static int gsc_capture_subdev_s_stream(struct v4l2_subdev *sd, int enable)
{
struct gsc_dev *gsc = v4l2_get_subdevdata(sd);
struct gsc_capture_device *cap = &gsc->cap;
struct gsc_ctx *ctx = cap->ctx;
int ret;
if (enable) {
gsc_hw_set_local_src(gsc, true);
gsc_hw_set_sysreg_writeback(gsc, true);
gsc_hw_set_sw_reset(gsc);
ret = gsc_wait_reset(gsc);
if (ret < 0) {
gsc_err("gscaler s/w reset timeout");
return ret;
}
ret = gsc_set_scaler_info(ctx);
if (ret) {
gsc_err("Scaler setup error");
return ret;
}
gsc_hw_set_output_buf_fixed(gsc);
gsc_hw_set_output_buf_masking(gsc, 0, false);
gsc_hw_set_frm_done_irq_mask(gsc, false);
gsc_hw_set_deadlock_irq_mask(gsc, false);
gsc_hw_set_read_slave_error_mask(gsc, false);
gsc_hw_set_write_slave_error_mask(gsc, false);
gsc_hw_set_overflow_irq_mask(gsc, true);
gsc_hw_set_gsc_irq_enable(gsc, true);
gsc_hw_set_one_frm_mode(gsc, true);
gsc_hw_set_freerun_clock_mode(gsc, false);
gsc_hw_set_input_path(ctx);
gsc_hw_set_in_size(ctx);
gsc_hw_set_in_image_format(ctx);
gsc_hw_set_output_path(ctx);
gsc_hw_set_out_size(ctx);
gsc_hw_set_out_image_format(ctx);
gsc_hw_set_prescaler(ctx);
gsc_hw_set_mainscaler(ctx);
gsc_hw_set_h_coef(ctx);
gsc_hw_set_v_coef(ctx);
gsc_hw_set_output_rotation(ctx);
gsc_hw_set_global_alpha(ctx);
if (is_rotation) {
ret = gsc_check_rotation_size(ctx);
if (ret < 0) {
gsc_err("Scaler setup error");
return ret;
}
}
gsc_hw_set_for_wb(gsc);
gsc_hw_set_lookup_table(gsc);
gsc_hw_set_smart_if_con(gsc, true);
gsc_hw_set_buscon_realtime(gsc);
gsc_hw_set_qos_enable(gsc);
}
return 0;
}
static void gsc_m2m_device_run(void *priv)
{
struct gsc_ctx *ctx = priv;
struct gsc_dev *gsc;
unsigned long flags;
int ret;
bool is_set = false;
if (WARN(!ctx, "null hardware context\n"))
return;
gsc = ctx->gsc_dev;
if (in_irq())
ret = pm_runtime_get(&gsc->pdev->dev);
else
ret = pm_runtime_get_sync(&gsc->pdev->dev);
if (ret < 0) {
gsc_err("fail to pm_runtime_get");
return;
}
spin_lock_irqsave(&ctx->slock, flags);
/* Reconfigure hardware if the context has changed. */
if (gsc->m2m.ctx != ctx) {
gsc_dbg("gsc->m2m.ctx = 0x%p, current_ctx = 0x%p",
gsc->m2m.ctx, ctx);
ctx->state |= GSC_PARAMS;
gsc->m2m.ctx = ctx;
}
is_set = (ctx->state & GSC_CTX_STOP_REQ) ? 1 : 0;
ctx->state &= ~GSC_CTX_STOP_REQ;
if (is_set) {
wake_up(&gsc->irq_queue);
goto put_device;
}
ret = gsc_fill_addr(ctx);
if (ret) {
gsc_err("Wrong address");
goto put_device;
}
if (ctx->state & GSC_PARAMS) {
gsc_hw_set_sw_reset(gsc);
ret = gsc_wait_reset(gsc);
if (ret < 0) {
gsc_err("gscaler s/w reset timeout");
goto put_device;
}
gsc_hw_set_input_buf_masking(gsc, GSC_M2M_BUF_NUM, false);
gsc_hw_set_output_buf_masking(gsc, GSC_M2M_BUF_NUM, false);
gsc_hw_set_frm_done_irq_mask(gsc, false);
gsc_hw_set_deadlock_irq_mask(gsc, false);
gsc_hw_set_read_slave_error_mask(gsc, false);
gsc_hw_set_write_slave_error_mask(gsc, false);
gsc_hw_set_gsc_irq_enable(gsc, true);
gsc_hw_set_one_frm_mode(gsc, true);
gsc_hw_set_freerun_clock_mode(gsc, false);
