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Diffstat (limited to 'include/usb/s3c_udc.h')
| -rw-r--r-- | include/usb/s3c_udc.h | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/include/usb/s3c_udc.h b/include/usb/s3c_udc.h new file mode 100644 index 0000000..14dadc8 --- /dev/null +++ b/include/usb/s3c_udc.h @@ -0,0 +1,175 @@ +/* + * drivers/usb/gadget/s3c_udc.h + * Samsung S3C on-chip full/high speed USB device controllers + * Copyright (C) 2005 for Samsung Electronics + * + * 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 __S3C_USB_GADGET +#define __S3C_USB_GADGET + +#include <asm/errno.h> +#include <linux/usb/ch9.h> +#include <linux/usb/gadget.h> +#include <linux/list.h> +#include <usb/lin_gadget_compat.h> + +#define PHY0_SLEEP (1 << 5) + +/*-------------------------------------------------------------------------*/ +/* DMA bounce buffer size, 16K is enough even for mass storage */ +#define DMA_BUFFER_SIZE (4096*4) + +#define EP0_FIFO_SIZE 64 +#define EP_FIFO_SIZE 512 +#define EP_FIFO_SIZE2 1024 +/* ep0-control, ep1in-bulk, ep2out-bulk, ep3in-int */ +#define S3C_MAX_ENDPOINTS 4 +#define S3C_MAX_HW_ENDPOINTS 16 + +#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 +#define WAIT_FOR_COMPLETE 5 +#define WAIT_FOR_OUT_COMPLETE 6 +#define WAIT_FOR_IN_COMPLETE 7 +#define WAIT_FOR_NULL_COMPLETE 8 + +#define TEST_J_SEL 0x1 +#define TEST_K_SEL 0x2 +#define TEST_SE0_NAK_SEL 0x3 +#define TEST_PACKET_SEL 0x4 +#define TEST_FORCE_ENABLE_SEL 0x5 + +/* ************************************************************************* */ +/* IO + */ + +enum ep_type { + ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt +}; + +struct s3c_ep { + struct usb_ep ep; + struct s3c_udc *dev; + + const struct usb_endpoint_descriptor *desc; + struct list_head queue; + unsigned long pio_irqs; + int len; + void *dma_buf; + + u8 stopped; + u8 bEndpointAddress; + u8 bmAttributes; + + enum ep_type ep_type; + int fifo_num; +}; + +struct s3c_request { + struct usb_request req; + struct list_head queue; +}; + +struct s3c_udc { + struct usb_gadget gadget; + struct usb_gadget_driver *driver; + + struct s3c_plat_otg_data *pdata; + + void *dma_buf[S3C_MAX_ENDPOINTS+1]; + dma_addr_t dma_addr[S3C_MAX_ENDPOINTS+1]; + + int ep0state; + struct s3c_ep ep[S3C_MAX_ENDPOINTS]; + + unsigned char usb_address; + + unsigned req_pending:1, req_std:1, req_config:1; +}; + +extern struct s3c_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) + +/*-------------------------------------------------------------------------*/ +/* #define DEBUG_UDC */ +#ifdef DEBUG_UDC +#define DBG(stuff...) printf("udc: " stuff) +#else +#define DBG(stuff...) do {} while (0) +#endif + +#ifdef DEBUG_S3C_UDC_SETUP +#define DEBUG_SETUP(fmt, args...) printk(fmt, ##args) +#else +#define DEBUG_SETUP(fmt, args...) do {} while (0) +#endif + +#ifdef DEBUG_S3C_UDC_EP0 +#define DEBUG_EP0(fmt, args...) printk(fmt, ##args) +#else +#define DEBUG_EP0(fmt, args...) do {} while (0) +#endif + +#ifdef DEBUG_S3C_UDC +#define DEBUG(fmt, args...) printk(fmt, ##args) +#else +#define DEBUG(fmt, args...) do {} while (0) +#endif + +#ifdef DEBUG_S3C_UDC_ISR +#define DEBUG_ISR(fmt, args...) printk(fmt, ##args) +#else +#define DEBUG_ISR(fmt, args...) do {} while (0) +#endif + +#ifdef DEBUG_S3C_UDC_OUT_EP +#define DEBUG_OUT_EP(fmt, args...) printk(fmt, ##args) +#else +#define DEBUG_OUT_EP(fmt, args...) do {} while (0) +#endif + +#ifdef DEBUG_S3C_UDC_IN_EP +#define DEBUG_IN_EP(fmt, args...) printk(fmt, ##args) +#else +#define DEBUG_IN_EP(fmt, args...) do {} while (0) +#endif + +#define ERR(stuff...) printf("ERR udc: " stuff) +#define WARN(stuff...) printf("WARNING udc: " stuff) +#define INFO(stuff...) printf("INFO udc: " stuff) + +extern void otg_phy_init(struct s3c_udc *dev); +extern void otg_phy_off(struct s3c_udc *dev); + +extern void s3c_udc_ep_set_stall(struct s3c_ep *ep); +extern int s3c_udc_probe(struct s3c_plat_otg_data *pdata); + +struct s3c_plat_otg_data { + int (*phy_control)(int on); + unsigned int regs_phy; + unsigned int regs_otg; + unsigned int usb_phy_ctrl; + unsigned int usb_flags; +}; +#endif |