frontend/plat_pandora.c

   1 /*
   2  * (C) notaz, 2011
   3  *
   4  * This work is licensed under the terms of the GNU GPLv2 or later.
   5  * See the COPYING file in the top-level directory.
   6  */
   7
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <sys/types.h>
  12 #include <sys/stat.h>
  13 #include <fcntl.h>
  14 #include <sys/ioctl.h>
  15 #include <unistd.h>
  16 #include <linux/input.h>
  17 #include <errno.h>
  18
  19 #include "common/input.h"
  20 #include "plugin_lib.h"
  21 #include "plat.h"
  22 #include "main.h"
  23
  24 static int fdnub[2];
  25 static int analog_init_done;
  26
  27 static const char * const pandora_gpio_keys[KEY_MAX + 1] = {
  28         [0 ... KEY_MAX] = NULL,
  29         [KEY_UP]        = "Up",
  30         [KEY_LEFT]      = "Left",
  31         [KEY_RIGHT]     = "Right",
  32         [KEY_DOWN]      = "Down",
  33         [KEY_HOME]      = "(A)",
  34         [KEY_PAGEDOWN]  = "(X)",
  35         [KEY_END]       = "(B)",
  36         [KEY_PAGEUP]    = "(Y)",
  37         [KEY_RIGHTSHIFT]= "(L)",
  38         [KEY_RIGHTCTRL] = "(R)",
  39         [KEY_LEFTALT]   = "Start",
  40         [KEY_LEFTCTRL]  = "Select",
  41         [KEY_MENU]      = "Pandora",
  42 };
  43
  44 struct in_default_bind in_evdev_defbinds[] = {
  45         { KEY_UP,       IN_BINDTYPE_PLAYER12, DKEY_UP },
  46         { KEY_DOWN,     IN_BINDTYPE_PLAYER12, DKEY_DOWN },
  47         { KEY_LEFT,     IN_BINDTYPE_PLAYER12, DKEY_LEFT },
  48         { KEY_RIGHT,    IN_BINDTYPE_PLAYER12, DKEY_RIGHT },
  49         { KEY_PAGEUP,   IN_BINDTYPE_PLAYER12, DKEY_TRIANGLE },
  50         { KEY_PAGEDOWN, IN_BINDTYPE_PLAYER12, DKEY_CROSS },
  51         { KEY_END,      IN_BINDTYPE_PLAYER12, DKEY_CIRCLE },
  52         { KEY_HOME,     IN_BINDTYPE_PLAYER12, DKEY_SQUARE },
  53         { KEY_LEFTALT,  IN_BINDTYPE_PLAYER12, DKEY_START },
  54         { KEY_LEFTCTRL, IN_BINDTYPE_PLAYER12, DKEY_SELECT },
  55         { KEY_RIGHTSHIFT,IN_BINDTYPE_PLAYER12, DKEY_L1 },
  56         { KEY_RIGHTCTRL, IN_BINDTYPE_PLAYER12, DKEY_R1 },
  57         { KEY_Q,        IN_BINDTYPE_PLAYER12, DKEY_L2 },
  58         { KEY_P,        IN_BINDTYPE_PLAYER12, DKEY_R2 },
  59         { KEY_SPACE,    IN_BINDTYPE_EMU, SACTION_ENTER_MENU },
  60         { KEY_1,        IN_BINDTYPE_EMU, SACTION_SAVE_STATE },
  61         { KEY_2,        IN_BINDTYPE_EMU, SACTION_LOAD_STATE },
  62         { KEY_3,        IN_BINDTYPE_EMU, SACTION_PREV_SSLOT },
  63         { KEY_4,        IN_BINDTYPE_EMU, SACTION_NEXT_SSLOT },
  64         { KEY_5,        IN_BINDTYPE_EMU, SACTION_TOGGLE_FSKIP },
  65         { KEY_6,        IN_BINDTYPE_EMU, SACTION_SCREENSHOT },
  66         { 0, 0, 0 }
  67 };
  68
  69 static void analog_init(void)
  70 {
  71         int i, nub;
  72
  73         fdnub[0] = fdnub[1] = -1;
  74
  75         for (i = nub = 0; nub < 2; i++)
  76         {
  77                 long absbits[(ABS_MAX+1) / sizeof(long) / 8];
  78                 int ret, fd, support = 0;
  79                 char name[64];
  80
  81                 snprintf(name, sizeof(name), "/dev/input/event%d", i);
  82                 fd = open(name, O_RDONLY|O_NONBLOCK);
  83                 if (fd == -1) {
  84                         if (errno == EACCES)
  85                                 continue;       /* maybe we can access next one */
  86                         break;
  87                 }
  88
  89                 /* check supported events */
  90                 ret = ioctl(fd, EVIOCGBIT(0, sizeof(support)), &support);
  91                 if (ret == -1) {
