]> git.karo-electronics.de Git - karo-tx-linux.git/blobdiff - drivers/gpu/drm/radeon/radeon_combios.c
drm/radeon/kms: add support for external tmds on legacy boards
[karo-tx-linux.git] / drivers / gpu / drm / radeon / radeon_combios.c
index e2a51de67aa14cdfae2c04cf0a12c0eecfa01c69..f745971c6a53e5a1a654050eb5319fe19867e61f 100644 (file)
@@ -993,8 +993,8 @@ static const struct radeon_tmds_pll default_tmds_pll[CHIP_LAST][4] = {
        {{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},        /* CHIP_R420  */
        {{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},        /* CHIP_R423  */
        {{0xffffffff, 0xb01cb}, {0, 0}, {0, 0}, {0, 0}},        /* CHIP_RV410 */
-       {{15000, 0xb0155}, {0xffffffff, 0xb01cb}, {0, 0}, {0, 0}},      /* CHIP_RS400 */
-       {{15000, 0xb0155}, {0xffffffff, 0xb01cb}, {0, 0}, {0, 0}},      /* CHIP_RS480 */
+       { {0, 0}, {0, 0}, {0, 0}, {0, 0} },     /* CHIP_RS400 */
+       { {0, 0}, {0, 0}, {0, 0}, {0, 0} },     /* CHIP_RS480 */
 };
 
 bool radeon_legacy_get_tmds_info_from_table(struct radeon_encoder *encoder,
@@ -1028,7 +1028,6 @@ bool radeon_legacy_get_tmds_info_from_combios(struct radeon_encoder *encoder,
        tmds_info = combios_get_table_offset(dev, COMBIOS_DFP_INFO_TABLE);
 
        if (tmds_info) {
-
                ver = RBIOS8(tmds_info);
                DRM_INFO("DFP table revision: %d\n", ver);
                if (ver == 3) {
@@ -1063,45 +1062,132 @@ bool radeon_legacy_get_tmds_info_from_combios(struct radeon_encoder *encoder,
                                          tmds->tmds_pll[i].value);
                        }
                }
-       } else
+       } else {
                DRM_INFO("No TMDS info found in BIOS\n");
+               return false;
+       }
        return true;
 }
 
-struct radeon_encoder_int_tmds *radeon_combios_get_tmds_info(struct radeon_encoder *encoder)
+bool radeon_legacy_get_ext_tmds_info_from_table(struct radeon_encoder *encoder,
+                                               struct radeon_encoder_ext_tmds *tmds)
 {
-       struct radeon_encoder_int_tmds *tmds = NULL;
-       bool ret;
-
-       tmds = kzalloc(sizeof(struct radeon_encoder_int_tmds), GFP_KERNEL);
+       struct drm_device *dev = encoder->base.dev;
+       struct radeon_device *rdev = dev->dev_private;
+       struct radeon_i2c_bus_rec i2c_bus;
 
-       if (!tmds)
-               return NULL;
+       /* default for macs */
+       i2c_bus = combios_setup_i2c_bus(RADEON_GPIO_MONID);
+       tmds->i2c_bus = radeon_i2c_create(dev, &i2c_bus, "DVO");
 
-       ret = radeon_legacy_get_tmds_info_from_combios(encoder, tmds);
-       if (ret == false)
-               radeon_legacy_get_tmds_info_from_table(encoder, tmds);
+       /* XXX some macs have duallink chips */
+       switch (rdev->mode_info.connector_table) {
+       case CT_POWERBOOK_EXTERNAL:
+       case CT_MINI_EXTERNAL:
+       default:
+               tmds->dvo_chip = DVO_SIL164;
+               tmds->slave_addr = 0x70 >> 1; /* 7 bit addressing */
+               break;
+       }
 
-       return tmds;
+       return true;
 }
 
-void radeon_combios_get_ext_tmds_info(struct radeon_encoder *encoder)
+bool radeon_legacy_get_ext_tmds_info_from_combios(struct radeon_encoder *encoder,
+                                                 struct radeon_encoder_ext_tmds *tmds)
 {
        struct drm_device *dev = encoder->base.dev;
        struct radeon_device *rdev = dev->dev_private;
-       uint16_t ext_tmds_info;
-       uint8_t ver;
+       uint16_t offset;
+       uint8_t ver, id, blocks, clk, data;
+       int i;
+       enum radeon_combios_ddc gpio;
+       struct radeon_i2c_bus_rec i2c_bus;
 
        if (rdev->bios == NULL)
-               return;
+               return false;
 
