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12#include <linux/module.h>
13#include <linux/stat.h>
14#include <linux/init.h>
15#include <linux/kernel.h>
16#include <linux/delay.h>
17#include <linux/gpio.h>
18#include <linux/gpio-pxa.h>
19#include <linux/interrupt.h>
20#include <linux/platform_device.h>
21#include <linux/apm-emulation.h>
22
23#include <asm/irq.h>
24#include <asm/mach-types.h>
25#include <mach/hardware.h>
26
27#include <mach/spitz.h>
28#include <mach/pxa27x.h>
29#include <mach/sharpsl_pm.h>
30
31#include "generic.h"
32
33#define SHARPSL_CHARGE_ON_VOLT 0x99
34#define SHARPSL_CHARGE_ON_TEMP 0xe0
35#define SHARPSL_CHARGE_ON_ACIN_HIGH 0x9b
36#define SHARPSL_CHARGE_ON_ACIN_LOW 0x34
37#define SHARPSL_FATAL_ACIN_VOLT 182
38#define SHARPSL_FATAL_NOACIN_VOLT 170
39
40static int spitz_last_ac_status;
41
42static struct gpio spitz_charger_gpios[] = {
43 { SPITZ_GPIO_KEY_INT, GPIOF_IN, "Keyboard Interrupt" },
44 { SPITZ_GPIO_SYNC, GPIOF_IN, "Sync" },
45 { SPITZ_GPIO_AC_IN, GPIOF_IN, "Charger Detection" },
46 { SPITZ_GPIO_ADC_TEMP_ON, GPIOF_OUT_INIT_LOW, "ADC Temp On" },
47 { SPITZ_GPIO_JK_B, GPIOF_OUT_INIT_LOW, "JK B" },
48 { SPITZ_GPIO_CHRG_ON, GPIOF_OUT_INIT_LOW, "Charger On" },
49};
50
51static void spitz_charger_init(void)
52{
53 gpio_request_array(ARRAY_AND_SIZE(spitz_charger_gpios));
54}
55
56static void spitz_measure_temp(int on)
57{
58 gpio_set_value(SPITZ_GPIO_ADC_TEMP_ON, on);
59}
60
61static void spitz_charge(int on)
62{
63 if (on) {
64 if (sharpsl_pm.flags & SHARPSL_SUSPENDED) {
65 gpio_set_value(SPITZ_GPIO_JK_B, 1);
66 gpio_set_value(SPITZ_GPIO_CHRG_ON, 0);
67 } else {
68 gpio_set_value(SPITZ_GPIO_JK_B, 0);
69 gpio_set_value(SPITZ_GPIO_CHRG_ON, 0);
70 }
71 } else {
72 gpio_set_value(SPITZ_GPIO_JK_B, 0);
73 gpio_set_value(SPITZ_GPIO_CHRG_ON, 1);
74 }
75}
76
77static void spitz_discharge(int on)
78{
79 gpio_set_value(SPITZ_GPIO_JK_A, on);
80}
81
82
83
84static void spitz_discharge1(int on)
85{
86 gpio_set_value(SPITZ_GPIO_LED_GREEN, on);
87}
88
89static unsigned long gpio18_config = GPIO18_GPIO;
90
91static void spitz_presuspend(void)
92{
93 spitz_last_ac_status = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN);
94
95
96 PGSR0 = 0x00144018;
97 PGSR1 = 0x00EF0000;
98 if (machine_is_akita()) {
99 PGSR2 = 0x2121C000;
100 PGSR3 = 0x00600400;
101 } else {
102 PGSR2 = 0x0121C000;
103 PGSR3 = 0x00600000;
104 }
105
106 PGSR0 &= ~SPITZ_GPIO_G0_STROBE_BIT;
107 PGSR1 &= ~SPITZ_GPIO_G1_STROBE_BIT;
108 PGSR2 &= ~SPITZ_GPIO_G2_STROBE_BIT;
109 PGSR3 &= ~SPITZ_GPIO_G3_STROBE_BIT;
110 PGSR2 |= GPIO_bit(SPITZ_GPIO_KEY_STROBE0);
111
112 pxa2xx_mfp_config(&gpio18_config, 1);
113 gpio_request_one(18, GPIOF_OUT_INIT_HIGH, "Unknown");
114 gpio_free(18);
115
116 PRER = GPIO_bit(SPITZ_GPIO_KEY_INT);
117 PFER = GPIO_bit(SPITZ_GPIO_KEY_INT) | GPIO_bit(SPITZ_GPIO_RESET);
118 PWER = GPIO_bit(SPITZ_GPIO_KEY_INT) | GPIO_bit(SPITZ_GPIO_RESET) | PWER_RTC;
119 PKWR = GPIO_bit(SPITZ_GPIO_SYNC) | GPIO_bit(SPITZ_GPIO_KEY_INT) | GPIO_bit(SPITZ_GPIO_RESET);
120 PKSR = 0xffffffff;
121
122
123 PSLR |= PSLR_SL_ROD;
124
125
126 PCFR = PCFR_GPR_EN | PCFR_OPDE;
127}
128
129static void spitz_postsuspend(void)
130{
131}
132
133static int spitz_should_wakeup(unsigned int resume_on_alarm)
134{
135 int is_resume = 0;
136 int acin = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN);
137
138 if (spitz_last_ac_status != acin) {
139 if (acin) {
140
141 sharpsl_pm.flags |= SHARPSL_DO_OFFLINE_CHRG;
142 dev_dbg(sharpsl_pm.dev, "AC Inserted\n");
