diff options
author | Antti Palosaari <crope@iki.fi> | 2008-09-15 20:01:52 +0200 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-10-12 13:37:02 +0200 |
commit | 825b96708054ca16d6e4d56a29326d3b2cdd697d (patch) | |
tree | 82868b44a2bddc23c0485546d9f381d21a2d0992 /drivers/media/dvb/frontends/af9013.c | |
parent | V4L/DVB (8970): mt2060: implement I2C-gate control (diff) | |
download | linux-825b96708054ca16d6e4d56a29326d3b2cdd697d.tar.xz linux-825b96708054ca16d6e4d56a29326d3b2cdd697d.zip |
V4L/DVB (8971): initial driver for af9013 demodulator
- initial driver for the Afatech AF9013 demodulator
Signed-off-by: Antti Palosaari <crope@iki.fi>
[mchehab.redhat.com: having a global var called 'debug' is not a good idea. rename it to af9013_debug]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/frontends/af9013.c')
-rw-r--r-- | drivers/media/dvb/frontends/af9013.c | 1691 |
1 files changed, 1691 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/af9013.c b/drivers/media/dvb/frontends/af9013.c new file mode 100644 index 000000000000..9f2129d544c5 --- /dev/null +++ b/drivers/media/dvb/frontends/af9013.c @@ -0,0 +1,1691 @@ +/* + * DVB USB Linux driver for Afatech AF9015 DVB-T USB2.0 receiver + * + * Copyright (C) 2007 Antti Palosaari <crope@iki.fi> + * + * Thanks to Afatech who kindly provided information. + * + * 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/moduleparam.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/string.h> +#include <linux/slab.h> +#include <linux/firmware.h> + +#include "dvb_frontend.h" +#include "af9013_priv.h" +#include "af9013.h" + +int af9013_debug; + +struct af9013_state { + struct i2c_adapter *i2c; + struct dvb_frontend frontend; + + struct af9013_config config; + + u16 signal_strength; + u32 ber; + u32 ucblocks; + u16 snr; + u32 frequency; + unsigned long next_statistics_check; +}; + +static u8 regmask[8] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff }; + +static int af9013_write_regs(struct af9013_state *state, u8 mbox, u16 reg, + u8 *val, u8 len) +{ + u8 buf[3+len]; + struct i2c_msg msg = { + .addr = state->config.demod_address, + .flags = 0, + .len = sizeof(buf), + .buf = buf }; + + buf[0] = reg >> 8; + buf[1] = reg & 0xff; + buf[2] = mbox; + memcpy(&buf[3], val, len); + + if (i2c_transfer(state->i2c, &msg, 1) != 1) { + warn("I2C write failed reg:%04x len:%d", reg, len); + return -EREMOTEIO; + } + return 0; +} + +static int af9013_write_ofdm_regs(struct af9013_state *state, u16 reg, u8 *val, + u8 len) +{ + u8 mbox = (1 << 0)|(1 << 1)|((len - 1) << 2)|(0 << 6)|(0 << 7); + return af9013_write_regs(state, mbox, reg, val, len); +} + +static int af9013_write_ofsm_regs(struct af9013_state *state, u16 reg, u8 *val, + u8 len) +{ + u8 mbox = (1 << 0)|(1 << 1)|((len - 1) << 2)|(1 << 6)|(1 << 7); + return af9013_write_regs(state, mbox, reg, val, len); +} + +/* write single register */ +static int af9013_write_reg(struct af9013_state *state, u16 reg, u8 val) +{ + return af9013_write_ofdm_regs(state, reg, &val, 1); +} + +/* read single register */ +static int af9013_read_reg(struct af9013_state *state, u16 reg, u8 *val) +{ + u8 obuf[3] = { reg >> 8, reg & 0xff, 0 }; + u8 ibuf[1]; + struct i2c_msg msg[2] = { + { + .addr = state->config.demod_address, + .flags = 0, + .len = sizeof(obuf), + .buf = obuf + }, { + .addr = state->config.demod_address, + .flags = I2C_M_RD, + .len = sizeof(ibuf), + .buf = ibuf + } + }; + + if (i2c_transfer(state->i2c, msg, 2) != 2) { + warn("I2C read failed reg:%04x", reg); + return -EREMOTEIO; + } + *val = ibuf[0]; + return 0; +} + +static int af9013_write_reg_bits(struct af9013_state *state, u16 reg, u8 pos, + u8 len, u8 val) +{ + int ret; + u8 tmp, mask; + + ret = af9013_read_reg(state, reg, &tmp); + if (ret) + return ret; + + mask = regmask[len - 1] << pos; + tmp = (tmp & ~mask) | ((val << pos) & mask); + + return af9013_write_reg(state, reg, tmp); +} + +static int af9013_read_reg_bits(struct af9013_state *state, u16 reg, u8 pos, + u8 len, u8 *val) +{ + int ret; + u8 tmp; + + ret = af9013_read_reg(state, reg, &tmp); + if (ret) + return ret; + *val = (tmp >> pos) & regmask[len - 1]; + return 0; +} + +static int af9013_set_gpio(struct af9013_state *state, u8 gpio, u8 gpioval) +{ + int ret; + u8 pos; + u16 addr; + deb_info("%s: gpio:%d gpioval:%02x\n", __func__, gpio, gpioval); + +/* GPIO0 & GPIO1 0xd735 + GPIO2 & GPIO3 0xd736 */ + + switch (gpio) { + case 0: + case 1: + addr = 0xd735; + break; + case 2: + case 3: + addr = 0xd736; + break; + + default: + err("invalid gpio:%d\n", gpio); + ret = -EINVAL; + goto error; + }; + + switch (gpio) { + case 0: + case 2: + pos = 0; + break; + case 1: + case 3: + default: + pos = 4; + break; + }; + + ret = af9013_write_reg_bits(state, addr, pos, 4, gpioval); + +error: + return ret; +} + +static u32 af913_div(u32 a, u32 b, u32 x) +{ + u32 r = 0, c = 0, i; + deb_info("%s: a:%d b:%d x:%d\n", __func__, a, b, x); + + if (a > b) { + c = a / b; + a = a - c * b; + } + + for (i = 0; i < x; i++) { + if (a >= b) { + r += 1; + a -= b; + } + a <<= 1; + r <<= 1; + } + r = (c << (u32)x) + r; + + deb_info("%s: a:%d b:%d x:%d r:%d r:%x\n", __func__, a, b, x, r, r); + return r; +} + +static int af9013_set_coeff(struct af9013_state *state, fe_bandwidth_t bw) +{ + int ret = 0; + u8 i = 0; + u8 buf[24]; + u32 ns_coeff1_2048nu; + u32 ns_coeff1_8191nu; + u32 ns_coeff1_8192nu; + u32 ns_coeff1_8193nu; + u32 ns_coeff2_2k; + u32 ns_coeff2_8k; + + deb_info("%s: adc_clock:%d bw:%d\n", __func__, + state->config.adc_clock, bw); + + switch (state->config.adc_clock) { + case 28800: /* 28.800 MHz */ + switch (bw) { + case BANDWIDTH_6_MHZ: + ns_coeff1_2048nu = 0x01e79e7a; + ns_coeff1_8191nu = 0x0079eb6e; + ns_coeff1_8192nu = 0x0079e79e; + ns_coeff1_8193nu = 0x0079e3cf; + ns_coeff2_2k = 0x00f3cf3d; + ns_coeff2_8k = 0x003cf3cf; + break; + case BANDWIDTH_7_MHZ: + ns_coeff1_2048nu = 0x0238e38e; + ns_coeff1_8191nu = 0x008e3d55; + ns_coeff1_8192nu = 0x008e38e4; + ns_coeff1_8193nu = 0x008e3472; + ns_coeff2_2k = 0x011c71c7; + ns_coeff2_8k = 0x00471c72; + break; + case BANDWIDTH_8_MHZ: + ns_coeff1_2048nu = 0x028a28a3; + ns_coeff1_8191nu = 0x00a28f3d; + ns_coeff1_8192nu = 0x00a28a29; + ns_coeff1_8193nu = 0x00a28514; + ns_coeff2_2k = 0x01451451; + ns_coeff2_8k = 0x00514514; + break; + default: + ret = -EINVAL; + } + break; + case 20480: /* 20.480 MHz */ + switch (bw) { + case BANDWIDTH_6_MHZ: + ns_coeff1_2048nu = 0x02adb6dc; + ns_coeff1_8191nu = 0x00ab7313; + ns_coeff1_8192nu = 0x00ab6db7; + ns_coeff1_8193nu = 0x00ab685c; + ns_coeff2_2k = 0x0156db6e; + ns_coeff2_8k = 0x0055b6dc; + break; + case BANDWIDTH_7_MHZ: + ns_coeff1_2048nu = 0x03200001; + ns_coeff1_8191nu = 0x00c80640; + ns_coeff1_8192nu = 0x00c80000; + ns_coeff1_8193nu = 0x00c7f9c0; + ns_coeff2_2k = 0x01900000; + ns_coeff2_8k = 0x00640000; + break; + case BANDWIDTH_8_MHZ: + ns_coeff1_2048nu = 0x03924926; + ns_coeff1_8191nu = 0x00e4996e; + ns_coeff1_8192nu = 0x00e49249; + ns_coeff1_8193nu = 0x00e48b25; + ns_coeff2_2k = 0x01c92493; + ns_coeff2_8k = 0x00724925; + break; + default: + ret = -EINVAL; + } + break; + case 28000: /* 28.000 MHz */ + switch (bw) { + case BANDWIDTH_6_MHZ: + ns_coeff1_2048nu = 0x01f58d10; + ns_coeff1_8191nu = 0x007d672f; + ns_coeff1_8192nu = 0x007d6344; + ns_coeff1_8193nu = 0x007d5f59; + ns_coeff2_2k = 0x00fac688; + ns_coeff2_8k = 0x003eb1a2; + break; + case BANDWIDTH_7_MHZ: + ns_coeff1_2048nu = 0x02492492; + ns_coeff1_8191nu = 0x00924db7; + ns_coeff1_8192nu = 0x00924925; + ns_coeff1_8193nu = 0x00924492; + ns_coeff2_2k = 0x01249249; + ns_coeff2_8k = 0x00492492; + break; + case BANDWIDTH_8_MHZ: + ns_coeff1_2048nu = 0x029cbc15; + ns_coeff1_8191nu = 0x00a7343f; + ns_coeff1_8192nu = 0x00a72f05; + ns_coeff1_8193nu = 0x00a729cc; + ns_coeff2_2k = 0x014e5e0a; + ns_coeff2_8k = 0x00539783; + break; + default: + ret = -EINVAL; + } + break; + case 25000: /* 25.000 MHz */ + switch (bw) { + case BANDWIDTH_6_MHZ: + ns_coeff1_2048nu = 0x0231bcb5; + ns_coeff1_8191nu = 0x008c7391; + ns_coeff1_8192nu = 0x008c6f2d; + ns_coeff1_8193nu = 0x008c6aca; + ns_coeff2_2k = 0x0118de5b; + ns_coeff2_8k = 0x00463797; + break; + case BANDWIDTH_7_MHZ: + ns_coeff1_2048nu = 0x028f5c29; + ns_coeff1_8191nu = 0x00a3dc29; + ns_coeff1_8192nu = 0x00a3d70a; + ns_coeff1_8193nu = 0x00a3d1ec; + ns_coeff2_2k = 0x0147ae14; + ns_coeff2_8k = 0x0051eb85; + break; + case BANDWIDTH_8_MHZ: + ns_coeff1_2048nu = 0x02ecfb9d; + ns_coeff1_8191nu = 0x00bb44c1; + ns_coeff1_8192nu = 0x00bb3ee7; + ns_coeff1_8193nu = 0x00bb390d; + ns_coeff2_2k = 0x01767dce; + ns_coeff2_8k = 0x005d9f74; + break; + default: + ret = -EINVAL; + } + break; + default: + err("invalid xtal"); + return -EINVAL; + } + if (ret) { + err("invalid bandwidth"); + return ret; + } + + buf[i++] = (u8) ((ns_coeff1_2048nu & 0x03000000) >> 24); + buf[i++] = (u8) ((ns_coeff1_2048nu & 0x00ff0000) >> 16); + buf[i++] = (u8) ((ns_coeff1_2048nu & 0x0000ff00) >> 8); + buf[i++] = (u8) ((ns_coeff1_2048nu & 0x000000ff)); + buf[i++] = (u8) ((ns_coeff2_2k & 0x01c00000) >> 22); + buf[i++] = (u8) ((ns_coeff2_2k & 0x003fc000) >> 14); + buf[i++] = (u8) ((ns_coeff2_2k & 0x00003fc0) >> 6); + buf[i++] = (u8) ((ns_coeff2_2k & 0x0000003f)); + buf[i++] = (u8) ((ns_coeff1_8191nu & 0x03000000) >> 24); + buf[i++] = (u8) ((ns_coeff1_8191nu & 0x00ffc000) >> 16); + buf[i++] = (u8) ((ns_coeff1_8191nu & 0x0000ff00) >> 8); + buf[i++] = (u8) ((ns_coeff1_8191nu & 0x000000ff)); + buf[i++] = (u8) ((ns_coeff1_8192nu & 0x03000000) >> 24); + buf[i++] = (u8) ((ns_coeff1_8192nu & 0x00ffc000) >> 16); + buf[i++] = (u8) ((ns_coeff1_8192nu & 0x0000ff00) >> 8); + buf[i++] = (u8) ((ns_coeff1_8192nu & 0x000000ff)); + buf[i++] = (u8) ((ns_coeff1_8193nu & 0x03000000) >> 24); + buf[i++] = (u8) ((ns_coeff1_8193nu & 0x00ffc000) >> 16); + buf[i++] = (u8) ((ns_coeff1_8193nu & 0x0000ff00) >> 8); + buf[i++] = (u8) ((ns_coeff1_8193nu & 0x000000ff)); + buf[i++] = (u8) ((ns_coeff2_8k & 0x01c00000) >> 22); + buf[i++] = (u8) ((ns_coeff2_8k & 0x003fc000) >> 14); + buf[i++] = (u8) ((ns_coeff2_8k & 0x00003fc0) >> 6); + buf[i++] = (u8) ((ns_coeff2_8k & 0x0000003f)); + + deb_info("%s: coeff:", __func__); + debug_dump(buf, sizeof(buf), deb_info); + + /* program */ + for (i = 0; i < sizeof(buf); i++) { + ret = af9013_write_reg(state, 0xae00 + i, buf[i]); + if (ret) + break; + } + + return ret; +} + +static int af9013_set_adc_ctrl(struct af9013_state *state) +{ + int ret; + u8 buf[3], tmp, i; + u32 adc_cw; + + deb_info("%s: adc_clock:%d\n", __func__, state->config.adc_clock); + + /* adc frequency type */ + switch (state->config.adc_clock) { + case 28800: /* 28.800 MHz */ + tmp = 0; + break; + case 20480: /* 20.480 MHz */ + tmp = 1; + break; + case 28000: /* 28.000 MHz */ + tmp = 2; + break; + case 25000: /* 25.000 MHz */ + tmp = 3; + break; + default: + err("invalid xtal"); + return -EINVAL; + } + + adc_cw = af913_div(state->config.adc_clock*1000, 1000000ul, 19ul); + + buf[0] = (u8) ((adc_cw & 0x000000ff)); + buf[1] = (u8) ((adc_cw & 0x0000ff00) >> 8); + buf[2] = (u8) ((adc_cw & 0x00ff0000) >> 16); + + deb_info("%s: adc_cw:", __func__); + debug_dump(buf, sizeof(buf), deb_info); + + /* program */ + for (i = 0; i < sizeof(buf); i++) { + ret = af9013_write_reg(state, 0xd180 + i, buf[i]); + if (ret) + goto error; + } + ret = af9013_write_reg_bits(state, 0x9bd2, 0, 4, tmp); +error: + return ret; +} + +static int af9013_set_freq_ctrl(struct af9013_state *state, fe_bandwidth_t bw) +{ + int ret; + u16 addr; + u8 buf[3], i, j; + u32 adc_freq, freq_cw; + s8 bfs_spec_inv; + int if_sample_freq; + + for (j = 0; j < 3; j++) { + if (j == 0) { + addr = 0xd140; /* fcw normal */ + bfs_spec_inv = state->config.rf_spec_inv ? -1 : 1; + } else if (j == 1) { + addr = 0x9be7; /* fcw dummy ram */ + bfs_spec_inv = state->config.rf_spec_inv ? -1 : 1; + } else { + addr = 0x9bea; /* fcw inverted */ + bfs_spec_inv = state->config.rf_spec_inv ? 1 : -1; + } + + adc_freq = state->config.adc_clock * 1000; + if_sample_freq = state->config.tuner_if * 1000; + + /* TDA18271 uses different sampling freq for every bw */ + if (state->config.tuner == AF9013_TUNER_TDA18271) { + switch (bw) { + case BANDWIDTH_6_MHZ: + if_sample_freq = 3300000; /* 3.3 MHz */ + break; + case BANDWIDTH_7_MHZ: + if_sample_freq = 3800000; /* 3.8 MHz */ + break; + case BANDWIDTH_8_MHZ: + default: + if_sample_freq = 4300000; /* 4.3 MHz */ + break; + } + } + + while (if_sample_freq > (adc_freq / 2)) + if_sample_freq = if_sample_freq - adc_freq; + + if (if_sample_freq >= 0) + bfs_spec_inv = bfs_spec_inv * (-1); + else + if_sample_freq = if_sample_freq * (-1); + + freq_cw = af913_div(if_sample_freq, adc_freq, 23ul); + + if (bfs_spec_inv == -1) + freq_cw = 0x00800000 - freq_cw; + + buf[0] = (u8) ((freq_cw & 0x000000ff)); + buf[1] = (u8) ((freq_cw & 0x0000ff00) >> 8); + buf[2] = (u8) ((freq_cw & 0x007f0000) >> 16); + + + deb_info("%s: freq_cw:", __func__); + debug_dump(buf, sizeof(buf), deb_info); + + /* program */ + for (i = 0; i < sizeof(buf); i++) { + ret = af9013_write_reg(state, addr++, buf[i]); + if (ret) + goto error; + } + } +error: + return ret; +} + +static int af9013_set_ofdm_params(struct af9013_state *state, + struct dvb_ofdm_parameters *params, u8 *auto_mode) +{ + int ret; + u8 i, buf[3] = {0, 0, 0}; + *auto_mode = 0; /* set if parameters are requested to auto set */ + + switch (params->transmission_mode) { + case TRANSMISSION_MODE_AUTO: + *auto_mode = 1; + case TRANSMISSION_MODE_2K: + break; + case TRANSMISSION_MODE_8K: + buf[0] |= (1 << 0); + break; + default: + return -EINVAL; + } + + switch (params->guard_interval) { + case GUARD_INTERVAL_AUTO: + *auto_mode = 1; + case GUARD_INTERVAL_1_32: + break; + case GUARD_INTERVAL_1_16: + buf[0] |= (1 << 2); + break; + case GUARD_INTERVAL_1_8: + buf[0] |= (2 << 2); + break; + case GUARD_INTERVAL_1_4: + buf[0] |= (3 << 2); + break; + default: + return -EINVAL; + } + + switch (params->hierarchy_information) { + case HIERARCHY_AUTO: + *auto_mode = 1; + case HIERARCHY_NONE: + break; + case HIERARCHY_1: + buf[0] |= (1 << 4); + break; + case HIERARCHY_2: + buf[0] |= (2 << 4); + break; + case HIERARCHY_4: + buf[0] |= (3 << 4); + break; + default: + return -EINVAL; + }; + + switch (params->constellation) { + case QAM_AUTO: + *auto_mode = 1; + case QPSK: + break; + case QAM_16: + buf[1] |= (1 << 6); + break; + case QAM_64: + buf[1] |= (2 << 6); + break; + default: + return -EINVAL; + } + + /* Use HP. How and which case we can switch to LP? */ + buf[1] |= (1 << 4); + + switch (params->code_rate_HP) { + case FEC_AUTO: + *auto_mode = 1; + case FEC_1_2: + break; + case FEC_2_3: + buf[2] |= (1 << 0); + break; + case FEC_3_4: + buf[2] |= (2 << 0); + break; + case FEC_5_6: + buf[2] |= (3 << 0); + break; + case FEC_7_8: + buf[2] |= (4 << 0); + break; + default: + return -EINVAL; + } + + switch (params->code_rate_LP) { + case FEC_AUTO: + /* if HIERARCHY_NONE and FEC_NONE then LP FEC is set to FEC_AUTO + by dvb_frontend.c for compatibility */ + if (params->hierarchy_information != HIERARCHY_NONE) + *auto_mode = 1; + case FEC_1_2: + break; + case FEC_2_3: + buf[2] |= (1 << 3); + break; + case FEC_3_4: + buf[2] |= (2 << 3); + break; + case FEC_5_6: + buf[2] |= (3 << 3); + break; + case FEC_7_8: + buf[2] |= (4 << 3); + break; + case FEC_NONE: + if (params->hierarchy_information == HIERARCHY_AUTO) + break; + default: + return -EINVAL; + } + + switch (params->bandwidth) { + case BANDWIDTH_6_MHZ: + break; + case BANDWIDTH_7_MHZ: + buf[1] |= (1 << 2); + break; + case BANDWIDTH_8_MHZ: + buf[1] |= (2 << 2); + break; + default: + return -EINVAL; + } + + /* program */ + for (i = 0; i < sizeof(buf); i++) { + ret = af9013_write_reg(state, 0xd3c0 + i, buf[i]); + if (ret) + break; + } + + return ret; +} + +static int af9013_reset(struct af9013_state *state, u8 sleep) +{ + int ret; + u8 tmp, i; + deb_info("%s\n", __func__); + + /* enable OFDM reset */ + ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 1); + if (ret) + goto error; + + /* start reset mechanism */ + ret = af9013_write_reg(state, 0xaeff, 1); + if (ret) + goto error; + + /* reset is done when bit 1 is set */ + for (i = 0; i < 150; i++) { + ret = af9013_read_reg_bits(state, 0xd417, 1, 1, &tmp); + if (ret) + goto error; + if (tmp) + break; /* reset done */ + msleep(10); + } + if (!tmp) + return -ETIMEDOUT; + + /* don't clear reset when going to sleep */ + if (!sleep) { + /* clear OFDM reset */ + ret = af9013_write_reg_bits(state, 0xd417, 1, 1, 0); + if (ret) + goto error; + + /* disable OFDM reset */ + ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 0); + } +error: + return ret; +} + +static int af9013_power_ctrl(struct af9013_state *state, u8 onoff) +{ + int ret; + deb_info("%s: onoff:%d\n", __func__, onoff); + + if (onoff) { + /* power on */ + ret = af9013_write_reg_bits(state, 0xd73a, 3, 1, 0); + if (ret) + goto error; + ret = af9013_write_reg_bits(state, 0xd417, 1, 1, 0); + if (ret) + goto error; + ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 0); + } else { + /* power off */ + ret = af9013_reset(state, 1); + if (ret) + goto error; + ret = af9013_write_reg_bits(state, 0xd73a, 3, 1, 1); + } +error: + return ret; +} + +static int af9013_lock_led(struct af9013_state *state, u8 onoff) +{ + deb_info("%s: onoff:%d\n", __func__, onoff); + + return af9013_write_reg_bits(state, 0xd730, 0, 1, onoff); +} + +static int af9013_set_frontend(struct dvb_frontend *fe, + struct dvb_frontend_parameters *params) +{ + struct af9013_state *state = fe->demodulator_priv; + int ret; + u8 auto_mode; /* auto set TPS */ + + deb_info("%s: freq:%d bw:%d\n", __func__, params->frequency, + params->u.ofdm.bandwidth); + + state->frequency = params->frequency; + + /* program CFOE coefficients */ + ret = af9013_set_coeff(state, params->u.ofdm.bandwidth); + if (ret) + goto error; + + /* program frequency control */ + ret = af9013_set_freq_ctrl(state, params->u.ofdm.bandwidth); + if (ret) + goto error; + + /* clear TPS lock flag (inverted flag) */ + ret = af9013_write_reg_bits(state, 0xd330, 3, 1, 1); + if (ret) + goto error; + + /* clear MPEG2 lock flag */ + ret = af9013_write_reg_bits(state, 0xd507, 6, 1, 0); + if (ret) + goto error; + + /* empty channel function */ + ret = af9013_write_reg_bits(state, 0x9bfe, 0, 1, 0); + if (ret) + goto error; + + /* empty DVB-T channel function */ + ret = af9013_write_reg_bits(state, 0x9bc2, 0, 1, 0); + if (ret) + goto error; + + /* program tuner */ + if (fe->ops.tuner_ops.set_params) + fe->ops.tuner_ops.set_params(fe, params); + + /* program TPS and bandwidth, check if auto mode needed */ + ret = af9013_set_ofdm_params(state, ¶ms->u.ofdm, &auto_mode); + if (ret) + goto error; + + if (auto_mode) { + /* clear easy mode flag */ + ret = af9013_write_reg(state, 0xaefd, 0); + deb_info("%s: auto TPS\n", __func__); + } else { + /* set easy mode flag */ + ret = af9013_write_reg(state, 0xaefd, 1); + if (ret) + goto error; + ret = af9013_write_reg(state, 0xaefe, 0); + deb_info("%s: manual TPS\n", __func__); + } + if (ret) + goto error; + + /* everything is set, lets try to receive channel - OFSM GO! */ + ret = af9013_write_reg(state, 0xffff, 0); + if (ret) + goto error; + +error: + return ret; +} + +static int af9013_get_frontend(struct dvb_frontend *fe, + struct dvb_frontend_parameters *p) +{ + struct af9013_state *state = fe->demodulator_priv; + int ret; + u8 i, buf[3]; + deb_info("%s\n", __func__); + + /* read TPS registers */ + for (i = 0; i < 3; i++) { + ret = af9013_read_reg(state, 0xd3c0 + i, &buf[i]); + if (ret) + goto error; + } + + switch ((buf[1] >> 6) & 3) { + case 0: + p->u.ofdm.constellation = QPSK; + break; + case 1: + p->u.ofdm.constellation = QAM_16; + break; + case 2: + p->u.ofdm.constellation = QAM_64; + break; + } + + switch ((buf[0] >> 0) & 3) { + case 0: + p->u.ofdm.transmission_mode = TRANSMISSION_MODE_2K; + break; + case 1: + p->u.ofdm.transmission_mode = TRANSMISSION_MODE_8K; + } + + switch ((buf[0] >> 2) & 3) { + case 0: + p->u.ofdm.guard_interval = GUARD_INTERVAL_1_32; + break; + case 1: + p->u.ofdm.guard_interval = GUARD_INTERVAL_1_16; + break; + case 2: + p->u.ofdm.guard_interval = GUARD_INTERVAL_1_8; + break; + case 3: + p->u.ofdm.guard_interval = GUARD_INTERVAL_1_4; + break; + } + + switch ((buf[0] >> 4) & 7) { + case 0: + p->u.ofdm.hierarchy_information = HIERARCHY_NONE; + break; + case 1: + p->u.ofdm.hierarchy_information = HIERARCHY_1; + break; + case 2: + p->u.ofdm.hierarchy_information = HIERARCHY_2; + break; + case 3: + p->u.ofdm.hierarchy_information = HIERARCHY_4; + break; + } + + switch ((buf[2] >> 0) & 7) { + case 0: + p->u.ofdm.code_rate_HP = FEC_1_2; + break; + case 1: + p->u.ofdm.code_rate_HP = FEC_2_3; + break; + case 2: + p->u.ofdm.code_rate_HP = FEC_3_4; + break; + case 3: + p->u.ofdm.code_rate_HP = FEC_5_6; + break; + case 4: + p->u.ofdm.code_rate_HP = FEC_7_8; + break; + } + + switch ((buf[2] >> 3) & 7) { + case 0: + p->u.ofdm.code_rate_LP = FEC_1_2; + break; + case 1: + p->u.ofdm.code_rate_LP = FEC_2_3; + break; + case 2: + p->u.ofdm.code_rate_LP = FEC_3_4; + break; + case 3: + p->u.ofdm.code_rate_LP = FEC_5_6; + break; + case 4: + p->u.ofdm.code_rate_LP = FEC_7_8; + break; + } + + switch ((buf[1] >> 2) & 3) { + case 0: + p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; + break; + case 1: + p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; + break; + case 2: + p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; + break; + } + + p->inversion = INVERSION_AUTO; + p->frequency = state->frequency; + +error: + return ret; +} + +static int af9013_update_ber_unc(struct dvb_frontend *fe) +{ + struct af9013_state *state = fe->demodulator_priv; + int ret; + u8 buf[3], i; + u32 error_bit_count = 0; + u32 total_bit_count = 0; + u32 abort_packet_count = 0; + u64 numerator, denominator; + + state->ber = 0; + + /* check if error bit count is ready */ + ret = af9013_read_reg_bits(state, 0xd391, 4, 1, &buf[0]); + if (ret) + goto error; + if (!buf[0]) + goto exit; + + /* get RSD packet abort count */ + for (i = 0; i < 2; i++) { + ret = af9013_read_reg(state, 0xd38a + i, &buf[i]); + if (ret) + goto error; + } + abort_packet_count = (buf[1] << 8) + buf[0]; + + /* get error bit count */ + for (i = 0; i < 3; i++) { + ret = af9013_read_reg(state, 0xd387 + i, &buf[i]); + if (ret) + goto error; + } + error_bit_count = (buf[2] << 16) + (buf[1] << 8) + buf[0]; + error_bit_count = error_bit_count - abort_packet_count * 8 * 8; + + /* get used RSD counting period (10000 RSD packets used) */ + for (i = 0; i < 2; i++) { + ret = af9013_read_reg(state, 0xd385 + i, &buf[i]); + if (ret) + goto error; + } + total_bit_count = (buf[1] << 8) + buf[0]; + total_bit_count = total_bit_count - abort_packet_count; + total_bit_count = total_bit_count * 204 * 8; + + if (total_bit_count) { + numerator = error_bit_count * 1000000000; + denominator = total_bit_count; + state->ber = numerator / denominator; + } + + state->ucblocks += abort_packet_count; + + deb_info("%s: err bits:%d total bits:%d abort count:%d\n", __func__, + error_bit_count, total_bit_count, abort_packet_count); + + /* set BER counting range */ + ret = af9013_write_reg(state, 0xd385, 10000 & 0xff); + if (ret) + goto error; + ret = af9013_write_reg(state, 0xd386, 10000 >> 8); + if (ret) + goto error; + /* reset and start BER counter */ + ret = af9013_write_reg_bits(state, 0xd391, 4, 1, 1); + if (ret) + goto error; + +exit: +error: + return ret; +} + +static int af9013_update_snr(struct dvb_frontend *fe) +{ + struct af9013_state *state = fe->demodulator_priv; + int ret; + u8 buf[3], i, len; + u32 quant = 0; + struct snr_table *snr_table; + + /* check if quantizer ready (for snr) */ + ret = af9013_read_reg_bits(state, 0xd2e1, 3, 1, &buf[0]); + if (ret) + goto error; + if (buf[0]) { + /* quantizer ready - read it */ + for (i = 0; i < 3; i++) { + ret = af9013_read_reg(state, 0xd2e3 + i, &buf[i]); + if (ret) + goto error; + } + quant = (buf[2] << 16) + (buf[1] << 8) + buf[0]; + + /* read current constellation */ + ret = af9013_read_reg(state, 0xd3c1, &buf[0]); + if (ret) + goto error; + + switch ((buf[0] >> 6) & 3) { + case 0: + len = ARRAY_SIZE(qpsk_snr_table); + snr_table = qpsk_snr_table; + break; + case 1: + len = ARRAY_SIZE(qam16_snr_table); + snr_table = qam16_snr_table; + break; + case 2: + len = ARRAY_SIZE(qam64_snr_table); + snr_table = qam64_snr_table; + break; + default: + len = 0; + break; + } + + if (len) { + for (i = 0; i < len; i++) { + if (quant < snr_table[i].val) { + state->snr = snr_table[i].snr * 10; + break; + } + } + } + + /* set quantizer super frame count */ + ret = af9013_write_reg(state, 0xd2e2, 1); + if (ret) + goto error; + + /* check quantizer availability */ + for (i = 0; i < 10; i++) { + msleep(10); + ret = af9013_read_reg_bits(state, 0xd2e6, 0, 1, + &buf[0]); + if (ret) + goto error; + if (!buf[0]) + break; + } + + /* reset quantizer */ + ret = af9013_write_reg_bits(state, 0xd2e1, 3, 1, 1); + if (ret) + goto error; + } + +error: + return ret; +} + +static int af9013_update_signal_strength(struct dvb_frontend *fe) +{ + struct af9013_state *state = fe->demodulator_priv; + int ret; + u8 tmp0; + u8 rf_gain, rf_50, rf_80, if_gain, if_50, if_80; + int signal_strength; + + deb_info("%s\n", __func__); + + state->signal_strength = 0; + + ret = af9013_read_reg_bits(state, 0x9bee, 0, 1, &tmp0); + if (ret) + goto error; + if (tmp0) { + ret = af9013_read_reg(state, 0x9bbd, &rf_50); + if (ret) + goto error; + ret = af9013_read_reg(state, 0x9bd0, &rf_80); + if (ret) + goto error; + ret = af9013_read_reg(state, 0x9be2, &if_50); + if (ret) + goto error; + ret = af9013_read_reg(state, 0x9be4, &if_80); + if (ret) + goto error; + ret = af9013_read_reg(state, 0xd07c, &rf_gain); + if (ret) + goto error; + ret = af9013_read_reg(state, 0xd07d, &if_gain); + if (ret) + goto error; + signal_strength = (0xffff / (9 * (rf_50 + if_50) - \ + 11 * (rf_80 + if_80))) * (10 * (rf_gain + if_gain) - \ + 11 * (rf_80 + if_80)); + if (signal_strength < 0) + signal_strength = 0; + else if (signal_strength > 0xffff) + signal_strength = 0xffff; + + state->signal_strength = signal_strength; + } + +error: + return ret; +} + +static int af9013_update_statistics(struct dvb_frontend *fe) +{ + struct af9013_state *state = fe->demodulator_priv; + int ret; + + if (time_before(jiffies, state->next_statistics_check)) + return 0; + + /* set minimum statistic update interval */ + state->next_statistics_check = jiffies + msecs_to_jiffies(1200); + + ret = af9013_update_signal_strength(fe); + if (ret) + goto error; + ret = af9013_update_snr(fe); + if (ret) + goto error; + ret = af9013_update_ber_unc(fe); + if (ret) + goto error; + +error: + return ret; +} + +static int af9013_get_tune_settings(struct dvb_frontend *fe, + struct dvb_frontend_tune_settings *fesettings) +{ + fesettings->min_delay_ms = 800; + fesettings->step_size = 0; + fesettings->max_drift = 0; + + return 0; +} + +static int af9013_read_status(struct dvb_frontend *fe, fe_status_t *status) +{ + struct af9013_state *state = fe->demodulator_priv; + int ret = 0; + u8 tmp; + *status = 0; + + /* TPS lock */ + ret = af9013_read_reg_bits(state, 0xd330, 3, 1, &tmp); + if (ret) + goto error; + if (tmp) + *status |= FE_HAS_VITERBI | FE_HAS_CARRIER | FE_HAS_SIGNAL; + + /* MPEG2 lock */ + ret = af9013_read_reg_bits(state, 0xd507, 6, 1, &tmp); + if (ret) + goto error; + if (tmp) + *status |= FE_HAS_SYNC | FE_HAS_LOCK; + + if (!*status & FE_HAS_SIGNAL) { + /* AGC lock */ + ret = af9013_read_reg_bits(state, 0xd1a0, 6, 1, &tmp); + if (ret) + goto error; + if (tmp) + *status |= FE_HAS_SIGNAL; + } + + if (!*status & FE_HAS_CARRIER) { + /* CFO lock */ + ret = af9013_read_reg_bits(state, 0xd333, 7, 1, &tmp); + if (ret) + goto error; + if (tmp) + *status |= FE_HAS_CARRIER; + } + + if (!*status & FE_HAS_CARRIER) { + /* SFOE lock */ + ret = af9013_read_reg_bits(state, 0xd334, 6, 1, &tmp); + if (ret) + goto error; + if (tmp) + *status |= FE_HAS_CARRIER; + } + + ret = af9013_update_statistics(fe); + +error: + return ret; +} + + +static int af9013_read_ber(struct dvb_frontend *fe, u32 *ber) +{ + struct af9013_state *state = fe->demodulator_priv; + int ret; + ret = af9013_update_statistics(fe); + *ber = state->ber; + return ret; +} + +static int af9013_read_signal_strength(struct dvb_frontend *fe, u16 *strength) +{ + struct af9013_state *state = fe->demodulator_priv; + int ret; + ret = af9013_update_statistics(fe); + *strength = state->signal_strength; + return ret; +} + +static int af9013_read_snr(struct dvb_frontend *fe, u16 *snr) +{ + struct af9013_state *state = fe->demodulator_priv; + int ret; + ret = af9013_update_statistics(fe); + *snr = state->snr; + return ret; +} + +static int af9013_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) +{ + struct af9013_state *state = fe->demodulator_priv; + int ret; + ret = af9013_update_statistics(fe); + *ucblocks = state->ucblocks; + return ret; +} + +static int af9013_sleep(struct dvb_frontend *fe) +{ + struct af9013_state *state = fe->demodulator_priv; + int ret; + deb_info("%s\n", __func__); + + ret = af9013_lock_led(state, 0); + if (ret) + goto error; + + ret = af9013_power_ctrl(state, 0); +error: + return ret; +} + +static int af9013_init(struct dvb_frontend *fe) +{ + struct af9013_state *state = fe->demodulator_priv; + int ret, i, len; + u8 tmp0, tmp1; + struct regdesc *init; + deb_info("%s\n", __func__); + + /* reset