[V2,1/2] media: i2c: imx219: Split common registers from mode tables
Commit Message
There are four modes, and each mode has a table of registers.
Some of the registers are common to all modes, so create new
tables for these common registers to reduce duplicate code.
Signed-off-by: Adam Ford <aford173@gmail.com>
---
V2: Merge the PLL table into the common table instead of having
two separate, common tables.
Comments
Hi Adam
Thanks for the patch, and sorry it's taken me a few days to get to it.
On Thu, 16 Jun 2022 at 13:31, Adam Ford <aford173@gmail.com> wrote:
>
> There are four modes, and each mode has a table of registers.
> Some of the registers are common to all modes, so create new
> tables for these common registers to reduce duplicate code.
>
> Signed-off-by: Adam Ford <aford173@gmail.com>
> ---
> V2: Merge the PLL table into the common table instead of having
> two separate, common tables.
>
> diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
> index e10af3f74b38..a43eed143999 100644
> --- a/drivers/media/i2c/imx219.c
> +++ b/drivers/media/i2c/imx219.c
> @@ -145,23 +145,60 @@ struct imx219_mode {
> struct imx219_reg_list reg_list;
> };
>
> -/*
> - * Register sets lifted off the i2C interface from the Raspberry Pi firmware
> - * driver.
> - * 3280x2464 = mode 2, 1920x1080 = mode 1, 1640x1232 = mode 4, 640x480 = mode 7.
> - */
> -static const struct imx219_reg mode_3280x2464_regs[] = {
> - {0x0100, 0x00},
> +/* To Access Addresses 3000-5fff, send the following commands */
> +static const struct imx219_reg imx219_common_regs[] = {
> + {0x0100, 0x00}, /* Mode Select */
> +
> + /* Access Command Sequence */
> {0x30eb, 0x0c},
> {0x30eb, 0x05},
> {0x300a, 0xff},
> {0x300b, 0xff},
> {0x30eb, 0x05},
> {0x30eb, 0x09},
> - {0x0114, 0x01},
> - {0x0128, 0x00},
> - {0x012a, 0x18},
> +
> + /* PLL Clock Table */
> + {0x0301, 0x05}, /* VTPXCK_DIV */
> + {0x0303, 0x01}, /* VTSYSCK_DIV */
> + {0x0304, 0x03}, /* PREPLLCK_VT_DIV 0x03 = AUTO set */
> + {0x0305, 0x03}, /* PREPLLCK_OP_DIV 0x03 = AUTO set */
> + {0x0306, 0x00}, /* PLL_VT_MPY */
> + {0x0307, 0x39},
> + {0x030b, 0x01}, /* OP_SYS_CLK_DIV */
> + {0x030c, 0x00}, /* PLL_OP_MPY */
> + {0x030d, 0x72},
> +
> + /* Undocumented registers */
> + {0x455e, 0x00},
> + {0x471e, 0x4b},
> + {0x4767, 0x0f},
> + {0x4750, 0x14},
> + {0x4540, 0x00},
> + {0x47b4, 0x14},
> + {0x4713, 0x30},
> + {0x478b, 0x10},
> + {0x478f, 0x10},
> + {0x4793, 0x10},
> + {0x4797, 0x0e},
> + {0x479b, 0x0e},
> +
> + /* Frame Bank Register Group "A" */
> + {0x0162, 0x0d}, /* Line_Length_A */
> + {0x0163, 0x78},
Registers 0x0170 and 0x171 for X_ODD_INC_A and Y_ODD_INC_A are also
common to all modes as 0x01. You could have modes with skipping, but
currently there are none.
> +
> + /* Output setup registers */
> + {0x0114, 0x01}, /* CSI 2-Lane Mode */
> + {0x0128, 0x00}, /* DPHY Auto Mode */
> + {0x012a, 0x18}, /* EXCK_Freq */
> {0x012b, 0x00},
> +};
> +
> +/*
> + * Register sets lifted off the i2C interface from the Raspberry Pi firmware
> + * driver.
> + * 3280x2464 = mode 2, 1920x1080 = mode 1, 1640x1232 = mode 4, 640x480 = mode 7.
> + */
> +static const struct imx219_reg mode_3280x2464_regs[] = {
> {0x0164, 0x00},
> {0x0165, 0x00},
> {0x0166, 0x0c},
> @@ -176,51 +213,15 @@ static const struct imx219_reg mode_3280x2464_regs[] = {
> {0x016f, 0xa0},
> {0x0170, 0x01},
> {0x0171, 0x01},
> - {0x0174, 0x00},
> + {0x0174, 0x00}, /* No-Binning */
> {0x0175, 0x00},
> - {0x0301, 0x05},
> - {0x0303, 0x01},
> - {0x0304, 0x03},
> - {0x0305, 0x03},
> - {0x0306, 0x00},
> - {0x0307, 0x39},
> - {0x030b, 0x01},
> - {0x030c, 0x00},
> - {0x030d, 0x72},
> {0x0624, 0x0c},
> {0x0625, 0xd0},
> {0x0626, 0x09},
> {0x0627, 0xa0},
> - {0x455e, 0x00},
> - {0x471e, 0x4b},
> - {0x4767, 0x0f},
> - {0x4750, 0x14},
> - {0x4540, 0x00},
> - {0x47b4, 0x14},
> - {0x4713, 0x30},
> - {0x478b, 0x10},
> - {0x478f, 0x10},
> - {0x4793, 0x10},
> - {0x4797, 0x0e},
> - {0x479b, 0x0e},
> - {0x0162, 0x0d},
> - {0x0163, 0x78},
> };
>
> static const struct imx219_reg mode_1920_1080_regs[] = {
> - {0x0100, 0x00},
> - {0x30eb, 0x05},
> - {0x30eb, 0x0c},
> - {0x300a, 0xff},
> - {0x300b, 0xff},
