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linux/drivers/video/matrox/matroxfb_maven.c
Mark Brown 14674e7011 i2c: Split I2C_M_NOSTART support out of I2C_FUNC_PROTOCOL_MANGLING 
Since there are uses for I2C_M_NOSTART which are much more sensible and
standard than most of the protocol mangling functionality (the main one
being gather writes to devices where something like a register address
needs to be inserted before a block of data) create a new I2C_FUNC_NOSTART
for this feature and update all the users to use it.

Also strengthen the disrecommendation of the protocol mangling while we're
at it.

In the case of regmap-i2c we remove the requirement for mangling as
I2C_M_NOSTART is the only mangling feature which is being used.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-05-30 10:55:34 +02:00

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/*
*
* Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200, G400 and G450.
*
* (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
*
* Portions Copyright (c) 2001 Matrox Graphics Inc.
*
* Version: 1.65 2002/08/14
*
* See matroxfb_base.c for contributors.
*
*/
#include "matroxfb_maven.h"
#include "matroxfb_misc.h"
#include "matroxfb_DAC1064.h"
#include <linux/i2c.h>
#include <linux/matroxfb.h>
#include <linux/slab.h>
#include <asm/div64.h>
#define MGATVO_B 1
#define MGATVO_C 2
static const struct maven_gamma {
unsigned char reg83;
unsigned char reg84;
unsigned char reg85;
unsigned char reg86;
unsigned char reg87;
unsigned char reg88;
unsigned char reg89;
unsigned char reg8a;
unsigned char reg8b;
} maven_gamma[] = {
{ 131, 57, 223, 15, 117, 212, 251, 91, 156},
{ 133, 61, 128, 63, 180, 147, 195, 100, 180},
{ 131, 19, 63, 31, 50, 66, 171, 64, 176},
{ 0, 0, 0, 31, 16, 16, 16, 100, 200},
{ 8, 23, 47, 73, 147, 244, 220, 80, 195},
{ 22, 43, 64, 80, 147, 115, 58, 85, 168},
{ 34, 60, 80, 214, 147, 212, 188, 85, 167},
{ 45, 77, 96, 216, 147, 99, 91, 85, 159},
{ 56, 76, 112, 107, 147, 212, 148, 64, 144},
{ 65, 91, 128, 137, 147, 196, 17, 69, 148},
{ 72, 104, 136, 138, 147, 180, 245, 73, 147},
{ 87, 116, 143, 126, 16, 83, 229, 77, 144},
{ 95, 119, 152, 254, 244, 83, 221, 77, 151},
{ 100, 129, 159, 156, 244, 148, 197, 77, 160},
{ 105, 141, 167, 247, 244, 132, 181, 84, 166},
{ 105, 147, 168, 247, 244, 245, 181, 90, 170},
{ 120, 153, 175, 248, 212, 229, 165, 90, 180},
{ 119, 156, 176, 248, 244, 229, 84, 74, 160},
{ 119, 158, 183, 248, 244, 229, 149, 78, 165}
};
/* Definition of the various controls */
struct mctl {
struct v4l2_queryctrl desc;
size_t control;
};
#define BLMIN 0x0FF
#define WLMAX 0x3FF
static const struct mctl maven_controls[] =
{ { { V4L2_CID_BRIGHTNESS, V4L2_CTRL_TYPE_INTEGER,
"brightness",
0, WLMAX - BLMIN, 1, 379 - BLMIN,
0,
}, offsetof(struct matrox_fb_info, altout.tvo_params.brightness) },
{ { V4L2_CID_CONTRAST, V4L2_CTRL_TYPE_INTEGER,
"contrast",
0, 1023, 1, 127,
0,
}, offsetof(struct matrox_fb_info, altout.tvo_params.contrast) },
{ { V4L2_CID_SATURATION, V4L2_CTRL_TYPE_INTEGER,
"saturation",
0, 255, 1, 155,
0,
}, offsetof(struct matrox_fb_info, altout.tvo_params.saturation) },
{ { V4L2_CID_HUE, V4L2_CTRL_TYPE_INTEGER,
"hue",
0, 255, 1, 0,
0,
}, offsetof(struct matrox_fb_info, altout.tvo_params.hue) },
{ { V4L2_CID_GAMMA, V4L2_CTRL_TYPE_INTEGER,
"gamma",
0, ARRAY_SIZE(maven_gamma) - 1, 1, 3,
0,
}, offsetof(struct matrox_fb_info, altout.tvo_params.gamma) },
{ { MATROXFB_CID_TESTOUT, V4L2_CTRL_TYPE_BOOLEAN,
"test output",
0, 1, 1, 0,
0,
}, offsetof(struct matrox_fb_info, altout.tvo_params.testout) },
{ { MATROXFB_CID_DEFLICKER, V4L2_CTRL_TYPE_INTEGER,
"deflicker mode",
