drivers/usb/host/r8a66597.h - arm/linux-arm-legacy - Git at Google

 /*
  * R8A66597 HCD (Host Controller Driver)
  *
  * Copyright (C) 2006-2007 Renesas Solutions Corp.
  * Portions Copyright (C) 2004 Psion Teklogix (for NetBook PRO)
  * Portions Copyright (C) 2004-2005 David Brownell
  * Portions Copyright (C) 1999 Roman Weissgaerber
  *
  * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
  *
  * 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; version 2 of the License.
  *
  * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  *
  */

 #ifndef __R8A66597_H__
 #define __R8A66597_H__

 #include <linux/clk.h>
 #include <linux/usb/r8a66597.h>

 #define R8A66597_MAX_NUM_PIPE		10
 #define R8A66597_BUF_BSIZE		8
 #define R8A66597_MAX_DEVICE		10
 #define R8A66597_MAX_ROOT_HUB		2
 #define R8A66597_MAX_SAMPLING		5
 #define R8A66597_RH_POLL_TIME		10
 #define R8A66597_MAX_DMA_CHANNEL	2
 #define R8A66597_PIPE_NO_DMA		R8A66597_MAX_DMA_CHANNEL
 #define check_bulk_or_isoc(pipenum)	((pipenum >= 1 && pipenum <= 5))
 #define check_interrupt(pipenum)	((pipenum >= 6 && pipenum <= 9))
 #define make_devsel(addr)		(addr << 12)

 struct r8a66597_pipe_info {
 	unsigned long timer_interval;
 	u16 pipenum;
 	u16 address;	/* R8A66597 HCD usb address */
 	u16 epnum;
 	u16 maxpacket;
 	u16 type;
 	u16 bufnum;
 	u16 buf_bsize;
 	u16 interval;
 	u16 dir_in;
 };

 struct r8a66597_pipe {
 	struct r8a66597_pipe_info info;

 	unsigned long fifoaddr;
 	unsigned long fifosel;
 	unsigned long fifoctr;
 	unsigned long pipectr;
 	unsigned long pipetre;
 	unsigned long pipetrn;
 };

 struct r8a66597_td {
 	struct r8a66597_pipe *pipe;
 	struct urb *urb;
 	struct list_head queue;

 	u16 type;
 	u16 pipenum;
 	int iso_cnt;

 	u16 address;		/* R8A66597's USB address */
 	u16 maxpacket;

 	unsigned zero_packet:1;
 	unsigned short_packet:1;
 	unsigned set_address:1;
 };

 struct r8a66597_device {
 	u16	address;	/* R8A66597's USB address */
 	u16	hub_port;
 	u16	root_port;

 	unsigned short ep_in_toggle;
 	unsigned short ep_out_toggle;
 	unsigned char pipe_cnt[R8A66597_MAX_NUM_PIPE];
 	unsigned char dma_map;

 	enum usb_device_state state;

 	struct usb_device *udev;
 	int usb_address;
 	struct list_head device_list;
 };

 struct r8a66597_root_hub {
 	u32 port;
 	u16 old_syssts;
 	int scount;

 	struct r8a66597_device	*dev;
 };

 struct r8a66597 {
 	spinlock_t lock;
 	void __iomem *reg;
 	struct clk *clk;
 	struct r8a66597_platdata	*pdata;
 	struct r8a66597_device		device0;
 	struct r8a66597_root_hub	root_hub[R8A66597_MAX_ROOT_HUB];
 	struct list_head		pipe_queue[R8A66597_MAX_NUM_PIPE];

 	struct timer_list rh_timer;
 	struct timer_list td_timer[R8A66597_MAX_NUM_PIPE];
 	struct timer_list interval_timer[R8A66597_MAX_NUM_PIPE];

 	unsigned short address_map;
 	unsigned short timeout_map;
 	unsigned short interval_map;
 	unsigned char pipe_cnt[R8A66597_MAX_NUM_PIPE];
 	unsigned char dma_map;
 	unsigned int max_root_hub;

