summaryrefslogtreecommitdiff
path: root/drivers/media/dvb/frontends/tda10048.c
diff options
context:
space:
mode:
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/tda10048.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/tda10048.c')
-rw-r--r--drivers/media/dvb/frontends/tda10048.c1191
1 files changed, 0 insertions, 1191 deletions
diff --git a/drivers/media/dvb/frontends/tda10048.c b/drivers/media/dvb/frontends/tda10048.c
deleted file mode 100644
index 71fb63299de7..000000000000
--- a/drivers/media/dvb/frontends/tda10048.c
+++ /dev/null
@@ -1,1191 +0,0 @@
-/*
- NXP TDA10048HN DVB OFDM demodulator driver
-
- Copyright (C) 2009 Steven Toth <stoth@kernellabs.com>
-
- 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/init.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/math64.h>
-#include <asm/div64.h>
-#include "dvb_frontend.h"
-#include "dvb_math.h"
-#include "tda10048.h"
-
-#define TDA10048_DEFAULT_FIRMWARE "dvb-fe-tda10048-1.0.fw"
-#define TDA10048_DEFAULT_FIRMWARE_SIZE 24878
-
-/* Register name definitions */
-#define TDA10048_IDENTITY 0x00
-#define TDA10048_VERSION 0x01
-#define TDA10048_DSP_CODE_CPT 0x0C
-#define TDA10048_DSP_CODE_IN 0x0E
-#define TDA10048_IN_CONF1 0x10
-#define TDA10048_IN_CONF2 0x11
-#define TDA10048_IN_CONF3 0x12
-#define TDA10048_OUT_CONF1 0x14
-#define TDA10048_OUT_CONF2 0x15
-#define TDA10048_OUT_CONF3 0x16
-#define TDA10048_AUTO 0x18
-#define TDA10048_SYNC_STATUS 0x1A
-#define TDA10048_CONF_C4_1 0x1E
-#define TDA10048_CONF_C4_2 0x1F
-#define TDA10048_CODE_IN_RAM 0x20
-#define TDA10048_CHANNEL_INFO1_R 0x22
-#define TDA10048_CHANNEL_INFO2_R 0x23
-#define TDA10048_CHANNEL_INFO1 0x24
-#define TDA10048_CHANNEL_INFO2 0x25
-#define TDA10048_TIME_ERROR_R 0x26
-#define TDA10048_TIME_ERROR 0x27
-#define TDA10048_FREQ_ERROR_LSB_R 0x28
-#define TDA10048_FREQ_ERROR_MSB_R 0x29
-#define TDA10048_FREQ_ERROR_LSB 0x2A
-#define TDA10048_FREQ_ERROR_MSB 0x2B
-#define TDA10048_IT_SEL 0x30
-#define TDA10048_IT_STAT 0x32
-#define TDA10048_DSP_AD_LSB 0x3C
-#define TDA10048_DSP_AD_MSB 0x3D
-#define TDA10048_DSP_REG_LSB 0x3E
-#define TDA10048_DSP_REG_MSB 0x3F
-#define TDA10048_CONF_TRISTATE1 0x44
-#define TDA10048_CONF_TRISTATE2 0x45
-#define TDA10048_CONF_POLARITY 0x46
-#define TDA10048_GPIO_SP_DS0 0x48
-#define TDA10048_GPIO_SP_DS1 0x49
-#define TDA10048_GPIO_SP_DS2 0x4A
-#define TDA10048_GPIO_SP_DS3 0x4B
-#define TDA10048_GPIO_OUT_SEL 0x4C
-#define TDA10048_GPIO_SELECT 0x4D
-#define TDA10048_IC_MODE 0x4E
-#define TDA10048_CONF_XO 0x50
-#define TDA10048_CONF_PLL1 0x51
-#define TDA10048_CONF_PLL2 0x52
-#define TDA10048_CONF_PLL3 0x53
-#define TDA10048_CONF_ADC 0x54
-#define TDA10048_CONF_ADC_2 0x55
-#define TDA10048_CONF_C1_1 0x60
-#define TDA10048_CONF_C1_3 0x62
-#define TDA10048_AGC_CONF 0x70
-#define TDA10048_AGC_THRESHOLD_LSB 0x72
-#define TDA10048_AGC_THRESHOLD_MSB 0x73
-#define TDA10048_AGC_RENORM 0x74
-#define TDA10048_AGC_GAINS 0x76
-#define TDA10048_AGC_TUN_MIN 0x78
-#define TDA10048_AGC_TUN_MAX 0x79
-#define TDA10048_AGC_IF_MIN 0x7A
-#define TDA10048_AGC_IF_MAX 0x7B
-#define TDA10048_AGC_TUN_LEVEL 0x7E
-#define TDA10048_AGC_IF_LEVEL 0x7F
-#define TDA10048_DIG_AGC_LEVEL 0x81
-#define TDA10048_FREQ_PHY2_LSB 0x86
-#define TDA10048_FREQ_PHY2_MSB 0x87
-#define TDA10048_TIME_INVWREF_LSB 0x88
-#define TDA10048_TIME_INVWREF_MSB 0x89
-#define TDA10048_TIME_WREF_LSB 0x8A
-#define TDA10048_TIME_WREF_MID1 0x8B
-#define TDA10048_TIME_WREF_MID2 0x8C
-#define TDA10048_TIME_WREF_MSB 0x8D
-#define TDA10048_NP_OUT 0xA2
-#define TDA10048_CELL_ID_LSB 0xA4
-#define TDA10048_CELL_ID_MSB 0xA5
-#define TDA10048_EXTTPS_ODD 0xAA
-#define TDA10048_EXTTPS_EVEN 0xAB
-#define TDA10048_TPS_LENGTH 0xAC
