/* * Video Capture Driver (Video for Linux 1/2) * for the Matrox Marvel G200,G400 and Rainbow Runner-G series * * This module is an interface to the KS0127 video decoder chip. * * Copyright (C) 1999 Ryan Drake <stiletto@mediaone.net> * * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * ***************************************************************************** * * Modified and extended by * Mike Bernson <mike@mlb.org> * Gerard v.d. Horst * Leon van Stuivenberg <l.vanstuivenberg@chello.nl> * Gernot Ziegler <gz@lysator.liu.se> * * Version History: * V1.0 Ryan Drake Initial version by Ryan Drake * V1.1 Gerard v.d. Horst Added some debugoutput, reset the video-standard */ #include <linux/init.h> #include <linux/module.h> #include <linux/delay.h> #include <linux/errno.h> #include <linux/kernel.h> #include <linux/i2c.h> #include <linux/videodev2.h> #include <linux/slab.h> #include <media/v4l2-device.h> #include "ks0127.h" MODULE_DESCRIPTION("KS0127 video decoder driver"); MODULE_AUTHOR("Ryan Drake"); MODULE_LICENSE("GPL"); /* Addresses */ #define I2C_KS0127_ADDON 0xD8 #define I2C_KS0127_ONBOARD 0xDA /* ks0127 control registers */ #define KS_STAT 0x00 #define KS_CMDA 0x01 #define KS_CMDB 0x02 #define KS_CMDC 0x03 #define KS_CMDD 0x04 #define KS_HAVB 0x05 #define KS_HAVE 0x06 #define KS_HS1B 0x07 #define KS_HS1E 0x08 #define KS_HS2B 0x09 #define KS_HS2E 0x0a #define KS_AGC 0x0b #define KS_HXTRA 0x0c #define KS_CDEM 0x0d #define KS_PORTAB 0x0e #define KS_LUMA 0x0f #define KS_CON 0x10 #define KS_BRT 0x11 #define KS_CHROMA 0x12 #define KS_CHROMB 0x13 #define KS_DEMOD 0x14 #define KS_SAT 0x15 #define KS_HUE 0x16 #define KS_VERTIA 0x17 #define KS_VERTIB 0x18 #define KS_VERTIC 0x19 #define KS_HSCLL 0x1a #define KS_HSCLH 0x1b #define KS_VSCLL 0x1c #define KS_VSCLH 0x1d #define KS_OFMTA 0x1e #define KS_OFMTB 0x1f #define KS_VBICTL 0x20 #define KS_CCDAT2 0x21 #define KS_CCDAT1 0x22 #define KS_VBIL30 0x23 #define KS_VBIL74 0x24 #define KS_VBIL118 0x25 #define KS_VBIL1512 0x26 #define KS_TTFRAM 0x27 #define KS_TESTA 0x28 #define KS_UVOFFH 0x29 #define KS_UVOFFL 0x2a #define KS_UGAIN 0x2b #define KS_VGAIN 0x2c #define KS_VAVB 0x2d #define KS_VAVE 0x2e #define KS_CTRACK 0x2f #define KS_POLCTL 0x30 #define KS_REFCOD 0x31 #define KS_INVALY 0x32 #define KS_INVALU 0x33 #define KS_INVALV 0x34 #define KS_UNUSEY 0x35 #define KS_UNUSEU 0x36 #define KS_UNUSEV 0x37 #define KS_USRSAV 0x38 #define KS_USREAV 0x39 #define KS_SHS1A 0x3a #define KS_SHS1B 0x3b #define KS_SHS1C 0x3c #define KS_CMDE 0x3d #define KS_VSDEL 0x3e #define KS_CMDF 0x3f #define KS_GAMMA0 0x40 #define KS_GAMMA1 0x41 #define KS_GAMMA2 0x42 #define KS_GAMMA3 0x43 #define KS_GAMMA4 0x44 #define KS_GAMMA5 0x45 #define KS_GAMMA6 0x46 #define KS_GAMMA7 0x47 #define KS_GAMMA8 0x48 #define KS_GAMMA9 0x49 #define KS_GAMMA10 0x4a #define KS_GAMMA11 0x4b #define KS_GAMMA12 0x4c #define KS_GAMMA13 0x4d #define KS_GAMMA14 0x4e #define KS_GAMMA15 0x4f #define KS_GAMMA16 0x50 #define KS_GAMMA17 0x51 #define KS_GAMMA18 0x52 #define KS_GAMMA19 0x53 #define KS_GAMMA20 0x54 #define KS_GAMMA21 0x55 #define KS_GAMMA22 0x56 #define