> - {0x30eb, 0x05},
> - {0x30eb, 0x09},
> - {0x0114, 0x01},
> - {0x0128, 0x00},
> - {0x012a, 0x18},
> - {0x012b, 0x00},
> - {0x0162, 0x0d},
> - {0x0163, 0x78},
> {0x0164, 0x02},
> {0x0165, 0xa8},
> {0x0166, 0x0a},
> @@ -235,47 +236,15 @@ static const struct imx219_reg mode_1920_1080_regs[] = {
> {0x016f, 0x38},
> {0x0170, 0x01},
> {0x0171, 0x01},
> - {0x0174, 0x00},
> + {0x0174, 0x00}, /* No-Binning */
> {0x0175, 0x00},
> - {0x0301, 0x05},
> - {0x0303, 0x01},
> - {0x0304, 0x03},
> - {0x0305, 0x03},
> - {0x0306, 0x00},
> - {0x0307, 0x39},
> - {0x030b, 0x01},
> - {0x030c, 0x00},
> - {0x030d, 0x72},
> {0x0624, 0x07},
> {0x0625, 0x80},
> {0x0626, 0x04},
> {0x0627, 0x38},
> - {0x455e, 0x00},
> - {0x471e, 0x4b},
> - {0x4767, 0x0f},
> - {0x4750, 0x14},
> - {0x4540, 0x00},
> - {0x47b4, 0x14},
> - {0x4713, 0x30},
> - {0x478b, 0x10},
> - {0x478f, 0x10},
> - {0x4793, 0x10},
> - {0x4797, 0x0e},
> - {0x479b, 0x0e},
> };
>
> static const struct imx219_reg mode_1640_1232_regs[] = {
> - {0x0100, 0x00},
> - {0x30eb, 0x0c},
> - {0x30eb, 0x05},
> - {0x300a, 0xff},
> - {0x300b, 0xff},
> - {0x30eb, 0x05},
> - {0x30eb, 0x09},
> - {0x0114, 0x01},
> - {0x0128, 0x00},
> - {0x012a, 0x18},
> - {0x012b, 0x00},
> {0x0164, 0x00},
> {0x0165, 0x00},
> {0x0166, 0x0c},
> @@ -290,51 +259,15 @@ static const struct imx219_reg mode_1640_1232_regs[] = {
> {0x016f, 0xd0},
> {0x0170, 0x01},
> {0x0171, 0x01},
> - {0x0174, 0x01},
> + {0x0174, 0x01}, /* x2-Binning */
> {0x0175, 0x01},
> - {0x0301, 0x05},
> - {0x0303, 0x01},
> - {0x0304, 0x03},
> - {0x0305, 0x03},
> - {0x0306, 0x00},
> - {0x0307, 0x39},
> - {0x030b, 0x01},
> - {0x030c, 0x00},
> - {0x030d, 0x72},
> {0x0624, 0x06},
> {0x0625, 0x68},
> {0x0626, 0x04},
> {0x0627, 0xd0},
> - {0x455e, 0x00},
> - {0x471e, 0x4b},
> - {0x4767, 0x0f},
> - {0x4750, 0x14},
> - {0x4540, 0x00},
> - {0x47b4, 0x14},
> - {0x4713, 0x30},
> - {0x478b, 0x10},
> - {0x478f, 0x10},
> - {0x4793, 0x10},
> - {0x4797, 0x0e},
> - {0x479b, 0x0e},
> - {0x0162, 0x0d},
> - {0x0163, 0x78},
> };
>
> static const struct imx219_reg mode_640_480_regs[] = {
> - {0x0100, 0x00},
> - {0x30eb, 0x05},
> - {0x30eb, 0x0c},
> - {0x300a, 0xff},
> - {0x300b, 0xff},
> - {0x30eb, 0x05},
> - {0x30eb, 0x09},
> - {0x0114, 0x01},
> - {0x0128, 0x00},
> - {0x012a, 0x18},
> - {0x012b, 0x00},
> - {0x0162, 0x0d},
> - {0x0163, 0x78},
> {0x0164, 0x03},
> {0x0165, 0xe8},
> {0x0166, 0x08},
> @@ -349,33 +282,12 @@ static const struct imx219_reg mode_640_480_regs[] = {
> {0x016f, 0xe0},
> {0x0170, 0x01},
> {0x0171, 0x01},
> - {0x0174, 0x03},
> + {0x0174, 0x03}, /* x2-analog binning */
> {0x0175, 0x03},
> - {0x0301, 0x05},
> - {0x0303, 0x01},
> - {0x0304, 0x03},
> - {0x0305, 0x03},
> - {0x0306, 0x00},
> - {0x0307, 0x39},
> - {0x030b, 0x01},
> - {0x030c, 0x00},
> - {0x030d, 0x72},
> {0x0624, 0x06},
> {0x0625, 0x68},
> {0x0626, 0x04},
> {0x0627, 0xd0},
> - {0x455e, 0x00},
> - {0x471e, 0x4b},
> - {0x4767, 0x0f},
> - {0x4750, 0x14},
> - {0x4540, 0x00},
> - {0x47b4, 0x14},
> - {0x4713, 0x30},
> - {0x478b, 0x10},
> - {0x478f, 0x10},
> - {0x4793, 0x10},
> - {0x4797, 0x0e},
> - {0x479b, 0x0e},
> };
>
> static const struct imx219_reg raw8_framefmt_regs[] = {
> @@ -1041,6 +953,13 @@ static int imx219_start_streaming(struct imx219 *imx219)
> if (ret < 0)
> return ret;
>
> + /* Send the Manufacturing Header common to all modes */
It's a table of common settings, not a manufacturing header.
s/Send the Manufacturing Header/Send all registers that are
Dave
> + ret = imx219_write_regs(imx219, imx219_common_regs, ARRAY_SIZE(imx219_common_regs));
> + if (ret) {
> + dev_err(&client->dev, "%s failed to send mfg header\n", __func__);
> + goto err_rpm_put;
> + }
> +
> /* Apply default values of current mode */
> reg_list = &imx219->mode->reg_list;
> ret = imx219_write_regs(imx219, reg_list->regs, reg_list->num_of_regs);
> --
> 2.34.1
>
On Tue, Jun 21, 2022 at 10:46 AM Dave Stevenson
<dave.stevenson@raspberrypi.com> wrote:
>
> Hi Adam
>
> Thanks for the patch, and sorry it's taken me a few days to get to it.
>
> On Thu, 16 Jun 2022 at 13:31, Adam Ford <aford173@gmail.com> wrote:
> >
> > There are four modes, and each mode has a table of registers.
