/* bt869.c - Part of lm_sensors, Linux kernel modules for hardware monitoring Copyright (c) 1998, 1999 Frodo Looijaard Copyright (c) 2001, 2002 Stephen Davies 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ #define DEBUG 1 #include #include #include #include #include "sensors.h" #include "version.h" #include #ifdef MODULE_LICENSE MODULE_LICENSE("GPL"); #endif #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,2,18)) || \ (LINUX_VERSION_CODE == KERNEL_VERSION(2,3,0)) #define init_MUTEX(s) do { *(s) = MUTEX; } while(0) #endif #ifndef THIS_MODULE #define THIS_MODULE NULL #endif /* Addresses to scan */ static unsigned short normal_i2c[] = { SENSORS_I2C_END }; /* found only at 0x44 or 0x45 */ static unsigned short normal_i2c_range[] = { 0x44, 0x45, SENSORS_I2C_END }; static unsigned int normal_isa[] = { SENSORS_ISA_END }; static unsigned int normal_isa_range[] = { SENSORS_ISA_END }; /* Insmod parameters */ SENSORS_INSMOD_1(bt869); /* Many bt869 constants specified below */ /* The bt869 registers */ /* Coming soon: Many, many registers */ /* Conversions. Rounding and limit checking is only done on the TO_REG variants. Note that you should be a bit careful with which arguments these macros are called: arguments may be evaluated more than once. Fixing this is just not worth it. */ /*none */ /* Initial values */ /*none*/ /* Each client has this additional data */ struct bt869_data { int sysctl_id; struct semaphore update_lock; char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ u8 status[3]; /* Register values */ u16 res[2]; /* Resolution XxY */ u8 ntsc; /* 1=NTSC, 0=PAL */ u8 half; /* go half res */ u8 depth; /* screen depth */ u8 colorbars; /* turn on/off colorbar calibration screen */ u8 svideo; /* output format: (2=RGB) 1=SVIDEO, 0=Composite */ }; #ifdef MODULE extern int init_module(void); extern int cleanup_module(void); #endif /* MODULE */ #ifdef MODULE static #else extern #endif int __init sensors_bt869_init(void); static int __init bt869_cleanup(void); static int bt869_attach_adapter(struct i2c_adapter *adapter); static int bt869_detect(struct i2c_adapter *adapter, int address, unsigned short flags, int kind); static void bt869_init_client(struct i2c_client *client); static int bt869_detach_client(struct i2c_client *client); static int bt869_command(struct i2c_client *client, unsigned int cmd, void *arg); static void bt869_inc_use(struct i2c_client *client); static void bt869_dec_use(struct i2c_client *client); static int bt869_read_value(struct i2c_client *client, u8 reg); static int bt869_write_value(struct i2c_client *client, u8 reg, u16 value); static void bt869_write_values(struct i2c_client *client, u16 *values); static void bt869_status(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void bt869_ntsc(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void bt869_res(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void bt869_half(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void bt869_colorbars(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void bt869_svideo(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void bt869_depth(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void bt869_update_client(struct i2c_client *client); /* This is the driver that will be inserted */ static struct i2c_driver bt869_driver = { /* name */ "BT869 video-output chip driver", /* id */ I2C_DRIVERID_BT869, /* flags */ I2C_DF_NOTIFY, /* attach_adapter */ &bt869_attach_adapter, /* detach_client */ &bt869_detach_client, /* command */ &bt869_command, /* inc_use */ &bt869_inc_use, /* dec_use */ &bt869_dec_use }; /* These files are created for each detected bt869. This is just a template; though at first