1854 lines
45 KiB
C
1854 lines
45 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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Fujitsu MB86A16 DVB-S/DSS DC Receiver driver
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Copyright (C) Manu Abraham (abraham.manu@gmail.com)
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/slab.h>
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#include <media/dvb_frontend.h>
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#include "mb86a16.h"
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#include "mb86a16_priv.h"
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static unsigned int verbose = 5;
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module_param(verbose, int, 0644);
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struct mb86a16_state {
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struct i2c_adapter *i2c_adap;
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const struct mb86a16_config *config;
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struct dvb_frontend frontend;
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/* tuning parameters */
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int frequency;
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int srate;
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/* Internal stuff */
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int master_clk;
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int deci;
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int csel;
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int rsel;
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};
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#define MB86A16_ERROR 0
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#define MB86A16_NOTICE 1
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#define MB86A16_INFO 2
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#define MB86A16_DEBUG 3
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#define dprintk(x, y, z, format, arg...) do { \
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if (z) { \
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if ((x > MB86A16_ERROR) && (x > y)) \
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printk(KERN_ERR "%s: " format "\n", __func__, ##arg); \
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else if ((x > MB86A16_NOTICE) && (x > y)) \
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printk(KERN_NOTICE "%s: " format "\n", __func__, ##arg); \
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else if ((x > MB86A16_INFO) && (x > y)) \
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printk(KERN_INFO "%s: " format "\n", __func__, ##arg); \
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else if ((x > MB86A16_DEBUG) && (x > y)) \
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printk(KERN_DEBUG "%s: " format "\n", __func__, ##arg); \
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} else { \
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if (x > y) \
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printk(format, ##arg); \
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} \
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} while (0)
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#define TRACE_IN dprintk(verbose, MB86A16_DEBUG, 1, "-->()")
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#define TRACE_OUT dprintk(verbose, MB86A16_DEBUG, 1, "()-->")
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static int mb86a16_write(struct mb86a16_state *state, u8 reg, u8 val)
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{
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int ret;
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u8 buf[] = { reg, val };
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struct i2c_msg msg = {
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.addr = state->config->demod_address,
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.flags = 0,
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.buf = buf,
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.len = 2
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};
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dprintk(verbose, MB86A16_DEBUG, 1,
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"writing to [0x%02x],Reg[0x%02x],Data[0x%02x]",
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state->config->demod_address, buf[0], buf[1]);
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ret = i2c_transfer(state->i2c_adap, &msg, 1);
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return (ret != 1) ? -EREMOTEIO : 0;
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}
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static int mb86a16_read(struct mb86a16_state *state, u8 reg, u8 *val)
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{
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int ret;
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u8 b0[] = { reg };
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u8 b1[] = { 0 };
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struct i2c_msg msg[] = {
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{
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.addr = state->config->demod_address,
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.flags = 0,
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.buf = b0,
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.len = 1
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}, {
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.addr = state->config->demod_address,
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.flags = I2C_M_RD,
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.buf = b1,
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.len = 1
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}
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};
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ret = i2c_transfer(state->i2c_adap, msg, 2);
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if (ret != 2) {
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dprintk(verbose, MB86A16_ERROR, 1, "read error(reg=0x%02x, ret=%i)",
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reg, ret);
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if (ret < 0)
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return ret;
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return -EREMOTEIO;
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}
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*val = b1[0];
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return ret;
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}
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static int CNTM_set(struct mb86a16_state *state,
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unsigned char timint1,
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unsigned char timint2,
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unsigned char cnext)
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{
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unsigned char val;
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val = (timint1 << 4) | (timint2 << 2) | cnext;
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if (mb86a16_write(state, MB86A16_CNTMR, val) < 0)
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goto err;
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return 0;
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err:
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dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
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return -EREMOTEIO;
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}
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static int smrt_set(struct mb86a16_state *state, int rate)
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{
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int tmp ;
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int m ;
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unsigned char STOFS0, STOFS1;
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m = 1 << state->deci;
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tmp = (8192 * state->master_clk - 2 * m * rate * 8192 + state->master_clk / 2) / state->master_clk;
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STOFS0 = tmp & 0x0ff;
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STOFS1 = (tmp & 0xf00) >> 8;
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if (mb86a16_write(state, MB86A16_SRATE1, (state->deci << 2) |
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(state->csel << 1) |
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state->rsel) < 0)
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goto err;
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if (mb86a16_write(state, MB86A16_SRATE2, STOFS0) < 0)
