--- /dev/null
+/*
+ * 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 = {
+ .owner = THIS_MODULE,
+ .name = "ks0127",
+ },
+ .probe = ks0127_probe,
+ .remove = ks0127_remove,
+ .id_table = ks0127_id,
+};
+
+module_i2c_driver(ks0127_driver);
Code Review / kvmfornfv.git / blobdiff