cregit-Linux how code gets into the kernel

Release 4.11 drivers/media/dvb-frontends/dvb-pll.c

/*
 * descriptions + helper functions for simple dvb plls.
 *
 * (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 */


#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/slab.h>
#include <linux/module.h>
#include <linux/dvb/frontend.h>
#include <asm/types.h>

#include "dvb-pll.h"


#define dprintk(fmt, arg...) \
	printk(KERN_DEBUG pr_fmt("%s: " fmt), __func__, ##arg)


struct dvb_pll_priv {
	/* pll number */
	
int nr;

	/* i2c details */
	
int pll_i2c_address;
	
struct i2c_adapter *i2c;

	/* the PLL descriptor */
	
const struct dvb_pll_desc *pll_desc;

	/* cached frequency/bandwidth */
	
u32 frequency;
	
u32 bandwidth;
};


#define DVB_PLL_MAX 64


static unsigned int dvb_pll_devcount;


static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable verbose debug messages");


static unsigned int id[DVB_PLL_MAX] =
	{ [ 0 ... (DVB_PLL_MAX-1) ] = DVB_PLL_UNDEFINED };
module_param_array(id, int, NULL, 0644);
MODULE_PARM_DESC(id, "force pll id to use (DEBUG ONLY)");

/* ----------------------------------------------------------- */


struct dvb_pll_desc {
	
const char *name;
	
u32  min;
	
u32  max;
	
u32  iffreq;
	
void (*set)(struct dvb_frontend *fe, u8 *buf);
	
u8   *initdata;
	
u8   *initdata2;
	
u8   *sleepdata;
	
int  count;
	struct {
		
u32 limit;
		
u32 stepsize;
		
u8  config;
		
u8  cb;
	} 
entries[];
};

/* ----------------------------------------------------------- */
/* descriptions                                                */


static const struct dvb_pll_desc dvb_pll_thomson_dtt7579 = {
	.name  = "Thomson dtt7579",
	.min   = 177000000,
	.max   = 858000000,
	.iffreq= 36166667,
	.sleepdata = (u8[]){ 2, 0xb4, 0x03 },
	.count = 4,
	.entries = {
		{  443250000, 166667, 0xb4, 0x02 },
		{  542000000, 166667, 0xb4, 0x08 },
		{  771000000, 166667, 0xbc, 0x08 },
		{  999999999, 166667, 0xf4, 0x08 },
        },
};


static void thomson_dtt759x_bw(struct dvb_frontend *fe, u8 *buf) { u32 bw = fe->dtv_property_cache.bandwidth_hz; if (bw == 7000000) buf[3] |= 0x10; }

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static const struct dvb_pll_desc dvb_pll_thomson_dtt759x = { .name = "Thomson dtt759x", .min = 177000000, .max = 896000000, .set = thomson_dtt759x_bw, .iffreq= 36166667, .sleepdata = (u8[]){ 2, 0x84, 0x03 }, .count = 5, .entries = { { 264000000, 166667, 0xb4, 0x02 }, { 470000000, 166667, 0xbc, 0x02 }, { 735000000, 166667, 0xbc, 0x08 }, { 835000000, 166667, 0xf4, 0x08 }, { 999999999, 166667, 0xfc, 0x08 }, }, };
static void thomson_dtt7520x_bw(struct dvb_frontend *fe, u8 *buf) { u32 bw = fe->dtv_property_cache.bandwidth_hz; if (bw == 8000000) buf[3] ^= 0x10; }

