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path: root/drivers/media/dvb/frontends/af9013.c
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Diffstat (limited to 'drivers/media/dvb/frontends/af9013.c')
-rw-r--r--drivers/media/dvb/frontends/af9013.c1685
1 files changed, 1685 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/af9013.c b/drivers/media/dvb/frontends/af9013.c
new file mode 100644
index 0000000..21c1060
--- /dev/null
+++ b/drivers/media/dvb/frontends/af9013.c
@@ -0,0 +1,1685 @@
+/*
+ * 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, &params->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;
+
+ 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)
+ state->ber = error_bit_count * 1000000000 / total_bit_count;
+
+ 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 = (u8 *)(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;
+ }
+ }
+
+ /* 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");
generated by cgit v0.10.2 at 2024-11-14 18:28:00 (GMT)