--- /dev/null
+/*
+ Conexant cx24117/cx24132 - Dual DVBS/S2 Satellite demod/tuner driver
+
+ Copyright (C) 2013 Luis Alves <ljalvs@gmail.com>
+ July, 6th 2013
+ First release based on cx24116 driver by:
+ Steven Toth and Georg Acher, Darron Broad, Igor Liplianin
+ Cards currently supported:
+ TBS6980 - Dual DVBS/S2 PCIe card
+ TBS6981 - Dual DVBS/S2 PCIe card
+
+ 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/slab.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/firmware.h>
+
+#include "dvb_frontend.h"
+#include "cx24117.h"
+
+
+#define CX24117_DEFAULT_FIRMWARE "dvb-fe-cx24117.fw"
+#define CX24117_SEARCH_RANGE_KHZ 5000
+
+/* known registers */
+#define CX24117_REG_COMMAND (0x00) /* command buffer */
+#define CX24117_REG_EXECUTE (0x1f) /* execute command */
+
+#define CX24117_REG_FREQ3_0 (0x34) /* frequency */
+#define CX24117_REG_FREQ2_0 (0x35)
+#define CX24117_REG_FREQ1_0 (0x36)
+#define CX24117_REG_STATE0 (0x39)
+#define CX24117_REG_SSTATUS0 (0x3a) /* demod0 signal high / status */
+#define CX24117_REG_SIGNAL0 (0x3b)
+#define CX24117_REG_FREQ5_0 (0x3c) /* +-freq */
+#define CX24117_REG_FREQ6_0 (0x3d)
+#define CX24117_REG_SRATE2_0 (0x3e) /* +- 1000 * srate */
+#define CX24117_REG_SRATE1_0 (0x3f)
+#define CX24117_REG_QUALITY2_0 (0x40)
+#define CX24117_REG_QUALITY1_0 (0x41)
+
+#define CX24117_REG_BER4_0 (0x47)
+#define CX24117_REG_BER3_0 (0x48)
+#define CX24117_REG_BER2_0 (0x49)
+#define CX24117_REG_BER1_0 (0x4a)
+#define CX24117_REG_DVBS_UCB2_0 (0x4b)
+#define CX24117_REG_DVBS_UCB1_0 (0x4c)
+#define CX24117_REG_DVBS2_UCB2_0 (0x50)
+#define CX24117_REG_DVBS2_UCB1_0 (0x51)
+#define CX24117_REG_QSTATUS0 (0x93)
+#define CX24117_REG_CLKDIV0 (0xe6)
+#define CX24117_REG_RATEDIV0 (0xf0)
+
+
+#define CX24117_REG_FREQ3_1 (0x55) /* frequency */
+#define CX24117_REG_FREQ2_1 (0x56)
+#define CX24117_REG_FREQ1_1 (0x57)
+#define CX24117_REG_STATE1 (0x5a)
+#define CX24117_REG_SSTATUS1 (0x5b) /* demod1 signal high / status */
+#define CX24117_REG_SIGNAL1 (0x5c)
+#define CX24117_REG_FREQ5_1 (0x5d) /* +- freq */
+#define CX24117_REG_FREQ4_1 (0x5e)
+#define CX24117_REG_SRATE2_1 (0x5f)
+#define CX24117_REG_SRATE1_1 (0x60)
+#define CX24117_REG_QUALITY2_1 (0x61)
+#define CX24117_REG_QUALITY1_1 (0x62)
+#define CX24117_REG_BER4_1 (0x68)
+#define CX24117_REG_BER3_1 (0x69)
+#define CX24117_REG_BER2_1 (0x6a)
+#define CX24117_REG_BER1_1 (0x6b)
+#define CX24117_REG_DVBS_UCB2_1 (0x6c)
+#define CX24117_REG_DVBS_UCB1_1 (0x6d)
+#define CX24117_REG_DVBS2_UCB2_1 (0x71)
+#define CX24117_REG_DVBS2_UCB1_1 (0x72)
+#define CX24117_REG_QSTATUS1 (0x9f)
+#define CX24117_REG_CLKDIV1 (0xe7)
+#define CX24117_REG_RATEDIV1 (0xf1)
+
+
+/* arg buffer size */
+#define CX24117_ARGLEN (0x1e)
+
+/* rolloff */
+#define CX24117_ROLLOFF_020 (0x00)
+#define CX24117_ROLLOFF_025 (0x01)
+#define CX24117_ROLLOFF_035 (0x02)
+
+/* pilot bit */
+#define CX24117_PILOT_OFF (0x00)
+#define CX24117_PILOT_ON (0x40)
+#define CX24117_PILOT_AUTO (0x80)
+
+/* signal status */
+#define CX24117_HAS_SIGNAL (0x01)
+#define CX24117_HAS_CARRIER (0x02)
+#define CX24117_HAS_VITERBI (0x04)
+#define CX24117_HAS_SYNCLOCK (0x08)
+#define CX24117_STATUS_MASK (0x0f)
+#define CX24117_SIGNAL_MASK (0xc0)
+
+
+/* arg offset for DiSEqC */
+#define CX24117_DISEQC_DEMOD (1)
+#define CX24117_DISEQC_BURST (2)
+#define CX24117_DISEQC_ARG3_2 (3) /* unknown value=2 */
+#define CX24117_DISEQC_ARG4_0 (4) /* unknown value=0 */
+#define CX24117_DISEQC_ARG5_0 (5) /* unknown value=0 */
+#define CX24117_DISEQC_MSGLEN (6)
+#define CX24117_DISEQC_MSGOFS (7)
+
+/* DiSEqC burst */
+#define CX24117_DISEQC_MINI_A (0)
+#define CX24117_DISEQC_MINI_B (1)
+
+
+#define CX24117_PNE (0) /* 0 disabled / 2 enabled */
+#define CX24117_OCC (1) /* 0 disabled / 1 enabled */
+
+
+enum cmds {
+ CMD_SET_VCO = 0x10,
+ CMD_TUNEREQUEST = 0x11,
+ CMD_MPEGCONFIG = 0x13,
+ CMD_TUNERINIT = 0x14,
+ CMD_LNBSEND = 0x21, /* Formerly CMD_SEND_DISEQC */
+ CMD_LNBDCLEVEL = 0x22,
+ CMD_SET_TONE = 0x23,
+ CMD_UPDFWVERS = 0x35,
+ CMD_TUNERSLEEP = 0x36,
+};
+
+/* The Demod/Tuner can't easily provide these, we cache them */
+struct cx24117_tuning {
+ u32 frequency;
+ u32 symbol_rate;
+ fe_spectral_inversion_t inversion;
+ fe_code_rate_t fec;
+
+ fe_delivery_system_t delsys;
+ fe_modulation_t modulation;
+ fe_pilot_t pilot;
+ fe_rolloff_t rolloff;
+
+ /* Demod values */
+ u8 fec_val;
+ u8 fec_mask;
+ u8 inversion_val;
+ u8 pilot_val;
+ u8 rolloff_val;
+};
+
+/* Basic commands that are sent to the firmware */
+struct cx24117_cmd {
+ u8 len;
+ u8 args[CX24117_ARGLEN];
+};
+
+/* common to both fe's */
+struct cx24117_priv {
+ u8 demod_address;
+ struct i2c_adapter *i2c;
+ u8 skip_fw_load;
+
+ struct mutex fe_lock;
+ atomic_t fe_nr;
+};
+
+/* one per each fe */
+struct cx24117_state {
+ struct cx24117_priv *priv;
+ struct dvb_frontend frontend;
+
+ struct cx24117_tuning dcur;
+ struct cx24117_tuning dnxt;
+ struct cx24117_cmd dsec_cmd;
+
+ int demod;
+};
+
+/* modfec (modulation and FEC) lookup table */