-#define TDA10048_FREE_REG_1 0xB2
-#define TDA10048_FREE_REG_2 0xB3
-#define TDA10048_CONF_C3_1 0xC0
-#define TDA10048_CVBER_CTRL 0xC2
-#define TDA10048_CBER_NMAX_LSB 0xC4
-#define TDA10048_CBER_NMAX_MSB 0xC5
-#define TDA10048_CBER_LSB 0xC6
-#define TDA10048_CBER_MSB 0xC7
-#define TDA10048_VBER_LSB 0xC8
-#define TDA10048_VBER_MID 0xC9
-#define TDA10048_VBER_MSB 0xCA
-#define TDA10048_CVBER_LUT 0xCC
-#define TDA10048_UNCOR_CTRL 0xCD
-#define TDA10048_UNCOR_CPT_LSB 0xCE
-#define TDA10048_UNCOR_CPT_MSB 0xCF
-#define TDA10048_SOFT_IT_C3 0xD6
-#define TDA10048_CONF_TS2 0xE0
-#define TDA10048_CONF_TS1 0xE1
-
-static unsigned int debug;
-
-#define dprintk(level, fmt, arg...)\
- do { if (debug >= level)\
- printk(KERN_DEBUG "tda10048: " fmt, ## arg);\
- } while (0)
-
-struct tda10048_state {
-
- struct i2c_adapter *i2c;
-
- /* We'll cache and update the attach config settings */
- struct tda10048_config config;
- struct dvb_frontend frontend;
-
- int fwloaded;
-
- u32 freq_if_hz;
- u32 xtal_hz;
- u32 pll_mfactor;
- u32 pll_nfactor;
- u32 pll_pfactor;
- u32 sample_freq;
-
- u32 bandwidth;
-};
-
-static struct init_tab {
- u8 reg;
- u16 data;
-} init_tab[] = {
- { TDA10048_CONF_PLL1, 0x08 },
- { TDA10048_CONF_ADC_2, 0x00 },
- { TDA10048_CONF_C4_1, 0x00 },
- { TDA10048_CONF_PLL1, 0x0f },
- { TDA10048_CONF_PLL2, 0x0a },
- { TDA10048_CONF_PLL3, 0x43 },
- { TDA10048_FREQ_PHY2_LSB, 0x02 },
- { TDA10048_FREQ_PHY2_MSB, 0x0a },
- { TDA10048_TIME_WREF_LSB, 0xbd },
- { TDA10048_TIME_WREF_MID1, 0xe4 },
- { TDA10048_TIME_WREF_MID2, 0xa8 },
- { TDA10048_TIME_WREF_MSB, 0x02 },
- { TDA10048_TIME_INVWREF_LSB, 0x04 },
- { TDA10048_TIME_INVWREF_MSB, 0x06 },
- { TDA10048_CONF_C4_1, 0x00 },
- { TDA10048_CONF_C1_1, 0xa8 },
- { TDA10048_AGC_CONF, 0x16 },
- { TDA10048_CONF_C1_3, 0x0b },
- { TDA10048_AGC_TUN_MIN, 0x00 },
- { TDA10048_AGC_TUN_MAX, 0xff },
- { TDA10048_AGC_IF_MIN, 0x00 },
- { TDA10048_AGC_IF_MAX, 0xff },
- { TDA10048_AGC_THRESHOLD_MSB, 0x00 },
- { TDA10048_AGC_THRESHOLD_LSB, 0x70 },
- { TDA10048_CVBER_CTRL, 0x38 },
- { TDA10048_AGC_GAINS, 0x12 },
- { TDA10048_CONF_XO, 0x00 },
- { TDA10048_CONF_TS1, 0x07 },
- { TDA10048_IC_MODE, 0x00 },
- { TDA10048_CONF_TS2, 0xc0 },
- { TDA10048_CONF_TRISTATE1, 0x21 },
- { TDA10048_CONF_TRISTATE2, 0x00 },
- { TDA10048_CONF_POLARITY, 0x00 },
- { TDA10048_CONF_C4_2, 0x04 },
- { TDA10048_CONF_ADC, 0x60 },
- { TDA10048_CONF_ADC_2, 0x10 },
- { TDA10048_CONF_ADC, 0x60 },
- { TDA10048_CONF_ADC_2, 0x00 },
- { TDA10048_CONF_C1_1, 0xa8 },
- { TDA10048_UNCOR_CTRL, 0x00 },
- { TDA10048_CONF_C4_2, 0x04 },
-};
-
-static struct pll_tab {
- u32 clk_freq_khz;
- u32 if_freq_khz;
-} pll_tab[] = {
- { TDA10048_CLK_4000, TDA10048_IF_36130 },
- { TDA10048_CLK_16000, TDA10048_IF_3300 },
- { TDA10048_CLK_16000, TDA10048_IF_3500 },
- { TDA10048_CLK_16000, TDA10048_IF_3800 },
- { TDA10048_CLK_16000, TDA10048_IF_4000 },
- { TDA10048_CLK_16000, TDA10048_IF_4300 },
- { TDA10048_CLK_16000, TDA10048_IF_4500 },
- { TDA10048_CLK_16000, TDA10048_IF_5000 },
- { TDA10048_CLK_16000, TDA10048_IF_36130 },
-};
-
-static int tda10048_writereg(struct tda10048_state *state, u8 reg, u8 data)
-{
- struct tda10048_config *config = &state->config;
- int ret;
- u8 buf[] = { reg, data };
- struct i2c_msg msg = {
- .addr = config->demod_address,
- .flags = 0, .buf = buf, .len = 2 };
-
- dprintk(2, "%s(reg = 0x%02x, data = 0x%02x)\n", __func__, reg, data);
-
- ret = i2c_transfer(state->i2c, &msg, 1);
-
- if (ret != 1)
- printk("%s: writereg error (ret == %i)\n", __func__, ret);
-
- return (ret != 1) ? -1 : 0;
-}
-
-static u8 tda10048_readreg(struct tda10048_state *state, u8 reg)
-{
- struct tda10048_config *config = &state->config;
- int ret;
