>From 1658a5093ee03b951738ac376a3fafb5707d279b Mon Sep 17 00:00:00 2001
From: Christian Koenig <deathsimple@vodafone.de>
Date: Sat, 10 Apr 2010 03:13:16 +0200
Subject: [PATCH 2/2] drm/radeon/kms: HDMI irq support
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Implements irq support for HDMI audio output. Now the polling timer
is only enabled if irq support isn't available.
Signed-off-by: Christian König <deathsimple@vodafone.de>
---
drivers/gpu/drm/radeon/r600.c | 33 ++++++++++++++++++++
drivers/gpu/drm/radeon/r600_audio.c | 21 ++++++++-----
drivers/gpu/drm/radeon/r600_hdmi.c | 53 +++++++++++++++++++-------------
drivers/gpu/drm/radeon/r600_reg.h | 57 ++++++++++++++++++----------------
drivers/gpu/drm/radeon/radeon.h | 3 ++
5 files changed, 111 insertions(+), 56 deletions(-)
@@ -2500,6 +2500,7 @@ int r600_irq_set(struct radeon_device *rdev)
u32 cp_int_cntl = CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE;
u32 mode_int = 0;
u32 hpd1, hpd2, hpd3, hpd4 = 0, hpd5 = 0, hpd6 = 0;
+ u32 hdmi1, hdmi2;
if (!rdev->irq.installed) {
WARN(1, "Can't enable IRQ/MSI because no handler is installed.\n");
@@ -2513,7 +2514,9 @@ int r600_irq_set(struct radeon_device *rdev)
return 0;
}
+ hdmi1 = RREG32(R600_HDMI_BLOCK1 + R600_HDMI_CNTL) & ~R600_HDMI_INT_EN;
if (ASIC_IS_DCE3(rdev)) {
+ hdmi2 = RREG32(R600_HDMI_BLOCK3 + R600_HDMI_CNTL) & ~R600_HDMI_INT_EN;
hpd1 = RREG32(DC_HPD1_INT_CONTROL) & ~DC_HPDx_INT_EN;
hpd2 = RREG32(DC_HPD2_INT_CONTROL) & ~DC_HPDx_INT_EN;
hpd3 = RREG32(DC_HPD3_INT_CONTROL) & ~DC_HPDx_INT_EN;
@@ -2523,6 +2526,7 @@ int r600_irq_set(struct radeon_device *rdev)
hpd6 = RREG32(DC_HPD6_INT_CONTROL) & ~DC_HPDx_INT_EN;
}
} else {
+ hdmi2 = RREG32(R600_HDMI_BLOCK2 + R600_HDMI_CNTL) & ~R600_HDMI_INT_EN;
hpd1 = RREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL) & ~DC_HPDx_INT_EN;
hpd2 = RREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL) & ~DC_HPDx_INT_EN;
hpd3 = RREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL) & ~DC_HPDx_INT_EN;
@@ -2564,10 +2568,20 @@ int r600_irq_set(struct radeon_device *rdev)
DRM_DEBUG("r600_irq_set: hpd 6\n");
hpd6 |= DC_HPDx_INT_EN;
}
+ if (rdev->irq.hdmi[0]) {
+ DRM_DEBUG("r600_irq_set: hdmi 1\n");
+ hdmi1 |= R600_HDMI_INT_EN;
+ }
+ if (rdev->irq.hdmi[1]) {
+ DRM_DEBUG("r600_irq_set: hdmi 2\n");
+ hdmi2 |= R600_HDMI_INT_EN;
+ }
WREG32(CP_INT_CNTL, cp_int_cntl);
WREG32(DxMODE_INT_MASK, mode_int);
+ WREG32(R600_HDMI_BLOCK1 + R600_HDMI_CNTL, hdmi1);
if (ASIC_IS_DCE3(rdev)) {
+ WREG32(R600_HDMI_BLOCK3 + R600_HDMI_CNTL, hdmi2);
WREG32(DC_HPD1_INT_CONTROL, hpd1);
WREG32(DC_HPD2_INT_CONTROL, hpd2);
WREG32(DC_HPD3_INT_CONTROL, hpd3);
@@ -2577,6 +2591,7 @@ int r600_irq_set(struct radeon_device *rdev)
WREG32(DC_HPD6_INT_CONTROL, hpd6);
}
} else {
+ WREG32(R600_HDMI_BLOCK2 + R600_HDMI_CNTL, hdmi2);
WREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL, hpd1);
WREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL, hpd2);
WREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL, hpd3);
@@ -2660,6 +2675,18 @@ static inline void r600_irq_ack(struct radeon_device *rdev,
