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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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7581e61d8d
Now that this field is deprecated, and core generates it for DVBv3 calls, remove it from the drivers. It also adds .delsys on the few drivers where this were missed. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
488 lines
12 KiB
C
488 lines
12 KiB
C
/*
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Driver for Philips TDA8083 based QPSK Demodulator
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Copyright (C) 2001 Convergence Integrated Media GmbH
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written by Ralph Metzler <ralph@convergence.de>
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adoption to the new DVB frontend API and diagnostic ioctl's
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by Holger Waechtler <holger@convergence.de>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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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/string.h>
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#include <linux/slab.h>
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#include <linux/jiffies.h>
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#include "dvb_frontend.h"
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#include "tda8083.h"
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struct tda8083_state {
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struct i2c_adapter* i2c;
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/* configuration settings */
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const struct tda8083_config* config;
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struct dvb_frontend frontend;
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};
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static int debug;
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#define dprintk(args...) \
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do { \
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if (debug) printk(KERN_DEBUG "tda8083: " args); \
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} while (0)
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static u8 tda8083_init_tab [] = {
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0x04, 0x00, 0x4a, 0x79, 0x04, 0x00, 0xff, 0xea,
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0x48, 0x42, 0x79, 0x60, 0x70, 0x52, 0x9a, 0x10,
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0x0e, 0x10, 0xf2, 0xa7, 0x93, 0x0b, 0x05, 0xc8,
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0x9d, 0x00, 0x42, 0x80, 0x00, 0x60, 0x40, 0x00,
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0x00, 0x75, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00
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};
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static int tda8083_writereg (struct tda8083_state* state, u8 reg, u8 data)
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{
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int ret;
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u8 buf [] = { reg, data };
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struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };
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ret = i2c_transfer(state->i2c, &msg, 1);
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if (ret != 1)
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dprintk ("%s: writereg error (reg %02x, ret == %i)\n",
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__func__, reg, ret);
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return (ret != 1) ? -1 : 0;
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}
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static int tda8083_readregs (struct tda8083_state* state, u8 reg1, u8 *b, u8 len)
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{
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int ret;
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struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = ®1, .len = 1 },
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{ .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b, .len = len } };
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ret = i2c_transfer(state->i2c, msg, 2);
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if (ret != 2)
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dprintk ("%s: readreg error (reg %02x, ret == %i)\n",
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__func__, reg1, ret);
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return ret == 2 ? 0 : -1;
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}
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static inline u8 tda8083_readreg (struct tda8083_state* state, u8 reg)
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{
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u8 val;
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tda8083_readregs (state, reg, &val, 1);
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return val;
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}
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static int tda8083_set_inversion (struct tda8083_state* state, fe_spectral_inversion_t inversion)
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{
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/* XXX FIXME: implement other modes than FEC_AUTO */
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if (inversion == INVERSION_AUTO)
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return 0;
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return -EINVAL;
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}
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static int tda8083_set_fec (struct tda8083_state* state, fe_code_rate_t fec)
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{
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if (fec == FEC_AUTO)
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return tda8083_writereg (state, 0x07, 0xff);
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if (fec >= FEC_1_2 && fec <= FEC_8_9)
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return tda8083_writereg (state, 0x07, 1 << (FEC_8_9 - fec));
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return -EINVAL;
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}
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static fe_code_rate_t tda8083_get_fec (struct tda8083_state* state)
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{
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u8 index;
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static fe_code_rate_t fec_tab [] = { FEC_8_9, FEC_1_2, FEC_2_3, FEC_3_4,
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FEC_4_5, FEC_5_6, FEC_6_7, FEC_7_8 };
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index = tda8083_readreg(state, 0x0e) & 0x07;
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return fec_tab [index];
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}
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static int tda8083_set_symbolrate (struct tda8083_state* state, u32 srate)
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{
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u32 ratio;
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u32 tmp;
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u8 filter;
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if (srate > 32000000)
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srate = 32000000;
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if (srate < 500000)
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srate = 500000;
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filter = 0;
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if (srate < 24000000)
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filter = 2;
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if (srate < 16000000)
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filter = 3;
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tmp = 31250 << 16;
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ratio = tmp / srate;
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tmp = (tmp % srate) << 8;
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ratio = (ratio << 8) + tmp / srate;
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tmp = (tmp % srate) << 8;
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ratio = (ratio << 8) + tmp / srate;
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dprintk("tda8083: ratio == %08x\n", (unsigned int) ratio);
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tda8083_writereg (state, 0x05, filter);
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tda8083_writereg (state, 0x02, (ratio >> 16) & 0xff);
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tda8083_writereg (state, 0x03, (ratio >> 8) & 0xff);
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tda8083_writereg (state, 0x04, (ratio ) & 0xff);
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tda8083_writereg (state, 0x00, 0x3c);
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tda8083_writereg (state, 0x00, 0x04);
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return 1;
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}
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static void tda8083_wait_diseqc_fifo (struct tda8083_state* state, int timeout)
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{
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unsigned long start = jiffies;
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while (jiffies - start < timeout &&
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!(tda8083_readreg(state, 0x02) & 0x80))
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{
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msleep(50);
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};
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}