KS_GAMMA23 0x57 #define KS_GAMMA24 0x58 #define KS_GAMMA25 0x59 #define KS_GAMMA26 0x5a #define KS_GAMMA27 0x5b #define KS_GAMMA28 0x5c #define KS_GAMMA29 0x5d #define KS_GAMMA30 0x5e #define KS_GAMMA31 0x5f #define KS_GAMMAD0 0x60 #define KS_GAMMAD1 0x61 #define KS_GAMMAD2 0x62 #define KS_GAMMAD3 0x63 #define KS_GAMMAD4 0x64 #define KS_GAMMAD5 0x65 #define KS_GAMMAD6 0x66 #define KS_GAMMAD7 0x67 #define KS_GAMMAD8 0x68 #define KS_GAMMAD9 0x69 #define KS_GAMMAD10 0x6a #define KS_GAMMAD11 0x6b #define KS_GAMMAD12 0x6c #define KS_GAMMAD13 0x6d #define KS_GAMMAD14 0x6e #define KS_GAMMAD15 0x6f #define KS_GAMMAD16 0x70 #define KS_GAMMAD17 0x71 #define KS_GAMMAD18 0x72 #define KS_GAMMAD19 0x73 #define KS_GAMMAD20 0x74 #define KS_GAMMAD21 0x75 #define KS_GAMMAD22 0x76 #define KS_GAMMAD23 0x77 #define KS_GAMMAD24 0x78 #define KS_GAMMAD25 0x79 #define KS_GAMMAD26 0x7a #define KS_GAMMAD27 0x7b #define KS_GAMMAD28 0x7c #define KS_GAMMAD29 0x7d #define KS_GAMMAD30 0x7e #define KS_GAMMAD31 0x7f /**************************************************************************** * mga_dev : represents one ks0127 chip. ****************************************************************************/ struct adjust { int contrast; int bright; int hue; int ugain; int vgain; }; struct ks0127 { struct v4l2_subdev sd; v4l2_std_id norm; u8 regs[256]; }; static inline struct ks0127 *to_ks0127(struct v4l2_subdev *sd) { return container_of(sd, struct ks0127, sd); } static int debug; /* insmod parameter */ module_param(debug, int, 0); MODULE_PARM_DESC(debug, "Debug output"); static u8 reg_defaults[64]; static void init_reg_defaults(void) { static int initialized; u8 *table = reg_defaults; if (initialized) return; initialized = 1; table[KS_CMDA] = 0x2c; /* VSE=0, CCIR 601, autodetect standard */ table[KS_CMDB] = 0x12; /* VALIGN=0, AGC control and input */ table[KS_CMDC] = 0x00; /* Test options */ /* clock & input select, write 1 to PORTA */ table[KS_CMDD] = 0x01; table[KS_HAVB] = 0x00; /* HAV Start Control */ table[KS_HAVE] = 0x00; /* HAV End Control */ table[KS_HS1B] = 0x10; /* HS1 Start Control */ table[KS_HS1E] = 0x00; /* HS1 End Control */ table[KS_HS2B] = 0x00; /* HS2 Start Control */ table[KS_HS2E] = 0x00; /* HS2 End Control */ table[KS_AGC] = 0x53; /* Manual setting for AGC */ table[KS_HXTRA] = 0x00; /* Extra Bits for HAV and HS1/2 */ table[KS_CDEM] = 0x00; /* Chroma Demodulation Control */ table[KS_PORTAB] = 0x0f; /* port B is input, port A output GPPORT */ table[KS_LUMA] = 0x01; /* Luma control */ table[KS_CON] = 0x00; /* Contrast Control */ table[KS_BRT] = 0x00; /* Brightness Control */ table[KS_CHROMA] = 0x2a; /* Chroma control A */ table[KS_CHROMB] = 0x90; /* Chroma control B */ table[KS_DEMOD] = 0x00; /* Chroma Demodulation Control & Status */ table[KS_SAT] = 0x00; /* Color Saturation Control*/ table[KS_HUE] = 0x00; /* Hue Control */ table[KS_VERTIA] = 0x00; /* Vertical Processing Control A */ /* Vertical Processing Control B, luma 1 line delayed */ table[KS_VERTIB] = 0x12; table[KS_VERTIC] = 0x0b; /* Vertical Processing Control C */ table[KS_HSCLL] = 0x00; /* Horizontal Scaling