![Laurent Riffard](/assets/img/avatar_default.png)
Given that implementing i2c_driver.command is optional, there is no point in an empty implementation thereof. Signed-off-by: Laurent Riffard <laurent.riffard@free.fr> Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Michael Geng <linux@MichaelGeng.de> Cc: Petr Vandrovec <vandrove@vc.cvut.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
1323 lines
30 KiB
C
1323 lines
30 KiB
C
/*
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*
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* Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200, G400 and G450.
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*
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* (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
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*
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* Portions Copyright (c) 2001 Matrox Graphics Inc.
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*
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* Version: 1.65 2002/08/14
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*
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* See matroxfb_base.c for contributors.
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*
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*/
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#include "matroxfb_maven.h"
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#include "matroxfb_misc.h"
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#include "matroxfb_DAC1064.h"
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#include <linux/i2c.h>
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#include <linux/matroxfb.h>
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#include <asm/div64.h>
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#include <asm/uaccess.h>
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#define MAVEN_I2CID (0x1B)
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#define MGATVO_B 1
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#define MGATVO_C 2
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static const struct maven_gamma {
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unsigned char reg83;
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unsigned char reg84;
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unsigned char reg85;
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unsigned char reg86;
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unsigned char reg87;
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unsigned char reg88;
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unsigned char reg89;
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unsigned char reg8a;
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unsigned char reg8b;
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} maven_gamma[] = {
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{ 131, 57, 223, 15, 117, 212, 251, 91, 156},
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{ 133, 61, 128, 63, 180, 147, 195, 100, 180},
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{ 131, 19, 63, 31, 50, 66, 171, 64, 176},
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{ 0, 0, 0, 31, 16, 16, 16, 100, 200},
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{ 8, 23, 47, 73, 147, 244, 220, 80, 195},
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{ 22, 43, 64, 80, 147, 115, 58, 85, 168},
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{ 34, 60, 80, 214, 147, 212, 188, 85, 167},
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{ 45, 77, 96, 216, 147, 99, 91, 85, 159},
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{ 56, 76, 112, 107, 147, 212, 148, 64, 144},
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{ 65, 91, 128, 137, 147, 196, 17, 69, 148},
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{ 72, 104, 136, 138, 147, 180, 245, 73, 147},
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{ 87, 116, 143, 126, 16, 83, 229, 77, 144},
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{ 95, 119, 152, 254, 244, 83, 221, 77, 151},
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{ 100, 129, 159, 156, 244, 148, 197, 77, 160},
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{ 105, 141, 167, 247, 244, 132, 181, 84, 166},
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{ 105, 147, 168, 247, 244, 245, 181, 90, 170},
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{ 120, 153, 175, 248, 212, 229, 165, 90, 180},
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{ 119, 156, 176, 248, 244, 229, 84, 74, 160},
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{ 119, 158, 183, 248, 244, 229, 149, 78, 165}
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};
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/* Definition of the various controls */
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struct mctl {
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struct v4l2_queryctrl desc;
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size_t control;
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};
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#define BLMIN 0x0FF
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#define WLMAX 0x3FF
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static const struct mctl maven_controls[] =
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{ { { V4L2_CID_BRIGHTNESS, V4L2_CTRL_TYPE_INTEGER,
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"brightness",
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0, WLMAX - BLMIN, 1, 379 - BLMIN,
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0,
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}, offsetof(struct matrox_fb_info, altout.tvo_params.brightness) },
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{ { V4L2_CID_CONTRAST, V4L2_CTRL_TYPE_INTEGER,
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"contrast",
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0, 1023, 1, 127,
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0,
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}, offsetof(struct matrox_fb_info, altout.tvo_params.contrast) },
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{ { V4L2_CID_SATURATION, V4L2_CTRL_TYPE_INTEGER,
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"saturation",
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0, 255, 1, 155,
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0,
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}, offsetof(struct matrox_fb_info, altout.tvo_params.saturation) },
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{ { V4L2_CID_HUE, V4L2_CTRL_TYPE_INTEGER,
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"hue",
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0, 255, 1, 0,
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0,
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}, offsetof(struct matrox_fb_info, altout.tvo_params.hue) },
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{ { V4L2_CID_GAMMA, V4L2_CTRL_TYPE_INTEGER,
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"gamma",
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0, sizeof(maven_gamma)/sizeof(maven_gamma[0])-1, 1, 3,
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0,
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}, offsetof(struct matrox_fb_info, altout.tvo_params.gamma) },
