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Meizu: implement i2c for the meizu fmradio and update the tea5760 tuner driver
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21703 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Bertrik Sikken
parent
8d4d4610b6
commit
4e965b4b6c
5 changed files with 296 additions and 38 deletions
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@ -28,10 +28,20 @@
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#include "fmradio.h"
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#include "fmradio_i2c.h" /* physical interface driver */
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#define I2C_ADR 0xC0
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static unsigned char write_bytes[7] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
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#define I2C_ADR 0x22
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static void tea5760uk_set_clear(int byte, unsigned char bits, int set)
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static bool tuner_present = false;
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static unsigned char write_bytes[7] = {
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0x00, /* INTREG LSB */
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0x80, /* FRQSET MSB */
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0x00, /* FRQSET LSB */
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0x08, /* TNCTRL MSB */
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0xD2, /* TNCTRL LSB */
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0x00, /* TESTREG MSB */
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0x40 /* TESTREG LSB */
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};
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static void tea5760_set_clear(int byte, unsigned char bits, int set)
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{
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write_bytes[byte] &= ~bits;
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if (set)
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@ -39,58 +49,60 @@ static void tea5760uk_set_clear(int byte, unsigned char bits, int set)
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}
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/* tuner abstraction layer: set something to the tuner */
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int tea5760uk_set(int setting, int value)
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int tea5760_set(int setting, int value)
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{
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switch(setting)
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{
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case RADIO_SLEEP:
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/* init values */
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write_bytes[0] |= (1<<7); /* mute */
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#if CONFIG_TUNER_XTAL == 32768
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/* 32.768kHz, soft mute, stereo noise cancelling */
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write_bytes[3] |= (1<<4) | (1<<3) | (1<<1);
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#else
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/* soft mute, stereo noise cancelling */
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write_bytes[3] |= (1<<3) | (1<<1);
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#endif
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if (value) {
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/* sleep / standby mode */
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tea5760uk_set_clear(3, (1<<6), value);
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tea5760_set_clear(3, (1<<6), 0);
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}
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else {
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/* active mode */
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tea5760_set_clear(3, (1<<6), 1);
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/* disable hard mute */
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tea5760_set_clear(4, (1<<7), 0);
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}
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break;
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case RADIO_FREQUENCY:
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{
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int n;
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#if CONFIG_TUNER_XTAL == 32768
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/* low side injection */
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tea5760_set_clear(4, (1<<4), 0);
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n = (4 * (value - 225000) + 16384) / 32768;
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#else
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n = (4 * (value - 225000)) / 50000;
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#endif
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write_bytes[6] = (write_bytes[6] & 0xC0) | (n >> 8);
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write_bytes[7] = n;
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/* set frequency in preset mode */
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write_bytes[1] = (n >> 8) & 0x3F;
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write_bytes[2] = n;
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}
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break;
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case RADIO_SCAN_FREQUENCY:
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tea5760uk_set(RADIO_FREQUENCY, value);
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sleep(HZ/30);
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return tea5760uk_get(RADIO_TUNED);
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tea5760_set(RADIO_FREQUENCY, value);
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sleep(40*HZ/1000);
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return tea5760_get(RADIO_TUNED);
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case RADIO_MUTE:
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tea5760uk_set_clear(3, (1<<2), value);
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tea5760_set_clear(3, (1<<2), value);
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break;
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case RADIO_REGION:
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{
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const struct tea5760uk_region_data *rd =
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&tea5760uk_region_data[value];
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const struct tea5760_region_data *rd =
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&tea5760_region_data[value];
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tea5760uk_set_clear(4, (1<<1), rd->deemphasis);
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tea5760uk_set_clear(3, (1<<5), rd->band);
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break;
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tea5760_set_clear(4, (1<<1), rd->deemphasis);
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tea5760_set_clear(3, (1<<5), rd->band);
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}
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case RADIO_FORCE_MONO:
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tea5760uk_set_clear(4, (1<<3), value);
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break;
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case RADIO_FORCE_MONO:
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tea5760_set_clear(4, (1<<3), value);
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break;