Ratio Low */ table[KS_HSCLH] = 0x00; /* Horizontal Scaling Ratio High */ table[KS_VSCLL] = 0x00; /* Vertical Scaling Ratio Low */ table[KS_VSCLH] = 0x00; /* Vertical Scaling Ratio High */ /* 16 bit YCbCr 4:2:2 output; I can't make the bt866 like 8 bit /Sam */ table[KS_OFMTA] = 0x30; table[KS_OFMTB] = 0x00; /* Output Control B */ /* VBI Decoder Control; 4bit fmt: avoid Y overflow */ table[KS_VBICTL] = 0x5d; table[KS_CCDAT2] = 0x00; /* Read Only register */ table[KS_CCDAT1] = 0x00; /* Read Only register */ table[KS_VBIL30] = 0xa8; /* VBI data decoding options */ table[KS_VBIL74] = 0xaa; /* VBI data decoding options */ table[KS_VBIL118] = 0x2a; /* VBI data decoding options */ table[KS_VBIL1512] = 0x00; /* VBI data decoding options */ table[KS_TTFRAM] = 0x00; /* Teletext frame alignment pattern */ table[KS_TESTA] = 0x00; /* test register, shouldn't be written */ table[KS_UVOFFH] = 0x00; /* UV Offset Adjustment High */ table[KS_UVOFFL] = 0x00; /* UV Offset Adjustment Low */ table[KS_UGAIN] = 0x00; /* U Component Gain Adjustment */ table[KS_VGAIN] = 0x00; /* V Component Gain Adjustment */ table[KS_VAVB] = 0x07; /* VAV Begin */ table[KS_VAVE] = 0x00; /* VAV End */ table[KS_CTRACK] = 0x00; /* Chroma Tracking Control */ table[KS_POLCTL] = 0x41; /* Timing Signal Polarity Control */ table[KS_REFCOD] = 0x80; /* Reference Code Insertion Control */ table[KS_INVALY] = 0x10; /* Invalid Y Code */ table[KS_INVALU] = 0x80; /* Invalid U Code */ table[KS_INVALV] = 0x80; /* Invalid V Code */ table[KS_UNUSEY] = 0x10; /* Unused Y Code */ table[KS_UNUSEU] = 0x80; /* Unused U Code */ table[KS_UNUSEV] = 0x80; /* Unused V Code */ table[KS_USRSAV] = 0x00; /* reserved */ table[KS_USREAV] = 0x00; /* reserved */ table[KS_SHS1A] = 0x00; /* User Defined SHS1 A */ /* User Defined SHS1 B, ALT656=1 on 0127B */ table[KS_SHS1B] = 0x80; table[KS_SHS1C] = 0x00; /* User Defined SHS1 C */ table[KS_CMDE] = 0x00; /* Command Register E */ table[KS_VSDEL] = 0x00; /* VS Delay Control */ /* Command Register F, update -immediately- */ /* (there might come no vsync)*/ table[KS_CMDF] = 0x02; } /* We need to manually read because of a bug in the KS0127 chip. * * An explanation from kayork@mail.utexas.edu: * * During I2C reads, the KS0127 only samples for a stop condition * during the place where the acknowledge bit should be. Any standard * I2C implementation (correctly) throws in another clock transition * at the 9th bit, and the KS0127 will not recognize the stop condition * and will continue to clock out data. * * So we have to do the read ourself. Big deal. * workaround in i2c-algo-bit */ static u8 ks0127_read(struct v4l2_subdev *sd, u8 reg) { struct i2c_client *client = v4l2_get_subdevdata(sd); char val = 0; struct i2c_msg msgs[] = { { .addr = client->addr, .len = sizeof(reg), .buf = ® }, { .addr = client->addr, .flags = I2C_M_RD | I2C_M_NO_RD_ACK, .len = sizeof(val), .buf = &val } }; int ret; ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); if (ret != ARRAY_SIZE(msgs)) v4l2_dbg(1, debug, sd, "read error\n"); return val; } static void ks0127_write(struct v4l2_subdev *sd, u8 reg, u8 val) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct ks0127 *ks = to_ks0127(sd); char msg[] = { reg, val }; if (i2c_master_send(client, msg, sizeof(msg)) != sizeof(msg)) v4l2_dbg(1, debug, sd, "write error\n"); ks->regs[reg] = val; } /* generic bit-twiddling */ static void ks0127_and_or(struct v4l2_subdev *sd, u8 reg, u8 and_v, u8 or_v) { struct ks0127 *ks = to_ks0127(sd); u8 val = ks->regs[reg]; val = (val & and_v) | or_v; ks0127_write(sd, reg, val); } /**************************************************************************** * ks0127 private api ****************************************************************************/ static void ks0127_init(struct v4l2_subdev *sd) { u8 *table = reg_defaults; int i; v4l2_dbg(1, debug, sd, "reset\n"); msleep(1); /* initialize all registers to known values */ /* (except STAT, 0x21, 0x22, TEST and 0x38,0x39) */ for (i = 1; i < 33; i++) ks0127_write(sd, i, table[i]); for (i = 35; i < 40; i++) ks0127_write(sd, i, table[i]); for (i = 41; i < 56; i++) ks0127_write(sd, i, table[i]); for (i = 58; i < 64; i++) ks0127_write(sd, i, table[i]); if ((ks0127_read(sd, KS_STAT) & 0x80) == 0) { v4l2_dbg(1, debug, sd, "ks0122s found\n"); return; } switch (ks0127_read(sd, KS_CMDE) & 0x0f) { case 0: v4l2_dbg(1, debug, sd, "ks0127 found\n"); break; case 9: v4l2_dbg(1, debug, sd, "ks0127B Revision A found\n"); break; default: v4l2_dbg(1, debug, sd, "unknown revision\n"); break; } } static int ks0127_s_routing(struct v4l2_subdev *sd, u32 input, u32 output, u32 config) { struct ks0127 *ks = to_ks0127(sd); switch (input) { case KS_INPUT_COMPOSITE_1: case KS_INPUT_COMPOSITE_2: case KS_INPUT_COMPOSITE_3: case KS_INPUT_COMPOSITE_4: case KS_INPUT_COMPOSITE_5: case KS_INPUT_COMPOSITE_6: v4l2_dbg(1, debug, sd, "s_routing %d: Composite\n", input); /* autodetect 50/60 Hz */ ks0127_and_or(sd, KS_CMDA, 0xfc, 0x00); /* VSE=0 */ ks0127_and_or(sd, KS_CMDA, ~0x40, 0x00); /* set input line */ ks0127_and_or(sd, KS_CMDB, 0xb0, input); /* non-freerunning mode */ ks0127_and_or(sd, KS_CMDC, 0x70, 0x0a); /* analog input */ ks0127_and_or(sd, KS_CMDD, 0x03, 0x00); /* enable chroma demodulation */ ks0127_and_or(sd, KS_CTRACK, 0xcf, 0x00); /* chroma trap, HYBWR=1 */ ks0127_and_or(sd, KS_LUMA, 0x00, (reg_defaults[KS_LUMA])|0x0c); /* scaler fullbw, luma comb off */ ks0127_and_or(sd, KS_VERTIA, 0x08, 0x81); /* manual chroma comb .25 .5 .25 */ ks0127_and_or(sd, KS_VERTIC, 0x0f, 0x90); /* chroma path delay */ ks0127_and_or(sd, KS_CHROMB, 0x0f, 0x90); ks0127_write(sd, KS_UGAIN, reg_defaults[KS_UGAIN]); ks0127_write(sd, KS_VGAIN, reg_defaults[KS_VGAIN]); ks0127_write(sd, KS_UVOFFH, reg_defaults[KS_UVOFFH]); ks0127_write(sd, KS_UVOFFL, reg_defaults[KS_UVOFFL]); break; case KS_INPUT_SVIDEO_1: case KS_INPUT_SVIDEO_2: case KS_INPUT_SVIDEO_3: v4l2_dbg(1, debug, sd, "s_routing %d: S-Video\n", input); /* autodetect 50/60 Hz */ ks0127_and_or(sd, KS_CMDA, 0xfc, 0x00); /* VSE=0 */ ks0127_and_or(sd, KS_CMDA, ~0x40, 0x00); /* set input line */ ks0127_and_or(sd, KS_CMDB, 0xb0, input); /* non-freerunning mode */ ks0127_and_or(sd, KS_CMDC, 0x70, 0x0a); /* analog input */ ks0127_and_or(sd, KS_CMDD, 