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static const struct dvb_pll_desc dvb_pll_thomson_dtt7520x = { .name = "Thomson dtt7520x", .min = 185000000, .max = 900000000, .set = thomson_dtt7520x_bw, .iffreq = 36166667, .count = 7, .entries = { { 305000000, 166667, 0xb4, 0x12 }, { 405000000, 166667, 0xbc, 0x12 }, { 445000000, 166667, 0xbc, 0x12 }, { 465000000, 166667, 0xf4, 0x18 }, { 735000000, 166667, 0xfc, 0x18 }, { 835000000, 166667, 0xbc, 0x18 }, { 999999999, 166667, 0xfc, 0x18 }, }, }; static const struct dvb_pll_desc dvb_pll_lg_z201 = { .name = "LG z201", .min = 174000000, .max = 862000000, .iffreq= 36166667, .sleepdata = (u8[]){ 2, 0xbc, 0x03 }, .count = 5, .entries = { { 157500000, 166667, 0xbc, 0x01 }, { 443250000, 166667, 0xbc, 0x02 }, { 542000000, 166667, 0xbc, 0x04 }, { 830000000, 166667, 0xf4, 0x04 }, { 999999999, 166667, 0xfc, 0x04 }, }, }; static const struct dvb_pll_desc dvb_pll_unknown_1 = { .name = "unknown 1", /* used by dntv live dvb-t */ .min = 174000000, .max = 862000000, .iffreq= 36166667, .count = 9, .entries = { { 150000000, 166667, 0xb4, 0x01 }, { 173000000, 166667, 0xbc, 0x01 }, { 250000000, 166667, 0xb4, 0x02 }, { 400000000, 166667, 0xbc, 0x02 }, { 420000000, 166667, 0xf4, 0x02 }, { 470000000, 166667, 0xfc, 0x02 }, { 600000000, 166667, 0xbc, 0x08 }, { 730000000, 166667, 0xf4, 0x08 }, { 999999999, 166667, 0xfc, 0x08 }, }, }; /* Infineon TUA6010XS * used in Thomson Cable Tuner */ static const struct dvb_pll_desc dvb_pll_tua6010xs = { .name = "Infineon TUA6010XS", .min = 44250000, .max = 858000000, .iffreq= 36125000, .count = 3, .entries = { { 115750000, 62500, 0x8e, 0x03 }, { 403250000, 62500, 0x8e, 0x06 }, { 999999999, 62500, 0x8e, 0x85 }, }, }; /* Panasonic env57h1xd5 (some Philips PLL ?) */ static const struct dvb_pll_desc dvb_pll_env57h1xd5 = { .name = "Panasonic ENV57H1XD5", .min = 44250000, .max = 858000000, .iffreq= 36125000, .count = 4, .entries = { { 153000000, 166667, 0xc2, 0x41 }, { 470000000, 166667, 0xc2, 0x42 }, { 526000000, 166667, 0xc2, 0x84 }, { 999999999, 166667, 0xc2, 0xa4 }, }, }; /* Philips TDA6650/TDA6651 * used in Panasonic ENV77H11D5 */
static void tda665x_bw(struct dvb_frontend *fe, u8 *buf) { u32 bw = fe->dtv_property_cache.bandwidth_hz; if (bw == 8000000) buf[3] |= 0x08; }

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static const struct dvb_pll_desc dvb_pll_tda665x = { .name = "Philips TDA6650/TDA6651", .min = 44250000, .max = 858000000, .set = tda665x_bw, .iffreq= 36166667, .initdata = (u8[]){ 4, 0x0b, 0xf5, 0x85, 0xab }, .count = 12, .entries = { { 93834000, 166667, 0xca, 0x61 /* 011 0 0 0 01 */ }, { 123834000, 166667, 0xca, 0xa1 /* 101 0 0 0 01 */ }, { 161000000, 166667, 0xca, 0xa1 /* 101 0 0 0 01 */ }, { 163834000, 166667, 0xca, 0xc2 /* 110 0 0 0 10 */ }, { 253834000, 166667, 0xca, 0x62 /* 011 0 0 0 10 */ }, { 383834000, 166667, 0xca, 0xa2 /* 101 0 0 0 10 */ }, { 443834000, 166667, 0xca, 0xc2 /* 110 0 0 0 10 */ }, { 444000000, 166667, 0xca, 0xc4 /* 110 0 0 1 00 */ }, { 583834000, 166667, 0xca, 0x64 /* 011 0 0 1 00 */ }, { 793834000, 166667, 0xca, 0xa4 /* 101 0 0 1 00 */ }, { 444834000, 166667, 0xca, 0xc4 /* 110 0 0 1 00 */ }, { 861000000, 166667, 0xca, 0xe4 /* 111 0 0 1 00 */ }, } }; /* Infineon TUA6034 * used in LG TDTP E102P */
static void tua6034_bw(struct dvb_frontend *fe, u8 *buf) { u32 bw = fe->dtv_property_cache.bandwidth_hz; if (bw == 7000000) buf[3] |= 0x08; }