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default:
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return -1;
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}
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@ -100,7 +112,7 @@ int tea5760uk_set(int setting, int value)
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}
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/* tuner abstraction layer: read something from the tuner */
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int tea5760uk_get(int setting)
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int tea5760_get(int setting)
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{
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unsigned char read_bytes[16];
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int val = -1; /* default for unsupported query */
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@ -110,7 +122,7 @@ int tea5760uk_get(int setting)
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switch(setting)
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{
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case RADIO_PRESENT:
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val = 1; /* true */
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val = tuner_present ? 1 : 0;
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break;
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case RADIO_TUNED:
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@ -130,8 +142,31 @@ int tea5760uk_get(int setting)
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return val;
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}
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void tea5760uk_dbg_info(struct tea5760uk_dbg_info *info)
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void tea5760_init(void)
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{
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fmradio_i2c_read(I2C_ADR, info->read_regs, 5);
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memcpy(info->write_regs, write_bytes, 5);
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unsigned char buf[16];
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unsigned short manid, chipid;
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/* read all registers */
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fmradio_i2c_read(I2C_ADR, buf, sizeof(buf));
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/* check device id */
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manid = (buf[12] << 8) | buf[13];
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chipid = (buf[14] << 8) | buf[15];
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if ((manid == 0x202B) && (chipid == 0x5760))
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{
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tuner_present = true;
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}
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/* write initial values */
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tea5760_set_clear(3, (1<<1), 1); /* soft mute on */
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tea5760_set_clear(3, (1<<0), 1); /* stereo noise cancellation on */
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fmradio_i2c_write(I2C_ADR, write_bytes, sizeof(write_bytes));
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}
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void tea5760_dbg_info(struct tea5760_dbg_info *info)
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{
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fmradio_i2c_read(I2C_ADR, info->read_regs, sizeof(info->read_regs));
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memcpy(info->write_regs, write_bytes, sizeof(info->write_regs));
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}
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56
firmware/export/tea5760.h
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56
firmware/export/tea5760.h
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@ -0,0 +1,56 @@
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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* Tuner header for the Philips TEA5760
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*
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* Copyright (C) 2009 Bertrik Sikken
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef _TEA5760_H_
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#define _TEA5760_H_
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#include "config.h"
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#include "tuner.h"
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#define HAVE_RADIO_REGION
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struct tea5760_region_data
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{
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unsigned char deemphasis; /* 1: 50us, 0: 75us */
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unsigned char band; /* 0: europe, 1: japan (BL in TEA spec)*/
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} __attribute__((packed));
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extern const struct tea5760_region_data tea5760_region_data[TUNER_NUM_REGIONS];
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struct tea5760_dbg_info
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{
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unsigned char read_regs[16];
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unsigned char write_regs[7];
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};
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int tea5760_set(int setting, int value);
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int tea5760_get(int setting);
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void tea5760_init(void);
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void tea5760_dbg_info(struct tea5760_dbg_info *info);
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#ifndef CONFIG_TUNER_MULTI
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#define tuner_set tea5760_set
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#define tuner_get tea5760_get
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#endif
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#endif /* _TEA5760_H_ */
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@ -96,6 +96,11 @@ extern int (*tuner_get)(int setting);
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#include "s1a0903x01.h"
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#endif
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/** Philips TEA5760 **/
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#if (CONFIG_TUNER & TEA5760)
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#include "tea5760.h"
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#endif
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/** Philips TEA5767 **/
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#if (CONFIG_TUNER & TEA5767)
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/* Ondio FM, FM Recorder, Recorder V2, iRiver h100/h300, iAudio x5 */
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146
firmware/target/arm/s5l8700/fmradio-i2c-meizu.c
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146
firmware/target/arm/s5l8700/fmradio-i2c-meizu.c
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@ -0,0 +1,146 @@
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2008 by Bertrik Sikken
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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/*
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FM radio i2c interface, allows the radio driver to talk to the tuner chip.
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It is implemented using the generic i2c driver, which does "bit-banged"
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I2C with a couple of GPIO pins.
