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path: root/drivers/media/video/m5mols/m5mols_capture.c
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Diffstat (limited to 'drivers/media/video/m5mols/m5mols_capture.c')
-rw-r--r--drivers/media/video/m5mols/m5mols_capture.c83
1 files changed, 27 insertions, 56 deletions
diff --git a/drivers/media/video/m5mols/m5mols_capture.c b/drivers/media/video/m5mols/m5mols_capture.c
index 3248ac80571..ba25e8e2ba4 100644
--- a/drivers/media/video/m5mols/m5mols_capture.c
+++ b/drivers/media/video/m5mols/m5mols_capture.c
@@ -1,3 +1,4 @@
+
/*
* The Capture code for Fujitsu M-5MOLS ISP
*
@@ -25,26 +26,11 @@
#include <media/v4l2-device.h>
#include <media/v4l2-subdev.h>
#include <media/m5mols.h>
+#include <media/s5p_fimc.h>
#include "m5mols.h"
#include "m5mols_reg.h"
-static int m5mols_capture_error_handler(struct m5mols_info *info,
- int timeout)
-{
- int ret;
-
- /* Disable all interrupts and clear relevant interrupt staus bits */
- ret = m5mols_write(&info->sd, SYSTEM_INT_ENABLE,
- info->interrupt & ~(REG_INT_CAPTURE));
- if (ret)
- return ret;
-
- if (timeout == 0)
- return -ETIMEDOUT;
-
- return 0;
-}
/**
* m5mols_read_rational - I2C read of a rational number
*
@@ -121,69 +107,54 @@ int m5mols_start_capture(struct m5mols_info *info)
{
struct v4l2_subdev *sd = &info->sd;
u8 resolution = info->resolution;
- int timeout;
int ret;
/*
- * Preparing capture. Setting control & interrupt before entering
- * capture mode
- *
- * 1) change to MONITOR mode for operating control & interrupt
- * 2) set controls (considering v4l2_control value & lock 3A)
- * 3) set interrupt
- * 4) change to CAPTURE mode
+ * Synchronize the controls, set the capture frame resolution and color
+ * format. The frame capture is initiated during switching from Monitor
+ * to Capture mode.
*/
ret = m5mols_mode(info, REG_MONITOR);
if (!ret)
- ret = m5mols_sync_controls(info);
+ ret = m5mols_restore_controls(info);
if (!ret)
- ret = m5mols_lock_3a(info, true);
+ ret = m5mols_write(sd, CAPP_YUVOUT_MAIN, REG_JPEG);
+ if (!ret)
+ ret = m5mols_write(sd, CAPP_MAIN_IMAGE_SIZE, resolution);
if (!ret)
- ret = m5mols_enable_interrupt(sd, REG_INT_CAPTURE);
+ ret = m5mols_lock_3a(info, true);
if (!ret)
ret = m5mols_mode(info, REG_CAPTURE);
- if (!ret) {
- /* Wait for capture interrupt, after changing capture mode */
- timeout = wait_event_interruptible_timeout(info->irq_waitq,
- test_bit(ST_CAPT_IRQ, &info->flags),
- msecs_to_jiffies(2000));
- if (test_and_clear_bit(ST_CAPT_IRQ, &info->flags))
- ret = m5mols_capture_error_handler(info, timeout);
- }
+ if (!ret)
+ /* Wait until a frame is captured to ISP internal memory */
+ ret = m5mols_wait_interrupt(sd, REG_INT_CAPTURE, 2000);
if (!ret)
ret = m5mols_lock_3a(info, false);
if (ret)
return ret;
+
/*
- * Starting capture. Setting capture frame count and resolution and
- * the format(available format: JPEG, Bayer RAW, YUV).
- *
- * 1) select single or multi(enable to 25), format, size
- * 2) set interrupt
- * 3) start capture(for main image, now)
- * 4) get information
- * 5) notify file size to v4l2 device(e.g, to s5p-fimc v4l2 device)
+ * Initiate the captured data transfer to a MIPI-CSI receiver.
*/
ret = m5mols_write(sd, CAPC_SEL_FRAME, 1);
if (!ret)
- ret = m5mols_write(sd, CAPP_YUVOUT_MAIN, REG_JPEG);
- if (!ret)
- ret = m5mols_write(sd, CAPP_MAIN_IMAGE_SIZE, resolution);
- if (!ret)
- ret = m5mols_enable_interrupt(sd, REG_INT_CAPTURE);
- if (!ret)
ret = m5mols_write(sd, CAPC_START, REG_CAP_START_MAIN);
if (!ret) {
+ bool captured = false;
+ unsigned int size;
+
/* Wait for the capture completion interrupt */
- timeout = wait_event_interruptible_timeout(info->irq_waitq,
- test_bit(ST_CAPT_IRQ, &info->flags),
- msecs_to_jiffies(2000));
- if (test_and_clear_bit(ST_CAPT_IRQ, &info->flags)) {
+ ret = m5mols_wait_interrupt(sd, REG_INT_CAPTURE, 2000);
+ if (!ret) {
+ captured = true;
ret = m5mols_capture_info(info);
- if (!ret)
- v4l2_subdev_notify(sd, 0, &info->cap.total);
}
+ size = captured ? info->cap.main : 0;
+ v4l2_dbg(1, m5mols_debug, sd, "%s: size: %d, thumb.: %d B\n",
+ __func__, size, info->cap.thumb);
+
+ v4l2_subdev_notify(sd, S5P_FIMC_TX_END_NOTIFY, &size);
}
- return m5mols_capture_error_handler(info, timeout);
+ return ret;
}