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authorBertrik Sikken <bertrik@sikken.nl>2009-07-07 21:57:16 +0000
committerBertrik Sikken <bertrik@sikken.nl>2009-07-07 21:57:16 +0000
commit4e965b4b6c22a4ed206eed418c0e1b9296cc2113 (patch)
treed440a630bd43b4baab72138588bab8fa674a163b /firmware
parent8d4d4610b6814c0c4a4abe9523b4b6b2b80ac9a4 (diff)
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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
Diffstat (limited to 'firmware')
-rw-r--r--firmware/drivers/tuner/tea5760uk.c111
-rw-r--r--firmware/export/tea5760.h56
-rw-r--r--firmware/export/tuner.h5
-rw-r--r--firmware/target/arm/s5l8700/fmradio-i2c-meizu.c146
-rw-r--r--firmware/tuner.c16
5 files changed, 296 insertions, 38 deletions
diff --git a/firmware/drivers/tuner/tea5760uk.c b/firmware/drivers/tuner/tea5760uk.c
index 781e51967c..db07e20cf4 100644
--- a/firmware/drivers/tuner/tea5760uk.c
+++ b/firmware/drivers/tuner/tea5760uk.c
@@ -28,10 +28,20 @@
#include "fmradio.h"
#include "fmradio_i2c.h" /* physical interface driver */
-#define I2C_ADR 0xC0
-static unsigned char write_bytes[7] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
-
-static void tea5760uk_set_clear(int byte, unsigned char bits, int set)
+#define I2C_ADR 0x22
+
+static bool tuner_present = false;
+static unsigned char write_bytes[7] = {
+ 0x00, /* INTREG LSB */
+ 0x80, /* FRQSET MSB */
+ 0x00, /* FRQSET LSB */
+ 0x08, /* TNCTRL MSB */
+ 0xD2, /* TNCTRL LSB */
+ 0x00, /* TESTREG MSB */
+ 0x40 /* TESTREG LSB */
+};
+
+static void tea5760_set_clear(int byte, unsigned char bits, int set)
{
write_bytes[byte] &= ~bits;
if (set)
@@ -39,58 +49,60 @@ static void tea5760uk_set_clear(int byte, unsigned char bits, int set)
}
/* tuner abstraction layer: set something to the tuner */
-int tea5760uk_set(int setting, int value)
+int tea5760_set(int setting, int value)
{
switch(setting)
{
case RADIO_SLEEP:
- /* init values */
- write_bytes[0] |= (1<<7); /* mute */
-#if CONFIG_TUNER_XTAL == 32768
- /* 32.768kHz, soft mute, stereo noise cancelling */
- write_bytes[3] |= (1<<4) | (1<<3) | (1<<1);
-#else
- /* soft mute, stereo noise cancelling */
- write_bytes[3] |= (1<<3) | (1<<1);
-#endif
- /* sleep / standby mode */
- tea5760uk_set_clear(3, (1<<6), value);
+ if (value) {
+ /* sleep / standby mode */
+ tea5760_set_clear(3, (1<<6), 0);
+ }
+ else {
+ /* active mode */
+ tea5760_set_clear(3, (1<<6), 1);
+ /* disable hard mute */
+ tea5760_set_clear(4, (1<<7), 0);
+ }
break;
case RADIO_FREQUENCY:
{
int n;
-#if CONFIG_TUNER_XTAL == 32768
+
+ /* low side injection */
+ tea5760_set_clear(4, (1<<4), 0);
n = (4 * (value - 225000) + 16384) / 32768;
-#else
- n = (4 * (value - 225000)) / 50000;
-#endif
- write_bytes[6] = (write_bytes[6] & 0xC0) | (n >> 8);
- write_bytes[7] = n;
+
+ /* set frequency in preset mode */
+ write_bytes[1] = (n >> 8) & 0x3F;
+ write_bytes[2] = n;
}
break;
case RADIO_SCAN_FREQUENCY:
- tea5760uk_set(RADIO_FREQUENCY, value);
- sleep(HZ/30);
- return tea5760uk_get(RADIO_TUNED);
+ tea5760_set(RADIO_FREQUENCY, value);
+ sleep(40*HZ/1000);
+ return tea5760_get(RADIO_TUNED);
case RADIO_MUTE:
- tea5760uk_set_clear(3, (1<<2), value);
+ tea5760_set_clear(3, (1<<2), value);
break;
case RADIO_REGION:
- {
- const struct tea5760uk_region_data *rd =
- &tea5760uk_region_data[value];
+ {
+ const struct tea5760_region_data *rd =
+ &tea5760_region_data[value];
- tea5760uk_set_clear(4, (1<<1), rd->deemphasis);
- tea5760uk_set_clear(3, (1<<5), rd->band);
- break;
+ tea5760_set_clear(4, (1<<1), rd->deemphasis);
+ tea5760_set_clear(3, (1<<5), rd->band);
}
+ break;
+
case RADIO_FORCE_MONO:
- tea5760uk_set_clear(4, (1<<3), value);