0, 2, 1, 0,
0,
}, offsetof(struct matrox_fb_info, altout.tvo_params.deflicker) },
};
#define MAVCTRLS ARRAY_SIZE(maven_controls)
/* Return: positive number: id found
-EINVAL: id not found, return failure
-ENOENT: id not found, create fake disabled control */
static int get_ctrl_id(__u32 v4l2_id) {
int i;
for (i = 0; i < MAVCTRLS; i++) {
if (v4l2_id < maven_controls[i].desc.id) {
if (maven_controls[i].desc.id == 0x08000000) {
return -EINVAL;
}
return -ENOENT;
}
if (v4l2_id == maven_controls[i].desc.id) {
return i;
}
}
return -EINVAL;
}
struct maven_data {
struct matrox_fb_info* primary_head;
struct i2c_client *client;
int version;
};
static int* get_ctrl_ptr(struct maven_data* md, int idx) {
return (int*)((char*)(md->primary_head) + maven_controls[idx].control);
}
static int maven_get_reg(struct i2c_client* c, char reg) {
char dst;
struct i2c_msg msgs[] = {{ c->addr, I2C_M_REV_DIR_ADDR, sizeof(reg), &reg },
{ c->addr, I2C_M_RD | I2C_M_NOSTART, sizeof(dst), &dst }};
s32 err;
err = i2c_transfer(c->adapter, msgs, 2);
if (err < 0)
printk(KERN_INFO "ReadReg(%d) failed\n", reg);
return dst & 0xFF;
}
static int maven_set_reg(struct i2c_client* c, int reg, int val) {
s32 err;
err = i2c_smbus_write_byte_data(c, reg, val);
if (err)
printk(KERN_INFO "WriteReg(%d) failed\n", reg);
return err;
}
static int maven_set_reg_pair(struct i2c_client* c, int reg, int val) {
s32 err;
err = i2c_smbus_write_word_data(c, reg, val);
if (err)
printk(KERN_INFO "WriteRegPair(%d) failed\n", reg);
return err;
}
static const struct matrox_pll_features maven_pll = {
50000,
27000,
4, 127,
2, 31,
3
};
struct matrox_pll_features2 {
unsigned int vco_freq_min;
unsigned int vco_freq_max;
unsigned int feed_div_min;
unsigned int feed_div_max;
unsigned int in_div_min;
unsigned int in_div_max;
unsigned int post_shift_max;
};
struct matrox_pll_ctl {
unsigned int ref_freq;
unsigned int den;
};
static const struct matrox_pll_features2 maven1000_pll = {
50000000,
300000000,
5, 128,
3, 32,
3
};
static const struct matrox_pll_ctl maven_PAL = {
540000,
50
};
static const struct matrox_pll_ctl maven_NTSC = {
450450, /* 27027000/60 == 27000000/59.94005994 */
60
};
static int matroxfb_PLL_mavenclock(const struct matrox_pll_features2* pll,
const struct matrox_pll_ctl* ctl,
unsigned int htotal, unsigned int vtotal,
unsigned int* in, unsigned int* feed, unsigned int* post,
unsigned int* h2) {
unsigned int besth2 = 0;
unsigned int fxtal = ctl->ref_freq;
unsigned int fmin = pll->vco_freq_min / ctl->den;
unsigned int fwant;
unsigned int p;
unsigned int scrlen;
unsigned int fmax;
DBG(__func__)
scrlen = htotal * (vtotal - 1);
fwant = htotal * vtotal;
fmax = pll->vco_freq_max / ctl->den;
dprintk(KERN_DEBUG "want: %u, xtal: %u, h: %u, v: %u, fmax: %u\n",
fwant, fxtal, htotal, vtotal, fmax);
for (p = 1; p <= pll->post_shift_max; p++) {
if (fwant * 2 > fmax)
break;
fwant *= 2;
}
if (fwant > fmax)
return 0;
for (; p-- > 0; fwant >>= 1) {
unsigned int m;
if (fwant < fmin) break;
for (m = pll->in_div_min; m <= pll->in_div_max; m++) {
unsigned int n;
unsigned int dvd;
unsigned int ln;
n = (fwant * m) / fxtal;
if (n < pll->feed_div_min)
continue;
if (n > pll->feed_div_max)
break;
ln = fxtal * n;
dvd = m << p;
if (ln % dvd)
continue;
ln = ln / dvd;
if (ln < scrlen + 2)
continue;
ln = ln - scrlen;
if (ln > htotal)
continue;
dprintk(KERN_DEBUG "Match: %u / %u / %u / %u\n", n, m, p, ln);
if (ln > besth2) {
dprintk(KERN_DEBUG "Better...\n");
*h2 = besth2 = ln;
*post = p;
*in = m;
*feed = n;
}
}
}
/* if h2/post/in/feed have not been assigned, return zero (error) */
if (besth2 < 2)
return 0;