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static const struct dvb_pll_desc dvb_pll_tua6034 = { .name = "Infineon TUA6034", .min = 44250000, .max = 858000000, .iffreq= 36166667, .count = 3, .set = tua6034_bw, .entries = { { 174500000, 62500, 0xce, 0x01 }, { 230000000, 62500, 0xce, 0x02 }, { 999999999, 62500, 0xce, 0x04 }, }, }; /* ALPS TDED4 * used in Nebula-Cards and USB boxes */
static void tded4_bw(struct dvb_frontend *fe, u8 *buf) { u32 bw = fe->dtv_property_cache.bandwidth_hz; if (bw == 8000000) buf[3] |= 0x04; }

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static const struct dvb_pll_desc dvb_pll_tded4 = { .name = "ALPS TDED4", .min = 47000000, .max = 863000000, .iffreq= 36166667, .set = tded4_bw, .count = 4, .entries = { { 153000000, 166667, 0x85, 0x01 }, { 470000000, 166667, 0x85, 0x02 }, { 823000000, 166667, 0x85, 0x08 }, { 999999999, 166667, 0x85, 0x88 }, } }; /* ALPS TDHU2 * used in AverTVHD MCE A180 */ static const struct dvb_pll_desc dvb_pll_tdhu2 = { .name = "ALPS TDHU2", .min = 54000000, .max = 864000000, .iffreq= 44000000, .count = 4, .entries = { { 162000000, 62500, 0x85, 0x01 }, { 426000000, 62500, 0x85, 0x02 }, { 782000000, 62500, 0x85, 0x08 }, { 999999999, 62500, 0x85, 0x88 }, } }; /* Samsung TBMV30111IN / TBMV30712IN1 * used in Air2PC ATSC - 2nd generation (nxt2002) */ static const struct dvb_pll_desc dvb_pll_samsung_tbmv = { .name = "Samsung TBMV30111IN / TBMV30712IN1", .min = 54000000, .max = 860000000, .iffreq= 44000000, .count = 6, .entries = { { 172000000, 166667, 0xb4, 0x01 }, { 214000000, 166667, 0xb4, 0x02 }, { 467000000, 166667, 0xbc, 0x02 }, { 721000000, 166667, 0xbc, 0x08 }, { 841000000, 166667, 0xf4, 0x08 }, { 999999999, 166667, 0xfc, 0x02 }, } }; /* * Philips SD1878 Tuner. */ static const struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = { .name = "Philips SD1878", .min = 950000, .max = 2150000, .iffreq= 249, /* zero-IF, offset 249 is to round up */ .count = 4, .entries = { { 1250000, 500, 0xc4, 0x00}, { 1450000, 500, 0xc4, 0x40}, { 2050000, 500, 0xc4, 0x80}, { 2150000, 500, 0xc4, 0xc0}, }, };
static void opera1_bw(struct dvb_frontend *fe, u8 *buf) { struct dtv_frontend_properties *c = &fe->dtv_property_cache; struct dvb_pll_priv *priv = fe->tuner_priv; u32 b_w = (c->symbol_rate * 27) / 32000; struct i2c_msg msg = { .addr = priv->pll_i2c_address, .flags = 0, .buf = buf, .len = 4 }; int result; u8 lpf; if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); result = i2c_transfer(priv->i2c, &msg, 1); if (result != 1) pr_err("%s: i2c_transfer failed:%d", __func__, result); if (b_w <= 10000) lpf = 0xc; else if (b_w <= 12000) lpf = 0x2; else if (b_w <= 14000) lpf = 0xa; else if (b_w <= 16000) lpf = 0x6; else if (b_w <= 18000) lpf = 0xe; else if (b_w <= 20000) lpf = 0x1; else if (b_w <= 22000) lpf = 0x9; else if (b_w <= 24000) lpf = 0x5; else if (b_w <= 26000) lpf = 0xd; else if (b_w <= 28000) lpf = 0x3; else lpf = 0xb; buf[2] ^= 0x1c; /* Flip bits 3-5 */ /* Set lpf */ buf[2] |= ((lpf >> 2) & 0x3) << 3; buf[3] |= (lpf & 0x3) << 2; return; }

