MEDIA_ENT_F_ATV_DECODER; + + ret = media_entity_pads_init(&sd->entity, ARRAY_SIZE(state->pads), + state->pads); + if (ret < 0) { + v4l_info(client, "failed to initialize media entity!\n"); + return ret; + } +#endif + + hdl = &state->hdl; + v4l2_ctrl_handler_init(hdl, 4); + v4l2_ctrl_new_std(hdl, &au8522_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 255, 1, 109); + v4l2_ctrl_new_std(hdl, &au8522_ctrl_ops, + V4L2_CID_CONTRAST, 0, 255, 1, + AU8522_TVDEC_CONTRAST_REG00BH_CVBS); + v4l2_ctrl_new_std(hdl, &au8522_ctrl_ops, + V4L2_CID_SATURATION, 0, 255, 1, 128); + v4l2_ctrl_new_std(hdl, &au8522_ctrl_ops, + V4L2_CID_HUE, -32768, 32767, 1, 0); + sd->ctrl_handler = hdl; + if (hdl->error) { + int err = hdl->error; + + v4l2_ctrl_handler_free(hdl); + au8522_release_state(state); + return err; + } + + state->c = client; + state->std = V4L2_STD_NTSC_M; + state->vid_input = AU8522_COMPOSITE_CH1; + state->aud_input = AU8522_AUDIO_NONE; + state->id = 8522; + state->rev = 0; + + /* Jam open the i2c gate to the tuner */ + au8522_writereg(state, 0x106, 1); + + return 0; +} + +static void au8522_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + v4l2_device_unregister_subdev(sd); + v4l2_ctrl_handler_free(sd->ctrl_handler); + au8522_release_state(to_state(sd)); +} + +static const struct i2c_device_id au8522_id[] = { + {"au8522", 0}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, au8522_id); + +static struct i2c_driver au8522_driver = { + .driver = { + .name = "au8522", + }, + .probe = au8522_probe, + .remove = au8522_remove, + .id_table = au8522_id, +}; + +module_i2c_driver(au8522_driver); |