1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2010 Texas Instruments Inc
5 #include <linux/module.h>
6 #include <linux/mod_devicetable.h>
7 #include <linux/kernel.h>
8 #include <linux/init.h>
9 #include <linux/ctype.h>
10 #include <linux/delay.h>
11 #include <linux/device.h>
12 #include <linux/interrupt.h>
13 #include <linux/platform_device.h>
14 #include <linux/videodev2.h>
15 #include <linux/slab.h>
17 #ifdef CONFIG_ARCH_DAVINCI
18 #include <mach/hardware.h>
22 #include <linux/platform_data/i2c-davinci.h>
26 #include <media/davinci/vpbe_types.h>
27 #include <media/davinci/vpbe_venc.h>
28 #include <media/davinci/vpss.h>
29 #include <media/v4l2-device.h>
31 #include "vpbe_venc_regs.h"
33 #define MODULE_NAME "davinci-vpbe-venc"
35 static const struct platform_device_id vpbe_venc_devtype[] = {
37 .name = DM644X_VPBE_VENC_SUBDEV_NAME,
38 .driver_data = VPBE_VERSION_1,
40 .name = DM365_VPBE_VENC_SUBDEV_NAME,
41 .driver_data = VPBE_VERSION_2,
43 .name = DM355_VPBE_VENC_SUBDEV_NAME,
44 .driver_data = VPBE_VERSION_3,
51 MODULE_DEVICE_TABLE(platform, vpbe_venc_devtype);
54 module_param(debug, int, 0644);
55 MODULE_PARM_DESC(debug, "Debug level 0-2");
58 struct v4l2_subdev sd;
59 struct venc_callback *callback;
60 struct venc_platform_data *pdata;
65 void __iomem *venc_base;
66 void __iomem *vdaccfg_reg;
67 enum vpbe_version venc_type;
70 static inline struct venc_state *to_state(struct v4l2_subdev *sd)
72 return container_of(sd, struct venc_state, sd);
75 static inline u32 venc_read(struct v4l2_subdev *sd, u32 offset)
77 struct venc_state *venc = to_state(sd);
79 return readl(venc->venc_base + offset);
82 static inline u32 venc_write(struct v4l2_subdev *sd, u32 offset, u32 val)
84 struct venc_state *venc = to_state(sd);
86 writel(val, (venc->venc_base + offset));
91 static inline u32 venc_modify(struct v4l2_subdev *sd, u32 offset,
94 u32 new_val = (venc_read(sd, offset) & ~mask) | (val & mask);
96 venc_write(sd, offset, new_val);
101 static inline u32 vdaccfg_write(struct v4l2_subdev *sd, u32 val)
103 struct venc_state *venc = to_state(sd);
105 writel(val, venc->vdaccfg_reg);
107 val = readl(venc->vdaccfg_reg);
112 #define VDAC_COMPONENT 0x543
113 #define VDAC_S_VIDEO 0x210
114 /* This function sets the dac of the VPBE for various outputs
116 static int venc_set_dac(struct v4l2_subdev *sd, u32 out_index)
120 v4l2_dbg(debug, 1, sd, "Setting output to Composite\n");
121 venc_write(sd, VENC_DACSEL, 0);
124 v4l2_dbg(debug, 1, sd, "Setting output to Component\n");
125 venc_write(sd, VENC_DACSEL, VDAC_COMPONENT);
128 v4l2_dbg(debug, 1, sd, "Setting output to S-video\n");
129 venc_write(sd, VENC_DACSEL, VDAC_S_VIDEO);
138 static void venc_enabledigitaloutput(struct v4l2_subdev *sd, int benable)
140 struct venc_state *venc = to_state(sd);
142 v4l2_dbg(debug, 2, sd, "venc_enabledigitaloutput\n");
145 venc_write(sd, VENC_VMOD, 0);
146 venc_write(sd, VENC_CVBS, 0);
147 venc_write(sd, VENC_LCDOUT, 0);
148 venc_write(sd, VENC_HSPLS, 0);
149 venc_write(sd, VENC_HSTART, 0);
150 venc_write(sd, VENC_HVALID, 0);
151 venc_write(sd, VENC_HINT, 0);
152 venc_write(sd, VENC_VSPLS, 0);
153 venc_write(sd, VENC_VSTART, 0);
154 venc_write(sd, VENC_VVALID, 0);
155 venc_write(sd, VENC_VINT, 0);