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goto err;
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if (mb86a16_write(state, MB86A16_SRATE3, STOFS1) < 0)
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goto err;
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return 0;
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err:
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dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
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return -1;
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}
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static int srst(struct mb86a16_state *state)
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{
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if (mb86a16_write(state, MB86A16_RESET, 0x04) < 0)
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goto err;
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return 0;
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err:
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dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
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return -EREMOTEIO;
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}
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static int afcex_data_set(struct mb86a16_state *state,
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unsigned char AFCEX_L,
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unsigned char AFCEX_H)
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{
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if (mb86a16_write(state, MB86A16_AFCEXL, AFCEX_L) < 0)
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goto err;
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if (mb86a16_write(state, MB86A16_AFCEXH, AFCEX_H) < 0)
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goto err;
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return 0;
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err:
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dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
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return -1;
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}
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static int afcofs_data_set(struct mb86a16_state *state,
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unsigned char AFCEX_L,
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unsigned char AFCEX_H)
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{
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if (mb86a16_write(state, 0x58, AFCEX_L) < 0)
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goto err;
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if (mb86a16_write(state, 0x59, AFCEX_H) < 0)
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goto err;
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return 0;
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err:
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dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
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return -EREMOTEIO;
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}
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static int stlp_set(struct mb86a16_state *state,
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unsigned char STRAS,
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unsigned char STRBS)
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{
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if (mb86a16_write(state, MB86A16_STRFILTCOEF1, (STRBS << 3) | (STRAS)) < 0)
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goto err;
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return 0;
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err:
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dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
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return -EREMOTEIO;
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}
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static int Vi_set(struct mb86a16_state *state, unsigned char ETH, unsigned char VIA)
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{
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if (mb86a16_write(state, MB86A16_VISET2, 0x04) < 0)
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goto err;
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if (mb86a16_write(state, MB86A16_VISET3, 0xf5) < 0)
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goto err;
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return 0;
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err:
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dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
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return -EREMOTEIO;
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}
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static int initial_set(struct mb86a16_state *state)
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{
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if (stlp_set(state, 5, 7))
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goto err;
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udelay(100);
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if (afcex_data_set(state, 0, 0))
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goto err;
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udelay(100);
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if (afcofs_data_set(state, 0, 0))
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goto err;
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udelay(100);
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if (mb86a16_write(state, MB86A16_CRLFILTCOEF1, 0x16) < 0)
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goto err;
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if (mb86a16_write(state, 0x2f, 0x21) < 0)
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goto err;
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if (mb86a16_write(state, MB86A16_VIMAG, 0x38) < 0)
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goto err;
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if (mb86a16_write(state, MB86A16_FAGCS1, 0x00) < 0)
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goto err;
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if (mb86a16_write(state, MB86A16_FAGCS2, 0x1c) < 0)
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goto err;
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if (mb86a16_write(state, MB86A16_FAGCS3, 0x20) < 0)
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goto err;
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if (mb86a16_write(state, MB86A16_FAGCS4, 0x1e) < 0)
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goto err;
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if (mb86a16_write(state, MB86A16_FAGCS5, 0x23) < 0)
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goto err;
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if (mb86a16_write(state, 0x54, 0xff) < 0)
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goto err;
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if (mb86a16_write(state, MB86A16_TSOUT, 0x00) < 0)
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goto err;
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return 0;
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err:
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dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
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return -EREMOTEIO;
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}
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static int S01T_set(struct mb86a16_state *state,
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unsigned char s1t,
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unsigned s0t)
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{
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if (mb86a16_write(state, 0x33, (s1t << 3) | s0t) < 0)
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goto err;
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return 0;
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err:
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dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
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return -EREMOTEIO;
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}
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static int EN_set(struct mb86a16_state *state,
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int cren,
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int afcen)
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{
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unsigned char val;
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val = 0x7a | (cren << 7) | (afcen << 2);