if (gsc_set_scaler_info(ctx)) {
gsc_err("Scaler setup error");
goto put_device;
}
gsc_hw_set_input_path(ctx);
gsc_hw_set_in_size(ctx);
gsc_hw_set_in_image_format(ctx);
gsc_hw_set_output_path(ctx);
gsc_hw_set_out_size(ctx);
gsc_hw_set_out_image_format(ctx);
gsc_hw_set_prescaler(ctx);
gsc_hw_set_mainscaler(ctx);
gsc_hw_set_h_coef(ctx);
gsc_hw_set_v_coef(ctx);
if (ctx->scaler.is_scaled_down)
gsc_hw_set_output_rotation(ctx);
else
gsc_hw_set_input_rotation(ctx);
gsc_hw_set_global_alpha(ctx);
if (is_rotation) {
ret = gsc_check_rotation_size(ctx);
if (ret < 0)
goto put_device;
}
}
gsc_hw_set_input_addr(gsc, &ctx->s_frame.addr, GSC_M2M_BUF_NUM);
gsc_hw_set_output_addr(gsc, &ctx->d_frame.addr, GSC_M2M_BUF_NUM);
ctx->state &= ~GSC_PARAMS;
if (!test_and_set_bit(ST_M2M_RUN, &gsc->state)) {
/* One frame mode sequence
GSCALER_ON on -> GSCALER_OP_STATUS is operating ->
GSCALER_ON off */
gsc_hw_enable_control(gsc, true);
#ifdef GSC_PERF
gsc->start_time = sched_clock();
#endif
ret = gsc_wait_operating(gsc);
if (ret < 0) {
gsc_err("gscaler wait operating timeout");
goto put_device;
}
gsc->op_timer.expires = (jiffies + 2 * HZ);
mod_timer(&gsc->op_timer, gsc->op_timer.expires);
}
spin_unlock_irqrestore(&ctx->slock, flags);
iovmm_set_fault_handler(&gsc->pdev->dev,
gsc_sysmmu_m2m_fault_handler, ctx);
return;
put_device:
ctx->state &= ~GSC_PARAMS;
spin_unlock_irqrestore(&ctx->slock, flags);
pm_runtime_put_sync(&gsc->pdev->dev);
}
static void gsc_capture_buf_queue(struct vb2_buffer *vb)
{
struct gsc_input_buf *buf
= container_of(vb, struct gsc_input_buf, vb);
struct vb2_queue *q = vb->vb2_queue;
struct gsc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
struct gsc_dev *gsc = ctx->gsc_dev;
int ret;
if (vb->acquire_fence) {
gsc_dbg("acquire fence has..");
ret = sync_fence_wait(vb->acquire_fence, 100);
sync_fence_put(vb->acquire_fence);
vb->acquire_fence = NULL;
if (ret < 0) {
gsc_err("synce_fence_wait() timeout");
return;
}
}
if (!q->streaming) {
gsc_info("gsc-wb initialize");
INIT_LIST_HEAD(&gsc->cap.active_buf_q);
ret = v4l2_subdev_call(gsc->cap.sd, video,
s_stream, 1);
if (ret) {
gsc_err("gsc s_stream failed");
return;
}
}
ret = gsc_cap_set_addr(gsc, ctx, buf, vb->v4l2_buf.index);
if (ret) {
gsc_err("Failed to prepare output addr");
return;
}
if (!test_and_set_bit(ST_CAPT_RUN, &gsc->state)) {
ret = gsc_set_scaler_info(ctx);
if (ret) {
gsc_err("Scaler setup error");
return;
}
gsc_hw_set_in_size(ctx);
gsc_hw_set_out_size(ctx);
gsc_hw_set_prescaler(ctx);
gsc_hw_set_mainscaler(ctx);
gsc_hw_set_h_coef(ctx);
gsc_hw_set_v_coef(ctx);
gsc_hw_set_output_rotation(ctx);
gsc_hw_set_global_alpha(ctx);
if (is_rotation) {
ret = gsc_check_rotation_size(ctx);
if (ret < 0) {
gsc_err("Scaler setup error");
return;
}
}
gsc_hw_set_sfr_update(ctx);
gsc_hw_enable_control(gsc, true);
ret = gsc_wait_operating(gsc);
if (ret < 0) {
gsc_err("gscaler wait operating timeout");
return;
}
gsc_dbg("gsc-wb start");
} else {
gsc_err();
}
}