156 venc_write(sd, VENC_YCCCTL, 0);
157 venc_write(sd, VENC_DACSEL, 0);
160 venc_write(sd, VENC_VMOD, 0);
161 /* disable VCLK output pin enable */
162 venc_write(sd, VENC_VIDCTL, 0x141);
164 /* Disable output sync pins */
165 venc_write(sd, VENC_SYNCCTL, 0);
168 venc_write(sd, VENC_DCLKCTL, 0);
169 venc_write(sd, VENC_DRGBX1, 0x0000057C);
171 /* Disable LCD output control (accepting default polarity) */
172 venc_write(sd, VENC_LCDOUT, 0);
173 if (venc->venc_type != VPBE_VERSION_3)
174 venc_write(sd, VENC_CMPNT, 0x100);
175 venc_write(sd, VENC_HSPLS, 0);
176 venc_write(sd, VENC_HINT, 0);
177 venc_write(sd, VENC_HSTART, 0);
178 venc_write(sd, VENC_HVALID, 0);
180 venc_write(sd, VENC_VSPLS, 0);
181 venc_write(sd, VENC_VINT, 0);
182 venc_write(sd, VENC_VSTART, 0);
183 venc_write(sd, VENC_VVALID, 0);
185 venc_write(sd, VENC_HSDLY, 0);
186 venc_write(sd, VENC_VSDLY, 0);
188 venc_write(sd, VENC_YCCCTL, 0);
189 venc_write(sd, VENC_VSTARTA, 0);
191 /* Set OSD clock and OSD Sync Adavance registers */
192 venc_write(sd, VENC_OSDCLK0, 1);
193 venc_write(sd, VENC_OSDCLK1, 2);
198 venc_enable_vpss_clock(int venc_type,
199 enum vpbe_enc_timings_type type,
202 if (venc_type == VPBE_VERSION_1)
205 if (venc_type == VPBE_VERSION_2 && (type == VPBE_ENC_STD || (type ==
206 VPBE_ENC_DV_TIMINGS && pclock <= 27000000))) {
207 vpss_enable_clock(VPSS_VENC_CLOCK_SEL, 1);
208 vpss_enable_clock(VPSS_VPBE_CLOCK, 1);
212 if (venc_type == VPBE_VERSION_3 && type == VPBE_ENC_STD)
213 vpss_enable_clock(VPSS_VENC_CLOCK_SEL, 0);
216 #define VDAC_CONFIG_SD_V3 0x0E21A6B6
217 #define VDAC_CONFIG_SD_V2 0x081141CF
221 static int venc_set_ntsc(struct v4l2_subdev *sd)
223 struct venc_state *venc = to_state(sd);
224 struct venc_platform_data *pdata = venc->pdata;
226 v4l2_dbg(debug, 2, sd, "venc_set_ntsc\n");
228 /* Setup clock at VPSS & VENC for SD */
229 vpss_enable_clock(VPSS_VENC_CLOCK_SEL, 1);
230 if (pdata->setup_clock(VPBE_ENC_STD, V4L2_STD_525_60) < 0)
233 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_STD, V4L2_STD_525_60);
234 venc_enabledigitaloutput(sd, 0);
236 if (venc->venc_type == VPBE_VERSION_3) {
237 venc_write(sd, VENC_CLKCTL, 0x01);
238 venc_write(sd, VENC_VIDCTL, 0);
239 vdaccfg_write(sd, VDAC_CONFIG_SD_V3);
240 } else if (venc->venc_type == VPBE_VERSION_2) {
241 venc_write(sd, VENC_CLKCTL, 0x01);
242 venc_write(sd, VENC_VIDCTL, 0);
243 vdaccfg_write(sd, VDAC_CONFIG_SD_V2);
245 /* to set VENC CLK DIV to 1 - final clock is 54 MHz */
246 venc_modify(sd, VENC_VIDCTL, 0, 1 << 1);
247 /* Set REC656 Mode */
248 venc_write(sd, VENC_YCCCTL, 0x1);
249 venc_modify(sd, VENC_VDPRO, 0, VENC_VDPRO_DAFRQ);
250 venc_modify(sd, VENC_VDPRO, 0, VENC_VDPRO_DAUPS);
253 venc_write(sd, VENC_VMOD, 0);
254 venc_modify(sd, VENC_VMOD, (1 << VENC_VMOD_VIE_SHIFT),
256 venc_modify(sd, VENC_VMOD, (0 << VENC_VMOD_VMD), VENC_VMOD_VMD);
257 venc_modify(sd, VENC_VMOD, (0 << VENC_VMOD_TVTYP_SHIFT),
259 venc_write(sd, VENC_DACTST, 0x0);
260 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
268 static int venc_set_pal(struct v4l2_subdev *sd)
270 struct venc_state *venc = to_state(sd);
272 v4l2_dbg(debug, 2, sd, "venc_set_pal\n");
274 /* Setup clock at VPSS & VENC for SD */
275 vpss_enable_clock(VPSS_VENC_CLOCK_SEL, 1);
