/**
* prev_do_preview - Performs the Preview process
* @device: Structure containing ISP preview wrapper global information
* @arg: Currently not used
*
* Returns 0 if successful, or -EINVAL if the sent parameters are invalid.
**/
static int prev_do_preview(struct prev_device *device, int *arg)
{
int bpp, size;
int ret = 0;
u32 out_hsize, out_vsize, out_line_offset;
dev_dbg(prev_dev, "prev_do_preview E\n");
if (!device) {
dev_err(prev_dev, "preview: invalid parameters\n");
return -EINVAL;
}
previewer_set_isp_ctrl();
if (device->params->size_params.pixsize == PREV_INWIDTH_8BIT)
bpp = 1;
else
bpp = 2;
size = device->params->size_params.hsize *
device->params->size_params.vsize * bpp;
isppreview_config_datapath(PRV_RAW_MEM, PREVIEW_MEM);
isppreview_try_size(device->params->size_params.hsize,
device->params->size_params.vsize,
&out_hsize,
&out_vsize);
ret = isppreview_config_inlineoffset(device->params->size_params.hsize
* bpp);
if (ret)
goto out;
out_line_offset = (out_hsize * bpp) & PREV_32BYTES_ALIGN_MASK;
ret = isppreview_config_outlineoffset(out_line_offset);
if (ret)
goto out;
ret = isppreview_config_size(device->params->size_params.hsize,
device->params->size_params.vsize,
out_hsize, out_vsize);
device->params->drkf_params.addr = device->isp_addr_lsc;
prev_hw_setup(device->params);
ret = isppreview_set_inaddr(device->isp_addr_read);
if (ret)
goto out;
ret = isppreview_set_outaddr(device->isp_addr_read);
if (ret)
goto out;
ret = isp_set_callback(CBK_PREV_DONE, preview_isr, (void *)device,
(void *)NULL);
if (ret) {
dev_err(prev_dev, "ERROR while setting Previewer callback!\n");
goto out;
}
isppreview_enable(1);
wait_for_completion_interruptible(&device->wfc);
ret = isp_unset_callback(CBK_PREV_DONE);
dev_dbg(prev_dev, "prev_do_preview L\n");
out:
return ret;
}
int isp_process_mem_data(struct isp_mem_data *data)
{
int i;
int ret = -1;
struct isp_mem_data *ppreview_user = \
(struct isp_mem_data *)data;
struct isp_mem_data preview_param;
u32 input_buffer_size, output_buffer_size;
u32 input_nr_pages, output_nr_pages;
struct page **input_pages = NULL;
struct page **output_pages = NULL;
unsigned long isp_addr_in = 0;
unsigned long isp_addr_out = 0;
unsigned long isp_addr_tmp = 0;
unsigned long timeout;
struct isp_mem_resize_data resizer_param;
u16 cropadjust = 0;
if (ppreview_user == NULL) {
printk(KERN_ERR "ISP_PROC_ERR: Invalid user data!\n");
return -EINVAL;
}
memcpy(&preview_param, ppreview_user, \
sizeof(struct isp_mem_data));
DPRINTK_ISPPROC("input(%d-%d) - output(%d-%d)\n",
preview_param.input_width,
preview_param.input_height,
preview_param.output_width,
preview_param.output_height);
DPRINTK_ISPPROC("start(%d-%d) - end(%d-%d)\n",
preview_param.left,
preview_param.top,
preview_param.crop_width,
preview_param.crop_height);
if (ppreview_user->datain == 0 || ppreview_user->dataout == 0)
return -EINVAL;
isppreview_enable(0);
ispresizer_enable(0);
timeout = jiffies + msecs_to_jiffies(200);
while (isppreview_busy() ||
ispresizer_busy()) {
if (time_after(jiffies, timeout))
return -EINVAL;
msleep(1);
}
isppreview_save_context();
ispresizer_save_context();
isppreview_free();
ispresizer_free();
isppreview_request();
ispresizer_request();
/* set data path before configuring modules. */
isppreview_update_datapath(PRV_RAW_MEM, PREVIEW_MEM);
ispresizer_config_datapath(RSZ_MEM_YUV, 0);
ret = isppreview_try_size(preview_param.input_width,
preview_param.input_height,
&preview_param.output_width,
&preview_param.output_height);
if (ret < 0)
goto exit_cleanup;
ret = isppreview_config_size(preview_param.input_width,
preview_param.input_height,
preview_param.output_width,
preview_param.output_height);
if (ret < 0)
goto exit_cleanup;
input_buffer_size = ALIGN_TO(ppreview_user->input_width* \
ppreview_user->input_height*2 , 0x100);
input_pages = map_user_memory_to_kernel(preview_param.datain,
input_buffer_size, &input_nr_pages);
if (input_pages == NULL) {
ret = -EINVAL;
printk(KERN_ERR "ISP_PROC_ERR: memory allocation failed\n");
goto exit_cleanup;
}
output_buffer_size = ALIGN_TO(ppreview_user->output_width* \
ppreview_user->output_height*2, 0x1000);
