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 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 #include <linux/kernel.h>
18 #include <linux/init.h>
19 #include <linux/module.h>
20 #include <linux/errno.h>
22 #include <linux/string.h>
23 #include <linux/wait.h>
24 #include <linux/time.h>
25 #include <linux/platform_device.h>
27 #include <linux/slab.h>
28 #include <linux/clk.h>
29 #include <linux/err.h>
31 #include <media/v4l2-device.h>
32 #include <media/davinci/vpbe_types.h>
33 #include <media/davinci/vpbe.h>
34 #include <media/davinci/vpss.h>
35 #include <media/davinci/vpbe_venc.h>
37 #define VPBE_DEFAULT_OUTPUT "Composite"
38 #define VPBE_DEFAULT_MODE "ntsc"
40 static char *def_output = VPBE_DEFAULT_OUTPUT;
41 static char *def_mode = VPBE_DEFAULT_MODE;
44 module_param(def_output, charp, S_IRUGO);
45 module_param(def_mode, charp, S_IRUGO);
46 module_param(debug, int, 0644);
48 MODULE_PARM_DESC(def_output, "vpbe output name (default:Composite)");
49 MODULE_PARM_DESC(def_mode, "vpbe output mode name (default:ntsc");
50 MODULE_PARM_DESC(debug, "Debug level 0-1");
52 MODULE_DESCRIPTION("TI DMXXX VPBE Display controller");
53 MODULE_LICENSE("GPL");
54 MODULE_AUTHOR("Texas Instruments");
57 * vpbe_current_encoder_info - Get config info for current encoder
58 * @vpbe_dev - vpbe device ptr
60 * Return ptr to current encoder config info
62 static struct encoder_config_info*
63 vpbe_current_encoder_info(struct vpbe_device *vpbe_dev)
65 struct vpbe_config *cfg = vpbe_dev->cfg;
66 int index = vpbe_dev->current_sd_index;
68 return ((index == 0) ? &cfg->venc :
69 &cfg->ext_encoders[index-1]);
73 * vpbe_find_encoder_sd_index - Given a name find encoder sd index
75 * @vpbe_config - ptr to vpbe cfg
76 * @output_index - index used by application
78 * Return sd index of the encoder
80 static int vpbe_find_encoder_sd_index(struct vpbe_config *cfg,
83 char *encoder_name = cfg->outputs[index].subdev_name;
86 /* Venc is always first */
87 if (!strcmp(encoder_name, cfg->venc.module_name))
90 for (i = 0; i < cfg->num_ext_encoders; i++) {
91 if (!strcmp(encoder_name,
92 cfg->ext_encoders[i].module_name))
100 * vpbe_g_cropcap - Get crop capabilities of the display
101 * @vpbe_dev - vpbe device ptr
102 * @cropcap - cropcap is a ptr to struct v4l2_cropcap
104 * Update the crop capabilities in crop cap for current
107 static int vpbe_g_cropcap(struct vpbe_device *vpbe_dev,
108 struct v4l2_cropcap *cropcap)
112 cropcap->bounds.left = 0;
113 cropcap->bounds.top = 0;
114 cropcap->bounds.width = vpbe_dev->current_timings.xres;
115 cropcap->bounds.height = vpbe_dev->current_timings.yres;
116 cropcap->defrect = cropcap->bounds;
122 * vpbe_enum_outputs - enumerate outputs
123 * @vpbe_dev - vpbe device ptr
124 * @output - ptr to v4l2_output structure
126 * Enumerates the outputs available at the vpbe display
127 * returns the status, -EINVAL if end of output list
129 static int vpbe_enum_outputs(struct vpbe_device *vpbe_dev,
130 struct v4l2_output *output)
132 struct vpbe_config *cfg = vpbe_dev->cfg;
133 int temp_index = output->index;