> > Some of the registers are common to all modes, so create new
> > tables for these common registers to reduce duplicate code.
> >
> > Signed-off-by: Adam Ford <aford173@gmail.com>
> > ---
> > V2: Merge the PLL table into the common table instead of having
> > two separate, common tables.
> >
> > diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
> > index e10af3f74b38..a43eed143999 100644
> > --- a/drivers/media/i2c/imx219.c
> > +++ b/drivers/media/i2c/imx219.c
> > @@ -145,23 +145,60 @@ struct imx219_mode {
> > struct imx219_reg_list reg_list;
> > };
> >
> > -/*
> > - * Register sets lifted off the i2C interface from the Raspberry Pi firmware
> > - * driver.
> > - * 3280x2464 = mode 2, 1920x1080 = mode 1, 1640x1232 = mode 4, 640x480 = mode 7.
> > - */
> > -static const struct imx219_reg mode_3280x2464_regs[] = {
> > - {0x0100, 0x00},
> > +/* To Access Addresses 3000-5fff, send the following commands */
> > +static const struct imx219_reg imx219_common_regs[] = {
> > + {0x0100, 0x00}, /* Mode Select */
> > +
> > + /* Access Command Sequence */
> > {0x30eb, 0x0c},
> > {0x30eb, 0x05},
> > {0x300a, 0xff},
> > {0x300b, 0xff},
> > {0x30eb, 0x05},
> > {0x30eb, 0x09},
> > - {0x0114, 0x01},
> > - {0x0128, 0x00},
> > - {0x012a, 0x18},
> > +
> > + /* PLL Clock Table */
> > + {0x0301, 0x05}, /* VTPXCK_DIV */
> > + {0x0303, 0x01}, /* VTSYSCK_DIV */
> > + {0x0304, 0x03}, /* PREPLLCK_VT_DIV 0x03 = AUTO set */
> > + {0x0305, 0x03}, /* PREPLLCK_OP_DIV 0x03 = AUTO set */
> > + {0x0306, 0x00}, /* PLL_VT_MPY */
> > + {0x0307, 0x39},
> > + {0x030b, 0x01}, /* OP_SYS_CLK_DIV */
> > + {0x030c, 0x00}, /* PLL_OP_MPY */
> > + {0x030d, 0x72},
> > +
> > + /* Undocumented registers */
> > + {0x455e, 0x00},
> > + {0x471e, 0x4b},
> > + {0x4767, 0x0f},
> > + {0x4750, 0x14},
> > + {0x4540, 0x00},
> > + {0x47b4, 0x14},
> > + {0x4713, 0x30},
> > + {0x478b, 0x10},
> > + {0x478f, 0x10},
> > + {0x4793, 0x10},
> > + {0x4797, 0x0e},
> > + {0x479b, 0x0e},
> > +
> > + /* Frame Bank Register Group "A" */
> > + {0x0162, 0x0d}, /* Line_Length_A */
> > + {0x0163, 0x78},
>
> Registers 0x0170 and 0x171 for X_ODD_INC_A and Y_ODD_INC_A are also
> common to all modes as 0x01. You could have modes with skipping, but
> currently there are none.
>
> > +
> > + /* Output setup registers */
> > + {0x0114, 0x01}, /* CSI 2-Lane Mode */
> > + {0x0128, 0x00}, /* DPHY Auto Mode */
> > + {0x012a, 0x18}, /* EXCK_Freq */
> > {0x012b, 0x00},
> > +};
> > +
> > +/*
> > + * Register sets lifted off the i2C interface from the Raspberry Pi firmware
> > + * driver.
> > + * 3280x2464 = mode 2, 1920x1080 = mode 1, 1640x1232 = mode 4, 640x480 = mode 7.
> > + */
> > +static const struct imx219_reg mode_3280x2464_regs[] = {
> > {0x0164, 0x00},
> > {0x0165, 0x00},
> > {0x0166, 0x0c},
> > @@ -176,51 +213,15 @@ static const struct imx219_reg mode_3280x2464_regs[] = {
> > {0x016f, 0xa0},
> > {0x0170, 0x01},
> > {0x0171, 0x01},
> > - {0x0174, 0x00},
> > + {0x0174, 0x00}, /* No-Binning */
> > {0x0175, 0x00},
> > - {0x0301, 0x05},
> > - {0x0303, 0x01},
> > - {0x0304, 0x03},
> > - {0x0305, 0x03},
> > - {0x0306, 0x00},
> > - {0x0307, 0x39},
> > - {0x030b, 0x01},
> > - {0x030c, 0x00},
> > - {0x030d, 0x72},
> > {0x0624, 0x0c},
> > {0x0625, 0xd0},
> > {0x0626, 0x09},
> > {0x0627, 0xa0},
> > - {0x455e, 0x00},
> > - {0x471e, 0x4b},
> > - {0x4767, 0x0f},
> > - {0x4750, 0x14},
> > - {0x4540, 0x00},
> > - {0x47b4, 0x14},
> > - {0x4713, 0x30},
> > - {0x478b, 0x10},
> > - {0x478f, 0x10},
> > - {0x4793, 0x10},
> > - {0x4797, 0x0e},
> > - {0x479b, 0x0e},
> > - {0x0162, 0x0d},
> > - {0x0163, 0x78},
> > };
> >
> > static const struct imx219_reg mode_1920_1080_regs[] = {
> > - {0x0100, 0x00},
> > - {0x30eb, 0x05},
> > - {0x30eb, 0x0c},
> > - {0x300a, 0xff},
> > - {0x300b, 0xff},
> > - {0x30eb, 0x05},
> > - {0x30eb, 0x09},
> > - {0x0114, 0x01},
> > - {0x0128, 0x00},
> > - {0x012a, 0x18},
> > - {0x012b, 0x00},
> > - {0x0162, 0x0d},
> > - {0x0163, 0x78},
> > {0x0164, 0x02},
