include/usb/omap1510_udc.h - uboot/armada - Git at Google

 /*
  * (C) Copyright 2003
  * Gerry Hamel, geh@ti.com, Texas Instruments
  *
  * Based on
  * linux/drivers/usb/device/bi/omap.h
  * Register definitions for TI OMAP1510 USB bus interface driver
  *
  * Author: MontaVista Software, Inc.
  *	   source@mvista.com
  *
  * 2003 (c) MontaVista Software, Inc. This file is licensed under
  * the terms of the GNU General Public License version 2. This program
  * is licensed "as is" without any warranty of any kind, whether express
  * or implied.
  */

 #ifndef __USBDCORE_OMAP1510_H__
 #define __USBDCORE_OMAP1510_H__


 /*
  * 13.2 MPU Register Map
  */

 /* Table 13-1. USB Function Module Registers (endpoint) */
 #define UDC_BASE		     0xFFFB4000
 #define UDC_OFFSET(offset)	     (UDC_BASE + (offset))
 #define UDC_REV			     UDC_OFFSET(0x0)	/* Revision */
 #define UDC_EP_NUM		     UDC_OFFSET(0x4)	/* Endpoint selection */
 #define UDC_DATA		     UDC_OFFSET(0x08)	/* Data */
 #define UDC_CTRL		     UDC_OFFSET(0x0C)	/* Control */
 #define UDC_STAT_FLG		     UDC_OFFSET(0x10)	/* Status flag */
 #define UDC_RXFSTAT		     UDC_OFFSET(0x14)	/* Receive FIFO status */
 #define UDC_SYSCON1		     UDC_OFFSET(0x18)	/* System configuration 1 */
 #define UDC_SYSCON2		     UDC_OFFSET(0x1C)	/* System configuration 2 */
 #define UDC_DEVSTAT		     UDC_OFFSET(0x20)	/* Device status */
 #define UDC_SOF			     UDC_OFFSET(0x24)	/* Start of frame */
 #define UDC_IRQ_EN		     UDC_OFFSET(0x28)	/* Interrupt enable */
 #define UDC_DMA_IRQ_EN		     UDC_OFFSET(0x2C)	/* DMA interrupt enable */
 #define UDC_IRQ_SRC		     UDC_OFFSET(0x30)	/* Interrupt source */
 #define UDC_EPN_STAT		     UDC_OFFSET(0x34)	/* Endpoint interrupt status */
 #define UDC_DMAN_STAT		     UDC_OFFSET(0x3C)	/* DMA endpoint interrupt status */

 /* IRQ_EN register fields */
 #define UDC_Sof_IE		     (1 << 7)	/* Start-of-frame interrupt enabled */
 #define UDC_EPn_RX_IE		     (1 << 5)	/* Receive endpoint interrupt enabled */
 #define UDC_EPn_TX_IE		     (1 << 4)	/* Transmit endpoint interrupt enabled */
 #define UDC_DS_Chg_IE		     (1 << 3)	/* Device state changed interrupt enabled */
 #define UDC_EP0_IE		     (1 << 0)	/* EP0 transaction interrupt enabled */

 /* IRQ_SRC register fields */
 #define UDC_TXn_Done		     (1 << 10)	/* Transmit DMA channel n done */
 #define UDC_RXn_Cnt		     (1 << 9)	/* Receive DMA channel n transactions count */
 #define UDC_RXn_EOT		     (1 << 8)	/* Receive DMA channel n end of transfer */
 #define UDC_SOF_Flg		     (1 << 7)	/* Start-of-frame interrupt flag */
 #define UDC_EPn_RX		     (1 << 5)	/* Endpoint n OUT transaction */
 #define UDC_EPn_TX		     (1 << 4)	/* Endpoint n IN transaction */
 #define UDC_DS_Chg		     (1 << 3)	/* Device state changed */
 #define UDC_Setup		     (1 << 2)	/* Setup transaction */
 #define UDC_EP0_RX		     (1 << 1)	/* EP0 OUT transaction */
 #define UDC_EP0_TX		     (1 << 0)	/* EP0 IN transaction */

