/** * previewer_release - Releases Preview Wrapper and frees up allocated memory * @inode: Inode structure associated with the Preview Wrapper * @filp: File structure associated with the Preview Wrapper * * Always returns 0. **/ static int previewer_release(struct inode *inode, struct file *filp) { struct prev_fh *fh = filp->private_data; struct prev_device *device = fh->device; struct videobuf_queue *q1 = &fh->inout_vbq; struct videobuf_queue *q2 = &fh->lsc_vbq; device->opened = 0; device->params = NULL; isppreview_free(); isp_put(); videobuf_mmap_free(q1); videobuf_mmap_free(q2); prev_bufsize = 0; lsc_bufsize = 0; filp->private_data = NULL; kfree(fh); dev_dbg(prev_dev, "previewer_release\n"); return 0; }
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; }