+ tea5760_set_clear(4, (1<<3), value);
break;
+
default:
return -1;
}
@@ -100,7 +112,7 @@ int tea5760uk_set(int setting, int value)
}
/* tuner abstraction layer: read something from the tuner */
-int tea5760uk_get(int setting)
+int tea5760_get(int setting)
{
unsigned char read_bytes[16];
int val = -1; /* default for unsupported query */
@@ -110,7 +122,7 @@ int tea5760uk_get(int setting)
switch(setting)
{
case RADIO_PRESENT:
- val = 1; /* true */
+ val = tuner_present ? 1 : 0;
break;
case RADIO_TUNED:
@@ -130,8 +142,31 @@ int tea5760uk_get(int setting)
return val;
}
-void tea5760uk_dbg_info(struct tea5760uk_dbg_info *info)
+void tea5760_init(void)
{
- fmradio_i2c_read(I2C_ADR, info->read_regs, 5);
- memcpy(info->write_regs, write_bytes, 5);
+ unsigned char buf[16];
+ unsigned short manid, chipid;
+
+ /* read all registers */
+ fmradio_i2c_read(I2C_ADR, buf, sizeof(buf));
+
+ /* check device id */
+ manid = (buf[12] << 8) | buf[13];
+ chipid = (buf[14] << 8) | buf[15];
+ if ((manid == 0x202B) && (chipid == 0x5760))
+ {
+ tuner_present = true;
+ }
+
+ /* write initial values */
+ tea5760_set_clear(3, (1<<1), 1); /* soft mute on */
+ tea5760_set_clear(3, (1<<0), 1); /* stereo noise cancellation on */
+ fmradio_i2c_write(I2C_ADR, write_bytes, sizeof(write_bytes));
}
+
+void tea5760_dbg_info(struct tea5760_dbg_info *info)
+{
+ fmradio_i2c_read(I2C_ADR, info->read_regs, sizeof(info->read_regs));
+ memcpy(info->write_regs, write_bytes, sizeof(info->write_regs));
+}
+
diff --git a/firmware/export/tea5760.h b/firmware/export/tea5760.h
new file mode 100644
index 0000000000..8fa54dfa78
--- /dev/null
+++ b/firmware/export/tea5760.h
@@ -0,0 +1,56 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ * Tuner header for the Philips TEA5760
+ *
+ * Copyright (C) 2009 Bertrik Sikken
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#ifndef _TEA5760_H_
+#define _TEA5760_H_
+
+#include "config.h"
+#include "tuner.h"
+
+#define HAVE_RADIO_REGION
+
+struct tea5760_region_data
+{
+ unsigned char deemphasis; /* 1: 50us, 0: 75us */
+ unsigned char band; /* 0: europe, 1: japan (BL in TEA spec)*/
+} __attribute__((packed));
+
+extern const struct tea5760_region_data tea5760_region_data[TUNER_NUM_REGIONS];
+
+struct tea5760_dbg_info
+{
+ unsigned char read_regs[16];
+ unsigned char write_regs[7];
+};
+
+int tea5760_set(int setting, int value);
+int tea5760_get(int setting);
+void tea5760_init(void);
+void tea5760_dbg_info(struct tea5760_dbg_info *info);
+
+#ifndef CONFIG_TUNER_MULTI
+#define tuner_set tea5760_set
+#define tuner_get tea5760_get
+#endif
+
+#endif /* _TEA5760_H_ */
+
diff --git a/firmware/export/tuner.h b/firmware/export/tuner.h
index 6d6a690d77..f92e94269c 100644
--- a/firmware/export/tuner.h
+++ b/firmware/export/tuner.h
@@ -96,6 +96,11 @@ extern int (*tuner_get)(int setting);
#include "s1a0903x01.h"
#endif
+/** Philips TEA5760 **/
+#if (CONFIG_TUNER & TEA5760)
+#include "tea5760.h"
+#endif
+
/** Philips TEA5767 **/
#if (CONFIG_TUNER & TEA5767)
/* Ondio FM, FM Recorder, Recorder V2, iRiver h100/h300, iAudio x5 */
diff --git a/firmware/target/arm/s5l8700/fmradio-i2c-meizu.c b/firmware/target/arm/s5l8700/fmradio-i2c-meizu.c
new file mode 100644
index 0000000000..5a4113a6a5
--- /dev/null
+++ b/firmware/target/arm/s5l8700/fmradio-i2c-meizu.c
@@ -0,0 +1,146 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2008 by Bertrik Sikken
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+/*
+ FM radio i2c interface, allows the radio driver to talk to the tuner chip.
+
+ It is implemented using the generic i2c driver, which does "bit-banged"
+ I2C with a couple of GPIO pins.