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{ { MATROXFB_CID_TESTOUT, V4L2_CTRL_TYPE_BOOLEAN,
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"test output",
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0, 1, 1, 0,
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0,
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}, offsetof(struct matrox_fb_info, altout.tvo_params.testout) },
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{ { MATROXFB_CID_DEFLICKER, V4L2_CTRL_TYPE_INTEGER,
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"deflicker mode",
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0, 2, 1, 0,
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0,
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}, offsetof(struct matrox_fb_info, altout.tvo_params.deflicker) },
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};
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#define MAVCTRLS (sizeof(maven_controls)/sizeof(maven_controls[0]))
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/* Return: positive number: id found
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-EINVAL: id not found, return failure
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-ENOENT: id not found, create fake disabled control */
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static int get_ctrl_id(__u32 v4l2_id) {
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int i;
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for (i = 0; i < MAVCTRLS; i++) {
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if (v4l2_id < maven_controls[i].desc.id) {
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if (maven_controls[i].desc.id == 0x08000000) {
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return -EINVAL;
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}
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return -ENOENT;
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}
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if (v4l2_id == maven_controls[i].desc.id) {
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return i;
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}
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}
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return -EINVAL;
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}
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struct maven_data {
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struct matrox_fb_info* primary_head;
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struct i2c_client* client;
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int version;
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};
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static int* get_ctrl_ptr(struct maven_data* md, int idx) {
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return (int*)((char*)(md->primary_head) + maven_controls[idx].control);
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}
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static int maven_get_reg(struct i2c_client* c, char reg) {
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char dst;
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struct i2c_msg msgs[] = {{ c->addr, I2C_M_REV_DIR_ADDR, sizeof(reg), ® },
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{ c->addr, I2C_M_RD | I2C_M_NOSTART, sizeof(dst), &dst }};
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s32 err;
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err = i2c_transfer(c->adapter, msgs, 2);
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if (err < 0)
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printk(KERN_INFO "ReadReg(%d) failed\n", reg);
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return dst & 0xFF;
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}
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static int maven_set_reg(struct i2c_client* c, int reg, int val) {
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s32 err;
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err = i2c_smbus_write_byte_data(c, reg, val);
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if (err)
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printk(KERN_INFO "WriteReg(%d) failed\n", reg);
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return err;
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}
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static int maven_set_reg_pair(struct i2c_client* c, int reg, int val) {
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s32 err;
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err = i2c_smbus_write_word_data(c, reg, val);
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if (err)
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printk(KERN_INFO "WriteRegPair(%d) failed\n", reg);
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return err;
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}
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static const struct matrox_pll_features maven_pll = {
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50000,
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27000,
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4, 127,
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2, 31,
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3
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};
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struct matrox_pll_features2 {
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unsigned int vco_freq_min;
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unsigned int vco_freq_max;
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unsigned int feed_div_min;
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unsigned int feed_div_max;
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unsigned int in_div_min;
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unsigned int in_div_max;
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unsigned int post_shift_max;
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};
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struct matrox_pll_ctl {
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unsigned int ref_freq;
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unsigned int den;
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};
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static const struct matrox_pll_features2 maven1000_pll = {
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50000000,
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300000000,
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5, 128,
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3, 32,
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3
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};
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static const struct matrox_pll_ctl maven_PAL = {
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540000,
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50
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};
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static const struct matrox_pll_ctl maven_NTSC = {
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450450, /* 27027000/60 == 27000000/59.94005994 */
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60
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};
