nr-irqs.rar_V2

#include <drm/drmP.h> #include <drm/drm_crtc_helper.h> #include <drm/radeon_drm.h> #include "radeon.h" #include "atom.h" #include <linux/backlight.h> extern int atom_debug; static u8 radeon_atom_get_backlight_level_from_reg(struct radeon_device *rdev) { u8 backlight_level; u32 bios_2_scratch; if (rdev->family >= CHIP_R600) bios_2_scratch = RREG32(R600_BIOS_2_SCRATCH); else bios_2_scratch = RREG32(RADEON_BIOS_2_SCRATCH); backlight_level = ((bios_2_scratch & ATOM_S2_CURRENT_BL_LEVEL_MASK) >> ATOM_S2_CURRENT_BL_LEVEL_SHIFT); return backlight_level; } static void radeon_atom_set_backlight_level_to_reg(struct radeon_device *rdev, u8 backlight_level) { u32 bios_2_scratch; if (rdev->family >= CHIP_R600) bios_2_scratch = RREG32(R600_BIOS_2_SCRATCH); else bios_2_scratch = RREG32(RADEON_BIOS_2_SCRATCH); bios_2_scratch &= ~ATOM_S2_CURRENT_BL_LEVEL_MASK; bios_2_scratch |= ((backlight_level << ATOM_S2_CURRENT_BL_LEVEL_SHIFT) & ATOM_S2_CURRENT_BL_LEVEL_MASK); if (rdev->family >= CHIP_R600) WREG32(R600_BIOS_2_SCRATCH, bios_2_scratch); else WREG32(RADEON_BIOS_2_SCRATCH, bios_2_scratch); } u8 atombios_get_backlight_level(struct radeon_encoder *radeon_encoder) { struct drm_device *dev = radeon_encoder->base.dev; struct radeon_device *rdev = dev->dev_private; if (!(rdev->mode_info.firmware_flags & ATOM_BIOS_INFO_BL_CONTROLLED_BY_GPU)) return 0; return radeon_atom_get_backlight_level_from_reg(rdev); } void atombios_set_backlight_level(struct radeon_encoder *radeon_encoder, u8 level) { struct drm_encoder *encoder = &radeon_encoder->base; struct drm_device *dev = radeon_encoder->base.dev; struct radeon_device *rdev = dev->dev_private; struct radeon_encoder_atom_dig *dig; DISPLAY_DEVICE_OUTPUT_CONTROL_PS_ALLOCATION args; int index; if (!(rdev->mode_info.firmware_flags & ATOM_BIOS_INFO_BL_CONTROLLED_BY_GPU)) return; if ((radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) && radeon_encoder->enc_priv) { dig = radeon_encoder->enc_priv; dig->backlight_level = level; radeon_atom_set_backlight_level_to_reg(rdev, dig->backlight_level); switch (radeon_encoder->encoder_id) { case ENCODER_OBJECT_ID_INTERNAL_LVDS: case ENCODER_OBJECT_ID_INTERNAL_LVTM1: index = GetIndexIntoMasterTable(COMMAND, LCD1OutputControl); if (dig->backlight_level == 0) { args.ucAction = ATOM_LCD_BLOFF; atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); } else { args.ucAction = ATOM_LCD_BL_BRIGHTNESS_CONTROL; atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); args.ucAction = ATOM_LCD_BLON; atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); } break; case ENCODER_OBJECT_ID_INTERNAL_UNIPHY: case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA: case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1: case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2: if (dig->backlight_level == 0) atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_LCD_BLOFF, 0, 0); else { atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_BL_BRIGHTNESS_CONTROL, 0, 0); atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_LCD_BLON, 0, 0); } break; default: break; } } } #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) || defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE) static u8 radeon_atom_bl_level(struct backlight_device *bd) { u8 level; /* Convert brightness to hardware level */ if (bd->props.brightness < 0) level = 0; else if (bd->props.brightness > RADEON_MAX_BL_LEVEL) level = RADEON_MAX_BL_LEVEL; else level = bd->props.brightness; return level; } static int radeon_atom_backlight_update_status(struct backlight_device *bd) { struct radeon_backlight_privdata *pdata = bl_get_data(bd); struct radeon_encoder *radeon_encoder = pdata->encoder; atombios_set_backlight_level(radeon_encoder, radeon_atom_bl_level(bd)); return 0; } static int radeon_atom_backlight_get_brightness(struct backlight_device *bd) { struct