> > {0x0165, 0xa8},
> > {0x0166, 0x0a},
> > @@ -235,47 +236,15 @@ static const struct imx219_reg mode_1920_1080_regs[] = {
> > {0x016f, 0x38},
> > {0x0170, 0x01},
> > {0x0171, 0x01},
> > - {0x0174, 0x00},
> > + {0x0174, 0x00}, /* No-Binning */
> > {0x0175, 0x00},
> > - {0x0301, 0x05},
> > - {0x0303, 0x01},
> > - {0x0304, 0x03},
> > - {0x0305, 0x03},
> > - {0x0306, 0x00},
> > - {0x0307, 0x39},
> > - {0x030b, 0x01},
> > - {0x030c, 0x00},
> > - {0x030d, 0x72},
> > {0x0624, 0x07},
> > {0x0625, 0x80},
> > {0x0626, 0x04},
> > {0x0627, 0x38},
> > - {0x455e, 0x00},
> > - {0x471e, 0x4b},
> > - {0x4767, 0x0f},
> > - {0x4750, 0x14},
> > - {0x4540, 0x00},
> > - {0x47b4, 0x14},
> > - {0x4713, 0x30},
> > - {0x478b, 0x10},
> > - {0x478f, 0x10},
> > - {0x4793, 0x10},
> > - {0x4797, 0x0e},
> > - {0x479b, 0x0e},
> > };
> >
> > static const struct imx219_reg mode_1640_1232_regs[] = {
> > - {0x0100, 0x00},
> > - {0x30eb, 0x0c},
> > - {0x30eb, 0x05},
> > - {0x300a, 0xff},
> > - {0x300b, 0xff},
> > - {0x30eb, 0x05},
> > - {0x30eb, 0x09},
> > - {0x0114, 0x01},
> > - {0x0128, 0x00},
> > - {0x012a, 0x18},
> > - {0x012b, 0x00},
> > {0x0164, 0x00},
> > {0x0165, 0x00},
> > {0x0166, 0x0c},
> > @@ -290,51 +259,15 @@ static const struct imx219_reg mode_1640_1232_regs[] = {
> > {0x016f, 0xd0},
> > {0x0170, 0x01},
> > {0x0171, 0x01},
> > - {0x0174, 0x01},
> > + {0x0174, 0x01}, /* x2-Binning */
> > {0x0175, 0x01},
> > - {0x0301, 0x05},
> > - {0x0303, 0x01},
> > - {0x0304, 0x03},
> > - {0x0305, 0x03},
> > - {0x0306, 0x00},
> > - {0x0307, 0x39},
> > - {0x030b, 0x01},
> > - {0x030c, 0x00},
> > - {0x030d, 0x72},
> > {0x0624, 0x06},
> > {0x0625, 0x68},
> > {0x0626, 0x04},
> > {0x0627, 0xd0},
> > - {0x455e, 0x00},
> > - {0x471e, 0x4b},
> > - {0x4767, 0x0f},
> > - {0x4750, 0x14},
> > - {0x4540, 0x00},
> > - {0x47b4, 0x14},
> > - {0x4713, 0x30},
> > - {0x478b, 0x10},
> > - {0x478f, 0x10},
> > - {0x4793, 0x10},
> > - {0x4797, 0x0e},
> > - {0x479b, 0x0e},
> > - {0x0162, 0x0d},
> > - {0x0163, 0x78},
> > };
> >
> > static const struct imx219_reg mode_640_480_regs[] = {
> > - {0x0100, 0x00},
> > - {0x30eb, 0x05},
> > - {0x30eb, 0x0c},
> > - {0x300a, 0xff},
> > - {0x300b, 0xff},
> > - {0x30eb, 0x05},
> > - {0x30eb, 0x09},
> > - {0x0114, 0x01},
> > - {0x0128, 0x00},
> > - {0x012a, 0x18},
> > - {0x012b, 0x00},
> > - {0x0162, 0x0d},
> > - {0x0163, 0x78},
> > {0x0164, 0x03},
> > {0x0165, 0xe8},
> > {0x0166, 0x08},
> > @@ -349,33 +282,12 @@ static const struct imx219_reg mode_640_480_regs[] = {
> > {0x016f, 0xe0},
> > {0x0170, 0x01},
> > {0x0171, 0x01},
> > - {0x0174, 0x03},
> > + {0x0174, 0x03}, /* x2-analog binning */
> > {0x0175, 0x03},
> > - {0x0301, 0x05},
> > - {0x0303, 0x01},
> > - {0x0304, 0x03},
> > - {0x0305, 0x03},
> > - {0x0306, 0x00},
> > - {0x0307, 0x39},
> > - {0x030b, 0x01},
> > - {0x030c, 0x00},
> > - {0x030d, 0x72},
> > {0x0624, 0x06},
> > {0x0625, 0x68},
> > {0x0626, 0x04},
> > {0x0627, 0xd0},
> > - {0x455e, 0x00},
> > - {0x471e, 0x4b},
> > - {0x4767, 0x0f},
> > - {0x4750, 0x14},
> > - {0x4540, 0x00},
> > - {0x47b4, 0x14},
> > - {0x4713, 0x30},
> > - {0x478b, 0x10},
> > - {0x478f, 0x10},
> > - {0x4793, 0x10},
> > - {0x4797, 0x0e},
> > - {0x479b, 0x0e},
> > };
> >
> > static const struct imx219_reg raw8_framefmt_regs[] = {
> > @@ -1041,6 +953,13 @@ static int imx219_start_streaming(struct imx219 *imx219)
> > if (ret < 0)
> > return ret;
> >
> > + /* Send the Manufacturing Header common to all modes */
>
> It's a table of common settings, not a manufacturing header.
> s/Send the Manufacturing Header/Send all registers that are
I used that term because the data sheet shows the following sequence:
{0x30eb, 0x0c},
{0x30eb, 0x05},
{0x300a, 0xff},
{0x300b, 0xff},
{0x30eb, 0x05},
{0x30eb, 0x09},
It's listed as "Manufacturer Specific Registers" to access
0x3000-5fff, the specific sequence as specified in 3-4. The entire
table is common, but I tried to put comments into the sections to
explain what they do.
