From 929ba5dddbbbf2aaee90047531533cdd2f48ff9d Mon Sep 17 00:00:00 2001
From: Vegard Storheil Eriksen <zyp@jvnv.net>
Date: Sat, 8 Sep 2012 00:58:25 +0200
Subject: temp

---
 usb/dwc_otg.h | 25 +++++++++++++++++++++++--
 usb/generic.h | 22 ++++++++++++++++++++++
 2 files changed, 45 insertions(+), 2 deletions(-)

(limited to 'usb')

diff --git a/usb/dwc_otg.h b/usb/dwc_otg.h
index b68ca0e..f206a44 100644
--- a/usb/dwc_otg.h
+++ b/usb/dwc_otg.h
@@ -24,8 +24,7 @@ class USB_otg : public USB_generic {
 			
 			// OUT packet.
 			if(type == (0x2 << 17)) {
-				// TODO: Call endpoint callback.
-				(void)ep;
+				handle_out(ep, len);
 			}
 			
 			// SETUP packet.
@@ -97,6 +96,8 @@ class USB_otg : public USB_generic {
 		void process() {
 			// USB reset.
 			if(otg.reg.GINTSTS & (1 << 12)) {
+				handle_reset();
+				
 				otg.dev_oep_reg[0].DOEPCTL = (1 << 27);
 				otg.dev_reg.DAINTMSK = (1 << 16) | 1;
 				otg.dev_reg.DOEPMSK = (1 << 3) | 1;
@@ -136,6 +137,26 @@ class USB_otg : public USB_generic {
 				otg.fifo[ep].reg = *bufp++;
 			}
 		}
+		
+		virtual uint32_t read(uint32_t ep, uint32_t* bufp, uint32_t len) {
+			if(ep != rxfifo_ep) {
+				return 0;
+			}
+			
+			if(len > rxfifo_bytes) {
+				len = rxfifo_bytes;
+			}
+			
+			// TODO: Handle non-mod4 length properly.
+			
+			for(uint32_t i = 0; i < len; i += 4) {
+				bufp[i >> 2] = otg.fifo[0].reg;
+			}
+			
+			rxfifo_bytes -= len;
+			
+			return len;
+		}
 };
 
 #endif
diff --git a/usb/generic.h b/usb/generic.h
index 915b25a..60c89c4 100644
--- a/usb/generic.h
+++ b/usb/generic.h
@@ -17,6 +17,8 @@ class USB_class_driver {
 		virtual SetupStatus handle_setup(uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, uint16_t wLength) {
 			return SetupStatus::Unhandled;
 		}
+		
+		virtual void handle_out(uint8_t ep, uint32_t len) {}
 };
 
 class USB_generic {
@@ -25,12 +27,14 @@ class USB_generic {
 		desc_t conf_desc;
 		
 		USB_class_driver* control_handlers[4];
+		USB_class_driver* out_handlers[6];
 	
 	public:
 		USB_generic(desc_t dev, desc_t conf) : dev_desc(dev), conf_desc(conf) {}
 		
 		virtual bool ep_ready(uint32_t ep) = 0;
 		virtual void write(uint32_t ep, uint32_t* bufp, uint32_t len) = 0;
+		virtual uint32_t read(uint32_t ep, uint32_t* bufp, uint32_t len) = 0;
 		virtual void hw_set_address(uint8_t addr) = 0;
 		virtual void hw_conf_ep(uint8_t ep, uint32_t conf) = 0;
 		virtual void hw_set_stall(uint8_t ep) = 0;
@@ -46,6 +50,16 @@ class USB_generic {
 			// Handler table is full.
 			return false;
 		}
+		
+		bool register_out_handler(USB_class_driver* out_handler, uint8_t ep) {
+			if(ep >= sizeof(out_handlers) / sizeof(*out_handlers)) {
+				return false;
+			}
+			
+			out_handlers[ep] = out_handler;
+			
+			return true;
+		}
 	
 	protected:
 		bool get_descriptor(uint16_t wValue, uint16_t wIndex, uint16_t wLength) {
@@ -102,6 +116,9 @@ class USB_generic {
 			return true;
 		}
 		
+		void handle_reset() {
+			
+		}
 		
 		void handle_setup(const uint32_t* bufp) {
 			uint8_t bmRequestType = bufp[0] & 0xff;
@@ -150,6 +167,11 @@ class USB_generic {
 			hw_set_stall(0);
 		}
 		
+		void handle_out(uint8_t ep, uint32_t len) {
+			if(out_handlers[ep]) {
+				out_handlers[ep]->handle_out(ep, len);
+			}
+		}
 };
 
 #endif
-- 
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