1 files changed, 114 insertions, 0 deletions
diff --git a/target/linux/adm8668/files/arch/mips/adm8668/proc.c b/target/linux/adm8668/files/arch/mips/adm8668/proc.c
new file mode 100644
index 000000000..77dbb1faf
--- /dev/null
+++ b/target/linux/adm8668/files/arch/mips/adm8668/proc.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2010 Scott Nicholas <neutronscott@scottn.us>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <asm/uaccess.h>
+#include <adm8668.h>
+
+int adm8668_sesled_write_proc(struct file *file, const char *buffer, unsigned long count, void *data)
+{
+	char buf[8];
+	int num;
+
+	num = (count < 8) ? count : 8;
+
+	if (copy_from_user(buf, buffer, num))
+	{
+		printk("copy_from_user failed");
+                return -EFAULT;
+	}
+	num = simple_strtoul(buf, NULL, 16);
+	switch (num)
+	{
+		case 0:
+			GPIO_SET_LOW(0);
+			CRGPIO_SET_LOW(2);
+			break;
+		case 1:
+			GPIO_SET_LOW(0);
+			CRGPIO_SET_HI(2);
+			break;
+		case 2:
+			GPIO_SET_HI(0);
+			CRGPIO_SET_HI(2);
+			break;
+		default:
+			break;
+	}
+
+	return count;
+}
+
+int adm8668_sesled_read_proc(char *buf, char **start, off_t offset, int count, int *eof, void *data)
+{
+	int len = 0;
+	int led_state = 0;
+
+	led_state = (ADM8668_CONFIG_REG(CRGPIO_REG) & 0x100) ? 1 : 0;
+	led_state += (ADM8668_WLAN_REG(GPIO_REG) & 0x40) ? 2 : 0;
+	len += sprintf(buf+len, "%s\n",
+		(led_state&1) ?
+			((led_state&2) ? "ORANGE" : "GREEN") : "OFF");
+
+	return len;
+}
+
+int adm8668_button_read_proc(char *buf, char **start, off_t offset,
+	int count, int *eof, void *data)
+{
+	int len = 0;
+	int read_once = ADM8668_CONFIG_REG(CRGPIO_REG);
+	int button_flip = (read_once >> 20) & 0x3;
+	int button_state = read_once & 0x3;
+
+	len += sprintf(buf+len, "SES: %s %s\nRESET: %s %s\n",
+		(button_state&2) ? "UP" : "DOWN",
+		(button_flip&2) ? "FLIP" : "",
+		(button_state&1) ? "UP" : "DOWN",
+		(button_flip&1) ? "FLIP" : "");
+
+	return len;
+}
+
+int __init adm8668_init_proc(void)
+{
+	struct proc_dir_entry *adm8668_proc_dir = NULL;
+	struct proc_dir_entry *sesled = NULL;
+	int __maybe_unused bogus;
+
+	/* these are known to be lights. rest are input...? */
+	ADM8668_CONFIG_REG(CRGPIO_REG)	= GPIO2_OUTPUT_ENABLE;
+	ADM8668_WLAN_REG(GPIO_REG)	= GPIO0_OUTPUT_ENABLE;
+
+	/* inital read off of the flipper switcher on the button thingie */
+	bogus = ADM8668_CONFIG_REG(CRGPIO_REG);
+
+	adm8668_proc_dir = proc_mkdir("adm8668", 0);
+	if (adm8668_proc_dir == NULL) {
+		printk(KERN_ERR "ADM8668 proc: unable to create proc dir.\n");
+		return 0;
+	}
+	create_proc_read_entry("buttons", 0444, adm8668_proc_dir,
+					adm8668_button_read_proc, NULL);
+	sesled = create_proc_entry("sesled", S_IRUGO|S_IWUGO, adm8668_proc_dir);
+	if (sesled) {
+		sesled->read_proc = adm8668_sesled_read_proc;
+		sesled->write_proc = adm8668_sesled_write_proc;
+	}
+
+	return 0;
+}
+
+module_init(adm8668_init_proc);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Scott Nicholas <neutronscott@scottn.us>");
+MODULE_DESCRIPTION("ADM8668 ghetto button driver");