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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 06:13:41 +0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 06:13:41 +0400
commit9a0bf528b4d66b605f02634236da085595c22101 (patch)
treee9ff008ff15c3ee5add6d41173ee5e61939480dd /drivers/media/dvb/frontends/s5h1420.c
parent3d6c2bc08ac4f75bf3597740357c98f2207ca412 (diff)
downloadlinux-9a0bf528b4d66b605f02634236da085595c22101.tar.xz
[media] move the dvb/frontends to drivers/media/dvb-frontends
Raise the DVB frontends one level up, as the intention is to remove the drivers/media/dvb directory. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/frontends/s5h1420.c')
-rw-r--r--drivers/media/dvb/frontends/s5h1420.c960
1 files changed, 0 insertions, 960 deletions
diff --git a/drivers/media/dvb/frontends/s5h1420.c b/drivers/media/dvb/frontends/s5h1420.c
deleted file mode 100644
index e2fec9ebf947..000000000000
--- a/drivers/media/dvb/frontends/s5h1420.c
+++ /dev/null
@@ -1,960 +0,0 @@
-/*
- * Driver for
- * Samsung S5H1420 and
- * PnpNetwork PN1010 QPSK Demodulator
- *
- * Copyright (C) 2005 Andrew de Quincey <adq_dvb@lidskialf.net>
- * Copyright (C) 2005-8 Patrick Boettcher <pb@linuxtv.org>
- *
- * 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/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/jiffies.h>
-#include <asm/div64.h>
-
-#include <linux/i2c.h>
-
-
-#include "dvb_frontend.h"
-#include "s5h1420.h"
-#include "s5h1420_priv.h"
-
-#define TONE_FREQ 22000
-
-struct s5h1420_state {
- struct i2c_adapter* i2c;
- const struct s5h1420_config* config;
-
- struct dvb_frontend frontend;
- struct i2c_adapter tuner_i2c_adapter;
-
- u8 CON_1_val;
-
- u8 postlocked:1;
- u32 fclk;
- u32 tunedfreq;
- fe_code_rate_t fec_inner;
- u32 symbol_rate;
-
- /* FIXME: ugly workaround for flexcop's incapable i2c-controller
- * it does not support repeated-start, workaround: write addr-1
- * and then read
- */
- u8 shadow[256];
-};
-
-static u32 s5h1420_getsymbolrate(struct s5h1420_state* state);
-static int s5h1420_get_tune_settings(struct dvb_frontend* fe,
- struct dvb_frontend_tune_settings* fesettings);
-
-
-static int debug;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "enable debugging");
-
-#define dprintk(x...) do { \
- if (debug) \
- printk(KERN_DEBUG "S5H1420: " x); \
-} while (0)
-
-static u8 s5h1420_readreg(struct s5h1420_state *state, u8 reg)
-{
- int ret;
- u8 b[2];
- struct i2c_msg msg[] = {
- { .addr = state->config->demod_address, .flags = 0, .buf = b, .len = 2 },
- { .addr = state->config->demod_address, .flags = 0, .buf = &reg, .len = 1 },
- { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b, .len = 1 },
- };
-
- b[0] = (reg - 1) & 0xff;
- b[1] = state->shadow[(reg - 1) & 0xff];
-
- if (state->config->repeated_start_workaround) {
- ret = i2c_transfer(state->i2c, msg, 3);
- if (ret != 3)
- return ret;
- } else {
- ret = i2c_transfer(state->i2c, &msg[1], 1);
- if (ret != 1)
- return ret;
- ret = i2c_transfer(state->i2c, &msg[2], 1);
- if (ret != 1)
- return ret;
- }
-
- /* dprintk("rd(%02x): %02x %02x\n", state->config->demod_address, reg, b[0]); */
-
- return b[0];
-}
-
-static int s5h1420_writereg (struct s5h1420_state* state, u8 reg, u8 data)
-{
- u8 buf[] = { reg, data };
- struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };
- int err;
-
- /* dprintk("wr(%02x): %02x %02x\n", state->config->demod_address, reg, data); */
- err = i2c_transfer(state->i2c, &msg, 1);
- if (err != 1) {
- dprintk("%s: writereg error (err == %i, reg == 0x%02x, data == 0x%02x)\n", __func__, err, reg, data);
- return -EREMOTEIO;
- }
- state->shadow[reg] = data;
-
- return 0;
-}
-
-static int s5h1420_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltage)
-{
- struct s5h1420_state* state = fe->demodulator_priv;
-
- dprintk("enter %s\n", __func__);
-
- switch(voltage) {
- case SEC_VOLTAGE_13:
- s5h1420_writereg(state, 0x3c,
- (s5h1420_readreg(state, 0x3c) & 0xfe) | 0x02);
- break;
-
- case SEC_VOLTAGE_18:
- s5h1420_writereg(state, 0x3c, s5h1420_readreg(state, 0x3c) | 0x03);
- break;
-
- case SEC_VOLTAGE_OFF:
- s5h1420_writereg(state, 0x3c, s5h1420_readreg(state, 0x3c) & 0xfd);
- break;
- }
-
- dprintk("leave %s\n", __func__);
- return 0;
-}
-
-static int s5h1420_set_tone (struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
-{
- struct s5h1420_state* state = fe->demodulator_priv;
-
- dprintk("enter %s\n", __func__);
- switch(tone) {
- case SEC_TONE_ON:
- s5h1420_writereg(state, 0x3b,
- (s5h1420_readreg(state, 0x3b) & 0x74) | 0x08);
- break;
-
- case SEC_TONE_OFF:
- s5h1420_writereg(state, 0x3b,
- (s5h1420_readreg(state, 0x3b) & 0x74) | 0x01);
- break;
- }
- dprintk("leave %s\n", __func__);
-
- return 0;
-}
-
-static int s5h1420_send_master_cmd (struct dvb_frontend* fe,
- struct dvb_diseqc_master_cmd* cmd)
-{
- struct s5h1420_state* state = fe->demodulator_priv;
- u8 val;
- int i;
- unsigned long timeout;
- int result = 0;
-
- dprintk("enter %s\n", __func__);
- if (cmd->msg_len > 8)
- return -EINVAL;
-
- /* setup for DISEQC */
- val = s5h1420_readreg(state, 0x3b);
- s5h1420_writereg(state, 0x3b, 0x02);
- msleep(15);
-
- /* write the DISEQC command bytes */
- for(i=0; i< cmd->msg_len; i++) {
- s5h1420_writereg(state, 0x3d + i, cmd->msg[i]);
- }
-
- /* kick off transmission */
- s5h1420_writereg(state, 0x3b, s5h1420_readreg(state, 0x3b) |
- ((cmd->msg_len-1) << 4) | 0x08);
-
- /* wait for transmission to complete */
- timeout = jiffies + ((100*HZ) / 1000);
- while(time_before(jiffies, timeout)) {
- if (!(s5h1420_readreg(state, 0x3b) & 0x08))
- break;
-
- msleep(5);
- }
- if (time_after(jiffies, timeout))
- result = -ETIMEDOUT;
-
- /* restore original settings */
- s5h1420_writereg(state, 0x3b, val);
- msleep(15);
- dprintk("leave %s\n", __func__);
- return result;
-}
-
-static int s5h1420_recv_slave_reply (struct dvb_frontend* fe,
- struct dvb_diseqc_slave_reply* reply)
-{
- struct s5h1420_state* state = fe->demodulator_priv;
- u8 val;
- int i;
- int length;
- unsigned long timeout;
- int result = 0;
-
- /* setup for DISEQC receive */
- val = s5h1420_readreg(state, 0x3b);
- s5h1420_writereg(state, 0x3b, 0x82); /* FIXME: guess - do we need to set DIS_RDY(0x08) in receive mode? */
- msleep(15);
-
- /* wait for reception to complete */
- timeout = jiffies + ((reply->timeout*HZ) / 1000);
- while(time_before(jiffies, timeout)) {
- if (!(s5h1420_readreg(state, 0x3b) & 0x80)) /* FIXME: do we test DIS_RDY(0x08) or RCV_EN(0x80)? */
- break;
-
- msleep(5);
- }