+/* Check cx24116.c for a detailed description of each field */
+static struct cx24117_modfec {
+ fe_delivery_system_t delivery_system;
+ fe_modulation_t modulation;
+ fe_code_rate_t fec;
+ u8 mask; /* In DVBS mode this is used to autodetect */
+ u8 val; /* Passed to the firmware to indicate mode selection */
+} cx24117_modfec_modes[] = {
+ /* QPSK. For unknown rates we set hardware to auto detect 0xfe 0x30 */
+
+ /*mod fec mask val */
+ { SYS_DVBS, QPSK, FEC_NONE, 0xfe, 0x30 },
+ { SYS_DVBS, QPSK, FEC_1_2, 0x02, 0x2e }, /* 00000010 00101110 */
+ { SYS_DVBS, QPSK, FEC_2_3, 0x04, 0x2f }, /* 00000100 00101111 */
+ { SYS_DVBS, QPSK, FEC_3_4, 0x08, 0x30 }, /* 00001000 00110000 */
+ { SYS_DVBS, QPSK, FEC_4_5, 0xfe, 0x30 }, /* 000?0000 ? */
+ { SYS_DVBS, QPSK, FEC_5_6, 0x20, 0x31 }, /* 00100000 00110001 */
+ { SYS_DVBS, QPSK, FEC_6_7, 0xfe, 0x30 }, /* 0?000000 ? */
+ { SYS_DVBS, QPSK, FEC_7_8, 0x80, 0x32 }, /* 10000000 00110010 */
+ { SYS_DVBS, QPSK, FEC_8_9, 0xfe, 0x30 }, /* 0000000? ? */
+ { SYS_DVBS, QPSK, FEC_AUTO, 0xfe, 0x30 },
+ /* NBC-QPSK */
+ { SYS_DVBS2, QPSK, FEC_NONE, 0x00, 0x00 },
+ { SYS_DVBS2, QPSK, FEC_1_2, 0x00, 0x04 },
+ { SYS_DVBS2, QPSK, FEC_3_5, 0x00, 0x05 },
+ { SYS_DVBS2, QPSK, FEC_2_3, 0x00, 0x06 },
+ { SYS_DVBS2, QPSK, FEC_3_4, 0x00, 0x07 },
+ { SYS_DVBS2, QPSK, FEC_4_5, 0x00, 0x08 },
+ { SYS_DVBS2, QPSK, FEC_5_6, 0x00, 0x09 },
+ { SYS_DVBS2, QPSK, FEC_8_9, 0x00, 0x0a },
+ { SYS_DVBS2, QPSK, FEC_9_10, 0x00, 0x0b },
+ { SYS_DVBS2, QPSK, FEC_AUTO, 0x00, 0x00 },
+ /* 8PSK */
+ { SYS_DVBS2, PSK_8, FEC_NONE, 0x00, 0x00 },
+ { SYS_DVBS2, PSK_8, FEC_3_5, 0x00, 0x0c },
+ { SYS_DVBS2, PSK_8, FEC_2_3, 0x00, 0x0d },
+ { SYS_DVBS2, PSK_8, FEC_3_4, 0x00, 0x0e },
+ { SYS_DVBS2, PSK_8, FEC_5_6, 0x00, 0x0f },
+ { SYS_DVBS2, PSK_8, FEC_8_9, 0x00, 0x10 },
+ { SYS_DVBS2, PSK_8, FEC_9_10, 0x00, 0x11 },
+ { SYS_DVBS2, PSK_8, FEC_AUTO, 0x00, 0x00 },
+ /*
+ * 'val' can be found in the FECSTATUS register when tuning.
+ * FECSTATUS will give the actual FEC in use if tuning was successful.
+ */
+};
+
+
+static int cx24117_writereg(struct cx24117_state *state, u8 reg, u8 data)
+{
+ u8 buf[] = { reg, data };
+ struct i2c_msg msg = { .addr = state->priv->demod_address,
+ .flags = 0, .buf = buf, .len = 2 };
+ int ret;
+
+ dev_dbg(&state->priv->i2c->dev,
+ "%s() demod%d i2c wr @0x%02x=0x%02x\n",
+ __func__, state->demod, reg, data);
+
+ ret = i2c_transfer(state->priv->i2c, &msg, 1);
+ if (ret < 0) {
+ dev_warn(&state->priv->i2c->dev,
+ "%s: demod%d i2c wr err(%i) @0x%02x=0x%02x\n",
+ KBUILD_MODNAME, state->demod, ret, reg, data);
+ return ret;
+ }
+ return 0;
+}
+
+static int cx24117_writecmd(struct cx24117_state *state,
+ struct cx24117_cmd *cmd)
+{
+ struct i2c_msg msg;
+ u8 buf[CX24117_ARGLEN+1];
+ int ret;
+
+ dev_dbg(&state->priv->i2c->dev,
+ "%s() demod%d i2c wr cmd len=%d\n",
+ __func__, state->demod, cmd->len);
+
+ buf[0] = CX24117_REG_COMMAND;
+ memcpy(&buf[1], cmd->args, cmd->len);
+
+ msg.addr = state->priv->demod_address;
+ msg.flags = 0;
+ msg.len = cmd->len+1;
+ msg.buf = buf;
+ ret = i2c_transfer(state->priv->i2c, &msg, 1);
+ if (ret < 0) {
+ dev_warn(&state->priv->i2c->dev,
+ "%s: demod%d i2c wr cmd err(%i) len=%d\n",
+ KBUILD_MODNAME, state->demod, ret, cmd->len);
+ return ret;
+ }
+ return 0;
+}
+
+static int cx24117_readreg(struct cx24117_state *state, u8 reg)
+{
+ int ret;
+ u8 recv = 0;
+ struct i2c_msg msg[] = {
+ { .addr = state->priv->demod_address, .flags = 0,
+ .buf = ®, .len = 1 },
+ { .addr = state->priv->demod_address, .flags = I2C_M_RD,
+ .buf = &recv, .len = 1 }
+ };
+
+ ret = i2c_transfer(state->priv->i2c, msg, 2);
+ if (ret < 0) {
+ dev_warn(&state->priv->i2c->dev,
+ "%s: demod%d i2c rd err(%d) @0x%x\n",
+ KBUILD_MODNAME, state->demod, ret, reg);
+ return ret;
+ }
+
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d i2c rd @0x%02x=0x%02x\n",
+ __func__, state->demod, reg, recv);
+
+ return recv;
+}
+
+static int cx24117_readregN(struct cx24117_state *state,
+ u8 reg, u8 *buf, int len)
+{
+ int ret;
+ struct i2c_msg msg[] = {
+ { .addr = state->priv->demod_address, .flags = 0,
+ .buf = ®, .len = 1 },
+ { .addr = state->priv->demod_address, .flags = I2C_M_RD,
+ .buf = buf, .len = len }
+ };
+
+ ret = i2c_transfer(state->priv->i2c, msg, 2);
+ if (ret < 0) {
+ dev_warn(&state->priv->i2c->dev,
+ "%s: demod%d i2c rd err(%d) @0x%x\n",
+ KBUILD_MODNAME, state->demod, ret, reg);
+ return ret;
+ }
+ return 0;
+}
+
+static int cx24117_set_inversion(struct cx24117_state *state,
+ fe_spectral_inversion_t inversion)
+{
+ dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n",
+ __func__, inversion, state->demod);
+
+ switch (inversion) {
+ case INVERSION_OFF:
+ state->dnxt.inversion_val = 0x00;
+ break;
+ case INVERSION_ON:
+ state->dnxt.inversion_val = 0x04;
+ break;
+ case INVERSION_AUTO:
+ state->dnxt.inversion_val = 0x0C;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ state->dnxt.inversion = inversion;
