2 * Copyright (c) 2016 Jared McNeill <jmcneill@invisible.ca>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
19 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
21 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
22 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * Allwinner A10/A20 HDMI TX
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 #include <sys/param.h>
37 #include <sys/systm.h>
40 #include <sys/condvar.h>
41 #include <sys/eventhandler.h>
42 #include <sys/kernel.h>
43 #include <sys/module.h>
45 #include <machine/bus.h>
47 #include <dev/ofw/ofw_bus.h>
48 #include <dev/ofw/ofw_bus_subr.h>
50 #include <dev/videomode/videomode.h>
51 #include <dev/videomode/edidvar.h>
53 #include <dev/extres/clk/clk.h>
57 #define HDMI_CTRL 0x004
58 #define CTRL_MODULE_EN (1 << 31)
59 #define HDMI_INT_STATUS 0x008
60 #define HDMI_HPD 0x00c
61 #define HPD_DET (1 << 0)
62 #define HDMI_VID_CTRL 0x010
63 #define VID_CTRL_VIDEO_EN (1 << 31)
64 #define VID_CTRL_HDMI_MODE (1 << 30)
65 #define VID_CTRL_INTERLACE (1 << 4)
66 #define VID_CTRL_REPEATER_2X (1 << 0)
67 #define HDMI_VID_TIMING0 0x014
68 #define VID_ACT_V(v) (((v) - 1) << 16)
69 #define VID_ACT_H(h) (((h) - 1) << 0)
70 #define HDMI_VID_TIMING1 0x018
71 #define VID_VBP(vbp) (((vbp) - 1) << 16)
72 #define VID_HBP(hbp) (((hbp) - 1) << 0)
73 #define HDMI_VID_TIMING2 0x01c
74 #define VID_VFP(vfp) (((vfp) - 1) << 16)
75 #define VID_HFP(hfp) (((hfp) - 1) << 0)
76 #define HDMI_VID_TIMING3 0x020
77 #define VID_VSPW(vspw) (((vspw) - 1) << 16)
78 #define VID_HSPW(hspw) (((hspw) - 1) << 0)
79 #define HDMI_VID_TIMING4 0x024
80 #define TX_CLOCK_NORMAL 0x03e00000
81 #define VID_VSYNC_ACTSEL (1 << 1)
82 #define VID_HSYNC_ACTSEL (1 << 0)
83 #define HDMI_AUD_CTRL 0x040
84 #define AUD_CTRL_EN (1 << 31)
85 #define AUD_CTRL_RST (1 << 30)
86 #define HDMI_ADMA_CTRL 0x044
87 #define HDMI_ADMA_MODE (1 << 31)
88 #define HDMI_ADMA_MODE_DDMA (0 << 31)
89 #define HDMI_ADMA_MODE_NDMA (1 << 31)
90 #define HDMI_AUD_FMT 0x048
91 #define AUD_FMT_CH(n) ((n) - 1)
92 #define HDMI_PCM_CTRL 0x04c
93 #define HDMI_AUD_CTS 0x050
94 #define HDMI_AUD_N 0x054
95 #define HDMI_AUD_CH_STATUS0 0x058
96 #define CH_STATUS0_FS_FREQ (0xf << 24)
97 #define CH_STATUS0_FS_FREQ_48 (2 << 24)
98 #define HDMI_AUD_CH_STATUS1 0x05c
99 #define CH_STATUS1_WORD_LEN (0x7 << 1)
100 #define CH_STATUS1_WORD_LEN_16 (1 << 1)
101 #define HDMI_AUDIO_RESET_RETRY 1000
102 #define HDMI_AUDIO_CHANNELS 2