radeon_backlight_privdata *pdata = bl_get_data(bd); struct radeon_encoder *radeon_encoder = pdata->encoder; struct drm_device *dev = radeon_encoder->base.dev; struct radeon_device *rdev = dev->dev_private; return radeon_atom_get_backlight_level_from_reg(rdev); } static const struct backlight_ops radeon_atom_backlight_ops = { .get_brightness = radeon_atom_backlight_get_brightness, .update_status = radeon_atom_backlight_update_status, }; void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder, struct drm_connector *drm_connector) { struct drm_device *dev = radeon_encoder->base.dev; struct radeon_device *rdev = dev->dev_private; struct backlight_device *bd; struct backlight_properties props; struct radeon_backlight_privdata *pdata; struct radeon_encoder_atom_dig *dig; u8 backlight_level; char bl_name[16]; /* Mac laptops with multiple GPUs use the gmux driver for backlight * so don't register a backlight device */ if ((rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) && (rdev->pdev->device == 0x6741)) return; if (!radeon_encoder->enc_priv) return; if (!rdev->is_atom_bios) return; if (!(rdev->mode_info.firmware_flags & ATOM_BIOS_INFO_BL_CONTROLLED_BY_GPU)) return; pdata = kmalloc(sizeof(struct radeon_backlight_privdata), GFP_KERNEL); if (!pdata) { DRM_ERROR("Memory allocation failed\n"); goto error; } memset(&props, 0, sizeof(props)); props.max_brightness = RADEON_MAX_BL_LEVEL; props.type = BACKLIGHT_RAW; snprintf(bl_name, sizeof(bl_name), "radeon_bl%d", dev->primary->index); bd = backlight_device_register(bl_name, drm_connector->kdev, pdata, &radeon_atom_backlight_ops, &props); if (IS_ERR(bd)) { DRM_ERROR("Backlight registration failed\n"); goto error; } pdata->encoder = radeon_encoder; backlight_level = radeon_atom_get_backlight_level_from_reg(rdev); dig = radeon_encoder->enc_priv; dig->bl_dev = bd; bd->props.brightness = radeon_atom_backlight_get_brightness(bd); bd->props.power = FB_BLANK_UNBLANK; backlight_update_status(bd); DRM_INFO("radeon atom DIG backlight initialized\n"); return; error: kfree(pdata); return; } static void radeon_atom_backlight_exit(struct radeon_encoder *radeon_encoder) { struct drm_device *dev = radeon_encoder->base.dev; struct radeon_device *rdev = dev->dev_private; struct backlight_device *bd = NULL; struct radeon_encoder_atom_dig *dig; if (!radeon_encoder->enc_priv) return; if (!rdev->is_atom_bios) return; if (!(rdev->mode_info.firmware_flags & ATOM_BIOS_INFO_BL_CONTROLLED_BY_GPU)) return; dig = radeon_encoder->enc_priv; bd = dig->bl_dev; dig->bl_dev = NULL; if (bd) { struct radeon_legacy_backlight_privdata *pdata; pdata = bl_get_data(bd); backlight_device_unregister(bd); kfree(pdata); DRM_INFO("radeon atom LVDS backlight unloaded\n"); } } #else /* !CONFIG_BACKLIGHT_CLASS_DEVICE */ void radeon_atom_backlight_init(struct radeon_encoder *encoder) { } static void radeon_atom_backlight_exit(struct radeon_encoder *encoder) { } #endif /* evil but including atombios.h is much worse */ bool radeon_atom_get_tv_timings(struct radeon_device *rdev, int index, struct drm_display_mode *mode); static inline bool radeon_encoder_is_digital(struct drm_encoder *encoder) { struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); switch (radeon_encoder->encoder_id) { case ENCODER_OBJECT_ID_INTERNAL_LVDS: case ENCODER_OBJECT_ID_INTERNAL_TMDS1: case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1: case ENCODER_OBJECT_ID_INTERNAL_LVTM1: case ENCODER_OBJECT_ID_INTERNAL_DVO1: case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1: case ENCODER_OBJECT_ID_INTERNAL_DDI: case ENCODER_OBJECT_ID_INTERNAL_UNIPHY: case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA: case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1: case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2: case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3: return true; default: return false;