dprintk(KERN_ERR "clk: %02X %02X %02X %d %d\n", *in, *feed, *post, fxtal, fwant);
return fxtal * (*feed) / (*in) * ctl->den;
}
static int matroxfb_mavenclock(const struct matrox_pll_ctl *ctl,
unsigned int htotal, unsigned int vtotal,
unsigned int* in, unsigned int* feed, unsigned int* post,
unsigned int* htotal2) {
unsigned int fvco;
unsigned int uninitialized_var(p);
fvco = matroxfb_PLL_mavenclock(&maven1000_pll, ctl, htotal, vtotal, in, feed, &p, htotal2);
if (!fvco)
return -EINVAL;
p = (1 << p) - 1;
if (fvco <= 100000000)
;
else if (fvco <= 140000000)
p |= 0x08;
else if (fvco <= 180000000)
p |= 0x10;
else
p |= 0x18;
*post = p;
return 0;
}
static void DAC1064_calcclock(unsigned int freq, unsigned int fmax,
unsigned int* in, unsigned int* feed, unsigned int* post) {
unsigned int fvco;
unsigned int p;
fvco = matroxfb_PLL_calcclock(&maven_pll, freq, fmax, in, feed, &p);
p = (1 << p) - 1;
if (fvco <= 100000)
;
else if (fvco <= 140000)
p |= 0x08;
else if (fvco <= 180000)
p |= 0x10;
else
p |= 0x18;
*post = p;
return;
}
static unsigned char maven_compute_deflicker (const struct maven_data* md) {
unsigned char df;
df = (md->version == MGATVO_B?0x40:0x00);
switch (md->primary_head->altout.tvo_params.deflicker) {
case 0:
/* df |= 0x00; */
break;
case 1:
df |= 0xB1;
break;
case 2:
df |= 0xA2;
break;
}
return df;
}
static void maven_compute_bwlevel (const struct maven_data* md,
int *bl, int *wl) {
const int b = md->primary_head->altout.tvo_params.brightness + BLMIN;
const int c = md->primary_head->altout.tvo_params.contrast;
*bl = max(b - c, BLMIN);
*wl = min(b + c, WLMAX);
}
static const struct maven_gamma* maven_compute_gamma (const struct maven_data* md) {
return maven_gamma + md->primary_head->altout.tvo_params.gamma;
}
static void maven_init_TVdata(const struct maven_data* md, struct mavenregs* data) {
static struct mavenregs palregs = { {
0x2A, 0x09, 0x8A, 0xCB, /* 00: chroma subcarrier */
0x00,
0x00, /* ? not written */
0x00, /* modified by code (F9 written...) */
0x00, /* ? not written */
0x7E, /* 08 */
0x44, /* 09 */
0x9C, /* 0A */
0x2E, /* 0B */
0x21, /* 0C */
0x00, /* ? not written */
0x3F, 0x03, /* 0E-0F */
0x3F, 0x03, /* 10-11 */
0x1A, /* 12 */
0x2A, /* 13 */
0x1C, 0x3D, 0x14, /* 14-16 */
0x9C, 0x01, /* 17-18 */
0x00, /* 19 */
0xFE, /* 1A */
0x7E, /* 1B */
0x60, /* 1C */
0x05, /* 1D */
0x89, 0x03, /* 1E-1F */
0x72, /* 20 */
0x07, /* 21 */
0x72, /* 22 */
0x00, /* 23 */
0x00, /* 24 */
0x00, /* 25 */
0x08, /* 26 */
0x04, /* 27 */
0x00, /* 28 */
0x1A, /* 29 */
0x55, 0x01, /* 2A-2B */
0x26, /* 2C */
0x07, 0x7E, /* 2D-2E */
0x02, 0x54, /* 2F-30 */
0xB0, 0x00, /* 31-32 */
0x14, /* 33 */
0x49, /* 34 */
0x00, /* 35 written multiple times */
0x00, /* 36 not written */
0xA3, /* 37 */
0xC8, /* 38 */
0x22, /* 39 */
0x02, /* 3A */
0x22, /* 3B */
0x3F, 0x03, /* 3C-3D */
0x00, /* 3E written multiple times */
0x00, /* 3F not written */
}, MATROXFB_OUTPUT_MODE_PAL, 625, 50 };
static struct mavenregs ntscregs = { {
0x21, 0xF0, 0x7C, 0x1F, /* 00: chroma subcarrier */
0x00,
0x00, /* ? not written */
0x00, /* modified by code (F9 written...) */
0x00, /* ? not written */
0x7E, /* 08 */
0x43, /* 09 */
0x7E, /* 0A */
0x3D, /* 0B */
0x00, /* 0C */
0x00, /* ? not written */
0x41, 0x00, /* 0E-0F */
0x3C, 0x00, /* 10-11 */
0x17, /* 12 */
0x21, /* 13 */
0x1B, 0x1B, 0x24, /* 14-16 */
0x83, 0x01, /* 17-18 */
0x00, /* 19 */
0x0F, /* 1A */
0x0F, /* 1B */
0x60, /* 1C */
0x05, /* 1D */
0x89, 0x02, /* 1E-1F */
0x5F, /* 20 */
0x04, /* 21 */
0x5F, /* 22 */
0x01, /* 23 */
0x02, /* 24 */
0x00, /* 25 */
0x0A, /* 26 */
0x05, /* 27 */
0x00, /* 28 */
0x10, /* 29 */
0xFF, 0x03, /* 2A-2B */
0x24, /* 2C */