  92                         printf("pandora: ioctl failed on %s\n", name);
  93                         goto skip;
  94                 }
  95
  96                 if (!(support & (1 << EV_ABS)))
  97                         goto skip;
  98
  99                 ret = ioctl(fd, EVIOCGNAME(sizeof(name)), name);
 100                 if (ret == -1 || strncmp(name, "nub", 3) != 0)
 101                         goto skip;
 102
 103                 ret = ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbits)), absbits);
 104                 if (ret == -1)
 105                         goto skip;
 106                 if ((absbits[0] & ((1 << ABS_X)|(1 << ABS_Y))) != ((1 << ABS_X)|(1 << ABS_Y)))
 107                         goto skip;
 108
 109                 printf("pandora: found analog #%d \"%s\"\n", nub, name);
 110                 fdnub[nub++] = fd;
 111                 continue;
 112
 113 skip:
 114                 close(fd);
 115         }
 116
 117         if (nub != 2)
 118                 printf("pandora: warning: not all nubs found: %d\n", nub);
 119
 120         analog_init_done = 1;
 121 }
 122
 123 void in_update_analogs(void)
 124 {
 125         int *nubp[2] = { in_a1, in_a2 };
 126         struct input_absinfo ainfo;
 127         int i, fd, v, ret;
 128
 129         if (!analog_init_done)
 130                 analog_init();
 131
 132         for (i = 0; i < 2; i++) {
 133                 fd = fdnub[i];
 134                 if (fd < 0)
 135                         continue;
 136
 137                 ret = ioctl(fd, EVIOCGABS(ABS_X), &ainfo);
 138                 if (ret == -1) {
 139                         perror("ioctl");
 140                         continue;
 141                 }
 142                 v = ainfo.value / 2 + 127;
 143                 nubp[i][0] = v < 0 ? 0 : v;
 144
 145                 ret = ioctl(fd, EVIOCGABS(ABS_Y), &ainfo);
 146                 if (ret == -1) {
 147                         perror("ioctl");
 148                         continue;
 149                 }
 150                 v = ainfo.value / 2 + 127;
 151                 nubp[i][1] = v < 0 ? 0 : v;
 152         }
 153         //printf("%4d %4d %4d %4d\n", in_a1[0], in_a1[1], in_a2[0], in_a2[1]);
 154 }
 155
 156 int plat_rescan_inputs(void)
 157 {
 158         in_probe();
 159         in_set_config(in_name_to_id("evdev:gpio-keys"), IN_CFG_KEY_NAMES,
 160                       pandora_gpio_keys, sizeof(pandora_gpio_keys));
 161
 162         return 0;
 163 }
 164
 165 static const char pnd_script_base[] = "sudo -n /usr/pandora/scripts";
 166
 167 int plat_cpu_clock_get(void)
 168 {
 169         FILE *f;
 170         int ret = 0;
 171         f = fopen("/proc/pandora/cpu_mhz_max", "r");
 172         if (f) {
 173                 fscanf(f, "%d", &ret);
 174                 fclose(f);
 175         }
 176         return ret;
 177 }
 178
 179 int plat_cpu_clock_apply(int cpu_clock)
 180 {
 181         char buf[128];
 182
 183         if (cpu_clock != 0 && cpu_clock != plat_cpu_clock_get()) {
 184                 snprintf(buf, sizeof(buf), "unset DISPLAY; echo y | %s/op_cpuspeed.sh %d",
 185                          pnd_script_base, cpu_clock);
 186                 system(buf);
 187         }
 188         return 0;
 189 }
 190
 191 int plat_get_bat_capacity(void)
 192 {
 193         FILE *f;
 194         int ret = 0;
 195         f = fopen("/sys/class/power_supply/bq27500-0/capacity", "r");
 196         if (f) {
 197                 fscanf(f, "%d", &ret);
 198                 fclose(f);
 199         }
 200         return ret;
 201 }