>
> Dave
>
> > + ret = imx219_write_regs(imx219, imx219_common_regs, ARRAY_SIZE(imx219_common_regs));
> > + if (ret) {
> > + dev_err(&client->dev, "%s failed to send mfg header\n", __func__);
> > + goto err_rpm_put;
> > + }
> > +
> > /* Apply default values of current mode */
> > reg_list = &imx219->mode->reg_list;
> > ret = imx219_write_regs(imx219, reg_list->regs, reg_list->num_of_regs);
> > --
> > 2.34.1
> >
On Tue, 21 Jun 2022 at 16:58, Adam Ford <aford173@gmail.com> wrote:
>
> On Tue, Jun 21, 2022 at 10:46 AM Dave Stevenson
> <dave.stevenson@raspberrypi.com> wrote:
> >
> > Hi Adam
> >
> > Thanks for the patch, and sorry it's taken me a few days to get to it.
> >
> > On Thu, 16 Jun 2022 at 13:31, Adam Ford <aford173@gmail.com> wrote:
> > >
> > > There are four modes, and each mode has a table of registers.
> > > Some of the registers are common to all modes, so create new
> > > tables for these common registers to reduce duplicate code.
> > >
> > > Signed-off-by: Adam Ford <aford173@gmail.com>
> > > ---
> > > V2: Merge the PLL table into the common table instead of having
> > > two separate, common tables.
> > >
> > > diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
> > > index e10af3f74b38..a43eed143999 100644
> > > --- a/drivers/media/i2c/imx219.c
> > > +++ b/drivers/media/i2c/imx219.c
> > > @@ -145,23 +145,60 @@ struct imx219_mode {
> > > struct imx219_reg_list reg_list;
> > > };
> > >
> > > -/*
> > > - * Register sets lifted off the i2C interface from the Raspberry Pi firmware
> > > - * driver.
> > > - * 3280x2464 = mode 2, 1920x1080 = mode 1, 1640x1232 = mode 4, 640x480 = mode 7.
> > > - */
> > > -static const struct imx219_reg mode_3280x2464_regs[] = {
> > > - {0x0100, 0x00},
> > > +/* To Access Addresses 3000-5fff, send the following commands */
I've just noticed that this comment is still outside the table. The
registers you list as "Access Command Sequence" are the commands to
allow access, the rest are additional configuration.
> > > +static const struct imx219_reg imx219_common_regs[] = {
> > > + {0x0100, 0x00}, /* Mode Select */
> > > +
> > > + /* Access Command Sequence */
> > > {0x30eb, 0x0c},
> > > {0x30eb, 0x05},
> > > {0x300a, 0xff},
> > > {0x300b, 0xff},
> > > {0x30eb, 0x05},
> > > {0x30eb, 0x09},
> > > - {0x0114, 0x01},
> > > - {0x0128, 0x00},
> > > - {0x012a, 0x18},
> > > +
> > > + /* PLL Clock Table */
> > > + {0x0301, 0x05}, /* VTPXCK_DIV */
> > > + {0x0303, 0x01}, /* VTSYSCK_DIV */
> > > + {0x0304, 0x03}, /* PREPLLCK_VT_DIV 0x03 = AUTO set */
> > > + {0x0305, 0x03}, /* PREPLLCK_OP_DIV 0x03 = AUTO set */
> > > + {0x0306, 0x00}, /* PLL_VT_MPY */
> > > + {0x0307, 0x39},
> > > + {0x030b, 0x01}, /* OP_SYS_CLK_DIV */
> > > + {0x030c, 0x00}, /* PLL_OP_MPY */
> > > + {0x030d, 0x72},
> > > +
> > > + /* Undocumented registers */
> > > + {0x455e, 0x00},
> > > + {0x471e, 0x4b},
> > > + {0x4767, 0x0f},
> > > + {0x4750, 0x14},
> > > + {0x4540, 0x00},
> > > + {0x47b4, 0x14},
> > > + {0x4713, 0x30},
> > > + {0x478b, 0x10},
> > > + {0x478f, 0x10},
> > > + {0x4793, 0x10},
> > > + {0x4797, 0x0e},
> > > + {0x479b, 0x0e},
> > > +
> > > + /* Frame Bank Register Group "A" */
> > > + {0x0162, 0x0d}, /* Line_Length_A */
> > > + {0x0163, 0x78},
> >
> > Registers 0x0170 and 0x171 for X_ODD_INC_A and Y_ODD_INC_A are also
> > common to all modes as 0x01. You could have modes with skipping, but
> > currently there are none.
> >
> > > +
> > > + /* Output setup registers */
> > > + {0x0114, 0x01}, /* CSI 2-Lane Mode */
> > > + {0x0128, 0x00}, /* DPHY Auto Mode */
> > > + {0x012a, 0x18}, /* EXCK_Freq */
> > > {0x012b, 0x00},
> > > +};
> > > +
> > > +/*
> > > + * Register sets lifted off the i2C interface from the Raspberry Pi firmware
> > > + * driver.
> > > + * 3280x2464 = mode 2, 1920x1080 = mode 1, 1640x1232 = mode 4, 640x480 = mode 7.