- if (time_after(jiffies, timeout)) {
- result = -ETIMEDOUT;
- goto exit;
- }
-
- /* check error flag - FIXME: not sure what this does - docs do not describe
- * beyond "error flag for diseqc receive data :( */
- if (s5h1420_readreg(state, 0x49)) {
- result = -EIO;
- goto exit;
- }
-
- /* check length */
- length = (s5h1420_readreg(state, 0x3b) & 0x70) >> 4;
- if (length > sizeof(reply->msg)) {
- result = -EOVERFLOW;
- goto exit;
- }
- reply->msg_len = length;
-
- /* extract data */
- for(i=0; i< length; i++) {
- reply->msg[i] = s5h1420_readreg(state, 0x3d + i);
- }
-
-exit:
- /* restore original settings */
- s5h1420_writereg(state, 0x3b, val);
- msleep(15);
- return result;
-}
-
-static int s5h1420_send_burst (struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd)
-{
- struct s5h1420_state* state = fe->demodulator_priv;
- u8 val;
- int result = 0;
- unsigned long timeout;
-
- /* setup for tone burst */
- val = s5h1420_readreg(state, 0x3b);
- s5h1420_writereg(state, 0x3b, (s5h1420_readreg(state, 0x3b) & 0x70) | 0x01);
-
- /* set value for B position if requested */
- if (minicmd == SEC_MINI_B) {
- s5h1420_writereg(state, 0x3b, s5h1420_readreg(state, 0x3b) | 0x04);
- }
- msleep(15);
-
- /* start transmission */
- s5h1420_writereg(state, 0x3b, s5h1420_readreg(state, 0x3b) | 0x08);
-
- /* wait for transmission to complete */
- timeout = jiffies + ((100*HZ) / 1000);
- while(time_before(jiffies, timeout)) {
- if (!(s5h1420_readreg(state, 0x3b) & 0x08))
- break;
-
- msleep(5);
- }
- if (time_after(jiffies, timeout))
- result = -ETIMEDOUT;
-
- /* restore original settings */
- s5h1420_writereg(state, 0x3b, val);
- msleep(15);
- return result;
-}
-
-static fe_status_t s5h1420_get_status_bits(struct s5h1420_state* state)
-{
- u8 val;
- fe_status_t status = 0;
-
- val = s5h1420_readreg(state, 0x14);
- if (val & 0x02)
- status |= FE_HAS_SIGNAL;
- if (val & 0x01)
- status |= FE_HAS_CARRIER;
- val = s5h1420_readreg(state, 0x36);
- if (val & 0x01)
- status |= FE_HAS_VITERBI;
- if (val & 0x20)
- status |= FE_HAS_SYNC;
- if (status == (FE_HAS_SIGNAL|FE_HAS_CARRIER|FE_HAS_VITERBI|FE_HAS_SYNC))
- status |= FE_HAS_LOCK;
-
- return status;
-}
-
-static int s5h1420_read_status(struct dvb_frontend* fe, fe_status_t* status)
-{
- struct s5h1420_state* state = fe->demodulator_priv;
- u8 val;
-
- dprintk("enter %s\n", __func__);
-
- if (status == NULL)
- return -EINVAL;
-
- /* determine lock state */
- *status = s5h1420_get_status_bits(state);
-
- /* fix for FEC 5/6 inversion issue - if it doesn't quite lock, invert
- the inversion, wait a bit and check again */
- if (*status == (FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI)) {
- val = s5h1420_readreg(state, Vit10);
- if ((val & 0x07) == 0x03) {
- if (val & 0x08)
- s5h1420_writereg(state, Vit09, 0x13);
- else
- s5h1420_writereg(state, Vit09, 0x1b);
-
- /* wait a bit then update lock status */
- mdelay(200);
- *status = s5h1420_get_status_bits(state);
- }
- }
-
- /* perform post lock setup */
- if ((*status & FE_HAS_LOCK) && !state->postlocked) {
-
- /* calculate the data rate */
- u32 tmp = s5h1420_getsymbolrate(state);
- switch (s5h1420_readreg(state, Vit10) & 0x07) {
- case 0: tmp = (tmp * 2 * 1) / 2; break;
- case 1: tmp = (tmp * 2 * 2) / 3; break;