- u8 b0[] = { reg };
- u8 b1[] = { 0 };
- struct i2c_msg msg[] = {
- { .addr = config->demod_address,
- .flags = 0, .buf = b0, .len = 1 },
- { .addr = config->demod_address,
- .flags = I2C_M_RD, .buf = b1, .len = 1 } };
-
- dprintk(2, "%s(reg = 0x%02x)\n", __func__, reg);
-
- ret = i2c_transfer(state->i2c, msg, 2);
-
- if (ret != 2)
- printk(KERN_ERR "%s: readreg error (ret == %i)\n",
- __func__, ret);
-
- return b1[0];
-}
-
-static int tda10048_writeregbulk(struct tda10048_state *state, u8 reg,
- const u8 *data, u16 len)
-{
- struct tda10048_config *config = &state->config;
- int ret = -EREMOTEIO;
- struct i2c_msg msg;
- u8 *buf;
-
- dprintk(2, "%s(%d, ?, len = %d)\n", __func__, reg, len);
-
- buf = kmalloc(len + 1, GFP_KERNEL);
- if (buf == NULL) {
- ret = -ENOMEM;
- goto error;
- }
-
- *buf = reg;
- memcpy(buf + 1, data, len);
-
- msg.addr = config->demod_address;
- msg.flags = 0;
- msg.buf = buf;
- msg.len = len + 1;
-
- dprintk(2, "%s(): write len = %d\n",
- __func__, msg.len);
-
- ret = i2c_transfer(state->i2c, &msg, 1);
- if (ret != 1) {
- printk(KERN_ERR "%s(): writereg error err %i\n",
- __func__, ret);
- ret = -EREMOTEIO;
- }
-
-error:
- kfree(buf);
-
- return ret;
-}
-
-static int tda10048_set_phy2(struct dvb_frontend *fe, u32 sample_freq_hz,
- u32 if_hz)
-{
- struct tda10048_state *state = fe->demodulator_priv;
- u64 t;
-
- dprintk(1, "%s()\n", __func__);
-
- if (sample_freq_hz == 0)
- return -EINVAL;
-
- if (if_hz < (sample_freq_hz / 2)) {
- /* PHY2 = (if2/fs) * 2^15 */
- t = if_hz;
- t *= 10;
- t *= 32768;
- do_div(t, sample_freq_hz);
- t += 5;
- do_div(t, 10);
- } else {
- /* PHY2 = ((IF1-fs)/fs) * 2^15 */
- t = sample_freq_hz - if_hz;
- t *= 10;
- t *= 32768;
- do_div(t, sample_freq_hz);
- t += 5;
- do_div(t, 10);
- t = ~t + 1;
- }
-
- tda10048_writereg(state, TDA10048_FREQ_PHY2_LSB, (u8)t);
- tda10048_writereg(state, TDA10048_FREQ_PHY2_MSB, (u8)(t >> 8));
-
- return 0;
-}
-
-static int tda10048_set_wref(struct dvb_frontend *fe, u32 sample_freq_hz,
- u32 bw)
-{
- struct tda10048_state *state = fe->demodulator_priv;
- u64 t, z;
-
- dprintk(1, "%s()\n", __func__);
-
- if (sample_freq_hz == 0)
- return -EINVAL;
-
- /* WREF = (B / (7 * fs)) * 2^31 */
- t = bw * 10;
- /* avoid warning: this decimal constant is unsigned only in ISO C90 */
- /* t *= 2147483648 on 32bit platforms */
- t *= (2048 * 1024);
- t *= 1024;
- z = 7 * sample_freq_hz;
- do_div(t, z);
- t += 5;
- do_div(t, 10);
-
- tda10048_writereg(state, TDA10048_TIME_WREF_LSB, (u8)t);
- tda10048_writereg(state, TDA10048_TIME_WREF_MID1, (u8)(t >> 8));
- tda10048_writereg(state, TDA10048_TIME_WREF_MID2, (u8)(t >> 16));
- tda10048_writereg(state, TDA10048_TIME_WREF_MSB, (u8)(t >> 24));
-
- return 0;
-}
-
-static int tda10048_set_invwref(struct dvb_frontend *fe, u32 sample_freq_hz,
- u32 bw)
-{
- struct tda10048_state *state = fe->demodulator_priv;
- u64 t;
-
- dprintk(1, "%s()\n", __func__);
-
- if (sample_freq_hz == 0)
- return -EINVAL;
-
- /* INVWREF = ((7 * fs) / B) * 2^5 */
- t = sample_freq_hz;
- t *= 7;
- t *= 32;
- t *= 10;
- do_div(t, bw);
- t += 5;
- do_div(t, 10);
-
- tda10048_writereg(state, TDA10048_TIME_INVWREF_LSB, (u8)t);
- tda10048_writereg(state, TDA10048_TIME_INVWREF_MSB, (u8)(t >> 8));
-
- return 0;
-}
-
-static int tda10048_set_bandwidth(struct dvb_frontend *fe,
- u32 bw)
-{
- struct tda10048_state *state = fe->demodulator_priv;
- dprintk(1, "%s(bw=%d)\n", __func__, bw);
-
- /* Bandwidth setting may need to be adjusted */
- switch (bw) {
- case 6000000:
- case 7000000:
- case 8000000:
- tda10048_set_wref(fe, state->sample_freq, bw);
- tda10048_set_invwref(fe, state->sample_freq, bw);
- break;
- default:
- printk(KERN_ERR "%s() invalid bandwidth\n", __func__);
- return -EINVAL;
- }
-
- state->bandwidth = bw;
-
- return 0;
-}
-
-static int tda10048_set_if(struct dvb_frontend *fe, u32 bw)
-{
- struct tda10048_state *state = fe->demodulator_priv;
- struct tda10048_config *config = &state->config;
- int i;
- u32 if_freq_khz;
-
- dprintk(1, "%s(bw = %d)\n", __func__, bw);
-
- /* based on target bandwidth and clk we calculate pll factors */
- switch (bw) {
- case 6000000:
- if_freq_khz = config->dtv6_if_freq_khz;
- break;
- case 7000000:
- if_freq_khz = config->dtv7_if_freq_khz;
- break;
- case 8000000:
- if_freq_khz = config->dtv8_if_freq_khz;
- break;
- default:
- printk(KERN_ERR "%s() no default\n", __func__);
- return -EINVAL;
- }
-
- for (i = 0; i < ARRAY_SIZE(pll_tab); i++) {
- if ((pll_tab[i].clk_freq_khz == config->clk_freq_khz) &&
- (pll_tab[i].if_freq_khz == if_freq_khz)) {
-
- state->freq_if_hz = pll_tab[i].if_freq_khz * 1000;
- state->xtal_hz = pll_tab[i].clk_freq_khz * 1000;
- break;
- }
- }
- if (i == ARRAY_SIZE(pll_tab)) {
- printk(KERN_ERR "%s() Incorrect attach settings\n",
- __func__);
- return -EINVAL;
- }
-
- dprintk(1, "- freq_if_hz = %d\n", state->freq_if_hz);
- dprintk(1, "- xtal_hz = %d\n", state->xtal_hz);
- dprintk(1, "- pll_mfactor = %d\n", state->pll_mfactor);
- dprintk(1, "- pll_nfactor = %d\n", state->pll_nfactor);
- dprintk(1, "- pll_pfactor = %d\n", state->pll_pfactor);
-
- /* Calculate the sample frequency */
- state->sample_freq = state->xtal_hz * (state->pll_mfactor + 45);
- state->sample_freq /= (state->pll_nfactor + 1);
- state->sample_freq /= (state->pll_pfactor + 4);
- dprintk(1, "- sample_freq = %d\n", state->sample_freq);
-
- /* Update the I/F */
- tda10048_set_phy2(fe, state->sample_freq, state->freq_if_hz);
-
- return 0;
-}
-
-static int tda10048_firmware_upload(struct dvb_frontend *fe)
-{
- struct tda10048_state *state = fe->demodulator_priv;
- struct tda10048_config *config = &state->config;
- const struct firmware *fw;
- int ret;
- int pos = 0;
- int cnt;
- u8 wlen = config->fwbulkwritelen;
-
- if ((wlen != TDA10048_BULKWRITE_200) && (wlen != TDA10048_BULKWRITE_50))
- wlen = TDA10048_BULKWRITE_200;
-
- /* request the firmware, this will block and timeout */
- printk(KERN_INFO "%s: waiting for firmware upload (%s)...\n",
- __func__,
- TDA10048_DEFAULT_FIRMWARE);
-
- ret = request_firmware(&fw, TDA10048_DEFAULT_FIRMWARE,
- state->i2c->dev.parent);
- if (ret) {
- printk(KERN_ERR "%s: Upload failed. (file not found?)\n",
- __func__);
- return -EIO;
- } else {
- printk(KERN_INFO "%s: firmware read %Zu bytes.\n",
- __func__,
- fw->size);
- ret = 0;
- }
-
- if (fw->size != TDA10048_DEFAULT_FIRMWARE_SIZE) {
- printk(KERN_ERR "%s: firmware incorrect size\n", __func__);
- ret = -EIO;
- } else {
- printk(KERN_INFO "%s: firmware uploading\n", __func__);
-
- /* Soft reset */
- tda10048_writereg(state, TDA10048_CONF_TRISTATE1,
- tda10048_readreg(state, TDA10048_CONF_TRISTATE1)
- & 0xfe);
- tda10048_writereg(state, TDA10048_CONF_TRISTATE1,
- tda10048_readreg(state, TDA10048_CONF_TRISTATE1)
- | 0x01);
-
- /* Put the demod into host download mode */
- tda10048_writereg(state, TDA10048_CONF_C4_1,
- tda10048_readreg(state, TDA10048_CONF_C4_1) & 0xf9);
-
- /* Boot the DSP */
- tda10048_writereg(state, TDA10048_CONF_C4_1,
- tda10048_readreg(state, TDA10048_CONF_C4_1) | 0x08);
-
- /* Prepare for download */
- tda10048_writereg(state, TDA10048_DSP_CODE_CPT, 0);
-
- /* Download the firmware payload */
- while (pos < fw->size) {
-
- if ((fw->size - pos) > wlen)
- cnt = wlen;
- else
- cnt = fw->size - pos;
-
- tda10048_writeregbulk(state, TDA10048_DSP_CODE_IN,
- &fw->data[pos], cnt);
-
- pos += cnt;
- }
-
