diff options
Diffstat (limited to 'drivers/media/dvb/frontends/tda1004x.c')
| -rw-r--r-- | drivers/media/dvb/frontends/tda1004x.c | 1381 |
1 files changed, 0 insertions, 1381 deletions
diff --git a/drivers/media/dvb/frontends/tda1004x.c b/drivers/media/dvb/frontends/tda1004x.c deleted file mode 100644 index 35d72b4..0000000 --- a/drivers/media/dvb/frontends/tda1004x.c +++ /dev/null @@ -1,1381 +0,0 @@ - /* - Driver for Philips tda1004xh OFDM Demodulator - - (c) 2003, 2004 Andrew de Quincey & Robert Schlabbach - - 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. - - */ -/* - * This driver needs external firmware. Please use the commands - * "<kerneldir>/Documentation/dvb/get_dvb_firmware tda10045", - * "<kerneldir>/Documentation/dvb/get_dvb_firmware tda10046" to - * download/extract them, and then copy them to /usr/lib/hotplug/firmware - * or /lib/firmware (depending on configuration of firmware hotplug). - */ -#define TDA10045_DEFAULT_FIRMWARE "dvb-fe-tda10045.fw" -#define TDA10046_DEFAULT_FIRMWARE "dvb-fe-tda10046.fw" - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/device.h> -#include <linux/jiffies.h> -#include <linux/string.h> -#include <linux/slab.h> - -#include "dvb_frontend.h" -#include "tda1004x.h" - -static int debug; -#define dprintk(args...) \ - do { \ - if (debug) printk(KERN_DEBUG "tda1004x: " args); \ - } while (0) - -#define TDA1004X_CHIPID 0x00 -#define TDA1004X_AUTO 0x01 -#define TDA1004X_IN_CONF1 0x02 -#define TDA1004X_IN_CONF2 0x03 -#define TDA1004X_OUT_CONF1 0x04 -#define TDA1004X_OUT_CONF2 0x05 -#define TDA1004X_STATUS_CD 0x06 -#define TDA1004X_CONFC4 0x07 -#define TDA1004X_DSSPARE2 0x0C -#define TDA10045H_CODE_IN 0x0D -#define TDA10045H_FWPAGE 0x0E -#define TDA1004X_SCAN_CPT 0x10 -#define TDA1004X_DSP_CMD 0x11 -#define TDA1004X_DSP_ARG 0x12 -#define TDA1004X_DSP_DATA1 0x13 -#define TDA1004X_DSP_DATA2 0x14 -#define TDA1004X_CONFADC1 0x15 -#define TDA1004X_CONFC1 0x16 -#define TDA10045H_S_AGC 0x1a -#define TDA10046H_AGC_TUN_LEVEL 0x1a -#define TDA1004X_SNR 0x1c -#define TDA1004X_CONF_TS1 0x1e -#define TDA1004X_CONF_TS2 0x1f -#define TDA1004X_CBER_RESET 0x20 -#define TDA1004X_CBER_MSB 0x21 -#define TDA1004X_CBER_LSB 0x22 -#define TDA1004X_CVBER_LUT 0x23 -#define TDA1004X_VBER_MSB 0x24 -#define TDA1004X_VBER_MID 0x25 -#define TDA1004X_VBER_LSB 0x26 -#define TDA1004X_UNCOR 0x27 - -#define TDA10045H_CONFPLL_P 0x2D -#define TDA10045H_CONFPLL_M_MSB 0x2E -#define TDA10045H_CONFPLL_M_LSB 0x2F -#define TDA10045H_CONFPLL_N 0x30 - -#define TDA10046H_CONFPLL1 0x2D -#define TDA10046H_CONFPLL2 0x2F -#define TDA10046H_CONFPLL3 0x30 -#define TDA10046H_TIME_WREF1 0x31 -#define TDA10046H_TIME_WREF2 0x32 -#define TDA10046H_TIME_WREF3 0x33 -#define TDA10046H_TIME_WREF4 0x34 -#define TDA10046H_TIME_WREF5 0x35 - -#define TDA10045H_UNSURW_MSB 0x31 -#define TDA10045H_UNSURW_LSB 0x32 -#define TDA10045H_WREF_MSB 0x33 -#define TDA10045H_WREF_MID 0x34 -#define TDA10045H_WREF_LSB 0x35 -#define TDA10045H_MUXOUT 0x36 -#define TDA1004X_CONFADC2 0x37 - -#define TDA10045H_IOFFSET 0x38 - -#define TDA10046H_CONF_TRISTATE1 0x3B -#define TDA10046H_CONF_TRISTATE2 0x3C -#define TDA10046H_CONF_POLARITY 0x3D -#define TDA10046H_FREQ_OFFSET 0x3E -#define TDA10046H_GPIO_OUT_SEL 0x41 -#define TDA10046H_GPIO_SELECT 0x42 -#define TDA10046H_AGC_CONF 0x43 -#define TDA10046H_AGC_THR 0x44 -#define TDA10046H_AGC_RENORM 0x45 -#define TDA10046H_AGC_GAINS 0x46 -#define TDA10046H_AGC_TUN_MIN 0x47 -#define TDA10046H_AGC_TUN_MAX 0x48 -#define TDA10046H_AGC_IF_MIN 0x49 -#define TDA10046H_AGC_IF_MAX 0x4A - -#define TDA10046H_FREQ_PHY2_MSB 0x4D -#define TDA10046H_FREQ_PHY2_LSB 0x4E - -#define TDA10046H_CVBER_CTRL 0x4F -#define TDA10046H_AGC_IF_LEVEL 0x52 -#define TDA10046H_CODE_CPT 0x57 -#define TDA10046H_CODE_IN 0x58 - - -static int tda1004x_write_byteI(struct tda1004x_state *state, int reg, int data) -{ - int ret; - u8 buf[] = { reg, data }; - struct i2c_msg msg = { .flags = 0, .buf = buf, .len = 2 }; - - dprintk("%s: reg=0x%x, data=0x%x\n", __func__, reg, data); - - msg.addr = state->config->demod_address; - ret = i2c_transfer(state->i2c, &msg, 1); - - if (ret != 1) - dprintk("%s: error reg=0x%x, data=0x%x, ret=%i\n", - __func__, reg, data, ret); - - dprintk("%s: success reg=0x%x, data=0x%x, ret=%i\n", __func__, - reg, data, ret); - return (ret != 1) ? -1 : 0; -} - -static int tda1004x_read_byte(struct tda1004x_state *state, int reg) -{ - int ret; - u8 b0[] = { reg }; - u8 b1[] = { 0 }; - struct i2c_msg msg[] = {{ .flags = 0, .buf = b0, .len = 1 }, - { .flags = I2C_M_RD, .buf = b1, .len = 1 }}; - - dprintk("%s: reg=0x%x\n", __func__, reg); - - msg[0].addr = state->config->demod_address; - msg[1].addr = state->config->demod_address; - ret = i2c_transfer(state->i2c, msg, 2); - - if (ret != 2) { - dprintk("%s: error reg=0x%x, ret=%i\n", __func__, reg, - ret); - return -EINVAL; - } - - dprintk("%s: success reg=0x%x, data=0x%x, ret=%i\n", __func__, - reg, b1[0], ret); - return