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if (mb86a16_write(state, 0x49, val) < 0)
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goto err;
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return 0;
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err:
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dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
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return -EREMOTEIO;
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}
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static int AFCEXEN_set(struct mb86a16_state *state,
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int afcexen,
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int smrt)
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{
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unsigned char AFCA ;
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if (smrt > 18875)
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AFCA = 4;
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else if (smrt > 9375)
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AFCA = 3;
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else if (smrt > 2250)
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AFCA = 2;
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else
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AFCA = 1;
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if (mb86a16_write(state, 0x2a, 0x02 | (afcexen << 5) | (AFCA << 2)) < 0)
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goto err;
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return 0;
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err:
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dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
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return -EREMOTEIO;
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}
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static int DAGC_data_set(struct mb86a16_state *state,
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unsigned char DAGCA,
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unsigned char DAGCW)
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{
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if (mb86a16_write(state, 0x2d, (DAGCA << 3) | DAGCW) < 0)
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goto err;
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return 0;
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err:
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dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
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return -EREMOTEIO;
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}
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static void smrt_info_get(struct mb86a16_state *state, int rate)
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{
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if (rate >= 37501) {
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state->deci = 0; state->csel = 0; state->rsel = 0;
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} else if (rate >= 30001) {
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state->deci = 0; state->csel = 0; state->rsel = 1;
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} else if (rate >= 26251) {
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state->deci = 0; state->csel = 1; state->rsel = 0;
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} else if (rate >= 22501) {
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state->deci = 0; state->csel = 1; state->rsel = 1;
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} else if (rate >= 18751) {
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state->deci = 1; state->csel = 0; state->rsel = 0;
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} else if (rate >= 15001) {
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state->deci = 1; state->csel = 0; state->rsel = 1;
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} else if (rate >= 13126) {
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state->deci = 1; state->csel = 1; state->rsel = 0;
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} else if (rate >= 11251) {
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state->deci = 1; state->csel = 1; state->rsel = 1;
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} else if (rate >= 9376) {
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state->deci = 2; state->csel = 0; state->rsel = 0;
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} else if (rate >= 7501) {
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state->deci = 2; state->csel = 0; state->rsel = 1;
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} else if (rate >= 6563) {
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state->deci = 2; state->csel = 1; state->rsel = 0;
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} else if (rate >= 5626) {
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state->deci = 2; state->csel = 1; state->rsel = 1;
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} else if (rate >= 4688) {
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state->deci = 3; state->csel = 0; state->rsel = 0;
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} else if (rate >= 3751) {
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state->deci = 3; state->csel = 0; state->rsel = 1;
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} else if (rate >= 3282) {
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state->deci = 3; state->csel = 1; state->rsel = 0;
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} else if (rate >= 2814) {
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state->deci = 3; state->csel = 1; state->rsel = 1;
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} else if (rate >= 2344) {
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state->deci = 4; state->csel = 0; state->rsel = 0;
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} else if (rate >= 1876) {
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state->deci = 4; state->csel = 0; state->rsel = 1;
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} else if (rate >= 1641) {
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state->deci = 4; state->csel = 1; state->rsel = 0;
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} else if (rate >= 1407) {
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state->deci = 4; state->csel = 1; state->rsel = 1;
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} else if (rate >= 1172) {
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state->deci = 5; state->csel = 0; state->rsel = 0;
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} else if (rate >= 939) {
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state->deci = 5; state->csel = 0; state->rsel = 1;
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} else if (rate >= 821) {
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state->deci = 5; state->csel = 1; state->rsel = 0;
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} else {
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state->deci = 5; state->csel = 1; state->rsel = 1;
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}
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if (state->csel == 0)
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state->master_clk = 92000;
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else
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state->master_clk = 61333;
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}
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static int signal_det(struct mb86a16_state *state,
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int smrt,
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unsigned char *SIG)
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{
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int ret;
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int smrtd;
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unsigned char S[3];
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int i;
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if (*SIG > 45) {
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if (CNTM_set(state, 2, 1, 2) < 0) {
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dprintk(verbose, MB86A16_ERROR, 1, "CNTM set Error");
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return -1;
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}
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} else {
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if (CNTM_set(state, 3, 1, 2) < 0) {
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dprintk(verbose, MB86A16_ERROR, 1, "CNTM set Error");
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return -1;
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}
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}