0x0F, 0x78, /* 2D-2E */
0x00, 0x00, /* 2F-30 */
0xB2, 0x04, /* 31-32 */
0x14, /* 33 */
0x02, /* 34 */
0x00, /* 35 written multiple times */
0x00, /* 36 not written */
0xA3, /* 37 */
0xC8, /* 38 */
0x15, /* 39 */
0x05, /* 3A */
0x3B, /* 3B */
0x3C, 0x00, /* 3C-3D */
0x00, /* 3E written multiple times */
0x00, /* never written */
}, MATROXFB_OUTPUT_MODE_NTSC, 525, 60 };
struct matrox_fb_info *minfo = md->primary_head;
if (minfo->outputs[1].mode == MATROXFB_OUTPUT_MODE_PAL)
*data = palregs;
else
*data = ntscregs;
/* Set deflicker */
data->regs[0x93] = maven_compute_deflicker(md);
/* set gamma */
{
const struct maven_gamma* g;
g = maven_compute_gamma(md);
data->regs[0x83] = g->reg83;
data->regs[0x84] = g->reg84;
data->regs[0x85] = g->reg85;
data->regs[0x86] = g->reg86;
data->regs[0x87] = g->reg87;
data->regs[0x88] = g->reg88;
data->regs[0x89] = g->reg89;
data->regs[0x8A] = g->reg8a;
data->regs[0x8B] = g->reg8b;
}
/* Set contrast / brightness */
{
int bl, wl;
maven_compute_bwlevel (md, &bl, &wl);
data->regs[0x0e] = bl >> 2;
data->regs[0x0f] = bl & 3;
data->regs[0x1e] = wl >> 2;
data->regs[0x1f] = wl & 3;
}
/* Set saturation */
{
data->regs[0x20] =
data->regs[0x22] = minfo->altout.tvo_params.saturation;
}
/* Set HUE */
data->regs[0x25] = minfo->altout.tvo_params.hue;
return;
}
#define LR(x) maven_set_reg(c, (x), m->regs[(x)])
#define LRP(x) maven_set_reg_pair(c, (x), m->regs[(x)] | (m->regs[(x)+1] << 8))
static void maven_init_TV(struct i2c_client* c, const struct mavenregs* m) {
int val;
maven_set_reg(c, 0x3E, 0x01);
maven_get_reg(c, 0x82); /* fetch oscillator state? */
maven_set_reg(c, 0x8C, 0x00);
maven_get_reg(c, 0x94); /* get 0x82 */
maven_set_reg(c, 0x94, 0xA2);
/* xmiscctrl */
maven_set_reg_pair(c, 0x8E, 0x1EFF);
maven_set_reg(c, 0xC6, 0x01);
/* removed code... */
maven_get_reg(c, 0x06);
maven_set_reg(c, 0x06, 0xF9); /* or read |= 0xF0 ? */
/* removed code here... */
/* real code begins here? */
/* chroma subcarrier */
LR(0x00); LR(0x01); LR(0x02); LR(0x03);
LR(0x04);
LR(0x2C);
LR(0x08);
LR(0x0A);
LR(0x09);
LR(0x29);
LRP(0x31);
LRP(0x17);
LR(0x0B);
LR(0x0C);
if (m->mode == MATROXFB_OUTPUT_MODE_PAL) {
maven_set_reg(c, 0x35, 0x10); /* ... */
} else {
maven_set_reg(c, 0x35, 0x0F); /* ... */
}
LRP(0x10);
LRP(0x0E);
LRP(0x1E);
LR(0x20); /* saturation #1 */
LR(0x22); /* saturation #2 */
LR(0x25); /* hue */
LR(0x34);
LR(0x33);
LR(0x19);
LR(0x12);
LR(0x3B);
LR(0x13);
LR(0x39);
LR(0x1D);
LR(0x3A);
LR(0x24);
LR(0x14);
LR(0x15);
LR(0x16);
LRP(0x2D);
LRP(0x2F);
LR(0x1A);
LR(0x1B);
LR(0x1C);
LR(0x23);
LR(0x26);
LR(0x28);
LR(0x27);
LR(0x21);
LRP(0x2A);
if (m->mode == MATROXFB_OUTPUT_MODE_PAL)
maven_set_reg(c, 0x35, 0x1D); /* ... */
else
maven_set_reg(c, 0x35, 0x1C);
LRP(0x3C);
LR(0x37);
LR(0x38);
maven_set_reg(c, 0xB3, 0x01);
maven_get_reg(c, 0xB0); /* read 0x80 */
maven_set_reg(c, 0xB0, 0x08); /* ugh... */
maven_get_reg(c, 0xB9); /* read 0x7C */
maven_set_reg(c, 0xB9, 0x78);
maven_get_reg(c, 0xBF); /* read 0x00 */
maven_set_reg(c, 0xBF, 0x02);
maven_get_reg(c, 0x94); /* read 0x82 */
maven_set_reg(c, 0x94, 0xB3);
LR(0x80); /* 04 1A 91 or 05 21 91 */
LR(0x81);
LR(0x82);
maven_set_reg(c, 0x8C, 0x20);
maven_get_reg(c, 0x8D);
maven_set_reg(c, 0x8D, 0x10);
LR(0x90); /* 4D 50 52 or 4E 05 45 */
LR(0x91);
LR(0x92);
LRP(0x9A); /* 0049 or 004F */
LRP(0x9C); /* 0004 or 0004 */
LRP(0x9E); /* 0458 or 045E */
LRP(0xA0); /* 05DA or 051B */
LRP(0xA2); /* 00CC or 00CF */
LRP(0xA4); /* 007D or 007F */
LRP(0xA6); /* 007C or 007E */
LRP(0xA8); /* 03CB or 03CE */
LRP(0x98); /* 0000 or 0000 */
LRP(0xAE); /* 0044 or 003A */
LRP(0x96); /* 05DA or 051B */
