diff options
Diffstat (limited to 'src/radeon_bios.c')
| -rw-r--r-- | src/radeon_bios.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/radeon_bios.c b/src/radeon_bios.c index b24c4817..af98cf73 100644 --- a/src/radeon_bios.c +++ b/src/radeon_bios.c @@ -884,6 +884,47 @@ Bool RADEONGetTMDSInfoFromBIOS (xf86OutputPtr output) return FALSE; } +Bool RADEONGetExtTMDSInfoFromBIOS (xf86OutputPtr output) +{ + ScrnInfoPtr pScrn = output->scrn; + RADEONInfoPtr info = RADEONPTR(pScrn); + RADEONOutputPrivatePtr radeon_output = output->driver_private; + int offset, table_start, max_freq, gpio_reg, flags; + + if (!info->VBIOS) return FALSE; + + if (info->IsAtomBios) { + return FALSE; + } else { + offset = RADEON_BIOS16(info->ROMHeaderStart + 0x58); + if (offset) { + table_start = offset + 4; + max_freq = RADEON_BIOS16(table_start); + radeon_output->dvo_slave_addr = RADEON_BIOS8(table_start+2); + gpio_reg = RADEON_BIOS8(table_start+3); + if (gpio_reg == 1) + radeon_output->dvo_i2c_reg = RADEON_GPIO_MONID; + else if (gpio_reg == 2) + radeon_output->dvo_i2c_reg = RADEON_GPIO_DVI_DDC; + else if (gpio_reg == 3) + radeon_output->dvo_i2c_reg = RADEON_GPIO_VGA_DDC; + else if (gpio_reg == 4) + radeon_output->dvo_i2c_reg = RADEON_GPIO_CRT2_DDC; + /*else if (gpio_reg == 5) + radeon_output->dvo_i2c_reg = RADEON_GPIO_MM;*/ + else { + ErrorF("unknown gpio reg: %d\n", gpio_reg); + return FALSE; + } + flags = RADEON_BIOS8(table_start+5); + /* XXX: init command list */ + return TRUE; + } + } + + return FALSE; +} + /* support for init from bios tables * * Based heavily on the netbsd radeonfb driver |