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Message-ID: <1498143942-12682-5-git-send-email-hugues.fruchet@st.com>
Date: Thu, 22 Jun 2017 17:05:40 +0200
From: Hugues Fruchet <hugues.fruchet@...com>
To: Sylwester Nawrocki <sylvester.nawrocki@...il.com>,
" H. Nikolaus Schaller" <hns@...delico.com>,
Guennadi Liakhovetski <g.liakhovetski@....de>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue <alexandre.torgue@...com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Hans Verkuil <hverkuil@...all.nl>
CC: <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <linux-media@...r.kernel.org>,
Benjamin Gaignard <benjamin.gaignard@...aro.org>,
Yannick Fertre <yannick.fertre@...com>,
Hugues Fruchet <hugues.fruchet@...com>
Subject: [PATCH v1 4/6] [media] ov9650: use write_array() for resolution sequences
Align resolution sequences on initialization sequence using
i2c_rv structure NULL terminated .This add flexibility
on resolution sequence size.
Document resolution related registers by using corresponding
define instead of hexa address/value.
Signed-off-by: Hugues Fruchet <hugues.fruchet@...com>
---
drivers/media/i2c/ov9650.c | 98 ++++++++++++++++++++++++++++++----------------
1 file changed, 64 insertions(+), 34 deletions(-)
diff --git a/drivers/media/i2c/ov9650.c b/drivers/media/i2c/ov9650.c
index 4311da6..8b283c9 100644
--- a/drivers/media/i2c/ov9650.c
+++ b/drivers/media/i2c/ov9650.c
@@ -227,11 +227,16 @@ struct ov965x_ctrls {
u8 update;
};
+struct i2c_rv {
+ u8 addr;
+ u8 value;
+};
+
struct ov965x_framesize {
u16 width;
u16 height;
u16 max_exp_lines;
- const u8 *regs;
+ const struct i2c_rv *regs;
};
struct ov965x_interval {
@@ -280,9 +285,11 @@ struct ov965x {
u8 apply_frame_fmt;
};
-struct i2c_rv {
- u8 addr;
- u8 value;
+struct ov965x_pixfmt {
+ u32 code;
+ u32 colorspace;
+ /* REG_TSLB value, only bits [3:2] may be set. */
+ u8 tslb_reg;
};
static const struct i2c_rv ov965x_init_regs[] = {
@@ -342,30 +349,59 @@ struct i2c_rv {
{ REG_NULL, 0 }
};
-#define NUM_FMT_REGS 14
-/*
- * COM7, COM3, COM4, HSTART, HSTOP, HREF, VSTART, VSTOP, VREF,
- * EXHCH, EXHCL, ADC, OCOM, OFON
- */
-static const u8 frame_size_reg_addr[NUM_FMT_REGS] = {
- 0x12, 0x0c, 0x0d, 0x17, 0x18, 0x32, 0x19, 0x1a, 0x03,
- 0x2a, 0x2b, 0x37, 0x38, 0x39,
-};
-
-static const u8 ov965x_sxga_regs[NUM_FMT_REGS] = {
- 0x00, 0x00, 0x00, 0x1e, 0xbe, 0xbf, 0x01, 0x81, 0x12,
- 0x10, 0x34, 0x81, 0x93, 0x51,
+static const struct i2c_rv ov965x_sxga_regs[] = {
+ { REG_COM7, 0x00 },
+ { REG_COM3, 0x00 },
+ { REG_COM4, 0x00 },
+ { REG_HSTART, 0x1e },
+ { REG_HSTOP, 0xbe },
+ { 0x32, 0xbf },
+ { REG_VSTART, 0x01 },
+ { REG_VSTOP, 0x81 },
+ { REG_VREF, 0x12 },
+ { REG_EXHCH, 0x10 },
+ { REG_EXHCL, 0x34 },
+ { REG_ADC, 0x81 },
+ { REG_ACOM, 0x93 },
+ { REG_OFON, 0x51 },
+ { REG_NULL, 0 },
};
-static const u8 ov965x_vga_regs[NUM_FMT_REGS] = {
- 0x40, 0x04, 0x80, 0x26, 0xc6, 0xed, 0x01, 0x3d, 0x00,
- 0x10, 0x40, 0x91, 0x12, 0x43,
+static const struct i2c_rv ov965x_vga_regs[] = {
+ { REG_COM7, 0x40 },
+ { REG_COM3, 0x04 },
+ { REG_COM4, 0x80 },
+ { REG_HSTART, 0x26 },
+ { REG_HSTOP, 0xc6 },
+ { 0x32, 0xed },
+ { REG_VSTART, 0x01 },
+ { REG_VSTOP, 0x3d },
+ { REG_VREF, 0x00 },
+ { REG_EXHCH, 0x10 },
+ { REG_EXHCL, 0x40 },
+ { REG_ADC, 0x91 },
+ { REG_ACOM, 0x12 },
+ { REG_OFON, 0x43 },
+ { REG_NULL, 0 },
};
/* Determined empirically. */
-static const u8 ov965x_qvga_regs[NUM_FMT_REGS] = {
- 0x10, 0x04, 0x80, 0x25, 0xc5, 0xbf, 0x00, 0x80, 0x12,
- 0x10, 0x40, 0x91, 0x12, 0x43,
+static const struct i2c_rv ov965x_qvga_regs[] = {
+ { REG_COM7, 0x10 },
+ { REG_COM3, 0x04 },
+ { REG_COM4, 0x80 },
+ { REG_HSTART, 0x25 },
+ { REG_HSTOP, 0xc5 },
+ { 0x32, 0xbf },
+ { REG_VSTART, 0x00 },
+ { REG_VSTOP, 0x80 },
+ { REG_VREF, 0x12 },
+ { REG_EXHCH, 0x10 },
+ { REG_EXHCL, 0x40 },
+ { REG_ADC, 0x91 },
+ { REG_ACOM, 0x12 },
+ { REG_OFON, 0x43 },
+ { REG_NULL, 0 },
};
static const struct ov965x_framesize ov965x_framesizes[] = {
@@ -387,13 +423,6 @@ struct i2c_rv {
},
};
-struct ov965x_pixfmt {
- u32 code;
- u32 colorspace;
- /* REG_TSLB value, only bits [3:2] may be set. */
- u8 tslb_reg;
-};
-
static const struct ov965x_pixfmt ov965x_formats[] = {
{ MEDIA_BUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_JPEG, 0x00},
{ MEDIA_BUS_FMT_YVYU8_2X8, V4L2_COLORSPACE_JPEG, 0x04},
@@ -1268,11 +1297,12 @@ static int ov965x_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config
static int ov965x_set_frame_size(struct ov965x *ov965x)
{
- int i, ret = 0;
+ int ret = 0;
+
+ v4l2_dbg(1, debug, ov965x->client, "%s\n", __func__);
- for (i = 0; ret == 0 && i < NUM_FMT_REGS; i++)
- ret = ov965x_write(ov965x->client, frame_size_reg_addr[i],
- ov965x->frame_size->regs[i]);
+ ret = ov965x_write_array(ov965x->client,
+ ov965x->frame_size->regs);
return ret;
}
--
1.9.1
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