sight, you might think we could use a statically allocated list, we need some way to get back to the parent - which is done through one of the 'extra' fields which are initialized when a new copy is allocated. */ static ctl_table bt869_dir_table_template[] = { {BT869_SYSCTL_STATUS, "status", NULL, 0, 0444, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &bt869_status}, {BT869_SYSCTL_NTSC, "ntsc", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &bt869_ntsc}, {BT869_SYSCTL_RES, "res", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &bt869_res}, {BT869_SYSCTL_HALF, "half", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &bt869_half}, {BT869_SYSCTL_COLORBARS, "colorbars", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &bt869_colorbars}, {BT869_SYSCTL_DEPTH, "depth", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &bt869_depth}, {BT869_SYSCTL_SVIDEO, "svideo", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &bt869_svideo}, {0} }; /* ****************** 720x576, 27.5MHz, PAL, no overscan compensation. This mode should be use for digital video, DVD playback etc. NOTE: This mode for PAL, see 720x480 for an equivalent NTSC mode NOTE: -- Steve Davies Compatible X modeline: Mode "720x576-BT869" DotClock 27.5 HTimings 720 744 800 880 VTimings 576 581 583 625 EndMode 625LINE=1 625 line output format BST_AMP[7:0]=x57 87 Burst ampl. multiplication factor (PAL std??) BY_PLL=0 Use the PLL CATTENUATE[2:0]=0 No chroma attenuation CCF1B1[7:0]=0 close caption stuff CCF1B2[7:0]=0 close caption stuff CCF2B1[7:0]=0 close caption stuff CCF2B2[7:0]=0 close caption stuff CCORING[2:0]=0 Bypass chroma coring CCR_START[8:0]=0 [CCR_START[8]=0; CCR_START[7:0]=0] Close-caption clock runin start from hsync CC_ADD[11:0]=xD2 210 [CC_ADD[11:8]=0; CC_ADD[7:0]=xD2] Close-caption DTO increment CHECK_STAT=0 Don't check monitor status CLPF[1:0]=0 Hoz chroma lowpass filter=Bypass DACDISA=1 Disable DACA DACDISB=0 Don't disable DACB DACDISC=0 Don't disable DACC DACOFF=0 Don't disable the DACs DATDLY = 0 normal DATSWP=0 normal DCHROMA=0 Don't blank chroma DIS_FFILT=1 Disable flickerfilter DIS_GMSHC=1 Disable chroma psuedo-gamma removal DIS_GMSHY=1 Disable luma pseudo gamma removal DIS_GMUSHC=1 Disable chroma anti-pseudo gamma removal DIS_GMUSHY=1 Disable luma anti-pseudo gamma removal DIS_SCRESET=0 Normal subcarrier phase resets DIS_YFLPF=0 Disable Luma initial hoz low pass filter DIV2=0 Input pixel rate not divided by 2 ECBAR=0 No colour bars ECCF1=0 Disable closed caption ECCF2=0 Disable closed caption ECCGATE=0 Normal close caption encoding ECLIP=0 0=disable clipping EN_ASYNC=0 set to 0 for normal operation EN_BLANKO=0 BLANK is an input EN_DOT=0 Disables dot clock sync on BLANK pin EN_OUT=1 Allows outputs to be enabled EN_XCLK=1 Use CLKI pin as clock source ESTATUS[1:0]=0 Used to select readback register FIELDI=0 Logical 1 on FIELD indicates even field F_SELC[2:0]=0 5 line chroma flickerfilter F_SELY[2:0]=0 5 line luma flickerfilter HBURST_BEGIN[7:0]=x98 152 Chroma burst start point in clocks HBURST_END[7:0]=x58 88 Chroma burst end point in clocks - 128 HSYNCI=0 Active low HSYNC HSYNC_WIDTH[7:0]=x80 128 Analogue sync width in clocks HSYNOFFSET[9:0]=0 [HSYNOFFSET[9:8]=0; HSYNOFFSET[7:0]=0] hsync in "standard position" HSYNWIDTH[5:0]=2 2 pixel hsync width H_ACTIVE[9:0]=x2D0 720 [H_ACTIVE[9:8]=2; H_ACTIVE[7:0]=xD0] Active pixels per line H_BLANKI[8:0]=x84 132 [H_BLANKI[8]=0; H_BLANKI[7:0]=x84] End of blanking of input video H_BLANKO[9:0]=x120 288 [H_BLANKO[9:8]=1; H_BLANKO[7:0]=x20] End of blanking from hoz sync leading edge H_CLKI[10:0]=x378 888 [H_CLKI[10:8]=3; H_CLKI[7:0]=x78] Input line length total in clocks H_CLKO[11:0]=x6e0 1760 [H_CLKO[11:8]=6; H_CLKO[7:0]=xe0] Output clocks per line H_FRACT[7:0]=0 0 fractional input clocks per line IN_MODE[2:0]=0 24Bit RGB muxed LUMADLY[1:0]=0 0 pixel delay on Y_DLY luma MCB[7:0]=x49 73 Mult factor for CB prior to subcarrier mod. MCR[7:0]=x82 130 Mult factor for CR prior to subcarrier mod. MODE2X=0 Don't divide clock input by 2 MSC[31:0]=x2945E0B4 692445365 [MSC[31:24]=x29; MSC[23:16]=x45; MSC[15:8]=xE0; MSC[7:0]=xB4] Subcarrier incr. MY[7:0]=x8C 140 Mult factor for Y NI_OUT=0 Normal interlaced output OUT_MODE[1:0]=0 video0-3 is CVBS, Y, C, Y_DLY OUT_MUXA[1:0]=0 Don't care as DACA is disabled OUT_MUXB[1:0]=1 Output video[1] (Y) on DACB OUT_MUXC[1:0]=2 Output video[2] (C) on DACC PAL_MD=1 Video output in PAL mode PHASE_OFF[7:0]=0 Subcarrier phase offset PLL_FRACT[15:0]=x30 48 [PLL_FRACT[15:8]=0x0; PLL_FRACT[7:0]=x30] frac portion of pll multiplier PLL_INT[5:0]=0x0C 12 Int portion of pll multiplier SETUP=0 7.5-IRE setup disabled SLAVER=1 SRESET=0 Don't do a software reset SYNC_AMP[7:0]=xF0 240 Sync amp mult. factor (PAL std???) VBLANKDLY=0 Extra line of blanking in 2nd field? VSYNCI=0 Active low VSYNC VSYNC_DUR=0 2.5line VSYNC duration on output VSYNCOFFSET[10:0]=0 [VSYNOFFSET[10:8]=0; VSYNOFFSET[7:0]=0] VSYNC in standard position VSYNWIDTH[2:0]=1 1 line of vsync width V_ACTIVEI[9:0]=x240 576 [V_ACTIVEI[9:0]=2; V_ACTIVEI[7:0]=x40] Active input lines V_ACTIVEO[8:0]=x122 290 [V_ACTIVE0[8]=1; V_ACTIVEO[7:0]=x22] V_BLANKI[7:0]=x2A 42 Input lines from vsync to first active line V_BLANKO[7:0]=x16 22 V_LINESI[9:0]=x271 625 [V_LINESI[9:8]=2; V_LINESI[7:0]=x71] Number of input lines V_SCALE[13:0]=x1000 4096 [V_SCALE[13:8]=x10; V_SCALE[7:0]=0] Vert scale coefficient="none"? YATTENUATE[2:0]=0 no luma attenuation YCORING[2:0]=0 Luma-coring bypass YLPF[1:0]=0 Luma hoz low pass filter=bypass ***************** */ static u16 registers_720_576[] = { 0x6e, 0x00, /* HSYNOFFSET[7:0]=0 */ 0x70, 0x02, /* HSYNOFFSET[9:8]=0; HSYNWIDTH[5:0]=2 */ 0x72, 0x00, /* VSYNOFFSET[7:0]=0 */ 0x74, 0x01, /* DATDLY = 0; DATSWP=0; VSYNOFFSET[10:8]=0; VSYNWIDTH[2:0]=1 */ 0x76, 0xe0, /* H_CLKO[7:0]=xe0 */ 0x78, 0xd0, /* H_ACTIVE[7:0]=xD0 */ 0x7a, 0x80, /* HSYNC_WIDTH[7:0]=x80 */ 0x7c, 0x98, /* HBURST_BEGIN[7:0]=x98 */ 0x7e, 0x58, /* HBURST_END[7:0]=x58 */ 0x80, 0x20, /* H_BLANKO[7:0]=x20 */ 0x82, 0x16, /* V_BLANKO[7:0]=x16 */ 0x84, 0x22, /* V_ACTIVEO[7:0]=x22 */ 0x86, 0xa6, /* V_ACTIVE0[8]=1; H_ACTIVE[9:8]=2; H_CLKO[11:8]=6 */ 0x88, 0x00, /* H_FRACT[7:0]=0 */ 0x8a, 0x78, /* H_CLKI[7:0]=x78 */ 0x8c, 0x80, /* H_BLANKI[7:0]=x84 */ 0x8e, 0x03, /* VBLANKDLY=0; H_BLANKI[8]=0; H_CLKI[10:8]=3 */ 0x90, 0x71, /* V_LINESI[7:0]=x71 */ 0x92, 0x2a, /* V_BLANKI[7:0]=x2A */ 0x94, 0x40, /* V_ACTIVEI[7:0]=x40 */ 0x96, 0x0a, /* CLPF[1:0]=0; YLPF[1:0]=0; V_ACTIVEI[9:0]=2; V_LINESI[9:8]=2 */ 0x98, 0x00, /* V_SCALE[7:0]=0 */ 0x9a, 0x50, /* H_BLANKO[9:8]=1; V_SCALE[13:8]=x10 */ 0x9c, 0x30, /* PLL_FRACT[7:0]=x30 */ 0x9e, 0x0, /* PLL_FRACT[15:8]=0x0 */ 0xa0, 0x8c, /* EN_XCLK=1; BY_PLL=0; PLL_INT[5:0]=0x0C */ 0xa2, 0x24, /* ECLIP=0; PAL_MD=1; DIS_SCRESET=0; VSYNC_DUR=0; 625LINE=1; SETUP=0; NI_OUT=0 */ 0xa4, 0xf0, /* SYNC_AMP[7:0]=xF0 */ 0xa6, 0x57, /* BST_AMP[7:0]=x57 */ 0xa8, 0x82, /* MCR[7:0]=x82 */ 0xaa, 0x49, /* MCB[7:0]=x49 */ 0xac, 0x8c, /* MY[7:0]=x8C */ 0xae, 0xb4, /* MSC[7:0]=xb4 */ 0xb0, 0xe0, /* MSC[15:8]=xe0 */ 0xb2, 0x45, /* MSC[23:16]=x45 */ 0xb4, 0x29, /* MSC[31:24]=x29 */ 0xb6, 0x00, /* PHASE_OFF[7:0]=0 */ //0xba, 0x21, /* SRESET=0; CHECK_STAT=0; SLAVER=1; DACOFF=0; DACDISC=0; DACDISB=0; DACDISA=1 */ 0xc4, 0x01, /* ESTATUS[1:0]=0; ECCF2=0; ECCF1=0; ECCGATE=0; ECBAR=0; DCHROMA=0; EN_OUT=1 */ 0xc6, 0x00, /* EN_BLANKO=0; EN_DOT=0; FIELDI=0; VSYNCI=0; HSYNCI=0; IN_MODE[2:0]=0(24bRGB) */ 