 /* DEVSTAT register fields, 14.2.9 */
 #define UDC_R_WK_OK		     (1 << 6)	/* Remote wakeup granted */
 #define UDC_USB_Reset		     (1 << 5)	/* USB reset signalling is active */
 #define UDC_SUS			     (1 << 4)	/* Suspended state */
 #define UDC_CFG			     (1 << 3)	/* Configured state */
 #define UDC_ADD			     (1 << 2)	/* Addressed state */
 #define UDC_DEF			     (1 << 1)	/* Default state */
 #define UDC_ATT			     (1 << 0)	/* Attached state */

 /* SYSCON1 register fields */
 #define UDC_Cfg_Lock		     (1 << 8)	/* Device configuration locked */
 #define UDC_Nak_En		     (1 << 4)	/* NAK enable */
 #define UDC_Self_Pwr		     (1 << 2)	/* Device is self-powered */
 #define UDC_Soff_Dis		     (1 << 1)	/* Shutoff disabled */
 #define UDC_Pullup_En		     (1 << 0)	/* External pullup enabled */

 /* SYSCON2 register fields */
 #define UDC_Rmt_Wkp		     (1 << 6)	/* Remote wakeup */
 #define UDC_Stall_Cmd		     (1 << 5)	/* Stall endpoint */
 #define UDC_Dev_Cfg		     (1 << 3)	/* Device configured */
 #define UDC_Clr_Cfg		     (1 << 2)	/* Clear configured */

 /*
  * Select and enable endpoints
  */

 /* Table 13-1. USB Function Module Registers (endpoint configuration) */
 #define UDC_EPBASE		     UDC_OFFSET(0x80)	/* Endpoints base address */
 #define UDC_EP0			     UDC_EPBASE /* Control endpoint configuration */
 #define UDC_EP_RX_BASE		     UDC_OFFSET(0x84)	/* Receive endpoints base address */
 #define UDC_EP_RX(endpoint)	     (UDC_EP_RX_BASE + ((endpoint) - 1) * 4)
 #define UDC_EP_TX_BASE		     UDC_OFFSET(0xC4)	/* Transmit endpoints base address */
 #define UDC_EP_TX(endpoint)	     (UDC_EP_TX_BASE + ((endpoint) - 1) * 4)

 /* EP_NUM register fields */
 #define UDC_Setup_Sel		     (1 << 6)	/* Setup FIFO select */
 #define UDC_EP_Sel		     (1 << 5)	/* TX/RX FIFO select */
 #define UDC_EP_Dir		     (1 << 4)	/* Endpoint direction */

 /* CTRL register fields */
 #define UDC_Clr_Halt		     (1 << 7)	/* Clear halt endpoint */
 #define UDC_Set_Halt		     (1 << 6)	/* Set halt endpoint */
 #define UDC_Set_FIFO_En		     (1 << 2)	/* Set FIFO enable */
 #define UDC_Clr_EP		     (1 << 1)	/* Clear endpoint */
 #define UDC_Reset_EP		     (1 << 0)	/* Reset endpoint */

 /* STAT_FLG register fields */
 #define UDC_Miss_In		     (1 << 14)
 #define UDC_Data_Flush		     (1 << 13)
 #define UDC_ISO_Err		     (1 << 12)
 #define UDC_ISO_FIFO_Empty	     (1 << 9)
 #define UDC_ISO_FIFO_Full	     (1 << 8)
 #define UDC_EP_Halted		     (1 << 6)
 #define UDC_STALL		     (1 << 5)
 #define UDC_NAK			     (1 << 4)
 #define UDC_ACK			     (1 << 3)
 #define UDC_FIFO_En		     (1 << 2)
 #define UDC_Non_ISO_FIFO_Empty	     (1 << 1)
 #define UDC_Non_ISO_FIFO_Full	     (1 << 0)

 /* EPn_RX register fields */
 #define UDC_EPn_RX_Valid	     (1 << 15)	/* valid */
 #define UDC_EPn_RX_Db		     (1 << 14)	/* double-buffer */
 #define UDC_EPn_RX_Iso		     (1 << 11)	/* isochronous */

 /* EPn_TX register fields */
 #define UDC_EPn_TX_Valid	     (1 << 15)	/* valid */
 #define UDC_EPn_TX_Db		     (1 << 14)	/* double-buffer */
 #define UDC_EPn_TX_Iso		     (1 << 11)	/* isochronous */

