aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-sa1100/collie_pm.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-sa1100/collie_pm.c')
-rw-r--r--arch/arm/mach-sa1100/collie_pm.c296
1 files changed, 0 insertions, 296 deletions
diff --git a/arch/arm/mach-sa1100/collie_pm.c b/arch/arm/mach-sa1100/collie_pm.c
deleted file mode 100644
index 444f266ecc06..000000000000
--- a/arch/arm/mach-sa1100/collie_pm.c
+++ /dev/null
@@ -1,296 +0,0 @@
1/*
2 * Based on spitz_pm.c and sharp code.
3 *
4 * Copyright (C) 2001 SHARP
5 * Copyright 2005 Pavel Machek <pavel@suse.cz>
6 *
7 * Distribute under GPLv2.
8 *
9 * Li-ion batteries are angry beasts, and they like to explode. This driver is not finished,
10 * and sometimes charges them when it should not. If it makes angry lithium to come your way...
11 * ...well, you have been warned.
12 *
13 * Actually, this should be quite safe, it seems sharp leaves charger enabled by default,
14 * and my collie did not explode (yet).
15 */
16
17#include <linux/module.h>
18#include <linux/stat.h>
19#include <linux/init.h>
20#include <linux/kernel.h>
21#include <linux/delay.h>
22#include <linux/interrupt.h>
23#include <linux/device.h>
24#include <linux/platform_device.h>
25#include <linux/gpio.h>
26
27#include <asm/irq.h>
28#include <mach/hardware.h>
29#include <asm/hardware/scoop.h>
30#include <mach/dma.h>
31#include <mach/collie.h>
32#include <asm/mach/sharpsl_param.h>
33#include <asm/hardware/sharpsl_pm.h>
34
35#include "../drivers/mfd/ucb1x00.h"
36
37static struct ucb1x00 *ucb;
38static int ad_revise;
39
40#define ADCtoPower(x) ((330 * x * 2) / 1024)
41
42static void collie_charger_init(void)
43{
44 int err;
45
46 if (sharpsl_param.adadj != -1)
47 ad_revise = sharpsl_param.adadj;
48
49 /* Register interrupt handler. */
50 if ((err = request_irq(COLLIE_IRQ_GPIO_AC_IN, sharpsl_ac_isr, IRQF_DISABLED,
51 "ACIN", sharpsl_ac_isr))) {
52 printk("Could not get irq %d.\n", COLLIE_IRQ_GPIO_AC_IN);
53 return;
54 }
55 if ((err = request_irq(COLLIE_IRQ_GPIO_CO, sharpsl_chrg_full_isr, IRQF_DISABLED,
56 "CO", sharpsl_chrg_full_isr))) {
57 free_irq(COLLIE_IRQ_GPIO_AC_IN, sharpsl_ac_isr);
58 printk("Could not get irq %d.\n", COLLIE_IRQ_GPIO_CO);
59 return;
60 }
61
62 gpio_request(COLLIE_GPIO_CHARGE_ON, "charge on");
63 gpio_direction_output(COLLIE_GPIO_CHARGE_ON, 1);
64
65 ucb1x00_io_set_dir(ucb, 0, COLLIE_TC35143_GPIO_MBAT_ON | COLLIE_TC35143_GPIO_TMP_ON |
66 COLLIE_TC35143_GPIO_BBAT_ON);
67 return;
68}
69
70static void collie_measure_temp(int on)
71{
72 if (on)
73 ucb1x00_io_write(ucb, COLLIE_TC35143_GPIO_TMP_ON, 0);
74 else
75 ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_TMP_ON);
76}
77
78static void collie_charge(int on)
79{
80 /* Zaurus seems to contain LTC1731; it should know when to
81 * stop charging itself, so setting charge on should be
82 * relatively harmless (as long as it is not done too often).
83 */
84 gpio_set_value(COLLIE_GPIO_CHARGE_ON, on);
85}
86
87static void collie_discharge(int on)
88{
89}
90
91static void collie_discharge1(int on)
92{
93}
94
95static void collie_presuspend(void)
96{
97}
98
99static void collie_postsuspend(void)
100{
101}
102
103static int collie_should_wakeup(unsigned int resume_on_alarm)
104{
105 return 0;
106}
107
108static unsigned long collie_charger_wakeup(void)
109{
110 return 0;
111}
112
113int collie_read_backup_battery(void)
114{
115 int voltage;
116
117 ucb1x00_adc_enable(ucb);
118
119 ucb1x00_io_write(ucb, COLLIE_TC35143_GPIO_BBAT_ON, 0);
120 voltage = ucb1x00_adc_read(ucb, UCB_ADC_INP_AD1, UCB_SYNC);
121
122 ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_BBAT_ON);
123 ucb1x00_adc_disable(ucb);
124
125 printk("Backup battery = %d(%d)\n", ADCtoPower(voltage), voltage);
126
127 return ADCtoPower(voltage);
128}
129
130int collie_read_main_battery(void)
131{
132 int voltage, voltage_rev, voltage_volts;
133
134 ucb1x00_adc_enable(ucb);
135 ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_BBAT_ON);
136 ucb1x00_io_write(ucb, COLLIE_TC35143_GPIO_MBAT_ON, 0);
137
138 mdelay(1);
139 voltage = ucb1x00_adc_read(ucb, UCB_ADC_INP_AD1, UCB_SYNC);
140
141 ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_MBAT_ON);
142 ucb1x00_adc_disable(ucb);
143
144 voltage_rev = voltage + ((ad_revise * voltage) / 652);