276 if (venc->pdata->setup_clock(VPBE_ENC_STD, V4L2_STD_625_50) < 0)
279 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_STD, V4L2_STD_625_50);
280 venc_enabledigitaloutput(sd, 0);
282 if (venc->venc_type == VPBE_VERSION_3) {
283 venc_write(sd, VENC_CLKCTL, 0x1);
284 venc_write(sd, VENC_VIDCTL, 0);
285 vdaccfg_write(sd, VDAC_CONFIG_SD_V3);
286 } else if (venc->venc_type == VPBE_VERSION_2) {
287 venc_write(sd, VENC_CLKCTL, 0x1);
288 venc_write(sd, VENC_VIDCTL, 0);
289 vdaccfg_write(sd, VDAC_CONFIG_SD_V2);
291 /* to set VENC CLK DIV to 1 - final clock is 54 MHz */
292 venc_modify(sd, VENC_VIDCTL, 0, 1 << 1);
293 /* Set REC656 Mode */
294 venc_write(sd, VENC_YCCCTL, 0x1);
297 venc_modify(sd, VENC_SYNCCTL, 1 << VENC_SYNCCTL_OVD_SHIFT,
299 venc_write(sd, VENC_VMOD, 0);
300 venc_modify(sd, VENC_VMOD,
301 (1 << VENC_VMOD_VIE_SHIFT),
303 venc_modify(sd, VENC_VMOD,
304 (0 << VENC_VMOD_VMD), VENC_VMOD_VMD);
305 venc_modify(sd, VENC_VMOD,
306 (1 << VENC_VMOD_TVTYP_SHIFT),
308 venc_write(sd, VENC_DACTST, 0x0);
309 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
314 #define VDAC_CONFIG_HD_V2 0x081141EF
318 * This function configures the video encoder to EDTV(525p) component setting.
320 static int venc_set_480p59_94(struct v4l2_subdev *sd)
322 struct venc_state *venc = to_state(sd);
323 struct venc_platform_data *pdata = venc->pdata;
325 v4l2_dbg(debug, 2, sd, "venc_set_480p59_94\n");
326 if (venc->venc_type != VPBE_VERSION_1 &&
327 venc->venc_type != VPBE_VERSION_2)
330 /* Setup clock at VPSS & VENC for SD */
331 if (pdata->setup_clock(VPBE_ENC_DV_TIMINGS, 27000000) < 0)
334 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_DV_TIMINGS, 27000000);
335 venc_enabledigitaloutput(sd, 0);
337 if (venc->venc_type == VPBE_VERSION_2)
338 vdaccfg_write(sd, VDAC_CONFIG_HD_V2);
339 venc_write(sd, VENC_OSDCLK0, 0);
340 venc_write(sd, VENC_OSDCLK1, 1);
342 if (venc->venc_type == VPBE_VERSION_1) {
343 venc_modify(sd, VENC_VDPRO, VENC_VDPRO_DAFRQ,
345 venc_modify(sd, VENC_VDPRO, VENC_VDPRO_DAUPS,
349 venc_write(sd, VENC_VMOD, 0);
350 venc_modify(sd, VENC_VMOD, (1 << VENC_VMOD_VIE_SHIFT),
352 venc_modify(sd, VENC_VMOD, VENC_VMOD_HDMD, VENC_VMOD_HDMD);
353 venc_modify(sd, VENC_VMOD, (HDTV_525P << VENC_VMOD_TVTYP_SHIFT),
355 venc_modify(sd, VENC_VMOD, VENC_VMOD_VDMD_YCBCR8 <<
356 VENC_VMOD_VDMD_SHIFT, VENC_VMOD_VDMD);
358 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
366 * This function configures the video encoder to HDTV(625p) component setting
368 static int venc_set_576p50(struct v4l2_subdev *sd)
370 struct venc_state *venc = to_state(sd);
371 struct venc_platform_data *pdata = venc->pdata;
373 v4l2_dbg(debug, 2, sd, "venc_set_576p50\n");
375 if (venc->venc_type != VPBE_VERSION_1 &&
376 venc->venc_type != VPBE_VERSION_2)
378 /* Setup clock at VPSS & VENC for SD */
379 if (pdata->setup_clock(VPBE_ENC_DV_TIMINGS, 27000000) < 0)
382 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_DV_TIMINGS, 27000000);
383 venc_enabledigitaloutput(sd, 0);
385 if (venc->venc_type == VPBE_VERSION_2)
386 vdaccfg_write(sd, VDAC_CONFIG_HD_V2);
388 venc_write(sd, VENC_OSDCLK0, 0);
389 venc_write(sd, VENC_OSDCLK1, 1);
391 if (venc->venc_type == VPBE_VERSION_1) {
392 venc_modify(sd, VENC_VDPRO, VENC_VDPRO_DAFRQ,
