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Diffstat (limited to 'firmware/target/hosted/agptek/button-agptek.c')
-rw-r--r--firmware/target/hosted/agptek/button-agptek.c149
1 files changed, 149 insertions, 0 deletions
diff --git a/firmware/target/hosted/agptek/button-agptek.c b/firmware/target/hosted/agptek/button-agptek.c
new file mode 100644
index 0000000000..a8b5debee5
--- /dev/null
+++ b/firmware/target/hosted/agptek/button-agptek.c
@@ -0,0 +1,149 @@
+/***************************************************************************
+ * __________ __ ___
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ *
+ * Copyright (C) 2017 Marcin Bukat
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include <poll.h>
+//#include <dir.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <linux/input.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "sysfs.h"
+#include "button.h"
+#include "button-target.h"
+#include "panic.h"
+
+#define NR_POLL_DESC 2
+static struct pollfd poll_fds[NR_POLL_DESC];
+
+static int button_map(int keycode)
+{
+ switch(keycode)
+ {
+ case KEY_LEFT:
+ return BUTTON_LEFT;
+
+ case KEY_RIGHT:
+ return BUTTON_RIGHT;
+
+ case KEY_UP:
+ return BUTTON_UP;
+
+ case KEY_DOWN:
+ return BUTTON_DOWN;
+
+ case KEY_PLAYPAUSE:
+ return BUTTON_SELECT;
+
+ case KEY_VOLUMEUP:
+ return BUTTON_VOLUP;
+
+ case KEY_VOLUMEDOWN:
+ return BUTTON_VOLDOWN;
+
+ case KEY_POWER:
+ return BUTTON_POWER;
+
+ default:
+ return 0;
+ }
+}
+
+void button_init_device(void)
+{
+ const char * const input_devs[] = {
+ "/dev/input/event0",
+ "/dev/input/event1"
+ };
+
+ for(int i = 0; i < NR_POLL_DESC; i++)
+ {
+ int fd = open(input_devs[i], O_RDWR);
+
+ if(fd < 0)
+ {
+ panicf("Cannot open input device: %s\n", input_devs[i]);
+ }
+
+ poll_fds[i].fd = fd;
+ poll_fds[i].events = POLLIN;
+ poll_fds[i].revents = 0;
+ }
+}
+
+int button_read_device(void)
+{
+ static int button_bitmap = 0;
+ struct input_event event;
+
+ /* check if there are any events pending and process them */
+ while(poll(poll_fds, NR_POLL_DESC, 0))
+ {
+ for(int i = 0; i < NR_POLL_DESC; i++)
+ {
+ /* read only if non-blocking */
+ if(poll_fds[i].revents & POLLIN)
+ {
+ int size = read(poll_fds[i].fd, &event, sizeof(event));
+ if(size == (int)sizeof(event))
+ {
+ int keycode = event.code;
+ /* event.value == 0x10000 means press
+ * event.value == 0 means release
+ */
+ bool press = event.value ? true : false;
+
+ /* map linux event code to rockbox button bitmap */
+ if(press)
+ {
+ button_bitmap |= button_map(keycode);
+ }
+ else
+ {
+ button_bitmap &= ~button_map(keycode);
+ }
+ }
+ }
+ }
+ }
+
+ return button_bitmap;
+}
+
+bool headphones_inserted(void)
+{
+ int status = 0;
+ const char * const sysfs_hp_switch = "/sys/devices/switch/headset/status";
+ sysfs_get_int(sysfs_hp_switch, &status);
+
+ return status ? true : false;
+}
+
+void button_close_device(void)
+{
+ /* close descriptors */
+ for(int i = 0; i < NR_POLL_DESC; i++)
+ {
+ close(poll_fds[i].fd);
+ }
+}
+