b1[0]; -} - -static int tda1004x_write_mask(struct tda1004x_state *state, int reg, int mask, int data) -{ - int val; - dprintk("%s: reg=0x%x, mask=0x%x, data=0x%x\n", __func__, reg, - mask, data); - - // read a byte and check - val = tda1004x_read_byte(state, reg); - if (val < 0) - return val; - - // mask if off - val = val & ~mask; - val |= data & 0xff; - - // write it out again - return tda1004x_write_byteI(state, reg, val); -} - -static int tda1004x_write_buf(struct tda1004x_state *state, int reg, unsigned char *buf, int len) -{ - int i; - int result; - - dprintk("%s: reg=0x%x, len=0x%x\n", __func__, reg, len); - - result = 0; - for (i = 0; i < len; i++) { - result = tda1004x_write_byteI(state, reg + i, buf[i]); - if (result != 0) - break; - } - - return result; -} - -static int tda1004x_enable_tuner_i2c(struct tda1004x_state *state) -{ - int result; - dprintk("%s\n", __func__); - - result = tda1004x_write_mask(state, TDA1004X_CONFC4, 2, 2); - msleep(20); - return result; -} - -static int tda1004x_disable_tuner_i2c(struct tda1004x_state *state) -{ - dprintk("%s\n", __func__); - - return tda1004x_write_mask(state, TDA1004X_CONFC4, 2, 0); -} - -static int tda10045h_set_bandwidth(struct tda1004x_state *state, - u32 bandwidth) -{ - static u8 bandwidth_6mhz[] = { 0x02, 0x00, 0x3d, 0x00, 0x60, 0x1e, 0xa7, 0x45, 0x4f }; - static u8 bandwidth_7mhz[] = { 0x02, 0x00, 0x37, 0x00, 0x4a, 0x2f, 0x6d, 0x76, 0xdb }; - static u8 bandwidth_8mhz[] = { 0x02, 0x00, 0x3d, 0x00, 0x48, 0x17, 0x89, 0xc7, 0x14 }; - - switch (bandwidth) { - case 6000000: - tda1004x_write_buf(state, TDA10045H_CONFPLL_P, bandwidth_6mhz, sizeof(bandwidth_6mhz)); - break; - - case 7000000: - tda1004x_write_buf(state, TDA10045H_CONFPLL_P, bandwidth_7mhz, sizeof(bandwidth_7mhz)); - break; - - case 8000000: - tda1004x_write_buf(state, TDA10045H_CONFPLL_P, bandwidth_8mhz, sizeof(bandwidth_8mhz)); - break; - - default: - return -EINVAL; - } - - tda1004x_write_byteI(state, TDA10045H_IOFFSET, 0); - - return 0; -} - -static int tda10046h_set_bandwidth(struct tda1004x_state *state, - u32 bandwidth) -{ - static u8 bandwidth_6mhz_53M[] = { 0x7b, 0x2e, 0x11, 0xf0, 0xd2 }; - static u8 bandwidth_7mhz_53M[] = { 0x6a, 0x02, 0x6a, 0x43, 0x9f }; - static u8 bandwidth_8mhz_53M[] = { 0x5c, 0x32, 0xc2, 0x96, 0x6d }; - - static u8 bandwidth_6mhz_48M[] = { 0x70, 0x02, 0x49, 0x24, 0x92 }; - static u8 bandwidth_7mhz_48M[] = { 0x60, 0x02, 0xaa, 0xaa, 0xab }; - static u8 bandwidth_8mhz_48M[] = { 0x54, 0x03, 0x0c, 0x30, 0xc3 }; - int tda10046_clk53m; - - if ((state->config->if_freq == TDA10046_FREQ_045) || - (state->config->if_freq == TDA10046_FREQ_052)) - tda10046_clk53m = 0; - else - tda10046_clk53m = 1; - switch (bandwidth) { - case 6000000: - if (tda10046_clk53m) - tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_6mhz_53M, - sizeof(bandwidth_6mhz_53M)); - else - tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_6mhz_48M, - sizeof(bandwidth_6mhz_48M)); - if (state->config->if_freq == TDA10046_FREQ_045) { - tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0a); - tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0xab); - } - break; - - case 7000000: - if (tda10046_clk53m) - tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_7mhz_53M, - sizeof(bandwidth_7mhz_53M)); - else - tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_7mhz_48M, - sizeof(bandwidth_7mhz_48M)); - if (state->config->if_freq == TDA10046_FREQ_045) { - tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0c); - tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x00); - } - break; - - case 8000000: - if (tda10046_clk53m) - tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_8mhz_53M, - sizeof(bandwidth_8mhz_53M)); - else - tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_8mhz_48M, - sizeof(bandwidth_8mhz_48M)); - if (state->config->if_freq == TDA10046_FREQ_045) { - tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0d); - tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x55); - } - break; - - default: - return -EINVAL; - } - - return 0; -} - -static int tda1004x_do_upload(struct tda1004x_state *state, - const unsigned char *mem, unsigned int len, - u8 dspCodeCounterReg, u8 dspCodeInReg) -{ - u8 buf[65]; - struct i2c_msg fw_msg = { .flags = 0, .buf = buf, .len = 0 }; - int tx_size; - int pos = 0; - - /* clear code counter */ - tda1004x_write_byteI(state, dspCodeCounterReg, 0); - fw_msg.addr = state->config->demod_address; - - buf[0] = dspCodeInReg; - while (pos != len) { - // work out how much to send this time - tx_size = len - pos; - if (tx_size > 0x10) - tx_size = 0x10; - - // send the chunk - memcpy(buf + 1, mem + pos, tx_size); - fw_msg.len = tx_size + 1; - if (i2c_transfer(state->i2c, &fw_msg, 1) != 1) { - printk(KERN_ERR "tda1004x: Error during firmware upload\n"); - return -EIO; - } - pos += tx_size; - - dprintk("%s: fw_pos=0x%x\n", __func__, pos); - } - // give the DSP a chance to settle 03/10/05 Hac - msleep(100); - - return 0; -} - -static int tda1004x_check_upload_ok(struct tda1004x_state *state) -{ - u8 data1, data2; - unsigned long timeout; - - if (state->demod_type == TDA1004X_DEMOD_TDA10046) { - timeout = jiffies + 2 * HZ; - while(!