394 venc_modify(sd, VENC_VDPRO, VENC_VDPRO_DAUPS,
398 venc_write(sd, VENC_VMOD, 0);
399 venc_modify(sd, VENC_VMOD, (1 << VENC_VMOD_VIE_SHIFT),
401 venc_modify(sd, VENC_VMOD, VENC_VMOD_HDMD, VENC_VMOD_HDMD);
402 venc_modify(sd, VENC_VMOD, (HDTV_625P << VENC_VMOD_TVTYP_SHIFT),
405 venc_modify(sd, VENC_VMOD, VENC_VMOD_VDMD_YCBCR8 <<
406 VENC_VMOD_VDMD_SHIFT, VENC_VMOD_VDMD);
407 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
413 * venc_set_720p60_internal - Setup 720p60 in venc for dm365 only
415 static int venc_set_720p60_internal(struct v4l2_subdev *sd)
417 struct venc_state *venc = to_state(sd);
418 struct venc_platform_data *pdata = venc->pdata;
420 if (pdata->setup_clock(VPBE_ENC_DV_TIMINGS, 74250000) < 0)
423 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_DV_TIMINGS, 74250000);
424 venc_enabledigitaloutput(sd, 0);
426 venc_write(sd, VENC_OSDCLK0, 0);
427 venc_write(sd, VENC_OSDCLK1, 1);
429 venc_write(sd, VENC_VMOD, 0);
430 /* DM365 component HD mode */
431 venc_modify(sd, VENC_VMOD, (1 << VENC_VMOD_VIE_SHIFT),
433 venc_modify(sd, VENC_VMOD, VENC_VMOD_HDMD, VENC_VMOD_HDMD);
434 venc_modify(sd, VENC_VMOD, (HDTV_720P << VENC_VMOD_TVTYP_SHIFT),
436 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
437 venc_write(sd, VENC_XHINTVL, 0);
442 * venc_set_1080i30_internal - Setup 1080i30 in venc for dm365 only
444 static int venc_set_1080i30_internal(struct v4l2_subdev *sd)
446 struct venc_state *venc = to_state(sd);
447 struct venc_platform_data *pdata = venc->pdata;
449 if (pdata->setup_clock(VPBE_ENC_DV_TIMINGS, 74250000) < 0)
452 venc_enable_vpss_clock(venc->venc_type, VPBE_ENC_DV_TIMINGS, 74250000);
453 venc_enabledigitaloutput(sd, 0);
455 venc_write(sd, VENC_OSDCLK0, 0);
456 venc_write(sd, VENC_OSDCLK1, 1);
459 venc_write(sd, VENC_VMOD, 0);
460 /* DM365 component HD mode */
461 venc_modify(sd, VENC_VMOD, (1 << VENC_VMOD_VIE_SHIFT),
463 venc_modify(sd, VENC_VMOD, VENC_VMOD_HDMD, VENC_VMOD_HDMD);
464 venc_modify(sd, VENC_VMOD, (HDTV_1080I << VENC_VMOD_TVTYP_SHIFT),
466 venc_modify(sd, VENC_VMOD, VENC_VMOD_VENC, VENC_VMOD_VENC);
467 venc_write(sd, VENC_XHINTVL, 0);
471 static int venc_s_std_output(struct v4l2_subdev *sd, v4l2_std_id norm)
473 v4l2_dbg(debug, 1, sd, "venc_s_std_output\n");
475 if (norm & V4L2_STD_525_60)
476 return venc_set_ntsc(sd);
477 else if (norm & V4L2_STD_625_50)
478 return venc_set_pal(sd);
483 static int venc_s_dv_timings(struct v4l2_subdev *sd,
484 struct v4l2_dv_timings *dv_timings)
486 struct venc_state *venc = to_state(sd);
487 u32 height = dv_timings->bt.height;
490 v4l2_dbg(debug, 1, sd, "venc_s_dv_timings\n");
493 return venc_set_576p50(sd);
494 else if (height == 480)
495 return venc_set_480p59_94(sd);
496 else if ((height == 720) &&
497 (venc->venc_type == VPBE_VERSION_2)) {
498 /* TBD setup internal 720p mode here */
499 ret = venc_set_720p60_internal(sd);
500 /* for DM365 VPBE, there is DAC inside */
501 vdaccfg_write(sd, VDAC_CONFIG_HD_V2);
503 } else if ((height == 1080) &&
504 (venc->venc_type == VPBE_VERSION_2)) {
505 /* TBD setup internal 1080i mode here */
506 ret = venc_set_1080i30_internal(sd);
507 /* for DM365 VPBE, there is DAC inside */
508 vdaccfg_write(sd, VDAC_CONFIG_HD_V2);
514 static int venc_s_routing(struct v4l2_subdev *sd, u32 input, u32 output,
