2 * Copyright (C) 2010 Texas Instruments Inc
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation version 2.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 #include <linux/module.h>
14 #include <linux/mod_devicetable.h>
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/ctype.h>
18 #include <linux/delay.h>
19 #include <linux/device.h>
20 #include <linux/interrupt.h>
21 #include <linux/platform_device.h>
22 #include <linux/videodev2.h>
23 #include <linux/slab.h>
25 #ifdef CONFIG_ARCH_DAVINCI
26 #include <mach/hardware.h>
30 #include <linux/platform_data/i2c-davinci.h>
34 #include <media/davinci/vpbe_types.h>
35 #include <media/davinci/vpbe_venc.h>
36 #include <media/davinci/vpss.h>
37 #include <media/v4l2-device.h>
39 #include "vpbe_venc_regs.h"
41 #define MODULE_NAME "davinci-vpbe-venc"
43 static const struct platform_device_id vpbe_venc_devtype[] = {
45 .name = DM644X_VPBE_VENC_SUBDEV_NAME,
46 .driver_data = VPBE_VERSION_1,
48 .name = DM365_VPBE_VENC_SUBDEV_NAME,
49 .driver_data = VPBE_VERSION_2,
51 .name = DM355_VPBE_VENC_SUBDEV_NAME,
52 .driver_data = VPBE_VERSION_3,
59 MODULE_DEVICE_TABLE(platform, vpbe_venc_devtype);
62 module_param(debug, int, 0644);
63 MODULE_PARM_DESC(debug, "Debug level 0-2");
66 struct v4l2_subdev sd;
67 struct venc_callback *callback;
68 struct venc_platform_data *pdata;
73 void __iomem *venc_base;
74 void __iomem *vdaccfg_reg;
75 enum vpbe_version venc_type;
78 static inline struct venc_state *to_state(struct v4l2_subdev *sd)
80 return container_of(sd, struct venc_state, sd);
83 static inline u32 venc_read(struct v4l2_subdev *sd, u32 offset)
85 struct venc_state *venc = to_state(sd);
87 return readl(venc->venc_base + offset);
90 static inline u32 venc_write(struct v4l2_subdev *sd, u32 offset, u32 val)
92 struct venc_state *venc = to_state(sd);
94 writel(val, (venc->venc_base + offset));
99 static inline u32 venc_modify(struct v4l2_subdev *sd, u32 offset,
102 u32 new_val = (venc_read(sd, offset) & ~mask) | (val & mask);
104 venc_write(sd, offset, new_val);
109 static inline u32 vdaccfg_write(struct v4l2_subdev *sd, u32 val)
111 struct venc_state *venc = to_state(sd);
113 writel(val, venc->vdaccfg_reg);
115 val = readl(venc->vdaccfg_reg);
120 #define VDAC_COMPONENT 0x543
121 #define VDAC_S_VIDEO 0x210
122 /* This function sets the dac of the VPBE for various outputs
124 static int venc_set_dac(struct v4l2_subdev *sd, u32 out_index)
128 v4l2_dbg(debug, 1, sd, "Setting output to Composite\n");
129 venc_write(sd, VENC_DACSEL, 0);
132 v4l2_dbg(debug, 1, sd, "Setting output to Component\n");
133 venc_write(sd, VENC_DACSEL, VDAC_COMPONENT);
136 v4l2_dbg(debug, 1, sd, "Setting output to S-video\n");
137 venc_write(sd, VENC_DACSEL, VDAC_S_VIDEO);
146 static void venc_enabledigitaloutput(struct v4l2_subdev *sd, int benable)
148 struct venc_state *venc = to_state(sd);
150 v4l2_dbg(debug, 2, sd, "venc_enabledigitaloutput\n");
153 venc_write(sd, VENC_VMOD, 0);
154 venc_write(sd, VENC_CVBS, 0);
155 venc_write(sd, VENC_LCDOUT, 0);
156 venc_write(sd, VENC_HSPLS, 0);
157 venc_write(sd, VENC_HSTART, 0);
158 venc_write(sd, VENC_HVALID, 0);
159 venc_write(sd, VENC_HINT, 0);
160 venc_write(sd, VENC_VSPLS, 0);
161 venc_write(sd, VENC_VSTART, 0);
162 venc_write(sd, VENC_VVALID, 0);