 	struct list_head child_device;
 	unsigned long child_connect_map[4];

 	unsigned bus_suspended:1;
 	unsigned irq_sense_low:1;
 };

 static inline struct r8a66597 *hcd_to_r8a66597(struct usb_hcd *hcd)
 {
 	return (struct r8a66597 *)(hcd->hcd_priv);
 }

 static inline struct usb_hcd *r8a66597_to_hcd(struct r8a66597 *r8a66597)
 {
 	return container_of((void *)r8a66597, struct usb_hcd, hcd_priv);
 }

 static inline struct r8a66597_td *r8a66597_get_td(struct r8a66597 *r8a66597,
 						  u16 pipenum)
 {
 	if (unlikely(list_empty(&r8a66597->pipe_queue[pipenum])))
 		return NULL;

 	return list_entry(r8a66597->pipe_queue[pipenum].next,
 			  struct r8a66597_td, queue);
 }

 static inline struct urb *r8a66597_get_urb(struct r8a66597 *r8a66597,
 					   u16 pipenum)
 {
 	struct r8a66597_td *td;

 	td = r8a66597_get_td(r8a66597, pipenum);
 	return (td ? td->urb : NULL);
 }

 static inline u16 r8a66597_read(struct r8a66597 *r8a66597, unsigned long offset)
 {
 	return ioread16(r8a66597->reg + offset);
 }

 static inline void r8a66597_read_fifo(struct r8a66597 *r8a66597,
 				      unsigned long offset, u16 *buf,
 				      int len)
 {
 	void __iomem *fifoaddr = r8a66597->reg + offset;
 	unsigned long count;

 	if (r8a66597->pdata->on_chip) {
 		count = len / 4;
 		ioread32_rep(fifoaddr, buf, count);

 		if (len & 0x00000003) {
 			unsigned long tmp = ioread32(fifoaddr);
 			memcpy((unsigned char *)buf + count * 4, &tmp,
 			       len & 0x03);
 		}
 	} else {
 		len = (len + 1) / 2;
 		ioread16_rep(fifoaddr, buf, len);
 	}
 }

 static inline void r8a66597_write(struct r8a66597 *r8a66597, u16 val,
 				  unsigned long offset)
 {
 	iowrite16(val, r8a66597->reg + offset);
 }

 static inline void r8a66597_mdfy(struct r8a66597 *r8a66597,
 				 u16 val, u16 pat, unsigned long offset)
 {
 	u16 tmp;
 	tmp = r8a66597_read(r8a66597, offset);
 	tmp = tmp & (~pat);
 	tmp = tmp | val;
 	r8a66597_write(r8a66597, tmp, offset);
 }

 #define r8a66597_bclr(r8a66597, val, offset)	\
 			r8a66597_mdfy(r8a66597, 0, val, offset)
 #define r8a66597_bset(r8a66597, val, offset)	\
 			r8a66597_mdfy(r8a66597, val, 0, offset)

 static inline void r8a66597_write_fifo(struct r8a66597 *r8a66597,
 				       struct r8a66597_pipe *pipe, u16 *buf,
 				       int len)
 {
 	void __iomem *fifoaddr = r8a66597->reg + pipe->fifoaddr;
 	unsigned long count;
 	unsigned char *pb;
 	int i;

 	if (r8a66597->pdata->on_chip) {
 		count = len / 4;
 		iowrite32_rep(fifoaddr, buf, count);

 		if (len & 0x00000003) {
 			pb = (unsigned char *)buf + count * 4;
 			for (i = 0; i < (len & 0x00000003); i++) {
 				if (r8a66597_read(r8a66597, CFIFOSEL) & BIGEND)
 					iowrite8(pb[i], fifoaddr + i);
 				else
 					iowrite8(pb[i], fifoaddr + 3 - i);
 			}
 		}
 	} else {
 		int odd = len & 0x0001;