517 struct venc_state *venc = to_state(sd);
520 v4l2_dbg(debug, 1, sd, "venc_s_routing\n");
522 ret = venc_set_dac(sd, output);
524 venc->output = output;
529 static long venc_ioctl(struct v4l2_subdev *sd,
537 val = venc_read(sd, VENC_VSTAT);
538 *((int *)arg) = ((val & VENC_VSTAT_FIDST) ==
542 v4l2_err(sd, "Wrong IOCTL cmd\n");
549 static const struct v4l2_subdev_core_ops venc_core_ops = {
553 static const struct v4l2_subdev_video_ops venc_video_ops = {
554 .s_routing = venc_s_routing,
555 .s_std_output = venc_s_std_output,
556 .s_dv_timings = venc_s_dv_timings,
559 static const struct v4l2_subdev_ops venc_ops = {
560 .core = &venc_core_ops,
561 .video = &venc_video_ops,
564 static int venc_initialize(struct v4l2_subdev *sd)
566 struct venc_state *venc = to_state(sd);
569 /* Set default to output to composite and std to NTSC */
571 venc->std = V4L2_STD_525_60;
573 ret = venc_s_routing(sd, 0, venc->output, 0);
575 v4l2_err(sd, "Error setting output during init\n");
579 ret = venc_s_std_output(sd, venc->std);
581 v4l2_err(sd, "Error setting std during init\n");
588 static int venc_device_get(struct device *dev, void *data)
590 struct platform_device *pdev = to_platform_device(dev);
591 struct venc_state **venc = data;
593 if (strstr(pdev->name, "vpbe-venc") != NULL)
594 *venc = platform_get_drvdata(pdev);
599 struct v4l2_subdev *venc_sub_dev_init(struct v4l2_device *v4l2_dev,
600 const char *venc_name)
602 struct venc_state *venc = NULL;
604 bus_for_each_dev(&platform_bus_type, NULL, &venc,
609 v4l2_subdev_init(&venc->sd, &venc_ops);
611 strscpy(venc->sd.name, venc_name, sizeof(venc->sd.name));
612 if (v4l2_device_register_subdev(v4l2_dev, &venc->sd) < 0) {
614 "vpbe unable to register venc sub device\n");
617 if (venc_initialize(&venc->sd)) {
619 "vpbe venc initialization failed\n");
625 EXPORT_SYMBOL(venc_sub_dev_init);
627 static int venc_probe(struct platform_device *pdev)
629 const struct platform_device_id *pdev_id;
630 struct venc_state *venc;
631 struct resource *res;
633 if (!pdev->dev.platform_data) {
634 dev_err(&pdev->dev, "No platform data for VENC sub device");
638 pdev_id = platform_get_device_id(pdev);
642 venc = devm_kzalloc(&pdev->dev, sizeof(struct venc_state), GFP_KERNEL);
646 venc->venc_type = pdev_id->driver_data;
647 venc->pdev = &pdev->dev;
648 venc->pdata = pdev->dev.platform_data;
650 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
652 venc->venc_base = devm_ioremap_resource(&pdev->dev, res);
653 if (IS_ERR(venc->venc_base))
654 return PTR_ERR(venc->venc_base);
656 if (venc->venc_type != VPBE_VERSION_1) {
657 res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
659 venc->vdaccfg_reg = devm_ioremap_resource(&pdev->dev, res);
660 if (IS_ERR(venc->vdaccfg_reg))
661 return PTR_ERR(venc->vdaccfg_reg);
663 spin_lock_init(&venc->lock);
664 platform_set_drvdata(pdev, venc);
665 dev_notice(venc->pdev, "VENC sub device probe success\n");
670 static int venc_remove(struct platform_device *pdev)
675 static struct platform_driver venc_driver = {
677 .remove = venc_remove,
681 .id_table = vpbe_venc_devtype
684 module_platform_driver(venc_driver);
686 MODULE_LICENSE("GPL");
687 MODULE_DESCRIPTION("VPBE VENC Driver");
688 MODULE_AUTHOR("Texas Instruments");