+
+ return 0;
+}
+
+static int cx24117_lookup_fecmod(struct cx24117_state *state,
+ fe_delivery_system_t d, fe_modulation_t m, fe_code_rate_t f)
+{
+ int i, ret = -EINVAL;
+
+ dev_dbg(&state->priv->i2c->dev,
+ "%s(demod(0x%02x,0x%02x) demod%d\n",
+ __func__, m, f, state->demod);
+
+ for (i = 0; i < ARRAY_SIZE(cx24117_modfec_modes); i++) {
+ if ((d == cx24117_modfec_modes[i].delivery_system) &&
+ (m == cx24117_modfec_modes[i].modulation) &&
+ (f == cx24117_modfec_modes[i].fec)) {
+ ret = i;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+static int cx24117_set_fec(struct cx24117_state *state,
+ fe_delivery_system_t delsys, fe_modulation_t mod, fe_code_rate_t fec)
+{
+ int ret;
+
+ dev_dbg(&state->priv->i2c->dev,
+ "%s(0x%02x,0x%02x) demod%d\n",
+ __func__, mod, fec, state->demod);
+
+ ret = cx24117_lookup_fecmod(state, delsys, mod, fec);
+ if (ret < 0)
+ return ret;
+
+ state->dnxt.fec = fec;
+ state->dnxt.fec_val = cx24117_modfec_modes[ret].val;
+ state->dnxt.fec_mask = cx24117_modfec_modes[ret].mask;
+ dev_dbg(&state->priv->i2c->dev,
+ "%s() demod%d mask/val = 0x%02x/0x%02x\n", __func__,
+ state->demod, state->dnxt.fec_mask, state->dnxt.fec_val);
+
+ return 0;
+}
+
+static int cx24117_set_symbolrate(struct cx24117_state *state, u32 rate)
+{
+ dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n",
+ __func__, rate, state->demod);
+
+ state->dnxt.symbol_rate = rate;
+
+ dev_dbg(&state->priv->i2c->dev,
+ "%s() demod%d symbol_rate = %d\n",
+ __func__, state->demod, rate);
+
+ return 0;
+}
+
+static int cx24117_load_firmware(struct dvb_frontend *fe,
+ const struct firmware *fw);
+
+static int cx24117_firmware_ondemand(struct dvb_frontend *fe)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ const struct firmware *fw;
+ int ret = 0;
+
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d skip_fw_load=%d\n",
+ __func__, state->demod, state->priv->skip_fw_load);
+
+ if (state->priv->skip_fw_load)
+ return 0;
+
+ /* check if firmware if already running */
+ if (cx24117_readreg(state, 0xeb) != 0xa) {
+ /* Load firmware */
+ /* request the firmware, this will block until loaded */
+ dev_dbg(&state->priv->i2c->dev,
+ "%s: Waiting for firmware upload (%s)...\n",
+ __func__, CX24117_DEFAULT_FIRMWARE);
+ ret = request_firmware(&fw, CX24117_DEFAULT_FIRMWARE,
+ state->priv->i2c->dev.parent);
+ dev_dbg(&state->priv->i2c->dev,
+ "%s: Waiting for firmware upload(2)...\n", __func__);
+ if (ret) {
+ dev_err(&state->priv->i2c->dev,
+ "%s: No firmware uploaded "
+ "(timeout or file not found?)\n", __func__);
+ return ret;
+ }
+
+ /* Make sure we don't recurse back through here
+ * during loading */
+ state->priv->skip_fw_load = 1;
+
+ ret = cx24117_load_firmware(fe, fw);
+ if (ret)
+ dev_err(&state->priv->i2c->dev,
+ "%s: Writing firmware failed\n", __func__);
+ release_firmware(fw);
+
+ dev_info(&state->priv->i2c->dev,
+ "%s: Firmware upload %s\n", __func__,
+ ret == 0 ? "complete" : "failed");
+
+ /* Ensure firmware is always loaded if required */
+ state->priv->skip_fw_load = 0;
+ }
+
+ return ret;
+}
+
+/* Take a basic firmware command structure, format it
+ * and forward it for processing
+ */
+static int cx24117_cmd_execute_nolock(struct dvb_frontend *fe,
+ struct cx24117_cmd *cmd)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ int i, ret;
+
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n",
+ __func__, state->demod);
+
+ /* Load the firmware if required */
+ ret = cx24117_firmware_ondemand(fe);
+ if (ret != 0)
+ return ret;
+
+ /* Write the command */
+ cx24117_writecmd(state, cmd);
+
+ /* Start execution and wait for cmd to terminate */
+ cx24117_writereg(state, CX24117_REG_EXECUTE, 0x01);
+ i = 0;
+ while (cx24117_readreg(state, CX24117_REG_EXECUTE)) {
+ msleep(20);
+ if (i++ > 40) {
+ /* Avoid looping forever if the firmware does
+ not respond */
+ dev_warn(&state->priv->i2c->dev,
+ "%s() Firmware not responding\n", __func__);
+ return -EIO;
+ }
+ }
+ return 0;
+}
+
+static int cx24117_cmd_execute(struct dvb_frontend *fe, struct cx24117_cmd *cmd)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ int ret;
+
+ mutex_lock(&state->priv->fe_lock);
+ ret = cx24117_cmd_execute_nolock(fe, cmd);
+ mutex_unlock(&state->priv->fe_lock);
+
+ return ret;
+}
+
+static int cx24117_load_firmware(struct dvb_frontend *fe,
+ const struct firmware *fw)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ struct cx24117_cmd cmd;
+ int i, ret;
+ unsigned char vers[4];
+
+ struct i2c_msg msg;
+ u8 *buf;
+
+ dev_dbg(&state->priv->i2c->dev,
+ "%s() demod%d FW is %zu bytes (%02x %02x .. %02x %02x)\n",
+ __func__, state->demod, fw->size, fw->data[0], fw->data[1],
+ fw->data[fw->size-2], fw->data[fw->size-1]);
+
+ cx24117_writereg(state, 0xea, 0x00);
+ cx24117_writereg(state, 0xea, 0x01);
+ cx24117_writereg(state, 0xea, 0x00);
+
+ cx24117_writereg(state, 0xce, 0x92);
+
+ cx24117_writereg(state, 0xfb, 0x00);
+ cx24117_writereg(state, 0xfc, 0x00);
+