- case 2: tmp = (tmp * 2 * 3) / 4; break;
- case 3: tmp = (tmp * 2 * 5) / 6; break;
- case 4: tmp = (tmp * 2 * 6) / 7; break;
- case 5: tmp = (tmp * 2 * 7) / 8; break;
- }
-
- if (tmp == 0) {
- printk(KERN_ERR "s5h1420: avoided division by 0\n");
- tmp = 1;
- }
- tmp = state->fclk / tmp;
-
-
- /* set the MPEG_CLK_INTL for the calculated data rate */
- if (tmp < 2)
- val = 0x00;
- else if (tmp < 5)
- val = 0x01;
- else if (tmp < 9)
- val = 0x02;
- else if (tmp < 13)
- val = 0x03;
- else if (tmp < 17)
- val = 0x04;
- else if (tmp < 25)
- val = 0x05;
- else if (tmp < 33)
- val = 0x06;
- else
- val = 0x07;
- dprintk("for MPEG_CLK_INTL %d %x\n", tmp, val);
-
- s5h1420_writereg(state, FEC01, 0x18);
- s5h1420_writereg(state, FEC01, 0x10);
- s5h1420_writereg(state, FEC01, val);
-
- /* Enable "MPEG_Out" */
- val = s5h1420_readreg(state, Mpeg02);
- s5h1420_writereg(state, Mpeg02, val | (1 << 6));
-
- /* kicker disable */
- val = s5h1420_readreg(state, QPSK01) & 0x7f;
- s5h1420_writereg(state, QPSK01, val);
-
- /* DC freeze TODO it was never activated by default or it can stay activated */
-
- if (s5h1420_getsymbolrate(state) >= 20000000) {
- s5h1420_writereg(state, Loop04, 0x8a);
- s5h1420_writereg(state, Loop05, 0x6a);
- } else {
- s5h1420_writereg(state, Loop04, 0x58);
- s5h1420_writereg(state, Loop05, 0x27);
- }
-
- /* post-lock processing has been done! */
- state->postlocked = 1;
- }
-
- dprintk("leave %s\n", __func__);
-
- return 0;
-}
-
-static int s5h1420_read_ber(struct dvb_frontend* fe, u32* ber)
-{
- struct s5h1420_state* state = fe->demodulator_priv;
-
- s5h1420_writereg(state, 0x46, 0x1d);
- mdelay(25);
-
- *ber = (s5h1420_readreg(state, 0x48) << 8) | s5h1420_readreg(state, 0x47);
-
- return 0;
-}
-
-static int s5h1420_read_signal_strength(struct dvb_frontend* fe, u16* strength)
-{
- struct s5h1420_state* state = fe->demodulator_priv;
-
- u8 val = s5h1420_readreg(state, 0x15);
-
- *strength = (u16) ((val << 8) | val);
-
- return 0;
-}
-
-static int s5h1420_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
-{
- struct s5h1420_state* state = fe->demodulator_priv;
-
- s5h1420_writereg(state, 0x46, 0x1f);
- mdelay(25);
-
- *ucblocks = (s5h1420_readreg(state, 0x48) << 8) | s5h1420_readreg(state, 0x47);
-
- return 0;
-}
-
-static void s5h1420_reset(struct s5h1420_state* state)
-{
- dprintk("%s\n", __func__);
- s5h1420_writereg (state, 0x01, 0x08);
- s5h1420_writereg (state, 0x01, 0x00);
- udelay(10);
-}
-
-static void s5h1420_setsymbolrate(struct s5h1420_state* state,
- struct dtv_frontend_properties *p)
-{
- u8 v;
- u64 val;
-
- dprintk("enter %s\n", __func__);
-
- val = ((u64) p->symbol_rate / 1000ULL) * (1ULL<<24);
- if (p->symbol_rate < 29000000)
- val *= 2;
- do_div(val, (state->fclk / 1000));
-
- dprintk("symbol rate register: %06llx\n", (unsigned long long)val);
-
- v = s5h1420_readreg(state, Loop01);
- s5h1420_writereg(state, Loop01, v & 0x7f);
- s5h1420_writereg(state, Tnco01, val >> 16);
- s5h1420_writereg(state, Tnco02, val >> 8);
- s5h1420_writereg(state, Tnco03, val & 0xff);
- s5h1420_writereg(state, Loop01, v | 0x80);
- dprintk("leave %s\n", __func__);
-}
-
-static u32 s5h1420_getsymbolrate(struct s5h1420_state* state)
-{
- return state->symbol_rate;
-}
-
