void viafb_set_gamma_table(int bpp, unsigned int *gamma_table)
{
int i, sr1a;
int active_device_amount = 0;
int device_status = viafb_DeviceStatus;
for (i = 0; i < sizeof(viafb_DeviceStatus) * 8; i++) {
if (device_status & 1)
active_device_amount++;
device_status >>= 1;
}
if (bpp == 8)
return ;
switch (viaparinfo->chip_info->gfx_chip_name) {
case UNICHROME_CLE266:
case UNICHROME_K400:
viafb_write_reg_mask(SR16, VIASR, 0x80, BIT7);
break;
case UNICHROME_K800:
case UNICHROME_PM800:
case UNICHROME_CN700:
case UNICHROME_CX700:
case UNICHROME_K8M890:
case UNICHROME_P4M890:
case UNICHROME_P4M900:
viafb_write_reg_mask(CR33, VIACR, 0x80, BIT7);
break;
}
sr1a = (unsigned int)viafb_read_reg(VIASR, SR1A);
viafb_write_reg_mask(SR1A, VIASR, 0x0, BIT0);
outb(0, LUT_INDEX_WRITE);
for (i = 0; i < 256; i++) {
outb(gamma_table[i] >> 16, LUT_DATA);
outb(gamma_table[i] >> 8 & 0xFF, LUT_DATA);
outb(gamma_table[i] & 0xFF, LUT_DATA);
}
if ((active_device_amount > 1) &&
!((viaparinfo->chip_info->gfx_chip_name ==
UNICHROME_CLE266) &&
(viaparinfo->chip_info->gfx_chip_revision < 15))) {
viafb_write_reg_mask(SR1A, VIASR, 0x01, BIT0);
viafb_write_reg_mask(CR6A, VIACR, 0x02, BIT1);
outb(0, LUT_INDEX_WRITE);
for (i = 0; i < 256; i++) {
outb(gamma_table[i] >> 16, LUT_DATA);
outb(gamma_table[i] >> 8 & 0xFF, LUT_DATA);
outb(gamma_table[i] & 0xFF, LUT_DATA);
}
}
void viafb_enable_lvds_vt1636(struct lvds_setting_information
*plvds_setting_info,
struct lvds_chip_information *plvds_chip_info)
{
viafb_gpio_i2c_write_mask_lvds(plvds_setting_info, plvds_chip_info,
VDD_ON_TBL_VT1636[0]);
/* Pad on: */
switch (plvds_chip_info->output_interface) {
case INTERFACE_DVP0:
{
viafb_write_reg_mask(SR1E, VIASR, 0xC0, 0xC0);
break;
}
case INTERFACE_DVP1:
{
viafb_write_reg_mask(SR1E, VIASR, 0x30, 0x30);
break;
}
case INTERFACE_DFP_LOW:
{
viafb_write_reg_mask(SR2A, VIASR, 0x03, 0x03);
break;
}
case INTERFACE_DFP_HIGH:
{
viafb_write_reg_mask(SR2A, VIASR, 0x03, 0x0C);
break;
}
}
}
bool __devinit viafb_tmds_trasmitter_identify(void)
{
unsigned char sr2a = 0, sr1e = 0, sr3e = 0;
/* Turn on ouputting pad */
switch (viaparinfo->chip_info->gfx_chip_name) {
case UNICHROME_K8M890:
/*=* DFP Low Pad on *=*/
sr2a = viafb_read_reg(VIASR, SR2A);
viafb_write_reg_mask(SR2A, VIASR, 0x03, BIT0 + BIT1);
break;
case UNICHROME_P4M900:
case UNICHROME_P4M890:
/* DFP Low Pad on */
sr2a = viafb_read_reg(VIASR, SR2A);
viafb_write_reg_mask(SR2A, VIASR, 0x03, BIT0 + BIT1);
/* DVP0 Pad on */
sr1e = viafb_read_reg(VIASR, SR1E);
viafb_write_reg_mask(SR1E, VIASR, 0xC0, BIT6 + BIT7);
break;
default:
/* DVP0/DVP1 Pad on */
sr1e = viafb_read_reg(VIASR, SR1E);
viafb_write_reg_mask(SR1E, VIASR, 0xF0, BIT4 +
BIT5 + BIT6 + BIT7);
/* SR3E[1]Multi-function selection:
0 = Emulate I2C and DDC bus by GPIO2/3/4. */
sr3e = viafb_read_reg(VIASR, SR3E);
viafb_write_reg_mask(SR3E, VIASR, 0x0, BIT5);
break;
}
/* Check for VT1632: */
viaparinfo->chip_info->tmds_chip_info.tmds_chip_name = VT1632_TMDS;
viaparinfo->chip_info->
tmds_chip_info.tmds_chip_slave_addr = VT1632_TMDS_I2C_ADDR;
viaparinfo->chip_info->tmds_chip_info.i2c_port = VIA_PORT_31;
if (check_tmds_chip(VT1632_DEVICE_ID_REG, VT1632_DEVICE_ID)) {
/*
* Currently only support 12bits,dual edge,add 24bits mode later
*/
tmds_register_write(0x08, 0x3b);
DEBUG_MSG(KERN_INFO "\n VT1632 TMDS ! \n");
DEBUG_MSG(KERN_INFO "\n %2d",
viaparinfo->chip_info->tmds_chip_info.tmds_chip_name);
DEBUG_MSG(KERN_INFO "\n %2d",
viaparinfo->chip_info->tmds_chip_info.i2c_port);
return true;
} else {
viaparinfo->chip_info->tmds_chip_info.i2c_port = VIA_PORT_2C;
if (check_tmds_chip(VT1632_DEVICE_ID_REG, VT1632_DEVICE_ID)) {
tmds_register_write(0x08, 0x3b);
DEBUG_MSG(KERN_INFO "\n VT1632 TMDS ! \n");
DEBUG_MSG(KERN_INFO "\n %2d",
viaparinfo->chip_info->
tmds_chip_info.tmds_chip_name);
DEBUG_MSG(KERN_INFO "\n %2d",
viaparinfo->chip_info->
tmds_chip_info.i2c_port);
return true;
}
}
viaparinfo->chip_info->tmds_chip_info.tmds_chip_name = INTEGRATED_TMDS;
if ((viaparinfo->chip_info->gfx_chip_name == UNICHROME_CX700) &&
((viafb_display_hardware_layout == HW_LAYOUT_DVI_ONLY) ||
(viafb_display_hardware_layout == HW_LAYOUT_LCD_DVI))) {
DEBUG_MSG(KERN_INFO "\n Integrated TMDS ! \n");
return true;
}
switch (viaparinfo->chip_info->gfx_chip_name) {
case UNICHROME_K8M890:
viafb_write_reg(SR2A, VIASR, sr2a);
break;
case UNICHROME_P4M900:
case UNICHROME_P4M890:
viafb_write_reg(SR2A, VIASR, sr2a);
viafb_write_reg(SR1E, VIASR, sr1e);
break;
default:
viafb_write_reg(SR1E, VIASR, sr1e);
viafb_write_reg(SR3E, VIASR, sr3e);
break;
}
viaparinfo->chip_info->
tmds_chip_info.tmds_chip_name = NON_TMDS_TRANSMITTER;
viaparinfo->chip_info->tmds_chip_info.
tmds_chip_slave_addr = VT1632_TMDS_I2C_ADDR;
return false;
}