+ cx24117_writereg(state, 0xc3, 0x04);
+ cx24117_writereg(state, 0xc4, 0x04);
+
+ cx24117_writereg(state, 0xce, 0x00);
+ cx24117_writereg(state, 0xcf, 0x00);
+
+ cx24117_writereg(state, 0xea, 0x00);
+ cx24117_writereg(state, 0xeb, 0x0c);
+ cx24117_writereg(state, 0xec, 0x06);
+ cx24117_writereg(state, 0xed, 0x05);
+ cx24117_writereg(state, 0xee, 0x03);
+ cx24117_writereg(state, 0xef, 0x05);
+
+ cx24117_writereg(state, 0xf3, 0x03);
+ cx24117_writereg(state, 0xf4, 0x44);
+
+ cx24117_writereg(state, CX24117_REG_RATEDIV0, 0x04);
+ cx24117_writereg(state, CX24117_REG_CLKDIV0, 0x02);
+
+ cx24117_writereg(state, CX24117_REG_RATEDIV1, 0x04);
+ cx24117_writereg(state, CX24117_REG_CLKDIV1, 0x02);
+
+ cx24117_writereg(state, 0xf2, 0x04);
+ cx24117_writereg(state, 0xe8, 0x02);
+ cx24117_writereg(state, 0xea, 0x01);
+ cx24117_writereg(state, 0xc8, 0x00);
+ cx24117_writereg(state, 0xc9, 0x00);
+ cx24117_writereg(state, 0xca, 0x00);
+ cx24117_writereg(state, 0xcb, 0x00);
+ cx24117_writereg(state, 0xcc, 0x00);
+ cx24117_writereg(state, 0xcd, 0x00);
+ cx24117_writereg(state, 0xe4, 0x03);
+ cx24117_writereg(state, 0xeb, 0x0a);
+
+ cx24117_writereg(state, 0xfb, 0x00);
+ cx24117_writereg(state, 0xe0, 0x76);
+ cx24117_writereg(state, 0xf7, 0x81);
+ cx24117_writereg(state, 0xf8, 0x00);
+ cx24117_writereg(state, 0xf9, 0x00);
+
+ buf = kmalloc(fw->size + 1, GFP_KERNEL);
+ if (buf == NULL) {
+ state->priv->skip_fw_load = 0;
+ return -ENOMEM;
+ }
+
+ /* fw upload reg */
+ buf[0] = 0xfa;
+ memcpy(&buf[1], fw->data, fw->size);
+
+ /* prepare i2c message to send */
+ msg.addr = state->priv->demod_address;
+ msg.flags = 0;
+ msg.len = fw->size + 1;
+ msg.buf = buf;
+
+ /* send fw */
+ ret = i2c_transfer(state->priv->i2c, &msg, 1);
+ if (ret < 0)
+ return ret;
+
+ kfree(buf);
+
+ cx24117_writereg(state, 0xf7, 0x0c);
+ cx24117_writereg(state, 0xe0, 0x00);
+
+ /* CMD 1B */
+ cmd.args[0] = 0x1b;
+ cmd.args[1] = 0x00;
+ cmd.args[2] = 0x01;
+ cmd.args[3] = 0x00;
+ cmd.len = 4;
+ ret = cx24117_cmd_execute_nolock(fe, &cmd);
+ if (ret != 0)
+ goto error;
+
+ /* CMD 10 */
+ cmd.args[0] = CMD_SET_VCO;
+ cmd.args[1] = 0x06;
+ cmd.args[2] = 0x2b;
+ cmd.args[3] = 0xd8;
+ cmd.args[4] = 0xa5;
+ cmd.args[5] = 0xee;
+ cmd.args[6] = 0x03;
+ cmd.args[7] = 0x9d;
+ cmd.args[8] = 0xfc;
+ cmd.args[9] = 0x06;
+ cmd.args[10] = 0x02;
+ cmd.args[11] = 0x9d;
+ cmd.args[12] = 0xfc;
+ cmd.len = 13;
+ ret = cx24117_cmd_execute_nolock(fe, &cmd);
+ if (ret != 0)
+ goto error;
+
+ /* CMD 15 */
+ cmd.args[0] = 0x15;
+ cmd.args[1] = 0x00;
+ cmd.args[2] = 0x01;
+ cmd.args[3] = 0x00;
+ cmd.args[4] = 0x00;
+ cmd.args[5] = 0x01;
+ cmd.args[6] = 0x01;
+ cmd.args[7] = 0x01;
+ cmd.args[8] = 0x00;
+ cmd.args[9] = 0x05;
+ cmd.args[10] = 0x02;
+ cmd.args[11] = 0x02;
+ cmd.args[12] = 0x00;
+ cmd.len = 13;
+ ret = cx24117_cmd_execute_nolock(fe, &cmd);
+ if (ret != 0)
+ goto error;
+
+ /* CMD 13 */
+ cmd.args[0] = CMD_MPEGCONFIG;
+ cmd.args[1] = 0x00;
+ cmd.args[2] = 0x00;
+ cmd.args[3] = 0x00;
+ cmd.args[4] = 0x01;
+ cmd.args[5] = 0x00;
+ cmd.len = 6;
+ ret = cx24117_cmd_execute_nolock(fe, &cmd);
+ if (ret != 0)
+ goto error;
+
+ /* CMD 14 */
+ for (i = 0; i < 2; i++) {
+ cmd.args[0] = CMD_TUNERINIT;
+ cmd.args[1] = (u8) i;
+ cmd.args[2] = 0x00;
+ cmd.args[3] = 0x05;
+ cmd.args[4] = 0x00;
+ cmd.args[5] = 0x00;
+ cmd.args[6] = 0x55;
+ cmd.args[7] = 0x00;
+ cmd.len = 8;
+ ret = cx24117_cmd_execute_nolock(fe, &cmd);
+ if (ret != 0)
+ goto error;
+ }
+
+ cx24117_writereg(state, 0xce, 0xc0);
+ cx24117_writereg(state, 0xcf, 0x00);
+ cx24117_writereg(state, 0xe5, 0x04);
+
+ /* Firmware CMD 35: Get firmware version */
+ cmd.args[0] = CMD_UPDFWVERS;
+ cmd.len = 2;
+ for (i = 0; i < 4; i++) {
+ cmd.args[1] = i;
+ ret = cx24117_cmd_execute_nolock(fe, &cmd);
+ if (ret != 0)
+ goto error;
+ vers[i] = cx24117_readreg(state, 0x33);
+ }
+ dev_info(&state->priv->i2c->dev,
+ "%s: FW version %i.%i.%i.%i\n", __func__,
+ vers[0], vers[1], vers[2], vers[3]);
+ return 0;
+error:
+ state->priv->skip_fw_load = 0;
+ dev_err(&state->priv->i2c->dev, "%s() Error running FW.\n", __func__);
+ return ret;
+}
+
+static int cx24117_read_status(struct dvb_frontend *fe, fe_status_t *status)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ int lock;
+
+ lock = cx24117_readreg(state,
+ (state->demod == 0) ? CX24117_REG_SSTATUS0 :
+ CX24117_REG_SSTATUS1) &
+ CX24117_STATUS_MASK;
+
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d status = 0x%02x\n",
+ __func__, state->demod, lock);
+
+ *status = 0;
+
+ if (lock & CX24117_HAS_SIGNAL)
+ *status |= FE_HAS_SIGNAL;
+ if (lock & CX24117_HAS_CARRIER)
+ *status |= FE_HAS_CARRIER;
+ if (lock & CX24117_HAS_VITERBI)
+ *status |= FE_HAS_VITERBI;
+ if (lock & CX24117_HAS_SYNCLOCK)
+ *status |= FE_HAS_SYNC | FE_HAS_LOCK;
+
+ return 0;
+}
+
+static int cx24117_read_ber(struct dvb_frontend *fe, u32 *ber)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ int ret;
+ u8 buf[4];
+ u8 base_reg = (state->demod == 0) ?