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static const struct dvb_pll_desc dvb_pll_opera1 = { .name = "Opera Tuner", .min = 900000, .max = 2250000, .initdata = (u8[]){ 4, 0x08, 0xe5, 0xe1, 0x00 }, .initdata2 = (u8[]){ 4, 0x08, 0xe5, 0xe5, 0x00 }, .iffreq= 0, .set = opera1_bw, .count = 8, .entries = { { 1064000, 500, 0xf9, 0xc2 }, { 1169000, 500, 0xf9, 0xe2 }, { 1299000, 500, 0xf9, 0x20 }, { 1444000, 500, 0xf9, 0x40 }, { 1606000, 500, 0xf9, 0x60 }, { 1777000, 500, 0xf9, 0x80 }, { 1941000, 500, 0xf9, 0xa0 }, { 2250000, 500, 0xf9, 0xc0 }, } };
static void samsung_dtos403ih102a_set(struct dvb_frontend *fe, u8 *buf) { struct dvb_pll_priv *priv = fe->tuner_priv; struct i2c_msg msg = { .addr = priv->pll_i2c_address, .flags = 0, .buf = buf, .len = 4 }; int result; if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); result = i2c_transfer(priv->i2c, &msg, 1); if (result != 1) pr_err("%s: i2c_transfer failed:%d", __func__, result); buf[2] = 0x9e; buf[3] = 0x90; return; }