(tda1004x_read_byte(state, TDA1004X_STATUS_CD) & 0x20)) { - if (time_after(jiffies, timeout)) { - printk(KERN_ERR "tda1004x: timeout waiting for DSP ready\n"); - break; - } - msleep(1); - } - } else - msleep(100); - - // check upload was OK - tda1004x_write_mask(state, TDA1004X_CONFC4, 0x10, 0); // we want to read from the DSP - tda1004x_write_byteI(state, TDA1004X_DSP_CMD, 0x67); - - data1 = tda1004x_read_byte(state, TDA1004X_DSP_DATA1); - data2 = tda1004x_read_byte(state, TDA1004X_DSP_DATA2); - if (data1 != 0x67 || data2 < 0x20 || data2 > 0x2e) { - printk(KERN_INFO "tda1004x: found firmware revision %x -- invalid\n", data2); - return -EIO; - } - printk(KERN_INFO "tda1004x: found firmware revision %x -- ok\n", data2); - return 0; -} - -static int tda10045_fwupload(struct dvb_frontend* fe) -{ - struct tda1004x_state* state = fe->demodulator_priv; - int ret; - const struct firmware *fw; - - /* don't re-upload unless necessary */ - if (tda1004x_check_upload_ok(state) == 0) - return 0; - - /* request the firmware, this will block until someone uploads it */ - printk(KERN_INFO "tda1004x: waiting for firmware upload (%s)...\n", TDA10045_DEFAULT_FIRMWARE); - ret = state->config->request_firmware(fe, &fw, TDA10045_DEFAULT_FIRMWARE); - if (ret) { - printk(KERN_ERR "tda1004x: no firmware upload (timeout or file not found?)\n"); - return ret; - } - - /* reset chip */ - tda1004x_write_mask(state, TDA1004X_CONFC4, 0x10, 0); - tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 8); - tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 0); - msleep(10); - - /* set parameters */ - tda10045h_set_bandwidth(state, 8000000); - - ret = tda1004x_do_upload(state, fw->data, fw->size, TDA10045H_FWPAGE, TDA10045H_CODE_IN); - release_firmware(fw); - if (ret) - return ret; - printk(KERN_INFO "tda1004x: firmware upload complete\n"); - - /* wait for DSP to initialise */ - /* DSPREADY doesn't seem to work on the TDA10045H */ - msleep(100); - - return tda1004x_check_upload_ok(state); -} - -static void tda10046_init_plls(struct dvb_frontend* fe) -{ - struct tda1004x_state* state = fe->demodulator_priv; - int tda10046_clk53m; - - if ((state->config->if_freq == TDA10046_FREQ_045) || - (state->config->if_freq == TDA10046_FREQ_052)) - tda10046_clk53m = 0; - else - tda10046_clk53m = 1; - - tda1004x_write_byteI(state, TDA10046H_CONFPLL1, 0xf0); - if(tda10046_clk53m) { - printk(KERN_INFO "tda1004x: setting up plls for 53MHz sampling clock\n"); - tda1004x_write_byteI(state, TDA10046H_CONFPLL2, 0x08); // PLL M = 8 - } else { - printk(KERN_INFO "tda1004x: setting up plls for 48MHz sampling clock\n"); - tda1004x_write_byteI(state, TDA10046H_CONFPLL2, 0x03); // PLL M = 3 - } - if (state->config->xtal_freq == TDA10046_XTAL_4M ) { - dprintk("%s: setting up PLLs for a 4 MHz Xtal\n", __func__); - tda1004x_write_byteI(state, TDA10046H_CONFPLL3, 0); // PLL P = N = 0 - } else { - dprintk("%s: setting up PLLs for a 16 MHz Xtal\n", __func__); - tda1004x_write_byteI(state, TDA10046H_CONFPLL3, 3); // PLL P = 0, N = 3 - } - if(tda10046_clk53m) - tda1004x_write_byteI(state, TDA10046H_FREQ_OFFSET, 0x67); - else - tda1004x_write_byteI(state, TDA10046H_FREQ_OFFSET, 0x72); - /* Note clock frequency is handled implicitly */ - switch (state->config->if_freq) { - case TDA10046_FREQ_045: - tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0c); - tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x00); - break; - case TDA10046_FREQ_052: - tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0d); - tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0xc7); - break; - case TDA10046_FREQ_3617: - tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0xd7); - tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x59); - break; - case TDA10046_FREQ_3613: - tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0xd7); - tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x3f); - break; - } - tda10046h_set_bandwidth(state, 8000000); /* default bandwidth 8 MHz */ - /* let the PLLs settle */ - msleep(120); -} - -static int tda10046_fwupload(struct dvb_frontend* fe) -{ - struct tda1004x_state* state = fe->demodulator_priv; - int ret, confc4; - const struct firmware *fw; - - /* reset + wake up chip */ - if (state->config->xtal_freq == TDA10046_XTAL_4M) { - confc4 = 0; - } else { - dprintk("%s: 16MHz Xtal, reducing I2C speed\n", __func__); - confc4 = 0x80; - } - tda1004x_write_byteI(state, TDA1004X_CONFC4, confc4); - - tda1004x_write_mask(state, TDA10046H_CONF_TRISTATE1, 1, 0); - /* set GPIO 1 and 3 */ - if (state->config->gpio_config != TDA10046_GPTRI) { - tda1004x_write_byteI(state, TDA10046H_CONF_TRISTATE2, 