Merge "msm: vidc: add debugfs support for dynamic buffer mode" (c3ccacdd) · Commits · e / devices / android_kernel_sony_msm8994

drivers/media/platform/msm/vidc/msm_vidc_debug.c

+50 −0

Original line number	Diff line number	Diff line
		@@ -36,6 +36,10 @@ static struct debug_buffer dbg_buf;
		__buf.filled_size = 0; \
		})

		#define DYNAMIC_BUF_OWNER(__binfo) ({ \
		atomic_read(&__binfo->ref_count) == 2 ? "video driver" : "firmware";\
		})

		static int core_info_open(struct inode inode, struct file file)
		{
		file->private_data = inode->i_private;
		@@ -193,6 +197,37 @@ static int inst_info_open(struct inode inode, struct file file)
		return 0;
		}

		static int publish_unreleased_reference(struct msm_vidc_inst *inst)
		{
		struct buffer_info *temp = NULL;
		struct buffer_info *dummy = NULL;
		struct list_head *list = NULL;

		if (!inst) {
		dprintk(VIDC_ERR, "%s: invalid param\n", __func__);
		return -EINVAL;
		}

		list = &inst->registered_bufs;
		mutex_lock(&inst->lock);
		if (inst->buffer_mode_set[CAPTURE_PORT] == HAL_BUFFER_MODE_DYNAMIC) {
		list_for_each_entry_safe(temp, dummy, list, list) {
		if (temp && temp->type ==
		V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
		!temp->inactive && atomic_read(&temp->ref_count)) {
		write_str(&dbg_buf,
		"\tpending buffer: 0x%x fd[0] = %d ref_count = %d held by: %s\n",
		temp->device_addr[0],
		temp->fd[0],
		atomic_read(&temp->ref_count),
		DYNAMIC_BUF_OWNER(temp));
		}
		}
		}
		mutex_unlock(&inst->lock);
		return 0;
		}

		static ssize_t inst_info_read(struct file file, char __user buf,
		size_t count, loff_t *ppos)
		{
		@@ -221,6 +256,19 @@ static ssize_t inst_info_read(struct file file, char __user buf,
		write_str(
		&dbg_buf, "type: %s\n", inst->fmts[i]->type == OUTPUT_PORT ?
		"Output" : "Capture");
		switch (inst->buffer_mode_set[i]) {
		case HAL_BUFFER_MODE_STATIC:
		write_str(&dbg_buf, "buffer mode : %s\n", "static");
		break;
		case HAL_BUFFER_MODE_RING:
		write_str(&dbg_buf, "buffer mode : %s\n", "ring");
		break;
		case HAL_BUFFER_MODE_DYNAMIC:
		write_str(&dbg_buf, "buffer mode : %s\n", "dynamic");
		break;
		default:
		write_str(&dbg_buf, "buffer mode : unsupported\n");
		}
		for (j = 0; j < inst->fmts[i]->num_planes; j++)
		write_str(&dbg_buf, "size for plane %d: %u\n", j,
		inst->bufq[i].vb2_bufq.plane_sizes[j]);
		@@ -235,6 +283,8 @@ static ssize_t inst_info_read(struct file file, char __user buf,
		write_str(&dbg_buf, "EBD Count: %d\n", inst->count.ebd);
		write_str(&dbg_buf, "FTB Count: %d\n", inst->count.ftb);
		write_str(&dbg_buf, "FBD Count: %d\n", inst->count.fbd);
		publish_unreleased_reference(inst);

		return simple_read_from_buffer(buf, count, ppos,
		dbg_buf.ptr, dbg_buf.filled_size);
		}