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path: root/drivers/gpu/drm/nouveau/nv17_tv.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nv17_tv.c')
-rw-r--r--drivers/gpu/drm/nouveau/nv17_tv.c115
1 files changed, 105 insertions, 10 deletions
diff --git a/drivers/gpu/drm/nouveau/nv17_tv.c b/drivers/gpu/drm/nouveau/nv17_tv.c
index 81c01353a9f9..58b917c3341b 100644
--- a/drivers/gpu/drm/nouveau/nv17_tv.c
+++ b/drivers/gpu/drm/nouveau/nv17_tv.c
@@ -33,13 +33,103 @@
33#include "nouveau_hw.h" 33#include "nouveau_hw.h"
34#include "nv17_tv.h" 34#include "nv17_tv.h"
35 35
36enum drm_connector_status nv17_tv_detect(struct drm_encoder *encoder, 36static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder)
37 struct drm_connector *connector,
38 uint32_t pin_mask)
39{ 37{
38 struct drm_device *dev = encoder->dev;
39 struct drm_nouveau_private *dev_priv = dev->dev_private;
40 uint32_t testval, regoffset = nv04_dac_output_offset(encoder);
41 uint32_t gpio0, gpio1, fp_htotal, fp_hsync_start, fp_hsync_end,
42 fp_control, test_ctrl, dacclk, ctv_14, ctv_1c, ctv_6c;
43 uint32_t sample = 0;
44 int head;
45
46#define RGB_TEST_DATA(r, g, b) (r << 0 | g << 10 | b << 20)
47 testval = RGB_TEST_DATA(0x82, 0xeb, 0x82);
48 if (dev_priv->vbios->tvdactestval)
49 testval = dev_priv->vbios->tvdactestval;
50
51 dacclk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset);
52 head = (dacclk & 0x100) >> 8;
53
54 /* Save the previous state. */
55 gpio1 = nv17_gpio_get(dev, DCB_GPIO_TVDAC1);
56 gpio0 = nv17_gpio_get(dev, DCB_GPIO_TVDAC0);
57 fp_htotal = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL);
58 fp_hsync_start = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START);
59 fp_hsync_end = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_END);
60 fp_control = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_TG_CONTROL);
61 test_ctrl = NVReadRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset);
62 ctv_1c = NVReadRAMDAC(dev, head, 0x680c1c);
63 ctv_14 = NVReadRAMDAC(dev, head, 0x680c14);
64 ctv_6c = NVReadRAMDAC(dev, head, 0x680c6c);
65
66 /* Prepare the DAC for load detection. */
67 nv17_gpio_set(dev, DCB_GPIO_TVDAC1, true);
68 nv17_gpio_set(dev, DCB_GPIO_TVDAC0, true);
69
70 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL, 1343);
71 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START, 1047);
72 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_END, 1183);
73 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_TG_CONTROL,
74 NV_PRAMDAC_FP_TG_CONTROL_DISPEN_POS |
75 NV_PRAMDAC_FP_TG_CONTROL_WIDTH_12 |
76 NV_PRAMDAC_FP_TG_CONTROL_READ_PROG |
77 NV_PRAMDAC_FP_TG_CONTROL_HSYNC_POS |
78 NV_PRAMDAC_FP_TG_CONTROL_VSYNC_POS);
79
80 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset, 0);
81
82 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset,
83 (dacclk & ~0xff) | 0x22);
84 msleep(1);
85 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset,
86 (dacclk & ~0xff) | 0x21);
87
88 NVWriteRAMDAC(dev, head, 0x680c1c, 1 << 20);
89 NVWriteRAMDAC(dev, head, 0x680c14, 4 << 16);
90
91 /* Sample pin 0x4 (usually S-video luma). */
92 NVWriteRAMDAC(dev, head, 0x680c6c, testval >> 10 & 0x3ff);
93 msleep(20);
94 sample |= NVReadRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset)
95 & 0x4 << 28;
96
97 /* Sample the remaining pins. */
98 NVWriteRAMDAC(dev, head, 0x680c6c, testval & 0x3ff);
99 msleep(20);
100 sample |= NVReadRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset)
