add pandora code from PCSX

[libpicofe.git] / pandora / plat.c

diff --git a/pandora/plat.c b/pandora/plat.c
new file mode 100644 (file)
index 0000000..4fff936
--- /dev/null
+++ b/pandora/plat.c
@@ -0,0 +1,212 @@
+/*
+ * (C) Gražvydas "notaz" Ignotas, 2011,2012
+ *
+ * This work is licensed under the terms of any of these licenses
+ * (at your option):
+ *  - GNU GPL, version 2 or later.
+ *  - GNU LGPL, version 2.1 or later.
+ *  - MAME license.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <linux/input.h>
+#include <errno.h>
+
+#include "../plat.h"
+#include "../input.h"
+
+static const char * const pandora_gpio_keys[KEY_MAX + 1] = {
+       [0 ... KEY_MAX] = NULL,
+       [KEY_UP]        = "Up",
+       [KEY_LEFT]      = "Left",
+       [KEY_RIGHT]     = "Right",
+       [KEY_DOWN]      = "Down",
+       [KEY_HOME]      = "(A)",
+       [KEY_PAGEDOWN]  = "(X)",
+       [KEY_END]       = "(B)",
+       [KEY_PAGEUP]    = "(Y)",
+       [KEY_RIGHTSHIFT]= "(L)",
+       [KEY_RIGHTCTRL] = "(R)",
+       [KEY_LEFTALT]   = "Start",
+       [KEY_LEFTCTRL]  = "Select",
+       [KEY_MENU]      = "Pandora",
+};
+
+static const char pnd_script_base[] = "sudo -n /usr/pandora/scripts";
+
+static void scan_for_filters(void)
+{
+       struct dirent *ent;
+       int i, count = 0;
+       char **mfilters;
+       char buff[64];
+       DIR *dir;
+
+       dir = opendir("/etc/pandora/conf/dss_fir");
+       if (dir == NULL) {
+               perror("filter opendir");
+               return;
+       }
+
+       while (1) {
+               errno = 0;
+               ent = readdir(dir);
+               if (ent == NULL) {
+                       if (errno != 0)
+                               perror("readdir");
+                       break;
+               }
+
+               if (ent->d_type != DT_REG && ent->d_type != DT_LNK)
+                       continue;
+
+               count++;
+       }
+
+       if (count == 0)
+               return;
+
+       mfilters = calloc(count + 1, sizeof(mfilters[0]));
+       if (mfilters == NULL)
+               return;
+
+       rewinddir(dir);
+       for (i = 0; (ent = readdir(dir)); ) {
+               size_t len;
+
+               if (ent->d_type != DT_REG && ent->d_type != DT_LNK)
+                       continue;
+
+               len = strlen(ent->d_name);
+
+               // skip pre-HF5 extra files
+               if (len >= 3 && strcmp(ent->d_name + len - 3, "_v3") == 0)
+                       continue;
+               if (len >= 3 && strcmp(ent->d_name + len - 3, "_v5") == 0)
+                       continue;
+
+               // have to cut "_up_h" for pre-HF5
+               if (len > 5 && strcmp(ent->d_name + len - 5, "_up_h") == 0)
+                       len -= 5;
+
+               if (len > sizeof(buff) - 1)
+                       continue;
+
+               strncpy(buff, ent->d_name, len);
+               buff[len] = 0;
+               mfilters[i] = strdup(buff);
+               if (mfilters[i] != NULL)
+                       i++;
+       }
+       closedir(dir);
+
+       plat_target.filters = mfilters;
+}
+
+static void set_lcdrate(int is_pal)
+{
+       static int old_pal = -1;
+       char buf[128];
+
+       if (is_pal == old_pal)
+               return;
+
+       snprintf(buf, sizeof(buf), "%s/op_lcdrate.sh %d",
+                       pnd_script_base, is_pal ? 50 : 60);
+       system(buf);
+       old_pal = is_pal;
+}
+
+static void set_filter(int which)
+{
+       static int old_filter = -1;
+       char buf[128];
+       int i;
+
+       if (plat_target.filters == NULL || which == old_filter)
+               return;
+
+       for (i = 0; i < which; i++)
+               if (plat_target.filters[i] == NULL)
+                       return;
+
+       if (plat_target.filters[i] == NULL)
+               return;
+
+       snprintf(buf, sizeof(buf), "%s/op_videofir.sh %s",
+               pnd_script_base, plat_target.filters[i]);
+       system(buf);
+       old_filter = which;
+}
+
+static int cpu_clock_get(void)
+{
+       FILE *f;
+       int ret = 0;
+       f = fopen("/proc/pandora/cpu_mhz_max", "r");
+       if (f) {
+               fscanf(f, "%d", &ret);
+               fclose(f);
+       }
+       return ret;
+}
+
+static int cpu_clock_set(int cpu_clock)
+{
+       char buf[128];
+
+       if (cpu_clock != 0 && cpu_clock != cpu_clock_get()) {
+               snprintf(buf, sizeof(buf), "unset DISPLAY; echo y | %s/op_cpuspeed.sh %d",
+                        pnd_script_base, cpu_clock);
+               system(buf);
+       }
+       return 0;
+}
+
+static int get_bat_capacity(void)
+{
+       FILE *f;
+       int ret = 0;
+       f = fopen("/sys/class/power_supply/bq27500-0/capacity", "r");
+       if (f) {
+               fscanf(f, "%d", &ret);
+               fclose(f);
+       }
+       return ret;
+}
+
+struct plat_target plat_target = {
+       cpu_clock_get,
+       cpu_clock_set,
+       get_bat_capacity,
+       set_filter,
+       NULL,
+       set_lcdrate,
+};
+
+int plat_target_init(void)
+{
+       scan_for_filters();
+
+       return 0;
+}
+
+/* to be called after in_probe */
+void plat_target_setup_input(void)
+{
+       int gpiokeys_id;
+
+       gpiokeys_id = in_name_to_id("evdev:gpio-keys");
+       in_set_config(gpiokeys_id, IN_CFG_KEY_NAMES,
+                     pandora_gpio_keys, sizeof(pandora_gpio_keys));
+       in_set_config(gpiokeys_id, IN_CFG_DEFAULT_DEV, NULL, 0);
+}
+
+void plat_target_finish(void)
+{
+}