diff options
Diffstat (limited to 'linux-core/intel_display.c')
| -rw-r--r-- | linux-core/intel_display.c | 114 |
1 files changed, 110 insertions, 4 deletions
diff --git a/linux-core/intel_display.c b/linux-core/intel_display.c index 58d66987..90c894ee 100644 --- a/linux-core/intel_display.c +++ b/linux-core/intel_display.c @@ -26,8 +26,6 @@ #include <linux/i2c.h> #include "drmP.h" -#include "drm.h" -#include "drm_crtc.h" #include "intel_drv.h" #include "i915_drm.h" #include "i915_drv.h" @@ -973,10 +971,115 @@ static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, intel_crtc_load_lut(crtc); } +/* Returns the clock of the currently programmed mode of the given pipe. */ +static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + struct intel_crtc *intel_crtc = crtc->driver_private; + int pipe = intel_crtc->pipe; + u32 dpll = I915_READ((pipe == 0) ? DPLL_A : DPLL_B); + u32 fp; + intel_clock_t clock; + + if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) + fp = I915_READ((pipe == 0) ? FPA0 : FPB0); + else + fp = I915_READ((pipe == 0) ? FPA1 : FPB1); + + clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; + clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; + clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; + if (IS_I9XX(dev)) { + clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> + DPLL_FPA01_P1_POST_DIV_SHIFT); + + switch (dpll & DPLL_MODE_MASK) { + case DPLLB_MODE_DAC_SERIAL: + clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? + 5 : 10; + break; + case DPLLB_MODE_LVDS: + clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? + 7 : 14; + break; + default: + DRM_DEBUG("Unknown DPLL mode %08x in programmed " + "mode\n", (int)(dpll & DPLL_MODE_MASK)); + return 0; + } + + /* XXX: Handle the 100Mhz refclk */ + i9xx_clock(96000, &clock); + } else { + bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); + + if (is_lvds) { + clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> + DPLL_FPA01_P1_POST_DIV_SHIFT); + clock.p2 = 14; + + if ((dpll & PLL_REF_INPUT_MASK) == + PLLB_REF_INPUT_SPREADSPECTRUMIN) { + /* XXX: might not be 66MHz */ + i8xx_clock(66000, &clock); + } else + i8xx_clock(48000, &clock); + } else { + if (dpll & PLL_P1_DIVIDE_BY_TWO) + clock.p1 = 2; + else { + clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> + DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; + } + if (dpll & PLL_P2_DIVIDE_BY_4) + clock.p2 = 4; + else + clock.p2 = 2; + + i8xx_clock(48000, &clock); + } + } + + /* XXX: It would be nice to validate the clocks, but we can't reuse + * i830PllIsValid() because it relies on the xf86_config output + * configuration being accurate, which it isn't necessarily. + */ + + return clock.dot; +} + +/** Returns the currently programmed mode of the given pipe. */ struct drm_display_mode *intel_crtc_mode_get(drm_device_t *dev, struct drm_crtc *crtc) { - return NULL; + drm_i915_private_t *dev_priv = dev->dev_private; + struct intel_crtc *intel_crtc = crtc->driver_private; + int pipe = intel_crtc->pipe; + struct drm_display_mode *mode; + int htot = I915_READ((pipe == 0) ? HTOTAL_A : HTOTAL_B); + int hsync = I915_READ((pipe == 0) ? HSYNC_A : HSYNC_B); + int vtot = I915_READ((pipe == 0) ? VTOTAL_A : VTOTAL_B); + int vsync = I915_READ((pipe == 0) ? VSYNC_A : VSYNC_B); + + mode = kzalloc(sizeof(*mode), GFP_KERNEL); + if (!mode) + return NULL; + + mode->clock = intel_crtc_clock_get(dev, crtc); + mode->hdisplay = (htot & 0xffff) + 1; + mode->htotal = ((htot & 0xffff0000) >> 16) + 1; + mode->hsync_start = (hsync & 0xffff) + 1; + mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1; + mode->vdisplay = (vtot & 0xffff) + 1; + mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1; + mode->vsync_start = (vsync & 0xffff) + 1; + mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1; + /* FIXME: pull name generation into a common routine */ + snprintf(mode->name, DRM_DISPLAY_MODE_LEN, "%dx%d", mode->hdisplay, + mode->vdisplay); + drm_mode_set_crtcinfo(mode, 0); + + return mode; } static const struct drm_crtc_funcs intel_crtc_funcs = { @@ -1017,7 +1120,7 @@ void intel_crtc_init(drm_device_t *dev, int pipe) crtc->driver_private = intel_crtc; } -int intel_output_clones (drm_device_t *dev, int type_mask) +int intel_output_clones(drm_device_t *dev, int type_mask) { int index_mask = 0; struct drm_output *output; @@ -1039,9 +1142,11 @@ static void intel_setup_outputs(drm_device_t *dev) intel_crt_init(dev); +#if 0 /* Set up integrated LVDS */ if (IS_MOBILE(dev) && !IS_I830(dev)) intel_lvds_init(dev); +#endif if (IS_I9XX(dev)) { intel_sdvo_init(dev, SDVOB); @@ -1105,6 +1210,7 @@ void intel_modeset_init(drm_device_t *dev) intel_setup_outputs(dev); drm_initial_config(dev, false); + drm_set_desired_modes(dev); } void intel_modeset_cleanup(drm_device_t *dev) |