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for (i = 0; i < 3; i++) {
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if (i == 0)
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smrtd = smrt * 98 / 100;
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else if (i == 1)
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smrtd = smrt;
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else
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smrtd = smrt * 102 / 100;
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smrt_info_get(state, smrtd);
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smrt_set(state, smrtd);
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srst(state);
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msleep_interruptible(10);
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if (mb86a16_read(state, 0x37, &(S[i])) != 2) {
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dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
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return -EREMOTEIO;
|
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}
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}
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if ((S[1] > S[0] * 112 / 100) && (S[1] > S[2] * 112 / 100))
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ret = 1;
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else
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ret = 0;
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*SIG = S[1];
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|
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if (CNTM_set(state, 0, 1, 2) < 0) {
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dprintk(verbose, MB86A16_ERROR, 1, "CNTM set Error");
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return -1;
|
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}
|
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|
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return ret;
|
|
}
|
|
|
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static int rf_val_set(struct mb86a16_state *state,
|
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int f,
|
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int smrt,
|
|
unsigned char R)
|
|
{
|
|
unsigned char C, F, B;
|
|
int M;
|
|
unsigned char rf_val[5];
|
|
int ack = -1;
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|
|
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if (smrt > 37750)
|
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C = 1;
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else if (smrt > 18875)
|
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C = 2;
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else if (smrt > 5500)
|
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C = 3;
|
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else
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C = 4;
|
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|
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if (smrt > 30500)
|
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F = 3;
|
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else if (smrt > 9375)
|
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F = 1;
|
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else if (smrt > 4625)
|
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F = 0;
|
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else
|
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F = 2;
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|
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if (f < 1060)
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B = 0;
|
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else if (f < 1175)
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B = 1;
|
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else if (f < 1305)
|
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B = 2;
|
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else if (f < 1435)
|
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B = 3;
|
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else if (f < 1570)
|
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B = 4;
|
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else if (f < 1715)
|
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B = 5;
|
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else if (f < 1845)
|
|
B = 6;
|
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else if (f < 1980)
|
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B = 7;
|
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else if (f < 2080)
|
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B = 8;
|
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else
|
|
B = 9;
|
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|
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M = f * (1 << R) / 2;
|
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|
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rf_val[0] = 0x01 | (C << 3) | (F << 1);
|
|
rf_val[1] = (R << 5) | ((M & 0x1f000) >> 12);
|
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rf_val[2] = (M & 0x00ff0) >> 4;
|
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rf_val[3] = ((M & 0x0000f) << 4) | B;
|
|
|
|
/* Frequency Set */
|
|
if (mb86a16_write(state, 0x21, rf_val[0]) < 0)
|
|
ack = 0;
|
|
if (mb86a16_write(state, 0x22, rf_val[1]) < 0)
|
|
ack = 0;
|
|
if (mb86a16_write(state, 0x23, rf_val[2]) < 0)
|
|
ack = 0;
|
|
if (mb86a16_write(state, 0x24, rf_val[3]) < 0)
|
|
ack = 0;
|
|
if (mb86a16_write(state, 0x25, 0x01) < 0)
|
|
ack = 0;
|
|
if (ack == 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "RF Setup - I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int afcerr_chk(struct mb86a16_state *state)
|
|
{
|
|
unsigned char AFCM_L, AFCM_H ;
|
|
int AFCM ;
|
|
int afcm, afcerr ;
|
|
|
|
if (mb86a16_read(state, 0x0e, &AFCM_L) != 2)
|
|
goto err;
|
|
if (mb86a16_read(state, 0x0f, &AFCM_H) != 2)
|
|
goto err;
|
|
|
|
AFCM = (AFCM_H << 8) + AFCM_L;
|
|
|
|
if (AFCM > 2048)
|
|
afcm = AFCM - 4096;
|
|
else
|
|
afcm = AFCM;
|
|
afcerr = afcm * state->master_clk / 8192;
|
|
|
|
return afcerr;
|
|
|
|
err:
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
static int dagcm_val_get(struct mb86a16_state *state)
|
|
{
|
|
int DAGCM;
|
|
unsigned char DAGCM_H, DAGCM_L;
|
|
|
|
if (mb86a16_read(state, 0x45, &DAGCM_L) != 2)
|
|
goto err;
|
|
if (mb86a16_read(state, 0x46, &DAGCM_H) != 2)
|
|
goto err;
|
|
|
|
DAGCM = (DAGCM_H << 8) + DAGCM_L;
|
|
|
|
return DAGCM;
|
|
|
|
err:
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
static int mb86a16_read_status(struct dvb_frontend *fe, enum fe_status *status)
|
|
{
|
|
u8 stat, stat2;
|
|
struct mb86a16_state *state = fe->demodulator_priv;
|
|
|
|
*status = 0;
|
|
|
|
if (mb86a16_read(state, MB86A16_SIG1, &stat) != 2)
|
|
goto err;
|
|
if (mb86a16_read(state, MB86A16_SIG2, &stat2) != 2)
|
|
goto err;
|
|
if ((stat > 25) && (stat2 > 25))
|
|
*status |= FE_HAS_SIGNAL;
|
|
if ((stat > 45) && (stat2 > 45))
|
|
*status |= FE_HAS_CARRIER;
|
|
|
|
if (mb86a16_read(state, MB86A16_STATUS, &stat) != 2)
|
|
goto err;
|
|
|
|
if (stat & 0x01)
|
|
*status |= FE_HAS_SYNC;
|
|
if (stat & 0x01)
|
|
*status |= FE_HAS_VITERBI;
|
|
|
|
if (mb86a16_read(state, MB86A16_FRAMESYNC, &stat) != 2)
|
|
goto err;
|
|
|
|
if ((stat & 0x0f) && (*status & FE_HAS_VITERBI))
|
|
*status |= FE_HAS_LOCK;
|
|
|
|
return 0;
|
|
|
|
err:
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
static int sync_chk(struct mb86a16_state *state,
|
|
unsigned char *VIRM)
|
|
{
|
|
unsigned char val;
|
|
int sync;
|
|
|
|
if (mb86a16_read(state, 0x0d, &val) != 2)
|
|
goto err;
|
|
|
|
dprintk(verbose, MB86A16_INFO, 1, "Status = %02x,", val);
|
|
sync = val & 0x01;
|
|
*VIRM = (val & 0x1c) >> 2;
|
|
|
|
return sync;
|
|
err:
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
*VIRM = 0;
|
|
return -EREMOTEIO;
|
|
|
|
}
|
|
|
|
static int freqerr_chk(struct mb86a16_state *state,
|
|
int fTP,
|
|
int smrt,
|
|
int unit)
|
|
{
|
|
unsigned char CRM, AFCML, AFCMH;
|
|
unsigned char temp1, temp2, temp3;
|
|
int crm, afcm, AFCM;
|
|
int crrerr, afcerr; /* kHz */
|
|
int frqerr; /* MHz */
|
|
int afcen, afcexen = 0;
|
|
int R, M, fOSC, fOSC_OFS;
|
|
|
|
if (mb86a16_read(state, 0x43, &CRM) != 2)
|
|
goto err;
|
|
|
|
if (CRM > 127)
|
|
crm = CRM - 256;
|
|
else
|
|
crm = CRM;
|
|
|
|
crrerr = smrt * crm / 256;
|
|
if (mb86a16_read(state, 0x49, &temp1) != 2)
|
|
goto err;
|
|
|
|
afcen = (temp1 & 0x04) >> 2;
|
|
if (afcen == 0) {
|
|
if (mb86a16_read(state, 0x2a, &temp1) != 2)
|
|
goto err;
|
|
afcexen = (temp1 & 0x20) >> 5;
|
|
}
|
|
|
|
if (afcen == 1) {
|
|
if (mb86a16_read(state, 0x0e, &AFCML) != 2)
|
|
goto err;
|
|
if (mb86a16_read(state, 0x0f, &AFCMH) != 2)
|
|
goto err;
|
|
} else if (afcexen == 1) {
|
|
if (mb86a16_read(state, 0x2b, &AFCML) != 2)
|
|
goto err;
|
|
if (mb86a16_read(state, 0x2c, &AFCMH) != 2)
|
|
goto err;
|
|
}
|
|
if ((afcen == 1) || (afcexen == 1)) {