163 venc_write(sd, VENC_VINT, 0);
164 venc_write(sd, VENC_YCCCTL, 0);
165 venc_write(sd, VENC_DACSEL, 0);
168 venc_write(sd, VENC_VMOD, 0);
169 /* disable VCLK output pin enable */
170 venc_write(sd, VENC_VIDCTL, 0x141);
172 /* Disable output sync pins */
173 venc_write(sd, VENC_SYNCCTL, 0);
176 venc_write(sd, VENC_DCLKCTL, 0);
177 venc_write(sd, VENC_DRGBX1, 0x0000057C);
179 /* Disable LCD output control (accepting default polarity) */
180 venc_write(sd, VENC_LCDOUT, 0);
181 if (venc->venc_type != VPBE_VERSION_3)
182 venc_write(sd, VENC_CMPNT, 0x100);
183 venc_write(sd, VENC_HSPLS, 0);
184 venc_write(sd, VENC_HINT, 0);
185 venc_write(sd, VENC_HSTART, 0);
186 venc_write(sd, VENC_HVALID, 0);
188 venc_write(sd, VENC_VSPLS, 0);
189 venc_write(sd, VENC_VINT, 0);
190 venc_write(sd, VENC_VSTART, 0);
191 venc_write(sd, VENC_VVALID, 0);
193 venc_write(sd, VENC_HSDLY, 0);
194 venc_write(sd, VENC_VSDLY, 0);
196 venc_write(sd, VENC_YCCCTL, 0);
197 venc_write(sd, VENC_VSTARTA, 0);
199 /* Set OSD clock and OSD Sync Adavance registers */
200 venc_write(sd, VENC_OSDCLK0, 1);
201 venc_write(sd, VENC_OSDCLK1, 2);
206 venc_enable_vpss_clock(int venc_type,
207 enum vpbe_enc_timings_type type,
210 if (venc_type == VPBE_VERSION_1)
213 if (venc_type == VPBE_VERSION_2 && (type == VPBE_ENC_STD || (type ==
214 VPBE_ENC_DV_TIMINGS && pclock <= 27000000))) {
215 vpss_enable_clock(VPSS_VENC_CLOCK_SEL, 1);
216 vpss_enable_clock(VPSS_VPBE_CLOCK, 1);
220 if (venc_type == VPBE_VERSION_3 && type == VPBE_ENC_STD)
221 vpss_enable_clock(VPSS_VENC_CLOCK_SEL, 0);
224 #define VDAC_CONFIG_SD_V3 0x0E21A6B6
225 #define VDAC_CONFIG_SD_V2 0x081141CF
229 static int venc_set_ntsc(struct v4l2_subdev *sd)
231 struct venc_state *venc = to_state(sd);
232 struct venc_platform_data *pdata = venc->pdata;
234 v4l2_dbg(debug, 2, sd, "venc_set_ntsc\n");
236 /* Setup clock at VPSS & VENC for SD */
237 vpss_enable_clock(VPSS_VENC_CLOCK_SEL, 1);
238 if (pdata->setup_clock(VPBE_ENC_STD, V4L2_STD_525_60) < 0)
241 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_STD, V4L2_STD_525_60);
242 venc_enabledigitaloutput(sd, 0);
244 if (venc->venc_type == VPBE_VERSION_3) {
245 venc_write(sd, VENC_CLKCTL, 0x01);
246 venc_write(sd, VENC_VIDCTL, 0);
247 vdaccfg_write(sd, VDAC_CONFIG_SD_V3);
248 } else if (venc->venc_type == VPBE_VERSION_2) {
249 venc_write(sd, VENC_CLKCTL, 0x01);
250 venc_write(sd, VENC_VIDCTL, 0);
251 vdaccfg_write(sd, VDAC_CONFIG_SD_V2);
253 /* to set VENC CLK DIV to 1 - final clock is 54 MHz */
254 venc_modify(sd, VENC_VIDCTL, 0, 1 << 1);
255 /* Set REC656 Mode */
256 venc_write(sd, VENC_YCCCTL, 0x1);
257 venc_modify(sd, VENC_VDPRO, 0, VENC_VDPRO_DAFRQ);
258 venc_modify(sd, VENC_VDPRO, 0, VENC_VDPRO_DAUPS);
261 venc_write(sd, VENC_VMOD, 0);
262 venc_modify(sd, VENC_VMOD, (1 << VENC_VMOD_VIE_SHIFT),
264 venc_modify(sd, VENC_VMOD, (0 << VENC_VMOD_VMD), VENC_VMOD_VMD);
265 venc_modify(sd, VENC_VMOD, (0 << VENC_VMOD_TVTYP_SHIFT),
267 venc_write(sd, VENC_DACTST, 0x0);
268 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
276 static int venc_set_pal(struct v4l2_subdev *sd)
278 struct venc_state *venc = to_state(sd);
280 v4l2_dbg(debug, 2, sd, "venc_set_pal\n");
282 /* Setup clock at VPSS & VENC for SD */
283 vpss_enable_clock(VPSS_VENC_CLOCK_SEL, 1);