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static int tda8083_set_tone (struct tda8083_state* state, fe_sec_tone_mode_t tone)
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{
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tda8083_writereg (state, 0x26, 0xf1);
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switch (tone) {
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case SEC_TONE_OFF:
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return tda8083_writereg (state, 0x29, 0x00);
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case SEC_TONE_ON:
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return tda8083_writereg (state, 0x29, 0x80);
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default:
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return -EINVAL;
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};
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}
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static int tda8083_set_voltage (struct tda8083_state* state, fe_sec_voltage_t voltage)
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{
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switch (voltage) {
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case SEC_VOLTAGE_13:
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return tda8083_writereg (state, 0x20, 0x00);
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case SEC_VOLTAGE_18:
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return tda8083_writereg (state, 0x20, 0x11);
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default:
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return -EINVAL;
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};
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}
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static int tda8083_send_diseqc_burst (struct tda8083_state* state, fe_sec_mini_cmd_t burst)
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{
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switch (burst) {
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case SEC_MINI_A:
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tda8083_writereg (state, 0x29, (5 << 2)); /* send burst A */
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break;
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case SEC_MINI_B:
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tda8083_writereg (state, 0x29, (7 << 2)); /* send B */
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break;
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default:
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return -EINVAL;
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};
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tda8083_wait_diseqc_fifo (state, 100);
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return 0;
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}
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static int tda8083_send_diseqc_msg (struct dvb_frontend* fe,
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struct dvb_diseqc_master_cmd *m)
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{
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struct tda8083_state* state = fe->demodulator_priv;
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int i;
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tda8083_writereg (state, 0x29, (m->msg_len - 3) | (1 << 2)); /* enable */
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for (i=0; i<m->msg_len; i++)
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tda8083_writereg (state, 0x23 + i, m->msg[i]);
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tda8083_writereg (state, 0x29, (m->msg_len - 3) | (3 << 2)); /* send!! */
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tda8083_wait_diseqc_fifo (state, 100);
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return 0;
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}
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static int tda8083_read_status(struct dvb_frontend* fe, fe_status_t* status)
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{
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struct tda8083_state* state = fe->demodulator_priv;
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u8 signal = ~tda8083_readreg (state, 0x01);
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u8 sync = tda8083_readreg (state, 0x02);
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*status = 0;
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if (signal > 10)
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*status |= FE_HAS_SIGNAL;
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if (sync & 0x01)
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*status |= FE_HAS_CARRIER;
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if (sync & 0x02)
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*status |= FE_HAS_VITERBI;
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if (sync & 0x10)
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*status |= FE_HAS_SYNC;
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if (sync & 0x20) /* frontend can not lock */
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*status |= FE_TIMEDOUT;
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if ((sync & 0x1f) == 0x1f)
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*status |= FE_HAS_LOCK;
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return 0;
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}
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static int tda8083_read_ber(struct dvb_frontend* fe, u32* ber)
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{
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struct tda8083_state* state = fe->demodulator_priv;
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int ret;
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u8 buf[3];
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if ((ret = tda8083_readregs(state, 0x0b, buf, sizeof(buf))))
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return ret;
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*ber = ((buf[0] & 0x1f) << 16) | (buf[1] << 8) | buf[2];
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return 0;
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}
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static int tda8083_read_signal_strength(struct dvb_frontend* fe, u16* strength)
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{
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struct tda8083_state* state = fe->demodulator_priv;
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u8 signal = ~tda8083_readreg (state, 0x01);
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*strength = (signal << 8) | signal;
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return 0;
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}
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static int tda8083_read_snr(struct dvb_frontend* fe, u16* snr)
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{
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struct tda8083_state* state = fe->demodulator_priv;
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u8 _snr = tda8083_readreg (state, 0x08);
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*snr = (_snr << 8) | _snr;
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return 0;
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}
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static int tda8083_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
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{
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struct tda8083_state* state = fe->demodulator_priv;
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*ucblocks = tda8083_readreg(state, 0x0f);
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if (*ucblocks == 0xff)
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*ucblocks = 0xffffffff;
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return 0;
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}
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static int tda8083_set_frontend(struct dvb_frontend *fe)
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{
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struct dtv_frontend_properties *p = &fe->dtv_property_cache;
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struct tda8083_state* state = fe->demodulator_priv;
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if (fe->ops.tuner_ops.set_params) {
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fe->ops.tuner_ops.set_params(fe);
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if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
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}
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tda8083_set_inversion (state, p->inversion);
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tda8083_set_fec(state, p->fec_inner);
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tda8083_set_symbolrate(state, p->symbol_rate);
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tda8083_writereg (state, 0x00, 0x3c);
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tda8083_writereg (state, 0x00, 0x04);
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return 0;
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}
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static int tda8083_get_frontend(struct dvb_frontend *fe)
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{
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struct dtv_frontend_properties *p = &fe->dtv_property_cache;
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struct tda8083_state* state = fe->demodulator_priv;
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/* FIXME: get symbolrate & frequency offset...*/
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/*p->frequency = ???;*/
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p->inversion = (tda8083_readreg (state, 0x0e) & 0x80) ?
