This source file includes following definitions.
- hdmi_wp_dump
- hdmi_wp_get_irqstatus
- hdmi_wp_set_irqstatus
- hdmi_wp_set_irqenable
- hdmi_wp_clear_irqenable
- hdmi_wp_set_phy_pwr
- hdmi_wp_set_pll_pwr
- hdmi_wp_video_start
- hdmi_wp_video_stop
- hdmi_wp_video_config_format
- hdmi_wp_video_config_interface
- hdmi_wp_video_config_timing
- hdmi_wp_init_vid_fmt_timings
- hdmi_wp_audio_config_format
- hdmi_wp_audio_config_dma
- hdmi_wp_audio_enable
- hdmi_wp_audio_core_req_enable
- hdmi_wp_init
- hdmi_wp_get_audio_dma_addr
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8 #define DSS_SUBSYS_NAME "HDMIWP"
9
10 #include <linux/kernel.h>
11 #include <linux/err.h>
12 #include <linux/io.h>
13 #include <linux/platform_device.h>
14 #include <linux/seq_file.h>
15
16 #include "omapdss.h"
17 #include "dss.h"
18 #include "hdmi.h"
19
20 void hdmi_wp_dump(struct hdmi_wp_data *wp, struct seq_file *s)
21 {
22 #define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, hdmi_read_reg(wp->base, r))
23
24 DUMPREG(HDMI_WP_REVISION);
25 DUMPREG(HDMI_WP_SYSCONFIG);
26 DUMPREG(HDMI_WP_IRQSTATUS_RAW);
27 DUMPREG(HDMI_WP_IRQSTATUS);
28 DUMPREG(HDMI_WP_IRQENABLE_SET);
29 DUMPREG(HDMI_WP_IRQENABLE_CLR);
30 DUMPREG(HDMI_WP_IRQWAKEEN);
31 DUMPREG(HDMI_WP_PWR_CTRL);
32 DUMPREG(HDMI_WP_DEBOUNCE);
33 DUMPREG(HDMI_WP_VIDEO_CFG);
34 DUMPREG(HDMI_WP_VIDEO_SIZE);
35 DUMPREG(HDMI_WP_VIDEO_TIMING_H);
36 DUMPREG(HDMI_WP_VIDEO_TIMING_V);
37 DUMPREG(HDMI_WP_CLK);
38 DUMPREG(HDMI_WP_AUDIO_CFG);
39 DUMPREG(HDMI_WP_AUDIO_CFG2);
40 DUMPREG(HDMI_WP_AUDIO_CTRL);
41 DUMPREG(HDMI_WP_AUDIO_DATA);
42 }
43
44 u32 hdmi_wp_get_irqstatus(struct hdmi_wp_data *wp)
45 {
46 return hdmi_read_reg(wp->base, HDMI_WP_IRQSTATUS);
47 }
48
49 void hdmi_wp_set_irqstatus(struct hdmi_wp_data *wp, u32 irqstatus)
50 {
51 hdmi_write_reg(wp->base, HDMI_WP_IRQSTATUS, irqstatus);
52
53 hdmi_read_reg(wp->base, HDMI_WP_IRQSTATUS);
54 }
55
56 void hdmi_wp_set_irqenable(struct hdmi_wp_data *wp, u32 mask)
57 {
58 hdmi_write_reg(wp->base, HDMI_WP_IRQENABLE_SET, mask);
59 }
60
61 void hdmi_wp_clear_irqenable(struct hdmi_wp_data *wp, u32 mask)
62 {
63 hdmi_write_reg(wp->base, HDMI_WP_IRQENABLE_CLR, mask);
64 }
65
66
67 int hdmi_wp_set_phy_pwr(struct hdmi_wp_data *wp, enum hdmi_phy_pwr val)
68 {
69
70 if (REG_GET(wp->base, HDMI_WP_PWR_CTRL, 5, 4) == val)
71 return 0;
72
73
74 REG_FLD_MOD(wp->base, HDMI_WP_PWR_CTRL, val, 7, 6);
75
76
77 if (hdmi_wait_for_bit_change(wp->base, HDMI_WP_PWR_CTRL, 5, 4, val)
78 != val) {
79 DSSERR("Failed to set PHY power mode to %d\n", val);
80 return -ETIMEDOUT;
81 }
82
83 return 0;
84 }
85
86
87 int hdmi_wp_set_pll_pwr(struct hdmi_wp_data *wp, enum hdmi_pll_pwr val)
88 {
89
90 REG_FLD_MOD(wp->base, HDMI_WP_PWR_CTRL, val, 3, 2);
91
92
93 if (hdmi_wait_for_bit_change(wp->base, HDMI_WP_PWR_CTRL, 1, 0, val)
94 != val) {