0xc8, 0x40, /* DIS_YFLPF=0; DIS_FFILT=1; F_SELC[2:0]=0; F_SELY[2:0]=0 */ 0xca, 0xc0, /* DIS_GMUSHY=1; DIS_GMSHY=1; YCORING[2:0]=0; YATTENUATE[2:0]=0 */ 0xcc, 0xc0, /* DIS_GMUSHC=1; DIS_GMSHC=1; CCORING[2:0]=0; CATTENUATE[2:0]=0 */ //0xce, 0x24, /* OUT_MUXC=2 [C]; OUT_MUXB=1 [Y]; OUT_MUXA=0 [CVBS, but disabled]*/ //0xce, 0x04, /* OUT_MUXC=0 [CVBS]; OUT_MUXB=1 [Y]; OUT_MUXA=0 [CVBS, but disabled]*/ 0xd6, 0x00, /* OUT_MODE[1:0]=0; LUMADLY[1:0]=0 */ 0, 0 }; /* ****************** 720x480, 27.5MHz, NTSC no overscan compensation. This mode should be use for digital video, DVD playback etc. NOTE: This mode for NTSC, see 720x576 for an equivalent PAL mode NOTE: -- Steve Davies Compatible X modeline: Mode "720x480-BT869" DotClock 27.5 HTimings 720 744 800 872 VTimings 480 483 485 525 EndMode 625LINE=0 not 625 line output format BST_AMP[7:0]=x74 116 Burst ampl. multiplication factor (NTSC std??) BY_PLL=0 Use the PLL CATTENUATE[2:0]=0 No chroma attenuation CCF1B1[7:0]=0 close caption stuff CCF1B2[7:0]=0 close caption stuff CCF2B1[7:0]=0 close caption stuff CCF2B2[7:0]=0 close caption stuff CCORING[2:0]=0 Bypass chroma coring CCR_START[8:0]=0 [CCR_START[8]=0; CCR_START[7:0]=0] Close-caption clock runin start from hsync CC_ADD[11:0]=xD2 210 [CC_ADD[11:8]=0; CC_ADD[7:0]=xD2] Close-caption DTO increment CHECK_STAT=0 Don't check monitor status CLPF[1:0]=0 Hoz chroma lowpass filter=Bypass DACDISA=1 Disable DACA DACDISB=0 Don't disable DACB DACDISC=0 Don't disable DACC DACOFF=0 Don't disable the DACs DATDLY = 0 normal DATSWP=0 normal DCHROMA=0 Don't blank chroma DIS_FFILT=1 Disable flickerfilter DIS_GMSHC=1 Disable chroma psuedo-gamma removal DIS_GMSHY=1 Disable luma pseudo gamma removal DIS_GMUSHC=1 Disable chroma anti-pseudo gamma removal DIS_GMUSHY=1 Disable luma anti-pseudo gamma removal DIS_SCRESET=0 Normal subcarrier phase resets DIS_YFLPF=0 Disable Luma initial hoz low pass filter DIV2=0 Input pixel rate not divided by 2 ECBAR=0 No colour bars ECCF1=0 Disable closed caption ECCF2=0 Disable closed caption ECCGATE=0 Normal close caption encoding ECLIP=0 0=disable clipping EN_ASYNC=0 set to 0 for normal operation EN_BLANKO=0 BLANK is an input EN_DOT=0 Disables dot clock sync on BLANK pin EN_OUT=1 Allows outputs to be enabled EN_XCLK=1 Use CLKI pin as clock source ESTATUS[1:0]=0 Used to select readback register FIELDI=0 Logical 1 on FIELD indicates even field F_SELC[2:0]=0 5 line chroma flickerfilter F_SELY[2:0]=0 5 line luma flickerfilter HBURST_BEGIN[7:0]=x92 146 Chroma burst start point in clocks HBURST_END[7:0]=x57 87 Chroma burst end point in clocks - 128 HSYNCI=0 Active low HSYNC HSYNC_WIDTH[7:0]=x80 128 Analogue sync width in clocks HSYNOFFSET[9:0]=0 [HSYNOFFSET[9:8]=0; HSYNOFFSET[7:0]=0] hsync in "standard position" HSYNWIDTH[5:0]=2 2 pixel hsync width H_ACTIVE[9:0]=x2D0 720 [H_ACTIVE[9:8]=2; H_ACTIVE[7:0]=xD0] Active pixels per line H_BLANKI[8:0]=x80 128 [H_BLANKI[8]=0; H_BLANKI[7:0]=x80] End of blanking of input video H_BLANKO[9:0]=x102 258 [H_BLANKO[9:8]=1; H_BLANKO[7:0]=x2] End of blanking from hoz sync leading edge H_CLKI[10:0]=x368 872 [H_CLKI[10:8]=3; H_CLKI[7:0]=x68] Input line length total in clocks H_CLKO[11:0]=x6d0 1744 [H_CLKO[11:8]=6; H_CLKO[7:0]=xD0] Output clocks per line H_FRACT[7:0]=0 0 fractional input clocks per line IN_MODE[2:0]=0 24Bit RGB muxed LUMADLY[1:0]=0 0 pixel delay on Y_DLY luma MCB[7:0]=x43 67 Mult factor for CB prior to subcarrier mod. MCR[7:0]=x77 119 Mult factor for CR prior to subcarrier mod. MODE2X=0 Don't divide clock input by 2 MSC[31:0]=x215282E5 559055589 [MSC[31:24]=x21; MSC[23:16]=x52; MSC[15:8]=x82; MSC[7:0]=xE5] Subcarrier incr. MY[7:0]=x85 133 Mult factor for Y NI_OUT=0 Normal interlaced