/* * linux/drivers/usb/gadget/lh7a40x_udc.h * Sharp LH7A40x on-chip full speed USB device controllers * * Copyright (C) 2004 Mikko Lahteenmaki, Nordic ID * Copyright (C) 2004 Bo Henriksen, Nordic ID * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #ifndef __LH7A40X_H_ #define __LH7A40X_H_ #include <linux/module.h> #include <linux/kernel.h> #include <linux/ioport.h> #include <linux/types.h> #include <linux/errno.h> #include <linux/delay.h> #include <linux/sched.h> #include <linux/slab.h> #include <linux/init.h> #include <linux/timer.h> #include <linux/list.h> #include <linux/interrupt.h> #include <linux/proc_fs.h> #include <linux/mm.h> #include <linux/device.h> #include <linux/dma-mapping.h> #include <asm/byteorder.h> #include <asm/dma.h> #include <asm/io.h> #include <asm/irq.h> #include <asm/system.h> #include <asm/unaligned.h> #include <asm/hardware.h> #include <linux/usb/ch9.h> #include <linux/usb_gadget.h> /* * Memory map */ #define USB_FA 0x80000200 // function address register #define USB_PM 0x80000204 // power management register #define USB_IN_INT 0x80000208 // IN interrupt register bank (EP0-EP3) #define USB_OUT_INT 0x80000210 // OUT interrupt register bank (EP2) #define USB_INT 0x80000218 // interrupt register bank #define USB_IN_INT_EN 0x8000021C // IN interrupt enable register bank #define USB_OUT_INT_EN 0x80000224 // OUT interrupt enable register bank #define USB_INT_EN 0x8000022C // USB interrupt enable register bank #define USB_FRM_NUM1 0x80000230 // Frame number1 register #define USB_FRM_NUM2 0x80000234 // Frame number2 register #define USB_INDEX 0x80000238 // index register #define USB_IN_MAXP 0x80000240 // IN MAXP register #define USB_IN_CSR1 0x80000244 // IN CSR1 register/EP0 CSR register #define USB_EP0_CSR 0x80000244 // IN CSR1 register/EP0 CSR register #define USB_IN_CSR2 0x80000248 // IN CSR2 register #define USB_OUT_MAXP 0x8000024C // OUT MAXP register #define USB_OUT_CSR1 0x80000250 // OUT CSR1 register #define USB_OUT_CSR2 0x80000254 // OUT CSR2 register #define USB_OUT_FIFO_WC1 0x80000258 // OUT FIFO write count1 register #define USB_OUT_FIFO_WC2 0x8000025C // OUT FIFO write count2 register #define USB_RESET 0x8000044C // USB reset register #define USB_EP0_FIFO 0x80000280 #define USB_EP1_FIFO 0x80000284 #define USB_EP2_FIFO 0x80000288 #define USB_EP3_FIFO 0x8000028c /* * USB reset register */ #define USB_RESET_APB (1<<1) //resets USB APB control side WRITE #define USB_RESET_IO (1<<0) //resets USB IO side WRITE /* * USB function address register */ #define USB_FA_ADDR_UPDATE (1<<7) #define USB_FA_FUNCTION_ADDR (0x7F) /* * Power Management register */ #define PM_USB_DCP (1<<5) #define PM_USB_ENABLE (1<<4) #define PM_USB_RESET (1<<3) #define PM_UC_RESUME (1<<2) #define PM_SUSPEND_MODE (1<<1) #define PM_ENABLE_SUSPEND (1<<0) /* * IN interrupt register */ #define USB_IN_INT_EP3 (1<<3) #define USB_IN_INT_EP1 (1<<1) #define USB_IN_INT_EP0 (1<<0) /* * OUT interrupt register */ #define