135 if (temp_index >= cfg->num_outputs)
138 *output = cfg->outputs[temp_index].output;
139 output->index = temp_index;
144 static int vpbe_get_mode_info(struct vpbe_device *vpbe_dev, char *mode,
147 struct vpbe_config *cfg = vpbe_dev->cfg;
148 struct vpbe_enc_mode_info var;
149 int curr_output = output_index;
155 for (i = 0; i < cfg->outputs[curr_output].num_modes; i++) {
156 var = cfg->outputs[curr_output].modes[i];
157 if (!strcmp(mode, var.name)) {
158 vpbe_dev->current_timings = var;
166 static int vpbe_get_current_mode_info(struct vpbe_device *vpbe_dev,
167 struct vpbe_enc_mode_info *mode_info)
169 if (NULL == mode_info)
172 *mode_info = vpbe_dev->current_timings;
177 static int vpbe_get_dv_preset_info(struct vpbe_device *vpbe_dev,
178 unsigned int dv_preset)
180 struct vpbe_config *cfg = vpbe_dev->cfg;
181 struct vpbe_enc_mode_info var;
182 int curr_output = vpbe_dev->current_out_index;
185 for (i = 0; i < vpbe_dev->cfg->outputs[curr_output].num_modes; i++) {
186 var = cfg->outputs[curr_output].modes[i];
187 if ((var.timings_type & VPBE_ENC_DV_PRESET) &&
188 (var.timings.dv_preset == dv_preset)) {
189 vpbe_dev->current_timings = var;
197 /* Get std by std id */
198 static int vpbe_get_std_info(struct vpbe_device *vpbe_dev,
201 struct vpbe_config *cfg = vpbe_dev->cfg;
202 struct vpbe_enc_mode_info var;
203 int curr_output = vpbe_dev->current_out_index;
206 for (i = 0; i < vpbe_dev->cfg->outputs[curr_output].num_modes; i++) {
207 var = cfg->outputs[curr_output].modes[i];
208 if ((var.timings_type & VPBE_ENC_STD) &&
209 (var.timings.std_id & std_id)) {
210 vpbe_dev->current_timings = var;
218 static int vpbe_get_std_info_by_name(struct vpbe_device *vpbe_dev,
221 struct vpbe_config *cfg = vpbe_dev->cfg;
222 struct vpbe_enc_mode_info var;
223 int curr_output = vpbe_dev->current_out_index;
226 for (i = 0; i < vpbe_dev->cfg->outputs[curr_output].num_modes; i++) {
227 var = cfg->outputs[curr_output].modes[i];
228 if (!strcmp(var.name, std_name)) {
229 vpbe_dev->current_timings = var;
238 * vpbe_set_output - Set output
239 * @vpbe_dev - vpbe device ptr
240 * @index - index of output
242 * Set vpbe output to the output specified by the index
244 static int vpbe_set_output(struct vpbe_device *vpbe_dev, int index)
246 struct encoder_config_info *curr_enc_info =
247 vpbe_current_encoder_info(vpbe_dev);
248 struct vpbe_config *cfg = vpbe_dev->cfg;
249 struct venc_platform_data *venc_device = vpbe_dev->venc_device;
250 enum v4l2_mbus_pixelcode if_params;
255 if (index >= cfg->num_outputs)
258 mutex_lock(&vpbe_dev->lock);
260 sd_index = vpbe_dev->current_sd_index;
261 enc_out_index = cfg->outputs[index].output.index;
263 * Currently we switch the encoder based on output selected
264 * by the application. If media controller is implemented later
265 * there is will be an API added to setup_link between venc
266 * and external encoder. So in that case below comparison always
267 * match and encoder will not be switched. But if application
268 * chose not to use media controller, then this provides current
269 * way of switching encoder at the venc output.
