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/* Driver for Realtek PCI-Express card reader
* Header file
*
* Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved.
*
* 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, 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, see <http://www.gnu.org/licenses/>.
*
* Author:
* wwang (wei_wang@realsil.com.cn)
* No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China
*/
#ifndef __REALTEK_RTSX_H
#define __REALTEK_RTSX_H
#include <asm/io.h>
#include <asm/bitops.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/mutex.h>
#include <linux/cdrom.h>
#include <linux/workqueue.h>
#include <linux/timer.h>
#include <linux/time.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_devinfo.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_host.h>
#include "debug.h"
#include "trace.h"
#include "general.h"
#define CR_DRIVER_NAME "rts_pstor"
#define pci_get_bus_and_slot(bus, devfn) \
pci_get_domain_bus_and_slot(0, (bus), (devfn))
/*
* macros for easy use
*/
#define rtsx_writel(chip, reg, value) \
iowrite32(value, (chip)->rtsx->remap_addr + reg)
#define rtsx_readl(chip, reg) \
ioread32((chip)->rtsx->remap_addr + reg)
#define rtsx_writew(chip, reg, value) \
iowrite16(value, (chip)->rtsx->remap_addr + reg)
#define rtsx_readw(chip, reg) \
ioread16((chip)->rtsx->remap_addr + reg)
#define rtsx_writeb(chip, reg, value) \
iowrite8(value, (chip)->rtsx->remap_addr + reg)
#define rtsx_readb(chip, reg) \
ioread8((chip)->rtsx->remap_addr + reg)
#define rtsx_read_config_byte(chip, where, val) \
pci_read_config_byte((chip)->rtsx->pci, where, val)
#define rtsx_write_config_byte(chip, where, val) \
pci_write_config_byte((chip)->rtsx->pci, where, val)
#define wait_timeout_x(task_state, msecs) \
do { \
set_current_state((task_state)); \
schedule_timeout((msecs) * HZ / 1000); \
} while (0)
#define wait_timeout(msecs) wait_timeout_x(TASK_INTERRUPTIBLE, (msecs))
#define STATE_TRANS_NONE 0
#define STATE_TRANS_CMD 1
#define STATE_TRANS_BUF 2
#define STATE_TRANS_SG 3
#define TRANS_NOT_READY 0
#define TRANS_RESULT_OK 1
#define TRANS_RESULT_FAIL 2
#define SCSI_LUN(srb) ((srb)->device->lun)
typedef unsigned long DELAY_PARA_T;
struct rtsx_chip;
struct rtsx_dev {
struct pci_dev *pci;
/* pci resources */
unsigned long addr;
void __iomem *remap_addr;
int irq;
/* locks */
spinlock_t reg_lock;
struct task_struct *ctl_thread; /* the control thread */
struct task_struct *polling_thread; /* the polling thread */
/* mutual exclusion and synchronization structures */
struct completion cmnd_ready; /* to sleep thread on */
struct completion control_exit; /* control thread exit */
struct completion polling_exit; /* polling thread exit */
struct completion notify; /* thread begin/end */
struct completion scanning_done; /* wait for scan thread */
wait_queue_head_t delay_wait; /* wait during scan, reset */
struct mutex dev_mutex;
/* host reserved buffer */
void *rtsx_resv_buf;
dma_addr_t rtsx_resv_buf_addr;
char trans_result;
char trans_state;
struct completion *done;
/* Whether interrupt handler should care card cd info */
u32 check_card_cd;
struct rtsx_chip *chip;
};
typedef struct rtsx_dev rtsx_dev_t;
/* Convert between rtsx_dev and the corresponding Scsi_Host */
static inline struct Scsi_Host *rtsx_to_host(struct rtsx_dev *dev)
{
return container_of((void *) dev, struct Scsi_Host, hostdata);
}
static inline struct rtsx_dev *host_to_rtsx(struct Scsi_Host *host)
{
return (struct rtsx_dev *) host->hostdata;
}
static inline void get_current_time(u8 *timeval_buf, int buf_len)
{
struct timeval tv;
if (!timeval_buf || (buf_len < 8))
return;
do_gettimeofday(&tv);
timeval_buf[0] = (u8)(tv.tv_sec >> 24);
timeval_buf[1] = (u8)(tv.tv_sec >> 16);
timeval_buf[2] = (u8)(tv.tv_sec >> 8);
timeval_buf[3] = (u8)(tv.tv_sec);
timeval_buf[4] = (u8)(tv.tv_usec >> 24);
timeval_buf[5] = (u8)(tv.tv_usec >> 16);
timeval_buf[6] = (u8)(tv.tv_usec >> 8);
timeval_buf[7] = (u8)(tv.tv_usec);
}
/* The scsi_lock() and scsi_unlock() macros protect the sm_state and the
* single queue element srb for write access */
#define scsi_unlock(host) spin_unlock_irq(host->host_lock)
#define scsi_lock(host) spin_lock_irq(host->host_lock)
#define lock_state(chip) spin_lock_irq(&((chip)->rtsx->reg_lock))
#define unlock_state(chip) spin_unlock_irq(&((chip)->rtsx->reg_lock))
/* struct scsi_cmnd transfer buffer access utilities */
enum xfer_buf_dir {TO_XFER_BUF, FROM_XFER_BUF};
int rtsx_read_pci_cfg_byte(u8 bus, u8 dev, u8 func, u8 offset, u8 *val);
#endif /* __REALTEK_RTSX_H */
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