add pandora code from PCSX

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)
+{
+}