145 voltage_volts = ADCtoPower(voltage_rev);
146
147 printk("Main battery = %d(%d)\n", voltage_volts, voltage);
148
149 if (voltage != -1)
150 return voltage_volts;
151 else
152 return voltage;
153}
154
155int collie_read_temp(void)
156{
157 int voltage;
158
159 /* According to Sharp, temp must be > 973, main battery must be < 465,
160 FIXME: sharpsl_pm.c has both conditions negated? FIXME: values
161 are way out of range? */
162
163 ucb1x00_adc_enable(ucb);
164 ucb1x00_io_write(ucb, COLLIE_TC35143_GPIO_TMP_ON, 0);
165 /* >1010 = battery removed, 460 = 22C ?, higher = lower temp ? */
166 voltage = ucb1x00_adc_read(ucb, UCB_ADC_INP_AD0, UCB_SYNC);
167 ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_TMP_ON);
168 ucb1x00_adc_disable(ucb);
169
170 printk("Battery temp = %d\n", voltage);
171 return voltage;
172}
173
174static unsigned long read_devdata(int which)
175{
176 switch (which) {
177 case SHARPSL_BATT_VOLT:
178 return collie_read_main_battery();
179 case SHARPSL_BATT_TEMP:
180 return collie_read_temp();
181 case SHARPSL_ACIN_VOLT:
182 return 500;
183 case SHARPSL_STATUS_ACIN: {
184 int ret = GPLR & COLLIE_GPIO_AC_IN;
185 printk("AC status = %d\n", ret);
186 return ret;
187 }
188 case SHARPSL_STATUS_FATAL: {
189 int ret = GPLR & COLLIE_GPIO_MAIN_BAT_LOW;
190 printk("Fatal bat = %d\n", ret);
191 return ret;
192 }
193 default:
194 return ~0;
195 }
196}
197
198struct battery_thresh collie_battery_levels_acin[] = {
199 { 420, 100},
200 { 417, 95},
201 { 415, 90},
202 { 413, 80},
203 { 411, 75},
204 { 408, 70},
205 { 406, 60},
206 { 403, 50},
207 { 398, 40},
208 { 391, 25},
209 { 10, 5},
210 { 0, 0},
211};
212
213struct battery_thresh collie_battery_levels[] = {
214 { 394, 100},
215 { 390, 95},
216 { 380, 90},
217 { 370, 80},
218 { 368, 75}, /* From sharp code: battery high with frontlight */
219 { 366, 70}, /* 60..90 -- fake values invented by me for testing */
220 { 364, 60},
221 { 362, 50},
222 { 360, 40},
223 { 358, 25}, /* From sharp code: battery low with frontlight */
224 { 356, 5}, /* From sharp code: battery verylow with frontlight */
225 { 0, 0},
226};
227
228struct sharpsl_charger_machinfo collie_pm_machinfo = {
229 .init = collie_charger_init,
230 .read_devdata = read_devdata,
231 .discharge = collie_discharge,
232 .discharge1 = collie_discharge1,
233 .charge = collie_charge,
234 .measure_temp = collie_measure_temp,
235 .presuspend = collie_presuspend,
236 .postsuspend = collie_postsuspend,
237 .charger_wakeup = collie_charger_wakeup,
238 .should_wakeup = collie_should_wakeup,
239 .bat_levels = 12,
240 .bat_levels_noac = collie_battery_levels,
241 .bat_levels_acin = collie_battery_levels_acin,
242 .status_high_acin = 368,
243 .status_low_acin = 358,
244 .status_high_noac = 368,
245 .status_low_noac = 358,
246 .charge_on_volt = 350, /* spitz uses 2.90V, but lets play it safe. */
247 .charge_on_temp = 550,
248 .charge_acin_high = 550, /* collie does not seem to have sensor for this, anyway */
249 .charge_acin_low = 450, /* ignored, too */
250 .fatal_acin_volt = 356,
251 .fatal_noacin_volt = 356,
252
253 .batfull_irq = 1, /* We do not want periodical charge restarts */
254};
255
256static int __init collie_pm_ucb_add(struct ucb1x00_dev *pdev)
257{
258 sharpsl_pm.machinfo = &collie_pm_machinfo;
259 ucb = pdev->ucb;
260 return 0;
261}
262
263static struct ucb1x00_driver collie_pm_ucb_driver = {
264 .add = collie_pm_ucb_add,
265};
266
267static struct platform_device *collie_pm_device;
268
269static int __init collie_pm_init(void)
270{
271 int ret;
272
273 collie_pm_device = platform_device_alloc("sharpsl-pm", -1);
274 if (!collie_pm_device)
275 return -ENOMEM;
276
277 collie_pm_device->dev.platform_data = &collie_pm_machinfo;
278 ret = platform_device_add(collie_pm_device);
279
280 if (ret)
281 platform_device_put(collie_pm_device);
282
283 if (!ret)
284 ret = ucb1x00_register_driver(&collie_pm_ucb_driver);
285
286 return ret;
287}
288
289static void __exit collie_pm_exit(void)
290{
291 ucb1x00_unregister_driver(&collie_pm_ucb_driver);
292 platform_device_unregister(collie_pm_device);
293}
294
295module_init(collie_pm_init);
296module_exit(collie_pm_exit);
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-18 11:04:03 -0500