- ret = -EIO;
- /* Wait up to 250ms for the DSP to boot */
- for (cnt = 0; cnt < 250 ; cnt += 10) {
-
- msleep(10);
-
- if (tda10048_readreg(state, TDA10048_SYNC_STATUS)
- & 0x40) {
- ret = 0;
- break;
- }
- }
- }
-
- release_firmware(fw);
-
- if (ret == 0) {
- printk(KERN_INFO "%s: firmware uploaded\n", __func__);
- state->fwloaded = 1;
- } else
- printk(KERN_ERR "%s: firmware upload failed\n", __func__);
-
- return ret;
-}
-
-static int tda10048_set_inversion(struct dvb_frontend *fe, int inversion)
-{
- struct tda10048_state *state = fe->demodulator_priv;
-
- dprintk(1, "%s(%d)\n", __func__, inversion);
-
- if (inversion == TDA10048_INVERSION_ON)
- tda10048_writereg(state, TDA10048_CONF_C1_1,
- tda10048_readreg(state, TDA10048_CONF_C1_1) | 0x20);
- else
- tda10048_writereg(state, TDA10048_CONF_C1_1,
- tda10048_readreg(state, TDA10048_CONF_C1_1) & 0xdf);
-
- return 0;
-}
-
-/* Retrieve the demod settings */
-static int tda10048_get_tps(struct tda10048_state *state,
- struct dtv_frontend_properties *p)
-{
- u8 val;
-
- /* Make sure the TPS regs are valid */
- if (!(tda10048_readreg(state, TDA10048_AUTO) & 0x01))
- return -EAGAIN;
-
- val = tda10048_readreg(state, TDA10048_OUT_CONF2);
- switch ((val & 0x60) >> 5) {
- case 0:
- p->modulation = QPSK;
- break;
- case 1:
- p->modulation = QAM_16;
- break;
- case 2:
- p->modulation = QAM_64;
- break;
- }
- switch ((val & 0x18) >> 3) {
- case 0:
- p->hierarchy = HIERARCHY_NONE;
- break;
- case 1:
- p->hierarchy = HIERARCHY_1;
- break;
- case 2:
- p->hierarchy = HIERARCHY_2;
- break;
- case 3:
- p->hierarchy = HIERARCHY_4;
- break;
- }
- switch (val & 0x07) {
- case 0:
- p->code_rate_HP = FEC_1_2;
- break;
- case 1:
- p->code_rate_HP = FEC_2_3;
- break;
- case 2:
- p->code_rate_HP = FEC_3_4;
- break;
- case 3:
- p->code_rate_HP = FEC_5_6;
- break;
- case 4:
- p->code_rate_HP = FEC_7_8;
- break;
- }
-
- val = tda10048_readreg(state, TDA10048_OUT_CONF3);
- switch (val & 0x07) {
- case 0:
- p->code_rate_LP = FEC_1_2;
- break;
- case 1:
- p->code_rate_LP = FEC_2_3;
- break;
- case 2:
- p->code_rate_LP = FEC_3_4;
- break;
- case 3:
- p->code_rate_LP = FEC_5_6;
- break;
- case 4:
- p->code_rate_LP = FEC_7_8;
- break;
- }
-
- val = tda10048_readreg(state, TDA10048_OUT_CONF1);
- switch ((val & 0x0c) >> 2) {
- case 0:
- p->guard_interval = GUARD_INTERVAL_1_32;
- break;
- case 1:
- p->guard_interval = GUARD_INTERVAL_1_16;
- break;
- case 2:
- p->guard_interval = GUARD_INTERVAL_1_8;
- break;
- case 3:
- p->guard_interval = GUARD_INTERVAL_1_4;
- break;
- }
- switch (val & 0x03) {
- case 0:
- p->transmission_mode = TRANSMISSION_MODE_2K;
- break;
- case 1:
- p->transmission_mode = TRANSMISSION_MODE_8K;
- break;
- }
-
- return 0;
-}
-
-static int tda10048_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
-{
- struct tda10048_state *state = fe->demodulator_priv;
- struct tda10048_config *config = &state->config;
- dprintk(1, "%s(%d)\n", __func__, enable);
-
- if (config->disable_gate_access)
- return 0;
-
- if (enable)
- return tda10048_writereg(state, TDA10048_CONF_C4_1,
- tda10048_readreg(state, TDA10048_CONF_C4_1) | 0x02);
- else
- return tda10048_writereg(state, TDA10048_CONF_C4_1,
- tda10048_readreg(state, TDA10048_CONF_C4_1) & 0xfd);
-}
-
-static int tda10048_output_mode(struct dvb_frontend *fe, int serial)
-{
- struct tda10048_state *state = fe->demodulator_priv;
- dprintk(1, "%s(%d)\n", __func__, serial);
-
- /* Ensure pins are out of tri-state */
- tda10048_writereg(state, TDA10048_CONF_TRISTATE1, 0x21);
- tda10048_writereg(state, TDA10048_CONF_TRISTATE2, 0x00);
-
- if (serial) {
- tda10048_writereg(state, TDA10048_IC_MODE, 0x80 | 0x20);
- tda10048_writereg(state, TDA10048_CONF_TS2, 0xc0);