103 #define HDMI_AUDIO_CHANNELMAP 0x76543210
104 #define HDMI_AUDIO_N 6144 /* 48 kHz */
105 #define HDMI_AUDIO_CTS(r, n) ((((r) * 10) * ((n) / 128)) / 480)
106 #define HDMI_PADCTRL0 0x200
107 #define PADCTRL0_BIASEN (1 << 31)
108 #define PADCTRL0_LDOCEN (1 << 30)
109 #define PADCTRL0_LDODEN (1 << 29)
110 #define PADCTRL0_PWENC (1 << 28)
111 #define PADCTRL0_PWEND (1 << 27)
112 #define PADCTRL0_PWENG (1 << 26)
113 #define PADCTRL0_CKEN (1 << 25)
114 #define PADCTRL0_SEN (1 << 24)
115 #define PADCTRL0_TXEN (1 << 23)
116 #define HDMI_PADCTRL1 0x204
117 #define PADCTRL1_AMP_OPT (1 << 23)
118 #define PADCTRL1_AMPCK_OPT (1 << 22)
119 #define PADCTRL1_DMP_OPT (1 << 21)
120 #define PADCTRL1_EMP_OPT (1 << 20)
121 #define PADCTRL1_EMPCK_OPT (1 << 19)
122 #define PADCTRL1_PWSCK (1 << 18)
123 #define PADCTRL1_PWSDT (1 << 17)
124 #define PADCTRL1_REG_CSMPS (1 << 16)
125 #define PADCTRL1_REG_DEN (1 << 15)
126 #define PADCTRL1_REG_DENCK (1 << 14)
127 #define PADCTRL1_REG_PLRCK (1 << 13)
128 #define PADCTRL1_REG_EMP (0x7 << 10)
129 #define PADCTRL1_REG_EMP_EN (0x2 << 10)
130 #define PADCTRL1_REG_CD (0x3 << 8)
131 #define PADCTRL1_REG_CKSS (0x3 << 6)
132 #define PADCTRL1_REG_CKSS_1X (0x1 << 6)
133 #define PADCTRL1_REG_CKSS_2X (0x0 << 6)
134 #define PADCTRL1_REG_AMP (0x7 << 3)
135 #define PADCTRL1_REG_AMP_EN (0x6 << 3)
136 #define PADCTRL1_REG_PLR (0x7 << 0)
137 #define HDMI_PLLCTRL0 0x208
138 #define PLLCTRL0_PLL_EN (1 << 31)
139 #define PLLCTRL0_BWS (1 << 30)
140 #define PLLCTRL0_HV_IS_33 (1 << 29)
141 #define PLLCTRL0_LDO1_EN (1 << 28)
142 #define PLLCTRL0_LDO2_EN (1 << 27)
143 #define PLLCTRL0_SDIV2 (1 << 25)
144 #define PLLCTRL0_VCO_GAIN (0x1 << 22)
145 #define PLLCTRL0_S (0x7 << 17)
146 #define PLLCTRL0_CP_S (0xf << 12)
147 #define PLLCTRL0_CS (0x7 << 8)
148 #define PLLCTRL0_PREDIV(x) ((x) << 4)
149 #define PLLCTRL0_VCO_S (0x8 << 0)
150 #define HDMI_PLLDBG0 0x20c
151 #define PLLDBG0_CKIN_SEL (1 << 21)
152 #define PLLDBG0_CKIN_SEL_PLL3 (0 << 21)
153 #define PLLDBG0_CKIN_SEL_PLL7 (1 << 21)
154 #define HDMI_PKTCTRL0 0x2f0
155 #define HDMI_PKTCTRL1 0x2f4
156 #define PKTCTRL_PACKET(n,t) ((t) << ((n) << 2))
163 #define DDC_CTRL 0x500
164 #define CTRL_DDC_EN (1 << 31)
165 #define CTRL_DDC_ACMD_START (1 << 30)
166 #define CTRL_DDC_FIFO_DIR (1 << 8)
167 #define CTRL_DDC_FIFO_DIR_READ (0 << 8)
168 #define CTRL_DDC_FIFO_DIR_WRITE (1 << 8)
169 #define CTRL_DDC_SWRST (1 << 0)
170 #define DDC_SLAVE_ADDR 0x504