LRP(0xAA); /* 04BC or 046A */
LRP(0xAC); /* 004D or 004E */
LR(0xBE);
LR(0xC2);
maven_get_reg(c, 0x8D);
maven_set_reg(c, 0x8D, 0x04);
LR(0x20); /* saturation #1 */
LR(0x22); /* saturation #2 */
LR(0x93); /* whoops */
LR(0x20); /* oh, saturation #1 again */
LR(0x22); /* oh, saturation #2 again */
LR(0x25); /* hue */
LRP(0x0E);
LRP(0x1E);
LRP(0x0E); /* problems with memory? */
LRP(0x1E); /* yes, matrox must have problems in memory area... */
/* load gamma correction stuff */
LR(0x83);
LR(0x84);
LR(0x85);
LR(0x86);
LR(0x87);
LR(0x88);
LR(0x89);
LR(0x8A);
LR(0x8B);
val = maven_get_reg(c, 0x8D);
val &= 0x14; /* 0x10 or anything ored with it */
maven_set_reg(c, 0x8D, val);
LR(0x33);
LR(0x19);
LR(0x12);
LR(0x3B);
LR(0x13);
LR(0x39);
LR(0x1D);
LR(0x3A);
LR(0x24);
LR(0x14);
LR(0x15);
LR(0x16);
LRP(0x2D);
LRP(0x2F);
LR(0x1A);
LR(0x1B);
LR(0x1C);
LR(0x23);
LR(0x26);
LR(0x28);
LR(0x27);
LR(0x21);
LRP(0x2A);
if (m->mode == MATROXFB_OUTPUT_MODE_PAL)
maven_set_reg(c, 0x35, 0x1D);
else
maven_set_reg(c, 0x35, 0x1C);
LRP(0x3C);
LR(0x37);
LR(0x38);
maven_get_reg(c, 0xB0);
LR(0xB0); /* output mode */
LR(0x90);
LR(0xBE);
LR(0xC2);
LRP(0x9A);
LRP(0xA2);
LRP(0x9E);
LRP(0xA6);
LRP(0xAA);
LRP(0xAC);
maven_set_reg(c, 0x3E, 0x00);
maven_set_reg(c, 0x95, 0x20);
}
static int maven_find_exact_clocks(unsigned int ht, unsigned int vt,
struct mavenregs* m) {
unsigned int x;
unsigned int err = ~0;
/* 1:1 */
m->regs[0x80] = 0x0F;
m->regs[0x81] = 0x07;
m->regs[0x82] = 0x81;
for (x = 0; x < 8; x++) {
unsigned int c;
unsigned int uninitialized_var(a), uninitialized_var(b),
uninitialized_var(h2);
unsigned int h = ht + 2 + x;
if (!matroxfb_mavenclock((m->mode == MATROXFB_OUTPUT_MODE_PAL) ? &maven_PAL : &maven_NTSC, h, vt, &a, &b, &c, &h2)) {
unsigned int diff = h - h2;
if (diff < err) {
err = diff;
m->regs[0x80] = a - 1;
m->regs[0x81] = b - 1;
m->regs[0x82] = c | 0x80;
m->hcorr = h2 - 2;
m->htotal = h - 2;
}
}
}
return err != ~0U;
}
static inline int maven_compute_timming(struct maven_data* md,
struct my_timming* mt,
struct mavenregs* m) {
unsigned int tmpi;
unsigned int a, bv, c;
struct matrox_fb_info *minfo = md->primary_head;
m->mode = minfo->outputs[1].mode;
if (m->mode != MATROXFB_OUTPUT_MODE_MONITOR) {
unsigned int lmargin;
unsigned int umargin;
unsigned int vslen;
unsigned int hcrt;
unsigned int slen;
maven_init_TVdata(md, m);
if (maven_find_exact_clocks(mt->HTotal, mt->VTotal, m) == 0)
return -EINVAL;
lmargin = mt->HTotal - mt->HSyncEnd;
slen = mt->HSyncEnd - mt->HSyncStart;
hcrt = mt->HTotal - slen - mt->delay;
umargin = mt->VTotal - mt->VSyncEnd;
vslen = mt->VSyncEnd - mt->VSyncStart;
if (m->hcorr < mt->HTotal)
hcrt += m->hcorr;
if (hcrt > mt->HTotal)
hcrt -= mt->HTotal;
if (hcrt + 2 > mt->HTotal)
hcrt = 0; /* or issue warning? */
/* last (first? middle?) line in picture can have different length */
/* hlen - 2 */
m->regs[0x96] = m->hcorr;
m->regs[0x97] = m->hcorr >> 8;
/* ... */
m->regs[0x98] = 0x00; m->regs[0x99] = 0x00;
/* hblanking end */
m->regs[0x9A] = lmargin; /* 100% */
m->regs[0x9B] = lmargin >> 8; /* 100% */
/* who knows */
m->regs[0x9C] = 0x04;
m->regs[0x9D] = 0x00;
/* htotal - 2 */
m->regs[0xA0] = m->htotal;
m->regs[0xA1] = m->htotal >> 8;
/* vblanking end */
m->regs[0xA2] = mt->VTotal - mt->VSyncStart - 1; /* stop vblanking */
m->regs[0xA3] = (mt->VTotal - mt->VSyncStart - 1) >> 8;
/* something end... [A6]+1..[A8] */
if (md->version == MGATVO_B) {
m->regs[0xA4] = 0x04;
m->regs[0xA5] = 0x00;
} else {
m->regs[0xA4] = 0x01;
m->regs[0xA5] = 0x00;
}
/* something start... 0..[A4]-1 */
m->regs[0xA6] = 0x00;
m->regs[0xA7] = 0x00;
/* vertical line count - 1 */