-static void s5h1420_setfreqoffset(struct s5h1420_state* state, int freqoffset)
-{
- int val;
- u8 v;
-
- dprintk("enter %s\n", __func__);
-
- /* remember freqoffset is in kHz, but the chip wants the offset in Hz, so
- * divide fclk by 1000000 to get the correct value. */
- val = -(int) ((freqoffset * (1<<24)) / (state->fclk / 1000000));
-
- dprintk("phase rotator/freqoffset: %d %06x\n", freqoffset, val);
-
- v = s5h1420_readreg(state, Loop01);
- s5h1420_writereg(state, Loop01, v & 0xbf);
- s5h1420_writereg(state, Pnco01, val >> 16);
- s5h1420_writereg(state, Pnco02, val >> 8);
- s5h1420_writereg(state, Pnco03, val & 0xff);
- s5h1420_writereg(state, Loop01, v | 0x40);
- dprintk("leave %s\n", __func__);
-}
-
-static int s5h1420_getfreqoffset(struct s5h1420_state* state)
-{
- int val;
-
- s5h1420_writereg(state, 0x06, s5h1420_readreg(state, 0x06) | 0x08);
- val = s5h1420_readreg(state, 0x0e) << 16;
- val |= s5h1420_readreg(state, 0x0f) << 8;
- val |= s5h1420_readreg(state, 0x10);
- s5h1420_writereg(state, 0x06, s5h1420_readreg(state, 0x06) & 0xf7);
-
- if (val & 0x800000)
- val |= 0xff000000;
-
- /* remember freqoffset is in kHz, but the chip wants the offset in Hz, so
- * divide fclk by 1000000 to get the correct value. */
- val = (((-val) * (state->fclk/1000000)) / (1<<24));
-
- return val;
-}
-
-static void s5h1420_setfec_inversion(struct s5h1420_state* state,
- struct dtv_frontend_properties *p)
-{
- u8 inversion = 0;
- u8 vit08, vit09;
-
- dprintk("enter %s\n", __func__);
-
- if (p->inversion == INVERSION_OFF)
- inversion = state->config->invert ? 0x08 : 0;
- else if (p->inversion == INVERSION_ON)
- inversion = state->config->invert ? 0 : 0x08;
-
- if ((p->fec_inner == FEC_AUTO) || (p->inversion == INVERSION_AUTO)) {
- vit08 = 0x3f;
- vit09 = 0;
- } else {
- switch (p->fec_inner) {
- case FEC_1_2:
- vit08 = 0x01; vit09 = 0x10;
- break;
-
- case FEC_2_3:
- vit08 = 0x02; vit09 = 0x11;
- break;
-
- case FEC_3_4:
- vit08 = 0x04; vit09 = 0x12;
- break;
-
- case FEC_5_6:
- vit08 = 0x08; vit09 = 0x13;
- break;
-
- case FEC_6_7:
- vit08 = 0x10; vit09 = 0x14;
- break;
-
- case FEC_7_8:
- vit08 = 0x20; vit09 = 0x15;
- break;
-
- default:
- return;
- }
- }
- vit09 |= inversion;
- dprintk("fec: %02x %02x\n", vit08, vit09);
- s5h1420_writereg(state, Vit08, vit08);
- s5h1420_writereg(state, Vit09, vit09);
- dprintk("leave %s\n", __func__);
-}
-
-static fe_code_rate_t s5h1420_getfec(struct s5h1420_state* state)
-{
- switch(s5h1420_readreg(state, 0x32) & 0x07) {
- case 0:
- return FEC_1_2;
-
- case 1:
- return FEC_2_3;
-
- case 2:
- return FEC_3_4;
-
- case 3:
- return FEC_5_6;
-
- case 4:
- return FEC_6_7;
-
- case 5:
- return FEC_7_8;
- }
-
- return FEC_NONE;
-}
-
-static fe_spectral_inversion_t s5h1420_getinversion(struct s5h1420_state* state)
-{
- if (s5h1420_readreg(state, 0x32) & 0x08)
- return INVERSION_ON;
-
- return INVERSION_OFF;
-}
-
-static int s5h1420_set_frontend(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- struct s5h1420_state* state = fe->demodulator_priv;
- int frequency_delta;
- struct dvb_frontend_tune_settings fesettings;
-
- dprintk("enter %s\n", __func__);
-
- /* check if we should do a fast-tune */
- s5h1420_get_tune_settings(fe, &fesettings);
- frequency_delta = p->frequency - state->tunedfreq;