171 #define SLAVE_ADDR_SEG_SHIFT 24
172 #define SLAVE_ADDR_EDDC_SHIFT 16
173 #define SLAVE_ADDR_OFFSET_SHIFT 8
174 #define SLAVE_ADDR_SHIFT 0
175 #define DDC_INT_STATUS 0x50c
176 #define INT_STATUS_XFER_DONE (1 << 0)
177 #define DDC_FIFO_CTRL 0x510
178 #define FIFO_CTRL_CLEAR (1 << 31)
179 #define DDC_BYTE_COUNTER 0x51c
180 #define DDC_COMMAND 0x520
181 #define COMMAND_EOREAD (4 << 0)
182 #define DDC_CLOCK 0x528
183 #define DDC_CLOCK_M (1 << 3)
184 #define DDC_CLOCK_N (5 << 0)
185 #define DDC_FIFO 0x518
186 #define SWRST_DELAY 1000
187 #define DDC_DELAY 1000
188 #define DDC_RETRY 1000
189 #define DDC_BLKLEN 16
190 #define DDC_ADDR 0x50
191 #define EDDC_ADDR 0x60
192 #define EDID_LENGTH 128
193 #define DDC_CTRL_LINE 0x540
194 #define DDC_LINE_SCL_ENABLE (1 << 8)
195 #define DDC_LINE_SDA_ENABLE (1 << 9)
196 #define HDMI_ENABLE_DELAY 50000
197 #define DDC_READ_RETRY 4
199 #define CEA_TAG_ID 0x02
201 #define DTD_BASIC_AUDIO (1 << 6)
203 #define CEA_DATA_OFF 0x03
204 #define CEA_DATA_START 4
205 #define BLOCK_TAG(x) (((x) >> 5) & 0x7)
206 #define BLOCK_TAG_VSDB 3
207 #define BLOCK_LEN(x) ((x) & 0x1f)
208 #define HDMI_VSDB_MINLEN 5
209 #define HDMI_OUI "\x03\x0c\x00"
210 #define HDMI_OUI_LEN 3
211 #define HDMI_DEFAULT_FREQ 297000000
213 struct a10hdmi_softc {
214 struct resource *res;
216 struct intr_config_hook mode_hook;
218 uint8_t edid[EDID_LENGTH];
228 static struct resource_spec a10hdmi_spec[] = {
229 { SYS_RES_MEMORY, 0, RF_ACTIVE },
233 #define HDMI_READ(sc, reg) bus_read_4((sc)->res, (reg))
234 #define HDMI_WRITE(sc, reg, val) bus_write_4((sc)->res, (reg), (val))
237 a10hdmi_init(struct a10hdmi_softc *sc)
239 /* Enable the HDMI module */
240 HDMI_WRITE(sc, HDMI_CTRL, CTRL_MODULE_EN);
242 /* Configure PLL/DRV settings */
243 HDMI_WRITE(sc, HDMI_PADCTRL0, PADCTRL0_BIASEN | PADCTRL0_LDOCEN |
244 PADCTRL0_LDODEN | PADCTRL0_PWENC | PADCTRL0_PWEND |
245 PADCTRL0_PWENG | PADCTRL0_CKEN | PADCTRL0_TXEN);
246 HDMI_WRITE(sc, HDMI_PADCTRL1, PADCTRL1_AMP_OPT | PADCTRL1_AMPCK_OPT |
247 PADCTRL1_EMP_OPT | PADCTRL1_EMPCK_OPT | PADCTRL1_REG_DEN |
248 PADCTRL1_REG_DENCK | PADCTRL1_REG_EMP_EN | PADCTRL1_REG_AMP_EN);
250 /* Select PLL3 as input clock */
251 HDMI_WRITE(sc, HDMI_PLLDBG0, PLLDBG0_CKIN_SEL_PLL3);
253 DELAY(HDMI_ENABLE_DELAY);
257 a10hdmi_hpd(void *arg)
259 struct a10hdmi_softc *sc;
264 sc = device_get_softc(dev);
266 hpd = HDMI_READ(sc, HDMI_HPD);
267 if ((hpd & HPD_DET) == HPD_DET)
