pandora/plat.c

   1 /*
   2  * (C) Gražvydas "notaz" Ignotas, 2011,2012
   3  *
   4  * This work is licensed under the terms of any of these licenses
   5  * (at your option):
   6  *  - GNU GPL, version 2 or later.
   7  *  - GNU LGPL, version 2.1 or later.
   8  *  - MAME license.
   9  * See the COPYING file in the top-level directory.
  10  */
  11
  12 #include <stdio.h>
  13 #include <stdlib.h>
  14 #include <string.h>
  15 #include <sys/types.h>
  16 #include <dirent.h>
  17 #include <linux/input.h>
  18 #include <errno.h>
  19
  20 #include "../plat.h"
  21 #include "../input.h"
  22
  23 static const char * const pandora_gpio_keys[KEY_MAX + 1] = {
  24         [0 ... KEY_MAX] = NULL,
  25         [KEY_UP]        = "Up",
  26         [KEY_LEFT]      = "Left",
  27         [KEY_RIGHT]     = "Right",
  28         [KEY_DOWN]      = "Down",
  29         [KEY_HOME]      = "(A)",
  30         [KEY_PAGEDOWN]  = "(X)",
  31         [KEY_END]       = "(B)",
  32         [KEY_PAGEUP]    = "(Y)",
  33         [KEY_RIGHTSHIFT]= "(L)",
  34         [KEY_RIGHTCTRL] = "(R)",
  35         [KEY_LEFTALT]   = "Start",
  36         [KEY_LEFTCTRL]  = "Select",
  37         [KEY_MENU]      = "Pandora",
  38 };
  39
  40 static const char pnd_script_base[] = "sudo -n /usr/pandora/scripts";
  41
  42 static void scan_for_filters(void)
  43 {
  44         struct dirent *ent;
  45         int i, count = 0;
  46         char **mfilters;
  47         char buff[64];
  48         DIR *dir;
  49
  50         dir = opendir("/etc/pandora/conf/dss_fir");
  51         if (dir == NULL) {
  52                 perror("filter opendir");
  53                 return;
  54         }
  55
  56         while (1) {
  57                 errno = 0;
  58                 ent = readdir(dir);
  59                 if (ent == NULL) {
  60                         if (errno != 0)
  61                                 perror("readdir");
  62                         break;
  63                 }
  64
  65                 if (ent->d_type != DT_REG && ent->d_type != DT_LNK)
  66                         continue;
  67
  68                 count++;
  69         }
  70
  71         if (count == 0)
  72                 return;
  73
  74         mfilters = calloc(count + 1, sizeof(mfilters[0]));
  75         if (mfilters == NULL)
  76                 return;
  77
  78         rewinddir(dir);
  79         for (i = 0; (ent = readdir(dir)); ) {
  80                 size_t len;
  81
  82                 if (ent->d_type != DT_REG && ent->d_type != DT_LNK)
  83                         continue;
  84
  85                 len = strlen(ent->d_name);
  86
  87                 // skip pre-HF5 extra files
  88                 if (len >= 3 && strcmp(ent->d_name + len - 3, "_v3") == 0)
  89                         continue;
  90                 if (len >= 3 && strcmp(ent->d_name + len - 3, "_v5") == 0)
  91                         continue;
  92
  93                 // have to cut "_up_h" for pre-HF5
  94                 if (len > 5 && strcmp(ent->d_name + len - 5, "_up_h") == 0)
  95                         len -= 5;
  96
  97                 if (len > sizeof(buff) - 1)
  98                         continue;
  99
 100                 strncpy(buff, ent->d_name, len);
 101                 buff[len] = 0;
 102                 mfilters[i] = strdup(buff);
 103                 if (mfilters[i] != NULL)
 104                         i++;
 105         }
 106         closedir(dir);
 107
 108         plat_target.filters = mfilters;
 109 }
 110
 111 static void set_lcdrate(int is_pal)
 112 {
 113         static int old_pal = -1;
 114         char buf[128];
 115
 116         if (is_pal == old_pal)
 117                 return;
 118
 119         snprintf(buf, sizeof(buf), "%s/op_lcdrate.sh %d",
 120                         pnd_script_base, is_pal ? 50 : 60);
 121         system(buf);
 122         old_pal = is_pal;
 123 }
 124
 125 static void set_filter(int which)
 126 {
 127         static int old_filter = -1;
 128         char buf[128];
 129         int i;
 130
 131         if (plat_target.filters == NULL || which == old_filter)
 132                 return;
 133
 134         for (i = 0; i < which; i++)
 135                 if (plat_target.filters[i] == NULL)
 136                         return;
 137
 138         if (plat_target.filters[i] == NULL)
 139                 return;
 140
 141         snprintf(buf, sizeof(buf), "%s/op_videofir.sh %s",
 142                 pnd_script_base, plat_target.filters[i]);
 143         system(buf);
 144         old_filter = which;
 145 }
 146
 147 static int cpu_clock_get(void)
 148 {
 149         FILE *f;
 150         int ret = 0;
 151         f = fopen("/proc/pandora/cpu_mhz_max", "r");
 152         if (f) {
 153                 fscanf(f, "%d", &ret);
 154                 fclose(f);
 155         }
 156         return ret;
 157 }
 158
 159 static int cpu_clock_set(int cpu_clock)
 160 {
 161         char buf[128];
 162
 163         if (cpu_clock != 0 && cpu_clock != cpu_clock_get()) {
 164                 snprintf(buf, sizeof(buf), "unset DISPLAY; echo y | %s/op_cpuspeed.sh %d",
 165                          pnd_script_base, cpu_clock);
 166                 system(buf);
 167         }
 168         return 0;
 169 }
 170
 171 static int get_bat_capacity(void)
 172 {
 173         FILE *f;
 174         int ret = 0;
 175         f = fopen("/sys/class/power_supply/bq27500-0/capacity", "r");
 176         if (f) {
 177                 fscanf(f, "%d", &ret);
 178                 fclose(f);
 179         }
 180         return ret;
 181 }
 182
 183 struct plat_target plat_target = {
 184         cpu_clock_get,
 185         cpu_clock_set,
 186         get_bat_capacity,
 187         set_filter,
 188         NULL,
 189         set_lcdrate,
 190 };
 191
 192 int plat_target_init(void)
 193 {
 194         scan_for_filters();
 195
 196         return 0;
 197 }
 198
 199 /* to be called after in_probe */
 200 void plat_target_setup_input(void)
 201 {
 202         int gpiokeys_id;
 203
 204         gpiokeys_id = in_name_to_id("evdev:gpio-keys");
 205         in_set_config(gpiokeys_id, IN_CFG_KEY_NAMES,
 206                       pandora_gpio_keys, sizeof(pandora_gpio_keys));
 207         in_set_config(gpiokeys_id, IN_CFG_DEFAULT_DEV, NULL, 0);
 208 }
 209
 210 void plat_target_finish(void)
 211 {
 212 }