284 if (venc->pdata->setup_clock(VPBE_ENC_STD, V4L2_STD_625_50) < 0)
287 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_STD, V4L2_STD_625_50);
288 venc_enabledigitaloutput(sd, 0);
290 if (venc->venc_type == VPBE_VERSION_3) {
291 venc_write(sd, VENC_CLKCTL, 0x1);
292 venc_write(sd, VENC_VIDCTL, 0);
293 vdaccfg_write(sd, VDAC_CONFIG_SD_V3);
294 } else if (venc->venc_type == VPBE_VERSION_2) {
295 venc_write(sd, VENC_CLKCTL, 0x1);
296 venc_write(sd, VENC_VIDCTL, 0);
297 vdaccfg_write(sd, VDAC_CONFIG_SD_V2);
299 /* to set VENC CLK DIV to 1 - final clock is 54 MHz */
300 venc_modify(sd, VENC_VIDCTL, 0, 1 << 1);
301 /* Set REC656 Mode */
302 venc_write(sd, VENC_YCCCTL, 0x1);
305 venc_modify(sd, VENC_SYNCCTL, 1 << VENC_SYNCCTL_OVD_SHIFT,
307 venc_write(sd, VENC_VMOD, 0);
308 venc_modify(sd, VENC_VMOD,
309 (1 << VENC_VMOD_VIE_SHIFT),
311 venc_modify(sd, VENC_VMOD,
312 (0 << VENC_VMOD_VMD), VENC_VMOD_VMD);
313 venc_modify(sd, VENC_VMOD,
314 (1 << VENC_VMOD_TVTYP_SHIFT),
316 venc_write(sd, VENC_DACTST, 0x0);
317 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
322 #define VDAC_CONFIG_HD_V2 0x081141EF
326 * This function configures the video encoder to EDTV(525p) component setting.
328 static int venc_set_480p59_94(struct v4l2_subdev *sd)
330 struct venc_state *venc = to_state(sd);
331 struct venc_platform_data *pdata = venc->pdata;
333 v4l2_dbg(debug, 2, sd, "venc_set_480p59_94\n");
334 if (venc->venc_type != VPBE_VERSION_1 &&
335 venc->venc_type != VPBE_VERSION_2)
338 /* Setup clock at VPSS & VENC for SD */
339 if (pdata->setup_clock(VPBE_ENC_DV_TIMINGS, 27000000) < 0)
342 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_DV_TIMINGS, 27000000);
343 venc_enabledigitaloutput(sd, 0);
345 if (venc->venc_type == VPBE_VERSION_2)
346 vdaccfg_write(sd, VDAC_CONFIG_HD_V2);
347 venc_write(sd, VENC_OSDCLK0, 0);
348 venc_write(sd, VENC_OSDCLK1, 1);
350 if (venc->venc_type == VPBE_VERSION_1) {
351 venc_modify(sd, VENC_VDPRO, VENC_VDPRO_DAFRQ,
353 venc_modify(sd, VENC_VDPRO, VENC_VDPRO_DAUPS,
357 venc_write(sd, VENC_VMOD, 0);
358 venc_modify(sd, VENC_VMOD, (1 << VENC_VMOD_VIE_SHIFT),
360 venc_modify(sd, VENC_VMOD, VENC_VMOD_HDMD, VENC_VMOD_HDMD);
361 venc_modify(sd, VENC_VMOD, (HDTV_525P << VENC_VMOD_TVTYP_SHIFT),
363 venc_modify(sd, VENC_VMOD, VENC_VMOD_VDMD_YCBCR8 <<
364 VENC_VMOD_VDMD_SHIFT, VENC_VMOD_VDMD);
366 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
374 * This function configures the video encoder to HDTV(625p) component setting
376 static int venc_set_576p50(struct v4l2_subdev *sd)
378 struct venc_state *venc = to_state(sd);
379 struct venc_platform_data *pdata = venc->pdata;
381 v4l2_dbg(debug, 2, sd, "venc_set_576p50\n");
383 if (venc->venc_type != VPBE_VERSION_1 &&
384 venc->venc_type != VPBE_VERSION_2)
386 /* Setup clock at VPSS & VENC for SD */
387 if (pdata->setup_clock(VPBE_ENC_DV_TIMINGS, 27000000) < 0)
390 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_DV_TIMINGS, 27000000);
391 venc_enabledigitaloutput(sd, 0);
393 if (venc->venc_type == VPBE_VERSION_2)
394 vdaccfg_write(sd, VDAC_CONFIG_HD_V2);
396 venc_write(sd, VENC_OSDCLK0, 0);
397 venc_write(sd, VENC_OSDCLK1, 1);
399 if (venc->venc_type == VPBE_VERSION_1) {
400 venc_modify(sd, VENC_VDPRO, VENC_VDPRO_DAFRQ,