+ CX24117_REG_BER4_0 :
+ CX24117_REG_BER4_1;
+
+ ret = cx24117_readregN(state, base_reg, buf, 4);
+ if (ret != 0)
+ return ret;
+
+ *ber = (buf[0] << 24) | (buf[1] << 16) |
+ (buf[1] << 8) | buf[0];
+
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d ber=0x%04x\n",
+ __func__, state->demod, *ber);
+
+ return 0;
+}
+
+static int cx24117_read_signal_strength(struct dvb_frontend *fe,
+ u16 *signal_strength)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ struct cx24117_cmd cmd;
+ int ret;
+ u16 sig_reading;
+ u8 buf[2];
+ u8 reg = (state->demod == 0) ?
+ CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1;
+
+ /* Firmware CMD 1A */
+ cmd.args[0] = 0x1a;
+ cmd.args[1] = (u8) state->demod;
+ cmd.len = 2;
+ ret = cx24117_cmd_execute(fe, &cmd);
+ if (ret != 0)
+ return ret;
+
+ ret = cx24117_readregN(state, reg, buf, 2);
+ if (ret != 0)
+ return ret;
+ sig_reading = ((buf[0] & CX24117_SIGNAL_MASK) << 2) | buf[1];
+
+ *signal_strength = -100 * sig_reading + 94324;
+
+ dev_dbg(&state->priv->i2c->dev,
+ "%s() demod%d raw / cooked = 0x%04x / 0x%04x\n",
+ __func__, state->demod, sig_reading, *signal_strength);
+
+ return 0;
+}
+
+static int cx24117_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ int ret;
+ u8 buf[2];
+ u8 reg = (state->demod == 0) ?
+ CX24117_REG_QUALITY2_0 : CX24117_REG_QUALITY2_1;
+
+ ret = cx24117_readregN(state, reg, buf, 2);
+ if (ret != 0)
+ return ret;
+
+ *snr = (buf[0] << 8) | buf[1];
+
+ dev_dbg(&state->priv->i2c->dev,
+ "%s() demod%d snr = 0x%04x\n",
+ __func__, state->demod, *snr);
+
+ return ret;
+}
+
+static int cx24117_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ fe_delivery_system_t delsys = fe->dtv_property_cache.delivery_system;
+ int ret;
+ u8 buf[2];
+ u8 reg = (state->demod == 0) ?
+ CX24117_REG_DVBS_UCB2_0 :
+ CX24117_REG_DVBS_UCB2_1;
+
+ switch (delsys) {
+ case SYS_DVBS:
+ break;
+ case SYS_DVBS2:
+ reg += (CX24117_REG_DVBS2_UCB2_0 - CX24117_REG_DVBS_UCB2_0);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ret = cx24117_readregN(state, reg, buf, 2);
+ if (ret != 0)
+ return ret;
+ *ucblocks = (buf[0] << 8) | buf[1];
+
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d ucb=0x%04x\n",
+ __func__, state->demod, *ucblocks);
+
+ return 0;
+}
+
+/* Overwrite the current tuning params, we are about to tune */
+static void cx24117_clone_params(struct dvb_frontend *fe)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ state->dcur = state->dnxt;
+}
+
+/* Wait for LNB */
+static int cx24117_wait_for_lnb(struct dvb_frontend *fe)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ int i;
+ u8 val, reg = (state->demod == 0) ? CX24117_REG_QSTATUS0 :
+ CX24117_REG_QSTATUS1;
+
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d qstatus = 0x%02x\n",
+ __func__, state->demod, cx24117_readreg(state, reg));
+
+ /* Wait for up to 300 ms */
+ for (i = 0; i < 10; i++) {
+ val = cx24117_readreg(state, reg) & 0x01;
+ if (val != 0)
+ return 0;
+ msleep(30);
+ }
+
+ dev_warn(&state->priv->i2c->dev, "%s: demod%d LNB not ready\n",
+ KBUILD_MODNAME, state->demod);
+
+ return -ETIMEDOUT; /* -EBUSY ? */
+}
+
+static int cx24117_set_voltage(struct dvb_frontend *fe,
+ fe_sec_voltage_t voltage)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ struct cx24117_cmd cmd;
+ int ret;
+ u8 reg = (state->demod == 0) ? 0x10 : 0x20;
+
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d %s\n",
+ __func__, state->demod,
+ voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" :
+ voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" :
+ "SEC_VOLTAGE_OFF");
+
+ /* CMD 32 */
+ cmd.args[0] = 0x32;
+ cmd.args[1] = reg;
+ cmd.args[2] = reg;
+ cmd.len = 3;
+ ret = cx24117_cmd_execute(fe, &cmd);
+ if (ret)
+ return ret;
+
+ if ((voltage == SEC_VOLTAGE_13) ||
+ (voltage == SEC_VOLTAGE_18)) {
+ /* CMD 33 */
+ cmd.args[0] = 0x33;
+ cmd.args[1] = reg;
+ cmd.args[2] = reg;
+ cmd.len = 3;
+ ret = cx24117_cmd_execute(fe, &cmd);
+ if (ret != 0)
+ return ret;
+
+ ret = cx24117_wait_for_lnb(fe);
+ if (ret != 0)
+ return ret;
+
+ /* Wait for voltage/min repeat delay */
+ msleep(100);
+
+ /* CMD 22 - CMD_LNBDCLEVEL */
+ cmd.args[0] = CMD_LNBDCLEVEL;
+ cmd.args[1] = state->demod ? 0 : 1;
+ cmd.args[2] = (voltage == SEC_VOLTAGE_18 ? 0x01 : 0x00);
+ cmd.len = 3;
+
+ /* Min delay time before DiSEqC send */
+ msleep(20);
+ } else {
+ cmd.args[0] = 0x33;
+ cmd.args[1] = 0x00;
+ cmd.args[2] = reg;
+ cmd.len = 3;
+ }
+
+ return cx24117_cmd_execute(fe, &cmd);
+}
+
+static int cx24117_set_tone(struct dvb_frontend *fe,
+ fe_sec_tone_mode_t tone)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ struct cx24117_cmd cmd;
+ int ret;
+
+ dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n",
+ __func__, state->demod, tone);
+ if ((tone != SEC_TONE_ON) && (tone != SEC_TONE_OFF)) {
+ dev_warn(&state->priv->i2c->dev, "%s: demod%d invalid tone=%d\n",
+ KBUILD_MODNAME, state->demod, tone);
+ return -EINVAL;
+ }
+
+ /* Wait for LNB ready */
+ ret = cx24117_wait_for_lnb(fe);
+ if (ret != 0)
+ return ret;
+
+ /* Min delay time after DiSEqC send */
+ msleep(20);
+
+ /* Set the tone */
+ /* CMD 23 - CMD_SET_TONE */
+ cmd.args[0] = CMD_SET_TONE;
+ cmd.args[1] = (state->demod ? 0 : 1);
+ cmd.args[2] = 0x00;
+ cmd.args[3] = 0x00;
+ cmd.len = 5;
+ switch (tone) {
+ case SEC_TONE_ON:
+ cmd.args[4] = 0x01;
+ break;
+ case SEC_TONE_OFF:
+ cmd.args[4] = 0x00;
+ break;
+ }
+
+ msleep(20);
+
+ return cx24117_cmd_execute(fe, &cmd);
+}
+
+/* Initialise DiSEqC */
+static int cx24117_diseqc_init(struct dvb_frontend *fe)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+
+ /* Prepare a DiSEqC command */
+ state->dsec_cmd.args[0] = CMD_LNBSEND;
+
+ /* demod */
+ state->dsec_cmd.args[CX24117_DISEQC_DEMOD] = state->demod ? 0 : 1;
+
+ /* DiSEqC burst */
+ state->dsec_cmd.args[CX24117_DISEQC_BURST] = CX24117_DISEQC_MINI_A;
+
+ /* Unknown */
+ state->dsec_cmd.args[CX24117_DISEQC_ARG3_2] = 0x02;
+ state->dsec_cmd.args[CX24117_DISEQC_ARG4_0] = 0x00;
+
+ /* Continuation flag? */
+ state->dsec_cmd.args[CX24117_DISEQC_ARG5_0] = 0x00;
+
+ /* DiSEqC message length */
+ state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] = 0x00;