0x33); - tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0x0f, state->config->gpio_config &0x0f); - } - /* let the clocks recover from sleep */ - msleep(10); - - /* The PLLs need to be reprogrammed after sleep */ - tda10046_init_plls(fe); - tda1004x_write_mask(state, TDA1004X_CONFADC2, 0xc0, 0); - - /* don't re-upload unless necessary */ - if (tda1004x_check_upload_ok(state) == 0) - return 0; - - /* - For i2c normal work, we need to slow down the bus speed. - However, the slow down breaks the eeprom firmware load. - So, use normal speed for eeprom booting and then restore the - i2c speed after that. Tested with MSI TV @nyware A/D board, - that comes with firmware version 29 inside their eeprom. - - It should also be noticed that no other I2C transfer should - be in course while booting from eeprom, otherwise, tda10046 - goes into an instable state. So, proper locking are needed - at the i2c bus master. - */ - printk(KERN_INFO "tda1004x: trying to boot from eeprom\n"); - tda1004x_write_byteI(state, TDA1004X_CONFC4, 4); - msleep(300); - tda1004x_write_byteI(state, TDA1004X_CONFC4, confc4); - - /* Checks if eeprom firmware went without troubles */ - if (tda1004x_check_upload_ok(state) == 0) - return 0; - - /* eeprom firmware didn't work. Load one manually. */ - - if (state->config->request_firmware != NULL) { - /* request the firmware, this will block until someone uploads it */ - printk(KERN_INFO "tda1004x: waiting for firmware upload...\n"); - ret = state->config->request_firmware(fe, &fw, TDA10046_DEFAULT_FIRMWARE); - if (ret) { - /* remain compatible to old bug: try to load with tda10045 image name */ - ret = state->config->request_firmware(fe, &fw, TDA10045_DEFAULT_FIRMWARE); - if (ret) { - printk(KERN_ERR "tda1004x: no firmware upload (timeout or file not found?)\n"); - return ret; - } else { - printk(KERN_INFO "tda1004x: please rename the firmware file to %s\n", - TDA10046_DEFAULT_FIRMWARE); - } - } - } else { - printk(KERN_ERR "tda1004x: no request function defined, can't upload from file\n"); - return -EIO; - } - tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 8); // going to boot from HOST - ret = tda1004x_do_upload(state, fw->data, fw->size, TDA10046H_CODE_CPT, TDA10046H_CODE_IN); - release_firmware(fw); - return tda1004x_check_upload_ok(state); -} - -static int tda1004x_encode_fec(int fec) -{ - // convert known FEC values - switch (fec) { - case FEC_1_2: - return 0; - case FEC_2_3: - return 1; - case FEC_3_4: - return 2; - case FEC_5_6: - return 3; - case FEC_7_8: - return 4; - } - - // unsupported - return -EINVAL; -} - -static int tda1004x_decode_fec(int tdafec) -{ - // convert known FEC values - switch (tdafec) { - 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_7_8; - } - - // unsupported - return -1; -} - -static int tda1004x_write(struct dvb_frontend* fe, const u8 buf[], int len) -{ - struct tda1004x_state* state = fe->demodulator_priv; - - if (len != 2) - return -EINVAL; - - return tda1004x_write_byteI(state, buf[0], buf[1]); -} - -static int tda10045_init(struct dvb_frontend* fe) -{ - struct tda1004x_state* state = fe->demodulator_priv; - - dprintk("%s\n", __func__); - - if (tda10045_fwupload(fe)) { - printk("tda1004x: firmware upload failed\n"); - return -EIO; - } - - tda1004x_write_mask(state, TDA1004X_CONFADC1, 0x10, 0); // wake up the ADC - - // tda setup - tda1004x_write_mask(state, TDA1004X_CONFC4, 0x20, 0); // disable DSP watchdog timer - tda1004x_write_mask(state, TDA1004X_AUTO, 8, 0); // select HP stream - tda1004x_write_mask(state, TDA1004X_CONFC1, 0x40, 0); // set polarity of VAGC signal - tda1004x_write_mask(state, TDA1004X_CONFC1, 0x80, 0x80); // enable pulse killer - tda1004x_write_mask(state, TDA1004X_AUTO, 0x10, 0x10); // enable auto offset - tda1004x_write_mask(state, TDA1004X_IN_CONF2, 0xC0, 0x0); // no frequency offset - tda1004x_write_byteI(state, TDA1004X_CONF_TS1, 0); // setup MPEG2 TS interface - tda1004x_write_byteI(state, TDA1004X_CONF_TS2, 0); // setup MPEG2 TS interface - tda1004x_write_mask(state, TDA1004X_VBER_MSB, 0xe0, 0xa0); // 10^6 VBER measurement bits - tda1004x_write_mask(state, TDA1004X_CONFC1, 0x10, 0); // VAGC polarity - tda1004x_write_byteI(state, TDA1004X_CONFADC1, 0x2e); - - tda1004x_write_mask(state, 0x1f, 0x01, state->config->invert_oclk); - - return 0; -} - -static int tda10046_init(struct dvb_frontend* fe) -{ - struct tda1004x_state* state = fe->demodulator_priv; - dprintk("%s\n", __func__); - - if (tda10046_fwupload(fe)) { - printk("tda1004x: firmware upload failed\n"); - return -EIO; - } - - // tda setup - tda1004x_write_mask(state, TDA1004X_CONFC4, 0x20, 0); // disable DSP watchdog timer - tda1004x_write_byteI(state, TDA1004X_AUTO, 0x87); // 100 ppm crystal, select HP stream - tda1004x_write_byteI(state, TDA1004X_CONFC1, 0x88); // enable pulse killer - - switch (state->config->agc_config) { - case TDA10046_AGC_DEFAULT: - tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x00); // AGC setup - tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0xf0, 0x60); // set AGC polarities - break; - case TDA10046_AGC_IFO_AUTO_NEG: - tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x0a); // AGC setup - tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0xf0, 0x60); // set AGC polarities - break; - case TDA10046_AGC_IFO_AUTO_POS: - tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x0a); // AGC setup - tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0xf0, 0x00); // set AGC polarities - break; - case TDA10046_AGC_TDA827X: - tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x02); // AGC setup - tda1004x_write_byteI(state, TDA10046H_AGC_THR, 0x70); // AGC Threshold - tda1004x_write_byteI(state, TDA10046H_AGC_RENORM, 0x08); // Gain Renormalize - tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0xf0, 0x60); // set AGC polarities - break; - } - if (state->config->ts_mode == 0) { - tda1004x_write_mask(state, TDA10046H_CONF_TRISTATE1, 0xc0, 0x40); - tda1004x_write_mask(state, 0x3a, 0x80, state->config->invert_oclk << 7); - } else { - tda1004x_write_mask(state, TDA10046H_CONF_TRISTATE1, 0xc0, 0x80); - tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0x10, - state->config->invert_oclk << 4); - } - tda1004x_write_byteI(state, TDA1004X_CONFADC2, 0x38); - tda1004x_write_mask (state, TDA10046H_CONF_TRISTATE1, 0x3e, 0x38); // Turn IF AGC output on - tda1004x_write_byteI(state, TDA10046H_AGC_TUN_MIN, 0); // } - tda1004x_write_byteI(state, TDA10046H_AGC_TUN_MAX, 0xff); // } AGC min/max values - tda1004x_write_byteI(state, TDA10046H_AGC_IF_MIN, 0); // } - tda1004x_write_byteI(state, TDA10046H_AGC_IF_MAX, 0xff); // } - tda1004x_write_byteI(state, TDA10046H_AGC_GAINS, 0x12); // IF gain 2, TUN gain 1 - tda1004x_write_byteI(state, TDA10046H_CVBER_CTRL, 0x1a); // 10^6 VBER measurement bits - tda1004x_write_byteI(state, TDA1004X_CONF_TS1, 7); // MPEG2 interface config - tda1004x_write_byteI(state, TDA1004X_CONF_TS2, 0xc0); // MPEG2 interface config - // tda1004x_write_mask(state, 0x50, 0x80, 0x80); // handle out of guard echoes - - return 0; -} - -static int tda1004x_set_fe(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *fe_params = &fe->dtv_property_cache; - struct tda1004x_state* state = fe->demodulator_priv; - int tmp; - int inversion; - - dprintk("%s\n", __func__); - - if (state->demod_type == TDA1004X_DEMOD_TDA10046) { - // setup auto offset - tda1004x_write_mask(state, TDA1004X_AUTO, 0x10, 0x10); - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x80, 0); - tda1004x_write_mask(state, TDA1004X_IN_CONF2, 0xC0, 0); - - // disable agc_conf[2] - tda1004x_write_mask(state, TDA10046H_AGC_CONF, 4, 0); - } - - // set frequency - 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); - } - - // Hardcoded to use auto as much as possible on the TDA10045 as it - // is very unreliable if AUTO mode is _not_ used. - if (state->demod_type == TDA1004X_DEMOD_TDA10045) { - fe_params->code_rate_HP = FEC_AUTO; - fe_params->guard_interval = GUARD_INTERVAL_AUTO; - fe_params->transmission_mode = TRANSMISSION_MODE_AUTO; - } - - // Set standard params.. or put them to auto - if ((fe_params->code_rate_HP == FEC_AUTO) || - (fe_params->code_rate_LP == FEC_AUTO) || - (fe_params->modulation == QAM_AUTO) || - (fe_params->hierarchy == HIERARCHY_AUTO)) { - tda1004x_write_mask(state, TDA1004X_AUTO, 1, 1); // enable auto - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x03, 0); /* turn off modulation bits */ - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x60, 0); // turn off hierarchy bits - tda1004x_write_mask(state, TDA1004X_IN_CONF2, 0x3f, 0); // turn off FEC bits - } else { - tda1004x_write_mask(state, TDA1004X_AUTO, 1, 0); // disable auto - - // set HP FEC - tmp = tda1004x_encode_fec(fe_params->code_rate_HP); - if (tmp < 0) - return tmp; - tda1004x_write_mask(state, TDA1004X_IN_CONF2, 7, tmp); - - // set LP FEC - tmp = tda1004x_encode_fec(fe_params->code_rate_LP); - if (tmp < 0) - return tmp; - tda1004x_write_mask(state, TDA1004X_IN_CONF2, 0x38, tmp << 3); - - /* set modulation */ - switch (fe_params->modulation) { - case QPSK: - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 3, 0); - break; - - case QAM_16: - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 3, 1); - break; - - case QAM_64: - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 3, 2); - break; - - default: - return -EINVAL; - } - - // set hierarchy - switch (fe_params->hierarchy) { - case HIERARCHY_NONE: - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x60, 0 << 5); - break; - - case HIERARCHY_1: - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x60, 1 << 5); - break; - - case HIERARCHY_2: - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x60, 2 << 5); - break; - - case HIERARCHY_4: - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x60, 3 << 5); - break; - - default: - return -EINVAL; - } - } - - // set bandwidth - switch (state->demod_type) { - case TDA1004X_DEMOD_TDA10045: - tda10045h_set_bandwidth(state, fe_params->bandwidth_hz); - break; - - case TDA1004X_DEMOD_TDA10046: - tda10046h_set_bandwidth(state, fe_params->bandwidth_hz); - break; - } - - // set inversion - inversion = fe_params->inversion; - if (state->config->invert) - inversion = inversion ? INVERSION_OFF : INVERSION_ON; - switch (inversion) { - case INVERSION_OFF: - tda1004x_write_mask(state, TDA1004X_CONFC1, 0x20, 0); - break; - - case INVERSION_ON: - tda1004x_write_mask(state, TDA1004X_CONFC1, 0x20, 0x20); - break; - - default: - return -EINVAL; - } - - // set guard interval - switch (fe_params->guard_interval) { - case GUARD_INTERVAL_1_32: - tda1004x_write_mask(state, TDA1004X_AUTO, 2, 0); - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x0c, 0 << 2); - break; - - case GUARD_INTERVAL_1_16: - tda1004x_write_mask(state, TDA1004X_AUTO, 2, 0); - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x0c, 1 << 2); - break; - - case GUARD_INTERVAL_1_8: - tda1004x_write_mask(state, TDA1004X_AUTO, 2, 0); - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x0c, 2 << 2); - break; - - case GUARD_INTERVAL_1_4: - tda1004x_write_mask(state, TDA1004X_AUTO, 2, 0); - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x0c, 3 << 2); - break; - - case GUARD_INTERVAL_AUTO: - tda1004x_write_mask(state, TDA1004X_AUTO, 2, 2); - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x0c, 0 << 2); - break; - - default: - return -EINVAL; - } - - // set transmission mode - switch (fe_params->transmission_mode) { - case TRANSMISSION_MODE_2K: - tda1004x_write_mask(state, TDA1004X_AUTO, 4, 0); - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x10, 0 << 4); - break; - - case TRANSMISSION_MODE_8K: - tda1004x_write_mask(state, TDA1004X_AUTO, 4, 0); - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x10, 1 << 4); - break; - - case TRANSMISSION_MODE_AUTO: - tda1004x_write_mask(state, TDA1004X_AUTO, 4, 4); - tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x10, 0); - break; - - default: - return -EINVAL; - } - - // start the lock - switch (state->demod_type) { - case TDA1004X_DEMOD_TDA10045: - tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 8); - tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 0); - break; - - case TDA1004X_DEMOD_TDA10046: - tda1004x_write_mask(state, TDA1004X_AUTO, 0x40, 0x40); - msleep(1); - tda1004x_write_mask(state, TDA10046H_AGC_CONF, 4, 1); - break; - } - - msleep(10); - - return 0; -} - -static int tda1004x_get_fe(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *fe_params = &fe->dtv_property_cache; - struct tda1004x_state* state = fe->demodulator_priv; - - dprintk("%s\n", __func__); - - // inversion status - fe_params->inversion = INVERSION_OFF; - if (tda1004x_read_byte(state, TDA1004X_CONFC1) & 0x20) - fe_params->inversion = INVERSION_ON; - if (state->config->invert) - fe_params->inversion = fe_params->inversion ? INVERSION_OFF : INVERSION_ON; - - // bandwidth - switch (state->demod_type) { - case TDA1004X_DEMOD_TDA10045: - switch (tda1004x_read_byte(state, TDA10045H_WREF_LSB)) { - case 0x14: - fe_params->bandwidth_hz = 8000000; - break; - case 0xdb: - fe_params->bandwidth_hz = 7000000; - break; - case 0x4f: - fe_params->bandwidth_hz = 6000000; - break; - } - break; - case TDA1004X_DEMOD_TDA10046: - switch (tda1004x_read_byte(state, TDA10046H_TIME_WREF1)) { - case 0x5c: - case 0x54: - fe_params->bandwidth_hz = 8000000; - break; - case 0x6a: - case 0x60: - fe_params->bandwidth_hz = 7000000; - break; - case 0x7b: - case 0x70: - fe_params->bandwidth_hz = 6000000; - break; - } - break; - } - - // FEC - fe_params->code_rate_HP = - tda1004x_decode_fec(tda1004x_read_byte(state, TDA1004X_OUT_CONF2) & 7); - fe_params->code_rate_LP = - tda1004x_decode_fec((tda1004x_read_byte(state, TDA1004X_OUT_CONF2) >> 3) & 7); - - /* modulation */ - switch (tda1004x_read_byte(state, TDA1004X_OUT_CONF1) & 3) { - case 0: - fe_params->modulation = QPSK; - break; - case 1: - fe_params->modulation = QAM_16; - break; - case 2: - fe_params->modulation = QAM_64; - break; - } - - // transmission mode - fe_params->transmission_mode = TRANSMISSION_MODE_2K; - if (tda1004x_read_byte(state, TDA1004X_OUT_CONF1) & 0x10) - fe_params->transmission_mode = TRANSMISSION_MODE_8K; - - // guard interval - switch ((tda1004x_read_byte(state, TDA1004X_OUT_CONF1) & 0x0c) >> 2) { - case 0: - fe_params->guard_interval = GUARD_INTERVAL_1_32; - break; - case 1: - fe_params->guard_interval = GUARD_INTERVAL_1_16; - break; - case 2: - fe_params->guard_interval = GUARD_INTERVAL_1_8; - break; - case 3: - fe_params->guard_interval = GUARD_INTERVAL_1_4; - break; - } - - // hierarchy - switch ((tda1004x_read_byte(state, TDA1004X_OUT_CONF1) & 0x60) >> 5) { - case 0: - fe_params->hierarchy = HIERARCHY_NONE; - break; - case 1: - fe_params->hierarchy = HIERARCHY_1; - break; - case 2: - fe_params->hierarchy = HIERARCHY_2; - break; - case 3: - fe_params->hierarchy = HIERARCHY_4; - break; - } - - return 0; -} - -static int tda1004x_read_status(struct dvb_frontend* fe, fe_status_t * fe_status) -{ - struct tda1004x_state* state = fe->demodulator_priv; - int status; - int cber; - int vber; - - dprintk("%s\n", __func__); - - // read status - status = tda1004x_read_byte(state, TDA1004X_STATUS_CD); - if (status == -1) - return -EIO; - - // decode - *fe_status = 0; - if (status & 4) - *fe_status |= FE_HAS_SIGNAL; - if (status & 2) - *fe_status |= FE_HAS_CARRIER; - if (status & 8) - *fe_status |= FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; - - // if we don't already have VITERBI (i.e. not LOCKED), see if the viterbi - // is getting anything valid - if (!(*fe_status & FE_HAS_VITERBI)) { - // read the CBER - cber = tda1004x_read_byte(state, TDA1004X_CBER_LSB); - if (cber == -1) - return -EIO; - status = tda1004x_read_byte(state, TDA1004X_CBER_MSB); - if (status == -1) - return -EIO; - cber |= (status << 8); - // The address 0x20 should be read to cope with a TDA10046 bug - tda1004x_read_byte(state, TDA1004X_CBER_RESET); - - if (cber != 65535) - *fe_status |= FE_HAS_VITERBI; - } - - // if we DO have some valid VITERBI output, but don't already have SYNC - // bytes (i.e. not LOCKED), see if the RS decoder is getting anything valid. - if ((*fe_status & FE_HAS_VITERBI) && (!(*fe_status & FE_HAS_SYNC))) { - // read the VBER - vber = tda1004x_read_byte(state, TDA1004X_VBER_LSB); - if (vber == -1) - return -EIO; - status = tda1004x_read_byte(state, TDA1004X_VBER_MID); - if (status == -1) - return -EIO; - vber |= (status << 8); - status = tda1004x_read_byte(state, TDA1004X_VBER_MSB); - if (status == -1) - return -EIO; - vber |= (status & 0x0f) << 16; - // The CVBER_LUT should be read to cope with TDA10046 hardware bug - tda1004x_read_byte(state, TDA1004X_CVBER_LUT); - - // if RS has passed some valid TS packets, then we must be - // getting some SYNC bytes - if (vber < 16632) - *fe_status |= FE_HAS_SYNC; - } - - // success - dprintk("%s: fe_status=0x%x\n", __func__, *fe_status); - return 0; -} - -static int tda1004x_read_signal_strength(struct dvb_frontend* fe, u16 * signal) -{ - struct tda1004x_state* state = fe->demodulator_priv; - int tmp; - int reg = 0; - - dprintk("%s\n", __func__); - - // determine the register to use - switch (state->demod_type) { - case TDA1004X_DEMOD_TDA10045: - reg = TDA10045H_S_AGC; - break; - - case TDA1004X_DEMOD_TDA10046: - reg = TDA10046H_AGC_IF_LEVEL; - break; - } - - // read it - tmp = tda1004x_read_byte(state, reg); - if (tmp < 0) - return -EIO; - - *signal = (tmp << 8) | tmp; - dprintk("%s: signal=0x%x\n", __func__, *signal); - return 0; -} - -static int tda1004x_read_snr(struct dvb_frontend* fe, u16 * snr) -{ - struct tda1004x_state* state = fe->demodulator_priv; - int tmp; - - dprintk("%s\n", __func__); - - // read it - tmp = tda1004x_read_byte(state, TDA1004X_SNR); - if (tmp < 0) - return -EIO; - tmp = 255 - tmp; - - *snr = ((tmp << 8) | tmp); - dprintk("%s: snr=0x%x\n", __func__, *snr); - return 0; -} - -static int tda1004x_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) -{ - struct tda1004x_state* state = fe->demodulator_priv; - int tmp; - int tmp2; - int counter; - - dprintk("%s\n", __func__); - - // read the UCBLOCKS and reset - counter = 0; - tmp = tda1004x_read_byte(state, TDA1004X_UNCOR); - if (tmp < 0) - return -EIO; - tmp &= 0x7f; - while (counter++ < 5) { - tda1004x_write_mask(state, TDA1004X_UNCOR, 0x80, 0); - tda1004x_write_mask(state, TDA1004X_UNCOR, 0x80, 0); - tda1004x_write_mask(state, TDA1004X_UNCOR, 0x80, 0); - - tmp2 = tda1004x_read_byte(state, TDA1004X_UNCOR); - if (tmp2 < 0) - return -EIO; - tmp2 &= 0x7f; - if ((tmp2 < tmp) || (tmp2 == 0)) - break; - } - - if (tmp != 0x7f) - *ucblocks = tmp; - else - *ucblocks = 0xffffffff; - - dprintk("%s: ucblocks=0x%x\n", __func__, *ucblocks); - return 0; -} - -static int tda1004x_read_ber(struct dvb_frontend* fe, u32* ber) -{ - struct tda1004x_state* state = fe->demodulator_priv; - int tmp; - - dprintk("%s\n", __func__); - - // read it in - tmp = tda1004x_read_byte(state, TDA1004X_CBER_LSB); - if (tmp < 0) - return -EIO; - *ber = tmp << 1; - tmp = tda1004x_read_byte(state, TDA1004X_CBER_MSB); - if (tmp < 0) - return -EIO; - *ber |= (tmp << 9); - // The address 0x20 should be read to cope with a TDA10046 bug - tda1004x_read_byte(state, TDA1004X_CBER_RESET); - - dprintk("%s: ber=0x%x\n", __func__, *ber); - return 0; -} - -static int tda1004x_sleep(struct dvb_frontend* fe) -{ - struct tda1004x_state* state = fe->demodulator_priv; - int gpio_conf; - - switch (state->demod_type) { - case TDA1004X_DEMOD_TDA10045: - tda1004x_write_mask(state, TDA1004X_CONFADC1, 0x10, 0x10); - break; - - case TDA1004X_DEMOD_TDA10046: - /* set outputs to tristate */ - tda1004x_write_byteI(state, TDA10046H_CONF_TRISTATE1, 