m->regs[0xA8] = mt->VTotal - 1;
m->regs[0xA9] = (mt->VTotal - 1) >> 8;
/* horizontal vidrst pos */
m->regs[0xAA] = hcrt; /* 0 <= hcrt <= htotal - 2 */
m->regs[0xAB] = hcrt >> 8;
/* vertical vidrst pos */
m->regs[0xAC] = mt->VTotal - 2;
m->regs[0xAD] = (mt->VTotal - 2) >> 8;
/* moves picture up/down and so on... */
m->regs[0xAE] = 0x01; /* Fix this... 0..VTotal */
m->regs[0xAF] = 0x00;
{
int hdec;
int hlen;
unsigned int ibmin = 4 + lmargin + mt->HDisplay;
unsigned int ib;
int i;
/* Verify! */
/* Where 94208 came from? */
if (mt->HTotal)
hdec = 94208 / (mt->HTotal);
else
hdec = 0x81;
if (hdec > 0x81)
hdec = 0x81;
if (hdec < 0x41)
hdec = 0x41;
hdec--;
hlen = 98304 - 128 - ((lmargin + mt->HDisplay - 8) * hdec);
if (hlen < 0)
hlen = 0;
hlen = hlen >> 8;
if (hlen > 0xFF)
hlen = 0xFF;
/* Now we have to compute input buffer length.
If you want any picture, it must be between
4 + lmargin + xres
and
94208 / hdec
If you want perfect picture even on the top
of screen, it must be also
0x3C0000 * i / hdec + Q - R / hdec
where
R Qmin Qmax
0x07000 0x5AE 0x5BF
0x08000 0x5CF 0x5FF
0x0C000 0x653 0x67F
0x10000 0x6F8 0x6FF
*/
i = 1;
do {
ib = ((0x3C0000 * i - 0x8000)/ hdec + 0x05E7) >> 8;
i++;
} while (ib < ibmin);
if (ib >= m->htotal + 2) {
ib = ibmin;
}
m->regs[0x90] = hdec; /* < 0x40 || > 0x80 is bad... 0x80 is questionable */
m->regs[0xC2] = hlen;
/* 'valid' input line length */
m->regs[0x9E] = ib;
m->regs[0x9F] = ib >> 8;
}
{
int vdec;
int vlen;
#define MATROX_USE64BIT_DIVIDE
if (mt->VTotal) {
#ifdef MATROX_USE64BIT_DIVIDE
u64 f1;
u32 a;
u32 b;
a = m->vlines * (m->htotal + 2);
b = (mt->VTotal - 1) * (m->htotal + 2) + m->hcorr + 2;
f1 = ((u64)a) << 15; /* *32768 */
do_div(f1, b);
vdec = f1;
#else
vdec = m->vlines * 32768 / mt->VTotal;
#endif
} else
vdec = 0x8000;
if (vdec > 0x8000)
vdec = 0x8000;
vlen = (vslen + umargin + mt->VDisplay) * vdec;
vlen = (vlen >> 16) - 146; /* FIXME: 146?! */
if (vlen < 0)
vlen = 0;
if (vlen > 0xFF)
vlen = 0xFF;
vdec--;
m->regs[0x91] = vdec;
m->regs[0x92] = vdec >> 8;
m->regs[0xBE] = vlen;
}
m->regs[0xB0] = 0x08; /* output: SVideo/Composite */
return 0;
}
DAC1064_calcclock(mt->pixclock, 450000, &a, &bv, &c);
m->regs[0x80] = a;
m->regs[0x81] = bv;
m->regs[0x82] = c | 0x80;
m->regs[0xB3] = 0x01;
m->regs[0x94] = 0xB2;
/* htotal... */
m->regs[0x96] = mt->HTotal;
m->regs[0x97] = mt->HTotal >> 8;
/* ?? */
m->regs[0x98] = 0x00;
m->regs[0x99] = 0x00;
/* hsync len */
tmpi = mt->HSyncEnd - mt->HSyncStart;
m->regs[0x9A] = tmpi;
m->regs[0x9B] = tmpi >> 8;
/* hblank end */
tmpi = mt->HTotal - mt->HSyncStart;
m->regs[0x9C] = tmpi;
m->regs[0x9D] = tmpi >> 8;
/* hblank start */
tmpi += mt->HDisplay;
m->regs[0x9E] = tmpi;
m->regs[0x9F] = tmpi >> 8;
/* htotal + 1 */
tmpi = mt->HTotal + 1;
m->regs[0xA0] = tmpi;
m->regs[0xA1] = tmpi >> 8;
/* vsync?! */
tmpi = mt->VSyncEnd - mt->VSyncStart - 1;
m->regs[0xA2] = tmpi;
m->regs[0xA3] = tmpi >> 8;
/* ignored? */
tmpi = mt->VTotal - mt->VSyncStart;
m->regs[0xA4] = tmpi;
m->regs[0xA5] = tmpi >> 8;
/* ignored? */
tmpi = mt->VTotal - 1;
m->regs[0xA6] = tmpi;
m->regs[0xA7] = tmpi >> 8;
/* vtotal - 1 */
m->regs[0xA8] = tmpi;
m->regs[0xA9] = tmpi >> 8;
/* hor vidrst */
tmpi = mt->HTotal - mt->delay;
m->regs[0xAA] = tmpi;
m->regs[0xAB] = tmpi >> 8;
/* vert vidrst */
tmpi = mt->VTotal - 2;
m->regs[0xAC] = tmpi;
m->regs[0xAD] = tmpi >> 8;
/* ignored? */
m->regs[0xAE] = 0x00;
m->regs[0xAF] = 0x00;
m->regs[0xB0] = 0x03; /* output: monitor */
m->regs[0xB1] = 0xA0; /* ??? */
m->regs[0x8C] = 0x20; /* must be set... */
m->regs[0x8D] = 0x04; /* defaults to 0x10: test signal */
m->regs[0xB9] = 0x1A; /* defaults to 0x2C: too bright */