- if ((frequency_delta > -fesettings.max_drift) &&
- (frequency_delta < fesettings.max_drift) &&
- (frequency_delta != 0) &&
- (state->fec_inner == p->fec_inner) &&
- (state->symbol_rate == p->symbol_rate)) {
-
- if (fe->ops.tuner_ops.set_params) {
- fe->ops.tuner_ops.set_params(fe);
- if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
- }
- if (fe->ops.tuner_ops.get_frequency) {
- u32 tmp;
- fe->ops.tuner_ops.get_frequency(fe, &tmp);
- if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
- s5h1420_setfreqoffset(state, p->frequency - tmp);
- } else {
- s5h1420_setfreqoffset(state, 0);
- }
- dprintk("simple tune\n");
- return 0;
- }
- dprintk("tuning demod\n");
-
- /* first of all, software reset */
- s5h1420_reset(state);
-
- /* set s5h1420 fclk PLL according to desired symbol rate */
- if (p->symbol_rate > 33000000)
- state->fclk = 80000000;
- else if (p->symbol_rate > 28500000)
- state->fclk = 59000000;
- else if (p->symbol_rate > 25000000)
- state->fclk = 86000000;
- else if (p->symbol_rate > 1900000)
- state->fclk = 88000000;
- else
- state->fclk = 44000000;
-
- dprintk("pll01: %d, ToneFreq: %d\n", state->fclk/1000000 - 8, (state->fclk + (TONE_FREQ * 32) - 1) / (TONE_FREQ * 32));
- s5h1420_writereg(state, PLL01, state->fclk/1000000 - 8);
- s5h1420_writereg(state, PLL02, 0x40);
- s5h1420_writereg(state, DiS01, (state->fclk + (TONE_FREQ * 32) - 1) / (TONE_FREQ * 32));
-
- /* TODO DC offset removal, config parameter ? */
- if (p->symbol_rate > 29000000)
- s5h1420_writereg(state, QPSK01, 0xae | 0x10);
- else
- s5h1420_writereg(state, QPSK01, 0xac | 0x10);
-
- /* set misc registers */
- s5h1420_writereg(state, CON_1, 0x00);
- s5h1420_writereg(state, QPSK02, 0x00);
- s5h1420_writereg(state, Pre01, 0xb0);
-
- s5h1420_writereg(state, Loop01, 0xF0);
- s5h1420_writereg(state, Loop02, 0x2a); /* e7 for s5h1420 */
- s5h1420_writereg(state, Loop03, 0x79); /* 78 for s5h1420 */
- if (p->symbol_rate > 20000000)
- s5h1420_writereg(state, Loop04, 0x79);
- else
- s5h1420_writereg(state, Loop04, 0x58);
- s5h1420_writereg(state, Loop05, 0x6b);
-
- if (p->symbol_rate >= 8000000)
- s5h1420_writereg(state, Post01, (0 << 6) | 0x10);
- else if (p->symbol_rate >= 4000000)
- s5h1420_writereg(state, Post01, (1 << 6) | 0x10);
- else
- s5h1420_writereg(state, Post01, (3 << 6) | 0x10);
-
- s5h1420_writereg(state, Monitor12, 0x00); /* unfreeze DC compensation */
-
- s5h1420_writereg(state, Sync01, 0x33);
- s5h1420_writereg(state, Mpeg01, state->config->cdclk_polarity);
- s5h1420_writereg(state, Mpeg02, 0x3d); /* Parallel output more, disabled -> enabled later */
- s5h1420_writereg(state, Err01, 0x03); /* 0x1d for s5h1420 */
-
- s5h1420_writereg(state, Vit06, 0x6e); /* 0x8e for s5h1420 */
- s5h1420_writereg(state, DiS03, 0x00);
- s5h1420_writereg(state, Rf01, 0x61); /* Tuner i2c address - for the gate controller */
-
- /* set tuner PLL */
- if (fe->ops.tuner_ops.set_params) {
- fe->ops.tuner_ops.set_params(fe);
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
- s5h1420_setfreqoffset(state, 0);
- }
-
- /* set the reset of the parameters */
- s5h1420_setsymbolrate(state, p);
- s5h1420_setfec_inversion(state, p);
-
- /* start QPSK */
- s5h1420_writereg(state, QPSK01, s5h1420_readreg(state, QPSK01) | 1);
-