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/* unknown pll used in Samsung DTOS403IH102A DVB-C tuner */ static const struct dvb_pll_desc dvb_pll_samsung_dtos403ih102a = { .name = "Samsung DTOS403IH102A", .min = 44250000, .max = 858000000, .iffreq = 36125000, .count = 8, .set = samsung_dtos403ih102a_set, .entries = { { 135000000, 62500, 0xbe, 0x01 }, { 177000000, 62500, 0xf6, 0x01 }, { 370000000, 62500, 0xbe, 0x02 }, { 450000000, 62500, 0xf6, 0x02 }, { 466000000, 62500, 0xfe, 0x02 }, { 538000000, 62500, 0xbe, 0x08 }, { 826000000, 62500, 0xf6, 0x08 }, { 999999999, 62500, 0xfe, 0x08 }, } }; /* Samsung TDTC9251DH0 DVB-T NIM, as used on AirStar 2 */ static const struct dvb_pll_desc dvb_pll_samsung_tdtc9251dh0 = { .name = "Samsung TDTC9251DH0", .min = 48000000, .max = 863000000, .iffreq = 36166667, .count = 3, .entries = { { 157500000, 166667, 0xcc, 0x09 }, { 443000000, 166667, 0xcc, 0x0a }, { 863000000, 166667, 0xcc, 0x08 }, } }; /* Samsung TBDU18132 DVB-S NIM with TSA5059 PLL, used in SkyStar2 DVB-S 2.3 */ static const struct dvb_pll_desc dvb_pll_samsung_tbdu18132 = { .name = "Samsung TBDU18132", .min = 950000, .max = 2150000, /* guesses */ .iffreq = 0, .count = 2, .entries = { { 1550000, 125, 0x84, 0x82 }, { 4095937, 125, 0x84, 0x80 }, } /* TSA5059 PLL has a 17 bit divisor rather than the 15 bits supported * by this driver. The two extra bits are 0x60 in the third byte. 15 * bits is enough for over 4 GHz, which is enough to cover the range * of this tuner. We could use the additional divisor bits by adding * more entries, e.g. { 0x0ffff * 125 + 125/2, 125, 0x84 | 0x20, }, { 0x17fff * 125 + 125/2, 125, 0x84 | 0x40, }, { 0x1ffff * 125 + 125/2, 125, 0x84 | 0x60, }, */ }; /* Samsung TBMU24112 DVB-S NIM with SL1935 zero-IF tuner */ static const struct dvb_pll_desc dvb_pll_samsung_tbmu24112 = { .name = "Samsung TBMU24112", .min = 950000, .max = 2150000, /* guesses */ .iffreq = 0, .count = 2, .entries = { { 1500000, 125, 0x84, 0x18 }, { 9999999, 125, 0x84, 0x08 }, } }; /* Alps TDEE4 DVB-C NIM, used on Cablestar 2 */ /* byte 4 : 1 * * AGD R3 R2 R1 R0 * byte 5 : C1 * RE RTS BS4 BS3 BS2 BS1 * AGD = 1, R3 R2 R1 R0 = 0 1 0 1 => byte 4 = 1**10101 = 0x95 * Range(MHz) C1 * RE RTS BS4 BS3 BS2 BS1 Byte 5 * 47 - 153 0 * 0 0 0 0 0 1 0x01 * 153 - 430 0 * 0 0 0 0 1 0 0x02 * 430 - 822 0 * 0 0 1 0 0 0 0x08 * 822 - 862 1 * 0 0 1 0 0 0 0x88 */ static const struct dvb_pll_desc dvb_pll_alps_tdee4 = { .name = "ALPS TDEE4", .min = 47000000, .max = 862000000, .iffreq = 36125000, .count = 4, .entries = { { 153000000, 62500, 0x95, 0x01 }, { 430000000, 62500, 0x95, 0x02 }, { 822000000, 62500, 0x95, 0x08 }, { 999999999, 62500, 0x95, 0x88 }, } }; /* ----------------------------------------------------------- */ static const struct dvb_pll_desc *pll_list[] = { [DVB_PLL_UNDEFINED] = NULL, [DVB_PLL_THOMSON_DTT7579] = &dvb_pll_thomson_dtt7579, [DVB_PLL_THOMSON_DTT759X] = &dvb_pll_thomson_dtt759x, [DVB_PLL_THOMSON_DTT7520X] = &dvb_pll_thomson_dtt7520x, [DVB_PLL_LG_Z201] = &dvb_pll_lg_z201, [DVB_PLL_UNKNOWN_1] = &dvb_pll_unknown_1, [DVB_PLL_TUA6010XS] = &dvb_pll_tua6010xs, [DVB_PLL_ENV57H1XD5] = &dvb_pll_env57h1xd5, [DVB_PLL_TUA6034] = &dvb_pll_tua6034, [DVB_PLL_TDA665X] = &dvb_pll_tda665x, [DVB_PLL_TDED4] = &dvb_pll_tded4, [DVB_PLL_TDEE4] = &dvb_pll_alps_tdee4, [DVB_PLL_TDHU2] = &dvb_pll_tdhu2, [DVB_PLL_SAMSUNG_TBMV] = &dvb_pll_samsung_tbmv, [DVB_PLL_PHILIPS_SD1878_TDA8261] = &dvb_pll_philips_sd1878_tda8261, [DVB_PLL_OPERA1] = &dvb_pll_opera1, [DVB_PLL_SAMSUNG_DTOS403IH102A] = &dvb_pll_samsung_dtos403ih102a, [DVB_PLL_SAMSUNG_TDTC9251DH0] = &dvb_pll_samsung_tdtc9251dh0, [DVB_PLL_SAMSUNG_TBDU18132] = &dvb_pll_samsung_tbdu18132, [DVB_PLL_SAMSUNG_TBMU24112] = &dvb_pll_samsung_tbmu24112, }; /* ----------------------------------------------------------- */ /* code */
static int dvb_pll_configure(struct dvb_frontend *fe, u8 *buf, const u32 frequency) { struct dvb_pll_priv *priv = fe->tuner_priv; const struct dvb_pll_desc *desc = priv->pll_desc; u32 div; int i; if (frequency && (frequency < desc->min || frequency > desc->max)) return -EINVAL; for (i = 0; i < desc->count; i++) { if (frequency > desc->entries[i].limit) continue; break; } if (debug) dprintk("pll: %s: freq=%d | i=%d/%d\n", desc->name, frequency, i, desc->count); if (i == desc->count) return -EINVAL; div = (frequency + desc->iffreq + desc->entries[i].stepsize/2) / desc->entries[i].stepsize; buf[0] = div >> 8; buf[1] = div & 0xff; buf[2] = desc->entries[i].config; buf[3] = desc->entries[i].cb; if (desc->set) desc->set(fe, buf); if (debug) dprintk("pll: %s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n", desc->name, div, buf[0], buf[1], buf[2], buf[3]); // calculate the frequency we set it to return (div * desc->entries[i].stepsize) - desc->iffreq; }