output OUT_MODE[1:0]=0 video0-3 is CVBS, Y, C, Y_DLY OUT_MUXA[1:0]=0 Don't care as DACA is disabled OUT_MUXB[1:0]=1 Output video[1] (Y) on DACB OUT_MUXC[1:0]=2 Output video[2] (C) on DACC PAL_MD=0 Video output in PAL mode? No. PHASE_OFF[7:0]=0 Subcarrier phase offset PLL_FRACT[15:0]=x30 48 [PLL_FRACT[15:8]=0x0; PLL_FRACT[7:0]=x30] frac portion of pll multiplier PLL_INT[5:0]=0x0C 12 Int portion of pll multiplier SETUP=1 7.5-IRE enabled for NTSC SLAVER=1 SRESET=0 Don't do a software reset SYNC_AMP[7:0]=xE5 229 Sync amp mult. factor (PAL std???) VBLANKDLY=0 Extra line of blanking in 2nd field? VSYNCI=0 Active low VSYNC VSYNC_DUR=1 2.5line VSYNC duration on output (Yes for NTSC) VSYNCOFFSET[10:0]=0 [VSYNOFFSET[10:8]=0; VSYNOFFSET[7:0]=0] VSYNC in standard position VSYNWIDTH[2:0]=1 1 line of vsync width V_ACTIVEI[9:0]=x1E0 480 [V_ACTIVEI[9:0]=1; V_ACTIVEI[7:0]=xE0] Active input lines V_ACTIVEO[8:0]=xF0 240 [V_ACTIVE0[8]=0; V_ACTIVEO[7:0]=xF0] V_BLANKI[7:0]=x2A 42 Input lines from vsync to first active line V_BLANKO[7:0]=x16 22 V_LINESI[9:0]=x20D 525 [V_LINESI[9:8]=2; V_LINESI[7:0]=x0D] Number of input lines V_SCALE[13:0]=x1000 4096 [V_SCALE[13:8]=x10; V_SCALE[7:0]=0] Vert scale coefficient="none"? YATTENUATE[2:0]=0 no luma attenuation YCORING[2:0]=0 Luma-coring bypass YLPF[1:0]=0 Luma hoz low pass filter=bypass ***************** */ static u16 registers_720_480[] = { 0x6e, 0x00, /* HSYNOFFSET[7:0]=0 */ 0x70, 0x02, /* HSYNOFFSET[9:8]=0; HSYNWIDTH[5:0]=2 */ 0x72, 0x00, /* VSYNOFFSET[7:0]=0 */ 0x74, 0x01, /* DATDLY = 0; DATSWP=0; VSYNOFFSET[10:8]=0; VSYNWIDTH[2:0]=1 */ 0x76, 0xD0, /* H_CLKO[7:0]=xD0 */ 0x78, 0xD0, /* H_ACTIVE[7:0]=xD0 */ 0x7a, 0x80, /* HSYNC_WIDTH[7:0]=x80 */ 0x7c, 0x92, /* HBURST_BEGIN[7:0]=x92 */ 0x7e, 0x57, /* HBURST_END[7:0]=x57 */ 0x80, 0x02, /* H_BLANKO[7:0]=x2 */ 0x82, 0x16, /* V_BLANKO[7:0]=x16 */ 0x84, 0xF0, /* V_ACTIVEO[7:0]=xF0 */ 0x86, 0x26, /* V_ACTIVE0[8]=0; H_ACTIVE[9:8]=2; H_CLKO[11:8]=6 */ 0x88, 0x00, /* H_FRACT[7:0]=0 */ 0x8a, 0xD0, /* H_CLKI[7:0]=xD0 */ 0x8c, 0x80, /* H_BLANKI[7:0]=x80 */ 0x8e, 0x03, /* VBLANKDLY=0; H_BLANKI[8]=0; H_CLKI[10:8]=3 */ 0x90, 0x0D, /* V_LINESI[7:0]=x0D */ 0x92, 0x2A, /* V_BLANKI[7:0]=x2A */ 0x94, 0xE0, /* V_ACTIVEI[7:0]=xE0 */ 0x96, 0x06, /* CLPF[1:0]=0; YLPF[1:0]=0; V_ACTIVEI[9:8]=1; V_LINESI[9:8]=2 */ 0x98, 0x00, /* V_SCALE[7:0]=0 */ 0x9a, 0x50, /* H_BLANKO[9:8]=1; V_SCALE[13:8]=x10 */ 0x9c, 0x30, /* PLL_FRACT[7:0]=x30 */ 0x9e, 0x0, /* PLL_FRACT[15:8]=0x0 */ 0xa0, 0x8c, /* EN_XCLK=1; BY_PLL=0; PLL_INT[5:0]=0x0C */ 0xa2, 0x0A, /* ECLIP=0; PAL_MD=0; DIS_SCRESET=0; VSYNC_DUR=1; 625LINE=0; SETUP=1; NI_OUT=0 */ 0xa4, 0xE5, /* SYNC_AMP[7:0]=xE5 */ 0xa6, 0x74, /* BST_AMP[7:0]=x74 */ 0xa8, 0x77, /* MCR[7:0]=x77 */ 0xaa, 0x43, /* MCB[7:0]=x43 */ 0xac, 0x85, /* MY[7:0]=x85 */ 0xae, 0xE5, /* MSC[7:0]=xE5 */ 0xb0, 0x82, /* MSC[15:8]=x82 */ 0xb2, 0x52, /* MSC[23:16]=x52 */ 0xb4, 0x21, /* MSC[31:24]=x21 */ 0xb6, 0x00, /* PHASE_OFF[7:0]=0 */ //0xba, 0x21, /* SRESET=0; CHECK_STAT=0; SLAVER=1; DACOFF=0; DACDISC=0; DACDISB=0; DACDISA=1 */ 0xc4, 0x01, /* ESTATUS[1:0]=0; ECCF2=0; ECCF1=0; ECCGATE=0; ECBAR=0; DCHROMA=0; EN_OUT=1 */ 0xc6, 0x00, /* EN_BLANKO=0; EN_DOT=0; FIELDI=0; VSYNCI=0; HSYNCI=0; IN_MODE[2:0]=0(24bRGB) */ 0xc8, 0x40, /* DIS_YFLPF=0; DIS_FFILT=1; F_SELC[2:0]=0; F_SELY[2:0]=0 */ 0xca, 0xc0, /* DIS_GMUSHY=1; DIS_GMSHY=1; YCORING[2:0]=0; YATTENUATE[2:0]=0 */ 0xcc, 0xc0, /* DIS_GMUSHC=1; DIS_GMSHC=1; CCORING[2:0]=0; CATTENUATE[2:0]=0 */ //0xce, 0x24, /* OUT_MUXC=2 [C]; OUT_MUXB=1 [Y]; OUT_MUXA=0 [CVBS, but disabled]*/ //0xce, 0x04, /* OUT_MUXC=0 [CVBS]; OUT_MUXB=1 [Y]; OUT_MUXA=0 [CVBS, but disabled]*/ 0xd6, 0x00, /* OUT_MODE[1:0]=0; LUMADLY[1:0]=0 */ 0, 0 }; /* Used by init/cleanup */ static int __initdata bt869_initialized = 0; int bt869_id = 0; int bt869_attach_adapter(struct i2c_adapter *adapter) { return i2c_detect(adapter, &addr_data, bt869_detect); } /* This function is called by i2c_detect */ int bt869_detect(struct i2c_adapter *adapter, int address, unsigned short flags, int kind) { int i, cur; struct i2c_client *new_client; struct bt869_data *data; int err = 0; const char *type_name, *client_name; printk("bt869.o: probing address %d .