Firebee/FireBee_SVN
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

add more Radeon functionality

Browse Source
This commit is contained in:
Markus Fröschle
2016-11-02 06:26:04 +00:00
parent f2ed9ccece
commit 2d1f0e8121
22 changed files with 774 additions and 273 deletions
Download Patch File Download Diff File Expand all files Collapse all files

97
BaS_gcc/radeon/radeon_i2c.c
View File

@@ -1,25 +1,30 @@
#include "video.h"
#include "radeonfb.h"
// #include "relocate.h"
#include "edid.h"
#include "i2c.h"
#include "driver_mem.h"
#define DEBUG
#include "debug.h"
#define CONFIG_FB_RADEON_I2C
#ifdef CONFIG_FB_RADEON_I2C
#define RADEON_DDC 0x50
extern void mdelay(long msec);
extern void udelay(long usec);
static void radeon_gpio_setscl(void* data, int state)
{
struct radeon_i2c_chan *chan = data;
struct radeonfb_info *rinfo = chan->rinfo;
unsigned long val;
val = INREG(chan->ddc_reg) & ~(VGA_DDC_CLK_OUT_EN);
if(!state)
if (!state)
val |= VGA_DDC_CLK_OUT_EN;
OUTREG(chan->ddc_reg, val);
(void)INREG(chan->ddc_reg);
(void) INREG(chan->ddc_reg);
}
static void radeon_gpio_setsda(void* data, int state)
@@ -27,11 +32,12 @@ static void radeon_gpio_setsda(void* data, int state)
struct radeon_i2c_chan *chan = data;
struct radeonfb_info *rinfo = chan->rinfo;
unsigned long val;
val = INREG(chan->ddc_reg) & ~(VGA_DDC_DATA_OUT_EN);
if(!state)
if (!state)
val |= VGA_DDC_DATA_OUT_EN;
OUTREG(chan->ddc_reg, val);
(void)INREG(chan->ddc_reg);
(void) INREG(chan->ddc_reg);
}
static int radeon_gpio_getscl(void* data)
@@ -39,8 +45,9 @@ static int radeon_gpio_getscl(void* data)
struct radeon_i2c_chan *chan = data;
struct radeonfb_info *rinfo = chan->rinfo;
unsigned long val;
val = INREG(chan->ddc_reg);
return(val & VGA_DDC_CLK_INPUT) ? 1 : 0;
return (val & VGA_DDC_CLK_INPUT) ? 1 : 0;
}
static int radeon_gpio_getsda(void* data)
@@ -129,8 +136,10 @@ static unsigned char *radeon_do_probe_i2c_edid(struct radeon_i2c_chan *chan)
return NULL;
msgs[1].buf = buf;
if(i2c_transfer(&chan->adapter, msgs, 2) == 2)
if (i2c_transfer(&chan->adapter, msgs, 2) == 2)
return buf;
else
err("i2c_transfer() failed\r\n");
driver_mem_free(buf);
return NULL;
@@ -138,14 +147,14 @@ static unsigned char *radeon_do_probe_i2c_edid(struct radeon_i2c_chan *chan)
int32_t radeon_probe_i2c_connector(struct radeonfb_info *rinfo, int32_t conn, uint8_t **out_edid)
{
unsigned long reg = rinfo->i2c[conn-1].ddc_reg;
unsigned long reg = rinfo->i2c[conn - 1].ddc_reg;
unsigned char *edid = NULL;
int i, j;
// DPRINTVAL("radeonfb: radeon_probe_i2c_connector ", conn);
// DPRINT("\r\n");
OUTREG(reg, INREG(reg) & ~(VGA_DDC_DATA_OUTPUT | VGA_DDC_CLK_OUTPUT));
OUTREG(reg, INREG(reg) & ~(VGA_DDC_CLK_OUT_EN));
(void)INREG(reg);
(void) INREG(reg);
for(i = 0; i < 3; i++)
{
/* For some old monitors we need the
@@ -153,56 +162,68 @@ int32_t radeon_probe_i2c_connector(struct radeonfb_info *rinfo, int32_t conn, ui
*/
OUTREG(reg, INREG(reg) & ~(VGA_DDC_DATA_OUT_EN));
(void)INREG(reg);
mdelay(13);
wait_ms(13);
OUTREG(reg, INREG(reg) & ~(VGA_DDC_CLK_OUT_EN));
(void)INREG(reg);
for(j = 0; j < 5; j++)
{
mdelay(10);
if(INREG(reg) & VGA_DDC_CLK_INPUT)
wait_ms(10);
if (INREG(reg) & VGA_DDC_CLK_INPUT)
break;
}
if(j == 5)
if (j == 5)
continue;
OUTREG(reg, INREG(reg) | VGA_DDC_DATA_OUT_EN);
(void)INREG(reg);
mdelay(15);
(void) INREG(reg);
wait_ms(15);
OUTREG(reg, INREG(reg) | VGA_DDC_CLK_OUT_EN);
(void)INREG(reg);
mdelay(15);
(void) INREG(reg);
wait_ms(15);
OUTREG(reg, INREG(reg) & ~(VGA_DDC_DATA_OUT_EN));
(void)INREG(reg);
mdelay(15);
(void) INREG(reg);
wait_ms(15);
/* Do the real work */
edid = radeon_do_probe_i2c_edid(&rinfo->i2c[conn-1]);
edid = radeon_do_probe_i2c_edid(&rinfo->i2c[conn - 1]);
OUTREG(reg, INREG(reg) | (VGA_DDC_DATA_OUT_EN | VGA_DDC_CLK_OUT_EN));
(void)INREG(reg);
mdelay(15);
(void) INREG(reg);
wait_ms(15);
OUTREG(reg, INREG(reg) & ~(VGA_DDC_CLK_OUT_EN));
(void)INREG(reg);
(void) INREG(reg);
for(j = 0; j < 10; j++)
{
mdelay(10);
if(INREG(reg) & VGA_DDC_CLK_INPUT)
wait_ms(10);
if (INREG(reg) & VGA_DDC_CLK_INPUT)
break;
}
OUTREG(reg, INREG(reg) & ~(VGA_DDC_DATA_OUT_EN));
(void)INREG(reg);
mdelay(15);
(void) INREG(reg);
wait_ms(15);
OUTREG(reg, INREG(reg) | (VGA_DDC_DATA_OUT_EN | VGA_DDC_CLK_OUT_EN));
(void)INREG(reg);
if(edid)
(void) INREG(reg);
if (edid)
break;
}
/* Release the DDC lines when done or the Apple Cinema HD display
* will switch off */
OUTREG(reg, INREG(reg) & ~(VGA_DDC_CLK_OUT_EN | VGA_DDC_DATA_OUT_EN));
(void)INREG(reg);
if(out_edid)
(void) INREG(reg);
if (out_edid)
*out_edid = edid;
if(!edid)
if (!edid)
return MT_NONE;
if(edid[0x14] & 0x80)
if (edid[0x14] & 0x80)
{
/* Fix detection using BIOS tables */
if(rinfo->is_mobility /*&& conn == ddc_dvi*/ && (INREG(LVDS_GEN_CNTL) & LVDS_ON))