OFDM */ + ret = af9013_reset(state, 0); + if (ret) + goto error; + + /* power on */ + ret = af9013_power_ctrl(state, 1); + if (ret) + goto error; + + /* enable ADC */ + ret = af9013_write_reg(state, 0xd73a, 0xa4); + if (ret) + goto error; + + /* write API version to firmware */ + for (i = 0; i < sizeof(state->config.api_version); i++) { + ret = af9013_write_reg(state, 0x9bf2 + i, + state->config.api_version[i]); + if (ret) + goto error; + } + + /* program ADC control */ + ret = af9013_set_adc_ctrl(state); + if (ret) + goto error; + + /* set I2C master clock */ + ret = af9013_write_reg(state, 0xd416, 0x14); + if (ret) + goto error; + + /* set 16 embx */ + ret = af9013_write_reg_bits(state, 0xd700, 1, 1, 1); + if (ret) + goto error; + + /* set no trigger */ + ret = af9013_write_reg_bits(state, 0xd700, 2, 1, 0); + if (ret) + goto error; + + /* set read-update bit for constellation */ + ret = af9013_write_reg_bits(state, 0xd371, 1, 1, 1); + if (ret) + goto error; + + /* enable FEC monitor */ + ret = af9013_write_reg_bits(state, 0xd392, 1, 1, 1); + if (ret) + goto error; + + /* load OFSM settings */ + deb_info("%s: load ofsm settings\n", __func__); + len = ARRAY_SIZE(ofsm_init); + init = ofsm_init; + for (i = 0; i < len; i++) { + ret = af9013_write_reg_bits(state, init[i].addr, init[i].pos, + init[i].len, init[i].val); + if (ret) + goto error; + } + + /* load tuner specific settings */ + deb_info("%s: load tuner specific settings\n", __func__); + switch (state->config.tuner) { + case AF9013_TUNER_MXL5003D: + len = ARRAY_SIZE(tuner_init_mxl5003d); + init = tuner_init_mxl5003d; + break; + case AF9013_TUNER_MXL5005D: + case AF9013_TUNER_MXL5005R: + len = ARRAY_SIZE(tuner_init_mxl5005); + init = tuner_init_mxl5005; + break; + case AF9013_TUNER_ENV77H11D5: + len = ARRAY_SIZE(tuner_init_env77h11d5); + init = tuner_init_env77h11d5; + break; + case AF9013_TUNER_MT2060: + len = ARRAY_SIZE(tuner_init_mt2060); + init = tuner_init_mt2060; + break; + case AF9013_TUNER_MC44S803: + len = ARRAY_SIZE(tuner_init_mc44s803); + init = tuner_init_mc44s803; + break; + case AF9013_TUNER_QT1010: + case AF9013_TUNER_QT1010A: + len = ARRAY_SIZE(tuner_init_qt1010); + init = tuner_init_qt1010; + break; + case AF9013_TUNER_MT2060_2: + len = ARRAY_SIZE(tuner_init_mt2060_2); + init = tuner_init_mt2060_2; + break; + case AF9013_TUNER_TDA18271: + len = ARRAY_SIZE(tuner_init_tda18271); + init = tuner_init_tda18271; + break; + case AF9013_TUNER_UNKNOWN: + default: + len = ARRAY_SIZE(tuner_init_unknown); + init = tuner_init_unknown; + break; + } + + for (i = 0; i < len; i++) { + ret = af9013_write_reg_bits(state, init[i].addr, init[i].pos, + init[i].len, init[i].val); + if (ret) + goto error; + } + + /* set TS mode */ + deb_info("%s: setting ts mode\n", __func__); + tmp0 = 0; /* parallel mode */ + tmp1 = 0; /* serial mode */ + switch (state->config.output_mode) { + case AF9013_OUTPUT_MODE_PARALLEL: + tmp0 = 1; + break; + case AF9013_OUTPUT_MODE_SERIAL: + tmp1 = 1; + break; + case AF9013_OUTPUT_MODE_USB: + /* usb mode for AF9015 */ + default: + break; + } + ret = af9013_write_reg_bits(state, 0xd500, 1, 1, tmp0); /* parallel */ + if (ret) + goto error; + ret = af9013_write_reg_bits(state, 0xd500, 2, 1, tmp1); /* serial */ + if (ret) + goto error; + + /* enable lock led */ + ret = af9013_lock_led(state, 1); + if (ret) + goto error; + +error: + return ret; +} + +static struct dvb_frontend_ops af9013_ops; + +static int af9013_download_firmware(struct af9013_state *state) +{ + int i, len, packets, remainder, ret; + const struct firmware *fw; + u16 addr = 0x5100; /* firmware start address */ + u16 checksum = 0; + u8 val; + u8 fw_params[4]; + u8 *data; + u8 *fw_file = AF9013_DEFAULT_FIRMWARE; + + msleep(100); + /* check whether firmware is already running */ + ret = af9013_read_reg(state, 0x98be, &val); + if (ret) + goto error; + else + deb_info("%s: firmware status:%02x\n", __func__, val); + + if (val == 0x0c) /* fw is running, no need for download */ + goto exit; + + info("found a '%s' in cold state, will try to load a firmware", + af9013_ops.info.name); + + /* request the firmware, this will block and timeout */ + ret = request_firmware(&fw, fw_file, &state->i2c->dev); + if (ret) { + err("did not find the firmware file. (%s) " + "Please see linux/Documentation/dvb/ for more details" \ + " on firmware-problems. (%d)", + fw_file, ret); + goto error; + } + + info("downloading firmware from file '%s'", fw_file); + + /* calc checksum */ + for (i = 0; i < fw->size; i++) + checksum += fw->data[i]; + + fw_params[0] = checksum >> 8; + fw_params[1] = checksum & 0xff; + fw_params[2] = fw->size >> 8; + fw_params[3] = fw->size & 0xff; + + /* write fw checksum & size */ + ret = af9013_write_ofsm_regs(state, 0x50fc, + fw_params, sizeof(fw_params)); + if (ret) + goto error_release; + + #define FW_PACKET_MAX_DATA 16 + + packets = fw->size / FW_PACKET_MAX_DATA; + remainder = fw->size % FW_PACKET_MAX_DATA; + len = FW_PACKET_MAX_DATA; + for (i = 0; i <= packets; i++) { + if (i == packets) /* set size of the last packet */ + len = remainder; + + data = (fw->data + i * FW_PACKET_MAX_DATA); + ret = af9013_write_ofsm_regs(state, addr, data, len); + addr += FW_PACKET_MAX_DATA; + + if (ret) { + err("firmware download failed at %d with %d", i, ret); + goto error_release; + } + } + + #undef FW_PACKET_MAX_DATA + + /* request boot firmware */ + ret = af9013_write_reg(state, 0xe205, 1); + if (ret) + goto error_release; + + for (i = 0; i < 15; i++) { + msleep(100); + + /* check firmware status */ + ret = af9013_read_reg(state, 0x98be, &val); + if (ret) + goto error_release; + + deb_info("%s: firmware status:%02x\n", __func__, val); + + if (val == 0x0c || val == 0x04) /* success or fail */ + break; + } + + if (val == 0x04) { + err("firmware did not run"); + ret = -1; + } else if (val != 0x0c) { + err("firmware boot timeout"); + ret = -1; + } + +error_release: + release_firmware(fw); +error: +exit: + if (!ret) + info("found a '%s' in warm state.", af9013_ops.info.name); + return ret; +} + +static int af9013_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) +{ + int ret; + struct af9013_state *state = fe->demodulator_priv; + deb_info("%s: enable:%d\n", __func__, enable); + + if (state->config.output_mode == AF9013_OUTPUT_MODE_USB) + ret = af9013_write_reg_bits(state, 0xd417, 3, 1, enable); + else + ret = af9013_write_reg_bits(state, 0xd607, 2, 1, enable); + + return ret; +} + +static void af9013_release(struct dvb_frontend *fe) +{ + struct af9013_state *state = fe->demodulator_priv; + kfree(state); +} + +static struct dvb_frontend_ops af9013_ops; + +struct dvb_frontend *af9013_attach(const struct af9013_config *config, + struct i2c_adapter *i2c) +{ + int ret; + struct af9013_state *state = NULL; + u8 buf[3], i; + + /* allocate memory for the internal state */ + state = kzalloc(sizeof(struct af9013_state), GFP_KERNEL); + if (state == NULL) + goto error; + + /* setup the state */ + state->i2c = i2c; + memcpy(&state->config, config, sizeof(struct af9013_config)); + + /* chip version */ + ret = af9013_read_reg_bits(state, 0xd733, 4, 4, &buf[2]); + if (ret) + goto error; + + /* ROM version */ + for (i = 0; i < 2; i++) { + ret = af9013_read_reg(state, 0x116b + i, &buf[i]); + if (ret) + goto error; + } + deb_info("%s: chip version:%d ROM version:%d.%d\n", __func__, + buf[2], buf[0], buf[1]); + + /* download firmware */ + if (state->config.output_mode != AF9013_OUTPUT_MODE_USB) { + ret = af9013_download_firmware(state); + if (ret) + goto error; + } + + /* firmware version */ + for (i = 0; i < 3; i++) { + ret = af9013_read_reg(state, 0x5103 + i, &buf[i]); + if (ret) + goto error; + } + info("firmware version:%d.%d.%d", buf[0], buf[1], buf[2]); + + /* settings for mp2if */ + if (state->config.output_mode == AF9013_OUTPUT_MODE_USB) { + /* AF9015 split PSB to 1.5k + 0.5k */ + ret = af9013_write_reg_bits(state, 0xd50b, 2, 1, 1); + } else { + /* AF9013 change the output bit to data7 */ + ret = af9013_write_reg_bits(state, 0xd500, 3, 1, 1); + if (ret) + goto error; + /* AF9013 set mpeg to full speed */ + ret = af9013_write_reg_bits(state, 0xd502, 4, 1, 1); + } + if (ret) + goto error; + ret = af9013_write_reg_bits(state, 0xd520, 4, 1, 1); + if (ret) + goto error; + + /* set GPIOs */ + for (i = 0; i < sizeof(state->config.gpio); i++) { + ret = af9013_set_gpio(state, i, state->config.gpio[i]); + if (ret) + goto error; + } + + /* create dvb_frontend */ + memcpy(&state->frontend.ops, &af9013_ops, + sizeof(struct dvb_frontend_ops)); + state->frontend.demodulator_priv = state; + + return &state->frontend; +error: + kfree(state); + return NULL; +} +EXPORT_SYMBOL(af9013_attach); + +static struct dvb_frontend_ops af9013_ops = { + .info = { + .name = "Afatech AF9013 DVB-T", + .type = FE_OFDM, + .frequency_min = 174000000, + .frequency_max = 862000000, + .frequency_stepsize = 250000, + .frequency_tolerance = 0, + .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 | + FE_CAN_HIERARCHY_AUTO | + FE_CAN_RECOVER | + FE_CAN_MUTE_TS + }, + + .release = af9013_release, + .init = af9013_init, + .sleep = af9013_sleep, + .i2c_gate_ctrl = af9013_i2c_gate_ctrl, + + .set_frontend = af9013_set_frontend, + .get_frontend = af9013_get_frontend, + + .get_tune_settings = af9013_get_tune_settings, + + .read_status = af9013_read_status, + .read_ber = af9013_read_ber, + .read_signal_strength = af9013_read_signal_strength, + .read_snr = af9013_read_snr, + .read_ucblocks = af9013_read_ucblocks, +}; + +module_param_named(debug, af9013_debug, int, 0644); +MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); + +MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); +MODULE_DESCRIPTION("Afatech AF9013 DVB-T demodulator driver"); +MODULE_LICENSE("GPL"); |