> > > + */
> > > +static const struct imx219_reg mode_3280x2464_regs[] = {
> > > {0x0164, 0x00},
> > > {0x0165, 0x00},
> > > {0x0166, 0x0c},
> > > @@ -176,51 +213,15 @@ static const struct imx219_reg mode_3280x2464_regs[] = {
> > > {0x016f, 0xa0},
> > > {0x0170, 0x01},
> > > {0x0171, 0x01},
> > > - {0x0174, 0x00},
> > > + {0x0174, 0x00}, /* No-Binning */
> > > {0x0175, 0x00},
> > > - {0x0301, 0x05},
> > > - {0x0303, 0x01},
> > > - {0x0304, 0x03},
> > > - {0x0305, 0x03},
> > > - {0x0306, 0x00},
> > > - {0x0307, 0x39},
> > > - {0x030b, 0x01},
> > > - {0x030c, 0x00},
> > > - {0x030d, 0x72},
> > > {0x0624, 0x0c},
> > > {0x0625, 0xd0},
> > > {0x0626, 0x09},
> > > {0x0627, 0xa0},
> > > - {0x455e, 0x00},
> > > - {0x471e, 0x4b},
> > > - {0x4767, 0x0f},
> > > - {0x4750, 0x14},
> > > - {0x4540, 0x00},
> > > - {0x47b4, 0x14},
> > > - {0x4713, 0x30},
> > > - {0x478b, 0x10},
> > > - {0x478f, 0x10},
> > > - {0x4793, 0x10},
> > > - {0x4797, 0x0e},
> > > - {0x479b, 0x0e},
> > > - {0x0162, 0x0d},
> > > - {0x0163, 0x78},
> > > };
> > >
> > > static const struct imx219_reg mode_1920_1080_regs[] = {
> > > - {0x0100, 0x00},
> > > - {0x30eb, 0x05},
> > > - {0x30eb, 0x0c},
> > > - {0x300a, 0xff},
> > > - {0x300b, 0xff},
> > > - {0x30eb, 0x05},
> > > - {0x30eb, 0x09},
> > > - {0x0114, 0x01},
> > > - {0x0128, 0x00},
> > > - {0x012a, 0x18},
> > > - {0x012b, 0x00},
> > > - {0x0162, 0x0d},
> > > - {0x0163, 0x78},
> > > {0x0164, 0x02},
> > > {0x0165, 0xa8},
> > > {0x0166, 0x0a},
> > > @@ -235,47 +236,15 @@ static const struct imx219_reg mode_1920_1080_regs[] = {
> > > {0x016f, 0x38},
> > > {0x0170, 0x01},
> > > {0x0171, 0x01},
> > > - {0x0174, 0x00},
> > > + {0x0174, 0x00}, /* No-Binning */
> > > {0x0175, 0x00},
> > > - {0x0301, 0x05},
> > > - {0x0303, 0x01},
> > > - {0x0304, 0x03},
> > > - {0x0305, 0x03},
> > > - {0x0306, 0x00},
> > > - {0x0307, 0x39},
> > > - {0x030b, 0x01},
> > > - {0x030c, 0x00},
> > > - {0x030d, 0x72},
> > > {0x0624, 0x07},
> > > {0x0625, 0x80},
> > > {0x0626, 0x04},
> > > {0x0627, 0x38},
> > > - {0x455e, 0x00},
> > > - {0x471e, 0x4b},
> > > - {0x4767, 0x0f},
> > > - {0x4750, 0x14},
> > > - {0x4540, 0x00},
> > > - {0x47b4, 0x14},
> > > - {0x4713, 0x30},
> > > - {0x478b, 0x10},
> > > - {0x478f, 0x10},
> > > - {0x4793, 0x10},
> > > - {0x4797, 0x0e},
> > > - {0x479b, 0x0e},
> > > };
> > >
> > > static const struct imx219_reg mode_1640_1232_regs[] = {
> > > - {0x0100, 0x00},
> > > - {0x30eb, 0x0c},
> > > - {0x30eb, 0x05},
> > > - {0x300a, 0xff},
> > > - {0x300b, 0xff},
> > > - {0x30eb, 0x05},
> > > - {0x30eb, 0x09},
> > > - {0x0114, 0x01},
> > > - {0x0128, 0x00},
> > > - {0x012a, 0x18},
> > > - {0x012b, 0x00},
> > > {0x0164, 0x00},
> > > {0x0165, 0x00},
> > > {0x0166, 0x0c},
> > > @@ -290,51 +259,15 @@ static const struct imx219_reg mode_1640_1232_regs[] = {
> > > {0x016f, 0xd0},
> > > {0x0170, 0x01},
> > > {0x0171, 0x01},
> > > - {0x0174, 0x01},
> > > + {0x0174, 0x01}, /* x2-Binning */
> > > {0x0175, 0x01},
> > > - {0x0301, 0x05},
> > > - {0x0303, 0x01},
> > > - {0x0304, 0x03},
> > > - {0x0305, 0x03},
> > > - {0x0306, 0x00},
> > > - {0x0307, 0x39},
> > > - {0x030b, 0x01},
> > > - {0x030c, 0x00},
> > > - {0x030d, 0x72},
> > > {0x0624, 0x06},
> > > {0x0625, 0x68},
> > > {0x0626, 0x04},
> > > {0x0627, 0xd0},
> > > - {0x455e, 0x00},
> > > - {0x471e, 0x4b},
> > > - {0x4767, 0x0f},
> > > - {0x4750, 0x14},
> > > - {0x4540, 0x00},
> > > - {0x47b4, 0x14},
> > > - {0x4713, 0x30},
> > > - {0x478b, 0x10},
> > > - {0x478f, 0x10},
> > > - {0x4793, 0x10},
> > > - {0x4797, 0x0e},
> > > - {0x479b, 0x0e},
> > > - {0x0162, 0x0d},
> > > - {0x0163, 0x78},
> > > };
> > >
> > > static const struct imx219_reg mode_640_480_regs[] = {
> > > - {0x0100, 0x00},
> > > - {0x30eb, 0x05},
> > > - {0x30eb, 0x0c},
> > > - {0x300a, 0xff},
> > > - {0x300b, 0xff},
> > > - {0x30eb, 0x05},
> > > - {0x30eb, 0x09},
> > > - {0x0114, 0x01},
> > > - {0x0128, 0x00},
> > > - {0x012a, 0x18},
> > > - {0x012b, 0x00},
> > > - {0x0162, 0x0d},
> > > - {0x0163, 0x78},
> > > {0x0164, 0x03},
> > > {0x0165, 0xe8},
> > > {0x0166, 0x08},
> > > @@ -349,33 +282,12 @@ static const struct imx219_reg mode_640_480_regs[] = {
> > > {0x016f, 0xe0},
> > > {0x0170, 0x01},
> > > {0x0171, 0x01},
> > > - {0x0174, 0x03},
> > > + {0x0174, 0x03}, /* x2-analog binning */
> > > {0x0175, 0x03},
> > > - {0x0301, 0x05},
> > > - {0x0303, 0x01},
> > > - {0x0304, 0x03},
> > > - {0x0305, 0x03},
> > > - {0x0306, 0x00},
> > > - {0x0307, 0x39},
> > > - {0x030b, 0x01},
> > > - {0x030c, 0x00},
> > > - {0x030d, 0x72},
> > > {0x0624, 0x06},
> > > {0x0625, 0x68},
> > > {0x0626, 0x04},
> > > {0x0627, 0xd0},
> > > - {0x455e, 0x00},
> > > - {0x471e, 0x4b},
> > > - {0x4767, 0x0f},
> > > - {0x4750, 0x14},
> > > - {0x4540, 0x00},
> > > - {0x47b4, 0x14},
> > > - {0x4713, 0x30},
> > > - {0x478b, 0x10},
> > > - {0x478f, 0x10},
> > > - {0x4793, 0x10},
> > > - {0x4797, 0x0e},
> > > - {0x479b, 0x0e},
> > > };
> > >
> > > static const struct imx219_reg raw8_framefmt_regs[] = {
> > > @@ -1041,6 +953,13 @@ static int imx219_start_streaming(struct imx219 *imx219)
> > > if (ret < 0)
> > > return ret;
> > >
> > > + /* Send the Manufacturing Header common to all modes */
> >
> > It's a table of common settings, not a manufacturing header.
