X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=teensy3%2Fusb_mem.c;h=5d9b467674d4d905f30120b289c3b807214b6d67;hb=HEAD;hp=5912b67ad628b515b78e5472dd28caac76acfed9;hpb=a773ac06cdc55be51ebc0bc61aa6066b54746c7d;p=megadrive.git

diff --git a/teensy3/usb_mem.c b/teensy3/usb_mem.c
deleted file mode 100644
index 5912b67..0000000
--- a/teensy3/usb_mem.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/* Teensyduino Core Library
- * http://www.pjrc.com/teensy/
- * Copyright (c) 2013 PJRC.COM, LLC.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * 1. The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * 2. If the Software is incorporated into a build system that allows
- * selection among a list of target devices, then similar target
- * devices manufactured by PJRC.COM must be included in the list of
- * target devices and selectable in the same manner.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include "usb_dev.h"
-#if F_CPU >= 20000000 && defined(NUM_ENDPOINTS)
-
-#include "kinetis.h"
-//#include "HardwareSerial.h"
-#include "usb_mem.h"
-
-__attribute__ ((section(".usbbuffers"), used))
-unsigned char usb_buffer_memory[NUM_USB_BUFFERS * sizeof(usb_packet_t)];
-
-static uint32_t usb_buffer_available = 0xFFFFFFFF;
-
-// use bitmask and CLZ instruction to implement fast free list
-// http://www.archivum.info/gnu.gcc.help/2006-08/00148/Re-GCC-Inline-Assembly.html
-// http://gcc.gnu.org/ml/gcc/2012-06/msg00015.html
-// __builtin_clz()
-
-usb_packet_t * usb_malloc(void)
-{
-	unsigned int n, avail;
-	uint8_t *p;
-
-	__disable_irq();
-	avail = usb_buffer_available;
-	n = __builtin_clz(avail); // clz = count leading zeros
-	if (n >= NUM_USB_BUFFERS) {
-		__enable_irq();
-		return NULL;
-	}
-	//serial_print("malloc:");
-	//serial_phex(n);
-	//serial_print("\n");
-
-	usb_buffer_available = avail & ~(0x80000000 >> n);
-	__enable_irq();
-	p = usb_buffer_memory + (n * sizeof(usb_packet_t));
-	//serial_print("malloc:");
-	//serial_phex32((int)p);
-	//serial_print("\n");
-	*(uint32_t *)p = 0;
-	*(uint32_t *)(p + 4) = 0;
-	return (usb_packet_t *)p;
-}
-
-// for the receive endpoints to request memory
-extern uint8_t usb_rx_memory_needed;
-extern void usb_rx_memory(usb_packet_t *packet);
-
-void usb_free(usb_packet_t *p)
-{
-	unsigned int n, mask;
-
-	//serial_print("free:");
-	n = ((uint8_t *)p - usb_buffer_memory) / sizeof(usb_packet_t);
-	if (n >= NUM_USB_BUFFERS) return;
-	//serial_phex(n);
-	//serial_print("\n");
-
-	// if any endpoints are starving for memory to receive
-	// packets, give this memory to them immediately!
-	if (usb_rx_memory_needed && usb_configuration) {
-		//serial_print("give to rx:");
-		//serial_phex32((int)p);
-		//serial_print("\n");
-		usb_rx_memory(p);
-		return;
-	}
-
-	mask = (0x80000000 >> n);
-	__disable_irq();
-	usb_buffer_available |= mask;
-	__enable_irq();
-
-	//serial_print("free:");
-	//serial_phex32((int)p);
-	//serial_print("\n");
-}
-
-#endif // F_CPU >= 20 MHz && defined(NUM_ENDPOINTS)