\n", address); /* Make sure we aren't probing the ISA bus!! This is just a safety check at this moment; i2c_detect really won't call us. */ #ifdef DEBUG if (i2c_is_isa_adapter(adapter)) { printk ("bt869.o: bt869_detect called for an ISA bus adapter?!?\n"); return 0; } #endif if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) goto ERROR0; /* OK. For now, we presume we have a valid client. We now create the client structure, even though we cannot fill it completely yet. But it allows us to access bt869_{read,write}_value. */ if (!(new_client = kmalloc(sizeof(struct i2c_client) + sizeof(struct bt869_data), GFP_KERNEL))) { err = -ENOMEM; goto ERROR0; } data = (struct bt869_data *) (((struct i2c_client *) new_client) + 1); new_client->addr = address; new_client->data = data; new_client->adapter = adapter; new_client->driver = &bt869_driver; new_client->flags = 0; /* Now, we do the remaining detection. It is lousy. */ i2c_smbus_write_byte_data(new_client, 0xC4, 0); /* set status bank 0 */ cur = i2c_smbus_read_byte(new_client); printk("bt869.o: address 0x%X testing-->0x%X\n", address, cur); if ((cur & 0xE0) != 0x20) goto ERROR1; /* Determine the chip type */ kind = ((cur & 0x20) >> 5); if (kind) { type_name = "bt869"; client_name = "bt869 chip"; printk("bt869.o: BT869 detected\n"); } else { type_name = "bt868"; client_name = "bt868 chip"; printk("bt869.o: BT868 detected\n"); } /* Fill in the remaining client fields and put it into the global list */ strcpy(new_client->name, client_name); new_client->id = bt869_id++; data->valid = 0; init_MUTEX(&data->update_lock); /* Tell the I2C layer a new client has arrived */ if ((err = i2c_attach_client(new_client))) goto ERROR3; /* Register a new directory entry with module sensors */ if ((i = i2c_register_entry(new_client, type_name, bt869_dir_table_template, THIS_MODULE)) < 0) { err = i; goto ERROR4; } data->sysctl_id = i; bt869_init_client((struct i2c_client *) new_client); return 0; /* OK, this is not exactly good programming practice, usually. But it is very code-efficient in this case. */ ERROR4: i2c_detach_client(new_client); ERROR3: ERROR1: kfree(new_client); ERROR0: return err; } int bt869_detach_client(struct i2c_client *client) { int err; i2c_deregister_entry(((struct bt869_data *) (client->data))-> sysctl_id); if ((err = i2c_detach_client(client))) { printk ("bt869.o: Client deregistration failed, client not detached.\n"); return err; } kfree(client); return 0; } /* No commands defined yet */ int bt869_command(struct i2c_client *client, unsigned int cmd, void *arg) { return 0; } /* Nothing here yet */ void bt869_inc_use(struct i2c_client *client) { #ifdef MODULE MOD_INC_USE_COUNT; #endif } /* Nothing here yet */ void bt869_dec_use(struct i2c_client *client) { #ifdef MODULE MOD_DEC_USE_COUNT; #endif } /* All registers are byte-sized. bt869 uses a high-byte first convention, which is exactly opposite to the usual practice. */ int bt869_read_value(struct i2c_client *client, u8 reg) { return i2c_smbus_read_byte(client); } /* All registers are byte-sized. bt869 uses a high-byte first convention, which is exactly opposite to the usual practice. */ int bt869_write_value(struct i2c_client *client, u8 reg, u16 value) { #ifdef DEBUG printk("bt869.o: write_value(0x%X, 0x%X)\n", reg, value); #endif return i2c_smbus_write_byte_data(client, reg, value); } void bt869_write_values(struct i2c_client *client, u16 *values) { /* writes set of registers from array. 