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-rw-r--r--firmware/target/arm/s5l8700/ipodnano2g/backlight-nano2g.c26
-rw-r--r--firmware/target/arm/s5l8700/ipodnano2g/pmu-nano2g.c90
-rw-r--r--firmware/target/arm/s5l8700/ipodnano2g/pmu-target.h35
-rw-r--r--firmware/target/arm/s5l8700/ipodnano2g/powermgmt-nano2g.c9
-rw-r--r--firmware/target/arm/s5l8700/ipodnano2g/rtc-nano2g.c73
5 files changed, 208 insertions, 25 deletions
diff --git a/firmware/target/arm/s5l8700/ipodnano2g/backlight-nano2g.c b/firmware/target/arm/s5l8700/ipodnano2g/backlight-nano2g.c
index fd600559c0..21ba3e0bf0 100644
--- a/firmware/target/arm/s5l8700/ipodnano2g/backlight-nano2g.c
+++ b/firmware/target/arm/s5l8700/ipodnano2g/backlight-nano2g.c
@@ -23,23 +23,9 @@
23#include "config.h" 23#include "config.h"
24#include "backlight.h" 24#include "backlight.h"
25#include "backlight-target.h" 25#include "backlight-target.h"
26#include "i2c-s5l8700.h" 26#include "pmu-target.h"
27 27
28 28
29static unsigned char bl_i2c_readbyte(int address)
30{
31 unsigned char tmp;
32
33 i2c_read(0xe6, address, 1, &tmp);
34
35 return tmp;
36}
37
38static void bl_i2c_writebyte(int address, unsigned char val)
39{
40 i2c_write(0xe6, address, 1, &val);
41}
42
43void _backlight_set_brightness(int brightness) 29void _backlight_set_brightness(int brightness)
44{ 30{
45 (void)brightness; 31 (void)brightness;
@@ -47,19 +33,19 @@ void _backlight_set_brightness(int brightness)
47 33
48void _backlight_on(void) 34void _backlight_on(void)
49{ 35{
50 bl_i2c_writebyte(0x29,1); 36 pmu_write(0x29, 1);
51} 37}
52 38
53void _backlight_off(void) 39void _backlight_off(void)
54{ 40{
55 bl_i2c_writebyte(0x29,0); 41 pmu_write(0x29, 0);
56} 42}
57 43
58bool _backlight_init(void) 44bool _backlight_init(void)
59{ 45{
60 bl_i2c_writebyte(0x2a,6); 46 pmu_write(0x2a, 6);
61 bl_i2c_writebyte(0x28,0x2e); 47 pmu_write(0x28, 0x2e);
62 bl_i2c_writebyte(0x2b,20); 48 pmu_write(0x2b, 20);
63 49
64 _backlight_on(); 50 _backlight_on();
65 51
diff --git a/firmware/target/arm/s5l8700/ipodnano2g/pmu-nano2g.c b/firmware/target/arm/s5l8700/ipodnano2g/pmu-nano2g.c
new file mode 100644
index 0000000000..7a6407e809
--- /dev/null
+++ b/firmware/target/arm/s5l8700/ipodnano2g/pmu-nano2g.c
@@ -0,0 +1,90 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright © 2008 Rafaël Carré
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21
22#include "config.h"
23#include "kernel.h"
24#include "i2c-s5l8700.h"
25
26static struct mutex pmu_adc_mutex;
27int pmu_initialized;
28
29unsigned char pmu_read(int address)
30{
31 unsigned char tmp;
32
33 i2c_read(0xe6, address, 1, &tmp);
34
35 return tmp;
36}
37
38void pmu_write(int address, unsigned char val)
39{
40 i2c_write(0xe6, address, 1, &val);
41}
42
43void pmu_read_multiple(int address, int count, unsigned char* buffer)
44{
45 i2c_read(0xe6, address, count, buffer);
46}
47
48void pmu_write_multiple(int address, int count, unsigned char* buffer)
49{
50 i2c_write(0xe6, address, count, buffer);
51}
52
53void pmu_init(void)
54{
55 if (pmu_initialized) return;
56 mutex_init(&pmu_adc_mutex);
57 pmu_initialized = 1;
58}
59
60int pmu_read_battery_voltage(void)
61{
62 int data = 0;
63 if (!pmu_initialized) pmu_init();
64 mutex_lock(&pmu_adc_mutex);
65 pmu_write(0x54, 0x05);
66 while ((data & 0x80) == 0)
67 {
68 yield();
69 data = pmu_read(0x57);
70 }
71 int millivolts = ((pmu_read(0x55) << 2) | (data & 3)) * 6;
72 mutex_unlock(&pmu_adc_mutex);
73 return millivolts;
74}
75
76int pmu_read_battery_current(void)
77{
78 int data = 0;
79 if (!pmu_initialized) pmu_init();
80 mutex_lock(&pmu_adc_mutex);
81 pmu_write(0x54, 0x25);
82 while ((data & 0x80) == 0)
83 {
84 yield();
85 data = pmu_read(0x57);
86 }
87 int milliamps = (pmu_read(0x55) << 2) | (data & 3);
88 mutex_unlock(&pmu_adc_mutex);