271 if (strcmp(curr_enc_info->module_name,
272 cfg->outputs[index].subdev_name)) {
273 /* Need to switch the encoder at the output */
274 sd_index = vpbe_find_encoder_sd_index(cfg, index);
280 if_params = cfg->outputs[index].if_params;
281 venc_device->setup_if_config(if_params);
286 /* Set output at the encoder */
287 ret = v4l2_subdev_call(vpbe_dev->encoders[sd_index], video,
288 s_routing, 0, enc_out_index, 0);
293 * It is assumed that venc or extenal encoder will set a default
294 * mode in the sub device. For external encoder or LCD pannel output,
295 * we also need to set up the lcd port for the required mode. So setup
296 * the lcd port for the default mode that is configured in the board
297 * arch/arm/mach-davinci/board-dm355-evm.setup file for the external
300 ret = vpbe_get_mode_info(vpbe_dev,
301 cfg->outputs[index].default_mode, index);
303 struct osd_state *osd_device = vpbe_dev->osd_device;
305 osd_device->ops.set_left_margin(osd_device,
306 vpbe_dev->current_timings.left_margin);
307 osd_device->ops.set_top_margin(osd_device,
308 vpbe_dev->current_timings.upper_margin);
309 vpbe_dev->current_sd_index = sd_index;
310 vpbe_dev->current_out_index = index;
313 mutex_unlock(&vpbe_dev->lock);
317 static int vpbe_set_default_output(struct vpbe_device *vpbe_dev)
319 struct vpbe_config *cfg = vpbe_dev->cfg;
323 for (i = 0; i < cfg->num_outputs; i++) {
324 if (!strcmp(def_output,
325 cfg->outputs[i].output.name)) {
326 ret = vpbe_set_output(vpbe_dev, i);
328 vpbe_dev->current_out_index = i;
336 * vpbe_get_output - Get output
337 * @vpbe_dev - vpbe device ptr
339 * return current vpbe output to the the index
341 static unsigned int vpbe_get_output(struct vpbe_device *vpbe_dev)
343 return vpbe_dev->current_out_index;
347 * vpbe_s_dv_preset - Set the given preset timings in the encoder
349 * Sets the preset if supported by the current encoder. Return the status.
350 * 0 - success & -EINVAL on error
352 static int vpbe_s_dv_preset(struct vpbe_device *vpbe_dev,
353 struct v4l2_dv_preset *dv_preset)
355 struct vpbe_config *cfg = vpbe_dev->cfg;
356 int out_index = vpbe_dev->current_out_index;
357 int sd_index = vpbe_dev->current_sd_index;
361 if (!(cfg->outputs[out_index].output.capabilities &
362 V4L2_OUT_CAP_PRESETS))
365 ret = vpbe_get_dv_preset_info(vpbe_dev, dv_preset->preset);
370 mutex_lock(&vpbe_dev->lock);
373 ret = v4l2_subdev_call(vpbe_dev->encoders[sd_index], video,
374 s_dv_preset, dv_preset);
375 if (!ret && (vpbe_dev->amp != NULL)) {
376 /* Call amplifier subdevice */
377 ret = v4l2_subdev_call(vpbe_dev->amp, video,
378 s_dv_preset, dv_preset);
380 /* set the lcd controller output for the given mode */
382 struct osd_state *osd_device = vpbe_dev->osd_device;
384 osd_device->ops.set_left_margin(osd_device,
385 vpbe_dev->current_timings.left_margin);
386 osd_device->ops.set_top_margin(osd_device,
387 vpbe_dev->current_timings.upper_margin);
389 mutex_unlock(&vpbe_dev->lock);
395 * vpbe_g_dv_preset - Get the preset in the current encoder
397 * Get the preset in the current encoder. Return the status. 0 - success
400 static int vpbe_g_dv_preset(struct vpbe_device *vpbe_dev,
401 struct v4l2_dv_preset *dv_preset)
403 if (vpbe_dev->current_timings.timings_type &
404 VPBE_ENC_DV_PRESET) {
405 dv_preset->preset = vpbe_dev->current_timings.timings.dv_preset;
413 * vpbe_enum_dv_presets - Enumerate the dv presets in the current encoder
415 * Get the preset in the current encoder. Return the status. 0 - success
418 static int vpbe_enum_dv_presets(struct vpbe_device *vpbe_dev,
419 struct v4l2_dv_enum_preset *preset_info)
421 struct vpbe_config *cfg = vpbe_dev->cfg;
422 int out_index = vpbe_dev->current_out_index;
423 struct vpbe_output *output = &cfg->outputs[out_index];
427 if (!(output->output.capabilities & V4L2_OUT_CAP_PRESETS))
430 for (i = 0; i < output->num_modes; i++) {
431 if (output->modes[i].timings_type == VPBE_ENC_DV_PRESET) {
432 if (j == preset_info->index)
438 if (i == output->num_modes)
441 return v4l_fill_dv_preset_info(output->modes[i].timings.dv_preset,
446 * vpbe_s_std - Set the given standard in the encoder
448 * Sets the standard if supported by the current encoder. Return the status.