-       ext_tmds_info =
-           combios_get_table_offset(dev, COMBIOS_EXT_TMDS_INFO_TABLE);
-       if (ext_tmds_info) {
-               ver = RBIOS8(ext_tmds_info);
-               DRM_INFO("External TMDS Table revision: %d\n", ver);
-               // TODO
+       tmds->i2c_bus = NULL;
+       if (rdev->flags & RADEON_IS_IGP) {
+               offset = combios_get_table_offset(dev, COMBIOS_I2C_INFO_TABLE);
+               if (offset) {
+                       ver = RBIOS8(offset);
+                       DRM_INFO("GPIO Table revision: %d\n", ver);
+                       blocks = RBIOS8(offset + 2);
+                       for (i = 0; i < blocks; i++) {
+                               id = RBIOS8(offset + 3 + (i * 5) + 0);
+                               if (id == 136) {
+                                       clk = RBIOS8(offset + 3 + (i * 5) + 3);
+                                       data = RBIOS8(offset + 3 + (i * 5) + 4);
+                                       i2c_bus.valid = true;
+                                       i2c_bus.mask_clk_mask = (1 << clk);
+                                       i2c_bus.mask_data_mask = (1 << data);
+                                       i2c_bus.a_clk_mask = (1 << clk);
+                                       i2c_bus.a_data_mask = (1 << data);
+                                       i2c_bus.en_clk_mask = (1 << clk);
+                                       i2c_bus.en_data_mask = (1 << data);
+                                       i2c_bus.y_clk_mask = (1 << clk);
+                                       i2c_bus.y_data_mask = (1 << data);
+                                       i2c_bus.mask_clk_reg = RADEON_GPIOPAD_MASK;
+                                       i2c_bus.mask_data_reg = RADEON_GPIOPAD_MASK;
+                                       i2c_bus.a_clk_reg = RADEON_GPIOPAD_A;
+                                       i2c_bus.a_data_reg = RADEON_GPIOPAD_A;
+                                       i2c_bus.en_clk_reg = RADEON_GPIOPAD_EN;
+                                       i2c_bus.en_data_reg = RADEON_GPIOPAD_EN;
+                                       i2c_bus.y_clk_reg = RADEON_GPIOPAD_Y;
+                                       i2c_bus.y_data_reg = RADEON_GPIOPAD_Y;
+                                       tmds->i2c_bus = radeon_i2c_create(dev, &i2c_bus, "DVO");
+                                       tmds->dvo_chip = DVO_SIL164;
+                                       tmds->slave_addr = 0x70 >> 1; /* 7 bit addressing */
+                                       break;
+                               }
+                       }
+               }
+       } else {
+               offset = combios_get_table_offset(dev, COMBIOS_EXT_TMDS_INFO_TABLE);
+               if (offset) {
+                       ver = RBIOS8(offset);
+                       DRM_INFO("External TMDS Table revision: %d\n", ver);
+                       tmds->slave_addr = RBIOS8(offset + 4 + 2);
+                       tmds->slave_addr >>= 1; /* 7 bit addressing */
+                       gpio = RBIOS8(offset + 4 + 3);
+                       switch (gpio) {
+                       case DDC_MONID:
+                               i2c_bus = combios_setup_i2c_bus(RADEON_GPIO_MONID);
+                               tmds->i2c_bus = radeon_i2c_create(dev, &i2c_bus, "DVO");
+                               break;
+                       case DDC_DVI:
+                               i2c_bus = combios_setup_i2c_bus(RADEON_GPIO_DVI_DDC);
+                               tmds->i2c_bus = radeon_i2c_create(dev, &i2c_bus, "DVO");
+                               break;
+                       case DDC_VGA:
+                               i2c_bus = combios_setup_i2c_bus(RADEON_GPIO_VGA_DDC);
+                               tmds->i2c_bus = radeon_i2c_create(dev, &i2c_bus, "DVO");
+                               break;
+                       case DDC_CRT2:
+                               /* R3xx+ chips don't have GPIO_CRT2_DDC gpio pad */
+                               if (rdev->family >= CHIP_R300)
+                                       i2c_bus = combios_setup_i2c_bus(RADEON_GPIO_MONID);
+                               else
+                                       i2c_bus = combios_setup_i2c_bus(RADEON_GPIO_CRT2_DDC);
+                               tmds->i2c_bus = radeon_i2c_create(dev, &i2c_bus, "DVO");
+                               break;
+                       case DDC_LCD: /* MM i2c */
+                               DRM_ERROR("MM i2c requires hw i2c engine\n");
+                               break;
+                       default:
+                               DRM_ERROR("Unsupported gpio %d\n", gpio);
+                               break;
+                       }
+               }
        }
+
+       if (!tmds->i2c_bus) {
+               DRM_INFO("No valid Ext TMDS info found in BIOS\n");
+               return false;
+       }
+
+       return true;
 }
 
 bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
@@ -1577,10 +1663,15 @@ static bool radeon_apply_legacy_quirks(struct drm_device *dev,
                ddc_i2c->a_data_reg = RADEON_GPIOPAD_A;
                ddc_i2c->en_clk_reg = RADEON_GPIOPAD_EN;
                ddc_i2c->en_data_reg = RADEON_GPIOPAD_EN;
-               ddc_i2c->y_clk_reg = RADEON_LCD_GPIO_Y_REG;
-               ddc_i2c->y_data_reg = RADEON_LCD_GPIO_Y_REG;
+               ddc_i2c->y_clk_reg = RADEON_GPIOPAD_Y;
+               ddc_i2c->y_data_reg = RADEON_GPIOPAD_Y;
        }
 
+       /* R3xx+ chips don't have GPIO_CRT2_DDC gpio pad */
+       if ((rdev->family >= CHIP_R300) &&
+           ddc_i2c->mask_clk_reg == RADEON_GPIO_CRT2_DDC)
+               *ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_DVI_DDC);
+
        /* Certain IBM chipset RN50s have a BIOS reporting two VGAs,
           one with VGA DDC and one with CRT2 DDC. - kill the CRT2 DDC one */
        if (dev->pdev->device == 0x515e &&
@@ -2014,6 +2105,193 @@ bool radeon_get_legacy_connector_info_from_bios(struct drm_device *dev)
        return true;
 }
 