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Mauro Carvalho Chehab41.45%216.67%
Joe Perches10.36%18.33%
Total276100.00%12100.00%


static void dvb_pll_release(struct dvb_frontend *fe) { kfree(fe->tuner_priv); fe->tuner_priv = NULL; }

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static int dvb_pll_sleep(struct dvb_frontend *fe) { struct dvb_pll_priv *priv = fe->tuner_priv; if (priv->i2c == NULL) return -EINVAL; if (priv->pll_desc->sleepdata) { struct i2c_msg msg = { .flags = 0, .addr = priv->pll_i2c_address, .buf = priv->pll_desc->sleepdata + 1, .len = priv->pll_desc->sleepdata[0] }; int result; if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) { return result; } return 0; } /* Shouldn't be called when initdata is NULL, maybe BUG()? */ return -EINVAL; }

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static int dvb_pll_set_params(struct dvb_frontend *fe) { struct dtv_frontend_properties *c = &fe->dtv_property_cache; struct dvb_pll_priv *priv = fe->tuner_priv; u8 buf[4]; struct i2c_msg msg = { .addr = priv->pll_i2c_address, .flags = 0, .buf = buf, .len = sizeof(buf) }; int result; u32 frequency = 0; if (priv->i2c == NULL) return -EINVAL; result = dvb_pll_configure(fe, buf, c->frequency); if (result < 0) return result; else frequency = result; if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) { return result; } priv->frequency = frequency; priv->bandwidth = c->bandwidth_hz; return 0; }

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Total175100.00%6100.00%


static int dvb_pll_calc_regs(struct dvb_frontend *fe, u8 *buf, int buf_len) { struct dtv_frontend_properties *c = &fe->dtv_property_cache; struct dvb_pll_priv *priv = fe->tuner_priv; int result; u32 frequency = 0; if (buf_len < 5) return -EINVAL; result = dvb_pll_configure(fe, buf + 1, c->frequency); if (result < 0) return result; else frequency = result; buf[0] = priv->pll_i2c_address; priv->frequency = frequency; priv->bandwidth = c->bandwidth_hz; return 5; }

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static int dvb_pll_get_frequency(struct dvb_frontend *fe, u32 *frequency) { struct dvb_pll_priv *priv = fe->tuner_priv; *frequency = priv->frequency; return 0; }

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static int dvb_pll_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) { struct dvb_pll_priv *priv = fe->tuner_priv; *bandwidth = priv->bandwidth; return 0; }

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Andrew de Quincey34100.00%1100.00%
Total34100.00%1100.00%


static int dvb_pll_init(struct dvb_frontend *fe) { struct dvb_pll_priv *priv = fe->tuner_priv; if (priv->i2c == NULL) return -EINVAL; if (priv->pll_desc->initdata) { struct i2c_msg msg = { .flags = 0, .addr = priv->pll_i2c_address, .buf = priv->pll_desc->initdata + 1, .len = priv->pll_desc->initdata[0] }; int result; if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); result = i2c_transfer(priv->i2c, &msg, 1); if (result != 1) return result; if (priv->pll_desc->initdata2) { msg.buf = priv->pll_desc->initdata2 + 1; msg.len = priv->pll_desc->initdata2[0]; if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); result = i2c_transfer(priv->i2c, &msg, 1); if (result != 1) return result; } return 0; } /* Shouldn't be called when initdata is NULL, maybe BUG()? */ return -EINVAL; }