449 * 0 - success & -EINVAL on error
451 static int vpbe_s_std(struct vpbe_device *vpbe_dev, v4l2_std_id *std_id)
453 struct vpbe_config *cfg = vpbe_dev->cfg;
454 int out_index = vpbe_dev->current_out_index;
455 int sd_index = vpbe_dev->current_sd_index;
458 if (!(cfg->outputs[out_index].output.capabilities &
462 ret = vpbe_get_std_info(vpbe_dev, *std_id);
466 mutex_lock(&vpbe_dev->lock);
468 ret = v4l2_subdev_call(vpbe_dev->encoders[sd_index], video,
469 s_std_output, *std_id);
470 /* set the lcd controller output for the given mode */
472 struct osd_state *osd_device = vpbe_dev->osd_device;
474 osd_device->ops.set_left_margin(osd_device,
475 vpbe_dev->current_timings.left_margin);
476 osd_device->ops.set_top_margin(osd_device,
477 vpbe_dev->current_timings.upper_margin);
479 mutex_unlock(&vpbe_dev->lock);
485 * vpbe_g_std - Get the standard in the current encoder
487 * Get the standard in the current encoder. Return the status. 0 - success
490 static int vpbe_g_std(struct vpbe_device *vpbe_dev, v4l2_std_id *std_id)
492 struct vpbe_enc_mode_info cur_timings = vpbe_dev->current_timings;
494 if (cur_timings.timings_type & VPBE_ENC_STD) {
495 *std_id = cur_timings.timings.std_id;
503 * vpbe_set_mode - Set mode in the current encoder using mode info
505 * Use the mode string to decide what timings to set in the encoder
506 * This is typically useful when fbset command is used to change the current
507 * timings by specifying a string to indicate the timings.