0xff); - /* invert GPIO 1 and 3 if desired*/ - gpio_conf = state->config->gpio_config; - if (gpio_conf >= TDA10046_GP00_I) - tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0x0f, - (gpio_conf & 0x0f) ^ 0x0a); - - tda1004x_write_mask(state, TDA1004X_CONFADC2, 0xc0, 0xc0); - tda1004x_write_mask(state, TDA1004X_CONFC4, 1, 1); - break; - } - - return 0; -} - -static int tda1004x_i2c_gate_ctrl(struct dvb_frontend* fe, int enable) -{ - struct tda1004x_state* state = fe->demodulator_priv; - - if (enable) { - return tda1004x_enable_tuner_i2c(state); - } else { - return tda1004x_disable_tuner_i2c(state); - } -} - -static int tda1004x_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings) -{ - fesettings->min_delay_ms = 800; - /* Drift compensation makes no sense for DVB-T */ - fesettings->step_size = 0; - fesettings->max_drift = 0; - return 0; -} - -static void tda1004x_release(struct dvb_frontend* fe) -{ - struct tda1004x_state *state = fe->demodulator_priv; - kfree(state); -} - -static struct dvb_frontend_ops tda10045_ops = { - .delsys = { SYS_DVBT }, - .info = { - .name = "Philips TDA10045H DVB-T", - .frequency_min = 51000000, - .frequency_max = 858000000, - .frequency_stepsize = 166667, - .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_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO - }, - - .release = tda1004x_release, - - .init = tda10045_init, - .sleep = tda1004x_sleep, - .write = tda1004x_write, - .i2c_gate_ctrl = tda1004x_i2c_gate_ctrl, - - .set_frontend = tda1004x_set_fe, - .get_frontend = tda1004x_get_fe, - .get_tune_settings = tda1004x_get_tune_settings, - - .read_status = tda1004x_read_status, - .read_ber = tda1004x_read_ber, - .read_signal_strength = tda1004x_read_signal_strength, - .read_snr = tda1004x_read_snr, - .read_ucblocks = tda1004x_read_ucblocks, -}; - -struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config, - struct i2c_adapter* i2c) -{ - struct tda1004x_state *state; - int id; - - /* allocate memory for the internal state */ - state = kzalloc(sizeof(struct tda1004x_state), GFP_KERNEL); - if (!state) { - printk(KERN_ERR "Can't allocate memory for tda10045 state\n"); - return NULL; - } - - /* setup the state */ - state->config = config; - state->i2c = i2c; - state->demod_type = TDA1004X_DEMOD_TDA10045; - - /* check if the demod is there */ - id = tda1004x_read_byte(state, TDA1004X_CHIPID); - if (id < 0) { - printk(KERN_ERR "tda10045: chip is not answering. Giving up.\n"); - kfree(state); - return NULL; - } - - if (id != 0x25) { - printk(KERN_ERR "Invalid tda1004x ID = 0x%02x. Can't proceed\n", id); - kfree(state); - return NULL; - } - - /* create dvb_frontend */ - memcpy(&state->frontend.ops, &tda10045_ops, sizeof(struct dvb_frontend_ops)); - state->frontend.demodulator_priv = state; - return &state->frontend; -} - -static struct dvb_frontend_ops tda10046_ops = { - .delsys = { SYS_DVBT }, - .info = { - .name = "Philips TDA10046H DVB-T", - .frequency_min = 51000000, - .frequency_max = 858000000, - .frequency_stepsize = 166667, - .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_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO - }, - - .release = tda1004x_release, - - .init = tda10046_init, - .sleep = tda1004x_sleep, - .write = tda1004x_write, - .i2c_gate_ctrl = tda1004x_i2c_gate_ctrl, - - .set_frontend = tda1004x_set_fe, - .get_frontend = tda1004x_get_fe, - .get_tune_settings = tda1004x_get_tune_settings, - - .read_status = tda1004x_read_status, - .read_ber = tda1004x_read_ber, - .read_signal_strength = tda1004x_read_signal_strength, - .read_snr = tda1004x_read_snr, - .read_ucblocks = tda1004x_read_ucblocks, -}; - -struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config, - struct i2c_adapter* i2c) -{ - struct tda1004x_state *state; - int id; - - /* allocate memory for the internal state */ - state = kzalloc(sizeof(struct tda1004x_state), GFP_KERNEL); - if (!state) { - printk(KERN_ERR "Can't allocate memory for tda10046 state\n"); - return NULL; - } - - /* setup the state */ - state->config = config; - state->i2c = i2c; - state->demod_type = TDA1004X_DEMOD_TDA10046; - - /* check if the demod is there */ - id = tda1004x_read_byte(state, TDA1004X_CHIPID); - if (id < 0) { - printk(KERN_ERR "tda10046: chip is not answering. Giving up.\n"); - kfree(state); - return NULL; - } - if (id != 0x46) { - printk(KERN_ERR "Invalid tda1004x ID = 0x%02x. Can't proceed\n", id); - kfree(state); - return NULL; - } - - /* create dvb_frontend */ - memcpy(&state->frontend.ops, &tda10046_ops, sizeof(struct dvb_frontend_ops)); - state->frontend.demodulator_priv = state; - return &state->frontend; -} - -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); - -MODULE_DESCRIPTION("Philips TDA10045H & TDA10046H DVB-T Demodulator"); -MODULE_AUTHOR("Andrew de Quincey & Robert Schlabbach"); -MODULE_LICENSE("GPL"); - -EXPORT_SYMBOL(tda10045_attach); -EXPORT_SYMBOL(tda10046_attach); |