101 & 0xa << 28;
102
103 /* Restore the previous state. */
104 NVWriteRAMDAC(dev, head, 0x680c1c, ctv_1c);
105 NVWriteRAMDAC(dev, head, 0x680c14, ctv_14);
106 NVWriteRAMDAC(dev, head, 0x680c6c, ctv_6c);
107 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset, dacclk);
108 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset, test_ctrl);
109 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_TG_CONTROL, fp_control);
110 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_END, fp_hsync_end);
111 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START, fp_hsync_start);
112 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL, fp_htotal);
113 nv17_gpio_set(dev, DCB_GPIO_TVDAC1, gpio1);
114 nv17_gpio_set(dev, DCB_GPIO_TVDAC0, gpio0);
115
116 return sample;
117}
118
119static enum drm_connector_status
120nv17_tv_detect(struct drm_encoder *encoder, struct drm_connector *connector)
121{
122 struct drm_device *dev = encoder->dev;
123 struct drm_nouveau_private *dev_priv = dev->dev_private;
124 struct drm_mode_config *conf = &dev->mode_config;
40 struct nv17_tv_encoder *tv_enc = to_tv_enc(encoder); 125 struct nv17_tv_encoder *tv_enc = to_tv_enc(encoder);
126 struct dcb_entry *dcb = tv_enc->base.dcb;
41 127
42 tv_enc->pin_mask = pin_mask >> 28 & 0xe; 128 if (dev_priv->chipset == 0x42 ||
129 dev_priv->chipset == 0x43)
130 tv_enc->pin_mask = nv42_tv_sample_load(encoder) >> 28 & 0xe;
131 else
132 tv_enc->pin_mask = nv17_dac_sample_load(encoder) >> 28 & 0xe;
43 133
44 switch (tv_enc->pin_mask) { 134 switch (tv_enc->pin_mask) {
45 case 0x2: 135 case 0x2:
@@ -50,7 +140,7 @@ enum drm_connector_status nv17_tv_detect(struct drm_encoder *encoder,
50 tv_enc->subconnector = DRM_MODE_SUBCONNECTOR_SVIDEO; 140 tv_enc->subconnector = DRM_MODE_SUBCONNECTOR_SVIDEO;
51 break; 141 break;
52 case 0xe: 142 case 0xe:
53 if (nouveau_encoder(encoder)->dcb->tvconf.has_component_output) 143 if (dcb->tvconf.has_component_output)
54 tv_enc->subconnector = DRM_MODE_SUBCONNECTOR_Component; 144 tv_enc->subconnector = DRM_MODE_SUBCONNECTOR_Component;
55 else 145 else
56 tv_enc->subconnector = DRM_MODE_SUBCONNECTOR_SCART; 146 tv_enc->subconnector = DRM_MODE_SUBCONNECTOR_SCART;
@@ -61,11 +151,16 @@ enum drm_connector_status nv17_tv_detect(struct drm_encoder *encoder,
61 } 151 }
62 152
63 drm_connector_property_set_value(connector, 153 drm_connector_property_set_value(connector,
64 encoder->dev->mode_config.tv_subconnector_property, 154 conf->tv_subconnector_property,
65 tv_enc->subconnector); 155 tv_enc->subconnector);
66 156
67 return tv_enc->subconnector ? connector_status_connected : 157 if (tv_enc->subconnector) {
68 connector_status_disconnected; 158 NV_INFO(dev, "Load detected on output %c\n",
159 '@' + ffs(dcb->or));
160 return connector_status_connected;
161 } else {
162 return connector_status_disconnected;
163 }
69} 164}
70 165
71static const struct { 166static const struct {
@@ -633,7 +728,7 @@ static struct drm_encoder_helper_funcs nv17_tv_helper_funcs = {
633 .prepare = nv17_tv_prepare, 728 .prepare = nv17_tv_prepare,
634 .commit = nv17_tv_commit, 729 .commit = nv17_tv_commit,
635 .mode_set = nv17_tv_mode_set, 730 .mode_set = nv17_tv_mode_set,
636 .detect = nv17_dac_detect, 731 .detect = nv17_tv_detect,
637}; 732};
638 733
639static struct drm_encoder_slave_funcs nv17_tv_slave_funcs = { 734static struct drm_encoder_slave_funcs nv17_tv_slave_funcs = {