 		len = len / 2;
 		iowrite16_rep(fifoaddr, buf, len);
 		if (unlikely(odd)) {
 			buf = &buf[len];
 			if (r8a66597->pdata->wr0_shorted_to_wr1)
 				r8a66597_bclr(r8a66597, MBW_16, pipe->fifosel);
 			iowrite8((unsigned char)*buf, fifoaddr);
 			if (r8a66597->pdata->wr0_shorted_to_wr1)
 				r8a66597_bset(r8a66597, MBW_16, pipe->fifosel);
 		}
 	}
 }

 static inline unsigned long get_syscfg_reg(int port)
 {
 	return port == 0 ? SYSCFG0 : SYSCFG1;
 }

 static inline unsigned long get_syssts_reg(int port)
 {
 	return port == 0 ? SYSSTS0 : SYSSTS1;
 }

 static inline unsigned long get_dvstctr_reg(int port)
 {
 	return port == 0 ? DVSTCTR0 : DVSTCTR1;
 }

 static inline unsigned long get_dmacfg_reg(int port)
 {
 	return port == 0 ? DMA0CFG : DMA1CFG;
 }

 static inline unsigned long get_intenb_reg(int port)
 {
 	return port == 0 ? INTENB1 : INTENB2;
 }

 static inline unsigned long get_intsts_reg(int port)
 {
 	return port == 0 ? INTSTS1 : INTSTS2;
 }

 static inline u16 get_rh_usb_speed(struct r8a66597 *r8a66597, int port)
 {
 	unsigned long dvstctr_reg = get_dvstctr_reg(port);

 	return r8a66597_read(r8a66597, dvstctr_reg) & RHST;
 }

 static inline void r8a66597_port_power(struct r8a66597 *r8a66597, int port,
 				       int power)
 {
 	unsigned long dvstctr_reg = get_dvstctr_reg(port);

 	if (r8a66597->pdata->port_power) {
 		r8a66597->pdata->port_power(port, power);
 	} else {
 		if (power)
 			r8a66597_bset(r8a66597, VBOUT, dvstctr_reg);
 		else
 			r8a66597_bclr(r8a66597, VBOUT, dvstctr_reg);
 	}
 }

 static inline u16 get_xtal_from_pdata(struct r8a66597_platdata *pdata)
 {
 	u16 clock = 0;

 	switch (pdata->xtal) {
 	case R8A66597_PLATDATA_XTAL_12MHZ:
 		clock = XTAL12;
 		break;
 	case R8A66597_PLATDATA_XTAL_24MHZ:
 		clock = XTAL24;
 		break;
 	case R8A66597_PLATDATA_XTAL_48MHZ:
 		clock = XTAL48;
 		break;
 	default:
 		printk(KERN_ERR "r8a66597: platdata clock is wrong.\n");
 		break;
 	}

 	return clock;
 }

 #define get_pipectr_addr(pipenum)	(PIPE1CTR + (pipenum - 1) * 2)
 #define get_pipetre_addr(pipenum)	(PIPE1TRE + (pipenum - 1) * 4)
 #define get_pipetrn_addr(pipenum)	(PIPE1TRN + (pipenum - 1) * 4)
 #define get_devadd_addr(address)	(DEVADD0 + address * 2)

 #define enable_irq_ready(r8a66597, pipenum)	\
 	enable_pipe_irq(r8a66597, pipenum, BRDYENB)
 #define disable_irq_ready(r8a66597, pipenum)	\
 	disable_pipe_irq(r8a66597, pipenum, BRDYENB)
 #define enable_irq_empty(r8a66597, pipenum)	\
 	enable_pipe_irq(r8a66597, pipenum, BEMPENB)
 #define disable_irq_empty(r8a66597, pipenum)	\
 	disable_pipe_irq(r8a66597, pipenum, BEMPENB)
 #define enable_irq_nrdy(r8a66597, pipenum)	\
 	enable_pipe_irq(r8a66597, pipenum, NRDYENB)
 #define disable_irq_nrdy(r8a66597, pipenum)	\
 	disable_pipe_irq(r8a66597, pipenum, NRDYENB)