- state->fec_inner = p->fec_inner;
- state->symbol_rate = p->symbol_rate;
- state->postlocked = 0;
- state->tunedfreq = p->frequency;
-
- dprintk("leave %s\n", __func__);
- return 0;
-}
-
-static int s5h1420_get_frontend(struct dvb_frontend* fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- struct s5h1420_state* state = fe->demodulator_priv;
-
- p->frequency = state->tunedfreq + s5h1420_getfreqoffset(state);
- p->inversion = s5h1420_getinversion(state);
- p->symbol_rate = s5h1420_getsymbolrate(state);
- p->fec_inner = s5h1420_getfec(state);
-
- return 0;
-}
-
-static int s5h1420_get_tune_settings(struct dvb_frontend* fe,
- struct dvb_frontend_tune_settings* fesettings)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- if (p->symbol_rate > 20000000) {
- fesettings->min_delay_ms = 50;
- fesettings->step_size = 2000;
- fesettings->max_drift = 8000;
- } else if (p->symbol_rate > 12000000) {
- fesettings->min_delay_ms = 100;
- fesettings->step_size = 1500;
- fesettings->max_drift = 9000;
- } else if (p->symbol_rate > 8000000) {
- fesettings->min_delay_ms = 100;
- fesettings->step_size = 1000;
- fesettings->max_drift = 8000;
- } else if (p->symbol_rate > 4000000) {
- fesettings->min_delay_ms = 100;
- fesettings->step_size = 500;
- fesettings->max_drift = 7000;
- } else if (p->symbol_rate > 2000000) {
- fesettings->min_delay_ms = 200;
- fesettings->step_size = (p->symbol_rate / 8000);
- fesettings->max_drift = 14 * fesettings->step_size;
- } else {
- fesettings->min_delay_ms = 200;
- fesettings->step_size = (p->symbol_rate / 8000);
- fesettings->max_drift = 18 * fesettings->step_size;
- }
-
- return 0;
-}
-
-static int s5h1420_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
-{
- struct s5h1420_state* state = fe->demodulator_priv;
-
- if (enable)
- return s5h1420_writereg(state, 0x02, state->CON_1_val | 1);
- else
- return s5h1420_writereg(state, 0x02, state->CON_1_val & 0xfe);
-}
-
-static int s5h1420_init (struct dvb_frontend* fe)
-{
- struct s5h1420_state* state = fe->demodulator_priv;
-
- /* disable power down and do reset */
- state->CON_1_val = state->config->serial_mpeg << 4;
- s5h1420_writereg(state, 0x02, state->CON_1_val);
- msleep(10);
- s5h1420_reset(state);
-
- return 0;
-}
-
-static int s5h1420_sleep(struct dvb_frontend* fe)
-{
- struct s5h1420_state* state = fe->demodulator_priv;
- state->CON_1_val = 0x12;
- return s5h1420_writereg(state, 0x02, state->CON_1_val);
-}
-
-static void s5h1420_release(struct dvb_frontend* fe)
-{
- struct s5h1420_state* state = fe->demodulator_priv;
- i2c_del_adapter(&state->tuner_i2c_adapter);
- kfree(state);
-}
-
-static u32 s5h1420_tuner_i2c_func(struct i2c_adapter *adapter)
-{
- return I2C_FUNC_I2C;
-}
-
-static int s5h1420_tuner_i2c_tuner_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num)
-{
- struct s5h1420_state *state = i2c_get_adapdata(i2c_adap);
- struct i2c_msg m[1 + num];
- u8 tx_open[2] = { CON_1, state->CON_1_val | 1 }; /* repeater stops once there was a stop condition */
-
- memset(m, 0, sizeof(struct i2c_msg) * (1 + num));
-
- m[0].addr = state->config->demod_address;
- m[0].buf = tx_open;
- m[0].len = 2;
-
- memcpy(&m[1], msg, sizeof(struct i2c_msg) * num);
-
- return i2c_transfer(state->i2c, m, 1+num) == 1 + num ? num : -EIO;
-}