m->regs[0xBF] = 0x22; /* makes picture stable */
return 0;
}
static int maven_program_timming(struct maven_data* md,
const struct mavenregs* m) {
struct i2c_client *c = md->client;
if (m->mode == MATROXFB_OUTPUT_MODE_MONITOR) {
LR(0x80);
LR(0x81);
LR(0x82);
LR(0xB3);
LR(0x94);
LRP(0x96);
LRP(0x98);
LRP(0x9A);
LRP(0x9C);
LRP(0x9E);
LRP(0xA0);
LRP(0xA2);
LRP(0xA4);
LRP(0xA6);
LRP(0xA8);
LRP(0xAA);
LRP(0xAC);
LRP(0xAE);
LR(0xB0); /* output: monitor */
LR(0xB1); /* ??? */
LR(0x8C); /* must be set... */
LR(0x8D); /* defaults to 0x10: test signal */
LR(0xB9); /* defaults to 0x2C: too bright */
LR(0xBF); /* makes picture stable */
} else {
maven_init_TV(c, m);
}
return 0;
}
static inline int maven_resync(struct maven_data* md) {
struct i2c_client *c = md->client;
maven_set_reg(c, 0x95, 0x20); /* start whole thing */
return 0;
}
static int maven_get_queryctrl (struct maven_data* md,
struct v4l2_queryctrl *p) {
int i;
i = get_ctrl_id(p->id);
if (i >= 0) {
*p = maven_controls[i].desc;
return 0;
}
if (i == -ENOENT) {
static const struct v4l2_queryctrl disctrl =
{ .flags = V4L2_CTRL_FLAG_DISABLED };
i = p->id;
*p = disctrl;
p->id = i;
sprintf(p->name, "Ctrl #%08X", i);
return 0;
}
return -EINVAL;
}
static int maven_set_control (struct maven_data* md,
struct v4l2_control *p) {
int i;
i = get_ctrl_id(p->id);
if (i < 0) return -EINVAL;
/*
* Check if changed.
*/
if (p->value == *get_ctrl_ptr(md, i)) return 0;
/*
* Check limits.
*/
if (p->value > maven_controls[i].desc.maximum) return -EINVAL;
if (p->value < maven_controls[i].desc.minimum) return -EINVAL;
/*
* Store new value.
*/
*get_ctrl_ptr(md, i) = p->value;
switch (p->id) {
case V4L2_CID_BRIGHTNESS:
case V4L2_CID_CONTRAST:
{
int blacklevel, whitelevel;
maven_compute_bwlevel(md, &blacklevel, &whitelevel);
blacklevel = (blacklevel >> 2) | ((blacklevel & 3) << 8);
whitelevel = (whitelevel >> 2) | ((whitelevel & 3) << 8);
maven_set_reg_pair(md->client, 0x0e, blacklevel);
maven_set_reg_pair(md->client, 0x1e, whitelevel);
}
break;
case V4L2_CID_SATURATION:
{
maven_set_reg(md->client, 0x20, p->value);
maven_set_reg(md->client, 0x22, p->value);
}
break;
case V4L2_CID_HUE:
{
maven_set_reg(md->client, 0x25, p->value);
}
break;
case V4L2_CID_GAMMA:
{
const struct maven_gamma* g;
g = maven_compute_gamma(md);
maven_set_reg(md->client, 0x83, g->reg83);
maven_set_reg(md->client, 0x84, g->reg84);
maven_set_reg(md->client, 0x85, g->reg85);
maven_set_reg(md->client, 0x86, g->reg86);
maven_set_reg(md->client, 0x87, g->reg87);
maven_set_reg(md->client, 0x88, g->reg88);
maven_set_reg(md->client, 0x89, g->reg89);
maven_set_reg(md->client, 0x8a, g->reg8a);
maven_set_reg(md->client, 0x8b, g->reg8b);
}
break;
case MATROXFB_CID_TESTOUT:
{
unsigned char val
= maven_get_reg(md->client, 0x8d);
if (p->value) val |= 0x10;
else val &= ~0x10;
maven_set_reg(md->client, 0x8d, val);
}
break;
case MATROXFB_CID_DEFLICKER:
{
maven_set_reg(md->client, 0x93, maven_compute_deflicker(md));
}
break;
}
return 0;
}
static int maven_get_control (struct maven_data* md,
struct v4l2_control *p) {
int i;
i = get_ctrl_id(p->id);
if (i < 0) return -EINVAL;
p->value = *get_ctrl_ptr(md, i);
return 0;
}
/******************************************************/
static int maven_out_compute(void* md, struct my_timming* mt) {
#define mdinfo ((struct maven_data*)md)
#define minfo (mdinfo->primary_head)
return maven_compute_timming(md, mt, &minfo->hw.maven);
#undef minfo
#undef mdinfo
}
static int maven_out_program(void* md) {
#define mdinfo ((struct maven_data*)md)
#define minfo (mdinfo->primary_head)
return maven_program_timming(md, &minfo->hw.maven);