 #define EP0_PACKETSIZE		     0x40

 /* physical to logical endpoint mapping
  * Physical endpoints are an index into device->bus->endpoint_array.
  * Logical endpoints are endpoints 0 to 15 IN and OUT as defined in
  * the USB specification.
  *
  *	physical ep	logical ep	direction	endpoint_address
  *	0		0		IN and OUT	0x00
  *	1 to 15		1 to 15		OUT		0x01 to 0x0f
  *	16 to 30	1 to 15		IN		0x81 to 0x8f
  */
 #define PHYS_EP_TO_EP_ADDR(ep) (((ep) < 16) ? (ep) : (((ep) - 15) | 0x80))
 #define EP_ADDR_TO_PHYS_EP(a) (((a) & 0x80) ? (((a) & ~0x80) + 15) : (a))

 /* MOD_CONF_CTRL_0 bits (FIXME: move to board hardware.h ?) */
 #define CONF_MOD_USB_W2FC_VBUS_MODE_R (1 << 17)

 /* Other registers (may be) related to USB */

 #define CLOCK_CTRL	    (0xFFFE0830)
 #define APLL_CTRL	    (0xFFFE084C)
 #define DPLL_CTRL	    (0xFFFE083C)
 #define SOFT_REQ	    (0xFFFE0834)
 #define STATUS_REQ	    (0xFFFE0840)

 /* FUNC_MUX_CTRL_0 bits related to USB */
 #define UDC_VBUS_CTRL	    (1 << 19)
 #define UDC_VBUS_MODE	    (1 << 18)

 /* OMAP Endpoint parameters */
 #define EP0_MAX_PACKET_SIZE 64
 #define UDC_OUT_ENDPOINT 2
 #define UDC_OUT_PACKET_SIZE 64
 #define UDC_IN_ENDPOINT	1
 #define UDC_IN_PACKET_SIZE 64
 #define UDC_INT_ENDPOINT 5
 #define UDC_INT_PACKET_SIZE	16
 #define UDC_BULK_PACKET_SIZE 16

 void udc_irq (void);
 /* Flow control */
 void udc_set_nak(int epid);
 void udc_unset_nak (int epid);

 /* Higher level functions for abstracting away from specific device */
 int udc_endpoint_write(struct usb_endpoint_instance *endpoint);

 int  udc_init (void);

 void udc_enable(struct usb_device_instance *device);
 void udc_disable(void);

 void udc_connect(void);
 void udc_disconnect(void);

 void udc_startup_events(struct usb_device_instance *device);
 void udc_setup_ep(struct usb_device_instance *device, unsigned int ep, struct usb_endpoint_instance *endpoint);

 #endif
	/*
	* (C) Copyright 2003
	* Gerry Hamel, geh@ti.com, Texas Instruments
	*
	* Based on
	* linux/drivers/usb/device/bi/omap.h
	* Register definitions for TI OMAP1510 USB bus interface driver
	*
	* Author: MontaVista Software, Inc.
	* source@mvista.com
	*
	* 2003 (c) MontaVista Software, Inc. This file is licensed under
	* the terms of the GNU General Public License version 2. This program
	* is licensed "as is" without any warranty of any kind, whether express
	* or implied.
	*/

	#ifndef __USBDCORE_OMAP1510_H__
	#define __USBDCORE_OMAP1510_H__


	/*
	* 13.2 MPU Register Map
	*/

	/* Table 13-1. USB Function Module Registers (endpoint) */
	#define UDC_BASE 0xFFFB4000
	#define UDC_OFFSET(offset) (UDC_BASE + (offset))
	#define UDC_REV UDC_OFFSET(0x0) /* Revision */
	#define UDC_EP_NUM UDC_OFFSET(0x4) /* Endpoint selection */
	#define UDC_DATA UDC_OFFSET(0x08) /* Data */
	#define UDC_CTRL UDC_OFFSET(0x0C) /* Control */
	#define UDC_STAT_FLG UDC_OFFSET(0x10) /* Status flag */
	#define UDC_RXFSTAT UDC_OFFSET(0x14) /* Receive FIFO status */
	#define UDC_SYSCON1 UDC_OFFSET(0x18) /* System configuration 1 */
	#define UDC_SYSCON2 UDC_OFFSET(0x1C) /* System configuration 2 */
	#define UDC_DEVSTAT UDC_OFFSET(0x20) /* Device status */
	#define UDC_SOF UDC_OFFSET(0x24) /* Start of frame */
	#define UDC_IRQ_EN UDC_OFFSET(0x28) /* Interrupt enable */
	#define UDC_DMA_IRQ_EN UDC_OFFSET(0x2C) /* DMA interrupt enable */
	#define UDC_IRQ_SRC UDC_OFFSET(0x30) /* Interrupt source */
	#define UDC_EPN_STAT UDC_OFFSET(0x34) /* Endpoint interrupt status */
	#define UDC_DMAN_STAT UDC_OFFSET(0x3C) /* DMA endpoint interrupt status */