 #endif	/* __R8A66597_H__ */
	/*
	* R8A66597 HCD (Host Controller Driver)
	*
	* Copyright (C) 2006-2007 Renesas Solutions Corp.
	* Portions Copyright (C) 2004 Psion Teklogix (for NetBook PRO)
	* Portions Copyright (C) 2004-2005 David Brownell
	* Portions Copyright (C) 1999 Roman Weissgaerber
	*
	* Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
	*
	* 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; version 2 of the License.
	*
	* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	*
	*/

	#ifndef __R8A66597_H__
	#define __R8A66597_H__

	#include <linux/clk.h>
	#include <linux/usb/r8a66597.h>

	#define R8A66597_MAX_NUM_PIPE 10
	#define R8A66597_BUF_BSIZE 8
	#define R8A66597_MAX_DEVICE 10
	#define R8A66597_MAX_ROOT_HUB 2
	#define R8A66597_MAX_SAMPLING 5
	#define R8A66597_RH_POLL_TIME 10
	#define R8A66597_MAX_DMA_CHANNEL 2
	#define R8A66597_PIPE_NO_DMA R8A66597_MAX_DMA_CHANNEL
	#define check_bulk_or_isoc(pipenum) ((pipenum >= 1 && pipenum <= 5))
	#define check_interrupt(pipenum) ((pipenum >= 6 && pipenum <= 9))
	#define make_devsel(addr) (addr << 12)

	struct r8a66597_pipe_info {
	unsigned long timer_interval;
	u16 pipenum;
	u16 address; /* R8A66597 HCD usb address */
	u16 epnum;
	u16 maxpacket;
	u16 type;
	u16 bufnum;
	u16 buf_bsize;
	u16 interval;
	u16 dir_in;
	};

	struct r8a66597_pipe {
	struct r8a66597_pipe_info info;

	unsigned long fifoaddr;
	unsigned long fifosel;
	unsigned long fifoctr;
	unsigned long pipectr;
	unsigned long pipetre;
	unsigned long pipetrn;
	};

	struct r8a66597_td {
	struct r8a66597_pipe *pipe;
	struct urb *urb;
	struct list_head queue;

	u16 type;
	u16 pipenum;
	int iso_cnt;

	u16 address; /* R8A66597's USB address */
	u16 maxpacket;

	unsigned zero_packet:1;
	unsigned short_packet:1;
	unsigned set_address:1;
	};

	struct r8a66597_device {
	u16 address; /* R8A66597's USB address */
	u16 hub_port;
	u16 root_port;

	unsigned short ep_in_toggle;
	unsigned short ep_out_toggle;
	unsigned char pipe_cnt[R8A66597_MAX_NUM_PIPE];
	unsigned char dma_map;

	enum usb_device_state state;

	struct usb_device *udev;
	int usb_address;
	struct list_head device_list;
	};

	struct r8a66597_root_hub {
	u32 port;
	u16 old_syssts;
	int scount;

	struct r8a66597_device *dev;
	};

	struct r8a66597 {
	spinlock_t lock;
	void __iomem *reg;
	struct clk *clk;
	struct r8a66597_platdata *pdata;
	struct r8a66597_device device0;
	struct r8a66597_root_hub root_hub[R8A66597_MAX_ROOT_HUB];
	struct list_head pipe_queue[R8A66597_MAX_NUM_PIPE];

	struct timer_list rh_timer;
	struct timer_list td_timer[R8A66597_MAX_NUM_PIPE];
	struct timer_list interval_timer[R8A66597_MAX_NUM_PIPE];