Contributors

PersonTokensPropCommitsCommitProp
Trent Piepho13563.38%150.00%
Malcolm Priestley7836.62%150.00%
Total213100.00%2100.00%

static const struct dvb_tuner_ops dvb_pll_tuner_ops = { .release = dvb_pll_release, .sleep = dvb_pll_sleep, .init = dvb_pll_init, .set_params = dvb_pll_set_params, .calc_regs = dvb_pll_calc_regs, .get_frequency = dvb_pll_get_frequency, .get_bandwidth = dvb_pll_get_bandwidth, };
struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr, struct i2c_adapter *i2c, unsigned int pll_desc_id) { u8 b1 [] = { 0 }; struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD, .buf = b1, .len = 1 }; struct dvb_pll_priv *priv = NULL; int ret; const struct dvb_pll_desc *desc; if ((id[dvb_pll_devcount] > DVB_PLL_UNDEFINED) && (id[dvb_pll_devcount] < ARRAY_SIZE(pll_list))) pll_desc_id = id[dvb_pll_devcount]; BUG_ON(pll_desc_id < 1 || pll_desc_id >= ARRAY_SIZE(pll_list)); desc = pll_list[pll_desc_id]; if (i2c != NULL) { if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); ret = i2c_transfer (i2c, &msg, 1); if (ret != 1) return NULL; if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); } priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL); if (priv == NULL) return NULL; priv->pll_i2c_address = pll_addr; priv->i2c = i2c; priv->pll_desc = desc; priv->nr = dvb_pll_devcount++; memcpy(&fe->ops.tuner_ops, &dvb_pll_tuner_ops, sizeof(struct dvb_tuner_ops)); strncpy(fe->ops.tuner_ops.info.name, desc->name, sizeof(fe->ops.tuner_ops.info.name)); fe->ops.tuner_ops.info.frequency_min = desc->min; fe->ops.tuner_ops.info.frequency_max = desc->max; if (!desc->initdata) fe->ops.tuner_ops.init = NULL; if (!desc->sleepdata) fe->ops.tuner_ops.sleep = NULL; fe->tuner_priv = priv; if ((debug) || (id[priv->nr] == pll_desc_id)) { dprintk("dvb-pll[%d]", priv->nr); if (i2c != NULL) pr_cont(" %d-%04x", i2c_adapter_id(i2c), pll_addr); pr_cont(": id# %d (%s) attached, %s\n", pll_desc_id, desc->name, id[priv->nr] == pll_desc_id ? "insmod option" : "autodetected"); } return fe; }

Contributors

PersonTokensPropCommitsCommitProp
Andrew de Quincey24156.18%531.25%
Michael Ira Krufky13331.00%425.00%
Trent Piepho4710.96%425.00%
Patrick Boettcher40.93%16.25%
Mauro Carvalho Chehab30.70%16.25%
Joe Perches10.23%16.25%
Total429100.00%16100.00%

EXPORT_SYMBOL(dvb_pll_attach); MODULE_DESCRIPTION("dvb pll library"); MODULE_AUTHOR("Gerd Knorr"); MODULE_LICENSE("GPL");

Overall Contributors

PersonTokensPropCommitsCommitProp
Andrew de Quincey67915.79%713.21%
Trent Piepho66915.56%1120.75%
Gerd Knorr57413.35%11.89%
Michael Ira Krufky54812.74%1426.42%
Johannes Stezenbach3919.09%11.89%
Malcolm Priestley3848.93%11.89%
Antti Palosaari2475.74%11.89%
Patrice Chotard1563.63%11.89%
Kirk Lapray1543.58%11.89%
Mauro Carvalho Chehab1463.40%47.55%
Marco Gittler1222.84%11.89%
Patrick Boettcher1032.40%23.77%
Regis Prevot711.65%11.89%
Joe Perches250.58%11.89%
Gregory B Frost130.30%11.89%
Christopher Pascoe120.28%11.89%
Tejun Heo30.07%11.89%
Manu Abraham10.02%11.89%
Julia Lawall10.02%11.89%
Sakari Ailus10.02%11.89%
Total4300100.00%53100.00%
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