|
|
smrt_info_get(state, smrt);
|
|
AFCM = ((AFCMH & 0x01) << 8) + AFCML;
|
|
if (AFCM > 255)
|
|
afcm = AFCM - 512;
|
|
else
|
|
afcm = AFCM;
|
|
|
|
afcerr = afcm * state->master_clk / 8192;
|
|
} else
|
|
afcerr = 0;
|
|
|
|
if (mb86a16_read(state, 0x22, &temp1) != 2)
|
|
goto err;
|
|
if (mb86a16_read(state, 0x23, &temp2) != 2)
|
|
goto err;
|
|
if (mb86a16_read(state, 0x24, &temp3) != 2)
|
|
goto err;
|
|
|
|
R = (temp1 & 0xe0) >> 5;
|
|
M = ((temp1 & 0x1f) << 12) + (temp2 << 4) + (temp3 >> 4);
|
|
if (R == 0)
|
|
fOSC = 2 * M;
|
|
else
|
|
fOSC = M;
|
|
|
|
fOSC_OFS = fOSC - fTP;
|
|
|
|
if (unit == 0) { /* MHz */
|
|
if (crrerr + afcerr + fOSC_OFS * 1000 >= 0)
|
|
frqerr = (crrerr + afcerr + fOSC_OFS * 1000 + 500) / 1000;
|
|
else
|
|
frqerr = (crrerr + afcerr + fOSC_OFS * 1000 - 500) / 1000;
|
|
} else { /* kHz */
|
|
frqerr = crrerr + afcerr + fOSC_OFS * 1000;
|
|
}
|
|
|
|
return frqerr;
|
|
err:
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
static unsigned char vco_dev_get(struct mb86a16_state *state, int smrt)
|
|
{
|
|
unsigned char R;
|
|
|
|
if (smrt > 9375)
|
|
R = 0;
|
|
else
|
|
R = 1;
|
|
|
|
return R;
|
|
}
|
|
|
|
static void swp_info_get(struct mb86a16_state *state,
|
|
int fOSC_start,
|
|
int smrt,
|
|
int v, int R,
|
|
int swp_ofs,
|
|
int *fOSC,
|
|
int *afcex_freq,
|
|
unsigned char *AFCEX_L,
|
|
unsigned char *AFCEX_H)
|
|
{
|
|
int AFCEX ;
|
|
int crnt_swp_freq ;
|
|
|
|
crnt_swp_freq = fOSC_start * 1000 + v * swp_ofs;
|
|
|
|
if (R == 0)
|
|
*fOSC = (crnt_swp_freq + 1000) / 2000 * 2;
|
|
else
|
|
*fOSC = (crnt_swp_freq + 500) / 1000;
|
|
|
|
if (*fOSC >= crnt_swp_freq)
|
|
*afcex_freq = *fOSC * 1000 - crnt_swp_freq;
|
|
else
|
|
*afcex_freq = crnt_swp_freq - *fOSC * 1000;
|
|
|
|
AFCEX = *afcex_freq * 8192 / state->master_clk;
|
|
*AFCEX_L = AFCEX & 0x00ff;
|
|
*AFCEX_H = (AFCEX & 0x0f00) >> 8;
|
|
}
|
|
|
|
|
|
static int swp_freq_calcuation(struct mb86a16_state *state, int i, int v, int *V, int vmax, int vmin,
|
|
int SIGMIN, int fOSC, int afcex_freq, int swp_ofs, unsigned char *SIG1)
|
|
{
|
|
int swp_freq ;
|
|
|
|
if ((i % 2 == 1) && (v <= vmax)) {
|
|
/* positive v (case 1) */
|
|
if ((v - 1 == vmin) &&
|
|
(*(V + 30 + v) >= 0) &&
|
|
(*(V + 30 + v - 1) >= 0) &&
|
|
(*(V + 30 + v - 1) > *(V + 30 + v)) &&
|
|
(*(V + 30 + v - 1) > SIGMIN)) {
|
|
|
|
swp_freq = fOSC * 1000 + afcex_freq - swp_ofs;
|
|
*SIG1 = *(V + 30 + v - 1);
|
|
} else if ((v == vmax) &&
|
|
(*(V + 30 + v) >= 0) &&
|
|
(*(V + 30 + v - 1) >= 0) &&
|
|
(*(V + 30 + v) > *(V + 30 + v - 1)) &&
|
|
(*(V + 30 + v) > SIGMIN)) {
|
|
/* (case 2) */
|
|
swp_freq = fOSC * 1000 + afcex_freq;
|
|
*SIG1 = *(V + 30 + v);
|
|
} else if ((*(V + 30 + v) > 0) &&
|
|
(*(V + 30 + v - 1) > 0) &&
|
|
(*(V + 30 + v - 2) > 0) &&
|
|
(*(V + 30 + v - 3) > 0) &&
|
|
(*(V + 30 + v - 1) > *(V + 30 + v)) &&
|
|
(*(V + 30 + v - 2) > *(V + 30 + v - 3)) &&
|
|
((*(V + 30 + v - 1) > SIGMIN) ||
|
|
(*(V + 30 + v - 2) > SIGMIN))) {
|
|
/* (case 3) */
|
|
if (*(V + 30 + v - 1) >= *(V + 30 + v - 2)) {
|
|
swp_freq = fOSC * 1000 + afcex_freq - swp_ofs;
|
|
*SIG1 = *(V + 30 + v - 1);
|
|
} else {
|
|
swp_freq = fOSC * 1000 + afcex_freq - swp_ofs * 2;
|
|
*SIG1 = *(V + 30 + v - 2);
|
|
}
|
|
} else if ((v == vmax) &&
|
|
(*(V + 30 + v) >= 0) &&
|
|
(*(V + 30 + v - 1) >= 0) &&
|
|
(*(V + 30 + v - 2) >= 0) &&
|
|
(*(V + 30 + v) > *(V + 30 + v - 2)) &&
|
|
(*(V + 30 + v - 1) > *(V + 30 + v - 2)) &&
|
|
((*(V + 30 + v) > SIGMIN) ||
|
|
(*(V + 30 + v - 1) > SIGMIN))) {
|
|
/* (case 4) */
|
|
if (*(V + 30 + v) >= *(V + 30 + v - 1)) {
|
|
swp_freq = fOSC * 1000 + afcex_freq;
|
|
*SIG1 = *(V + 30 + v);
|
|
} else {
|
|
swp_freq = fOSC * 1000 + afcex_freq - swp_ofs;
|
|
*SIG1 = *(V + 30 + v - 1);
|
|
}
|
|
} else {
|
|
swp_freq = -1 ;
|
|
}
|
|
} else if ((i % 2 == 0) && (v >= vmin)) {
|
|
/* Negative v (case 1) */
|
|
if ((*(V + 30 + v) > 0) &&
|
|
(*(V + 30 + v + 1) > 0) &&
|
|
(*(V + 30 + v + 2) > 0) &&
|
|
(*(V + 30 + v + 1) > *(V + 30 + v)) &&
|
|
(*(V + 30 + v + 1) > *(V + 30 + v + 2)) &&
|
|
(*(V + 30 + v + 1) > SIGMIN)) {
|
|
|
|
swp_freq = fOSC * 1000 + afcex_freq + swp_ofs;
|
|
*SIG1 = *(V + 30 + v + 1);
|
|
} else if ((v + 1 == vmax) &&
|
|
(*(V + 30 + v) >= 0) &&
|
|
(*(V + 30 + v + 1) >= 0) &&
|
|
(*(V + 30 + v + 1) > *(V + 30 + v)) &&
|
|
(*(V + 30 + v + 1) > SIGMIN)) {
|
|
/* (case 2) */
|
|
swp_freq = fOSC * 1000 + afcex_freq + swp_ofs;
|
|
*SIG1 = *(V + 30 + v);
|
|
} else if ((v == vmin) &&
|
|
(*(V + 30 + v) > 0) &&
|
|
(*(V + 30 + v + 1) > 0) &&
|
|
(*(V + 30 + v + 2) > 0) &&
|
|
(*(V + 30 + v) > *(V + 30 + v + 1)) &&
|
|
(*(V + 30 + v) > *(V + 30 + v + 2)) &&
|
|
(*(V + 30 + v) > SIGMIN)) {
|
|
/* (case 3) */
|
|
swp_freq = fOSC * 1000 + afcex_freq;
|
|
*SIG1 = *(V + 30 + v);
|
|
} else if ((*(V + 30 + v) >= 0) &&
|
|
(*(V + 30 + v + 1) >= 0) &&
|
|
(*(V + 30 + v + 2) >= 0) &&
|
|
(*(V + 30 + v + 3) >= 0) &&
|
|
(*(V + 30 + v + 1) > *(V + 30 + v)) &&
|
|
(*(V + 30 + v + 2) > *(V + 30 + v + 3)) &&
|
|
((*(V + 30 + v + 1) > SIGMIN) ||
|
|
(*(V + 30 + v + 2) > SIGMIN))) {
|
|
/* (case 4) */
|
|
if (*(V + 30 + v + 1) >= *(V + 30 + v + 2)) {
|
|
swp_freq = fOSC * 1000 + afcex_freq + swp_ofs;
|
|
*SIG1 = *(V + 30 + v + 1);
|
|
} else {
|
|
swp_freq = fOSC * 1000 + afcex_freq + swp_ofs * 2;
|
|
*SIG1 = *(V + 30 + v + 2);
|
|
}
|
|
} else if ((*(V + 30 + v) >= 0) &&
|
|
(*(V + 30 + v + 1) >= 0) &&
|
|
(*(V + 30 + v + 2) >= 0) &&
|
|
(*(V + 30 + v + 3) >= 0) &&
|
|
(*(V + 30 + v) > *(V + 30 + v + 2)) &&
|
|
(*(V + 30 + v + 1) > *(V + 30 + v + 2)) &&
|
|
(*(V + 30 + v) > *(V + 30 + v + 3)) &&
|
|
(*(V + 30 + v + 1) > *(V + 30 + v + 3)) &&
|
|
((*(V + 30 + v) > SIGMIN) ||
|
|
(*(V + 30 + v + 1) > SIGMIN))) {
|
|
/* (case 5) */
|
|
if (*(V + 30 + v) >= *(V + 30 + v + 1)) {
|
|
swp_freq = fOSC * 1000 + afcex_freq;
|
|
*SIG1 = *(V + 30 + v);
|
|
} else {
|
|
swp_freq = fOSC * 1000 + afcex_freq + swp_ofs;
|
|
*SIG1 = *(V + 30 + v + 1);
|
|
}
|
|
} else if ((v + 2 == vmin) &&
|
|
(*(V + 30 + v) >= 0) &&
|
|
(*(V + 30 + v + 1) >= 0) &&
|
|
(*(V + 30 + v + 2) >= 0) &&
|
|
(*(V + 30 + v + 1) > *(V + 30 + v)) &&
|
|
(*(V + 30 + v + 2) > *(V + 30 + v)) &&
|
|
((*(V + 30 + v + 1) > SIGMIN) ||
|
|
(*(V + 30 + v + 2) > SIGMIN))) {
|
|
/* (case 6) */
|
|
if (*(V + 30 + v + 1) >= *(V + 30 + v + 2)) {
|
|
swp_freq = fOSC * 1000 + afcex_freq + swp_ofs;
|
|
*SIG1 = *(V + 30 + v + 1);
|
|
} else {
|
|
swp_freq = fOSC * 1000 + afcex_freq + swp_ofs * 2;
|
|
*SIG1 = *(V + 30 + v + 2);
|
|
}
|
|
} else if ((vmax == 0) && (vmin == 0) && (*(V + 30 + v) > SIGMIN)) {
|
|
swp_freq = fOSC * 1000;
|
|
*SIG1 = *(V + 30 + v);
|
|
} else
|
|
swp_freq = -1;
|
|
} else
|
|
swp_freq = -1;
|
|
|
|
return swp_freq;
|
|
}
|
|
|
|
static void swp_info_get2(struct mb86a16_state *state,
|
|
int smrt,
|
|
int R,
|
|
int swp_freq,
|
|
int *afcex_freq,
|
|
int *fOSC,
|
|
unsigned char *AFCEX_L,
|
|
unsigned char *AFCEX_H)
|
|
{
|
|
int AFCEX ;
|
|
|
|
if (R == 0)
|
|
*fOSC = (swp_freq + 1000) / 2000 * 2;
|
|
else
|
|
*fOSC = (swp_freq + 500) / 1000;
|
|
|
|
if (*fOSC >= swp_freq)
|
|
*afcex_freq = *fOSC * 1000 - swp_freq;
|
|
else
|
|
*afcex_freq = swp_freq - *fOSC * 1000;
|
|
|
|
AFCEX = *afcex_freq * 8192 / state->master_clk;
|
|
*AFCEX_L = AFCEX & 0x00ff;
|
|
*AFCEX_H = (AFCEX & 0x0f00) >> 8;
|
|
}
|
|
|
|
static void afcex_info_get(struct mb86a16_state *state,
|
|
int afcex_freq,
|
|
unsigned char *AFCEX_L,
|
|
unsigned char *AFCEX_H)
|
|
{
|
|
int AFCEX ;
|
|
|
|
AFCEX = afcex_freq * 8192 / state->master_clk;
|
|
*AFCEX_L = AFCEX & 0x00ff;
|
|
*AFCEX_H = (AFCEX & 0x0f00) >> 8;
|
|
}
|
|
|
|
static int SEQ_set(struct mb86a16_state *state, unsigned char loop)
|
|
{
|
|
/* SLOCK0 = 0 */
|
|
if (mb86a16_write(state, 0x32, 0x02 | (loop << 2)) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int iq_vt_set(struct mb86a16_state *state, unsigned char IQINV)
|
|
{
|
|
/* Viterbi Rate, IQ Settings */
|
|
if (mb86a16_write(state, 0x06, 0xdf | (IQINV << 5)) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int FEC_srst(struct mb86a16_state *state)
|
|
{
|
|
if (mb86a16_write(state, MB86A16_RESET, 0x02) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int S2T_set(struct mb86a16_state *state, unsigned char S2T)
|
|
{
|
|
if (mb86a16_write(state, 0x34, 0x70 | S2T) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int S45T_set(struct mb86a16_state *state, unsigned char S4T, unsigned char S5T)
|
|
{
|
|
if (mb86a16_write(state, 0x35, 0x00 | (S5T << 4) | S4T) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int mb86a16_set_fe(struct mb86a16_state *state)
|
|
{
|
|
u8 agcval, cnmval;
|
|
|
|
int i, j;
|
|
int fOSC = 0;
|
|
int fOSC_start = 0;
|
|
int wait_t;
|
|
int fcp;
|
|
int swp_ofs;
|
|
int V[60];
|
|
u8 SIG1MIN;
|
|
|
|
unsigned char CREN, AFCEN, AFCEXEN;
|
|
unsigned char SIG1;
|
|
unsigned char TIMINT1, TIMINT2, TIMEXT;
|
|
unsigned char S0T, S1T;
|
|
unsigned char S2T;
|
|
/* unsigned char S2T, S3T; */
|
|
unsigned char S4T, S5T;
|
|
unsigned char AFCEX_L, AFCEX_H;
|
|
unsigned char R;
|
|
unsigned char VIRM;
|
|
unsigned char ETH, VIA;
|
|
unsigned char junk;
|
|
|
|
int loop;
|
|
int ftemp;
|
|