0x03, 0x00); /* enable chroma demodulation */ ks0127_and_or(sd, KS_CTRACK, 0xcf, 0x00); ks0127_and_or(sd, KS_LUMA, 0x00, reg_defaults[KS_LUMA]); /* disable luma comb */ ks0127_and_or(sd, KS_VERTIA, 0x08, (reg_defaults[KS_VERTIA]&0xf0)|0x01); ks0127_and_or(sd, KS_VERTIC, 0x0f, reg_defaults[KS_VERTIC]&0xf0); ks0127_and_or(sd, KS_CHROMB, 0x0f, reg_defaults[KS_CHROMB]&0xf0); ks0127_write(sd, KS_UGAIN, reg_defaults[KS_UGAIN]); ks0127_write(sd, KS_VGAIN, reg_defaults[KS_VGAIN]); ks0127_write(sd, KS_UVOFFH, reg_defaults[KS_UVOFFH]); ks0127_write(sd, KS_UVOFFL, reg_defaults[KS_UVOFFL]); break; case KS_INPUT_YUV656: v4l2_dbg(1, debug, sd, "s_routing 15: YUV656\n"); if (ks->norm & V4L2_STD_525_60) /* force 60 Hz */ ks0127_and_or(sd, KS_CMDA, 0xfc, 0x03); else /* force 50 Hz */ ks0127_and_or(sd, KS_CMDA, 0xfc, 0x02); ks0127_and_or(sd, KS_CMDA, 0xff, 0x40); /* VSE=1 */ /* set input line and VALIGN */ ks0127_and_or(sd, KS_CMDB, 0xb0, (input | 0x40)); /* freerunning mode, */ /* TSTGEN = 1 TSTGFR=11 TSTGPH=0 TSTGPK=0 VMEM=1*/ ks0127_and_or(sd, KS_CMDC, 0x70, 0x87); /* digital input, SYNDIR = 0 INPSL=01 CLKDIR=0 EAV=0 */ ks0127_and_or(sd, KS_CMDD, 0x03, 0x08); /* disable chroma demodulation */ ks0127_and_or(sd, KS_CTRACK, 0xcf, 0x30); /* HYPK =01 CTRAP = 0 HYBWR=0 PED=1 RGBH=1 UNIT=1 */ ks0127_and_or(sd, KS_LUMA, 0x00, 0x71); ks0127_and_or(sd, KS_VERTIC, 0x0f, reg_defaults[KS_VERTIC]&0xf0); /* scaler fullbw, luma comb off */ ks0127_and_or(sd, KS_VERTIA, 0x08, 0x81); ks0127_and_or(sd, KS_CHROMB, 0x0f, reg_defaults[KS_CHROMB]&0xf0); ks0127_and_or(sd, KS_CON, 0x00, 0x00); ks0127_and_or(sd, KS_BRT, 0x00, 32); /* spec: 34 */ /* spec: 229 (e5) */ ks0127_and_or(sd, KS_SAT, 0x00, 0xe8); ks0127_and_or(sd, KS_HUE, 0x00, 0); ks0127_and_or(sd, KS_UGAIN, 0x00, 238); ks0127_and_or(sd, KS_VGAIN, 0x00, 0x00); /*UOFF:0x30, VOFF:0x30, TSTCGN=1 */ ks0127_and_or(sd, KS_UVOFFH, 0x00, 0x4f); ks0127_and_or(sd, KS_UVOFFL, 0x00, 0x00); break; default: v4l2_dbg(1, debug, sd, "s_routing: Unknown input %d\n", input); break; } /* hack: CDMLPF sometimes spontaneously switches on; */ /* force back off */ ks0127_write(sd, KS_DEMOD, reg_defaults[KS_DEMOD]); return 0; } static int ks0127_s_std(struct v4l2_subdev *sd, v4l2_std_id std) { struct ks0127 *ks = to_ks0127(sd); /* Set to automatic SECAM/Fsc mode */ ks0127_and_or(sd, KS_DEMOD, 0xf0, 0x00); ks->norm = std; if (std & V4L2_STD_NTSC) { v4l2_dbg(1, debug, sd, "s_std: NTSC_M\n"); ks0127_and_or(sd, KS_CHROMA, 0x9f, 0x20); } else if (std & V4L2_STD_PAL_N) { v4l2_dbg(1, debug, sd, "s_std: NTSC_N (fixme)\n"); ks0127_and_or(sd, KS_CHROMA, 0x9f, 0x40); } else if (std & V4L2_STD_PAL) { v4l2_dbg(1, debug, sd, "s_std: PAL_N\n"); ks0127_and_or(sd, KS_CHROMA, 0x9f, 0x20); } else if (std & V4L2_STD_PAL_M) { v4l2_dbg(1, debug, sd, "s_std: PAL_M (fixme)\n"); ks0127_and_or(sd, KS_CHROMA, 0x9f, 0x40); } else if (std & V4L2_STD_SECAM) { v4l2_dbg(1, debug, sd, "s_std: SECAM\n"); /* set to secam autodetection */ ks0127_and_or(sd, KS_CHROMA, 0xdf, 0x20); ks0127_and_or(sd, KS_DEMOD, 0xf0, 0x00); schedule_timeout_interruptible(HZ/10+1); /* did it autodetect? */ if (!