diff options
| author | Francisco Jerez <currojerez@riseup.net> | 2009-12-17 18:57:44 +0100 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2010-01-11 09:06:35 +1000 |
| commit | 0829168b474663d8b13f6105368dbbf4a1a03256 (patch) | |
| tree | 86ac590464503b008e04ff3bdb820c24956ca69e /drivers/gpu/drm/nouveau/nv17_tv.c | |
| parent | 11d6eb2af53395b25e1d6b8b79bb9a999c3e4c4d (diff) | |
| download | blackbird-op-linux-0829168b474663d8b13f6105368dbbf4a1a03256.tar.gz blackbird-op-linux-0829168b474663d8b13f6105368dbbf4a1a03256.zip | |
drm/nouveau: Implement nv42-nv43 TV load detection.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv17_tv.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv17_tv.c | 90 |
1 files changed, 89 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nv17_tv.c b/drivers/gpu/drm/nouveau/nv17_tv.c index 5fa4242e4c7d..58b917c3341b 100644 --- a/drivers/gpu/drm/nouveau/nv17_tv.c +++ b/drivers/gpu/drm/nouveau/nv17_tv.c @@ -33,15 +33,103 @@ #include "nouveau_hw.h" #include "nv17_tv.h" +static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder) +{ + struct drm_device *dev = encoder->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + uint32_t testval, regoffset = nv04_dac_output_offset(encoder); + uint32_t gpio0, gpio1, fp_htotal, fp_hsync_start, fp_hsync_end, + fp_control, test_ctrl, dacclk, ctv_14, ctv_1c, ctv_6c; + uint32_t sample = 0; + int head; + +#define RGB_TEST_DATA(r, g, b) (r << 0 | g << 10 | b << 20) + testval = RGB_TEST_DATA(0x82, 0xeb, 0x82); + if (dev_priv->vbios->tvdactestval) + testval = dev_priv->vbios->tvdactestval; + + dacclk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset); + head = (dacclk & 0x100) >> 8; + + /* Save the previous state. */ + gpio1 = nv17_gpio_get(dev, DCB_GPIO_TVDAC1); + gpio0 = nv17_gpio_get(dev, DCB_GPIO_TVDAC0); + fp_htotal = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL); + fp_hsync_start = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START); + fp_hsync_end = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_END); + fp_control = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_TG_CONTROL); + test_ctrl = NVReadRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset); + ctv_1c = NVReadRAMDAC(dev, head, 0x680c1c); + ctv_14 = NVReadRAMDAC(dev, head, 0x680c14); + ctv_6c = NVReadRAMDAC(dev, head, 0x680c6c); + + /* Prepare the DAC for load detection. */ + nv17_gpio_set(dev, DCB_GPIO_TVDAC1, true); + nv17_gpio_set(dev, DCB_GPIO_TVDAC0, true); + + NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL, 1343); + NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START, 1047); + NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_END, 1183); + NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_TG_CONTROL, + NV_PRAMDAC_FP_TG_CONTROL_DISPEN_POS | + NV_PRAMDAC_FP_TG_CONTROL_WIDTH_12 | + NV_PRAMDAC_FP_TG_CONTROL_READ_PROG | + NV_PRAMDAC_FP_TG_CONTROL_HSYNC_POS | + NV_PRAMDAC_FP_TG_CONTROL_VSYNC_POS); + + NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset, 0); + + NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset, + (dacclk & ~0xff) | 0x22); + msleep(1); + NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset, + (dacclk & ~0xff) | 0x21); + + NVWriteRAMDAC(dev, head, 0x680c1c, 1 << 20); + NVWriteRAMDAC(dev, head, 0x680c14, 4 << 16); + + /* Sample pin 0x4 (usually S-video luma). */ + NVWriteRAMDAC(dev, head, 0x680c6c, testval >> 10 & 0x3ff); + msleep(20); + sample |= NVReadRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset) + & 0x4 << 28; + + /* Sample the remaining pins. */ + NVWriteRAMDAC(dev, head, 0x680c6c, testval & 0x3ff); + msleep(20); + sample |= NVReadRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset) + & 0xa << 28; + + /* Restore the previous state. */ + NVWriteRAMDAC(dev, head, 0x680c1c, ctv_1c); + NVWriteRAMDAC(dev, head, 0x680c14, ctv_14); + NVWriteRAMDAC(dev, head, 0x680c6c, ctv_6c); + NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset, dacclk); + NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset, test_ctrl); + NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_TG_CONTROL, fp_control); + NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_END, fp_hsync_end); + NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START, fp_hsync_start); + NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL, fp_htotal); + nv17_gpio_set(dev, DCB_GPIO_TVDAC1, gpio1); + nv17_gpio_set(dev, DCB_GPIO_TVDAC0, gpio0); + + return sample; +} + static enum drm_connector_status nv17_tv_detect(struct drm_encoder *encoder, struct drm_connector *connector) { struct drm_device *dev = encoder->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; struct drm_mode_config *conf = &dev->mode_config; struct nv17_tv_encoder *tv_enc = to_tv_enc(encoder); struct dcb_entry *dcb = tv_enc->base.dcb; - tv_enc->pin_mask = nv17_dac_sample_load(encoder) >> 28 & 0xe; + if (dev_priv->chipset == 0x42 || + dev_priv->chipset == 0x43) + tv_enc->pin_mask = nv42_tv_sample_load(encoder) >> 28 & 0xe; + else + tv_enc->pin_mask = nv17_dac_sample_load(encoder) >> 28 & 0xe; switch (tv_enc->pin_mask) { case 0x2: |