509 static int vpbe_set_mode(struct vpbe_device *vpbe_dev,
510 struct vpbe_enc_mode_info *mode_info)
512 struct vpbe_enc_mode_info *preset_mode = NULL;
513 struct vpbe_config *cfg = vpbe_dev->cfg;
514 struct v4l2_dv_preset dv_preset;
515 struct osd_state *osd_device;
516 int out_index = vpbe_dev->current_out_index;
520 if ((NULL == mode_info) || (NULL == mode_info->name))
523 for (i = 0; i < cfg->outputs[out_index].num_modes; i++) {
524 if (!strcmp(mode_info->name,
525 cfg->outputs[out_index].modes[i].name)) {
526 preset_mode = &cfg->outputs[out_index].modes[i];
528 * it may be one of the 3 timings type. Check and
531 if (preset_mode->timings_type & VPBE_ENC_STD)
532 return vpbe_s_std(vpbe_dev,
533 &preset_mode->timings.std_id);
534 if (preset_mode->timings_type & VPBE_ENC_DV_PRESET) {
536 preset_mode->timings.dv_preset;
537 return vpbe_s_dv_preset(vpbe_dev, &dv_preset);
542 /* Only custom timing should reach here */
543 if (preset_mode == NULL)
546 mutex_lock(&vpbe_dev->lock);
548 osd_device = vpbe_dev->osd_device;
549 vpbe_dev->current_timings = *preset_mode;
550 osd_device->ops.set_left_margin(osd_device,
551 vpbe_dev->current_timings.left_margin);
552 osd_device->ops.set_top_margin(osd_device,
553 vpbe_dev->current_timings.upper_margin);
555 mutex_unlock(&vpbe_dev->lock);
560 static int vpbe_set_default_mode(struct vpbe_device *vpbe_dev)
564 ret = vpbe_get_std_info_by_name(vpbe_dev, def_mode);
568 /* set the default mode in the encoder */
569 return vpbe_set_mode(vpbe_dev, &vpbe_dev->current_timings);
572 static int platform_device_get(struct device *dev, void *data)
574 struct platform_device *pdev = to_platform_device(dev);
575 struct vpbe_device *vpbe_dev = data;
577 if (strcmp("vpbe-osd", pdev->name) == 0)
578 vpbe_dev->osd_device = platform_get_drvdata(pdev);
579 if (strcmp("vpbe-venc", pdev->name) == 0)
580 vpbe_dev->venc_device = dev_get_platdata(&pdev->dev);
586 * vpbe_initialize() - Initialize the vpbe display controller
587 * @vpbe_dev - vpbe device ptr
589 * Master frame buffer device drivers calls this to initialize vpbe
590 * display controller. This will then registers v4l2 device and the sub
591 * devices and sets a current encoder sub device for display. v4l2 display
592 * device driver is the master and frame buffer display device driver is
593 * the slave. Frame buffer display driver checks the initialized during
594 * probe and exit if not initialized. Returns status.
596 static int vpbe_initialize(struct device *dev, struct vpbe_device *vpbe_dev)
598 struct encoder_config_info *enc_info;
599 struct amp_config_info *amp_info;
600 struct v4l2_subdev **enc_subdev;
601 struct osd_state *osd_device;
602 struct i2c_adapter *i2c_adap;
610 * v4l2 abd FBDev frame buffer devices will get the vpbe_dev pointer
611 * from the platform device by iteration of platform drivers and
612 * matching with device name
614 if (NULL == vpbe_dev || NULL == dev) {
615 printk(KERN_ERR "Null device pointers.\n");
619 if (vpbe_dev->initialized)
622 mutex_lock(&vpbe_dev->lock);
624 if (strcmp(vpbe_dev->cfg->module_name, "dm644x-vpbe-display") != 0) {
625 /* We have dac clock available for platform */
626 vpbe_dev->dac_clk = clk_get(vpbe_dev->pdev, "vpss_dac");
627 if (IS_ERR(vpbe_dev->dac_clk)) {
628 ret = PTR_ERR(vpbe_dev->dac_clk);
631 if (clk_enable(vpbe_dev->dac_clk)) {
637 /* first enable vpss clocks */
638 vpss_enable_clock(VPSS_VPBE_CLOCK, 1);
640 /* First register a v4l2 device */
641 ret = v4l2_device_register(dev, &vpbe_dev->v4l2_dev);
643 v4l2_err(dev->driver,
644 "Unable to register v4l2 device.\n");
645 goto vpbe_fail_clock;
647 v4l2_info(&vpbe_dev->v4l2_dev, "vpbe v4l2 device registered\n");
649 err = bus_for_each_dev(&platform_bus_type, NULL, vpbe_dev,
650 platform_device_get);
654 vpbe_dev->venc = venc_sub_dev_init(&vpbe_dev->v4l2_dev,
655 vpbe_dev->cfg->venc.module_name);
656 /* register venc sub device */
657 if (vpbe_dev->venc == NULL) {
658 v4l2_err(&vpbe_dev->v4l2_dev,
659 "vpbe unable to init venc sub device\n");
661 goto vpbe_fail_v4l2_device;
663 /* initialize osd device */
664 osd_device = vpbe_dev->osd_device;
666 if (NULL != osd_device->ops.initialize) {
667 err = osd_device->ops.initialize(osd_device);
669 v4l2_err(&vpbe_dev->v4l2_dev,
670 "unable to initialize the OSD device");
672 goto vpbe_fail_v4l2_device;
677 * Register any external encoders that are configured. At index 0 we
678 * store venc sd index.
