int register_tx_isp_vic_device(struct platform_device *pdev, struct v4l2_device *v4l2_dev)
{
struct tx_isp_subdev_platform_data *pdata = pdev->dev.platform_data;
struct tx_isp_vic_driver *vsd = NULL;
struct resource *res = NULL;
struct v4l2_subdev *sd = NULL;
struct media_pad *pads = NULL;
struct media_entity *me = NULL;
struct proc_dir_entry *proc;
int ret;
if(!pdata){
v4l2_err(v4l2_dev, "The platform_data of csi is NULL!\n");
ret = -ISP_ERROR;
goto exit;
};
vsd = (struct tx_isp_vic_driver *)kzalloc(sizeof(*vsd), GFP_KERNEL);
if(!vsd){
v4l2_err(v4l2_dev, "Failed to allocate sensor device\n");
ret = -ISP_ERROR;
goto exit;
}
vsd->pdata = pdata;
vsd->dev = &pdev->dev;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if(res){
res = request_mem_region(res->start,
res->end - res->start + 1, dev_name(&pdev->dev));
if (!res) {
v4l2_err(v4l2_dev, "Not enough memory for resources\n");
ret = -EBUSY;
goto mem_region_failed;
}
vsd->base = ioremap(res->start, res->end - res->start + 1);
if (!vsd->base) {
v4l2_err(v4l2_dev, "Unable to ioremap registers!\n");
ret = -ENXIO;
goto ioremap_failed;
}
}
vsd->res = res;
sd = &vsd->sd;
pads = vsd->pads;
me = &sd->entity;
v4l2_subdev_init(sd, &vic_subdev_ops);
strlcpy(sd->name, "TX-ISP-VIC-SUBDEV ", sizeof(sd->name));
sd->grp_id = pdata->grp_id ; /* group ID for isp subdevs */
v4l2_set_subdevdata(sd, vsd);
pads[TX_ISP_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
pads[TX_ISP_PAD_LINK].flags = MEDIA_PAD_FL_SINK;
me->ops = &vic_media_ops;
// me->parent = v4l2_dev->mdev;
ret = media_entity_init(me, TX_ISP_PADS_NUM, pads, 0);
if (ret < 0){
v4l2_err(v4l2_dev, "Failed to init media entity!\n");
ret = -ISP_ERROR;
goto entity_init_failed;
}
ret = v4l2_device_register_subdev(v4l2_dev, sd);
if (ret < 0){
v4l2_err(v4l2_dev, "Failed to register vic-subdev!\n");
ret = -ISP_ERROR;
goto register_failed;
}
ret = isp_vic_init_clk(vsd);
if(ret < 0){
v4l2_err(v4l2_dev, "Failed to init isp's clks!\n");
ret = -ISP_ERROR;
}
dump_vsd=vsd;
/* creat the node of printing isp info */
proc = jz_proc_mkdir("vic");
if (!proc) {
vsd->proc_vic = NULL;
v4l2_err(v4l2_dev, "create dev_attr_isp_info failed!\n");
} else {
vsd->proc_vic = proc;
}
proc_create_data("isp_vic_frd", S_IRUGO, proc, &isp_vic_frd_fops, (void *)vsd);
return ISP_SUCCESS;
register_failed:
media_entity_cleanup(me);
entity_init_failed:
if(vsd->base)
iounmap(vsd->base);
ioremap_failed:
if(res)
release_mem_region(res->start,res->end - res->start + 1);
mem_region_failed:
kfree(vsd);
exit:
return ret;
}
/*
* /proc/jz/xxx entry
*
*/
static int __init jz_proc_init(void)
{
struct proc_dir_entry *res;
struct proc_dir_entry *jz_proc;
unsigned int virt_addr, i;
#ifndef CONFIG_USE_JZ_ROOT_DIR
jz_proc = jz_proc_mkdir("mem");
#else
jz_proc = get_jz_proc_root();
#endif
/*
* Reserve a 16MB memory for IPU on JZ.
*/
jz_imem_base = (unsigned int)__get_free_pages(GFP_KERNEL, IMEM_MAX_ORDER);
if (jz_imem_base) {
/* imem (IPU memory management) */
res = create_proc_entry("imem", 0644, jz_proc);
if (res) {
res->read_proc = imem_read_proc;
res->write_proc = imem_write_proc;
res->data = NULL;
}
/* Set page reserved */
virt_addr = jz_imem_base;
for (i = 0; i < (1 << IMEM_MAX_ORDER); i++) {
SetPageReserved(virt_to_page((void *)virt_addr));
virt_addr += PAGE_SIZE;
}
/* Convert to physical address */
jz_imem_base = virt_to_phys((void *)jz_imem_base);
printk("Total %dMB memory at 0x%x was reserved for IPU\n",
(unsigned int)((1 << IMEM_MAX_ORDER) * PAGE_SIZE)/1000000, jz_imem_base);
}
else
printk("NOT enough memory for imem\n");
jz_imem1_base = (unsigned int)__get_free_pages(GFP_KERNEL, IMEM1_MAX_ORDER);
if (jz_imem1_base) {
/* imem (IPU memory management) */
res = create_proc_entry("imem1", 0644, jz_proc);
if (res) {
res->read_proc = imem1_read_proc;
res->write_proc = imem1_write_proc;
res->data = NULL;
}
/* Set page reserved */
virt_addr = jz_imem1_base;
for (i = 0; i < (1 << IMEM1_MAX_ORDER); i++) {
SetPageReserved(virt_to_page((void *)virt_addr));
virt_addr += PAGE_SIZE;
}
/* Convert to physical address */
jz_imem1_base = virt_to_phys((void *)jz_imem1_base);
printk("Total %dMB memory1 at 0x%x was reserved for IPU\n",
(unsigned int)((1 << IMEM1_MAX_ORDER) * PAGE_SIZE)/1000000, jz_imem1_base);
}
else
printk("NOT enough memory for imem1\n");
return 0;
}