	/* IRQ_EN register fields */
	#define UDC_Sof_IE (1 << 7) /* Start-of-frame interrupt enabled */
	#define UDC_EPn_RX_IE (1 << 5) /* Receive endpoint interrupt enabled */
	#define UDC_EPn_TX_IE (1 << 4) /* Transmit endpoint interrupt enabled */
	#define UDC_DS_Chg_IE (1 << 3) /* Device state changed interrupt enabled */
	#define UDC_EP0_IE (1 << 0) /* EP0 transaction interrupt enabled */

	/* IRQ_SRC register fields */
	#define UDC_TXn_Done (1 << 10) /* Transmit DMA channel n done */
	#define UDC_RXn_Cnt (1 << 9) /* Receive DMA channel n transactions count */
	#define UDC_RXn_EOT (1 << 8) /* Receive DMA channel n end of transfer */
	#define UDC_SOF_Flg (1 << 7) /* Start-of-frame interrupt flag */
	#define UDC_EPn_RX (1 << 5) /* Endpoint n OUT transaction */
	#define UDC_EPn_TX (1 << 4) /* Endpoint n IN transaction */
	#define UDC_DS_Chg (1 << 3) /* Device state changed */
	#define UDC_Setup (1 << 2) /* Setup transaction */
	#define UDC_EP0_RX (1 << 1) /* EP0 OUT transaction */
	#define UDC_EP0_TX (1 << 0) /* EP0 IN transaction */

	/* DEVSTAT register fields, 14.2.9 */
	#define UDC_R_WK_OK (1 << 6) /* Remote wakeup granted */
	#define UDC_USB_Reset (1 << 5) /* USB reset signalling is active */
	#define UDC_SUS (1 << 4) /* Suspended state */
	#define UDC_CFG (1 << 3) /* Configured state */
	#define UDC_ADD (1 << 2) /* Addressed state */
	#define UDC_DEF (1 << 1) /* Default state */
	#define UDC_ATT (1 << 0) /* Attached state */

	/* SYSCON1 register fields */
	#define UDC_Cfg_Lock (1 << 8) /* Device configuration locked */
	#define UDC_Nak_En (1 << 4) /* NAK enable */
	#define UDC_Self_Pwr (1 << 2) /* Device is self-powered */
	#define UDC_Soff_Dis (1 << 1) /* Shutoff disabled */
	#define UDC_Pullup_En (1 << 0) /* External pullup enabled */

	/* SYSCON2 register fields */
	#define UDC_Rmt_Wkp (1 << 6) /* Remote wakeup */
	#define UDC_Stall_Cmd (1 << 5) /* Stall endpoint */
	#define UDC_Dev_Cfg (1 << 3) /* Device configured */
	#define UDC_Clr_Cfg (1 << 2) /* Clear configured */

	/*
	* Select and enable endpoints
	*/

	/* Table 13-1. USB Function Module Registers (endpoint configuration) */
	#define UDC_EPBASE UDC_OFFSET(0x80) /* Endpoints base address */
	#define UDC_EP0 UDC_EPBASE /* Control endpoint configuration */
	#define UDC_EP_RX_BASE UDC_OFFSET(0x84) /* Receive endpoints base address */
	#define UDC_EP_RX(endpoint) (UDC_EP_RX_BASE + ((endpoint) - 1) * 4)
	#define UDC_EP_TX_BASE UDC_OFFSET(0xC4) /* Transmit endpoints base address */
	#define UDC_EP_TX(endpoint) (UDC_EP_TX_BASE + ((endpoint) - 1) * 4)

	/* EP_NUM register fields */
	#define UDC_Setup_Sel (1 << 6) /* Setup FIFO select */
	#define UDC_EP_Sel (1 << 5) /* TX/RX FIFO select */
	#define UDC_EP_Dir (1 << 4) /* Endpoint direction */