680 num_encoders = vpbe_dev->cfg->num_ext_encoders + 1;
681 vpbe_dev->encoders = kmalloc(
682 sizeof(struct v4l2_subdev *)*num_encoders,
684 if (NULL == vpbe_dev->encoders) {
685 v4l2_err(&vpbe_dev->v4l2_dev,
686 "unable to allocate memory for encoders sub devices");
688 goto vpbe_fail_v4l2_device;
691 i2c_adap = i2c_get_adapter(vpbe_dev->cfg->i2c_adapter_id);
692 for (i = 0; i < (vpbe_dev->cfg->num_ext_encoders + 1); i++) {
694 /* venc is at index 0 */
695 enc_subdev = &vpbe_dev->encoders[i];
696 *enc_subdev = vpbe_dev->venc;
699 enc_info = &vpbe_dev->cfg->ext_encoders[i];
700 if (enc_info->is_i2c) {
701 enc_subdev = &vpbe_dev->encoders[i];
702 *enc_subdev = v4l2_i2c_new_subdev_board(
703 &vpbe_dev->v4l2_dev, i2c_adap,
704 &enc_info->board_info, NULL);
706 v4l2_info(&vpbe_dev->v4l2_dev,
707 "v4l2 sub device %s registered\n",
708 enc_info->module_name);
710 v4l2_err(&vpbe_dev->v4l2_dev, "encoder %s"
711 " failed to register",
712 enc_info->module_name);
714 goto vpbe_fail_sd_register;
717 v4l2_warn(&vpbe_dev->v4l2_dev, "non-i2c encoders"
718 " currently not supported");
720 /* Add amplifier subdevice for dm365 */
721 if ((strcmp(vpbe_dev->cfg->module_name, "dm365-vpbe-display") == 0) &&
722 vpbe_dev->cfg->amp != NULL) {
723 amp_info = vpbe_dev->cfg->amp;
724 if (amp_info->is_i2c) {
725 vpbe_dev->amp = v4l2_i2c_new_subdev_board(
726 &vpbe_dev->v4l2_dev, i2c_adap,
727 &_info->board_info, NULL);
728 if (!vpbe_dev->amp) {
729 v4l2_err(&vpbe_dev->v4l2_dev,
730 "amplifier %s failed to register",
731 amp_info->module_name);
733 goto vpbe_fail_amp_register;
735 v4l2_info(&vpbe_dev->v4l2_dev,
736 "v4l2 sub device %s registered\n",
737 amp_info->module_name);
739 vpbe_dev->amp = NULL;
740 v4l2_warn(&vpbe_dev->v4l2_dev, "non-i2c amplifiers"
741 " currently not supported");
744 vpbe_dev->amp = NULL;
747 /* set the current encoder and output to that of venc by default */
748 vpbe_dev->current_sd_index = 0;
749 vpbe_dev->current_out_index = 0;
752 mutex_unlock(&vpbe_dev->lock);
754 printk(KERN_NOTICE "Setting default output to %s\n", def_output);
755 ret = vpbe_set_default_output(vpbe_dev);
757 v4l2_err(&vpbe_dev->v4l2_dev, "Failed to set default output %s",
762 printk(KERN_NOTICE "Setting default mode to %s\n", def_mode);
763 ret = vpbe_set_default_mode(vpbe_dev);
765 v4l2_err(&vpbe_dev->v4l2_dev, "Failed to set default mode %s",
769 vpbe_dev->initialized = 1;
770 /* TBD handling of bootargs for default output and mode */
773 vpbe_fail_amp_register:
774 kfree(vpbe_dev->amp);
775 vpbe_fail_sd_register:
776 kfree(vpbe_dev->encoders);
777 vpbe_fail_v4l2_device:
778 v4l2_device_unregister(&vpbe_dev->v4l2_dev);
780 if (strcmp(vpbe_dev->cfg->module_name, "dm644x-vpbe-display") != 0)
781 clk_put(vpbe_dev->dac_clk);
783 mutex_unlock(&vpbe_dev->lock);
788 * vpbe_deinitialize() - de-initialize the vpbe display controller
789 * @dev - Master and slave device ptr
791 * vpbe_master and slave frame buffer devices calls this to de-initialize
792 * the display controller. It is called when master and slave device
793 * driver modules are removed and no longer requires the display controller.