#undef minfo
#undef mdinfo
}
static int maven_out_start(void* md) {
return maven_resync(md);
}
static int maven_out_verify_mode(void* md, u_int32_t arg) {
switch (arg) {
case MATROXFB_OUTPUT_MODE_PAL:
case MATROXFB_OUTPUT_MODE_NTSC:
case MATROXFB_OUTPUT_MODE_MONITOR:
return 0;
}
return -EINVAL;
}
static int maven_out_get_queryctrl(void* md, struct v4l2_queryctrl* p) {
return maven_get_queryctrl(md, p);
}
static int maven_out_get_ctrl(void* md, struct v4l2_control* p) {
return maven_get_control(md, p);
}
static int maven_out_set_ctrl(void* md, struct v4l2_control* p) {
return maven_set_control(md, p);
}
static struct matrox_altout maven_altout = {
.name = "Secondary output",
.compute = maven_out_compute,
.program = maven_out_program,
.start = maven_out_start,
.verifymode = maven_out_verify_mode,
.getqueryctrl = maven_out_get_queryctrl,
.getctrl = maven_out_get_ctrl,
.setctrl = maven_out_set_ctrl,
};
static int maven_init_client(struct i2c_client* clnt) {
struct maven_data* md = i2c_get_clientdata(clnt);
struct matrox_fb_info *minfo = container_of(clnt->adapter,
struct i2c_bit_adapter,
adapter)->minfo;
md->primary_head = minfo;
md->client = clnt;
down_write(&minfo->altout.lock);
minfo->outputs[1].output = &maven_altout;
minfo->outputs[1].src = minfo->outputs[1].default_src;
minfo->outputs[1].data = md;
minfo->outputs[1].mode = MATROXFB_OUTPUT_MODE_MONITOR;
up_write(&minfo->altout.lock);
if (maven_get_reg(clnt, 0xB2) < 0x14) {
md->version = MGATVO_B;
/* Tweak some things for this old chip */
} else {
md->version = MGATVO_C;
}
/*
* Set all parameters to its initial values.
*/
{
unsigned int i;
for (i = 0; i < MAVCTRLS; ++i) {
*get_ctrl_ptr(md, i) = maven_controls[i].desc.default_value;
}
}
return 0;
}
static int maven_shutdown_client(struct i2c_client* clnt) {
struct maven_data* md = i2c_get_clientdata(clnt);
if (md->primary_head) {
struct matrox_fb_info *minfo = md->primary_head;
down_write(&minfo->altout.lock);
minfo->outputs[1].src = MATROXFB_SRC_NONE;
minfo->outputs[1].output = NULL;
minfo->outputs[1].data = NULL;
minfo->outputs[1].mode = MATROXFB_OUTPUT_MODE_MONITOR;
up_write(&minfo->altout.lock);
md->primary_head = NULL;
}
return 0;
}
static int maven_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct i2c_adapter *adapter = client->adapter;
int err = -ENODEV;
struct maven_data* data;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WRITE_WORD_DATA |
I2C_FUNC_SMBUS_BYTE_DATA |
I2C_FUNC_NOSTART |
I2C_FUNC_PROTOCOL_MANGLING))
goto ERROR0;
if (!(data = kzalloc(sizeof(*data), GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR0;
}
i2c_set_clientdata(client, data);
err = maven_init_client(client);
if (err)
goto ERROR4;
return 0;
ERROR4:;
kfree(data);
ERROR0:;
return err;
}
static int maven_remove(struct i2c_client *client)
{
maven_shutdown_client(client);
kfree(i2c_get_clientdata(client));
return 0;
}
static const struct i2c_device_id maven_id[] = {
{ "maven", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, maven_id);
static struct i2c_driver maven_driver={
.driver = {
.name = "maven",
},
.probe = maven_probe,
.remove = maven_remove,
.id_table = maven_id,
};
static int __init matroxfb_maven_init(void)
{
return i2c_add_driver(&maven_driver);
}
static void __exit matroxfb_maven_exit(void)
{
i2c_del_driver(&maven_driver);
}
MODULE_AUTHOR("(c) 1999-2002 Petr Vandrovec <vandrove@vc.cvut.cz>");
MODULE_DESCRIPTION("Matrox G200/G400 Matrox MGA-TVO driver");
MODULE_LICENSE("GPL");
module_init(matroxfb_maven_init);
module_exit(matroxfb_maven_exit);
/* we do not have __setup() yet */
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