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*/
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#include "config.h"
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#include "inttypes.h"
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#include "s5l8700.h"
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#include "generic_i2c.h"
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#include "fmradio_i2c.h"
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#define I2C_GPIO PDAT3
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#define I2C_GPIO_DIR PCON3
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#define I2C_SCL_PIN 4
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#define I2C_SDA_PIN 2
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#define SCL_DIR_MASK (3<<(4*I2C_SCL_PIN))
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#define SCL_DIR_OUT (1<<(4*I2C_SCL_PIN))
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#define SCL_DIR_IN 0
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#define SDA_DIR_MASK (3<<(4*I2C_SDA_PIN))
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#define SDA_DIR_OUT (1<<(4*I2C_SDA_PIN))
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#define SDA_DIR_IN 0
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static int fm_i2c_bus;
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static void fm_scl_hi(void)
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{
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I2C_GPIO |= 1 << I2C_SCL_PIN;
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}
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static void fm_scl_lo(void)
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{
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I2C_GPIO &= ~(1 << I2C_SCL_PIN);
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}
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static void fm_sda_hi(void)
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{
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I2C_GPIO |= 1 << I2C_SDA_PIN;
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}
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static void fm_sda_lo(void)
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{
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I2C_GPIO &= ~(1 << I2C_SDA_PIN);
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}
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static void fm_sda_input(void)
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{
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I2C_GPIO_DIR = (I2C_GPIO_DIR & ~SDA_DIR_MASK) | SDA_DIR_IN;
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}
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static void fm_sda_output(void)
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{
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I2C_GPIO_DIR = (I2C_GPIO_DIR & ~SDA_DIR_MASK) | SDA_DIR_OUT;
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}
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static void fm_scl_input(void)
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{
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I2C_GPIO_DIR = (I2C_GPIO_DIR & ~SCL_DIR_MASK) | SCL_DIR_IN;
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}
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static void fm_scl_output(void)
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{
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I2C_GPIO_DIR = (I2C_GPIO_DIR & ~SCL_DIR_MASK) | SCL_DIR_OUT;
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}
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static int fm_sda(void)
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{
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return (I2C_GPIO & (1 << I2C_SDA_PIN));
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}
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static int fm_scl(void)
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{
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return (I2C_GPIO & (1 << I2C_SCL_PIN));
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}
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/* simple and crude delay, used for all delays in the generic i2c driver */
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static void fm_delay(void)
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{
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volatile int i;
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/* this loop is uncalibrated and could use more sophistication */
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for (i = 0; i < 20; i++) {
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}
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}
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/* interface towards the generic i2c driver */
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static const struct i2c_interface fm_i2c_interface = {
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.scl_hi = fm_scl_hi,
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.scl_lo = fm_scl_lo,
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.sda_hi = fm_sda_hi,
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.sda_lo = fm_sda_lo,
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.sda_input = fm_sda_input,
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.sda_output = fm_sda_output,
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.scl_input = fm_scl_input,
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.scl_output = fm_scl_output,
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.scl = fm_scl,
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.sda = fm_sda,
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.delay_hd_sta = fm_delay,
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.delay_hd_dat = fm_delay,
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.delay_su_dat = fm_delay,
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.delay_su_sto = fm_delay,
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.delay_su_sta = fm_delay,
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.delay_thigh = fm_delay
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};
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/* initialise i2c for fmradio */
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void fmradio_i2c_init(void)
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{
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fm_i2c_bus = i2c_add_node(&fm_i2c_interface);
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}
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int fmradio_i2c_write(unsigned char address, const unsigned char* buf, int count)
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{
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return i2c_write_data(fm_i2c_bus, address, -1, buf, count);
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}
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int fmradio_i2c_read(unsigned char address, unsigned char* buf, int count)
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{
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return i2c_read_data(fm_i2c_bus, address, -1, buf, count);
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}
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@ -49,6 +49,16 @@ const unsigned char lv24020lp_region_data[TUNER_NUM_REGIONS] =
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};
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#endif /* (CONFIG_TUNER & LV24020LP) */
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#if (CONFIG_TUNER & TEA5760)
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const struct tea5760_region_data tea5760_region_data[TUNER_NUM_REGIONS] =
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{
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[REGION_EUROPE] = { 1, 0 }, /* 50uS, US/Europe band */
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[REGION_US_CANADA] = { 0, 0 }, /* 75uS, US/Europe band */
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[REGION_JAPAN] = { 1, 1 }, /* 50uS, Japanese band */
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[REGION_KOREA] = { 1, 0 }, /* 50uS, US/Europe band */
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};
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#endif /* (CONFIG_TUNER & TEA5760) */
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#if (CONFIG_TUNER & TEA5767)
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const struct tea5767_region_data tea5767_region_data[TUNER_NUM_REGIONS] =
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{
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@ -95,6 +105,12 @@ void tuner_init(void)
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lv24020lp_get,
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lv24020lp_init())
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#endif
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#if (CONFIG_TUNER & TEA5760)
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TUNER_TYPE_CASE(TEA5760,
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tea5760_set,
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tea5760_get,
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tea5760_init())
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#endif
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#if (CONFIG_TUNER & TEA5767)
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TUNER_TYPE_CASE(TEA5767,
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tea5767_set,
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