	unsigned short address_map;
	unsigned short timeout_map;
	unsigned short interval_map;
	unsigned char pipe_cnt[R8A66597_MAX_NUM_PIPE];
	unsigned char dma_map;
	unsigned int max_root_hub;

	struct list_head child_device;
	unsigned long child_connect_map[4];

	unsigned bus_suspended:1;
	unsigned irq_sense_low:1;
	};

	static inline struct r8a66597 hcd_to_r8a66597(struct usb_hcd hcd)
	{
	return (struct r8a66597 *)(hcd->hcd_priv);
	}

	static inline struct usb_hcd r8a66597_to_hcd(struct r8a66597 r8a66597)
	{
	return container_of((void *)r8a66597, struct usb_hcd, hcd_priv);
	}

	static inline struct r8a66597_td r8a66597_get_td(struct r8a66597 r8a66597,
	u16 pipenum)
	{
	if (unlikely(list_empty(&r8a66597->pipe_queue[pipenum])))
	return NULL;

	return list_entry(r8a66597->pipe_queue[pipenum].next,
	struct r8a66597_td, queue);
	}

	static inline struct urb r8a66597_get_urb(struct r8a66597 r8a66597,
	u16 pipenum)
	{
	struct r8a66597_td *td;

	td = r8a66597_get_td(r8a66597, pipenum);
	return (td ? td->urb : NULL);
	}

	static inline u16 r8a66597_read(struct r8a66597 *r8a66597, unsigned long offset)
	{
	return ioread16(r8a66597->reg + offset);
	}

	static inline void r8a66597_read_fifo(struct r8a66597 *r8a66597,
	unsigned long offset, u16 *buf,
	int len)
	{
	void __iomem *fifoaddr = r8a66597->reg + offset;
	unsigned long count;

	if (r8a66597->pdata->on_chip) {
	count = len / 4;
	ioread32_rep(fifoaddr, buf, count);

	if (len & 0x00000003) {
	unsigned long tmp = ioread32(fifoaddr);
	memcpy((unsigned char )buf + count 4, &tmp,
	len & 0x03);
	}
	} else {
	len = (len + 1) / 2;
	ioread16_rep(fifoaddr, buf, len);
	}
	}

	static inline void r8a66597_write(struct r8a66597 *r8a66597, u16 val,
	unsigned long offset)
	{
	iowrite16(val, r8a66597->reg + offset);
	}

	static inline void r8a66597_mdfy(struct r8a66597 *r8a66597,
	u16 val, u16 pat, unsigned long offset)
	{
	u16 tmp;
	tmp = r8a66597_read(r8a66597, offset);
	tmp = tmp & (~pat);
	tmp = tmp \| val;
	r8a66597_write(r8a66597, tmp, offset);
	}

	#define r8a66597_bclr(r8a66597, val, offset) \
	r8a66597_mdfy(r8a66597, 0, val, offset)
	#define r8a66597_bset(r8a66597, val, offset) \
	r8a66597_mdfy(r8a66597, val, 0, offset)

	static inline void r8a66597_write_fifo(struct r8a66597 *r8a66597,
	struct r8a66597_pipe pipe, u16 buf,
	int len)
	{
	void __iomem *fifoaddr = r8a66597->reg + pipe->fifoaddr;
	unsigned long count;
	unsigned char *pb;
	int i;

	if (r8a66597->pdata->on_chip) {
	count = len / 4;
	iowrite32_rep(fifoaddr, buf, count);

	if (len & 0x00000003) {
	pb = (unsigned char )buf + count 4;
	for (i = 0; i < (len & 0x00000003); i++) {
	if (r8a66597_read(r8a66597, CFIFOSEL) & BIGEND)
	iowrite8(pb[i], fifoaddr + i);
	else
	iowrite8(pb[i], fifoaddr + 3 - i);
	}
	}
	} else {
	int odd = len & 0x0001;