> > s/Send the Manufacturing Header/Send all registers that are
>
> I used that term because the data sheet shows the following sequence:
>
> {0x30eb, 0x0c},
> {0x30eb, 0x05},
> {0x300a, 0xff},
> {0x300b, 0xff},
> {0x30eb, 0x05},
> {0x30eb, 0x09},
>
> It's listed as "Manufacturer Specific Registers" to access
> 0x3000-5fff, the specific sequence as specified in 3-4. The entire
> table is common, but I tried to put comments into the sections to
> explain what they do.
That little bit is, yes, and you refer to it as such in the comments
for imx219_common_regs.
At this point you are sending the complete table of
imx219_common_regs, which includes registers outside that 0x3000-5fff
address space.
TBH All registers are manufacturer specific unless you implement the
MIPI CCS or SMIA standards (which, it seems, almost no one does).
> >
> > Dave
> >
> > > + ret = imx219_write_regs(imx219, imx219_common_regs, ARRAY_SIZE(imx219_common_regs));
> > > + if (ret) {
> > > + dev_err(&client->dev, "%s failed to send mfg header\n", __func__);
> > > + goto err_rpm_put;
> > > + }
> > > +
> > > /* Apply default values of current mode */
> > > reg_list = &imx219->mode->reg_list;
> > > ret = imx219_write_regs(imx219, reg_list->regs, reg_list->num_of_regs);
> > > --
> > > 2.34.1
> > >
@@ -145,23 +145,60 @@ struct imx219_mode {
struct imx219_reg_list reg_list;
};
-/*
- * Register sets lifted off the i2C interface from the Raspberry Pi firmware
- * driver.
- * 3280x2464 = mode 2, 1920x1080 = mode 1, 1640x1232 = mode 4, 640x480 = mode 7.
- */
-static const struct imx219_reg mode_3280x2464_regs[] = {
- {0x0100, 0x00},
+/* To Access Addresses 3000-5fff, send the following commands */
+static const struct imx219_reg imx219_common_regs[] = {
+ {0x0100, 0x00}, /* Mode Select */
+
+ /* Access Command Sequence */
{0x30eb, 0x0c},
{0x30eb, 0x05},
{0x300a, 0xff},
{0x300b, 0xff},
{0x30eb, 0x05},
{0x30eb, 0x09},
- {0x0114, 0x01},
- {0x0128, 0x00},
- {0x012a, 0x18},
+
+ /* PLL Clock Table */
+ {0x0301, 0x05}, /* VTPXCK_DIV */
+ {0x0303, 0x01}, /* VTSYSCK_DIV */
+ {0x0304, 0x03}, /* PREPLLCK_VT_DIV 0x03 = AUTO set */
+ {0x0305, 0x03}, /* PREPLLCK_OP_DIV 0x03 = AUTO set */
+ {0x0306, 0x00}, /* PLL_VT_MPY */
+ {0x0307, 0x39},
+ {0x030b, 0x01}, /* OP_SYS_CLK_DIV */
+ {0x030c, 0x00}, /* PLL_OP_MPY */
+ {0x030d, 0x72},
+
+ /* Undocumented registers */
+ {0x455e, 0x00},
+ {0x471e, 0x4b},
+ {0x4767, 0x0f},
+ {0x4750, 0x14},
+ {0x4540, 0x00},
+ {0x47b4, 0x14},
+ {0x4713, 0x30},
+ {0x478b, 0x10},
+ {0x478f, 0x10},
+ {0x4793, 0x10},
+ {0x4797, 0x0e},
+ {0x479b, 0x0e},
+
+ /* Frame Bank Register Group "A" */
+ {0x0162, 0x0d}, /* Line_Length_A */
+ {0x0163, 0x78},
+
+ /* Output setup registers */
+ {0x0114, 0x01}, /* CSI 2-Lane Mode */
+ {0x0128, 0x00}, /* DPHY Auto Mode */
+ {0x012a, 0x18}, /* EXCK_Freq */
{0x012b, 0x00},
+};
+
+/*
+ * Register sets lifted off the i2C interface from the Raspberry Pi firmware
+ * driver.
+ * 3280x2464 = mode 2, 1920x1080 = mode 1, 1640x1232 = mode 4, 640x480 = mode 7.