output_pages = map_user_memory_to_kernel(preview_param.dataout,
output_buffer_size, &output_nr_pages);
if (output_pages == NULL) {
ret = -EINVAL;
printk(KERN_ERR "ISP_PROC_ERR: memory allocation failed\n");
goto exit_cleanup;
}
for (i = 0; i < output_nr_pages; ++i)
flush_dcache_page(output_pages[i]);
isp_addr_in = ispmmu_vmap_pages(input_pages, input_nr_pages);
if (IS_ERR((void *)isp_addr_in)) {
isp_addr_in = 0;
ret = -EINVAL;
printk(KERN_ERR "ISP_PROC_ERR: isp mmu map failed\n");
goto exit_cleanup;
}
isp_addr_out = ispmmu_vmap_pages(output_pages, output_nr_pages);
if (IS_ERR((void *)isp_addr_out)) {
isp_addr_out = 0;
ret = -EINVAL;
printk(KERN_ERR "ISP_PROC_ERR: isp mmu map failed\n");
goto exit_cleanup;
}
/* This buffer must be allocated and mapped to
the ISP MMU previously. */
isp_addr_tmp = isp_tmp_buf_addr();
if (isp_addr_tmp == 0) {
printk(KERN_ERR "ISP_PROC_ERR: Invalid isp tmp buffer address!\n");
goto exit_cleanup;
}
isppreview_config_inlineoffset(ppreview_user->input_width * 2);
isppreview_set_inaddr(isp_addr_in);
isppreview_set_outaddr(isp_addr_tmp);
resizer_param.input_width = preview_param.output_width;
resizer_param.input_height = preview_param.output_height;
resizer_param.output_width = ppreview_user->output_width;
resizer_param.output_height = ppreview_user->output_height;
if ((preview_param.left == 0) && (preview_param.top == 0)) {
ret = ispresizer_try_size(&resizer_param.input_width,
&resizer_param.input_height,
&resizer_param.output_width,
&resizer_param.output_height);
if (ret < 0)
goto exit_cleanup;
ret = ispresizer_config_size(resizer_param.input_width,
resizer_param.input_height,
resizer_param.output_width,
resizer_param.output_height);
if (ret < 0)
goto exit_cleanup;
ispresizer_set_inaddr(isp_addr_tmp);
} else {
ispresizer_trycrop(preview_param.left,
preview_param.top,
preview_param.crop_width,
preview_param.crop_height,
resizer_param.output_width,
resizer_param.output_height);
ispresizer_applycrop();
/* account for pixel loss when using crop*/
if ((preview_param.input_height > preview_param.output_height)
&& (preview_param.top > 16))
cropadjust = 8;
else
cropadjust = 0;
/* pixel alignment in 32bit space, vertical must be 0 per TRM */
isp_reg_writel(((preview_param.left%16) <<
ISPRSZ_IN_START_HORZ_ST_SHIFT) |
(0 <<
ISPRSZ_IN_START_VERT_ST_SHIFT),
OMAP3_ISP_IOMEM_RESZ,
ISPRSZ_IN_START);
/* Align input address for cropping, per TRM */
ispresizer_set_inaddr(isp_addr_tmp -
(resizer_param.input_width*2*cropadjust) +
(preview_param.top*resizer_param.input_width*2)
+ ((preview_param.left/16)*32));
}
ispresizer_set_outaddr(isp_addr_out);
ispresizer_config_inlineoffset(
ALIGN_TO(resizer_param.input_width*2, 32));
if (isp_set_callback(CBK_PREV_DONE, prv_isr,
(void *) NULL, (void *)NULL) != 0) {
printk(KERN_ERR "ISP_PROC_ERR: Error setting PRV callback.\n");
goto exit_cleanup;
}
if (isp_set_callback(CBK_RESZ_DONE, rsz_isr,
(void *) NULL, (void *)NULL) != 0) {
printk(KERN_ERR "ISP_PROC_ERR: Error setting RSZ callback.\n");
goto exit_cleanup;
}
isp_reg_writel(0xFFFFFFFF, OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS);
isp_wfc.done = 0;
/* start preview engine. */
isppreview_enable(1);
ret = wait_for_completion_timeout(&isp_wfc, msecs_to_jiffies(1000));
if (!ret) {
isppreview_enable(0);
ispresizer_enable(0);
}
timeout = jiffies + msecs_to_jiffies(50);
while (ispresizer_busy()) {
msleep(5);
if (time_after(jiffies, timeout)) {
printk(KERN_ERR "ISP_RESZ_ERR: Resizer still busy");
break;
}
}
isp_reg_writel(0xFFFFFFFF, OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS);
isp_unset_callback(CBK_PREV_DONE);
isp_unset_callback(CBK_RESZ_DONE);
exit_cleanup:
isppreview_restore_context();
ispresizer_restore_context();
if (isp_addr_in != 0)
ispmmu_vunmap(isp_addr_in);
if (isp_addr_out != 0)
ispmmu_vunmap(isp_addr_out);
if (input_pages != NULL) {
unmap_user_memory_from_kernel(input_pages, input_nr_pages);
kfree(input_pages);
}
if (output_pages != NULL) {
unmap_user_memory_from_kernel(output_pages, output_nr_pages);
kfree(output_pages);
}
DPRINTK_ISPPROC("exit.\n");
return ret;
}
