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lm-sensors/kernel/chips/bt869.c
T
Jean Delvare 239b3d0344 Backport memory allocation reworking from Linux 2.6. 
git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@2445 7894878c-1315-0410-8ee3-d5d059ff63e0
2004-04-17 17:20:01 +00:00

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/*
bt869.c - Part of lm_sensors, Linux kernel modules for hardware
monitoring
Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
Copyright (c) 2001, 2002 Stephen Davies <steve@daviesfam.org>
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 <linux/module.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/i2c-proc.h>
#include <linux/init.h>
#include "version.h"
MODULE_LICENSE("GPL");
/* 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 {
struct i2c_client client;
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 */
};
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_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 = {
.owner = THIS_MODULE,
.name = "BT869 video-output chip driver",
.id = I2C_DRIVERID_BT869,
.flags = I2C_DF_NOTIFY,
.attach_adapter = bt869_attach_adapter,
.detach_client = bt869_detach_client,
};
/* -- SENSORS SYSCTL START -- */
#define BT869_SYSCTL_STATUS 1000
#define BT869_SYSCTL_NTSC 1001
#define BT869_SYSCTL_HALF 1002
#define BT869_SYSCTL_RES 1003
#define BT869_SYSCTL_COLORBARS 1004
#define BT869_SYSCTL_DEPTH 1005
#define BT869_SYSCTL_SVIDEO 1006
/* -- SENSORS SYSCTL END -- */
/* 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 <steve@daviesfam.org>
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 <steve@daviesfam.org>
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
};
int bt869_id = 0;
static 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 (!(data = kmalloc(sizeof(struct bt869_data), GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR0;
}
new_client = &data->client;
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)) < 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(data);
ERROR0:
return err;
}
static 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->data);
return 0;
}
/* All registers are byte-sized.
bt869 uses a high-byte first convention, which is exactly opposite to
the usual practice. */
static 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. */
static 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);
}
static 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;
}
}
static 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;
}
static 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);
}
}
}
static int __init sm_bt869_init(void)
{
printk("bt869.o version %s (%s)\n", LM_VERSION, LM_DATE);
return i2c_add_driver(&bt869_driver);
}
static void __exit sm_bt869_exit(void)
{
i2c_del_driver(&bt869_driver);
}
MODULE_AUTHOR
("Frodo Looijaard <frodol@dds.nl>, Philip Edelbrock <phil@netroedge.com>, Stephen Davies <steve@daviesfam.org>");
MODULE_DESCRIPTION("bt869 driver");
module_init(sm_bt869_init);
module_exit(sm_bt869_exit);
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