From: Jacob Alexander <haata@kiibohd.com>
Date: Sat, 13 Jun 2015 01:31:55 +0000 (-0700)
Subject: Merge pull request #27 from smasher816/wakeup-devel
X-Git-Url: https://git.donarmstrong.com/?a=commitdiff_plain;h=622ea5d85f94be4b1694fdf08e30fa76eeb18fe4;hp=c21439cb48daec7514da4250c41962205fa96624;p=kiibohd-controller.git

Merge pull request #27 from smasher816/wakeup-devel

Inital Remote Wakeup Support
---

diff --git a/Output/pjrcUSB/arm/usb_dev.c b/Output/pjrcUSB/arm/usb_dev.c
index f09540c..5c12a41 100644
--- a/Output/pjrcUSB/arm/usb_dev.c
+++ b/Output/pjrcUSB/arm/usb_dev.c
@@ -167,6 +167,7 @@ volatile uint8_t usb_reboot_timer = 0;
 
 static uint8_t reply_buffer[8];
 
+volatile uint8_t remote_wakeup_enabled = 0;
 
 
 // ----- Functions -----
@@ -294,7 +295,8 @@ static void usb_setup()
 		data = reply_buffer;
 		break;
 	case 0x0080: // GET_STATUS (device)
-		reply_buffer[0] = 0;
+		//I think this is the corrent endianess
+		reply_buffer[0] = (remote_wakeup_enabled)<<1;
 		reply_buffer[1] = 0;
 		datalen = 2;
 		data = reply_buffer;
@@ -314,6 +316,11 @@ static void usb_setup()
 		datalen = 2;
 		break;
 	case 0x0100: // CLEAR_FEATURE (device)
+		//Disable DEVICE_REMOTE_WAKEUP feature
+		if (setup.wValue == 0x01) {
+			remote_wakeup_enabled = 0;
+		}
+		break;
 	case 0x0101: // CLEAR_FEATURE (interface)
 		// TODO: Currently ignoring, perhaps useful? -HaaTa
 		endpoint0_stall();
@@ -334,6 +341,11 @@ static void usb_setup()
 		endpoint0_stall();
 		return;
 	case 0x0300: // SET_FEATURE (device)
+		//Enable DEVICE_REMOTE_WAKEUP feature
+		if (setup.wValue == 0x01) {
+		    remote_wakeup_enabled = 1;
+		}
+		break;
 	case 0x0301: // SET_FEATURE (interface)
 		// TODO: Currently ignoring, perhaps useful? -HaaTa
 		endpoint0_stall();
@@ -1108,6 +1120,11 @@ restart:
 		//serial_print("sleep\n");
 		USB0_ISTAT = USB_ISTAT_SLEEP;
 	}
+
+	if ( (status & USB_ISTAT_RESUME /* 20 */ ) ) {
+		//serial_print("resume\n");
+		USB0_ISTAT = USB_ISTAT_RESUME;
+	}
 }
 
 
diff --git a/Output/pjrcUSB/arm/usb_dev.h b/Output/pjrcUSB/arm/usb_dev.h
index 2ba75cf..0090e89 100644
--- a/Output/pjrcUSB/arm/usb_dev.h
+++ b/Output/pjrcUSB/arm/usb_dev.h
@@ -56,6 +56,8 @@ extern volatile uint8_t usb_cdc_line_coding[7];
 extern volatile uint8_t usb_cdc_line_rtsdtr;
 extern volatile uint8_t usb_cdc_transmit_flush_timer;
 
+extern volatile uint8_t remote_wakeup_enabled;
+
 
 
 // ----- Functions -----
diff --git a/Output/pjrcUSB/arm/usb_keyboard.c b/Output/pjrcUSB/arm/usb_keyboard.c
index b425073..84f3af7 100644
--- a/Output/pjrcUSB/arm/usb_keyboard.c
+++ b/Output/pjrcUSB/arm/usb_keyboard.c
@@ -76,6 +76,13 @@ void usb_keyboard_send()
 	uint32_t wait_count = 0;
 	usb_packet_t *tx_packet;
 
+	if (remote_wakeup_enabled) {
+		USB0_CTL |= USB_CTL_RESUME;
+		_delay_ms(5); //wait 1 to 15ms
+		USB0_CTL &= ~USB_CTL_RESUME;
+		_delay_ms(5);
+	}
+
 	// Wait till ready
 	while ( 1 )
 	{