WREG32(DC_HPD6_INT_CONTROL, tmp);
}
}
+ if (RREG32(R600_HDMI_BLOCK1 + R600_HDMI_STATUS) & R600_HDMI_INT_PENDING) {
+ WREG32_P(R600_HDMI_BLOCK1 + R600_HDMI_CNTL, R600_HDMI_INT_ACK, ~R600_HDMI_INT_ACK);
+ }
+ if (ASIC_IS_DCE3(rdev)) {
+ if (RREG32(R600_HDMI_BLOCK3 + R600_HDMI_STATUS) & R600_HDMI_INT_PENDING) {
+ WREG32_P(R600_HDMI_BLOCK3 + R600_HDMI_CNTL, R600_HDMI_INT_ACK, ~R600_HDMI_INT_ACK);
+ }
+ } else {
+ if (RREG32(R600_HDMI_BLOCK2 + R600_HDMI_STATUS) & R600_HDMI_INT_PENDING) {
+ WREG32_P(R600_HDMI_BLOCK2 + R600_HDMI_CNTL, R600_HDMI_INT_ACK, ~R600_HDMI_INT_ACK);
+ }
+ }
}
void r600_irq_disable(struct radeon_device *rdev)
@@ -2713,6 +2740,8 @@ static inline u32 r600_get_ih_wptr(struct radeon_device *rdev)
* 19 1 FP Hot plug detection B
* 19 2 DAC A auto-detection
* 19 3 DAC B auto-detection
+ * 21 4 HDMI block A
+ * 21 5 HDMI block B
* 176 - CP_INT RB
* 177 - CP_INT IB1
* 178 - CP_INT IB2
@@ -2852,6 +2881,10 @@ restart_ih:
break;
}
break;
+ case 21: /* HDMI */
+ DRM_DEBUG("IH: HDMI: 0x%x\n", src_data);
+ r600_audio_schedule_polling(rdev);
+ break;
case 176: /* CP_INT in ring buffer */
case 177: /* CP_INT in IB1 */
case 178: /* CP_INT in IB2 */
@@ -104,6 +104,15 @@ uint8_t r600_audio_category_code(struct radeon_device *rdev)
}
/*
+ * schedule next audio update event
+ */
+void r600_audio_schedule_polling(struct radeon_device *rdev)
+{
+ mod_timer(&rdev->audio_timer,
+ jiffies + msecs_to_jiffies(AUDIO_TIMER_INTERVALL));
+}
+
+/*
* update all hdmi interfaces with current audio parameters
*/
static void r600_audio_update_hdmi(unsigned long param)
@@ -136,16 +145,12 @@ static void r600_audio_update_hdmi(unsigned long param)
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
- if (radeon_encoder->audio_polling_active) {
- still_going = 1;
- if (changes || r600_hdmi_buffer_status_changed(encoder))
- r600_hdmi_update_audio_settings(encoder);
- }
+ still_going |= radeon_encoder->audio_polling_active;
+ if (changes || r600_hdmi_buffer_status_changed(encoder))
+ r600_hdmi_update_audio_settings(encoder);
}
- if(still_going)
- mod_timer(&rdev->audio_timer,
- jiffies + msecs_to_jiffies(AUDIO_TIMER_INTERVALL));
+ if(still_going) r600_audio_schedule_polling(rdev);
}
/*
@@ -290,17 +290,15 @@ void r600_hdmi_audio_workaround(struct drm_encoder *encoder)
if (!offset)
return;
- if (r600_hdmi_is_audio_buffer_filled(encoder)) {
- /* disable audio workaround and start delivering of audio frames */
- WREG32_P(offset+R600_HDMI_CNTL, 0x00000001, ~0x00001001);
+ if (!radeon_encoder->hdmi_audio_workaround ||
+ r600_hdmi_is_audio_buffer_filled(encoder)) {
- } else if (radeon_encoder->hdmi_audio_workaround) {
- /* enable audio workaround and start delivering of audio frames */
- WREG32_P(offset+R600_HDMI_CNTL, 0x00001001, ~0x00001001);
+ /* disable audio workaround */
+ WREG32_P(offset+R600_HDMI_CNTL, 0x00000001, ~0x00001001);
} else {
- /* disable audio workaround and stop delivering of audio frames */
- WREG32_P(offset+R600_HDMI_CNTL, 0x00000000, ~0x00001001);
+ /* enable audio workaround */