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static int matroxfb_PLL_mavenclock(const struct matrox_pll_features2* pll,
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const struct matrox_pll_ctl* ctl,
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unsigned int htotal, unsigned int vtotal,
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unsigned int* in, unsigned int* feed, unsigned int* post,
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unsigned int* h2) {
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unsigned int besth2 = 0;
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unsigned int fxtal = ctl->ref_freq;
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unsigned int fmin = pll->vco_freq_min / ctl->den;
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unsigned int fwant;
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unsigned int p;
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unsigned int scrlen;
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unsigned int fmax;
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DBG(__FUNCTION__)
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scrlen = htotal * (vtotal - 1);
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fwant = htotal * vtotal;
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fmax = pll->vco_freq_max / ctl->den;
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dprintk(KERN_DEBUG "want: %u, xtal: %u, h: %u, v: %u, fmax: %u\n",
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fwant, fxtal, htotal, vtotal, fmax);
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for (p = 1; p <= pll->post_shift_max; p++) {
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if (fwant * 2 > fmax)
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break;
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fwant *= 2;
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}
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if (fwant > fmax)
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return 0;
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for (; p-- > 0; fwant >>= 1) {
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unsigned int m;
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if (fwant < fmin) break;
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for (m = pll->in_div_min; m <= pll->in_div_max; m++) {
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unsigned int n;
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unsigned int dvd;
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unsigned int ln;
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n = (fwant * m) / fxtal;
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if (n < pll->feed_div_min)
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continue;
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if (n > pll->feed_div_max)
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break;
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ln = fxtal * n;
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dvd = m << p;
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if (ln % dvd)
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continue;
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ln = ln / dvd;
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if (ln < scrlen + 2)
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continue;
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ln = ln - scrlen;
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if (ln > htotal)
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continue;
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dprintk(KERN_DEBUG "Match: %u / %u / %u / %u\n", n, m, p, ln);
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if (ln > besth2) {
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dprintk(KERN_DEBUG "Better...\n");
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*h2 = besth2 = ln;
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*post = p;
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*in = m;
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*feed = n;
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}
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}
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}
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if (besth2 < 2)
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return 0;
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dprintk(KERN_ERR "clk: %02X %02X %02X %d %d\n", *in, *feed, *post, fxtal, fwant);
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return fxtal * (*feed) / (*in) * ctl->den;
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}
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static unsigned int matroxfb_mavenclock(const struct matrox_pll_ctl* ctl,
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unsigned int htotal, unsigned int vtotal,
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unsigned int* in, unsigned int* feed, unsigned int* post,
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unsigned int* htotal2) {
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unsigned int fvco;
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unsigned int p;
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fvco = matroxfb_PLL_mavenclock(&maven1000_pll, ctl, htotal, vtotal, in, feed, &p, htotal2);
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if (!fvco)
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return -EINVAL;
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p = (1 << p) - 1;
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if (fvco <= 100000000)
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;
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else if (fvco <= 140000000)
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p |= 0x08;
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else if (fvco <= 180000000)
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p |= 0x10;
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else
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p |= 0x18;
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*post = p;
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return 0;
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}
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static void DAC1064_calcclock(unsigned int freq, unsigned int fmax,
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unsigned int* in, unsigned int* feed, unsigned int* post) {
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unsigned int fvco;
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unsigned int p;
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fvco = matroxfb_PLL_calcclock(&maven_pll, freq, fmax, in, feed, &p);
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p = (1 << p) - 1;
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if (fvco <= 100000)
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;
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else if (fvco <= 140000)
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p |= 0x08;
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else if (fvco <= 180000)
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p |= 0x10;
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else
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p |= 0x18;