95 DSSERR("Failed to set PLL_PWR_STATUS\n");
96 return -ETIMEDOUT;
97 }
98
99 return 0;
100 }
101
102 int hdmi_wp_video_start(struct hdmi_wp_data *wp)
103 {
104 REG_FLD_MOD(wp->base, HDMI_WP_VIDEO_CFG, true, 31, 31);
105
106 return 0;
107 }
108
109 void hdmi_wp_video_stop(struct hdmi_wp_data *wp)
110 {
111 int i;
112
113 hdmi_write_reg(wp->base, HDMI_WP_IRQSTATUS, HDMI_IRQ_VIDEO_FRAME_DONE);
114
115 REG_FLD_MOD(wp->base, HDMI_WP_VIDEO_CFG, false, 31, 31);
116
117 for (i = 0; i < 50; ++i) {
118 u32 v;
119
120 msleep(20);
121
122 v = hdmi_read_reg(wp->base, HDMI_WP_IRQSTATUS_RAW);
123 if (v & HDMI_IRQ_VIDEO_FRAME_DONE)
124 return;
125 }
126
127 DSSERR("no HDMI FRAMEDONE when disabling output\n");
128 }
129
130 void hdmi_wp_video_config_format(struct hdmi_wp_data *wp,
131 const struct hdmi_video_format *video_fmt)
132 {
133 u32 l = 0;
134
135 REG_FLD_MOD(wp->base, HDMI_WP_VIDEO_CFG, video_fmt->packing_mode,
136 10, 8);
137
138 l |= FLD_VAL(video_fmt->y_res, 31, 16);
139 l |= FLD_VAL(video_fmt->x_res, 15, 0);
140 hdmi_write_reg(wp->base, HDMI_WP_VIDEO_SIZE, l);
141 }
142
143 void hdmi_wp_video_config_interface(struct hdmi_wp_data *wp,
144 const struct videomode *vm)
145 {
146 u32 r;
147 bool vsync_inv, hsync_inv;
148 DSSDBG("Enter hdmi_wp_video_config_interface\n");
149
150 vsync_inv = !!(vm->flags & DISPLAY_FLAGS_VSYNC_LOW);
151 hsync_inv = !!(vm->flags & DISPLAY_FLAGS_HSYNC_LOW);
152
153 r = hdmi_read_reg(wp->base, HDMI_WP_VIDEO_CFG);
154 r = FLD_MOD(r, 1, 7, 7);
155 r = FLD_MOD(r, 1, 6, 6);
156 r = FLD_MOD(r, vsync_inv, 5, 5);
157 r = FLD_MOD(r, hsync_inv, 4, 4);
158 r = FLD_MOD(r, !!(vm->flags & DISPLAY_FLAGS_INTERLACED), 3, 3);
159 r = FLD_MOD(r, 1, 1, 0);
160 hdmi_write_reg(wp->base, HDMI_WP_VIDEO_CFG, r);
161 }
162
163 void hdmi_wp_video_config_timing(struct hdmi_wp_data *wp,
164 const struct videomode *vm)
165 {
166 u32 timing_h = 0;
167 u32 timing_v = 0;
168 unsigned int hsync_len_offset = 1;
169
170 DSSDBG("Enter hdmi_wp_video_config_timing\n");
171
172
173
174
175
176
177
178 if (wp->version == 4)
179 hsync_len_offset = 0;
180
181 timing_h |= FLD_VAL(vm->hback_porch, 31, 20);
182 timing_h |= FLD_VAL(vm->hfront_porch, 19, 8);
183 timing_h |= FLD_VAL(vm->hsync_len - hsync_len_offset, 7, 0);
184 hdmi_write_reg(wp->base, HDMI_WP_VIDEO_TIMING_H, timing_h);
185
186 timing_v |= FLD_VAL(vm->vback_porch, 31, 20);
187 timing_v |= FLD_VAL(vm->vfront_porch, 19, 8);
188 timing_v |= FLD_VAL(vm->vsync_len, 7, 0);
189 hdmi_write_reg(wp->base, HDMI_WP_VIDEO_TIMING_V, timing_v);
190 }
191
192 void hdmi_wp_init_vid_fmt_timings(struct hdmi_video_format *video_fmt,
193 struct videomode *vm, const struct hdmi_config *param)
194 {
195 DSSDBG("Enter hdmi_wp_video_init_format\n");
196
197 video_fmt->packing_mode = HDMI_PACK_10b_RGB_YUV444;
198 video_fmt->y_res = param->vm.vactive;
199 video_fmt->x_res = param->vm.hactive;