+void radeon_external_tmds_setup(struct drm_encoder *encoder)
+{
+       struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+       struct radeon_encoder_ext_tmds *tmds = radeon_encoder->enc_priv;
+
+       if (!tmds)
+               return;
+
+       switch (tmds->dvo_chip) {
+       case DVO_SIL164:
+               /* sil 164 */
+               radeon_i2c_do_lock(tmds->i2c_bus, 1);
+               radeon_i2c_sw_put_byte(tmds->i2c_bus,
+                                      tmds->slave_addr,
+                                      0x08, 0x30);
+               radeon_i2c_sw_put_byte(tmds->i2c_bus,
+                                      tmds->slave_addr,
+                                      0x09, 0x00);
+               radeon_i2c_sw_put_byte(tmds->i2c_bus,
+                                      tmds->slave_addr,
+                                      0x0a, 0x90);
+               radeon_i2c_sw_put_byte(tmds->i2c_bus,
+                                      tmds->slave_addr,
+                                      0x0c, 0x89);
+               radeon_i2c_sw_put_byte(tmds->i2c_bus,
+                                      tmds->slave_addr,
+                                      0x08, 0x3b);
+               radeon_i2c_do_lock(tmds->i2c_bus, 0);
+               break;
+       case DVO_SIL1178:
+               /* sil 1178 - untested */
+               /*
+                * 0x0f, 0x44
+                * 0x0f, 0x4c
+                * 0x0e, 0x01
+                * 0x0a, 0x80
+                * 0x09, 0x30
+                * 0x0c, 0xc9
+                * 0x0d, 0x70
+                * 0x08, 0x32
+                * 0x08, 0x33
+                */
+               break;
+       default:
+               break;
+       }
+
+}
+
+bool radeon_combios_external_tmds_setup(struct drm_encoder *encoder)
+{
+       struct drm_device *dev = encoder->dev;
+       struct radeon_device *rdev = dev->dev_private;
+       struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+       uint16_t offset;
+       uint8_t blocks, slave_addr, rev;
+       uint32_t index, id;
+       uint32_t reg, val, and_mask, or_mask;
+       struct radeon_encoder_ext_tmds *tmds = radeon_encoder->enc_priv;
+
+       if (rdev->bios == NULL)
+               return false;
+
+       if (!tmds)
+               return false;
+
+       if (rdev->flags & RADEON_IS_IGP) {
+               offset = combios_get_table_offset(dev, COMBIOS_TMDS_POWER_ON_TABLE);
+               rev = RBIOS8(offset);
+               if (offset) {
+                       rev = RBIOS8(offset);
+                       if (rev > 1) {
+                               blocks = RBIOS8(offset + 3);
+                               index = offset + 4;
+                               while (blocks > 0) {
+                                       id = RBIOS16(index);
+                                       index += 2;
+                                       switch (id >> 13) {
+                                       case 0:
+                                               reg = (id & 0x1fff) * 4;
+                                               val = RBIOS32(index);
+                                               index += 4;
+                                               WREG32(reg, val);
+                                               break;
+                                       case 2:
+                                               reg = (id & 0x1fff) * 4;
+                                               and_mask = RBIOS32(index);
+                                               index += 4;
+                                               or_mask = RBIOS32(index);
+                                               index += 4;
+                                               val = RREG32(reg);
+                                               val = (val & and_mask) | or_mask;
+                                               WREG32(reg, val);
+                                               break;
+                                       case 3:
+                                               val = RBIOS16(index);
+                                               index += 2;
+                                               udelay(val);
+                                               break;
+                                       case 4:
+                                               val = RBIOS16(index);
+                                               index += 2;
+                                               udelay(val * 1000);
+                                               break;
+                                       case 6:
+                                               slave_addr = id & 0xff;
+                                               slave_addr >>= 1; /* 7 bit addressing */
+                                               index++;
+                                               reg = RBIOS8(index);
+                                               index++;
+                                               val = RBIOS8(index);
+                                               index++;
+                                               radeon_i2c_do_lock(tmds->i2c_bus, 1);
+                                               radeon_i2c_sw_put_byte(tmds->i2c_bus,
+                                                                      slave_addr,
+                                                                      reg, val);
+                                               radeon_i2c_do_lock(tmds->i2c_bus, 0);
+                                               break;
+                                       default:
+                                               DRM_ERROR("Unknown id %d\n", id >> 13);
+                                               break;
+                                       }
+                                       blocks--;
+                               }
+                               return true;
+                       }
+               }
+       } else {
+               offset = combios_get_table_offset(dev, COMBIOS_EXT_TMDS_INFO_TABLE);
+               if (offset) {
+                       index = offset + 10;
+                       id = RBIOS16(index);
+                       while (id != 0xffff) {
+                               index += 2;
+                               switch (id >> 13) {
+                               case 0:
+                                       reg = (id & 0x1fff) * 4;
+                                       val = RBIOS32(index);
+                                       WREG32(reg, val);
+                                       break;
+                               case 2:
+                                       reg = (id & 0x1fff) * 4;
+                                       and_mask = RBIOS32(index);
+                                       index += 4;
+                                       or_mask = RBIOS32(index);
+                                       index += 4;
+                                       val = RREG32(reg);
+                                       val = (val & and_mask) | or_mask;
+                                       WREG32(reg, val);
+                                       break;
+                               case 4:
+                                       val = RBIOS16(index);
+                                       index += 2;
+                                       udelay(val);
+                                       break;
+                               case 5:
+                                       reg = id & 0x1fff;
+                                       and_mask = RBIOS32(index);
+                                       index += 4;
+                                       or_mask = RBIOS32(index);
+                                       index += 4;
+                                       val = RREG32_PLL(reg);
+                                       val = (val & and_mask) | or_mask;
+                                       WREG32_PLL(reg, val);
+                                       break;
+                               case 6:
+                                       reg = id & 0x1fff;
+                                       val = RBIOS8(index);
+                                       index += 1;
+                                       radeon_i2c_do_lock(tmds->i2c_bus, 1);
+                                       radeon_i2c_sw_put_byte(tmds->i2c_bus,
+                                                              tmds->slave_addr,
+                                                              reg, val);
+                                       radeon_i2c_do_lock(tmds->i2c_bus, 0);
+                                       break;
+                               default:
+                                       DRM_ERROR("Unknown id %d\n", id >> 13);
+                                       break;
+                               }
+                               id = RBIOS16(index);
+                       }
+                       return true;
+               }
+       }
+       return false;
+}
+
 static void combios_parse_mmio_table(struct drm_device *dev, uint16_t offset)
 {
        struct radeon_device *rdev = dev->dev_private;