1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
From b00bc4caeb798661983eca4f548f0f69301bfb32 Mon Sep 17 00:00:00 2001
From: Sergio Aguirre <saaguirre@ti.com>
Date: Thu, 15 Jul 2010 23:43:20 -0500
Subject: [PATCH 62/75] omap3beagle: camera: Prepare 24MHz xclk for mt9t112
Adjust calculations of timings based on # of EXTCLK cycles.
Also, set default requested framerate to 30 fps.
Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
---
arch/arm/mach-omap2/board-omap3beagle-camera.c | 16 ++++++++--------
1 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/arch/arm/mach-omap2/board-omap3beagle-camera.c b/arch/arm/mach-omap2/board-omap3beagle-camera.c
index 75622bf..520e1d8 100644
--- a/arch/arm/mach-omap2/board-omap3beagle-camera.c
+++ b/arch/arm/mach-omap2/board-omap3beagle-camera.c
@@ -264,7 +264,7 @@ static struct omap34xxcam_hw_config mt9t112_hwc = {
.dev_type = OMAP34XXCAM_SLAVE_SENSOR,
.u.sensor.sensor_isp = 0,
.u.sensor.capture_mem = MT9T112_BIGGEST_FRAME_BYTE_SIZE,
- .u.sensor.ival_default = { 1, 10 },
+ .u.sensor.ival_default = { 1, 30 },
};
#endif
@@ -331,24 +331,24 @@ static int mt9t112_power_set(struct v4l2_int_device *s, enum v4l2_power power)
mdelay(50);
/* Enable EXTCLK */
- isp_set_xclk(vdev->cam->isp, MT9T112_CLK_MIN, CAM_USE_XCLKA);
+ isp_set_xclk(vdev->cam->isp, 24000000, CAM_USE_XCLKA);
/*
- * Wait at least 70 CLK cycles (w/EXTCLK = 6MHz, or CLK_MIN):
- * ((1000000 * 70) / 6000000) = aprox 12 us.
+ * Wait at least 70 CLK cycles (w/EXTCLK = 24MHz):
+ * ((1000000 * 70) / 24000000) = aprox 2.91 us.
*/
- udelay(12);
+ udelay(3);
/* Set RESET_BAR to 1 */
gpio_set_value(LEOPARD_RESET_GPIO, 1);
/*
- * Wait at least 100 CLK cycles (w/EXTCLK = 6MHz, or CLK_MIN):
- * ((1000000 * 100) / 6000000) = aprox 17 us.
+ * Wait at least 100 CLK cycles (w/EXTCLK = 24MHz):
+ * ((1000000 * 100) / 24000000) = aprox 4.16 us.
*/
- udelay(17);
+ udelay(5);
break;
--
1.6.6.1
|
