From 4b0a2158ae6eb7031ad81c0d2e030461796438f5 Mon Sep 17 00:00:00 2001
From: CMY <cmy@rock-chips.com>
Date: Sat, 8 Jun 2013 16:32:21 +0800
Subject: [PATCH] =?utf8?q?=E6=94=AF=E6=8C=81=E8=93=9D=E7=89=99LPM(broadcom?=
 =?utf8?q?)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
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---
 net/rfkill/rfkill-rk.c | 84 +++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 83 insertions(+), 1 deletion(-)

diff --git a/net/rfkill/rfkill-rk.c b/net/rfkill/rfkill-rk.c
index 7282e35494a5..5ede7421fecd 100755
--- a/net/rfkill/rfkill-rk.c
+++ b/net/rfkill/rfkill-rk.c
@@ -42,6 +42,8 @@
 #include <linux/interrupt.h>
 #include <asm/irq.h>
 #include <linux/suspend.h>
+#include <linux/proc_fs.h>
+#include <linux/uaccess.h>
 
 #if 0
 #define DBG(x...)   printk(KERN_INFO "[BT_RFKILL]: "x)
@@ -51,7 +53,7 @@
 
 #define LOG(x...)   printk(KERN_INFO "[BT_RFKILL]: "x)
 
-#define BT_WAKEUP_TIMEOUT           3000
+#define BT_WAKEUP_TIMEOUT           10000
 #define BT_IRQ_WAKELOCK_TIMEOUT     10*1000
 
 #define BT_BLOCKED     true
@@ -450,11 +452,56 @@ static const struct rfkill_ops rfkill_rk_ops = {
     .set_block = rfkill_rk_set_power,
 };
 
+#define PROC_DIR	"bluetooth/sleep"
+
+static struct proc_dir_entry *bluetooth_dir, *sleep_dir;
+
+static int bluesleep_read_proc_lpm(char *page, char **start, off_t offset,
+					int count, int *eof, void *data)
+{
+    *eof = 1;
+    return sprintf(page, "unsupported to read\n");
+}
+
+static int bluesleep_write_proc_lpm(struct file *file, const char *buffer,
+					unsigned long count, void *data)
+{
+    return count;
+}
+
+static int bluesleep_read_proc_btwrite(char *page, char **start, off_t offset,
+					int count, int *eof, void *data)
+{
+    *eof = 1;
+    return sprintf(page, "unsupported to read\n");
+}
+
+static int bluesleep_write_proc_btwrite(struct file *file, const char *buffer,
+					unsigned long count, void *data)
+{
+    char b;
+
+    if (count < 1)
+        return -EINVAL;
+
+    if (copy_from_user(&b, buffer, 1))
+        return -EFAULT;
+
+    DBG("btwrite %c\n", b);
+    /* HCI_DEV_WRITE */
+    if (b != '0') {
+        rfkill_rk_sleep_bt(BT_WAKEUP);
+    }
+
+    return count;
+}
+
 static int rfkill_rk_probe(struct platform_device *pdev)
 {
 	struct rfkill_rk_data *rfkill;
 	struct rfkill_rk_platform_data *pdata = pdev->dev.platform_data;
 	int ret = 0;
+    struct proc_dir_entry *ent;
 
     DBG("Enter %s\n", __func__);
 
@@ -472,6 +519,38 @@ static int rfkill_rk_probe(struct platform_device *pdev)
 	rfkill->pdata = pdata;
     g_rfkill = rfkill;
 
+    bluetooth_dir = proc_mkdir("bluetooth", NULL);
+    if (bluetooth_dir == NULL) {
+        LOG("Unable to create /proc/bluetooth directory");
+        return -ENOMEM;
+    }
+
+    sleep_dir = proc_mkdir("sleep", bluetooth_dir);
+    if (sleep_dir == NULL) {
+        LOG("Unable to create /proc/%s directory", PROC_DIR);
+        return -ENOMEM;
+    }
+
+	/* read/write proc entries */
+    ent = create_proc_entry("lpm", 0, sleep_dir);
+    if (ent == NULL) {
+        LOG("Unable to create /proc/%s/lpm entry", PROC_DIR);
+        ret = -ENOMEM;
+        goto fail_alloc;
+    }
+    ent->read_proc = bluesleep_read_proc_lpm;
+    ent->write_proc = bluesleep_write_proc_lpm;
+
+    /* read/write proc entries */
+    ent = create_proc_entry("btwrite", 0, sleep_dir);
+    if (ent == NULL) {
+        LOG("Unable to create /proc/%s/btwrite entry", PROC_DIR);
+        ret = -ENOMEM;
+        goto fail_alloc;
+    }
+    ent->read_proc = bluesleep_read_proc_btwrite;
+    ent->write_proc = bluesleep_write_proc_btwrite;
+
     // ÉêÇëGPIOÒÔ¼°IRQ
     DBG("init gpio\n");
     // ¶ÔÓÚRK29 BCM4329£¬ËüµÄpoweron ioÓëwifi¹²Óã¬ÔÚboadÎļþÖÐÒѾ­request
@@ -543,6 +622,9 @@ fail_alloc:
 	kfree(rfkill);
     g_rfkill = NULL;
 
+	remove_proc_entry("btwrite", sleep_dir);
+	remove_proc_entry("lpm", sleep_dir);
+
 	return ret;
 }
 
-- 
2.34.1