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*post = p;
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return;
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}
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static unsigned char maven_compute_deflicker (const struct maven_data* md) {
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unsigned char df;
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df = (md->version == MGATVO_B?0x40:0x00);
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switch (md->primary_head->altout.tvo_params.deflicker) {
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case 0:
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/* df |= 0x00; */
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break;
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case 1:
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df |= 0xB1;
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break;
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case 2:
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df |= 0xA2;
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break;
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}
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return df;
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}
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static void maven_compute_bwlevel (const struct maven_data* md,
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int *bl, int *wl) {
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const int b = md->primary_head->altout.tvo_params.brightness + BLMIN;
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const int c = md->primary_head->altout.tvo_params.contrast;
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*bl = max(b - c, BLMIN);
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*wl = min(b + c, WLMAX);
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}
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static const struct maven_gamma* maven_compute_gamma (const struct maven_data* md) {
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return maven_gamma + md->primary_head->altout.tvo_params.gamma;
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}
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static void maven_init_TVdata(const struct maven_data* md, struct mavenregs* data) {
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static struct mavenregs palregs = { {
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0x2A, 0x09, 0x8A, 0xCB, /* 00: chroma subcarrier */
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0x00,
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0x00, /* ? not written */
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0x00, /* modified by code (F9 written...) */
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0x00, /* ? not written */
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0x7E, /* 08 */
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0x44, /* 09 */
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0x9C, /* 0A */
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0x2E, /* 0B */
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0x21, /* 0C */
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0x00, /* ? not written */
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0x3F, 0x03, /* 0E-0F */
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0x3F, 0x03, /* 10-11 */
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0x1A, /* 12 */
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0x2A, /* 13 */
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0x1C, 0x3D, 0x14, /* 14-16 */
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0x9C, 0x01, /* 17-18 */
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0x00, /* 19 */
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0xFE, /* 1A */
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0x7E, /* 1B */
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0x60, /* 1C */
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0x05, /* 1D */
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0x89, 0x03, /* 1E-1F */
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0x72, /* 20 */
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0x07, /* 21 */
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0x72, /* 22 */
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0x00, /* 23 */
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0x00, /* 24 */
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0x00, /* 25 */
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0x08, /* 26 */
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0x04, /* 27 */
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0x00, /* 28 */
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0x1A, /* 29 */
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0x55, 0x01, /* 2A-2B */
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0x26, /* 2C */
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0x07, 0x7E, /* 2D-2E */
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0x02, 0x54, /* 2F-30 */
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0xB0, 0x00, /* 31-32 */
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0x14, /* 33 */
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0x49, /* 34 */
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0x00, /* 35 written multiple times */
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0x00, /* 36 not written */
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0xA3, /* 37 */
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0xC8, /* 38 */
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0x22, /* 39 */
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0x02, /* 3A */
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0x22, /* 3B */
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0x3F, 0x03, /* 3C-3D */
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0x00, /* 3E written multiple times */
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0x00, /* 3F not written */
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}, MATROXFB_OUTPUT_MODE_PAL, 625, 50 };
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static struct mavenregs ntscregs = { {
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0x21, 0xF0, 0x7C, 0x1F, /* 00: chroma subcarrier */
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0x00,
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0x00, /* ? not written */
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0x00, /* modified by code (F9 written...) */
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0x00, /* ? not written */
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0x7E, /* 08 */
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0x43, /* 09 */
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0x7E, /* 0A */
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0x3D, /* 0B */
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0x00, /* 0C */
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0x00, /* ? not written */
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0x41, 0x00, /* 0E-0F */
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0x3C, 0x00, /* 10-11 */
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0x17, /* 12 */
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0x21, /* 13 */
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0x1B, 0x1B, 0x24, /* 14-16 */