+
+ /* Command length */
+ state->dsec_cmd.len = 7;
+
+ return 0;
+}
+
+/* Send DiSEqC message */
+static int cx24117_send_diseqc_msg(struct dvb_frontend *fe,
+ struct dvb_diseqc_master_cmd *d)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ int i, ret;
+
+ /* Dump DiSEqC message */
+ dev_dbg(&state->priv->i2c->dev, "%s: demod %d (",
+ __func__, state->demod);
+ for (i = 0; i < d->msg_len; i++)
+ dev_dbg(&state->priv->i2c->dev, "0x%02x ", d->msg[i]);
+ dev_dbg(&state->priv->i2c->dev, ")\n");
+
+ /* Validate length */
+ if (d->msg_len > 15)
+ return -EINVAL;
+
+ /* DiSEqC message */
+ for (i = 0; i < d->msg_len; i++)
+ state->dsec_cmd.args[CX24117_DISEQC_MSGOFS + i] = d->msg[i];
+
+ /* DiSEqC message length */
+ state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] = d->msg_len;
+
+ /* Command length */
+ state->dsec_cmd.len = CX24117_DISEQC_MSGOFS +
+ state->dsec_cmd.args[CX24117_DISEQC_MSGLEN];
+
+ /*
+ * Message is sent with derived else cached burst
+ *
+ * WRITE PORT GROUP COMMAND 38
+ *
+ * 0/A/A: E0 10 38 F0..F3
+ * 1/B/B: E0 10 38 F4..F7
+ * 2/C/A: E0 10 38 F8..FB
+ * 3/D/B: E0 10 38 FC..FF
+ *
+ * databyte[3]= 8421:8421
+ * ABCD:WXYZ
+ * CLR :SET
+ *
+ * WX= PORT SELECT 0..3 (X=TONEBURST)
+ * Y = VOLTAGE (0=13V, 1=18V)
+ * Z = BAND (0=LOW, 1=HIGH(22K))
+ */
+ if (d->msg_len >= 4 && d->msg[2] == 0x38)
+ state->dsec_cmd.args[CX24117_DISEQC_BURST] =
+ ((d->msg[3] & 4) >> 2);
+
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d burst=%d\n",
+ __func__, state->demod,
+ state->dsec_cmd.args[CX24117_DISEQC_BURST]);
+
+ /* Wait for LNB ready */
+ ret = cx24117_wait_for_lnb(fe);
+ if (ret != 0)
+ return ret;
+
+ /* Wait for voltage/min repeat delay */
+ msleep(100);
+
+ /* Command */
+ ret = cx24117_cmd_execute(fe, &state->dsec_cmd);
+ if (ret != 0)
+ return ret;
+ /*
+ * Wait for send
+ *
+ * Eutelsat spec:
+ * >15ms delay + (XXX determine if FW does this, see set_tone)
+ * 13.5ms per byte +
+ * >15ms delay +
+ * 12.5ms burst +
+ * >15ms delay (XXX determine if FW does this, see set_tone)
+ */
+ msleep((state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] << 4) + 60);
+
+ return 0;
+}
+
+/* Send DiSEqC burst */
+static int cx24117_diseqc_send_burst(struct dvb_frontend *fe,
+ fe_sec_mini_cmd_t burst)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+
+ dev_dbg(&state->priv->i2c->dev, "%s(%d) demod=%d\n",
+ __func__, burst, state->demod);
+
+ /* DiSEqC burst */
+ if (burst == SEC_MINI_A)
+ state->dsec_cmd.args[CX24117_DISEQC_BURST] =
+ CX24117_DISEQC_MINI_A;
+ else if (burst == SEC_MINI_B)
+ state->dsec_cmd.args[CX24117_DISEQC_BURST] =
+ CX24117_DISEQC_MINI_B;
+ else
+ return -EINVAL;
+
+ return 0;
+}
+
+static void cx24117_release(struct dvb_frontend *fe)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ dev_dbg(&state->priv->i2c->dev, "%s demod%d\n",
+ __func__, state->demod);
+ if (!atomic_dec_and_test(&state->priv->fe_nr))
+ kfree(state->priv);
+ kfree(state);
+}
+
+static struct dvb_frontend_ops cx24117_ops;
+
+struct dvb_frontend *cx24117_attach(const struct cx24117_config *config,
+ struct i2c_adapter *i2c, struct dvb_frontend *fe)
+{
+ struct cx24117_state *state = NULL;
+ struct cx24117_priv *priv = NULL;
+ int demod = 0;
+
+ /* first frontend attaching */
+ /* allocate shared priv struct */
+ if (fe == NULL) {
+ priv = kzalloc(sizeof(struct cx24117_priv), GFP_KERNEL);
+ if (priv == NULL)
+ goto error1;
+ priv->i2c = i2c;
+ priv->demod_address = config->demod_address;
+ mutex_init(&priv->fe_lock);
+ } else {
+ demod = 1;
+ priv = ((struct cx24117_state *) fe->demodulator_priv)->priv;
+ }
+
+ /* allocate memory for the internal state */
+ state = kzalloc(sizeof(struct cx24117_state), GFP_KERNEL);
+ if (state == NULL)
+ goto error2;
+
+ state->demod = demod;
+ state->priv = priv;
+
+ /* test i2c bus for ack */
+ if (demod == 0) {
+ if (cx24117_readreg(state, 0x00) < 0)
+ goto error3;
+ }
+
+ /* nr of frontends using the module */
+ atomic_inc(&priv->fe_nr);
+
+ dev_info(&state->priv->i2c->dev,
+ "%s: Attaching frontend %d\n",
+ KBUILD_MODNAME, demod);
+
+ /* create dvb_frontend */
+ memcpy(&state->frontend.ops, &cx24117_ops,
+ sizeof(struct dvb_frontend_ops));
+ state->frontend.demodulator_priv = state;
+ return &state->frontend;
+
+error3:
+ kfree(state);
+error2:
+ kfree(priv);
+error1:
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(cx24117_attach);
+
+/*
+ * Initialise or wake up device
+ *
+ * Power config will reset and load initial firmware if required
+ */
+static int cx24117_initfe(struct dvb_frontend *fe)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ struct cx24117_cmd cmd;
+ int ret;
+
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n",
+ __func__, state->demod);
+
+ mutex_lock(&state->priv->fe_lock);
+
+ /* Firmware CMD 36: Power config */
+ cmd.args[0] = CMD_TUNERSLEEP;
+ cmd.args[1] = (state->demod ? 1 : 0);
+ cmd.args[2] = 0;
+ cmd.len = 3;
+ ret = cx24117_cmd_execute_nolock(fe, &cmd);
+ if (ret != 0)
+ return ret;
+
+ ret = cx24117_diseqc_init(fe);
+ if (ret != 0)
+ return ret;
+
+ /* CMD 3C */
+ cmd.args[0] = 0x3c;
+ cmd.args[1] = (state->demod ? 1 : 0);
+ cmd.args[2] = 0x10;
+ cmd.args[3] = 0x10;
+ cmd.len = 4;
+ ret = cx24117_cmd_execute_nolock(fe, &cmd);
+ if (ret != 0)
+ return ret;
+
+ /* CMD 34 */
+ cmd.args[0] = 0x34;
+ cmd.args[1] = (state->demod ? 1 : 0);
+ cmd.args[2] = CX24117_OCC;
+ cmd.len = 3;
+ ret = cx24117_cmd_execute_nolock(fe, &cmd);
+ if (ret != 0)
+ return ret;
+
+ mutex_unlock(&state->priv->fe_lock);
+
+ return ret;
+}
+
+/*
+ * Put device to sleep
+ */
+static int cx24117_sleep(struct dvb_frontend *fe)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ struct cx24117_cmd cmd;
+
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n",
+ __func__, state->demod);
+
+ /* Firmware CMD 36: Power config */
+ cmd.args[0] = CMD_TUNERSLEEP;
+ cmd.args[1] = (state->demod ? 1 : 0);
+ cmd.args[2] = 1;
+ cmd.len = 3;
+ return cx24117_cmd_execute(fe, &cmd);
+}
+
+/* dvb-core told us to tune, the tv property cache will be complete,
+ * it's safe for is to pull values and use them for tuning purposes.
