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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
|
/*
* Battery and Power Management code for the Sharp SL-Cxx00
*
* Copyright (c) 2005 Richard Purdie
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/module.h>
#include <linux/stat.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/apm-emulation.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <mach/sharpsl.h>
#include <mach/spitz.h>
#include <mach/pxa-regs.h>
#include <mach/pxa2xx-regs.h>
#include <mach/pxa2xx-gpio.h>
#include "sharpsl.h"
#define SHARPSL_CHARGE_ON_VOLT 0x99 /* 2.9V */
#define SHARPSL_CHARGE_ON_TEMP 0xe0 /* 2.9V */
#define SHARPSL_CHARGE_ON_ACIN_HIGH 0x9b /* 6V */
#define SHARPSL_CHARGE_ON_ACIN_LOW 0x34 /* 2V */
#define SHARPSL_FATAL_ACIN_VOLT 182 /* 3.45V */
#define SHARPSL_FATAL_NOACIN_VOLT 170 /* 3.40V */
static int spitz_last_ac_status;
static void spitz_charger_init(void)
{
pxa_gpio_mode(SPITZ_GPIO_KEY_INT | GPIO_IN);
pxa_gpio_mode(SPITZ_GPIO_SYNC | GPIO_IN);
sharpsl_pm_pxa_init();
}
static void spitz_measure_temp(int on)
{
gpio_set_value(SPITZ_GPIO_ADC_TEMP_ON, on);
}
static void spitz_charge(int on)
{
if (on) {
if (sharpsl_pm.flags & SHARPSL_SUSPENDED) {
gpio_set_value(SPITZ_GPIO_JK_B, 1);
gpio_set_value(SPITZ_GPIO_CHRG_ON, 0);
} else {
gpio_set_value(SPITZ_GPIO_JK_B, 0);
gpio_set_value(SPITZ_GPIO_CHRG_ON, 0);
}
} else {
gpio_set_value(SPITZ_GPIO_JK_B, 0);
gpio_set_value(SPITZ_GPIO_CHRG_ON, 1);
}
}
static void spitz_discharge(int on)
{
gpio_set_value(SPITZ_GPIO_JK_A, on);
}
/* HACK - For unknown reasons, accurate voltage readings are only made with a load
on the power bus which the green led on spitz provides */
static void spitz_discharge1(int on)
{
gpio_set_value(SPITZ_GPIO_LED_GREEN, on);
}
static void spitz_presuspend(void)
{
spitz_last_ac_status = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN);
/* GPIO Sleep Register */
PGSR0 = 0x00144018;
PGSR1 = 0x00EF0000;
if (machine_is_akita()) {
PGSR2 = 0x2121C000;
PGSR3 = 0x00600400;
} else {
PGSR2 = 0x0121C000;
PGSR3 = 0x00600000;
}
PGSR0 &= ~SPITZ_GPIO_G0_STROBE_BIT;
PGSR1 &= ~SPITZ_GPIO_G1_STROBE_BIT;
PGSR2 &= ~SPITZ_GPIO_G2_STROBE_BIT;
PGSR3 &= ~SPITZ_GPIO_G3_STROBE_BIT;
PGSR2 |= GPIO_bit(SPITZ_GPIO_KEY_STROBE0);
pxa_gpio_mode(GPIO18_RDY|GPIO_OUT | GPIO_DFLT_HIGH);
PRER = GPIO_bit(SPITZ_GPIO_KEY_INT);
PFER = GPIO_bit(SPITZ_GPIO_KEY_INT) | GPIO_bit(SPITZ_GPIO_RESET);
PWER = GPIO_bit(SPITZ_GPIO_KEY_INT) | GPIO_bit(SPITZ_GPIO_RESET) | PWER_RTC;
PKWR = GPIO_bit(SPITZ_GPIO_SYNC) | GPIO_bit(SPITZ_GPIO_KEY_INT) | GPIO_bit(SPITZ_GPIO_RESET);
PKSR = 0xffffffff; // clear
/* nRESET_OUT Disable */
PSLR |= PSLR_SL_ROD;
/* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
PCFR = PCFR_GPR_EN | PCFR_OPDE;
}
static void spitz_postsuspend(void)
{
pxa_gpio_mode(GPIO18_RDY_MD);
pxa_gpio_mode(10 | GPIO_IN);
}
static int spitz_should_wakeup(unsigned int resume_on_alarm)
{
int is_resume = 0;
int acin = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN);
if (spitz_last_ac_status != acin) {
if (acin) {
/* charge on */
sharpsl_pm.flags |= SHARPSL_DO_OFFLINE_CHRG;
dev_dbg(sharpsl_pm.dev, "AC Inserted\n");