-
-static struct i2c_algorithm s5h1420_tuner_i2c_algo = {
- .master_xfer = s5h1420_tuner_i2c_tuner_xfer,
- .functionality = s5h1420_tuner_i2c_func,
-};
-
-struct i2c_adapter *s5h1420_get_tuner_i2c_adapter(struct dvb_frontend *fe)
-{
- struct s5h1420_state *state = fe->demodulator_priv;
- return &state->tuner_i2c_adapter;
-}
-EXPORT_SYMBOL(s5h1420_get_tuner_i2c_adapter);
-
-static struct dvb_frontend_ops s5h1420_ops;
-
-struct dvb_frontend *s5h1420_attach(const struct s5h1420_config *config,
- struct i2c_adapter *i2c)
-{
- /* allocate memory for the internal state */
- struct s5h1420_state *state = kzalloc(sizeof(struct s5h1420_state), GFP_KERNEL);
- u8 i;
-
- if (state == NULL)
- goto error;
-
- /* setup the state */
- state->config = config;
- state->i2c = i2c;
- state->postlocked = 0;
- state->fclk = 88000000;
- state->tunedfreq = 0;
- state->fec_inner = FEC_NONE;
- state->symbol_rate = 0;
-
- /* check if the demod is there + identify it */
- i = s5h1420_readreg(state, ID01);
- if (i != 0x03)
- goto error;
-
- memset(state->shadow, 0xff, sizeof(state->shadow));
-
- for (i = 0; i < 0x50; i++)
- state->shadow[i] = s5h1420_readreg(state, i);
-
- /* create dvb_frontend */
- memcpy(&state->frontend.ops, &s5h1420_ops, sizeof(struct dvb_frontend_ops));
- state->frontend.demodulator_priv = state;
-
- /* create tuner i2c adapter */
- strlcpy(state->tuner_i2c_adapter.name, "S5H1420-PN1010 tuner I2C bus",
- sizeof(state->tuner_i2c_adapter.name));
- state->tuner_i2c_adapter.algo = &s5h1420_tuner_i2c_algo;
- state->tuner_i2c_adapter.algo_data = NULL;
- i2c_set_adapdata(&state->tuner_i2c_adapter, state);
- if (i2c_add_adapter(&state->tuner_i2c_adapter) < 0) {
- printk(KERN_ERR "S5H1420/PN1010: tuner i2c bus could not be initialized\n");
- goto error;
- }
-
- return &state->frontend;
-
-error:
- kfree(state);
- return NULL;
-}
-EXPORT_SYMBOL(s5h1420_attach);
-
-static struct dvb_frontend_ops s5h1420_ops = {
- .delsys = { SYS_DVBS },
- .info = {
- .name = "Samsung S5H1420/PnpNetwork PN1010 DVB-S",
- .frequency_min = 950000,
- .frequency_max = 2150000,
- .frequency_stepsize = 125, /* kHz for QPSK frontends */
- .frequency_tolerance = 29500,
- .symbol_rate_min = 1000000,
- .symbol_rate_max = 45000000,
- /* .symbol_rate_tolerance = ???,*/
- .caps = FE_CAN_INVERSION_AUTO |
- FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
- FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
- FE_CAN_QPSK
- },
-
- .release = s5h1420_release,
-
- .init = s5h1420_init,
- .sleep = s5h1420_sleep,
- .i2c_gate_ctrl = s5h1420_i2c_gate_ctrl,
-
- .set_frontend = s5h1420_set_frontend,
- .get_frontend = s5h1420_get_frontend,
- .get_tune_settings = s5h1420_get_tune_settings,
-
- .read_status = s5h1420_read_status,
- .read_ber = s5h1420_read_ber,
- .read_signal_strength = s5h1420_read_signal_strength,
- .read_ucblocks = s5h1420_read_ucblocks,
-
- .diseqc_send_master_cmd = s5h1420_send_master_cmd,
- .diseqc_recv_slave_reply = s5h1420_recv_slave_reply,
- .diseqc_send_burst = s5h1420_send_burst,
- .set_tone = s5h1420_set_tone,
- .set_voltage = s5h1420_set_voltage,
-};
-
-MODULE_DESCRIPTION("Samsung S5H1420/PnpNetwork PN1010 DVB-S Demodulator driver");
-MODULE_AUTHOR("Andrew de Quincey, Patrick Boettcher");
-MODULE_LICENSE("GPL");