- } else {
- tda10048_writereg(state, TDA10048_IC_MODE, 0x00);
- tda10048_writereg(state, TDA10048_CONF_TS2, 0x01);
- }
-
- return 0;
-}
-
-/* Talk to the demod, set the FEC, GUARD, QAM settings etc */
-/* TODO: Support manual tuning with specific params */
-static int tda10048_set_frontend(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- struct tda10048_state *state = fe->demodulator_priv;
-
- dprintk(1, "%s(frequency=%d)\n", __func__, p->frequency);
-
- /* Update the I/F pll's if the bandwidth changes */
- if (p->bandwidth_hz != state->bandwidth) {
- tda10048_set_if(fe, p->bandwidth_hz);
- tda10048_set_bandwidth(fe, p->bandwidth_hz);
- }
-
- if (fe->ops.tuner_ops.set_params) {
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1);
-
- fe->ops.tuner_ops.set_params(fe);
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
- }
-
- /* Enable demod TPS auto detection and begin acquisition */
- tda10048_writereg(state, TDA10048_AUTO, 0x57);
- /* trigger cber and vber acquisition */
- tda10048_writereg(state, TDA10048_CVBER_CTRL, 0x3B);
-
- return 0;
-}
-
-/* Establish sane defaults and load firmware. */
-static int tda10048_init(struct dvb_frontend *fe)
-{
- struct tda10048_state *state = fe->demodulator_priv;
- struct tda10048_config *config = &state->config;
- int ret = 0, i;
-
- dprintk(1, "%s()\n", __func__);
-
- /* PLL */
- init_tab[4].data = (u8)(state->pll_mfactor);
- init_tab[5].data = (u8)(state->pll_nfactor) | 0x40;
-
- /* Apply register defaults */
- for (i = 0; i < ARRAY_SIZE(init_tab); i++)
- tda10048_writereg(state, init_tab[i].reg, init_tab[i].data);
-
- if (state->fwloaded == 0)
- ret = tda10048_firmware_upload(fe);
-
- /* Set either serial or parallel */
- tda10048_output_mode(fe, config->output_mode);
-
- /* Set inversion */
- tda10048_set_inversion(fe, config->inversion);
-
- /* Establish default RF values */
- tda10048_set_if(fe, 8000000);
- tda10048_set_bandwidth(fe, 8000000);
-
- /* Ensure we leave the gate closed */
- tda10048_i2c_gate_ctrl(fe, 0);
-
- return ret;
-}
-
-static int tda10048_read_status(struct dvb_frontend *fe, fe_status_t *status)
-{
- struct tda10048_state *state = fe->demodulator_priv;
- u8 reg;
-
- *status = 0;
-
- reg = tda10048_readreg(state, TDA10048_SYNC_STATUS);
-
- dprintk(1, "%s() status =0x%02x\n", __func__, reg);
-
- if (reg & 0x02)
- *status |= FE_HAS_CARRIER;
-
- if (reg & 0x04)
- *status |= FE_HAS_SIGNAL;
-
- if (reg & 0x08) {
- *status |= FE_HAS_LOCK;
- *status |= FE_HAS_VITERBI;
- *status |= FE_HAS_SYNC;
- }
-
- return 0;
-}
-
-static int tda10048_read_ber(struct dvb_frontend *fe, u32 *ber)
-{
- struct tda10048_state *state = fe->demodulator_priv;
- static u32 cber_current;
- u32 cber_nmax;
- u64 cber_tmp;
-
- dprintk(1, "%s()\n", __func__);
-
- /* update cber on interrupt */
- if (tda10048_readreg(state, TDA10048_SOFT_IT_C3) & 0x01) {
- cber_tmp = tda10048_readreg(state, TDA10048_CBER_MSB) << 8 |
- tda10048_readreg(state, TDA10048_CBER_LSB);
- cber_nmax = tda10048_readreg(state, TDA10048_CBER_NMAX_MSB) << 8 |
- tda10048_readreg(state, TDA10048_CBER_NMAX_LSB);
- cber_tmp *= 100000000;
- cber_tmp *= 2;
- cber_tmp = div_u64(cber_tmp, (cber_nmax * 32) + 1);
- cber_current = (u32)cber_tmp;
- /* retrigger cber acquisition */
- tda10048_writereg(state, TDA10048_CVBER_CTRL, 0x39);
- }
- /* actual cber is (*ber)/1e8 */
- *ber = cber_current;
-
- return 0;
-}
-
-static int tda10048_read_signal_strength(struct dvb_frontend *fe,
- u16 *signal_strength)
-{
- struct tda10048_state *state = fe->demodulator_priv;
- u8 v;
-
- dprintk(1, "%s()\n", __func__);
-
- *signal_strength = 65535;
-
- v = tda10048_readreg(state, TDA10048_NP_OUT);