0,0 marks end of table */ while (*values) { bt869_write_value(client, values[0], values[1]); values += 2; } } void bt869_init_client(struct i2c_client *client) { struct bt869_data *data = client->data; /* Initialize the bt869 chip */ bt869_write_value(client, 0x0ba, 0x80); // bt869_write_value(client,0x0D6, 0x00); /* Be a slave to the clock on the Voodoo3 */ bt869_write_value(client, 0xa0, 0x80); bt869_write_value(client, 0xba, 0x20); /* depth =16bpp */ bt869_write_value(client, 0x0C6, 0x001); bt869_write_value(client, 0xC4, 1); /* Flicker free enable and config */ bt869_write_value(client, 0xC8, 0); data->res[0] = 640; data->res[1] = 480; data->ntsc = 1; data->half = 0; data->colorbars = 0; data->svideo = 0; data->depth = 16; } void bt869_update_client(struct i2c_client *client) { struct bt869_data *data = client->data; down(&data->update_lock); if ((jiffies - data->last_updated > HZ + HZ / 2) || (jiffies < data->last_updated) || !data->valid) { #ifdef DEBUG printk("Starting bt869 update\n"); #endif if ((data->res[0] == 800) && (data->res[1] == 600)) { /* 800x600 built-in mode */ bt869_write_value(client, 0xB8, (2 + (!data->ntsc))); bt869_write_value(client, 0xa0, 0x80 + 0x11); printk("bt869.o: writing into config -->0x%X\n", (2 + (!data->ntsc))); } else if ((data->res[0] == 720) && (data->res[1] == 576)) { /* 720x576 no-overscan-compensation mode suitable for PAL DVD playback */ data->ntsc = 0; /* This mode always PAL */ bt869_write_values(client, registers_720_576); } else if ((data->res[0] == 720) && (data->res[1] == 480)) { /* 720x480 no-overscan-compensation mode suitable for NTSC DVD playback */ data->ntsc = 1; /* This mode always NTSC */ bt869_write_values(client, registers_720_480); } else { /* 640x480 built-in mode */ bt869_write_value(client, 0xB8, (!data->ntsc)); bt869_write_value(client, 0xa0, 0x80 + 0x0C); printk("bt869.o: writing into config -->0x%X\n", (0 + (!data->ntsc))); if ((data->res[0] != 640) || (data->res[1] != 480)) { printk ("bt869.o: Warning: arbitrary resolutions not supported yet. Using 640x480.\n"); data->res[0] = 640; data->res[1] = 480; } } /* Set colour depth */ if ((data->depth != 24) && (data->depth != 16)) data->depth = 16; if (data->depth == 16) bt869_write_value(client, 0x0C6, 0x001); if (data->depth == 24) bt869_write_value(client, 0x0C6, 0x000); /* set "half" resolution mode */ bt869_write_value(client, 0xd4, data->half << 6); /* Set composite/svideo mode, also enable the right dacs */ switch (data->svideo) { case 2: /* RGB */ /* requires hardware mod on Voodoo3 to get all outputs, untested in practice... Feedback to steve@daviesfam.org please */ bt869_write_value(client, 0xd6, 0x0c); bt869_write_value(client, 0xce, 0x24); bt869_write_value(client, 0xba, 0x20); break; case 1: /* Svideo*/ bt869_write_value(client, 0xce, 0x24); bt869_write_value(client, 0xba, 0x21); break; default: /* Composite */ bt869_write_value(client, 0xce, 0x0); bt869_write_value(client, 0xba, 0x21); break; } /* Enable outputs */ bt869_write_value(client, 0xC4, 1); /* Issue timing reset */ bt869_write_value(client, 0x6c, 0x80); /* Read back status registers */ bt869_write_value(client, 0xC4, 1 | (data->colorbars << 2)); data->status[0] = bt869_read_value(client, 1); bt869_write_value(client, 0xC4, 0x41 | (data->colorbars << 2)); data->status[1] = bt869_read_value(client, 1); bt869_write_value(client, 0xC4, 0x81 | (data->colorbars << 2)); data->status[2] = bt869_read_value(client, 