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drm/radeon/kms: add initial radeon tv-out support.

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This ports the tv-out code from the DDX to KMS.

adds a radeon.tv module option, radeon.tv=0 to disable tv

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2009-08-13 16:32:14 +10:00
parent 551ebd837c
commit 4ce001abaf
15 changed files with 1943 additions and 390 deletions
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44
drivers/gpu/drm/radeon/radeon_legacy_crtc.c
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@@ -28,6 +28,7 @@
#include <drm/radeon_drm.h>
#include "radeon_fixed.h"
#include "radeon.h"
#include "atom.h"
static void radeon_legacy_rmx_mode_set(struct drm_crtc *crtc,
struct drm_display_mode *mode,
@@ -501,6 +502,7 @@ static bool radeon_set_crtc_timing(struct drm_crtc *crtc, struct drm_display_mod
struct drm_device *dev = crtc->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
struct drm_encoder *encoder;
int format;
int hsync_start;
int hsync_wid;
@@ -509,8 +511,19 @@ static bool radeon_set_crtc_timing(struct drm_crtc *crtc, struct drm_display_mod
uint32_t crtc_h_sync_strt_wid;
uint32_t crtc_v_total_disp;
uint32_t crtc_v_sync_strt_wid;
bool is_tv = false;
DRM_DEBUG("\n");
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
if (encoder->crtc == crtc) {
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
if (radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT) {
is_tv = true;
DRM_INFO("crtc %d is connected to a TV\n", radeon_crtc->crtc_id);
break;
}
}
}
switch (crtc->fb->bits_per_pixel) {
case 15: /* 555 */
@@ -642,6 +655,11 @@ static bool radeon_set_crtc_timing(struct drm_crtc *crtc, struct drm_display_mod
WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl);
}
if (is_tv)
radeon_legacy_tv_adjust_crtc_reg(encoder, &crtc_h_total_disp,
&crtc_h_sync_strt_wid, &crtc_v_total_disp,
&crtc_v_sync_strt_wid);
WREG32(RADEON_CRTC_H_TOTAL_DISP + radeon_crtc->crtc_offset, crtc_h_total_disp);
WREG32(RADEON_CRTC_H_SYNC_STRT_WID + radeon_crtc->crtc_offset, crtc_h_sync_strt_wid);
WREG32(RADEON_CRTC_V_TOTAL_DISP + radeon_crtc->crtc_offset, crtc_v_total_disp);
@@ -668,7 +686,7 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
uint32_t pll_ref_div = 0;
uint32_t pll_fb_post_div = 0;
uint32_t htotal_cntl = 0;
bool is_tv = false;
struct radeon_pll *pll;
struct {
@@ -703,6 +721,13 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
if (encoder->crtc == crtc) {
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
if (radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT) {
is_tv = true;
break;
}
if (encoder->encoder_type != DRM_MODE_ENCODER_DAC)
pll_flags |= RADEON_PLL_NO_ODD_POST_DIV;
if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS) {
@@ -766,6 +791,12 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
~(RADEON_PIX2CLK_SRC_SEL_MASK)) |
RADEON_PIX2CLK_SRC_SEL_P2PLLCLK);
if (is_tv) {
radeon_legacy_tv_adjust_pll2(encoder, &htotal_cntl,
&pll_ref_div, &pll_fb_post_div,
&pixclks_cntl);
}
WREG32_PLL_P(RADEON_PIXCLKS_CNTL,
RADEON_PIX2CLK_SRC_SEL_CPUCLK,
~(RADEON_PIX2CLK_SRC_SEL_MASK));
@@ -820,6 +851,15 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl);
} else {
uint32_t pixclks_cntl;
if (is_tv) {
pixclks_cntl = RREG32_PLL(RADEON_PIXCLKS_CNTL);
radeon_legacy_tv_adjust_pll1(encoder, &htotal_cntl, &pll_ref_div,
&pll_fb_post_div, &pixclks_cntl);
}
if (rdev->flags & RADEON_IS_MOBILITY) {
/* A temporal workaround for the occational blanking on certain laptop panels.
This appears to related to the PLL divider registers (fail to lock?).
@@ -914,6 +954,8 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
RADEON_VCLK_SRC_SEL_PPLLCLK,
~(RADEON_VCLK_SRC_SEL_MASK));
if (is_tv)
WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl);
}
}