- if (v > 0)
- *signal_strength -= (v << 8) | v;
-
- return 0;
-}
-
-/* SNR lookup table */
-static struct snr_tab {
- u8 val;
- u8 data;
-} snr_tab[] = {
- { 0, 0 },
- { 1, 246 },
- { 2, 215 },
- { 3, 198 },
- { 4, 185 },
- { 5, 176 },
- { 6, 168 },
- { 7, 161 },
- { 8, 155 },
- { 9, 150 },
- { 10, 146 },
- { 11, 141 },
- { 12, 138 },
- { 13, 134 },
- { 14, 131 },
- { 15, 128 },
- { 16, 125 },
- { 17, 122 },
- { 18, 120 },
- { 19, 118 },
- { 20, 115 },
- { 21, 113 },
- { 22, 111 },
- { 23, 109 },
- { 24, 107 },
- { 25, 106 },
- { 26, 104 },
- { 27, 102 },
- { 28, 101 },
- { 29, 99 },
- { 30, 98 },
- { 31, 96 },
- { 32, 95 },
- { 33, 94 },
- { 34, 92 },
- { 35, 91 },
- { 36, 90 },
- { 37, 89 },
- { 38, 88 },
- { 39, 86 },
- { 40, 85 },
- { 41, 84 },
- { 42, 83 },
- { 43, 82 },
- { 44, 81 },
- { 45, 80 },
- { 46, 79 },
- { 47, 78 },
- { 48, 77 },
- { 49, 76 },
- { 50, 76 },
- { 51, 75 },
- { 52, 74 },
- { 53, 73 },
- { 54, 72 },
- { 56, 71 },
- { 57, 70 },
- { 58, 69 },
- { 60, 68 },
- { 61, 67 },
- { 63, 66 },
- { 64, 65 },
- { 66, 64 },
- { 67, 63 },
- { 68, 62 },
- { 69, 62 },
- { 70, 61 },
- { 72, 60 },
- { 74, 59 },
- { 75, 58 },
- { 77, 57 },
- { 79, 56 },
- { 81, 55 },
- { 83, 54 },
- { 85, 53 },
- { 87, 52 },
- { 89, 51 },
- { 91, 50 },
- { 93, 49 },
- { 95, 48 },
- { 97, 47 },
- { 100, 46 },
- { 102, 45 },
- { 104, 44 },
- { 107, 43 },
- { 109, 42 },
- { 112, 41 },
- { 114, 40 },
- { 117, 39 },
- { 120, 38 },
- { 123, 37 },
- { 125, 36 },
- { 128, 35 },
- { 131, 34 },
- { 134, 33 },
- { 138, 32 },
- { 141, 31 },
- { 144, 30 },
- { 147, 29 },
- { 151, 28 },
- { 154, 27 },
- { 158, 26 },
- { 162, 25 },
- { 165, 24 },
- { 169, 23 },
- { 173, 22 },
- { 177, 21 },
- { 181, 20 },
- { 186, 19 },
- { 190, 18 },
- { 194, 17 },
- { 199, 16 },
- { 204, 15 },
- { 208, 14 },
- { 213, 13 },
- { 218, 12 },
- { 223, 11 },
- { 229, 10 },
- { 234, 9 },
- { 239, 8 },
- { 245, 7 },
- { 251, 6 },
- { 255, 5 },
-};
-
-static int tda10048_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
- struct tda10048_state *state = fe->demodulator_priv;
- u8 v;
- int i, ret = -EINVAL;
-
- dprintk(1, "%s()\n", __func__);
-
- v = tda10048_readreg(state, TDA10048_NP_OUT);
- for (i = 0; i < ARRAY_SIZE(snr_tab); i++) {
- if (v <= snr_tab[i].val) {
- *snr = snr_tab[i].data;
- ret = 0;
- break;
- }
- }
-
- return ret;
-}
-
-static int tda10048_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
-{
- struct tda10048_state *state = fe->demodulator_priv;
-
- dprintk(1, "%s()\n", __func__);
-
- *ucblocks = tda10048_readreg(state, TDA10048_UNCOR_CPT_MSB) << 8 |
- tda10048_readreg(state, TDA10048_UNCOR_CPT_LSB);
- /* clear the uncorrected TS packets counter when saturated */
- if (*ucblocks == 0xFFFF)
- tda10048_writereg(state, TDA10048_UNCOR_CTRL, 0x80);
-
- return 0;
-}
-
-static int tda10048_get_frontend(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- struct tda10048_state *state = fe->demodulator_priv;
-
- dprintk(1, "%s()\n", __func__);
-
- p->inversion = tda10048_readreg(state, TDA10048_CONF_C1_1)
- & 0x20 ? INVERSION_ON : INVERSION_OFF;
-
- return tda10048_get_tps(state, p);
-}
-
-static int tda10048_get_tune_settings(struct dvb_frontend *fe,
- struct dvb_frontend_tune_settings *tune)
-{
- tune->min_delay_ms = 1000;
- return 0;
-}
-
-static void tda10048_release(struct dvb_frontend *fe)
-{
- struct tda10048_state *state = fe->demodulator_priv;
- dprintk(1, "%s()\n", __func__);
- kfree(state);
-}
-
-static void tda10048_establish_defaults(struct dvb_frontend *fe)
-{
- struct tda10048_state *state = fe->demodulator_priv;
- struct tda10048_config *config = &state->config;
-
- /* Validate/default the config */