	/* CTRL register fields */
	#define UDC_Clr_Halt (1 << 7) /* Clear halt endpoint */
	#define UDC_Set_Halt (1 << 6) /* Set halt endpoint */
	#define UDC_Set_FIFO_En (1 << 2) /* Set FIFO enable */
	#define UDC_Clr_EP (1 << 1) /* Clear endpoint */
	#define UDC_Reset_EP (1 << 0) /* Reset endpoint */

	/* STAT_FLG register fields */
	#define UDC_Miss_In (1 << 14)
	#define UDC_Data_Flush (1 << 13)
	#define UDC_ISO_Err (1 << 12)
	#define UDC_ISO_FIFO_Empty (1 << 9)
	#define UDC_ISO_FIFO_Full (1 << 8)
	#define UDC_EP_Halted (1 << 6)
	#define UDC_STALL (1 << 5)
	#define UDC_NAK (1 << 4)
	#define UDC_ACK (1 << 3)
	#define UDC_FIFO_En (1 << 2)
	#define UDC_Non_ISO_FIFO_Empty (1 << 1)
	#define UDC_Non_ISO_FIFO_Full (1 << 0)

	/* EPn_RX register fields */
	#define UDC_EPn_RX_Valid (1 << 15) /* valid */
	#define UDC_EPn_RX_Db (1 << 14) /* double-buffer */
	#define UDC_EPn_RX_Iso (1 << 11) /* isochronous */

	/* EPn_TX register fields */
	#define UDC_EPn_TX_Valid (1 << 15) /* valid */
	#define UDC_EPn_TX_Db (1 << 14) /* double-buffer */
	#define UDC_EPn_TX_Iso (1 << 11) /* isochronous */

	#define EP0_PACKETSIZE 0x40

	/* physical to logical endpoint mapping
	* Physical endpoints are an index into device->bus->endpoint_array.
	* Logical endpoints are endpoints 0 to 15 IN and OUT as defined in
	* the USB specification.
	*
	* physical ep logical ep direction endpoint_address
	* 0 0 IN and OUT 0x00
	* 1 to 15 1 to 15 OUT 0x01 to 0x0f
	* 16 to 30 1 to 15 IN 0x81 to 0x8f
	*/
	#define PHYS_EP_TO_EP_ADDR(ep) (((ep) < 16) ? (ep) : (((ep) - 15) \| 0x80))
	#define EP_ADDR_TO_PHYS_EP(a) (((a) & 0x80) ? (((a) & ~0x80) + 15) : (a))

	/* MOD_CONF_CTRL_0 bits (FIXME: move to board hardware.h ?) */
	#define CONF_MOD_USB_W2FC_VBUS_MODE_R (1 << 17)

	/* Other registers (may be) related to USB */

	#define CLOCK_CTRL (0xFFFE0830)
	#define APLL_CTRL (0xFFFE084C)
	#define DPLL_CTRL (0xFFFE083C)
	#define SOFT_REQ (0xFFFE0834)
	#define STATUS_REQ (0xFFFE0840)

	/* FUNC_MUX_CTRL_0 bits related to USB */
	#define UDC_VBUS_CTRL (1 << 19)
	#define UDC_VBUS_MODE (1 << 18)

	/* OMAP Endpoint parameters */
	#define EP0_MAX_PACKET_SIZE 64
	#define UDC_OUT_ENDPOINT 2
	#define UDC_OUT_PACKET_SIZE 64
	#define UDC_IN_ENDPOINT 1
	#define UDC_IN_PACKET_SIZE 64
	#define UDC_INT_ENDPOINT 5
	#define UDC_INT_PACKET_SIZE 16
	#define UDC_BULK_PACKET_SIZE 16

	void udc_irq (void);
	/* Flow control */
	void udc_set_nak(int epid);
	void udc_unset_nak (int epid);

	/* Higher level functions for abstracting away from specific device */
	int udc_endpoint_write(struct usb_endpoint_instance *endpoint);

	int udc_init (void);

	void udc_enable(struct usb_device_instance *device);
	void udc_disable(void);

	void udc_connect(void);
	void udc_disconnect(void);

	void udc_startup_events(struct usb_device_instance *device);
	void udc_setup_ep(struct usb_device_instance device, unsigned int ep, struct usb_endpoint_instance endpoint);

	#endif