(ks0127_read(sd, KS_DEMOD) & 0x40)) /* force to secam mode */ ks0127_and_or(sd, KS_DEMOD, 0xf0, 0x0f); } else { v4l2_dbg(1, debug, sd, "s_std: Unknown norm %llx\n", (unsigned long long)std); } return 0; } static int ks0127_s_stream(struct v4l2_subdev *sd, int enable) { v4l2_dbg(1, debug, sd, "s_stream(%d)\n", enable); if (enable) { /* All output pins on */ ks0127_and_or(sd, KS_OFMTA, 0xcf, 0x30); /* Obey the OEN pin */ ks0127_and_or(sd, KS_CDEM, 0x7f, 0x00); } else { /* Video output pins off */ ks0127_and_or(sd, KS_OFMTA, 0xcf, 0x00); /* Ignore the OEN pin */ ks0127_and_or(sd, KS_CDEM, 0x7f, 0x80); } return 0; } static int ks0127_status(struct v4l2_subdev *sd, u32 *pstatus, v4l2_std_id *pstd) { int stat = V4L2_IN_ST_NO_SIGNAL; u8 status; v4l2_std_id std = pstd ? *pstd : V4L2_STD_ALL; status = ks0127_read(sd, KS_STAT); if (!(status & 0x20)) /* NOVID not set */ stat = 0; if (!(status & 0x01)) { /* CLOCK set */ stat |= V4L2_IN_ST_NO_COLOR; std = V4L2_STD_UNKNOWN; } else { if ((status & 0x08)) /* PALDET set */ std &= V4L2_STD_PAL; else std &= V4L2_STD_NTSC; } if ((status & 0x10)) /* PALDET set */ std &= V4L2_STD_525_60; else std &= V4L2_STD_625_50; if (pstd) *pstd = std; if (pstatus) *pstatus = stat; return 0; } static int ks0127_querystd(struct v4l2_subdev *sd, v4l2_std_id *std) { v4l2_dbg(1, debug, sd, "querystd\n"); return ks0127_status(sd, NULL, std); } static int ks0127_g_input_status(struct v4l2_subdev *sd, u32 *status) { v4l2_dbg(1, debug, sd, "g_input_status\n"); return ks0127_status(sd, status, NULL); } /* ----------------------------------------------------------------------- */ static const struct v4l2_subdev_video_ops ks0127_video_ops = { .s_std = ks0127_s_std, .s_routing = ks0127_s_routing, .s_stream = ks0127_s_stream, .querystd = ks0127_querystd, .g_input_status = ks0127_g_input_status, }; static const struct v4l2_subdev_ops ks0127_ops = { .video = &ks0127_video_ops, }; /* ----------------------------------------------------------------------- */ static int ks0127_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct ks0127 *ks; struct v4l2_subdev *sd; v4l_info(client, "%s chip found @ 0x%x (%s)\n", client->addr == (I2C_KS0127_ADDON >> 1) ? "addon" : "on-board", client->addr << 1, client->adapter->name); ks = devm_kzalloc(&client->dev, sizeof(*ks), GFP_KERNEL); if (ks == NULL) return -ENOMEM; sd = &ks->sd; v4l2_i2c_subdev_init(sd, client, &ks0127_ops); /* power up */ init_reg_defaults(); ks0127_write(sd, KS_CMDA, 0x2c); mdelay(10); /* reset the device */ ks0127_init(sd); return 0; } static int ks0127_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); v4l2_device_unregister_subdev(sd); ks0127_write(sd, KS_OFMTA, 0x20); /* tristate */ ks0127_write(sd, KS_CMDA, 0x2c | 0x80); /* power down */ return 0; } static const struct i2c_device_id ks0127_id[] = { { "ks0127", 0 }, { "ks0127b", 0 }, { "ks0122s", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, ks0127_id); static struct i2c_driver ks0127_driver = { .driver = { .name = "ks0127", }, .probe = ks0127_probe, .remove = ks0127_remove, .id_table = ks0127_id, }; module_i2c_driver(ks0127_driver);