+ WREG32_P(offset+R600_HDMI_CNTL, 0x00001001, ~0x00001001);
}
}
@@ -342,9 +340,6 @@ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mod
/* audio packets per line, does anyone know how to calc this ? */
WREG32_P(offset+R600_HDMI_CNTL, 0x00040000, ~0x001F0000);
-
- /* update? reset? don't realy know */
- WREG32_P(offset+R600_HDMI_CNTL, 0x14000000, ~0x14000000);
}
/*
@@ -413,9 +408,6 @@ void r600_hdmi_update_audio_settings(struct drm_encoder *encoder)
r600_hdmi_audioinfoframe(encoder, channels-1, 0, 0, 0, 0, 0, 0, 0);
r600_hdmi_audio_workaround(encoder);
-
- /* update? reset? don't realy know */
- WREG32_P(offset+R600_HDMI_CNTL, 0x04000000, ~0x04000000);
}
static int r600_hdmi_find_free_block(struct drm_device *dev)
@@ -484,6 +476,7 @@ void r600_hdmi_enable(struct drm_encoder *encoder)
struct drm_device *dev = encoder->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ uint32_t offset;
if (!radeon_encoder->hdmi_offset) {
r600_hdmi_assign_block(encoder);
@@ -494,10 +487,10 @@ void r600_hdmi_enable(struct drm_encoder *encoder)
}
}
+ offset = radeon_encoder->hdmi_offset;
if (ASIC_IS_DCE32(rdev) && !ASIC_IS_DCE4(rdev)) {
WREG32_P(radeon_encoder->hdmi_config_offset + 0x4, 0x1, ~0x1);
} else if (rdev->family >= CHIP_R600 && !ASIC_IS_DCE3(rdev)) {
- int offset = radeon_encoder->hdmi_offset;
switch (radeon_encoder->encoder_id) {
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
WREG32_P(AVIVO_TMDSA_CNTL, 0x4, ~0x4);
@@ -513,7 +506,20 @@ void r600_hdmi_enable(struct drm_encoder *encoder)
}
}
- r600_audio_enable_polling(encoder);
+ if (rdev->irq.installed
+ && rdev->family != CHIP_RS600
+ && rdev->family != CHIP_RS690
+ && rdev->family != CHIP_RS740) {
+
+ /* if irq is available use it */
+ rdev->irq.hdmi[offset == R600_HDMI_BLOCK1 ? 0 : 1] = true;
+ radeon_irq_set(rdev);
+
+ r600_audio_disable_polling(encoder);
+ } else {
+ /* if not fallback to polling */
+ r600_audio_enable_polling(encoder);
+ }
DRM_DEBUG("Enabling HDMI interface @ 0x%04X for encoder 0x%x\n",
radeon_encoder->hdmi_offset, radeon_encoder->encoder_id);
@@ -527,21 +533,26 @@ void r600_hdmi_disable(struct drm_encoder *encoder)
struct drm_device *dev = encoder->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ uint8_t offset = radeon_encoder->hdmi_offset;
- if (!radeon_encoder->hdmi_offset) {
+ if (!offset) {
dev_err(rdev->dev, "Disabling not enabled HDMI\n");
return;
}
- r600_audio_disable_polling(encoder);
-
DRM_DEBUG("Disabling HDMI interface @ 0x%04X for encoder 0x%x\n",
- radeon_encoder->hdmi_offset, radeon_encoder->encoder_id);
+ offset, radeon_encoder->encoder_id);
+
+ /* disable irq */
+ rdev->irq.hdmi[offset == R600_HDMI_BLOCK1 ? 0 : 1] = false;
+ radeon_irq_set(rdev);
+
+ /* disable polling */
+ r600_audio_disable_polling(encoder);
if (ASIC_IS_DCE32(rdev) && !ASIC_IS_DCE4(rdev)) {
WREG32_P(radeon_encoder->hdmi_config_offset + 0x4, 0, ~0x1);
} else if (rdev->family >= CHIP_R600 && !ASIC_IS_DCE3(rdev)) {
- int offset = radeon_encoder->hdmi_offset;
switch (radeon_encoder->encoder_id) {
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