} else {
/* charge off */
dev_dbg(sharpsl_pm.dev, "AC Removed\n");
sharpsl_pm_led(SHARPSL_LED_OFF);
sharpsl_pm.machinfo->charge(0);
sharpsl_pm.charge_mode = CHRG_OFF;
}
spitz_last_ac_status = acin;
/* Return to suspend as this must be what we were woken for */
return 0;
}
if (PEDR & GPIO_bit(SPITZ_GPIO_KEY_INT))
is_resume |= GPIO_bit(SPITZ_GPIO_KEY_INT);
if (PKSR & GPIO_bit(SPITZ_GPIO_SYNC))
is_resume |= GPIO_bit(SPITZ_GPIO_SYNC);
if (resume_on_alarm && (PEDR & PWER_RTC))
is_resume |= PWER_RTC;
dev_dbg(sharpsl_pm.dev, "is_resume: %x\n",is_resume);
return is_resume;
}
static unsigned long spitz_charger_wakeup(void)
{
return (~GPLR0 & GPIO_bit(SPITZ_GPIO_KEY_INT)) | (GPLR0 & GPIO_bit(SPITZ_GPIO_SYNC));
}
unsigned long spitzpm_read_devdata(int type)
{
switch(type) {
case SHARPSL_STATUS_ACIN:
return (((~GPLR(SPITZ_GPIO_AC_IN)) & GPIO_bit(SPITZ_GPIO_AC_IN)) != 0);
case SHARPSL_STATUS_LOCK:
return READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_batlock);
case SHARPSL_STATUS_CHRGFULL:
return READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_batfull);
case SHARPSL_STATUS_FATAL:
return READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_fatal);
case SHARPSL_ACIN_VOLT:
return sharpsl_pm_pxa_read_max1111(MAX1111_ACIN_VOLT);
case SHARPSL_BATT_TEMP:
return sharpsl_pm_pxa_read_max1111(MAX1111_BATT_TEMP);
case SHARPSL_BATT_VOLT:
default:
return sharpsl_pm_pxa_read_max1111(MAX1111_BATT_VOLT);
}
}
struct sharpsl_charger_machinfo spitz_pm_machinfo = {
.init = spitz_charger_init,
.exit = sharpsl_pm_pxa_remove,
.gpio_batlock = SPITZ_GPIO_BAT_COVER,
.gpio_acin = SPITZ_GPIO_AC_IN,
.gpio_batfull = SPITZ_GPIO_CHRG_FULL,
.batfull_irq = 1,
.gpio_fatal = SPITZ_GPIO_FATAL_BAT,
.discharge = spitz_discharge,
.discharge1 = spitz_discharge1,
.charge = spitz_charge,
.measure_temp = spitz_measure_temp,
.presuspend = spitz_presuspend,
.postsuspend = spitz_postsuspend,
.read_devdata = spitzpm_read_devdata,
.charger_wakeup = spitz_charger_wakeup,
.should_wakeup = spitz_should_wakeup,
#ifdef CONFIG_BACKLIGHT_CORGI
.backlight_limit = corgibl_limit_intensity,
#endif
.charge_on_volt = SHARPSL_CHARGE_ON_VOLT,
.charge_on_temp = SHARPSL_CHARGE_ON_TEMP,
.charge_acin_high = SHARPSL_CHARGE_ON_ACIN_HIGH,
.charge_acin_low = SHARPSL_CHARGE_ON_ACIN_LOW,
.fatal_acin_volt = SHARPSL_FATAL_ACIN_VOLT,
.fatal_noacin_volt= SHARPSL_FATAL_NOACIN_VOLT,
.bat_levels = 40,
.bat_levels_noac = spitz_battery_levels_noac,
.bat_levels_acin = spitz_battery_levels_acin,
.status_high_acin = 188,
.status_low_acin = 178,
.status_high_noac = 185,
.status_low_noac = 175,
};
static struct platform_device *spitzpm_device;
static int __devinit spitzpm_init(void)
{
int ret;
if (!machine_is_spitz() && !machine_is_akita()
&& !machine_is_borzoi())
return -ENODEV;
spitzpm_device = platform_device_alloc("sharpsl-pm", -1);
if (!spitzpm_device)
return -ENOMEM;
spitzpm_device->dev.platform_data = &spitz_pm_machinfo;
ret = platform_device_add(spitzpm_device);
if (ret)
platform_device_put(spitzpm_device);
return ret;
}
static void spitzpm_exit(void)
{
platform_device_unregister(spitzpm_device);
}
module_init(spitzpm_init);
module_exit(spitzpm_exit);
|
