drivers/media/tuners/e4000_priv.h

Source file repositories/reference/linux-study-clean/drivers/media/tuners/e4000_priv.h

File Facts

System
Linux kernel
Corpus path
drivers/media/tuners/e4000_priv.h
Extension
.h
Size
4717 bytes
Lines
220
Domain
Driver Families
Bucket
drivers/media
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct e4000_dev {
	struct i2c_client *client;
	struct regmap *regmap;
	u32 clk;
	struct dvb_frontend *fe;
	struct v4l2_subdev sd;
	bool active;
	unsigned int f_frequency;
	unsigned int f_bandwidth;

	/* Controls */
	struct v4l2_ctrl_handler hdl;
	struct v4l2_ctrl *bandwidth_auto;
	struct v4l2_ctrl *bandwidth;
	struct v4l2_ctrl *lna_gain_auto;
	struct v4l2_ctrl *lna_gain;
	struct v4l2_ctrl *mixer_gain_auto;
	struct v4l2_ctrl *mixer_gain;
	struct v4l2_ctrl *if_gain_auto;
	struct v4l2_ctrl *if_gain;
	struct v4l2_ctrl *pll_lock;
};

struct e4000_pll {
	u32 freq;
	u8 div_out_reg;
	u8 div_out;
};

static const struct e4000_pll e4000_pll_lut[] = {
/*                                      VCO min    VCO max */
	{   72400000, 0x0f, 48 }, /* .......... 3475200000 */
	{   81200000, 0x0e, 40 }, /* 2896000000 3248000000 */
	{  108300000, 0x0d, 32 }, /* 2598400000 3465600000 */
	{  162500000, 0x0c, 24 }, /* 2599200000 3900000000 */
	{  216600000, 0x0b, 16 }, /* 2600000000 3465600000 */
	{  325000000, 0x0a, 12 }, /* 2599200000 3900000000 */
	{  350000000, 0x09,  8 }, /* 2600000000 2800000000 */
	{  432000000, 0x03,  8 }, /* 2800000000 3456000000 */
	{  667000000, 0x02,  6 }, /* 2592000000 4002000000 */
	{ 1200000000, 0x01,  4 }, /* 2668000000 4800000000 */
	{ 0xffffffff, 0x00,  2 }, /* 2400000000 .......... */
};

struct e4000_lna_filter {
	u32 freq;
	u8 val;
};

static const struct e4000_lna_filter e400_lna_filter_lut[] = {
	{  370000000,  0 },
	{  392500000,  1 },
	{  415000000,  2 },
	{  437500000,  3 },
	{  462500000,  4 },
	{  490000000,  5 },
	{  522500000,  6 },
	{  557500000,  7 },
	{  595000000,  8 },
	{  642500000,  9 },
	{  695000000, 10 },
	{  740000000, 11 },
	{  800000000, 12 },
	{  865000000, 13 },
	{  930000000, 14 },
	{ 1000000000, 15 },
	{ 1310000000,  0 },
	{ 1340000000,  1 },
	{ 1385000000,  2 },
	{ 1427500000,  3 },
	{ 1452500000,  4 },
	{ 1475000000,  5 },
	{ 1510000000,  6 },
	{ 1545000000,  7 },
	{ 1575000000,  8 },
	{ 1615000000,  9 },
	{ 1650000000, 10 },
	{ 1670000000, 11 },
	{ 1690000000, 12 },
	{ 1710000000, 13 },
	{ 1735000000, 14 },
	{ 0xffffffff, 15 },
};

struct e4000_band {
	u32 freq;
	u8 reg07_val;
	u8 reg78_val;
};

Annotation

Implementation Notes