143 } else {
144
145 dev_dbg(sharpsl_pm.dev, "AC Removed\n");
146 sharpsl_pm_led(SHARPSL_LED_OFF);
147 sharpsl_pm.machinfo->charge(0);
148 sharpsl_pm.charge_mode = CHRG_OFF;
149 }
150 spitz_last_ac_status = acin;
151
152 return 0;
153 }
154
155 if (PEDR & GPIO_bit(SPITZ_GPIO_KEY_INT))
156 is_resume |= GPIO_bit(SPITZ_GPIO_KEY_INT);
157
158 if (PKSR & GPIO_bit(SPITZ_GPIO_SYNC))
159 is_resume |= GPIO_bit(SPITZ_GPIO_SYNC);
160
161 if (resume_on_alarm && (PEDR & PWER_RTC))
162 is_resume |= PWER_RTC;
163
164 dev_dbg(sharpsl_pm.dev, "is_resume: %x\n", is_resume);
165 return is_resume;
166}
167
168static unsigned long spitz_charger_wakeup(void)
169{
170 unsigned long ret;
171 ret = ((!gpio_get_value(SPITZ_GPIO_KEY_INT)
172 << GPIO_bit(SPITZ_GPIO_KEY_INT))
173 | gpio_get_value(SPITZ_GPIO_SYNC));
174 return ret;
175}
176
177unsigned long spitzpm_read_devdata(int type)
178{
179 switch (type) {
180 case SHARPSL_STATUS_ACIN:
181 return !gpio_get_value(SPITZ_GPIO_AC_IN);
182 case SHARPSL_STATUS_LOCK:
183 return gpio_get_value(sharpsl_pm.machinfo->gpio_batlock);
184 case SHARPSL_STATUS_CHRGFULL:
185 return gpio_get_value(sharpsl_pm.machinfo->gpio_batfull);
186 case SHARPSL_STATUS_FATAL:
187 return gpio_get_value(sharpsl_pm.machinfo->gpio_fatal);
188 case SHARPSL_ACIN_VOLT:
189 return sharpsl_pm_pxa_read_max1111(MAX1111_ACIN_VOLT);
190 case SHARPSL_BATT_TEMP:
191 return sharpsl_pm_pxa_read_max1111(MAX1111_BATT_TEMP);
192 case SHARPSL_BATT_VOLT:
193 default:
194 return sharpsl_pm_pxa_read_max1111(MAX1111_BATT_VOLT);
195 }
196}
197
198struct sharpsl_charger_machinfo spitz_pm_machinfo = {
199 .init = spitz_charger_init,
200 .exit = NULL,
201 .gpio_batlock = SPITZ_GPIO_BAT_COVER,
202 .gpio_acin = SPITZ_GPIO_AC_IN,
203 .gpio_batfull = SPITZ_GPIO_CHRG_FULL,
204 .batfull_irq = 1,
205 .gpio_fatal = SPITZ_GPIO_FATAL_BAT,
206 .discharge = spitz_discharge,
207 .discharge1 = spitz_discharge1,
208 .charge = spitz_charge,
209 .measure_temp = spitz_measure_temp,
210 .presuspend = spitz_presuspend,
211 .postsuspend = spitz_postsuspend,
212 .read_devdata = spitzpm_read_devdata,
213 .charger_wakeup = spitz_charger_wakeup,
214 .should_wakeup = spitz_should_wakeup,
215#if defined(CONFIG_LCD_CORGI)
216 .backlight_limit = corgi_lcd_limit_intensity,
217#endif
218 .charge_on_volt = SHARPSL_CHARGE_ON_VOLT,
219 .charge_on_temp = SHARPSL_CHARGE_ON_TEMP,
220 .charge_acin_high = SHARPSL_CHARGE_ON_ACIN_HIGH,
221 .charge_acin_low = SHARPSL_CHARGE_ON_ACIN_LOW,
222 .fatal_acin_volt = SHARPSL_FATAL_ACIN_VOLT,
223 .fatal_noacin_volt= SHARPSL_FATAL_NOACIN_VOLT,
224 .bat_levels = 40,
225 .bat_levels_noac = sharpsl_battery_levels_noac,
226 .bat_levels_acin = sharpsl_battery_levels_acin,
227 .status_high_acin = 188,
228 .status_low_acin = 178,
229 .status_high_noac = 185,
230 .status_low_noac = 175,
231};
232
233static struct platform_device *spitzpm_device;
234
235static int spitzpm_init(void)
236{
237 int ret;
238
239 if (!machine_is_spitz() && !machine_is_akita()
240 && !machine_is_borzoi())
241 return -ENODEV;
242
243 spitzpm_device = platform_device_alloc("sharpsl-pm", -1);
244 if (!spitzpm_device)
245 return -ENOMEM;
246
247 spitzpm_device->dev.platform_data = &spitz_pm_machinfo;
248 ret = platform_device_add(spitzpm_device);
249
250 if (ret)
251 platform_device_put(spitzpm_device);
252
253 return ret;
254}
255
256static void spitzpm_exit(void)
257{
258 platform_device_unregister(spitzpm_device);
259}
260
261module_init(spitzpm_init);
262module_exit(spitzpm_exit);
263