268 EVENTHANDLER_INVOKE(hdmi_event, dev, HDMI_EVENT_CONNECTED);
270 config_intrhook_disestablish(&sc->mode_hook);
274 a10hdmi_probe(device_t dev)
276 if (!ofw_bus_status_okay(dev))
279 if (!ofw_bus_is_compatible(dev, "allwinner,sun7i-a20-hdmi"))
282 device_set_desc(dev, "Allwinner HDMI TX");
283 return (BUS_PROBE_DEFAULT);
287 a10hdmi_attach(device_t dev)
289 struct a10hdmi_softc *sc;
292 sc = device_get_softc(dev);
294 if (bus_alloc_resources(dev, a10hdmi_spec, &sc->res)) {
295 device_printf(dev, "cannot allocate resources for device\n");
300 error = clk_get_by_ofw_name(dev, 0, "ahb", &sc->clk_ahb);
302 device_printf(dev, "cannot find ahb clock\n");
305 error = clk_get_by_ofw_name(dev, 0, "hdmi", &sc->clk_hdmi);
307 device_printf(dev, "cannot find hdmi clock\n");
310 error = clk_get_by_ofw_name(dev, 0, "lcd", &sc->clk_lcd);
312 device_printf(dev, "cannot find lcd clock\n");
314 /* Enable HDMI clock */
315 error = clk_enable(sc->clk_hdmi);
317 device_printf(dev, "cannot enable hdmi clock\n");
320 /* Gating AHB clock for HDMI */
321 error = clk_enable(sc->clk_ahb);
323 device_printf(dev, "cannot enable ahb gate\n");
329 sc->mode_hook.ich_func = a10hdmi_hpd;
330 sc->mode_hook.ich_arg = dev;
332 error = config_intrhook_establish(&sc->mode_hook);
340 a10hdmi_ddc_xfer(struct a10hdmi_softc *sc, uint16_t addr, uint8_t seg,
341 uint8_t off, int len)
346 /* Set FIFO direction to read */
347 val = HDMI_READ(sc, DDC_CTRL);
348 val &= ~CTRL_DDC_FIFO_DIR;
349 val |= CTRL_DDC_FIFO_DIR_READ;
350 HDMI_WRITE(sc, DDC_CTRL, val);
352 /* Setup DDC slave address */
353 val = (addr << SLAVE_ADDR_SHIFT) | (seg << SLAVE_ADDR_SEG_SHIFT) |
354 (EDDC_ADDR << SLAVE_ADDR_EDDC_SHIFT) |
355 (off << SLAVE_ADDR_OFFSET_SHIFT);
356 HDMI_WRITE(sc, DDC_SLAVE_ADDR, val);
359 val = HDMI_READ(sc, DDC_FIFO_CTRL);
360 val |= FIFO_CTRL_CLEAR;
361 HDMI_WRITE(sc, DDC_FIFO_CTRL, val);
363 /* Set transfer length */
364 HDMI_WRITE(sc, DDC_BYTE_COUNTER, len);
366 /* Set command to "Explicit Offset Address Read" */
367 HDMI_WRITE(sc, DDC_COMMAND, COMMAND_EOREAD);
370 val = HDMI_READ(sc, DDC_CTRL);
371 val |= CTRL_DDC_ACMD_START;
372 HDMI_WRITE(sc, DDC_CTRL, val);
374 /* Wait for command to start */
376 while (--retry > 0) {
377 val = HDMI_READ(sc, DDC_CTRL);
378 if ((val & CTRL_DDC_ACMD_START) == 0)
385 /* Ensure that the transfer completed */
386 val = HDMI_READ(sc, DDC_INT_STATUS);
387 if ((val & INT_STATUS_XFER_DONE) == 0)