200
201 vm->hback_porch = param->vm.hback_porch;
202 vm->hfront_porch = param->vm.hfront_porch;
203 vm->hsync_len = param->vm.hsync_len;
204 vm->vback_porch = param->vm.vback_porch;
205 vm->vfront_porch = param->vm.vfront_porch;
206 vm->vsync_len = param->vm.vsync_len;
207
208 vm->flags = param->vm.flags;
209
210 if (param->vm.flags & DISPLAY_FLAGS_INTERLACED) {
211 video_fmt->y_res /= 2;
212 vm->vback_porch /= 2;
213 vm->vfront_porch /= 2;
214 vm->vsync_len /= 2;
215 }
216
217 if (param->vm.flags & DISPLAY_FLAGS_DOUBLECLK) {
218 video_fmt->x_res *= 2;
219 vm->hfront_porch *= 2;
220 vm->hsync_len *= 2;
221 vm->hback_porch *= 2;
222 }
223 }
224
225 void hdmi_wp_audio_config_format(struct hdmi_wp_data *wp,
226 struct hdmi_audio_format *aud_fmt)
227 {
228 u32 r;
229
230 DSSDBG("Enter hdmi_wp_audio_config_format\n");
231
232 r = hdmi_read_reg(wp->base, HDMI_WP_AUDIO_CFG);
233 if (wp->version == 4) {
234 r = FLD_MOD(r, aud_fmt->stereo_channels, 26, 24);
235 r = FLD_MOD(r, aud_fmt->active_chnnls_msk, 23, 16);
236 }
237 r = FLD_MOD(r, aud_fmt->en_sig_blk_strt_end, 5, 5);
238 r = FLD_MOD(r, aud_fmt->type, 4, 4);
239 r = FLD_MOD(r, aud_fmt->justification, 3, 3);
240 r = FLD_MOD(r, aud_fmt->sample_order, 2, 2);
241 r = FLD_MOD(r, aud_fmt->samples_per_word, 1, 1);
242 r = FLD_MOD(r, aud_fmt->sample_size, 0, 0);
243 hdmi_write_reg(wp->base, HDMI_WP_AUDIO_CFG, r);
244 }
245
246 void hdmi_wp_audio_config_dma(struct hdmi_wp_data *wp,
247 struct hdmi_audio_dma *aud_dma)
248 {
249 u32 r;
250
251 DSSDBG("Enter hdmi_wp_audio_config_dma\n");
252
253 r = hdmi_read_reg(wp->base, HDMI_WP_AUDIO_CFG2);
254 r = FLD_MOD(r, aud_dma->transfer_size, 15, 8);
255 r = FLD_MOD(r, aud_dma->block_size, 7, 0);
256 hdmi_write_reg(wp->base, HDMI_WP_AUDIO_CFG2, r);
257
258 r = hdmi_read_reg(wp->base, HDMI_WP_AUDIO_CTRL);
259 r = FLD_MOD(r, aud_dma->mode, 9, 9);
260 r = FLD_MOD(r, aud_dma->fifo_threshold, 8, 0);
261 hdmi_write_reg(wp->base, HDMI_WP_AUDIO_CTRL, r);
262 }
263
264 int hdmi_wp_audio_enable(struct hdmi_wp_data *wp, bool enable)
265 {
266 REG_FLD_MOD(wp->base, HDMI_WP_AUDIO_CTRL, enable, 31, 31);
267
268 return 0;
269 }
270
271 int hdmi_wp_audio_core_req_enable(struct hdmi_wp_data *wp, bool enable)
272 {
273 REG_FLD_MOD(wp->base, HDMI_WP_AUDIO_CTRL, enable, 30, 30);
274
275 return 0;
276 }
277
278 int hdmi_wp_init(struct platform_device *pdev, struct hdmi_wp_data *wp,
279 unsigned int version)
280 {
281 struct resource *res;
282
283 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "wp");
284 wp->base = devm_ioremap_resource(&pdev->dev, res);
285 if (IS_ERR(wp->base))
286 return PTR_ERR(wp->base);
287
288 wp->phys_base = res->start;
289 wp->version = version;
290
291 return 0;
292 }
293
294 phys_addr_t hdmi_wp_get_audio_dma_addr(struct hdmi_wp_data *wp)
295 {
296 return wp->phys_base + HDMI_WP_AUDIO_DATA;
297 }