int v, vmax, vmin;
|
|
int vmax_his, vmin_his;
|
|
int swp_freq, prev_swp_freq[20];
|
|
int prev_freq_num;
|
|
int signal_dupl;
|
|
int afcex_freq;
|
|
int signal;
|
|
int afcerr;
|
|
int temp_freq, delta_freq;
|
|
int dagcm[4];
|
|
int smrt_d;
|
|
/* int freq_err; */
|
|
int n;
|
|
int ret = -1;
|
|
int sync;
|
|
|
|
dprintk(verbose, MB86A16_INFO, 1, "freq=%d Mhz, symbrt=%d Ksps", state->frequency, state->srate);
|
|
|
|
fcp = 3000;
|
|
swp_ofs = state->srate / 4;
|
|
|
|
for (i = 0; i < 60; i++)
|
|
V[i] = -1;
|
|
|
|
for (i = 0; i < 20; i++)
|
|
prev_swp_freq[i] = 0;
|
|
|
|
SIG1MIN = 25;
|
|
|
|
for (n = 0; ((n < 3) && (ret == -1)); n++) {
|
|
SEQ_set(state, 0);
|
|
iq_vt_set(state, 0);
|
|
|
|
CREN = 0;
|
|
AFCEN = 0;
|
|
AFCEXEN = 1;
|
|
TIMINT1 = 0;
|
|
TIMINT2 = 1;
|
|
TIMEXT = 2;
|
|
S1T = 0;
|
|
S0T = 0;
|
|
|
|
if (initial_set(state) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "initial set failed");
|
|
return -1;
|
|
}
|
|
if (DAGC_data_set(state, 3, 2) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "DAGC data set error");
|
|
return -1;
|
|
}
|
|
if (EN_set(state, CREN, AFCEN) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "EN set error");
|
|
return -1; /* (0, 0) */
|
|
}
|
|
if (AFCEXEN_set(state, AFCEXEN, state->srate) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "AFCEXEN set error");
|
|
return -1; /* (1, smrt) = (1, symbolrate) */
|
|
}
|
|
if (CNTM_set(state, TIMINT1, TIMINT2, TIMEXT) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "CNTM set error");
|
|
return -1; /* (0, 1, 2) */
|
|
}
|
|
if (S01T_set(state, S1T, S0T) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "S01T set error");
|
|
return -1; /* (0, 0) */
|
|
}
|
|
smrt_info_get(state, state->srate);
|
|
if (smrt_set(state, state->srate) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "smrt info get error");
|
|
return -1;
|
|
}
|
|
|
|
R = vco_dev_get(state, state->srate);
|
|
if (R == 1)
|
|
fOSC_start = state->frequency;
|
|
|
|
else if (R == 0) {
|
|
if (state->frequency % 2 == 0) {
|
|
fOSC_start = state->frequency;
|
|
} else {
|
|
fOSC_start = state->frequency + 1;
|
|
if (fOSC_start > 2150)
|
|
fOSC_start = state->frequency - 1;
|
|
}
|
|
}
|
|
loop = 1;
|
|
ftemp = fOSC_start * 1000;
|
|
vmax = 0 ;
|
|
while (loop == 1) {
|
|
ftemp = ftemp + swp_ofs;
|
|
vmax++;
|
|
|
|
/* Upper bound */
|
|
if (ftemp > 2150000) {
|
|
loop = 0;
|
|
vmax--;
|
|
} else {
|
|
if ((ftemp == 2150000) ||
|
|
(ftemp - state->frequency * 1000 >= fcp + state->srate / 4))
|
|
loop = 0;
|
|
}
|
|
}
|
|
|
|
loop = 1;
|
|
ftemp = fOSC_start * 1000;
|
|
vmin = 0 ;
|
|
while (loop == 1) {
|
|
ftemp = ftemp - swp_ofs;
|
|
vmin--;
|
|
|
|
/* Lower bound */
|
|
if (ftemp < 950000) {
|
|
loop = 0;
|
|
vmin++;
|
|
} else {
|
|
if ((ftemp == 950000) ||
|
|
(state->frequency * 1000 - ftemp >= fcp + state->srate / 4))
|
|
loop = 0;
|
|
}
|
|
}
|
|
|
|
wait_t = (8000 + state->srate / 2) / state->srate;
|
|
if (wait_t == 0)
|
|
wait_t = 1;
|
|
|
|
i = 0;
|
|
j = 0;
|
|
prev_freq_num = 0;
|
|
loop = 1;
|
|
signal = 0;
|
|
vmax_his = 0;
|
|
vmin_his = 0;
|
|
v = 0;
|
|
|
|
while (loop == 1) {
|
|
swp_info_get(state, fOSC_start, state->srate,
|
|
v, R, swp_ofs, &fOSC,
|
|
&afcex_freq, &AFCEX_L, &AFCEX_H);
|
|
|
|
udelay(100);
|
|
if (rf_val_set(state, fOSC, state->srate, R) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "rf val set error");
|
|
return -1;
|
|
}
|
|
udelay(100);
|
|
if (afcex_data_set(state, AFCEX_L, AFCEX_H) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "afcex data set error");
|
|
return -1;
|
|
}
|
|
if (srst(state) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "srst error");
|
|
return -1;
|
|
}
|
|
msleep_interruptible(wait_t);
|
|
|
|
if (mb86a16_read(state, 0x37, &SIG1) != 2) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -1;
|
|
}
|
|
V[30 + v] = SIG1 ;
|
|
swp_freq = swp_freq_calcuation(state, i, v, V, vmax, vmin,
|
|
SIG1MIN, fOSC, afcex_freq,
|
|
swp_ofs, &SIG1); /* changed */
|
|
|
|
signal_dupl = 0;
|
|
for (j = 0; j < prev_freq_num; j++) {
|
|
if ((abs(prev_swp_freq[j] - swp_freq)) < (swp_ofs * 3 / 2)) {
|
|
signal_dupl = 1;
|
|
dprintk(verbose, MB86A16_INFO, 1, "Probably Duplicate Signal, j = %d", j);
|
|
}
|
|
}
|
|
if ((signal_dupl == 0) && (swp_freq > 0) && (abs(swp_freq - state->frequency * 1000) < fcp + state->srate / 6)) {
|
|
dprintk(verbose, MB86A16_DEBUG, 1, "------ Signal detect ------ [swp_freq=[%07d, srate=%05d]]", swp_freq, state->srate);
|
|
prev_swp_freq[prev_freq_num] = swp_freq;
|
|
prev_freq_num++;
|
|
swp_info_get2(state, state->srate, R, swp_freq,
|
|
&afcex_freq, &fOSC,
|
|
&AFCEX_L, &AFCEX_H);
|
|
|
|
if (rf_val_set(state, fOSC, state->srate, R) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "rf val set error");
|
|
return -1;
|
|
}
|
|
if (afcex_data_set(state, AFCEX_L, AFCEX_H) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "afcex data set error");
|
|
return -1;
|
|
}
|
|
signal = signal_det(state, state->srate, &SIG1);
|
|
if (signal == 1) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "***** Signal Found *****");
|
|
loop = 0;
|
|
} else {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "!!!!! No signal !!!!!, try again...");
|
|
smrt_info_get(state, state->srate);
|
|
if (smrt_set(state, state->srate) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "smrt set error");
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
if (v > vmax)
|
|
vmax_his = 1 ;
|
|
if (v < vmin)
|
|
vmin_his = 1 ;
|
|
i++;
|
|
|
|
if ((i % 2 == 1) && (vmax_his == 1))
|
|
i++;
|
|
if ((i % 2 == 0) && (vmin_his == 1))
|
|
i++;
|
|
|
|
if (i % 2 == 1)
|
|
v = (i + 1) / 2;
|
|
else
|
|
v = -i / 2;
|
|
|
|
if ((vmax_his == 1) && (vmin_his == 1))
|
|
loop = 0 ;
|
|
}
|
|
|
|
if (signal == 1) {
|
|
dprintk(verbose, MB86A16_INFO, 1, " Start Freq Error Check");
|
|
S1T = 7 ;
|
|
S0T = 1 ;
|
|
CREN = 0 ;
|
|
AFCEN = 1 ;
|
|
AFCEXEN = 0 ;
|
|
|
|
if (S01T_set(state, S1T, S0T) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "S01T set error");
|
|
return -1;
|
|
}
|
|
smrt_info_get(state, state->srate);
|
|
if (smrt_set(state, state->srate) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "smrt set error");
|
|
return -1;
|
|
}
|
|
if (EN_set(state, CREN, AFCEN) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "EN set error");
|
|
return -1;
|
|
}
|
|
if (AFCEXEN_set(state, AFCEXEN, state->srate) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "AFCEXEN set error");
|
|
return -1;
|
|
}
|
|
afcex_info_get(state, afcex_freq, &AFCEX_L, &AFCEX_H);
|
|
if (afcofs_data_set(state, AFCEX_L, AFCEX_H) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "AFCOFS data set error");
|
|
return -1;
|
|
}
|
|
if (srst(state) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "srst error");
|
|
return -1;
|
|
}
|
|
/* delay 4~200 */
|
|
wait_t = 200000 / state->master_clk + 200000 / state->srate;
|
|
msleep(wait_t);
|
|
afcerr = afcerr_chk(state);
|
|
if (afcerr == -1)
|
|
return -1;
|
|
|
|
swp_freq = fOSC * 1000 + afcerr ;
|
|
AFCEXEN = 1 ;
|
|
if (state->srate >= 1500)
|
|
smrt_d = state->srate / 3;
|
|
else
|
|
smrt_d = state->srate / 2;
|
|
smrt_info_get(state, smrt_d);
|
|
if (smrt_set(state, smrt_d) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "smrt set error");
|
|
return -1;
|
|
}
|
|
if (AFCEXEN_set(state, AFCEXEN, smrt_d) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "AFCEXEN set error");
|
|
return -1;
|
|
}
|
|
R = vco_dev_get(state, smrt_d);
|
|
if (DAGC_data_set(state, 2, 0) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "DAGC data set error");
|
|
return -1;
|
|
}
|
|
for (i = 0; i < 3; i++) {
|
|
temp_freq = swp_freq + (i - 1) * state->srate / 8;
|
|
swp_info_get2(state, smrt_d, R, temp_freq, &afcex_freq, &fOSC, &AFCEX_L, &AFCEX_H);
|
|
if (rf_val_set(state, fOSC, smrt_d, R) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "rf val set error");
|
|
return -1;
|
|
}
|
|
if (afcex_data_set(state, AFCEX_L, AFCEX_H) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "afcex data set error");
|
|
return -1;
|
|
}
|
|
wait_t = 200000 / state->master_clk + 40000 / smrt_d;
|
|
msleep(wait_t);
|
|
dagcm[i] = dagcm_val_get(state);
|
|
}
|
|
if ((dagcm[0] > dagcm[1]) &&
|
|
(dagcm[0] > dagcm[2]) &&
|
|
(dagcm[0] - dagcm[1] > 2 * (dagcm[2] - dagcm[1]))) {
|
|
|
|
temp_freq = swp_freq - 2 * state->srate / 8;
|
|
swp_info_get2(state, smrt_d, R, temp_freq, &afcex_freq, &fOSC, &AFCEX_L, &AFCEX_H);
|
|
if (rf_val_set(state, fOSC, smrt_d, R) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "rf val set error");
|
|
return -1;
|
|
}
|
|
if (afcex_data_set(state, AFCEX_L, AFCEX_H) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "afcex data set");
|
|
return -1;
|
|
}
|
|
wait_t = 200000 / state->master_clk + 40000 / smrt_d;
|
|
msleep(wait_t);
|
|
dagcm[3] = dagcm_val_get(state);
|
|
if (dagcm[3] > dagcm[1])
|
|
delta_freq = (dagcm[2] - dagcm[0] + dagcm[1] - dagcm[3]) * state->srate / 300;
|
|
else
|
|
delta_freq = 0;
|
|
} else if ((dagcm[2] > dagcm[1]) &&
|
|
(dagcm[2] > dagcm[0]) &&
|
|
(dagcm[2] - dagcm[1] > 2 * (dagcm[0] - dagcm[1]))) {
|
|
|
|
temp_freq = swp_freq + 2 * state->srate / 8;