394 a10hdmi_ddc_read(struct a10hdmi_softc *sc, int block, uint8_t *edid)
396 int resid, off, len, error;
401 off = (block & 1) ? EDID_LENGTH : 0;
404 len = min(resid, DDC_BLKLEN);
405 error = a10hdmi_ddc_xfer(sc, DDC_ADDR, block >> 1, off, len);
409 bus_read_multi_1(sc->res, DDC_FIFO, pbuf, len);
420 a10hdmi_detect_hdmi_vsdb(uint8_t *edid)
422 int off, p, btag, blen;
424 if (edid[EXT_TAG] != CEA_TAG_ID)
427 off = edid[CEA_DATA_OFF];
429 /* CEA data block collection starts at byte 4 */
430 if (off <= CEA_DATA_START)
433 /* Parse the CEA data blocks */
434 for (p = CEA_DATA_START; p < off;) {
435 btag = BLOCK_TAG(edid[p]);
436 blen = BLOCK_LEN(edid[p]);
438 /* Make sure the length is sane */
439 if (p + blen + 1 > off)
442 /* Look for a VSDB with the HDMI 24-bit IEEE registration ID */
443 if (btag == BLOCK_TAG_VSDB && blen >= HDMI_VSDB_MINLEN &&
444 memcmp(&edid[p + 1], HDMI_OUI, HDMI_OUI_LEN) == 0)
447 /* Next data block */
455 a10hdmi_detect_hdmi(struct a10hdmi_softc *sc, int *phdmi, int *paudio)
458 uint8_t edid[EDID_LENGTH];
461 *phdmi = *paudio = 0;
463 if (edid_parse(sc->edid, &ei) != 0)
466 /* Scan through extension blocks, looking for a CEA-861 block. */
467 for (block = 1; block <= ei.edid_ext_block_count; block++) {
468 if (a10hdmi_ddc_read(sc, block, edid) != 0)
471 if (a10hdmi_detect_hdmi_vsdb(edid) != 0) {
473 *paudio = ((edid[CEA_DTD] & DTD_BASIC_AUDIO) != 0);
480 a10hdmi_get_edid(device_t dev, uint8_t **edid, uint32_t *edid_len)
482 struct a10hdmi_softc *sc;
485 sc = device_get_softc(dev);
486 retry = DDC_READ_RETRY;
488 while (--retry > 0) {
489 /* I2C software reset */
490 HDMI_WRITE(sc, DDC_FIFO_CTRL, 0);
491 HDMI_WRITE(sc, DDC_CTRL, CTRL_DDC_EN | CTRL_DDC_SWRST);
493 if (HDMI_READ(sc, DDC_CTRL) & CTRL_DDC_SWRST) {
494 device_printf(dev, "DDC software reset failed\n");
498 /* Configure DDC clock */
499 HDMI_WRITE(sc, DDC_CLOCK, DDC_CLOCK_M | DDC_CLOCK_N);
502 HDMI_WRITE(sc, DDC_CTRL_LINE,
503 DDC_LINE_SCL_ENABLE | DDC_LINE_SDA_ENABLE);
505 /* Read EDID block */
506 error = a10hdmi_ddc_read(sc, 0, sc->edid);
509 *edid_len = sizeof(sc->edid);
515 a10hdmi_detect_hdmi(sc, &sc->has_hdmi, &sc->has_audio);
517 sc->has_hdmi = sc->has_audio = 0;
523 a10hdmi_set_audiomode(device_t dev, const struct videomode *mode)
525 struct a10hdmi_softc *sc;
529 sc = device_get_softc(dev);
531 /* Disable and reset audio module and wait for reset bit to clear */
532 HDMI_WRITE(sc, HDMI_AUD_CTRL, AUD_CTRL_RST);