89 return milliamps;
90}
diff --git a/firmware/target/arm/s5l8700/ipodnano2g/pmu-target.h b/firmware/target/arm/s5l8700/ipodnano2g/pmu-target.h
new file mode 100644
index 0000000000..608a22a8eb
--- /dev/null
+++ b/firmware/target/arm/s5l8700/ipodnano2g/pmu-target.h
@@ -0,0 +1,35 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright © 2009 Michael Sparmann
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21
22#ifndef __PMU_NANO2G_H__
23#define __PMU_NANO2G_H__
24
25#include "config.h"
26
27unsigned char pmu_read(int address);
28void pmu_write(int address, unsigned char val);
29void pmu_read_multiple(int address, int count, unsigned char* buffer);
30void pmu_write_multiple(int address, int count, unsigned char* buffer);
31int pmu_read_battery_voltage(void);
32int pmu_read_battery_current(void);
33void pmu_init(void);
34
35#endif
diff --git a/firmware/target/arm/s5l8700/ipodnano2g/powermgmt-nano2g.c b/firmware/target/arm/s5l8700/ipodnano2g/powermgmt-nano2g.c
index 508995c436..937905f5f4 100644
--- a/firmware/target/arm/s5l8700/ipodnano2g/powermgmt-nano2g.c
+++ b/firmware/target/arm/s5l8700/ipodnano2g/powermgmt-nano2g.c
@@ -20,9 +20,8 @@
20 ****************************************************************************/ 20 ****************************************************************************/
21 21
22#include "config.h" 22#include "config.h"
23#include "adc.h"
24#include "adc-target.h"
25#include "powermgmt.h" 23#include "powermgmt.h"
24#include "pmu-target.h"
26 25
27const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] = 26const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
28{ 27{
@@ -52,14 +51,14 @@ const unsigned short percent_to_volt_charge[11] =
52}; 51};
53#endif /* CONFIG_CHARGING */ 52#endif /* CONFIG_CHARGING */
54 53
55/* ADC should read 0x3ff=5.12V */ 54/* ADC should read 0x3ff=6.00V */
56#define BATTERY_SCALE_FACTOR 5125 55#define BATTERY_SCALE_FACTOR 6000
57/* full-scale ADC readout (2^10) in millivolt */ 56/* full-scale ADC readout (2^10) in millivolt */
58 57
59 58
60/* Returns battery voltage from ADC [millivolts] */ 59/* Returns battery voltage from ADC [millivolts] */
61unsigned int battery_adc_voltage(void) 60unsigned int battery_adc_voltage(void)
62{ 61{
63 return 4000; 62 return pmu_read_battery_voltage();
64} 63}
65 64
diff --git a/firmware/target/arm/s5l8700/ipodnano2g/rtc-nano2g.c b/firmware/target/arm/s5l8700/ipodnano2g/rtc-nano2g.c
new file mode 100644
index 0000000000..f0975efb9f
--- /dev/null
+++ b/firmware/target/arm/s5l8700/ipodnano2g/rtc-nano2g.c
@@ -0,0 +1,73 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2002 by Linus Nielsen Feltzing, Uwe Freese, Laurent Baum
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#include "config.h"
22#include "rtc.h"
23#include "kernel.h"
24#include "system.h"
25#include "pmu-target.h"
26
27void rtc_init(void)
28{
29}
30
31int rtc_read_datetime(struct tm *tm)
32{
33 unsigned int i;
34 unsigned char buf[7];
35
36 pmu_read_multiple(0x59, sizeof(buf), buf);
37
38 for (i = 0; i < sizeof(buf); i++)
39 buf[i] = BCD2DEC(buf[i]);
40
41 tm->tm_sec = buf[0];
42 tm->tm_min = buf[1];
43 tm->tm_hour = buf[2];
44 tm->tm_wday = buf[3];
45 tm->tm_mday = buf[4];
46 tm->tm_mon = buf[5] - 1;
47 tm->tm_year = buf[6] + 100;
48
49 return 0;
50}
51
52int rtc_write_datetime(const struct tm *tm)
53{
54 unsigned int i;
55 int rc, oldlevel;
56 unsigned char buf[7];
57
58 buf[0] = tm->tm_sec;
59 buf[1] = tm->tm_min;
60 buf[2] = tm->tm_hour;
61 buf[3] = tm->tm_wday;
62 buf[4] = tm->tm_mday;
63 buf[5] = tm->tm_mon + 1;
64 buf[6] = tm->tm_year - 100;
65
66 for (i = 0; i < sizeof(buf); i++)
67 buf[i] = DEC2BCD(buf[i]);
68
69 pmu_write_multiple(0x59, sizeof(buf), buf);
70
71 return 0;
72}
73
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