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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/interrupt.h>
19#include <linux/platform_device.h>
20#include <linux/apm-emulation.h>
21
22#include <asm/irq.h>
23#include <asm/mach-types.h>
24#include <mach/hardware.h>
25
26#include <mach/spitz.h>
27#include <mach/pxa27x.h>
28#include <mach/sharpsl_pm.h>
29
30#include "generic.h"
31
32#define SHARPSL_CHARGE_ON_VOLT 0x99
33#define SHARPSL_CHARGE_ON_TEMP 0xe0
34#define SHARPSL_CHARGE_ON_ACIN_HIGH 0x9b
35#define SHARPSL_CHARGE_ON_ACIN_LOW 0x34
36#define SHARPSL_FATAL_ACIN_VOLT 182
37#define SHARPSL_FATAL_NOACIN_VOLT 170
38
39static int spitz_last_ac_status;
40
41static struct gpio spitz_charger_gpios[] = {
42 { SPITZ_GPIO_KEY_INT, GPIOF_IN, "Keyboard Interrupt" },
43 { SPITZ_GPIO_SYNC, GPIOF_IN, "Sync" },
44 { SPITZ_GPIO_ADC_TEMP_ON, GPIOF_OUT_INIT_LOW, "ADC Temp On" },
45 { SPITZ_GPIO_JK_B, GPIOF_OUT_INIT_LOW, "JK B" },
46 { SPITZ_GPIO_CHRG_ON, GPIOF_OUT_INIT_LOW, "Charger On" },
47};
48
49static void spitz_charger_init(void)
50{
51 gpio_request_array(ARRAY_AND_SIZE(spitz_charger_gpios));
52}
53
54static void spitz_measure_temp(int on)
55{
56 gpio_set_value(SPITZ_GPIO_ADC_TEMP_ON, on);
57}
58
59static void spitz_charge(int on)
60{
61 if (on) {
62 if (sharpsl_pm.flags & SHARPSL_SUSPENDED) {
63 gpio_set_value(SPITZ_GPIO_JK_B, 1);
64 gpio_set_value(SPITZ_GPIO_CHRG_ON, 0);
65 } else {
66 gpio_set_value(SPITZ_GPIO_JK_B, 0);
67 gpio_set_value(SPITZ_GPIO_CHRG_ON, 0);
68 }
69 } else {
70 gpio_set_value(SPITZ_GPIO_JK_B, 0);
71 gpio_set_value(SPITZ_GPIO_CHRG_ON, 1);
72 }
73}
74
75static void spitz_discharge(int on)
76{
77 gpio_set_value(SPITZ_GPIO_JK_A, on);
78}
79
80
81
82static void spitz_discharge1(int on)
83{
84 gpio_set_value(SPITZ_GPIO_LED_GREEN, on);
85}
86
87static unsigned long gpio18_config[] = {
88 GPIO18_RDY,
89 GPIO18_GPIO,
90};
91
92static void spitz_presuspend(void)
93{
94 spitz_last_ac_status = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN);
95
96
97 PGSR0 = 0x00144018;
98 PGSR1 = 0x00EF0000;
99 if (machine_is_akita()) {
100 PGSR2 = 0x2121C000;
101 PGSR3 = 0x00600400;
102 } else {
103 PGSR2 = 0x0121C000;
104 PGSR3 = 0x00600000;
105 }
106
107 PGSR0 &= ~SPITZ_GPIO_G0_STROBE_BIT;
108 PGSR1 &= ~SPITZ_GPIO_G1_STROBE_BIT;
109 PGSR2 &= ~SPITZ_GPIO_G2_STROBE_BIT;
110 PGSR3 &= ~SPITZ_GPIO_G3_STROBE_BIT;
111 PGSR2 |= GPIO_bit(SPITZ_GPIO_KEY_STROBE0);
112
113 pxa2xx_mfp_config(&gpio18_config[0], 1);
114 gpio_request_one(18, GPIOF_OUT_INIT_HIGH, "Unknown");
115 gpio_free(18);
116
117 PRER = GPIO_bit(SPITZ_GPIO_KEY_INT);
118 PFER = GPIO_bit(SPITZ_GPIO_KEY_INT) | GPIO_bit(SPITZ_GPIO_RESET);
119 PWER = GPIO_bit(SPITZ_GPIO_KEY_INT) | GPIO_bit(SPITZ_GPIO_RESET) | PWER_RTC;
120 PKWR = GPIO_bit(SPITZ_GPIO_SYNC) | GPIO_bit(SPITZ_GPIO_KEY_INT) | GPIO_bit(SPITZ_GPIO_RESET);
121 PKSR = 0xffffffff;
122
123
124 PSLR |= PSLR_SL_ROD;
125
126
127 PCFR = PCFR_GPR_EN | PCFR_OPDE;
128}
129
130static void spitz_postsuspend(void)
131{
132 pxa2xx_mfp_config(&gpio18_config[1], 1);
133}
134
135static int spitz_should_wakeup(unsigned int resume_on_alarm)
136{
137 int is_resume = 0;
138 int acin = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN);
139
140 if (spitz_last_ac_status != acin) {
141 if (acin) {
142
143 sharpsl_pm.flags |= SHARPSL_DO_OFFLINE_CHRG;
144 dev_dbg(sharpsl_pm.dev, "AC Inserted\n");
145 } else {
146
147 dev_dbg(sharpsl_pm.dev, "AC Removed\n");