- if (config->dtv6_if_freq_khz == 0) {
- config->dtv6_if_freq_khz = TDA10048_IF_4300;
- printk(KERN_WARNING "%s() tda10048_config.dtv6_if_freq_khz "
- "is not set (defaulting to %d)\n",
- __func__,
- config->dtv6_if_freq_khz);
- }
-
- if (config->dtv7_if_freq_khz == 0) {
- config->dtv7_if_freq_khz = TDA10048_IF_4300;
- printk(KERN_WARNING "%s() tda10048_config.dtv7_if_freq_khz "
- "is not set (defaulting to %d)\n",
- __func__,
- config->dtv7_if_freq_khz);
- }
-
- if (config->dtv8_if_freq_khz == 0) {
- config->dtv8_if_freq_khz = TDA10048_IF_4300;
- printk(KERN_WARNING "%s() tda10048_config.dtv8_if_freq_khz "
- "is not set (defaulting to %d)\n",
- __func__,
- config->dtv8_if_freq_khz);
- }
-
- if (config->clk_freq_khz == 0) {
- config->clk_freq_khz = TDA10048_CLK_16000;
- printk(KERN_WARNING "%s() tda10048_config.clk_freq_khz "
- "is not set (defaulting to %d)\n",
- __func__,
- config->clk_freq_khz);
- }
-}
-
-static struct dvb_frontend_ops tda10048_ops;
-
-struct dvb_frontend *tda10048_attach(const struct tda10048_config *config,
- struct i2c_adapter *i2c)
-{
- struct tda10048_state *state = NULL;
-
- dprintk(1, "%s()\n", __func__);
-
- /* allocate memory for the internal state */
- state = kzalloc(sizeof(struct tda10048_state), GFP_KERNEL);
- if (state == NULL)
- goto error;
-
- /* setup the state and clone the config */
- memcpy(&state->config, config, sizeof(*config));
- state->i2c = i2c;
- state->fwloaded = config->no_firmware;
- state->bandwidth = 8000000;
-
- /* check if the demod is present */
- if (tda10048_readreg(state, TDA10048_IDENTITY) != 0x048)
- goto error;
-
- /* create dvb_frontend */
- memcpy(&state->frontend.ops, &tda10048_ops,
- sizeof(struct dvb_frontend_ops));
- state->frontend.demodulator_priv = state;
-
- /* set pll */
- if (config->set_pll) {
- state->pll_mfactor = config->pll_m;
- state->pll_nfactor = config->pll_n;
- state->pll_pfactor = config->pll_p;
- } else {
- state->pll_mfactor = 10;
- state->pll_nfactor = 3;
- state->pll_pfactor = 0;
- }
-
- /* Establish any defaults the the user didn't pass */
- tda10048_establish_defaults(&state->frontend);
-
- /* Set the xtal and freq defaults */
- if (tda10048_set_if(&state->frontend, 8000000) != 0)
- goto error;
-
- /* Default bandwidth */
- if (tda10048_set_bandwidth(&state->frontend, 8000000) != 0)
- goto error;
-
- /* Leave the gate closed */
- tda10048_i2c_gate_ctrl(&state->frontend, 0);
-
- return &state->frontend;
-
-error:
- kfree(state);
- return NULL;
-}
-EXPORT_SYMBOL(tda10048_attach);
-
-static struct dvb_frontend_ops tda10048_ops = {
- .delsys = { SYS_DVBT },
- .info = {
- .name = "NXP TDA10048HN DVB-T",
- .frequency_min = 177000000,
- .frequency_max = 858000000,
- .frequency_stepsize = 166666,
- .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
- FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
- FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
- FE_CAN_HIERARCHY_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
- FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_RECOVER
- },
-
- .release = tda10048_release,
- .init = tda10048_init,
- .i2c_gate_ctrl = tda10048_i2c_gate_ctrl,
- .set_frontend = tda10048_set_frontend,
- .get_frontend = tda10048_get_frontend,
- .get_tune_settings = tda10048_get_tune_settings,
- .read_status = tda10048_read_status,
- .read_ber = tda10048_read_ber,
- .read_signal_strength = tda10048_read_signal_strength,
- .read_snr = tda10048_read_snr,
- .read_ucblocks = tda10048_read_ucblocks,
-};
-
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Enable verbose debug messages");
-
-MODULE_DESCRIPTION("NXP TDA10048HN DVB-T Demodulator driver");
-MODULE_AUTHOR("Steven Toth");
-MODULE_LICENSE("GPL");