|
|
swp_info_get2(state, smrt_d, R, temp_freq, &afcex_freq, &fOSC, &AFCEX_L, &AFCEX_H);
|
|
if (rf_val_set(state, fOSC, smrt_d, R) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "rf val set");
|
|
return -1;
|
|
}
|
|
if (afcex_data_set(state, AFCEX_L, AFCEX_H) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "afcex data set");
|
|
return -1;
|
|
}
|
|
wait_t = 200000 / state->master_clk + 40000 / smrt_d;
|
|
msleep(wait_t);
|
|
dagcm[3] = dagcm_val_get(state);
|
|
if (dagcm[3] > dagcm[1])
|
|
delta_freq = (dagcm[2] - dagcm[0] + dagcm[3] - dagcm[1]) * state->srate / 300;
|
|
else
|
|
delta_freq = 0 ;
|
|
|
|
} else {
|
|
delta_freq = 0 ;
|
|
}
|
|
dprintk(verbose, MB86A16_INFO, 1, "SWEEP Frequency = %d", swp_freq);
|
|
swp_freq += delta_freq;
|
|
dprintk(verbose, MB86A16_INFO, 1, "Adjusting .., DELTA Freq = %d, SWEEP Freq=%d", delta_freq, swp_freq);
|
|
if (abs(state->frequency * 1000 - swp_freq) > 3800) {
|
|
dprintk(verbose, MB86A16_INFO, 1, "NO -- SIGNAL !");
|
|
} else {
|
|
|
|
S1T = 0;
|
|
S0T = 3;
|
|
CREN = 1;
|
|
AFCEN = 0;
|
|
AFCEXEN = 1;
|
|
|
|
if (S01T_set(state, S1T, S0T) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "S01T set error");
|
|
return -1;
|
|
}
|
|
if (DAGC_data_set(state, 0, 0) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "DAGC data set error");
|
|
return -1;
|
|
}
|
|
R = vco_dev_get(state, state->srate);
|
|
smrt_info_get(state, state->srate);
|
|
if (smrt_set(state, state->srate) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "smrt set error");
|
|
return -1;
|
|
}
|
|
if (EN_set(state, CREN, AFCEN) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "EN set error");
|
|
return -1;
|
|
}
|
|
if (AFCEXEN_set(state, AFCEXEN, state->srate) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "AFCEXEN set error");
|
|
return -1;
|
|
}
|
|
swp_info_get2(state, state->srate, R, swp_freq, &afcex_freq, &fOSC, &AFCEX_L, &AFCEX_H);
|
|
if (rf_val_set(state, fOSC, state->srate, R) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "rf val set error");
|
|
return -1;
|
|
}
|
|
if (afcex_data_set(state, AFCEX_L, AFCEX_H) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "afcex data set error");
|
|
return -1;
|
|
}
|
|
if (srst(state) < 0) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "srst error");
|
|
return -1;
|
|
}
|
|
wait_t = 7 + (10000 + state->srate / 2) / state->srate;
|
|
if (wait_t == 0)
|
|
wait_t = 1;
|
|
msleep_interruptible(wait_t);
|
|
if (mb86a16_read(state, 0x37, &SIG1) != 2) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
if (SIG1 > 110) {
|
|
S2T = 4; S4T = 1; S5T = 6; ETH = 4; VIA = 6;
|
|
wait_t = 7 + (917504 + state->srate / 2) / state->srate;
|
|
} else if (SIG1 > 105) {
|
|
S2T = 4; S4T = 2; S5T = 8; ETH = 7; VIA = 2;
|
|
wait_t = 7 + (1048576 + state->srate / 2) / state->srate;
|
|
} else if (SIG1 > 85) {
|
|
S2T = 5; S4T = 2; S5T = 8; ETH = 7; VIA = 2;
|
|
wait_t = 7 + (1310720 + state->srate / 2) / state->srate;
|
|
} else if (SIG1 > 65) {
|
|
S2T = 6; S4T = 2; S5T = 8; ETH = 7; VIA = 2;
|
|
wait_t = 7 + (1572864 + state->srate / 2) / state->srate;
|
|
} else {
|
|
S2T = 7; S4T = 2; S5T = 8; ETH = 7; VIA = 2;
|
|
wait_t = 7 + (2097152 + state->srate / 2) / state->srate;
|
|
}
|
|
wait_t *= 2; /* FOS */
|
|
S2T_set(state, S2T);
|
|
S45T_set(state, S4T, S5T);
|
|
Vi_set(state, ETH, VIA);
|
|
srst(state);
|
|
msleep_interruptible(wait_t);
|
|
sync = sync_chk(state, &VIRM);
|
|
dprintk(verbose, MB86A16_INFO, 1, "-------- Viterbi=[%d] SYNC=[%d] ---------", VIRM, sync);
|
|
if (VIRM) {
|
|
if (VIRM == 4) {
|
|
/* 5/6 */
|
|
if (SIG1 > 110)
|
|
wait_t = (786432 + state->srate / 2) / state->srate;
|
|
else
|
|
wait_t = (1572864 + state->srate / 2) / state->srate;
|
|
|
|
msleep_interruptible(wait_t);
|
|
|
|
if (sync_chk(state, &junk) == 0) {
|
|
iq_vt_set(state, 1);
|
|
FEC_srst(state);
|
|
}
|
|
}
|
|
/* 1/2, 2/3, 3/4, 7/8 */
|
|
if (SIG1 > 110)
|
|
wait_t = (786432 + state->srate / 2) / state->srate;
|
|
else
|
|
wait_t = (1572864 + state->srate / 2) / state->srate;
|
|
msleep_interruptible(wait_t);
|
|
SEQ_set(state, 1);
|
|
} else {
|
|
dprintk(verbose, MB86A16_INFO, 1, "NO -- SYNC");
|
|
SEQ_set(state, 1);
|
|
ret = -1;
|
|
}
|
|
}
|
|
} else {
|
|
dprintk(verbose, MB86A16_INFO, 1, "NO -- SIGNAL");
|
|
ret = -1;
|
|
}
|
|
|
|
sync = sync_chk(state, &junk);
|
|
if (sync) {
|
|
dprintk(verbose, MB86A16_INFO, 1, "******* SYNC *******");
|
|
freqerr_chk(state, state->frequency, state->srate, 1);
|
|
ret = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
mb86a16_read(state, 0x15, &agcval);
|
|
mb86a16_read(state, 0x26, &cnmval);
|
|
dprintk(verbose, MB86A16_INFO, 1, "AGC = %02x CNM = %02x", agcval, cnmval);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mb86a16_send_diseqc_msg(struct dvb_frontend *fe,
|
|
struct dvb_diseqc_master_cmd *cmd)
|
|
{
|
|
struct mb86a16_state *state = fe->demodulator_priv;
|
|
int i;
|
|
u8 regs;
|
|
|
|
if (mb86a16_write(state, MB86A16_DCC1, MB86A16_DCC1_DISTA) < 0)
|
|
goto err;
|
|
if (mb86a16_write(state, MB86A16_DCCOUT, 0x00) < 0)
|
|
goto err;
|
|
if (mb86a16_write(state, MB86A16_TONEOUT2, 0x04) < 0)
|
|
goto err;
|
|
|
|
regs = 0x18;
|
|
|
|
if (cmd->msg_len > 5 || cmd->msg_len < 4)
|
|
return -EINVAL;
|
|
|
|
for (i = 0; i < cmd->msg_len; i++) {
|
|
if (mb86a16_write(state, regs, cmd->msg[i]) < 0)
|
|
goto err;
|
|
|
|
regs++;
|
|
}
|
|
i += 0x90;
|
|
|
|
msleep_interruptible(10);
|
|
|
|
if (mb86a16_write(state, MB86A16_DCC1, i) < 0)
|
|
goto err;
|
|
if (mb86a16_write(state, MB86A16_DCCOUT, MB86A16_DCCOUT_DISEN) < 0)
|
|
goto err;
|
|
|
|
return 0;
|
|
|
|
err:
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
static int mb86a16_send_diseqc_burst(struct dvb_frontend *fe,
|
|
enum fe_sec_mini_cmd burst)
|
|
{
|
|
struct mb86a16_state *state = fe->demodulator_priv;
|
|
|
|
switch (burst) {
|
|
case SEC_MINI_A:
|
|
if (mb86a16_write(state, MB86A16_DCC1, MB86A16_DCC1_DISTA |
|
|
MB86A16_DCC1_TBEN |
|
|
MB86A16_DCC1_TBO) < 0)
|
|
goto err;
|
|
if (mb86a16_write(state, MB86A16_DCCOUT, MB86A16_DCCOUT_DISEN) < 0)
|
|
goto err;
|
|
break;
|
|
case SEC_MINI_B:
|
|
if (mb86a16_write(state, MB86A16_DCC1, MB86A16_DCC1_DISTA |
|
|
MB86A16_DCC1_TBEN) < 0)
|
|
goto err;
|
|
if (mb86a16_write(state, MB86A16_DCCOUT, MB86A16_DCCOUT_DISEN) < 0)
|
|
goto err;
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
err:
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
static int mb86a16_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone)
|
|
{
|
|
struct mb86a16_state *state = fe->demodulator_priv;
|
|
|
|
switch (tone) {
|
|
case SEC_TONE_ON:
|
|
if (mb86a16_write(state, MB86A16_TONEOUT2, 0x00) < 0)
|
|
goto err;
|
|
if (mb86a16_write(state, MB86A16_DCC1, MB86A16_DCC1_DISTA |
|
|
MB86A16_DCC1_CTOE) < 0)
|
|
|
|
goto err;
|
|
if (mb86a16_write(state, MB86A16_DCCOUT, MB86A16_DCCOUT_DISEN) < 0)
|
|
goto err;
|
|
break;
|
|
case SEC_TONE_OFF:
|
|
if (mb86a16_write(state, MB86A16_TONEOUT2, 0x04) < 0)
|
|
goto err;
|
|
if (mb86a16_write(state, MB86A16_DCC1, MB86A16_DCC1_DISTA) < 0)
|
|
goto err;
|
|
if (mb86a16_write(state, MB86A16_DCCOUT, 0x00) < 0)
|
|
goto err;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
|
|
err:
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
static enum dvbfe_search mb86a16_search(struct dvb_frontend *fe)
|
|
{
|
|
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
|
|
struct mb86a16_state *state = fe->demodulator_priv;
|
|
|
|
state->frequency = p->frequency / 1000;
|
|
state->srate = p->symbol_rate / 1000;
|
|
|
|
if (!mb86a16_set_fe(state)) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "Successfully acquired LOCK");
|
|
return DVBFE_ALGO_SEARCH_SUCCESS;
|
|
}
|
|
|
|
dprintk(verbose, MB86A16_ERROR, 1, "Lock acquisition failed!");
|
|
return DVBFE_ALGO_SEARCH_FAILED;
|
|
}
|
|
|
|
static void mb86a16_release(struct dvb_frontend *fe)
|
|
{
|
|
struct mb86a16_state *state = fe->demodulator_priv;
|
|
kfree(state);
|
|
}
|
|
|
|
static int mb86a16_init(struct dvb_frontend *fe)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int mb86a16_sleep(struct dvb_frontend *fe)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int mb86a16_read_ber(struct dvb_frontend *fe, u32 *ber)
|
|
{
|
|
u8 ber_mon, ber_tab, ber_lsb, ber_mid, ber_msb, ber_tim, ber_rst;
|
|
u32 timer;
|
|
|
|
struct mb86a16_state *state = fe->demodulator_priv;
|
|
|
|
*ber = 0;
|
|
if (mb86a16_read(state, MB86A16_BERMON, &ber_mon) != 2)
|
|
goto err;
|
|
if (mb86a16_read(state, MB86A16_BERTAB, &ber_tab) != 2)
|
|
goto err;
|
|
if (mb86a16_read(state, MB86A16_BERLSB, &ber_lsb) != 2)
|
|
goto err;
|
|
if (mb86a16_read(state, MB86A16_BERMID, &ber_mid) != 2)
|
|
goto err;
|
|
if (mb86a16_read(state, MB86A16_BERMSB, &ber_msb) != 2)
|
|
goto err;
|
|
/* BER monitor invalid when BER_EN = 0 */
|
|
if (ber_mon & 0x04) {
|
|
/* coarse, fast calculation */
|
|
*ber = ber_tab & 0x1f;
|
|
dprintk(verbose, MB86A16_DEBUG, 1, "BER coarse=[0x%02x]", *ber);
|
|
if (ber_mon & 0x01) {
|
|
/*
|
|
* BER_SEL = 1, The monitored BER is the estimated
|
|
* value with a Reed-Solomon decoder error amount at
|
|
* the deinterleaver output.