795 static void vpbe_deinitialize(struct device *dev, struct vpbe_device *vpbe_dev)
797 v4l2_device_unregister(&vpbe_dev->v4l2_dev);
798 if (strcmp(vpbe_dev->cfg->module_name, "dm644x-vpbe-display") != 0)
799 clk_put(vpbe_dev->dac_clk);
801 kfree(vpbe_dev->amp);
802 kfree(vpbe_dev->encoders);
803 vpbe_dev->initialized = 0;
804 /* disable vpss clocks */
805 vpss_enable_clock(VPSS_VPBE_CLOCK, 0);
808 static struct vpbe_device_ops vpbe_dev_ops = {
809 .g_cropcap = vpbe_g_cropcap,
810 .enum_outputs = vpbe_enum_outputs,
811 .set_output = vpbe_set_output,
812 .get_output = vpbe_get_output,
813 .s_dv_preset = vpbe_s_dv_preset,
814 .g_dv_preset = vpbe_g_dv_preset,
815 .enum_dv_presets = vpbe_enum_dv_presets,
818 .initialize = vpbe_initialize,
819 .deinitialize = vpbe_deinitialize,
820 .get_mode_info = vpbe_get_current_mode_info,
821 .set_mode = vpbe_set_mode,
824 static __devinit int vpbe_probe(struct platform_device *pdev)
826 struct vpbe_device *vpbe_dev;
827 struct vpbe_config *cfg;
830 if (pdev->dev.platform_data == NULL) {
831 v4l2_err(pdev->dev.driver, "No platform data\n");
834 cfg = pdev->dev.platform_data;
836 if (!cfg->module_name[0] ||
837 !cfg->osd.module_name[0] ||
838 !cfg->venc.module_name[0]) {
839 v4l2_err(pdev->dev.driver, "vpbe display module names not"
844 vpbe_dev = kzalloc(sizeof(*vpbe_dev), GFP_KERNEL);
845 if (vpbe_dev == NULL) {
846 v4l2_err(pdev->dev.driver, "Unable to allocate memory"
847 " for vpbe_device\n");
851 vpbe_dev->ops = vpbe_dev_ops;
852 vpbe_dev->pdev = &pdev->dev;
854 if (cfg->outputs->num_modes > 0)
855 vpbe_dev->current_timings = vpbe_dev->cfg->outputs[0].modes[0];
861 /* set the driver data in platform device */
862 platform_set_drvdata(pdev, vpbe_dev);
863 mutex_init(&vpbe_dev->lock);
868 static int vpbe_remove(struct platform_device *device)
870 struct vpbe_device *vpbe_dev = platform_get_drvdata(device);
877 static struct platform_driver vpbe_driver = {
879 .name = "vpbe_controller",
880 .owner = THIS_MODULE,
883 .remove = vpbe_remove,
886 module_platform_driver(vpbe_driver);