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path: root/drivers/media/dvb-frontends/dvb-pll.c
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Diffstat (limited to 'drivers/media/dvb-frontends/dvb-pll.c')
-rw-r--r--drivers/media/dvb-frontends/dvb-pll.c820
1 files changed, 820 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/dvb-pll.c b/drivers/media/dvb-frontends/dvb-pll.c
new file mode 100644
index 000000000000..6d8fe8843237
--- /dev/null
+++ b/drivers/media/dvb-frontends/dvb-pll.c
@@ -0,0 +1,820 @@
+/*
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/dvb/frontend.h>
+#include <asm/types.h>
+
+#include "dvb-pll.h"
+
+struct dvb_pll_priv {
+ /* pll number */
+ int nr;
+
+ /* i2c details */
+ int pll_i2c_address;
+ struct i2c_adapter *i2c;
+
+ /* the PLL descriptor */
+ 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 {
+ 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[12];
+};
+
+/* ----------------------------------------------------------- */
+/* descriptions */
+
+static 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;
+}
+
+static 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;
+}
+
+static 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 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 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 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 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;
+}
+
+static 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;
+}
+
+static 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;
+}
+
+static 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 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 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 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)
+ printk(KERN_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;
+}
+
+static 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)
+ printk(KERN_ERR "%s: i2c_transfer failed:%d",
+ __func__, result);
+
+ buf[2] = 0x9e;
+ buf[3] = 0x90;
+
+ return;
+}
+
+/* unknown pll used in Samsung DTOS403IH102A DVB-C tuner */
+static 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 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 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 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 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 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;
+ 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)
+ printk("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)
+ printk("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;
+}
+
+static int dvb_pll_release(struct dvb_frontend *fe)
+{
+ kfree(fe->tuner_priv);
+ fe->tuner_priv = NULL;
+ return 0;
+}
+
+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;
+}
+
+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;
+}
+
+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;
+}
+
+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;
+}
+
+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;
+}
+
+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;
+}
+
+static 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;
+ 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)) {
+ printk("dvb-pll[%d]", priv->nr);
+ if (i2c != NULL)
+ printk(" %d-%04x", i2c_adapter_id(i2c), pll_addr);
+ printk(": id# %d (%s) attached, %s\n", pll_desc_id, desc->name,
+ id[priv->nr] == pll_desc_id ?
+ "insmod option" : "autodetected");
+ }
+
+ return fe;
+}
+EXPORT_SYMBOL(dvb_pll_attach);
+
+MODULE_DESCRIPTION("dvb pll library");
+MODULE_AUTHOR("Gerd Knorr");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-22 07:02:49 +0300