WREG32_P(AVIVO_TMDSA_CNTL, 0, ~0x4);
@@ -157,33 +157,36 @@
#define R600_HDMI_BLOCK3 0x7800
/* HDMI registers */
-#define R600_HDMI_ENABLE 0x00
-#define R600_HDMI_STATUS 0x04
-#define R600_HDMI_CNTL 0x08
-#define R600_HDMI_UNKNOWN_0 0x0C
-#define R600_HDMI_AUDIOCNTL 0x10
-#define R600_HDMI_VIDEOCNTL 0x14
-#define R600_HDMI_VERSION 0x18
-#define R600_HDMI_UNKNOWN_1 0x28
-#define R600_HDMI_VIDEOINFOFRAME_0 0x54
-#define R600_HDMI_VIDEOINFOFRAME_1 0x58
-#define R600_HDMI_VIDEOINFOFRAME_2 0x5c
-#define R600_HDMI_VIDEOINFOFRAME_3 0x60
-#define R600_HDMI_32kHz_CTS 0xac
-#define R600_HDMI_32kHz_N 0xb0
-#define R600_HDMI_44_1kHz_CTS 0xb4
-#define R600_HDMI_44_1kHz_N 0xb8
-#define R600_HDMI_48kHz_CTS 0xbc
-#define R600_HDMI_48kHz_N 0xc0
-#define R600_HDMI_AUDIOINFOFRAME_0 0xcc
-#define R600_HDMI_AUDIOINFOFRAME_1 0xd0
-#define R600_HDMI_IEC60958_1 0xd4
-#define R600_HDMI_IEC60958_2 0xd8
-#define R600_HDMI_UNKNOWN_2 0xdc
-#define R600_HDMI_AUDIO_DEBUG_0 0xe0
-#define R600_HDMI_AUDIO_DEBUG_1 0xe4
-#define R600_HDMI_AUDIO_DEBUG_2 0xe8
-#define R600_HDMI_AUDIO_DEBUG_3 0xec
+#define R600_HDMI_ENABLE 0x00
+#define R600_HDMI_STATUS 0x04
+# define R600_HDMI_INT_PENDING (1 << 29)
+#define R600_HDMI_CNTL 0x08
+# define R600_HDMI_INT_EN (1 << 28)
+# define R600_HDMI_INT_ACK (1 << 29)
+#define R600_HDMI_UNKNOWN_0 0x0C
+#define R600_HDMI_AUDIOCNTL 0x10
+#define R600_HDMI_VIDEOCNTL 0x14
+#define R600_HDMI_VERSION 0x18
+#define R600_HDMI_UNKNOWN_1 0x28
+#define R600_HDMI_VIDEOINFOFRAME_0 0x54
+#define R600_HDMI_VIDEOINFOFRAME_1 0x58
+#define R600_HDMI_VIDEOINFOFRAME_2 0x5c
+#define R600_HDMI_VIDEOINFOFRAME_3 0x60
+#define R600_HDMI_32kHz_CTS 0xac
+#define R600_HDMI_32kHz_N 0xb0
+#define R600_HDMI_44_1kHz_CTS 0xb4
+#define R600_HDMI_44_1kHz_N 0xb8
+#define R600_HDMI_48kHz_CTS 0xbc
+#define R600_HDMI_48kHz_N 0xc0
+#define R600_HDMI_AUDIOINFOFRAME_0 0xcc
+#define R600_HDMI_AUDIOINFOFRAME_1 0xd0
+#define R600_HDMI_IEC60958_1 0xd4
+#define R600_HDMI_IEC60958_2 0xd8
+#define R600_HDMI_UNKNOWN_2 0xdc
+#define R600_HDMI_AUDIO_DEBUG_0 0xe0
+#define R600_HDMI_AUDIO_DEBUG_1 0xe4
+#define R600_HDMI_AUDIO_DEBUG_2 0xe8
+#define R600_HDMI_AUDIO_DEBUG_3 0xec
/* HDMI additional config base register addresses */
#define R600_HDMI_CONFIG1 0x7600
@@ -375,6 +375,8 @@ struct radeon_irq {
wait_queue_head_t vblank_queue;
/* FIXME: use defines for max hpd/dacs */
bool hpd[6];
+ /* FIXME: use defines for max HDMI blocks */
+ bool hdmi[2];
spinlock_t sw_lock;
int sw_refcount;
};
@@ -1292,6 +1294,7 @@ extern int r600_audio_bits_per_sample(struct radeon_device *rdev);
extern int r600_audio_rate(struct radeon_device *rdev);
extern uint8_t r600_audio_status_bits(struct radeon_device *rdev);
extern uint8_t r600_audio_category_code(struct radeon_device *rdev);
+extern void r600_audio_schedule_polling(struct radeon_device *rdev);
extern void r600_audio_enable_polling(struct drm_encoder *encoder);
extern void r600_audio_disable_polling(struct drm_encoder *encoder);
extern void r600_audio_fini(struct radeon_device *rdev);
--
1.7.0