1); bt869_write_value(client, 0xC4, 0x0C1 | (data->colorbars << 2)); data->last_updated = jiffies; data->valid = 1; } up(&data->update_lock); } void bt869_status(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct bt869_data *data = client->data; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { bt869_update_client(client); results[0] = data->status[0]; results[1] = data->status[1]; results[2] = data->status[2]; *nrels_mag = 3; } else if (operation == SENSORS_PROC_REAL_WRITE) { printk ("bt869.o: Warning: write was requested on read-only proc file: status\n"); } } void bt869_ntsc(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct bt869_data *data = client->data; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { bt869_update_client(client); results[0] = data->ntsc; *nrels_mag = 1; } else if (operation == SENSORS_PROC_REAL_WRITE) { if (*nrels_mag >= 1) { data->ntsc = (results[0] > 0); } bt869_update_client(client); } } void bt869_svideo(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct bt869_data *data = client->data; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { bt869_update_client(client); results[0] = data->svideo; *nrels_mag = 1; } else if (operation == SENSORS_PROC_REAL_WRITE) { if (*nrels_mag >= 1) { data->svideo = results[0]; } bt869_update_client(client); } } void bt869_res(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct bt869_data *data = client->data; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { bt869_update_client(client); results[0] = data->res[0]; results[1] = data->res[1]; *nrels_mag = 2; } else if (operation == SENSORS_PROC_REAL_WRITE) { if (*nrels_mag >= 1) { data->res[0] = results[0]; } if (*nrels_mag >= 2) { data->res[1] = results[1]; } bt869_update_client(client); } } void bt869_half(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct bt869_data *data = client->data; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { bt869_update_client(client); results[0] = data->half; *nrels_mag = 1; } else if (operation == SENSORS_PROC_REAL_WRITE) { if (*nrels_mag >= 1) { data->half = (results[0] > 0); bt869_update_client(client); } } } void bt869_colorbars(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct bt869_data *data = client->data; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { bt869_update_client(client); results[0] = data->colorbars; *nrels_mag = 1; } else if (operation == SENSORS_PROC_REAL_WRITE) { if (*nrels_mag >= 1) { data->colorbars = (results[0] > 0); bt869_update_client(client); } } } void bt869_depth(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct bt869_data *data = client->data; if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { bt869_update_client(client); results[0] = data->depth; *nrels_mag = 1; } else if (operation == SENSORS_PROC_REAL_WRITE) { if (*nrels_mag >= 1) { data->depth = results[0]; bt869_update_client(client); } } } int __init sensors_bt869_init(void) { int res; printk("bt869.o version %s (%s)\n", LM_VERSION, LM_DATE); bt869_initialized = 0; if ((res = i2c_add_driver(&bt869_driver))) { printk ("bt869.o: Driver registration failed, module not inserted.\n"); bt869_cleanup(); return res; } bt869_initialized++; return 0; } int __init bt869_cleanup(void) { int res; if (bt869_initialized >= 1) { if ((res = i2c_del_driver(&bt869_driver))) { printk ("bt869.o: Driver deregistration failed, module not removed.\n"); return res; } bt869_initialized--; } return 0; } EXPORT_NO_SYMBOLS; #ifdef MODULE MODULE_AUTHOR ("Frodo Looijaard , Philip Edelbrock , Stephen Davies "); MODULE_DESCRIPTION("bt869 driver"); int init_module(void) { return sensors_bt869_init(); } int cleanup_module(void) { return bt869_cleanup(); } #endif /* MODULE */