USB_OUT_INT_EP2 (1<<2) /* * USB interrupt register */ #define USB_INT_RESET_INT (1<<2) #define USB_INT_RESUME_INT (1<<1) #define USB_INT_SUSPEND_INT (1<<0) /* * USB interrupt enable register */ #define USB_INT_EN_USB_RESET_INTER (1<<2) #define USB_INT_EN_RESUME_INTER (1<<1) #define USB_INT_EN_SUSPEND_INTER (1<<0) /* * INCSR1 register */ #define USB_IN_CSR1_CLR_DATA_TOGGLE (1<<6) #define USB_IN_CSR1_SENT_STALL (1<<5) #define USB_IN_CSR1_SEND_STALL (1<<4) #define USB_IN_CSR1_FIFO_FLUSH (1<<3) #define USB_IN_CSR1_FIFO_NOT_EMPTY (1<<1) #define USB_IN_CSR1_IN_PKT_RDY (1<<0) /* * INCSR2 register */ #define USB_IN_CSR2_AUTO_SET (1<<7) #define USB_IN_CSR2_USB_DMA_EN (1<<4) /* * OUT CSR1 register */ #define USB_OUT_CSR1_CLR_DATA_REG (1<<7) #define USB_OUT_CSR1_SENT_STALL (1<<6) #define USB_OUT_CSR1_SEND_STALL (1<<5) #define USB_OUT_CSR1_FIFO_FLUSH (1<<4) #define USB_OUT_CSR1_FIFO_FULL (1<<1) #define USB_OUT_CSR1_OUT_PKT_RDY (1<<0) /* * OUT CSR2 register */ #define USB_OUT_CSR2_AUTO_CLR (1<<7) #define USB_OUT_CSR2_USB_DMA_EN (1<<4) /* * EP0 CSR */ #define EP0_CLR_SETUP_END (1<<7) /* Clear "Setup Ends" Bit (w) */ #define EP0_CLR_OUT (1<<6) /* Clear "Out packet ready" Bit (w) */ #define EP0_SEND_STALL (1<<5) /* Send STALL Handshake (rw) */ #define EP0_SETUP_END (1<<4) /* Setup Ends (r) */ #define EP0_DATA_END (1<<3) /* Data end (rw) */ #define EP0_SENT_STALL (1<<2) /* Sent Stall Handshake (r) */ #define EP0_IN_PKT_RDY (1<<1) /* In packet ready (rw) */ #define EP0_OUT_PKT_RDY (1<<0) /* Out packet ready (r) */ /* general CSR */ #define OUT_PKT_RDY (1<<0) #define IN_PKT_RDY (1<<0) /* * IN/OUT MAXP register */ #define USB_OUT_MAXP_MAXP (0xF) #define USB_IN_MAXP_MAXP (0xF) // Max packet size //#define EP0_PACKETSIZE 0x10 #define EP0_PACKETSIZE 0x8 #define EP0_MAXPACKETSIZE 0x10 #define UDC_MAX_ENDPOINTS 4 #define WAIT_FOR_SETUP 0 #define DATA_STATE_XMIT 1 #define DATA_STATE_NEED_ZLP 2 #define WAIT_FOR_OUT_STATUS 3 #define DATA_STATE_RECV 4 /* ********************************************************************************************* */ /* IO */ typedef enum ep_type { ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt } ep_type_t; struct lh7a40x_ep { struct usb_ep ep; struct lh7a40x_udc *dev; const struct usb_endpoint_descriptor *desc; struct list_head queue; unsigned long pio_irqs; u8 stopped; u8 bEndpointAddress; u8 bmAttributes; ep_type_t ep_type; u32 fifo; u32 csr1; u32 csr2; }; struct lh7a40x_request { struct usb_request req; struct list_head queue; }; struct lh7a40x_udc { struct usb_gadget gadget; struct usb_gadget_driver *driver; struct device *dev; spinlock_t lock; int ep0state; struct lh7a40x_ep ep[UDC_MAX_ENDPOINTS]; unsigned char usb_address; unsigned req_pending:1, req_std:1, req_config:1; }; extern struct lh7a40x_udc *the_controller; #define ep_is_in(EP) (((EP)->bEndpointAddress&USB_DIR_IN)==USB_DIR_IN) #define ep_index(EP) ((EP)->bEndpointAddress&0xF) #define ep_maxpacket(EP) ((EP)->ep.maxpacket) #endif