	len = len / 2;
	iowrite16_rep(fifoaddr, buf, len);
	if (unlikely(odd)) {
	buf = &buf[len];
	if (r8a66597->pdata->wr0_shorted_to_wr1)
	r8a66597_bclr(r8a66597, MBW_16, pipe->fifosel);
	iowrite8((unsigned char)*buf, fifoaddr);
	if (r8a66597->pdata->wr0_shorted_to_wr1)
	r8a66597_bset(r8a66597, MBW_16, pipe->fifosel);
	}
	}
	}

	static inline unsigned long get_syscfg_reg(int port)
	{
	return port == 0 ? SYSCFG0 : SYSCFG1;
	}

	static inline unsigned long get_syssts_reg(int port)
	{
	return port == 0 ? SYSSTS0 : SYSSTS1;
	}

	static inline unsigned long get_dvstctr_reg(int port)
	{
	return port == 0 ? DVSTCTR0 : DVSTCTR1;
	}

	static inline unsigned long get_dmacfg_reg(int port)
	{
	return port == 0 ? DMA0CFG : DMA1CFG;
	}

	static inline unsigned long get_intenb_reg(int port)
	{
	return port == 0 ? INTENB1 : INTENB2;
	}

	static inline unsigned long get_intsts_reg(int port)
	{
	return port == 0 ? INTSTS1 : INTSTS2;
	}

	static inline u16 get_rh_usb_speed(struct r8a66597 *r8a66597, int port)
	{
	unsigned long dvstctr_reg = get_dvstctr_reg(port);

	return r8a66597_read(r8a66597, dvstctr_reg) & RHST;
	}

	static inline void r8a66597_port_power(struct r8a66597 *r8a66597, int port,
	int power)
	{
	unsigned long dvstctr_reg = get_dvstctr_reg(port);

	if (r8a66597->pdata->port_power) {
	r8a66597->pdata->port_power(port, power);
	} else {
	if (power)
	r8a66597_bset(r8a66597, VBOUT, dvstctr_reg);
	else
	r8a66597_bclr(r8a66597, VBOUT, dvstctr_reg);
	}
	}

	static inline u16 get_xtal_from_pdata(struct r8a66597_platdata *pdata)
	{
	u16 clock = 0;

	switch (pdata->xtal) {
	case R8A66597_PLATDATA_XTAL_12MHZ:
	clock = XTAL12;
	break;
	case R8A66597_PLATDATA_XTAL_24MHZ:
	clock = XTAL24;
	break;
	case R8A66597_PLATDATA_XTAL_48MHZ:
	clock = XTAL48;
	break;
	default:
	printk(KERN_ERR "r8a66597: platdata clock is wrong.\n");
	break;
	}

	return clock;
	}

	#define get_pipectr_addr(pipenum) (PIPE1CTR + (pipenum - 1) * 2)
	#define get_pipetre_addr(pipenum) (PIPE1TRE + (pipenum - 1) * 4)
	#define get_pipetrn_addr(pipenum) (PIPE1TRN + (pipenum - 1) * 4)
	#define get_devadd_addr(address) (DEVADD0 + address * 2)

	#define enable_irq_ready(r8a66597, pipenum) \
	enable_pipe_irq(r8a66597, pipenum, BRDYENB)
	#define disable_irq_ready(r8a66597, pipenum) \
	disable_pipe_irq(r8a66597, pipenum, BRDYENB)
	#define enable_irq_empty(r8a66597, pipenum) \
	enable_pipe_irq(r8a66597, pipenum, BEMPENB)
	#define disable_irq_empty(r8a66597, pipenum) \
	disable_pipe_irq(r8a66597, pipenum, BEMPENB)
	#define enable_irq_nrdy(r8a66597, pipenum) \
	enable_pipe_irq(r8a66597, pipenum, NRDYENB)
	#define disable_irq_nrdy(r8a66597, pipenum) \
	disable_pipe_irq(r8a66597, pipenum, NRDYENB)

	#endif /* __R8A66597_H__ */