SAM4E: Add USB full speed device (UDP) driver
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Gregory Nutt
parent
b74e183dac
commit
2e586f04ab
@ -179,6 +179,7 @@
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* Status, and UDP Interrupt Clear Registers.
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*/
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#define UDP_INT_EP_MASK (0x000000ff)
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#define UDP_INT_EP(n) (1 << (n))
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# define UDP_INT_EP0 (1 << 0) /* Bit 0: Endpoint 0 Interrupt (Not ICR) */
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# define UDP_INT_EP1 (1 << 1) /* Bit 1: Endpoint 1 Interrupt (Not ICR) */
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@ -220,6 +221,7 @@
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#define UDPEP_CSR_TXPKTRDY (1 << 4) /* Bit 4: Transmit Packet Ready */
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#define UDPEP_CSR_FORCESTALL (1 << 5) /* Bit 5: Force Stall */
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#define UDPEP_CSR_RXDATABK1 (1 << 6) /* Bit 6: Receive Data Bank 1 */
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#define UDPEP_CSR_DIR_SHIFT (7) /* Bit 7: Transfer Direction */
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#define UDPEP_CSR_DIR (1 << 7) /* Bit 7: Transfer Direction */
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#define UDPEP_CSR_EPTYPE_SHIFT (8) /* Bit 8-10: Endpoint type */
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#define UDPEP_CSR_EPTYPE_MASK (7 << UDPEP_CSR_EPTYPE_SHIFT)
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@ -257,7 +257,7 @@ static inline void sam_pmcsetup(void)
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regval = (BOARD_PMC_USBS | BOARD_PMC_USBDIV);
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putreg32(regval, SAM_PMC_USB);
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/* Set the UDP bit in the SCER1 register to enable the USB clock output */
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/* Set the UDP bit in the SCER register to enable the USB clock output */
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regval = getreg32(SAM_PMC_SCER);
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regval |= PMC_UDP;
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3953
arch/arm/src/sam34/sam_udp.c
Normal file
3953
arch/arm/src/sam34/sam_udp.c
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File diff suppressed because it is too large
Load Diff
92
arch/arm/src/sam34/sam_udp.h
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92
arch/arm/src/sam34/sam_udp.h
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@ -0,0 +1,92 @@
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/************************************************************************************
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* arch/arm/src/sam34/sam_udphs.h
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*
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* Copyright (C) 2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __ARCH_ARM_SRC_SAM34_SAM_UDP_H
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#define __ARCH_ARM_SRC_SAM34_SAM_UDP_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/usb/usbdev.h>
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#include <stdint.h>
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#include "chip.h"
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#include "chip/sam_udp.h"
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/************************************************************************************
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* Public Functions
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************************************************************************************/
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#ifndef __ASSEMBLY__
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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/************************************************************************************
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* Name: sam_udp_suspend
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*
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* Description:
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* Board logic must provide the sam_udp_suspend logic if the UDP driver is
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* used. This function is called whenever the USB enters or leaves suspend mode.
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*
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* When 'resume' is false, this function call provides an opportunity to perform
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* board-specific power-saving actions so that less power is consumed while the
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* USB is suspended.
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*
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* Certain power-saving operations are performed by the UDP driver when it enters
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* suspend mode: The USB device peripheral clocks are be switched off. MCK and
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* UDPCK are switched off and the USB transceiver is disabled.
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*
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* When 'resume' is true, normal clocking and operations must all be restored.
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*
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************************************************************************************/
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void sam_udp_suspend(FAR struct usbdev_s *dev, bool resume);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_ARM_SRC_SAM34_SAM_UDP_H */
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