533 for (retry = HDMI_AUDIO_RESET_RETRY; retry > 0; retry--) {
534 val = HDMI_READ(sc, HDMI_AUD_CTRL);
535 if ((val & AUD_CTRL_RST) == 0)
539 device_printf(dev, "timeout waiting for audio module\n");
546 /* DMA and FIFO control */
547 HDMI_WRITE(sc, HDMI_ADMA_CTRL, HDMI_ADMA_MODE_DDMA);
549 /* Audio format control (LPCM, S16LE, stereo) */
550 HDMI_WRITE(sc, HDMI_AUD_FMT, AUD_FMT_CH(HDMI_AUDIO_CHANNELS));
552 /* Channel mappings */
553 HDMI_WRITE(sc, HDMI_PCM_CTRL, HDMI_AUDIO_CHANNELMAP);
556 HDMI_WRITE(sc, HDMI_AUD_CTS,
557 HDMI_AUDIO_CTS(mode->dot_clock, HDMI_AUDIO_N));
558 HDMI_WRITE(sc, HDMI_AUD_N, HDMI_AUDIO_N);
560 /* Set sampling frequency to 48 kHz, word length to 16-bit */
561 HDMI_WRITE(sc, HDMI_AUD_CH_STATUS0, CH_STATUS0_FS_FREQ_48);
562 HDMI_WRITE(sc, HDMI_AUD_CH_STATUS1, CH_STATUS1_WORD_LEN_16);
565 HDMI_WRITE(sc, HDMI_AUD_CTRL, AUD_CTRL_EN);
569 a10hdmi_get_tcon_config(struct a10hdmi_softc *sc, int *div, int *dbl)
571 uint64_t lcd_fin, lcd_fout;
572 clk_t clk_lcd_parent;
576 error = clk_get_parent(sc->clk_lcd, &clk_lcd_parent);
580 /* Get the LCD CH1 special clock 2 divider */
581 error = clk_get_freq(sc->clk_lcd, &lcd_fout);
584 error = clk_get_freq(clk_lcd_parent, &lcd_fin);
587 *div = lcd_fin / lcd_fout;
589 /* Detect LCD CH1 special clock using a 1X or 2X source */
591 pname = clk_get_name(clk_lcd_parent);
592 if (strcmp(pname, "pll3") == 0 || strcmp(pname, "pll7") == 0)
601 a10hdmi_set_videomode(device_t dev, const struct videomode *mode)
603 struct a10hdmi_softc *sc;
604 int error, clk_div, clk_dbl;
605 int dblscan, hfp, hspw, hbp, vfp, vspw, vbp;
608 sc = device_get_softc(dev);
609 dblscan = !!(mode->flags & VID_DBLSCAN);
610 hfp = mode->hsync_start - mode->hdisplay;
611 hspw = mode->hsync_end - mode->hsync_start;
612 hbp = mode->htotal - mode->hsync_start;
613 vfp = mode->vsync_start - mode->vdisplay;
614 vspw = mode->vsync_end - mode->vsync_start;
615 vbp = mode->vtotal - mode->vsync_start;
617 error = a10hdmi_get_tcon_config(sc, &clk_div, &clk_dbl);
619 device_printf(dev, "couldn't get tcon config: %d\n", error);
623 /* Clear interrupt status */
624 HDMI_WRITE(sc, HDMI_INT_STATUS, HDMI_READ(sc, HDMI_INT_STATUS));
627 val = HDMI_READ(sc, HDMI_PADCTRL1);
628 val &= ~PADCTRL1_REG_CKSS;
629 val |= (clk_dbl ? PADCTRL1_REG_CKSS_2X : PADCTRL1_REG_CKSS_1X);
630 HDMI_WRITE(sc, HDMI_PADCTRL1, val);
631 HDMI_WRITE(sc, HDMI_PLLCTRL0, PLLCTRL0_PLL_EN | PLLCTRL0_BWS |