402 venc_modify(sd, VENC_VDPRO, VENC_VDPRO_DAUPS,
406 venc_write(sd, VENC_VMOD, 0);
407 venc_modify(sd, VENC_VMOD, (1 << VENC_VMOD_VIE_SHIFT),
409 venc_modify(sd, VENC_VMOD, VENC_VMOD_HDMD, VENC_VMOD_HDMD);
410 venc_modify(sd, VENC_VMOD, (HDTV_625P << VENC_VMOD_TVTYP_SHIFT),
413 venc_modify(sd, VENC_VMOD, VENC_VMOD_VDMD_YCBCR8 <<
414 VENC_VMOD_VDMD_SHIFT, VENC_VMOD_VDMD);
415 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
421 * venc_set_720p60_internal - Setup 720p60 in venc for dm365 only
423 static int venc_set_720p60_internal(struct v4l2_subdev *sd)
425 struct venc_state *venc = to_state(sd);
426 struct venc_platform_data *pdata = venc->pdata;
428 if (pdata->setup_clock(VPBE_ENC_DV_TIMINGS, 74250000) < 0)
431 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_DV_TIMINGS, 74250000);
432 venc_enabledigitaloutput(sd, 0);
434 venc_write(sd, VENC_OSDCLK0, 0);
435 venc_write(sd, VENC_OSDCLK1, 1);
437 venc_write(sd, VENC_VMOD, 0);
438 /* DM365 component HD mode */
439 venc_modify(sd, VENC_VMOD, (1 << VENC_VMOD_VIE_SHIFT),
441 venc_modify(sd, VENC_VMOD, VENC_VMOD_HDMD, VENC_VMOD_HDMD);
442 venc_modify(sd, VENC_VMOD, (HDTV_720P << VENC_VMOD_TVTYP_SHIFT),
444 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
445 venc_write(sd, VENC_XHINTVL, 0);
450 * venc_set_1080i30_internal - Setup 1080i30 in venc for dm365 only
452 static int venc_set_1080i30_internal(struct v4l2_subdev *sd)
454 struct venc_state *venc = to_state(sd);
455 struct venc_platform_data *pdata = venc->pdata;
457 if (pdata->setup_clock(VPBE_ENC_DV_TIMINGS, 74250000) < 0)
460 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_DV_TIMINGS, 74250000);
461 venc_enabledigitaloutput(sd, 0);
463 venc_write(sd, VENC_OSDCLK0, 0);
464 venc_write(sd, VENC_OSDCLK1, 1);
467 venc_write(sd, VENC_VMOD, 0);
468 /* DM365 component HD mode */
469 venc_modify(sd, VENC_VMOD, (1 << VENC_VMOD_VIE_SHIFT),
471 venc_modify(sd, VENC_VMOD, VENC_VMOD_HDMD, VENC_VMOD_HDMD);
472 venc_modify(sd, VENC_VMOD, (HDTV_1080I << VENC_VMOD_TVTYP_SHIFT),
474 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
475 venc_write(sd, VENC_XHINTVL, 0);
479 static int venc_s_std_output(struct v4l2_subdev *sd, v4l2_std_id norm)
481 v4l2_dbg(debug, 1, sd, "venc_s_std_output\n");
483 if (norm & V4L2_STD_525_60)
484 return venc_set_ntsc(sd);
485 else if (norm & V4L2_STD_625_50)
486 return venc_set_pal(sd);
491 static int venc_s_dv_timings(struct v4l2_subdev *sd,
492 struct v4l2_dv_timings *dv_timings)
494 struct venc_state *venc = to_state(sd);
495 u32 height = dv_timings->bt.height;
498 v4l2_dbg(debug, 1, sd, "venc_s_dv_timings\n");
501 return venc_set_576p50(sd);
502 else if (height == 480)
503 return venc_set_480p59_94(sd);
504 else if ((height == 720) &&
505 (venc->venc_type == VPBE_VERSION_2)) {
506 /* TBD setup internal 720p mode here */
507 ret = venc_set_720p60_internal(sd);
508 /* for DM365 VPBE, there is DAC inside */
509 vdaccfg_write(sd, VDAC_CONFIG_HD_V2);
511 } else if ((height == 1080) &&
512 (venc->venc_type == VPBE_VERSION_2)) {
513 /* TBD setup internal 1080i mode here */
514 ret = venc_set_1080i30_internal(sd);
515 /* for DM365 VPBE, there is DAC inside */
516 vdaccfg_write(sd, VDAC_CONFIG_HD_V2);
522 static int venc_s_routing(struct v4l2_subdev *sd, u32 input, u32 output,