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INVERSION_ON : INVERSION_OFF;
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p->fec_inner = tda8083_get_fec(state);
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/*p->symbol_rate = tda8083_get_symbolrate (state);*/
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return 0;
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}
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static int tda8083_sleep(struct dvb_frontend* fe)
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{
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struct tda8083_state* state = fe->demodulator_priv;
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tda8083_writereg (state, 0x00, 0x02);
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return 0;
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}
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static int tda8083_init(struct dvb_frontend* fe)
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{
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struct tda8083_state* state = fe->demodulator_priv;
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int i;
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for (i=0; i<44; i++)
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tda8083_writereg (state, i, tda8083_init_tab[i]);
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tda8083_writereg (state, 0x00, 0x3c);
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tda8083_writereg (state, 0x00, 0x04);
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return 0;
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}
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static int tda8083_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t burst)
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{
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struct tda8083_state* state = fe->demodulator_priv;
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tda8083_send_diseqc_burst (state, burst);
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tda8083_writereg (state, 0x00, 0x3c);
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tda8083_writereg (state, 0x00, 0x04);
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return 0;
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}
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static int tda8083_diseqc_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
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{
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struct tda8083_state* state = fe->demodulator_priv;
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tda8083_set_tone (state, tone);
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tda8083_writereg (state, 0x00, 0x3c);
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tda8083_writereg (state, 0x00, 0x04);
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return 0;
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}
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static int tda8083_diseqc_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage)
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{
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struct tda8083_state* state = fe->demodulator_priv;
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tda8083_set_voltage (state, voltage);
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tda8083_writereg (state, 0x00, 0x3c);
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tda8083_writereg (state, 0x00, 0x04);
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return 0;
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}
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static void tda8083_release(struct dvb_frontend* fe)
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{
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struct tda8083_state* state = fe->demodulator_priv;
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kfree(state);
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}
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static struct dvb_frontend_ops tda8083_ops;
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struct dvb_frontend* tda8083_attach(const struct tda8083_config* config,
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struct i2c_adapter* i2c)
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{
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struct tda8083_state* state = NULL;
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/* allocate memory for the internal state */
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state = kzalloc(sizeof(struct tda8083_state), GFP_KERNEL);
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if (state == NULL) goto error;
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/* setup the state */
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state->config = config;
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state->i2c = i2c;
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/* check if the demod is there */
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if ((tda8083_readreg(state, 0x00)) != 0x05) goto error;
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/* create dvb_frontend */
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memcpy(&state->frontend.ops, &tda8083_ops, sizeof(struct dvb_frontend_ops));
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state->frontend.demodulator_priv = state;
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return &state->frontend;
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error:
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kfree(state);
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return NULL;
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}
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static struct dvb_frontend_ops tda8083_ops = {
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.delsys = { SYS_DVBS },
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.info = {
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.name = "Philips TDA8083 DVB-S",
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.frequency_min = 920000, /* TDA8060 */
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.frequency_max = 2200000, /* TDA8060 */
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.frequency_stepsize = 125, /* kHz for QPSK frontends */
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/* .frequency_tolerance = ???,*/
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.symbol_rate_min = 12000000,
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.symbol_rate_max = 30000000,
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/* .symbol_rate_tolerance = ???,*/
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.caps = FE_CAN_INVERSION_AUTO |
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FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
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FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 |
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FE_CAN_FEC_7_8 | FE_CAN_FEC_8_9 | FE_CAN_FEC_AUTO |
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FE_CAN_QPSK | FE_CAN_MUTE_TS
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},
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.release = tda8083_release,
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.init = tda8083_init,
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.sleep = tda8083_sleep,
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.set_frontend = tda8083_set_frontend,
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.get_frontend = tda8083_get_frontend,
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.read_status = tda8083_read_status,
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.read_signal_strength = tda8083_read_signal_strength,
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.read_snr = tda8083_read_snr,
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.read_ber = tda8083_read_ber,
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.read_ucblocks = tda8083_read_ucblocks,
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.diseqc_send_master_cmd = tda8083_send_diseqc_msg,
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.diseqc_send_burst = tda8083_diseqc_send_burst,
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.set_tone = tda8083_diseqc_set_tone,
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.set_voltage = tda8083_diseqc_set_voltage,
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};
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
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MODULE_DESCRIPTION("Philips TDA8083 DVB-S Demodulator");
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MODULE_AUTHOR("Ralph Metzler, Holger Waechtler");
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MODULE_LICENSE("GPL");
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EXPORT_SYMBOL(tda8083_attach);
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