+ */
+static int cx24117_set_frontend(struct dvb_frontend *fe)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ struct cx24117_cmd cmd;
+ fe_status_t tunerstat;
+ int i, status, ret, retune = 1;
+ u8 reg_clkdiv, reg_ratediv;
+
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n",
+ __func__, state->demod);
+
+ switch (c->delivery_system) {
+ case SYS_DVBS:
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d DVB-S\n",
+ __func__, state->demod);
+
+ /* Only QPSK is supported for DVB-S */
+ if (c->modulation != QPSK) {
+ dev_dbg(&state->priv->i2c->dev,
+ "%s() demod%d unsupported modulation (%d)\n",
+ __func__, state->demod, c->modulation);
+ return -EINVAL;
+ }
+
+ /* Pilot doesn't exist in DVB-S, turn bit off */
+ state->dnxt.pilot_val = CX24117_PILOT_OFF;
+
+ /* DVB-S only supports 0.35 */
+ state->dnxt.rolloff_val = CX24117_ROLLOFF_035;
+ break;
+
+ case SYS_DVBS2:
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d DVB-S2\n",
+ __func__, state->demod);
+
+ /*
+ * NBC 8PSK/QPSK with DVB-S is supported for DVB-S2,
+ * but not hardware auto detection
+ */
+ if (c->modulation != PSK_8 && c->modulation != QPSK) {
+ dev_dbg(&state->priv->i2c->dev,
+ "%s() demod%d unsupported modulation (%d)\n",
+ __func__, state->demod, c->modulation);
+ return -EOPNOTSUPP;
+ }
+
+ switch (c->pilot) {
+ case PILOT_AUTO:
+ state->dnxt.pilot_val = CX24117_PILOT_AUTO;
+ break;
+ case PILOT_OFF:
+ state->dnxt.pilot_val = CX24117_PILOT_OFF;
+ break;
+ case PILOT_ON:
+ state->dnxt.pilot_val = CX24117_PILOT_ON;
+ break;
+ default:
+ dev_dbg(&state->priv->i2c->dev,
+ "%s() demod%d unsupported pilot mode (%d)\n",
+ __func__, state->demod, c->pilot);
+ return -EOPNOTSUPP;
+ }
+
+ switch (c->rolloff) {
+ case ROLLOFF_20:
+ state->dnxt.rolloff_val = CX24117_ROLLOFF_020;
+ break;
+ case ROLLOFF_25:
+ state->dnxt.rolloff_val = CX24117_ROLLOFF_025;
+ break;
+ case ROLLOFF_35:
+ state->dnxt.rolloff_val = CX24117_ROLLOFF_035;
+ break;
+ case ROLLOFF_AUTO:
+ state->dnxt.rolloff_val = CX24117_ROLLOFF_035;
+ /* soft-auto rolloff */
+ retune = 3;
+ break;
+ default:
+ dev_warn(&state->priv->i2c->dev,
+ "%s: demod%d unsupported rolloff (%d)\n",
+ KBUILD_MODNAME, state->demod, c->rolloff);
+ return -EOPNOTSUPP;
+ }
+ break;
+
+ default:
+ dev_warn(&state->priv->i2c->dev,
+ "%s: demod %d unsupported delivery system (%d)\n",
+ KBUILD_MODNAME, state->demod, c->delivery_system);
+ return -EINVAL;
+ }
+
+ state->dnxt.delsys = c->delivery_system;
+ state->dnxt.modulation = c->modulation;
+ state->dnxt.frequency = c->frequency;
+ state->dnxt.pilot = c->pilot;
+ state->dnxt.rolloff = c->rolloff;
+
+ ret = cx24117_set_inversion(state, c->inversion);
+ if (ret != 0)
+ return ret;
+
+ ret = cx24117_set_fec(state,
+ c->delivery_system, c->modulation, c->fec_inner);
+ if (ret != 0)
+ return ret;
+
+ ret = cx24117_set_symbolrate(state, c->symbol_rate);
+ if (ret != 0)
+ return ret;
+
+ /* discard the 'current' tuning parameters and prepare to tune */
+ cx24117_clone_params(fe);
+
+ dev_dbg(&state->priv->i2c->dev,
+ "%s: delsys = %d\n", __func__, state->dcur.delsys);
+ dev_dbg(&state->priv->i2c->dev,
+ "%s: modulation = %d\n", __func__, state->dcur.modulation);
+ dev_dbg(&state->priv->i2c->dev,
+ "%s: frequency = %d\n", __func__, state->dcur.frequency);
+ dev_dbg(&state->priv->i2c->dev,
+ "%s: pilot = %d (val = 0x%02x)\n", __func__,
+ state->dcur.pilot, state->dcur.pilot_val);
+ dev_dbg(&state->priv->i2c->dev,
+ "%s: retune = %d\n", __func__, retune);
+ dev_dbg(&state->priv->i2c->dev,
+ "%s: rolloff = %d (val = 0x%02x)\n", __func__,
+ state->dcur.rolloff, state->dcur.rolloff_val);
+ dev_dbg(&state->priv->i2c->dev,
+ "%s: symbol_rate = %d\n", __func__, state->dcur.symbol_rate);
+ dev_dbg(&state->priv->i2c->dev,
+ "%s: FEC = %d (mask/val = 0x%02x/0x%02x)\n", __func__,
+ state->dcur.fec, state->dcur.fec_mask, state->dcur.fec_val);
+ dev_dbg(&state->priv->i2c->dev,
+ "%s: Inversion = %d (val = 0x%02x)\n", __func__,
+ state->dcur.inversion, state->dcur.inversion_val);
+
+ /* Prepare a tune request */
+ cmd.args[0] = CMD_TUNEREQUEST;
+
+ /* demod */
+ cmd.args[1] = state->demod;
+
+ /* Frequency */
+ cmd.args[2] = (state->dcur.frequency & 0xff0000) >> 16;
+ cmd.args[3] = (state->dcur.frequency & 0x00ff00) >> 8;
+ cmd.args[4] = (state->dcur.frequency & 0x0000ff);
+
+ /* Symbol Rate */
+ cmd.args[5] = ((state->dcur.symbol_rate / 1000) & 0xff00) >> 8;
+ cmd.args[6] = ((state->dcur.symbol_rate / 1000) & 0x00ff);
+
+ /* Automatic Inversion */
+ cmd.args[7] = state->dcur.inversion_val;
+
+ /* Modulation / FEC / Pilot */
+ cmd.args[8] = state->dcur.fec_val | state->dcur.pilot_val;
+
+ cmd.args[9] = CX24117_SEARCH_RANGE_KHZ >> 8;
+ cmd.args[10] = CX24117_SEARCH_RANGE_KHZ & 0xff;
+
+ cmd.args[11] = state->dcur.rolloff_val;
+ cmd.args[12] = state->dcur.fec_mask;
+
+ if (state->dcur.symbol_rate > 30000000) {
+ reg_ratediv = 0x04;
+ reg_clkdiv = 0x02;
+ } else if (state->dcur.symbol_rate > 10000000) {
+ reg_ratediv = 0x06;
+ reg_clkdiv = 0x03;
+ } else {
+ reg_ratediv = 0x0a;
+ reg_clkdiv = 0x05;
+ }
+
+ cmd.args[13] = reg_ratediv;
+ cmd.args[14] = reg_clkdiv;
+
+ cx24117_writereg(state, (state->demod == 0) ?
