mirror of https://gitee.com/openkylin/linux.git
drm/radeon/kms/evergreen: add hpd support
Hot plug detect (hpd) for digital monitors Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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@ -41,28 +41,180 @@ void evergreen_fini(struct radeon_device *rdev);
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bool evergreen_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd)
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{
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bool connected = false;
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/* XXX */
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switch (hpd) {
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case RADEON_HPD_1:
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if (RREG32(DC_HPD1_INT_STATUS) & DC_HPDx_SENSE)
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connected = true;
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break;
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case RADEON_HPD_2:
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if (RREG32(DC_HPD2_INT_STATUS) & DC_HPDx_SENSE)
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connected = true;
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break;
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case RADEON_HPD_3:
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if (RREG32(DC_HPD3_INT_STATUS) & DC_HPDx_SENSE)
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connected = true;
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break;
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case RADEON_HPD_4:
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if (RREG32(DC_HPD4_INT_STATUS) & DC_HPDx_SENSE)
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connected = true;
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break;
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case RADEON_HPD_5:
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if (RREG32(DC_HPD5_INT_STATUS) & DC_HPDx_SENSE)
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connected = true;
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break;
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case RADEON_HPD_6:
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if (RREG32(DC_HPD6_INT_STATUS) & DC_HPDx_SENSE)
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connected = true;
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break;
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default:
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break;
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}
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return connected;
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}
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void evergreen_hpd_set_polarity(struct radeon_device *rdev,
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enum radeon_hpd_id hpd)
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{
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/* XXX */
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u32 tmp;
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bool connected = evergreen_hpd_sense(rdev, hpd);
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switch (hpd) {
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case RADEON_HPD_1:
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tmp = RREG32(DC_HPD1_INT_CONTROL);
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if (connected)
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tmp &= ~DC_HPDx_INT_POLARITY;
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else
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tmp |= DC_HPDx_INT_POLARITY;
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WREG32(DC_HPD1_INT_CONTROL, tmp);
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break;
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case RADEON_HPD_2:
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tmp = RREG32(DC_HPD2_INT_CONTROL);
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if (connected)
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tmp &= ~DC_HPDx_INT_POLARITY;
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else
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tmp |= DC_HPDx_INT_POLARITY;
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WREG32(DC_HPD2_INT_CONTROL, tmp);
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break;
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case RADEON_HPD_3:
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tmp = RREG32(DC_HPD3_INT_CONTROL);
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if (connected)
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tmp &= ~DC_HPDx_INT_POLARITY;
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else
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tmp |= DC_HPDx_INT_POLARITY;
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WREG32(DC_HPD3_INT_CONTROL, tmp);
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break;
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case RADEON_HPD_4:
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tmp = RREG32(DC_HPD4_INT_CONTROL);
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if (connected)
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tmp &= ~DC_HPDx_INT_POLARITY;
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else
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tmp |= DC_HPDx_INT_POLARITY;
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WREG32(DC_HPD4_INT_CONTROL, tmp);
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break;
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case RADEON_HPD_5:
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tmp = RREG32(DC_HPD5_INT_CONTROL);
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if (connected)
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tmp &= ~DC_HPDx_INT_POLARITY;
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else
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tmp |= DC_HPDx_INT_POLARITY;
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WREG32(DC_HPD5_INT_CONTROL, tmp);
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break;
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case RADEON_HPD_6:
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tmp = RREG32(DC_HPD6_INT_CONTROL);
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if (connected)
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tmp &= ~DC_HPDx_INT_POLARITY;
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else
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tmp |= DC_HPDx_INT_POLARITY;
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WREG32(DC_HPD6_INT_CONTROL, tmp);
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break;
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default:
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break;
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}
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}
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void evergreen_hpd_init(struct radeon_device *rdev)
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{
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/* XXX */
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}
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struct drm_device *dev = rdev->ddev;
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struct drm_connector *connector;
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u32 tmp = DC_HPDx_CONNECTION_TIMER(0x9c4) |
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DC_HPDx_RX_INT_TIMER(0xfa) | DC_HPDx_EN;
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void evergreen_bandwidth_update(struct radeon_device *rdev)
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{
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/* XXX */
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list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
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struct radeon_connector *radeon_connector = to_radeon_connector(connector);
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switch (radeon_connector->hpd.hpd) {
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case RADEON_HPD_1:
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WREG32(DC_HPD1_CONTROL, tmp);
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rdev->irq.hpd[0] = true;
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break;
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case RADEON_HPD_2:
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WREG32(DC_HPD2_CONTROL, tmp);
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rdev->irq.hpd[1] = true;
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break;
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case RADEON_HPD_3:
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WREG32(DC_HPD3_CONTROL, tmp);
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rdev->irq.hpd[2] = true;
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break;
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case RADEON_HPD_4:
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WREG32(DC_HPD4_CONTROL, tmp);
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rdev->irq.hpd[3] = true;
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break;
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case RADEON_HPD_5:
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WREG32(DC_HPD5_CONTROL, tmp);
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rdev->irq.hpd[4] = true;
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break;
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case RADEON_HPD_6:
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WREG32(DC_HPD6_CONTROL, tmp);
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rdev->irq.hpd[5] = true;
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break;
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default:
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break;
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}
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}
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if (rdev->irq.installed)
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evergreen_irq_set(rdev);
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}
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void evergreen_hpd_fini(struct radeon_device *rdev)
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{
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struct drm_device *dev = rdev->ddev;
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struct drm_connector *connector;
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list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
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struct radeon_connector *radeon_connector = to_radeon_connector(connector);
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switch (radeon_connector->hpd.hpd) {
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case RADEON_HPD_1:
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WREG32(DC_HPD1_CONTROL, 0);
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rdev->irq.hpd[0] = false;
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break;
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case RADEON_HPD_2:
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WREG32(DC_HPD2_CONTROL, 0);
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rdev->irq.hpd[1] = false;
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break;
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case RADEON_HPD_3:
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WREG32(DC_HPD3_CONTROL, 0);
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rdev->irq.hpd[2] = false;
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break;
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case RADEON_HPD_4:
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WREG32(DC_HPD4_CONTROL, 0);
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rdev->irq.hpd[3] = false;
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break;
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case RADEON_HPD_5:
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WREG32(DC_HPD5_CONTROL, 0);
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rdev->irq.hpd[4] = false;
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break;
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case RADEON_HPD_6:
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WREG32(DC_HPD6_CONTROL, 0);
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rdev->irq.hpd[5] = false;
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break;
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default:
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break;
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}
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}
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}
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void evergreen_bandwidth_update(struct radeon_device *rdev)
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{
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/* XXX */
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}
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@ -1345,7 +1345,8 @@ extern void r600_hdmi_update_audio_settings(struct drm_encoder *encoder,
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extern void r700_cp_stop(struct radeon_device *rdev);
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extern void r700_cp_fini(struct radeon_device *rdev);
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void evergreen_disable_interrupt_state(struct radeon_device *rdev);
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extern void evergreen_disable_interrupt_state(struct radeon_device *rdev);
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extern int evergreen_irq_set(struct radeon_device *rdev);
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/* evergreen */
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struct evergreen_mc_save {
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