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0x83, 0x01, /* 17-18 */
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0x00, /* 19 */
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0x0F, /* 1A */
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0x0F, /* 1B */
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0x60, /* 1C */
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0x05, /* 1D */
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0x89, 0x02, /* 1E-1F */
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0x5F, /* 20 */
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0x04, /* 21 */
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0x5F, /* 22 */
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0x01, /* 23 */
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0x02, /* 24 */
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0x00, /* 25 */
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0x0A, /* 26 */
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0x05, /* 27 */
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0x00, /* 28 */
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0x10, /* 29 */
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0xFF, 0x03, /* 2A-2B */
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0x24, /* 2C */
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0x0F, 0x78, /* 2D-2E */
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0x00, 0x00, /* 2F-30 */
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0xB2, 0x04, /* 31-32 */
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0x14, /* 33 */
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0x02, /* 34 */
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0x00, /* 35 written multiple times */
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0x00, /* 36 not written */
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0xA3, /* 37 */
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0xC8, /* 38 */
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0x15, /* 39 */
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0x05, /* 3A */
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0x3B, /* 3B */
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0x3C, 0x00, /* 3C-3D */
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0x00, /* 3E written multiple times */
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0x00, /* never written */
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}, MATROXFB_OUTPUT_MODE_NTSC, 525, 60 };
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MINFO_FROM(md->primary_head);
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if (ACCESS_FBINFO(outputs[1]).mode == MATROXFB_OUTPUT_MODE_PAL)
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*data = palregs;
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else
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*data = ntscregs;
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/* Set deflicker */
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data->regs[0x93] = maven_compute_deflicker(md);
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/* set gamma */
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{
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const struct maven_gamma* g;
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g = maven_compute_gamma(md);
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data->regs[0x83] = g->reg83;
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data->regs[0x84] = g->reg84;
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data->regs[0x85] = g->reg85;
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|
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] = ACCESS_FBINFO(altout.tvo_params.saturation);
|
|
}
|
|
|
|
/* Set HUE */
|
|
data->regs[0x25] = ACCESS_FBINFO(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 a, b, c, 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;
|
|
MINFO_FROM(md->primary_head);
|
|
|
|
m->mode = ACCESS_FBINFO(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 inline 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, &ACCESS_FBINFO(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, &ACCESS_FBINFO(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);
|
|
MINFO_FROM(container_of(clnt->adapter, struct i2c_bit_adapter, adapter)->minfo);
|
|
|
|
md->primary_head = MINFO;
|
|
md->client = clnt;
|
|
down_write(&ACCESS_FBINFO(altout.lock));
|
|
ACCESS_FBINFO(outputs[1]).output = &maven_altout;
|
|
ACCESS_FBINFO(outputs[1]).src = ACCESS_FBINFO(outputs[1]).default_src;
|
|
ACCESS_FBINFO(outputs[1]).data = md;
|
|
ACCESS_FBINFO(outputs[1]).mode = MATROXFB_OUTPUT_MODE_MONITOR;
|
|
up_write(&ACCESS_FBINFO(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) {
|
|
MINFO_FROM(md->primary_head);
|
|
|
|
down_write(&ACCESS_FBINFO(altout.lock));
|
|
ACCESS_FBINFO(outputs[1]).src = MATROXFB_SRC_NONE;
|
|
ACCESS_FBINFO(outputs[1]).output = NULL;
|
|
ACCESS_FBINFO(outputs[1]).data = NULL;
|
|
ACCESS_FBINFO(outputs[1]).mode = MATROXFB_OUTPUT_MODE_MONITOR;
|
|
up_write(&ACCESS_FBINFO(altout.lock));
|
|
md->primary_head = NULL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static unsigned short normal_i2c[] = { MAVEN_I2CID, I2C_CLIENT_END };
|
|
I2C_CLIENT_INSMOD;
|
|
|
|
static struct i2c_driver maven_driver;
|
|
|
|
static int maven_detect_client(struct i2c_adapter* adapter, int address, int kind) {
|
|
int err = 0;
|
|
struct i2c_client* new_client;
|
|
struct maven_data* data;
|
|
|
|
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WRITE_WORD_DATA |
|
|
I2C_FUNC_SMBUS_BYTE_DATA |
|
|
I2C_FUNC_PROTOCOL_MANGLING))
|
|
goto ERROR0;
|
|
if (!(new_client = (struct i2c_client*)kmalloc(sizeof(*new_client) + sizeof(*data),
|
|
GFP_KERNEL))) {
|
|
err = -ENOMEM;
|
|
goto ERROR0;
|
|
}
|
|
memset(new_client, 0, sizeof(*new_client) + sizeof(*data));
|
|
data = (struct maven_data*)(new_client + 1);
|
|
i2c_set_clientdata(new_client, data);
|
|
new_client->addr = address;
|
|
new_client->adapter = adapter;
|
|
new_client->driver = &maven_driver;
|
|
new_client->flags = 0;
|
|
strcpy(new_client->name, "maven client");
|
|
if ((err = i2c_attach_client(new_client)))
|
|
goto ERROR3;
|
|
err = maven_init_client(new_client);
|
|
if (err)
|
|
goto ERROR4;
|
|
return 0;
|
|
ERROR4:;
|
|
i2c_detach_client(new_client);
|
|
ERROR3:;
|
|
kfree(new_client);
|
|
ERROR0:;
|
|
return err;
|
|
}
|
|
|
|
static int maven_attach_adapter(struct i2c_adapter* adapter) {
|
|
if (adapter->id == I2C_HW_B_G400)
|
|
return i2c_probe(adapter, &addr_data, &maven_detect_client);
|
|
return 0;
|
|
}
|
|
|
|
static int maven_detach_client(struct i2c_client* client) {
|
|
int err;
|
|
|
|
if ((err = i2c_detach_client(client))) {
|
|
printk(KERN_ERR "maven: Cannot deregister client\n");
|
|
return err;
|
|
}
|
|
maven_shutdown_client(client);
|
|
kfree(client);
|
|
return 0;
|
|
}
|
|
|
|
static struct i2c_driver maven_driver={
|
|
.driver = {
|
|
.name = "maven",
|
|
},
|
|
.id = I2C_DRIVERID_MGATVO,
|
|
.attach_adapter = maven_attach_adapter,
|
|
.detach_client = maven_detach_client,
|
|
};
|
|
|
|
/* ************************** */
|
|
|
|
static int matroxfb_maven_init(void) {
|
|
int err;
|
|
|
|
err = i2c_add_driver(&maven_driver);
|
|
if (err) {
|
|
printk(KERN_ERR "maven: Maven driver failed to register (%d).\n", err);
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void 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 */
|