632 PLLCTRL0_HV_IS_33 | PLLCTRL0_LDO1_EN | PLLCTRL0_LDO2_EN |
633 PLLCTRL0_SDIV2 | PLLCTRL0_VCO_GAIN | PLLCTRL0_S |
634 PLLCTRL0_CP_S | PLLCTRL0_CS | PLLCTRL0_PREDIV(clk_div) |
637 /* Setup display settings */
639 device_printf(dev, "HDMI: %s, Audio: %s\n",
640 sc->has_hdmi ? "yes" : "no", sc->has_audio ? "yes" : "no");
643 val |= VID_CTRL_HDMI_MODE;
644 if (mode->flags & VID_INTERLACE)
645 val |= VID_CTRL_INTERLACE;
646 if (mode->flags & VID_DBLSCAN)
647 val |= VID_CTRL_REPEATER_2X;
648 HDMI_WRITE(sc, HDMI_VID_CTRL, val);
650 /* Setup display timings */
651 HDMI_WRITE(sc, HDMI_VID_TIMING0,
652 VID_ACT_V(mode->vdisplay) | VID_ACT_H(mode->hdisplay << dblscan));
653 HDMI_WRITE(sc, HDMI_VID_TIMING1,
654 VID_VBP(vbp) | VID_HBP(hbp << dblscan));
655 HDMI_WRITE(sc, HDMI_VID_TIMING2,
656 VID_VFP(vfp) | VID_HFP(hfp << dblscan));
657 HDMI_WRITE(sc, HDMI_VID_TIMING3,
658 VID_VSPW(vspw) | VID_HSPW(hspw << dblscan));
659 val = TX_CLOCK_NORMAL;
660 if (mode->flags & VID_PVSYNC)
661 val |= VID_VSYNC_ACTSEL;
662 if (mode->flags & VID_PHSYNC)
663 val |= VID_HSYNC_ACTSEL;
664 HDMI_WRITE(sc, HDMI_VID_TIMING4, val);
666 /* This is an ordered list of infoframe packets that the HDMI
667 * transmitter will send. Transmit packets in the following order:
668 * 1. General control packet
671 * There are 2 registers with 4 slots each. The list is terminated
672 * with the special PKT_END marker.
674 HDMI_WRITE(sc, HDMI_PKTCTRL0,
675 PKTCTRL_PACKET(0, PKT_GC) | PKTCTRL_PACKET(1, PKT_AVI) |
676 PKTCTRL_PACKET(2, PKT_AI) | PKTCTRL_PACKET(3, PKT_END));
677 HDMI_WRITE(sc, HDMI_PKTCTRL1, 0);
680 a10hdmi_set_audiomode(dev, mode);
686 a10hdmi_enable(device_t dev, int onoff)
688 struct a10hdmi_softc *sc;
691 sc = device_get_softc(dev);
693 /* Enable or disable video output */
694 val = HDMI_READ(sc, HDMI_VID_CTRL);
696 val |= VID_CTRL_VIDEO_EN;
698 val &= ~VID_CTRL_VIDEO_EN;
699 HDMI_WRITE(sc, HDMI_VID_CTRL, val);
704 static device_method_t a10hdmi_methods[] = {
705 /* Device interface */
706 DEVMETHOD(device_probe, a10hdmi_probe),
707 DEVMETHOD(device_attach, a10hdmi_attach),
710 DEVMETHOD(hdmi_get_edid, a10hdmi_get_edid),
711 DEVMETHOD(hdmi_set_videomode, a10hdmi_set_videomode),
712 DEVMETHOD(hdmi_enable, a10hdmi_enable),
717 static driver_t a10hdmi_driver = {
720 sizeof(struct a10hdmi_softc),
723 static devclass_t a10hdmi_devclass;
725 DRIVER_MODULE(a10hdmi, simplebus, a10hdmi_driver, a10hdmi_devclass, 0, 0);
726 MODULE_VERSION(a10hdmi, 1);