+ */
+
+#include "config.h"
+
+#include "inttypes.h"
+#include "s5l8700.h"
+#include "generic_i2c.h"
+#include "fmradio_i2c.h"
+
+#define I2C_GPIO PDAT3
+#define I2C_GPIO_DIR PCON3
+#define I2C_SCL_PIN 4
+#define I2C_SDA_PIN 2
+
+#define SCL_DIR_MASK (3<<(4*I2C_SCL_PIN))
+#define SCL_DIR_OUT (1<<(4*I2C_SCL_PIN))
+#define SCL_DIR_IN 0
+#define SDA_DIR_MASK (3<<(4*I2C_SDA_PIN))
+#define SDA_DIR_OUT (1<<(4*I2C_SDA_PIN))
+#define SDA_DIR_IN 0
+
+static int fm_i2c_bus;
+
+static void fm_scl_hi(void)
+{
+ I2C_GPIO |= 1 << I2C_SCL_PIN;
+}
+
+static void fm_scl_lo(void)
+{
+ I2C_GPIO &= ~(1 << I2C_SCL_PIN);
+}
+
+static void fm_sda_hi(void)
+{
+ I2C_GPIO |= 1 << I2C_SDA_PIN;
+}
+
+static void fm_sda_lo(void)
+{
+ I2C_GPIO &= ~(1 << I2C_SDA_PIN);
+}
+
+static void fm_sda_input(void)
+{
+ I2C_GPIO_DIR = (I2C_GPIO_DIR & ~SDA_DIR_MASK) | SDA_DIR_IN;
+}
+
+static void fm_sda_output(void)
+{
+ I2C_GPIO_DIR = (I2C_GPIO_DIR & ~SDA_DIR_MASK) | SDA_DIR_OUT;
+}
+
+static void fm_scl_input(void)
+{
+ I2C_GPIO_DIR = (I2C_GPIO_DIR & ~SCL_DIR_MASK) | SCL_DIR_IN;
+}
+
+static void fm_scl_output(void)
+{
+ I2C_GPIO_DIR = (I2C_GPIO_DIR & ~SCL_DIR_MASK) | SCL_DIR_OUT;
+}
+
+static int fm_sda(void)
+{
+ return (I2C_GPIO & (1 << I2C_SDA_PIN));
+}
+
+static int fm_scl(void)
+{
+ return (I2C_GPIO & (1 << I2C_SCL_PIN));
+}
+
+/* simple and crude delay, used for all delays in the generic i2c driver */
+static void fm_delay(void)
+{
+ volatile int i;
+
+ /* this loop is uncalibrated and could use more sophistication */
+ for (i = 0; i < 20; i++) {
+ }
+}
+
+/* interface towards the generic i2c driver */
+static const struct i2c_interface fm_i2c_interface = {
+ .scl_hi = fm_scl_hi,
+ .scl_lo = fm_scl_lo,
+ .sda_hi = fm_sda_hi,
+ .sda_lo = fm_sda_lo,
+ .sda_input = fm_sda_input,
+ .sda_output = fm_sda_output,
+ .scl_input = fm_scl_input,
+ .scl_output = fm_scl_output,
+ .scl = fm_scl,
+ .sda = fm_sda,
+
+ .delay_hd_sta = fm_delay,
+ .delay_hd_dat = fm_delay,
+ .delay_su_dat = fm_delay,
+ .delay_su_sto = fm_delay,
+ .delay_su_sta = fm_delay,
+ .delay_thigh = fm_delay
+};
+
+/* initialise i2c for fmradio */
+void fmradio_i2c_init(void)
+{
+ fm_i2c_bus = i2c_add_node(&fm_i2c_interface);
+}
+
+int fmradio_i2c_write(unsigned char address, const unsigned char* buf, int count)
+{
+ return i2c_write_data(fm_i2c_bus, address, -1, buf, count);
+}
+
+int fmradio_i2c_read(unsigned char address, unsigned char* buf, int count)
+{
+ return i2c_read_data(fm_i2c_bus, address, -1, buf, count);
+}
+
diff --git a/firmware/tuner.c b/firmware/tuner.c
index c5da27079c..a471c4e970 100644
--- a/firmware/tuner.c
+++ b/firmware/tuner.c
@@ -49,6 +49,16 @@ const unsigned char lv24020lp_region_data[TUNER_NUM_REGIONS] =
};
#endif /* (CONFIG_TUNER & LV24020LP) */
+#if (CONFIG_TUNER & TEA5760)
+const struct tea5760_region_data tea5760_region_data[TUNER_NUM_REGIONS] =
+{
+ [REGION_EUROPE] = { 1, 0 }, /* 50uS, US/Europe band */
+ [REGION_US_CANADA] = { 0, 0 }, /* 75uS, US/Europe band */
+ [REGION_JAPAN] = { 1, 1 }, /* 50uS, Japanese band */
+ [REGION_KOREA] = { 1, 0 }, /* 50uS, US/Europe band */
+};
+#endif /* (CONFIG_TUNER & TEA5760) */
+
#if (CONFIG_TUNER & TEA5767)
const struct tea5767_region_data tea5767_region_data[TUNER_NUM_REGIONS] =
{
@@ -95,6 +105,12 @@ void tuner_init(void)
lv24020lp_get,
lv24020lp_init())
#endif
+ #if (CONFIG_TUNER & TEA5760)
+ TUNER_TYPE_CASE(TEA5760,
+ tea5760_set,
+ tea5760_get,
+ tea5760_init())
+ #endif
#if (CONFIG_TUNER & TEA5767)
TUNER_TYPE_CASE(TEA5767,
tea5767_set,