148 sharpsl_pm_led(SHARPSL_LED_OFF);
149 sharpsl_pm.machinfo->charge(0);
150 sharpsl_pm.charge_mode = CHRG_OFF;
151 }
152 spitz_last_ac_status = acin;
153
154 return 0;
155 }
156
157 if (PEDR & GPIO_bit(SPITZ_GPIO_KEY_INT))
158 is_resume |= GPIO_bit(SPITZ_GPIO_KEY_INT);
159
160 if (PKSR & GPIO_bit(SPITZ_GPIO_SYNC))
161 is_resume |= GPIO_bit(SPITZ_GPIO_SYNC);
162
163 if (resume_on_alarm && (PEDR & PWER_RTC))
164 is_resume |= PWER_RTC;
165
166 dev_dbg(sharpsl_pm.dev, "is_resume: %x\n", is_resume);
167 return is_resume;
168}
169
170static unsigned long spitz_charger_wakeup(void)
171{
172 return (~GPLR0 & GPIO_bit(SPITZ_GPIO_KEY_INT)) | (GPLR0 & GPIO_bit(SPITZ_GPIO_SYNC));
173}
174
175unsigned long spitzpm_read_devdata(int type)
176{
177 switch (type) {
178 case SHARPSL_STATUS_ACIN:
179 return (((~GPLR(SPITZ_GPIO_AC_IN)) & GPIO_bit(SPITZ_GPIO_AC_IN)) != 0);
180 case SHARPSL_STATUS_LOCK:
181 return gpio_get_value(sharpsl_pm.machinfo->gpio_batlock);
182 case SHARPSL_STATUS_CHRGFULL:
183 return gpio_get_value(sharpsl_pm.machinfo->gpio_batfull);
184 case SHARPSL_STATUS_FATAL:
185 return gpio_get_value(sharpsl_pm.machinfo->gpio_fatal);
186 case SHARPSL_ACIN_VOLT:
187 return sharpsl_pm_pxa_read_max1111(MAX1111_ACIN_VOLT);
188 case SHARPSL_BATT_TEMP:
189 return sharpsl_pm_pxa_read_max1111(MAX1111_BATT_TEMP);
190 case SHARPSL_BATT_VOLT:
191 default:
192 return sharpsl_pm_pxa_read_max1111(MAX1111_BATT_VOLT);
193 }
194}
195
196struct sharpsl_charger_machinfo spitz_pm_machinfo = {
197 .init = spitz_charger_init,
198 .exit = NULL,
199 .gpio_batlock = SPITZ_GPIO_BAT_COVER,
200 .gpio_acin = SPITZ_GPIO_AC_IN,
201 .gpio_batfull = SPITZ_GPIO_CHRG_FULL,
202 .batfull_irq = 1,
203 .gpio_fatal = SPITZ_GPIO_FATAL_BAT,
204 .discharge = spitz_discharge,
205 .discharge1 = spitz_discharge1,
206 .charge = spitz_charge,
207 .measure_temp = spitz_measure_temp,
208 .presuspend = spitz_presuspend,
209 .postsuspend = spitz_postsuspend,
210 .read_devdata = spitzpm_read_devdata,
211 .charger_wakeup = spitz_charger_wakeup,
212 .should_wakeup = spitz_should_wakeup,
213#if defined(CONFIG_LCD_CORGI)
214 .backlight_limit = corgi_lcd_limit_intensity,
215#endif
216 .charge_on_volt = SHARPSL_CHARGE_ON_VOLT,
217 .charge_on_temp = SHARPSL_CHARGE_ON_TEMP,
218 .charge_acin_high = SHARPSL_CHARGE_ON_ACIN_HIGH,
219 .charge_acin_low = SHARPSL_CHARGE_ON_ACIN_LOW,
220 .fatal_acin_volt = SHARPSL_FATAL_ACIN_VOLT,
221 .fatal_noacin_volt= SHARPSL_FATAL_NOACIN_VOLT,
222 .bat_levels = 40,
223 .bat_levels_noac = sharpsl_battery_levels_noac,
224 .bat_levels_acin = sharpsl_battery_levels_acin,
225 .status_high_acin = 188,
226 .status_low_acin = 178,
227 .status_high_noac = 185,
228 .status_low_noac = 175,
229};
230
231static struct platform_device *spitzpm_device;
232
233static int __devinit spitzpm_init(void)
234{
235 int ret;
236
237 if (!machine_is_spitz() && !machine_is_akita()
238 && !machine_is_borzoi())
239 return -ENODEV;
240
241 spitzpm_device = platform_device_alloc("sharpsl-pm", -1);
242 if (!spitzpm_device)
243 return -ENOMEM;
244
245 spitzpm_device->dev.platform_data = &spitz_pm_machinfo;
246 ret = platform_device_add(spitzpm_device);
247
248 if (ret)
249 platform_device_put(spitzpm_device);
250
251 return ret;
252}
253
254static void spitzpm_exit(void)
255{
256 platform_device_unregister(spitzpm_device);
257}
258
259module_init(spitzpm_init);
260module_exit(spitzpm_exit);
261