525 struct venc_state *venc = to_state(sd);
528 v4l2_dbg(debug, 1, sd, "venc_s_routing\n");
530 ret = venc_set_dac(sd, output);
532 venc->output = output;
537 static long venc_command(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
543 val = venc_read(sd, VENC_VSTAT);
544 *((int *)arg) = ((val & VENC_VSTAT_FIDST) ==
548 v4l2_err(sd, "Wrong IOCTL cmd\n");
555 static const struct v4l2_subdev_core_ops venc_core_ops = {
556 .command = venc_command,
559 static const struct v4l2_subdev_video_ops venc_video_ops = {
560 .s_routing = venc_s_routing,
561 .s_std_output = venc_s_std_output,
562 .s_dv_timings = venc_s_dv_timings,
565 static const struct v4l2_subdev_ops venc_ops = {
566 .core = &venc_core_ops,
567 .video = &venc_video_ops,
570 static int venc_initialize(struct v4l2_subdev *sd)
572 struct venc_state *venc = to_state(sd);
575 /* Set default to output to composite and std to NTSC */
577 venc->std = V4L2_STD_525_60;
579 ret = venc_s_routing(sd, 0, venc->output, 0);
581 v4l2_err(sd, "Error setting output during init\n");
585 ret = venc_s_std_output(sd, venc->std);
587 v4l2_err(sd, "Error setting std during init\n");
594 static int venc_device_get(struct device *dev, void *data)
596 struct platform_device *pdev = to_platform_device(dev);
597 struct venc_state **venc = data;
599 if (strstr(pdev->name, "vpbe-venc") != NULL)
600 *venc = platform_get_drvdata(pdev);
605 struct v4l2_subdev *venc_sub_dev_init(struct v4l2_device *v4l2_dev,
606 const char *venc_name)
608 struct venc_state *venc = NULL;
610 bus_for_each_dev(&platform_bus_type, NULL, &venc,
615 v4l2_subdev_init(&venc->sd, &venc_ops);
617 strcpy(venc->sd.name, venc_name);
618 if (v4l2_device_register_subdev(v4l2_dev, &venc->sd) < 0) {
620 "vpbe unable to register venc sub device\n");
623 if (venc_initialize(&venc->sd)) {
625 "vpbe venc initialization failed\n");
631 EXPORT_SYMBOL(venc_sub_dev_init);
633 static int venc_probe(struct platform_device *pdev)
635 const struct platform_device_id *pdev_id;
636 struct venc_state *venc;
637 struct resource *res;
639 if (!pdev->dev.platform_data) {
640 dev_err(&pdev->dev, "No platform data for VENC sub device");
644 pdev_id = platform_get_device_id(pdev);
648 venc = devm_kzalloc(&pdev->dev, sizeof(struct venc_state), GFP_KERNEL);
652 venc->venc_type = pdev_id->driver_data;
653 venc->pdev = &pdev->dev;
654 venc->pdata = pdev->dev.platform_data;
656 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
658 venc->venc_base = devm_ioremap_resource(&pdev->dev, res);
659 if (IS_ERR(venc->venc_base))
660 return PTR_ERR(venc->venc_base);
662 if (venc->venc_type != VPBE_VERSION_1) {
663 res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
665 venc->vdaccfg_reg = devm_ioremap_resource(&pdev->dev, res);
666 if (IS_ERR(venc->vdaccfg_reg))
667 return PTR_ERR(venc->vdaccfg_reg);
669 spin_lock_init(&venc->lock);
670 platform_set_drvdata(pdev, venc);
671 dev_notice(venc->pdev, "VENC sub device probe success\n");
676 static int venc_remove(struct platform_device *pdev)
681 static struct platform_driver venc_driver = {
683 .remove = venc_remove,
687 .id_table = vpbe_venc_devtype
690 module_platform_driver(venc_driver);
692 MODULE_LICENSE("GPL");
693 MODULE_DESCRIPTION("VPBE VENC Driver");
694 MODULE_AUTHOR("Texas Instruments");