+ CX24117_REG_CLKDIV0 : CX24117_REG_CLKDIV1, reg_clkdiv);
+ cx24117_writereg(state, (state->demod == 0) ?
+ CX24117_REG_RATEDIV0 : CX24117_REG_RATEDIV1, reg_ratediv);
+
+ cmd.args[15] = CX24117_PNE;
+ cmd.len = 16;
+
+ do {
+ /* Reset status register */
+ status = cx24117_readreg(state, (state->demod == 0) ?
+ CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1) &
+ CX24117_SIGNAL_MASK;
+
+ dev_dbg(&state->priv->i2c->dev,
+ "%s() demod%d status_setfe = %02x\n",
+ __func__, state->demod, status);
+
+ cx24117_writereg(state, (state->demod == 0) ?
+ CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1, status);
+
+ /* Tune */
+ ret = cx24117_cmd_execute(fe, &cmd);
+ if (ret != 0)
+ break;
+
+ /*
+ * Wait for up to 500 ms before retrying
+ *
+ * If we are able to tune then generally it occurs within 100ms.
+ * If it takes longer, try a different rolloff setting.
+ */
+ for (i = 0; i < 50; i++) {
+ cx24117_read_status(fe, &tunerstat);
+ status = tunerstat & (FE_HAS_SIGNAL | FE_HAS_SYNC);
+ if (status == (FE_HAS_SIGNAL | FE_HAS_SYNC)) {
+ dev_dbg(&state->priv->i2c->dev,
+ "%s() demod%d tuned\n",
+ __func__, state->demod);
+ return 0;
+ }
+ msleep(20);
+ }
+
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d not tuned\n",
+ __func__, state->demod);
+
+ /* try next rolloff value */
+ if (state->dcur.rolloff == 3)
+ cmd.args[11]--;
+
+ } while (--retune);
+ return -EINVAL;
+}
+
+static int cx24117_tune(struct dvb_frontend *fe, bool re_tune,
+ unsigned int mode_flags, unsigned int *delay, fe_status_t *status)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+
+ dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n",
+ __func__, state->demod);
+
+ *delay = HZ / 5;
+ if (re_tune) {
+ int ret = cx24117_set_frontend(fe);
+ if (ret)
+ return ret;
+ }
+ return cx24117_read_status(fe, status);
+}
+
+static int cx24117_get_algo(struct dvb_frontend *fe)
+{
+ return DVBFE_ALGO_HW;
+}
+
+static int cx24117_get_frontend(struct dvb_frontend *fe)
+{
+ struct cx24117_state *state = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ struct cx24117_cmd cmd;
+ u8 reg, st, inv;
+ int ret, idx;
+ unsigned int freq;
+ short srate_os, freq_os;
+
+ u8 buf[0x1f-4];
+
+ cmd.args[0] = 0x1c;
+ cmd.args[1] = (u8) state->demod;
+ cmd.len = 2;
+ ret = cx24117_cmd_execute(fe, &cmd);
+ if (ret != 0)
+ return ret;
+
+ /* read all required regs at once */
+ reg = (state->demod == 0) ? CX24117_REG_FREQ3_0 : CX24117_REG_FREQ3_1;
+ ret = cx24117_readregN(state, reg, buf, 0x1f-4);
+ if (ret != 0)
+ return ret;
+
+ st = buf[5];
+
+ /* get spectral inversion */
+ inv = (((state->demod == 0) ? ~st : st) >> 6) & 1;
+ if (inv == 0)
+ c->inversion = INVERSION_OFF;
+ else
+ c->inversion = INVERSION_ON;
+
+ /* modulation and fec */
+ idx = st & 0x3f;
+ if (c->delivery_system == SYS_DVBS2) {
+ if (idx > 11)
+ idx += 9;
+ else
+ idx += 7;
+ }
+
+ c->modulation = cx24117_modfec_modes[idx].modulation;
+ c->fec_inner = cx24117_modfec_modes[idx].fec;
+
+ /* frequency */
+ freq = (buf[0] << 16) | (buf[1] << 8) | buf[2];
+ freq_os = (buf[8] << 8) | buf[9];
+ c->frequency = freq + freq_os;
+
+ /* symbol rate */
+ srate_os = (buf[10] << 8) | buf[11];
+ c->symbol_rate = -1000 * srate_os + state->dcur.symbol_rate;
+ return 0;
+}
+
+static struct dvb_frontend_ops cx24117_ops = {
+ .delsys = { SYS_DVBS, SYS_DVBS2 },
+ .info = {
+ .name = "Conexant CX24117/CX24132",
+ .frequency_min = 950000,
+ .frequency_max = 2150000,
+ .frequency_stepsize = 1011, /* kHz for QPSK frontends */
+ .frequency_tolerance = 5000,
+ .symbol_rate_min = 1000000,
+ .symbol_rate_max = 45000000,
+ .caps = FE_CAN_INVERSION_AUTO |
+ FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
+ FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 |
+ FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
+ FE_CAN_2G_MODULATION |
+ FE_CAN_QPSK | FE_CAN_RECOVER
+ },
+
+ .release = cx24117_release,
+
+ .init = cx24117_initfe,
+ .sleep = cx24117_sleep,
+ .read_status = cx24117_read_status,
+ .read_ber = cx24117_read_ber,
+ .read_signal_strength = cx24117_read_signal_strength,
+ .read_snr = cx24117_read_snr,
+ .read_ucblocks = cx24117_read_ucblocks,
+ .set_tone = cx24117_set_tone,
+ .set_voltage = cx24117_set_voltage,
+ .diseqc_send_master_cmd = cx24117_send_diseqc_msg,
+ .diseqc_send_burst = cx24117_diseqc_send_burst,
+ .get_frontend_algo = cx24117_get_algo,
+ .tune = cx24117_tune,
+
+ .set_frontend = cx24117_set_frontend,
+ .get_frontend = cx24117_get_frontend,
+};
+
+
+MODULE_DESCRIPTION("DVB Frontend module for Conexant cx24117/cx24132 hardware");
+MODULE_AUTHOR("Luis Alves (ljalvs@gmail.com)");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("1.1");
+MODULE_FIRMWARE(CX24117_DEFAULT_FIRMWARE);
+
projects / linux-2.6-microblaze.git / commitdiff