1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2009 by Rob Purchase
*
* 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.
*
****************************************************************************/
#include "pcf50635.h"
#include "i2c.h"
#include "system.h"
#define PCF50635_ADDR 0xe6
int pcf50635_write(int address, unsigned char val)
{
unsigned char data[] = { address, val };
return i2c_write(PCF50635_ADDR, data, 2);
}
int pcf50635_write_multiple(int address, const unsigned char* buf, int count)
{
int i;
for (i = 0; i < count; i++)
pcf50635_write(address + i, buf[i]);
return 0;
}
int pcf50635_read(int address)
{
unsigned char val = -1;
i2c_readmem(PCF50635_ADDR, address, &val, 1);
return val;
}
int pcf50635_read_multiple(int address, unsigned char* buf, int count)
{
return i2c_readmem(PCF50635_ADDR, address, buf, count);
}
void pcf50635_init(void)
{
#ifdef COWON_D2
static const char init_data[] =
{
/* DOWN1: 1.2V, max DVM step, enabled */
PCF5063X_REG_DOWN1OUT, 0x13,
PCF5063X_REG_DOWN1CTL, 0x1e,
PCF5063X_REG_DOWN1ENA, 0x1,
/* DOWN2: 1.8V, max DVM step, enabled */
PCF5063X_REG_DOWN2OUT, 0x2f,
PCF5063X_REG_DOWN2CTL, 0x1e,
PCF5063X_REG_DOWN2ENA, 0x1,
/* AUTO: 3.0V, enabled */
PCF5063X_REG_AUTOOUT, 0x5f,
PCF5063X_REG_AUTOENA, 0x1,
/* LDO1: 3.3V, enabled */
PCF5063X_REG_LDO1OUT, 0x18,
PCF5063X_REG_LDO1ENA, 0x1,
/* LDO2: 3.0V, enabled */
PCF5063X_REG_LDO2OUT, 0x15,
PCF5063X_REG_LDO2ENA, 0x1,
/* LDO4: 3.0V, enabled */
PCF5063X_REG_LDO4OUT, 0x15,
PCF5063X_REG_LDO4ENA, 0x1,
/* LDO5: 1.8V, enabled */
PCF5063X_REG_LDO5OUT, 0x9,
PCF5063X_REG_LDO5ENA, 0x1,
/* LDO6: 2.1V, enabled */
PCF5063X_REG_LDO6OUT, 0xc,
PCF5063X_REG_LDO6ENA, 0x1,
/* LDO3 and HCLDO disabled */
PCF5063X_REG_LDO3ENA, 0x0,
PCF5063X_REG_HCLDOENA, 0x0,
/* Disable GPIOs */
PCF5063X_REG_GPIOCTL, 0x0,
PCF5063X_REG_GPIO1CFG, 0x0,
PCF5063X_REG_GPIO2CFG, 0x0,
PCF5063X_REG_GPIO3CFG, 0x0,
/* IRQ masks (OF values in brackets) */
PCF5063X_REG_INT1M, 0xff, /* (0x8a enable alarm, usbins, adpins) */
PCF5063X_REG_INT2M, 0xff, /* (0xff all masked) */
PCF5063X_REG_INT3M, 0xff, /* (0x7f enable onkey1s) */
PCF5063X_REG_INT4M, 0xff, /* (0xfd enable lowbat) */
PCF5063X_REG_INT5M, 0xff, /* (0xff all masked) */
/* Wakeup mode */
PCF5063X_REG_OOCMODE, 0x0, /* onkey falling edge */
PCF5063X_REG_OOCCTL, 0x2, /* actphrst = phase 3 */
PCF5063X_REG_OOCWAKE, 0xc1, /* wakeup on adapter, usb, onkey */
/* Configure battery charger as per OF */
PCF5063X_REG_MBCC2, 0xa8, /* Vmax = 4.2V, Vbatcond = 2.7V, long debounce */
PCF5063X_REG_MBCC3, 0x2a, /* precharge level = 16% */
PCF5063X_REG_MBCC4, 0x94, /* fastcharge level = 58% */
PCF5063X_REG_MBCC5, 0xff, /* fastcharge level (usb) = 100% */
PCF5063X_REG_MBCC6, 0x4, /* cutoff level = 12.5% */
PCF5063X_REG_MBCC7, 0xc1, /* bat-sysImax = 2.2A, USB = 500mA */
PCF5063X_REG_BVMCTL, 0xe, /* batok level = 3.4V */
/* end marker */
0};
const char* ptr;
for (ptr = init_data; *ptr != 0; ptr += 2)
pcf50635_write(ptr[0], ptr[1]);
/* Enable automatic charging, preserving default values */
pcf50635_write(PCF5063X_REG_MBCC1,
pcf50635_read(PCF5063X_REG_MBCC1) | 7);
#endif
}
void pcf50635_read_adc(int adc, short* res1, short* res2)
{
int adcs1 = 0, adcs2 = 0, adcs3 = 0;
int level = disable_irq_save();
pcf50635_write(PCF5063X_REG_ADCC1, PCF5063X_ADCC1_ADCSTART | adc);
do {
adcs3 = pcf50635_read(PCF5063X_REG_ADCS3);
} while (!(adcs3 & PCF5063X_ADCS3_ADCRDY));
if (res1 != NULL) adcs1 = pcf50635_read(PCF5063X_REG_ADCS1);
if (res2 != NULL) adcs2 = pcf50635_read(PCF5063X_REG_ADCS2);
pcf50635_write(PCF5063X_REG_ADCC1, 0);
restore_interrupt(level);
if (res1 != NULL) *res1 = (adcs1 << 2) | (adcs3 & 3);
if (res2 != NULL) *res2 = (adcs2 << 2) | ((adcs3 & 0xC) >> 2);
}
|