+ */
+static const struct imx219_reg mode_3280x2464_regs[] = {
{0x0164, 0x00},
{0x0165, 0x00},
{0x0166, 0x0c},
@@ -176,51 +213,15 @@ static const struct imx219_reg mode_3280x2464_regs[] = {
{0x016f, 0xa0},
{0x0170, 0x01},
{0x0171, 0x01},
- {0x0174, 0x00},
+ {0x0174, 0x00}, /* No-Binning */
{0x0175, 0x00},
- {0x0301, 0x05},
- {0x0303, 0x01},
- {0x0304, 0x03},
- {0x0305, 0x03},
- {0x0306, 0x00},
- {0x0307, 0x39},
- {0x030b, 0x01},
- {0x030c, 0x00},
- {0x030d, 0x72},
{0x0624, 0x0c},
{0x0625, 0xd0},
{0x0626, 0x09},
{0x0627, 0xa0},
- {0x455e, 0x00},
- {0x471e, 0x4b},
- {0x4767, 0x0f},
- {0x4750, 0x14},
- {0x4540, 0x00},
- {0x47b4, 0x14},
- {0x4713, 0x30},
- {0x478b, 0x10},
- {0x478f, 0x10},
- {0x4793, 0x10},
- {0x4797, 0x0e},
- {0x479b, 0x0e},
- {0x0162, 0x0d},
- {0x0163, 0x78},
};
static const struct imx219_reg mode_1920_1080_regs[] = {
- {0x0100, 0x00},
- {0x30eb, 0x05},
- {0x30eb, 0x0c},
- {0x300a, 0xff},
- {0x300b, 0xff},
- {0x30eb, 0x05},
- {0x30eb, 0x09},
- {0x0114, 0x01},
- {0x0128, 0x00},
- {0x012a, 0x18},
- {0x012b, 0x00},
- {0x0162, 0x0d},
- {0x0163, 0x78},
{0x0164, 0x02},
{0x0165, 0xa8},
{0x0166, 0x0a},
@@ -235,47 +236,15 @@ static const struct imx219_reg mode_1920_1080_regs[] = {
{0x016f, 0x38},
{0x0170, 0x01},
{0x0171, 0x01},
- {0x0174, 0x00},
+ {0x0174, 0x00}, /* No-Binning */
{0x0175, 0x00},
- {0x0301, 0x05},
- {0x0303, 0x01},
- {0x0304, 0x03},
- {0x0305, 0x03},
- {0x0306, 0x00},
- {0x0307, 0x39},
- {0x030b, 0x01},
- {0x030c, 0x00},
- {0x030d, 0x72},
{0x0624, 0x07},
{0x0625, 0x80},
{0x0626, 0x04},
{0x0627, 0x38},
- {0x455e, 0x00},
- {0x471e, 0x4b},
- {0x4767, 0x0f},
- {0x4750, 0x14},
- {0x4540, 0x00},
- {0x47b4, 0x14},
- {0x4713, 0x30},
- {0x478b, 0x10},
- {0x478f, 0x10},
- {0x4793, 0x10},
- {0x4797, 0x0e},
- {0x479b, 0x0e},
};
static const struct imx219_reg mode_1640_1232_regs[] = {
- {0x0100, 0x00},
- {0x30eb, 0x0c},
- {0x30eb, 0x05},
- {0x300a, 0xff},
- {0x300b, 0xff},
- {0x30eb, 0x05},
- {0x30eb, 0x09},
- {0x0114, 0x01},
- {0x0128, 0x00},
- {0x012a, 0x18},
- {0x012b, 0x00},
{0x0164, 0x00},
{0x0165, 0x00},
{0x0166, 0x0c},
@@ -290,51 +259,15 @@ static const struct imx219_reg mode_1640_1232_regs[] = {
{0x016f, 0xd0},
{0x0170, 0x01},
{0x0171, 0x01},
- {0x0174, 0x01},
+ {0x0174, 0x01}, /* x2-Binning */
{0x0175, 0x01},
- {0x0301, 0x05},
- {0x0303, 0x01},
- {0x0304, 0x03},
- {0x0305, 0x03},
- {0x0306, 0x00},
- {0x0307, 0x39},
- {0x030b, 0x01},
- {0x030c, 0x00},
- {0x030d, 0x72},
{0x0624, 0x06},
{0x0625, 0x68},
{0x0626, 0x04},
{0x0627, 0xd0},
- {0x455e, 0x00},
- {0x471e, 0x4b},
- {0x4767, 0x0f},
- {0x4750, 0x14},
- {0x4540, 0x00},
- {0x47b4, 0x14},
- {0x4713, 0x30},
- {0x478b, 0x10},
- {0x478f, 0x10},
- {0x4793, 0x10},
- {0x4797, 0x0e},
- {0x479b, 0x0e},
- {0x0162, 0x0d},
- {0x0163, 0x78},
};
static const struct imx219_reg mode_640_480_regs[] = {
- {0x0100, 0x00},
- {0x30eb, 0x05},
- {0x30eb, 0x0c},
- {0x300a, 0xff},
- {0x300b, 0xff},
- {0x30eb, 0x05},
- {0x30eb, 0x09},
- {0x0114, 0x01},
- {0x0128, 0x00},
- {0x012a, 0x18},
- {0x012b, 0x00},
- {0x0162, 0x0d},
- {0x0163, 0x78},
{0x0164, 0x03},
{0x0165, 0xe8},
{0x0166, 0x08},
@@ -349,33 +282,12 @@ static const struct imx219_reg mode_640_480_regs[] = {
{0x016f, 0xe0},
{0x0170, 0x01},
{0x0171, 0x01},
- {0x0174, 0x03},
+ {0x0174, 0x03}, /* x2-analog binning */
{0x0175, 0x03},
- {0x0301, 0x05},
- {0x0303, 0x01},
- {0x0304, 0x03},
- {0x0305, 0x03},
- {0x0306, 0x00},
- {0x0307, 0x39},
- {0x030b, 0x01},
- {0x030c, 0x00},
- {0x030d, 0x72},
{0x0624, 0x06},
{0x0625, 0x68},
{0x0626, 0x04},
{0x0627, 0xd0},
- {0x455e, 0x00},
- {0x471e, 0x4b},
- {0x4767, 0x0f},
- {0x4750, 0x14},
- {0x4540, 0x00},
- {0x47b4, 0x14},
- {0x4713, 0x30},
- {0x478b, 0x10},
- {0x478f, 0x10},
- {0x4793, 0x10},
- {0x4797, 0x0e},
- {0x479b, 0x0e},
};
static const struct imx219_reg raw8_framefmt_regs[] = {
@@ -1041,6 +953,13 @@ static int imx219_start_streaming(struct imx219 *imx219)
if (ret < 0)
return ret;
+ /* Send the Manufacturing Header common to all modes */
+ ret = imx219_write_regs(imx219, imx219_common_regs, ARRAY_SIZE(imx219_common_regs));
+ if (ret) {
+ dev_err(&client->dev, "%s failed to send mfg header\n", __func__);
+ goto err_rpm_put;
+ }
+
/* Apply default values of current mode */
reg_list = &imx219->mode->reg_list;
ret = imx219_write_regs(imx219, reg_list->regs, reg_list->num_of_regs);