|
|
* monitored BER is expressed as a 20 bit output in total
|
|
*/
|
|
ber_rst = (ber_mon >> 3) & 0x03;
|
|
*ber = (((ber_msb << 8) | ber_mid) << 8) | ber_lsb;
|
|
if (ber_rst == 0)
|
|
timer = 12500000;
|
|
else if (ber_rst == 1)
|
|
timer = 25000000;
|
|
else if (ber_rst == 2)
|
|
timer = 50000000;
|
|
else /* ber_rst == 3 */
|
|
timer = 100000000;
|
|
|
|
*ber /= timer;
|
|
dprintk(verbose, MB86A16_DEBUG, 1, "BER fine=[0x%02x]", *ber);
|
|
} else {
|
|
/*
|
|
* BER_SEL = 0, The monitored BER is the estimated
|
|
* value with a Viterbi decoder error amount at the
|
|
* QPSK demodulator output.
|
|
* monitored BER is expressed as a 24 bit output in total
|
|
*/
|
|
ber_tim = (ber_mon >> 1) & 0x01;
|
|
*ber = (((ber_msb << 8) | ber_mid) << 8) | ber_lsb;
|
|
if (ber_tim == 0)
|
|
timer = 16;
|
|
else /* ber_tim == 1 */
|
|
timer = 24;
|
|
|
|
*ber /= 2 ^ timer;
|
|
dprintk(verbose, MB86A16_DEBUG, 1, "BER fine=[0x%02x]", *ber);
|
|
}
|
|
}
|
|
return 0;
|
|
err:
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
static int mb86a16_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
|
|
{
|
|
u8 agcm = 0;
|
|
struct mb86a16_state *state = fe->demodulator_priv;
|
|
|
|
*strength = 0;
|
|
if (mb86a16_read(state, MB86A16_AGCM, &agcm) != 2) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
*strength = ((0xff - agcm) * 100) / 256;
|
|
dprintk(verbose, MB86A16_DEBUG, 1, "Signal strength=[%d %%]", (u8) *strength);
|
|
*strength = (0xffff - 0xff) + agcm;
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct cnr {
|
|
u8 cn_reg;
|
|
u8 cn_val;
|
|
};
|
|
|
|
static const struct cnr cnr_tab[] = {
|
|
{ 35, 2 },
|
|
{ 40, 3 },
|
|
{ 50, 4 },
|
|
{ 60, 5 },
|
|
{ 70, 6 },
|
|
{ 80, 7 },
|
|
{ 92, 8 },
|
|
{ 103, 9 },
|
|
{ 115, 10 },
|
|
{ 138, 12 },
|
|
{ 162, 15 },
|
|
{ 180, 18 },
|
|
{ 185, 19 },
|
|
{ 189, 20 },
|
|
{ 195, 22 },
|
|
{ 199, 24 },
|
|
{ 201, 25 },
|
|
{ 202, 26 },
|
|
{ 203, 27 },
|
|
{ 205, 28 },
|
|
{ 208, 30 }
|
|
};
|
|
|
|
static int mb86a16_read_snr(struct dvb_frontend *fe, u16 *snr)
|
|
{
|
|
struct mb86a16_state *state = fe->demodulator_priv;
|
|
int i = 0;
|
|
int low_tide = 2, high_tide = 30, q_level;
|
|
u8 cn;
|
|
|
|
*snr = 0;
|
|
if (mb86a16_read(state, 0x26, &cn) != 2) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(cnr_tab); i++) {
|
|
if (cn < cnr_tab[i].cn_reg) {
|
|
*snr = cnr_tab[i].cn_val;
|
|
break;
|
|
}
|
|
}
|
|
q_level = (*snr * 100) / (high_tide - low_tide);
|
|
dprintk(verbose, MB86A16_ERROR, 1, "SNR (Quality) = [%d dB], Level=%d %%", *snr, q_level);
|
|
*snr = (0xffff - 0xff) + *snr;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mb86a16_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
|
|
{
|
|
u8 dist;
|
|
struct mb86a16_state *state = fe->demodulator_priv;
|
|
|
|
if (mb86a16_read(state, MB86A16_DISTMON, &dist) != 2) {
|
|
dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
|
|
return -EREMOTEIO;
|
|
}
|
|
*ucblocks = dist;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static enum dvbfe_algo mb86a16_frontend_algo(struct dvb_frontend *fe)
|
|
{
|
|
return DVBFE_ALGO_CUSTOM;
|
|
}
|
|
|
|
static const struct dvb_frontend_ops mb86a16_ops = {
|
|
.delsys = { SYS_DVBS },
|
|
.info = {
|
|
.name = "Fujitsu MB86A16 DVB-S",
|
|
.frequency_min_hz = 950 * MHz,
|
|
.frequency_max_hz = 2150 * MHz,
|
|
.frequency_stepsize_hz = 3 * MHz,
|
|
.symbol_rate_min = 1000000,
|
|
.symbol_rate_max = 45000000,
|
|
.symbol_rate_tolerance = 500,
|
|
.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_QPSK |
|
|
FE_CAN_FEC_AUTO
|
|
},
|
|
.release = mb86a16_release,
|
|
|
|
.get_frontend_algo = mb86a16_frontend_algo,
|
|
.search = mb86a16_search,
|
|
.init = mb86a16_init,
|
|
.sleep = mb86a16_sleep,
|
|
.read_status = mb86a16_read_status,
|
|
|
|
.read_ber = mb86a16_read_ber,
|
|
.read_signal_strength = mb86a16_read_signal_strength,
|
|
.read_snr = mb86a16_read_snr,
|
|
.read_ucblocks = mb86a16_read_ucblocks,
|
|
|
|
.diseqc_send_master_cmd = mb86a16_send_diseqc_msg,
|
|
.diseqc_send_burst = mb86a16_send_diseqc_burst,
|
|
.set_tone = mb86a16_set_tone,
|
|
};
|
|
|
|
struct dvb_frontend *mb86a16_attach(const struct mb86a16_config *config,
|
|
struct i2c_adapter *i2c_adap)
|
|
{
|
|
u8 dev_id = 0;
|
|
struct mb86a16_state *state = NULL;
|
|
|
|
state = kmalloc(sizeof(struct mb86a16_state), GFP_KERNEL);
|
|
if (state == NULL)
|
|
goto error;
|
|
|
|
state->config = config;
|
|
state->i2c_adap = i2c_adap;
|
|
|
|
mb86a16_read(state, 0x7f, &dev_id);
|
|
if (dev_id != 0xfe)
|
|
goto error;
|
|
|
|
memcpy(&state->frontend.ops, &mb86a16_ops, sizeof(struct dvb_frontend_ops));
|
|
state->frontend.demodulator_priv = state;
|
|
state->frontend.ops.set_voltage = state->config->set_voltage;
|
|
|
|
return &state->frontend;
|
|
error:
|
|
kfree(state);
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL_GPL(mb86a16_attach);
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Manu Abraham");
|