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/*
/////////////////////////////////////////////////////////////////////
////                                                             ////
////  Include file for OpenCores ATA Controller (OCIDEC)         ////
////                                                             ////
////  File    : ata.h                                            ////
////  Function: c-include file                                   ////
////                                                             ////
////  Authors: Richard Herveille (rherveille@opencores)          ////
////           www.opencores.org                                 ////
////                                                             ////
/////////////////////////////////////////////////////////////////////
////                                                             ////
//// Copyright (C) 2002 Richard Herveille                        ////
////                    rherveille@opencores.org                 ////
////                                                             ////
//// This source file may be used and distributed without        ////
//// restriction provided that this copyright statement is not   ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer.////
////                                                             ////
////     THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY     ////
//// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED   ////
//// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS   ////
//// FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHOR      ////
//// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,         ////
//// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES    ////
//// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE   ////
//// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR        ////
//// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF  ////
//// LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT  ////
//// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT  ////
//// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE         ////
//// POSSIBILITY OF SUCH DAMAGE.                                 ////
////                                                             ////
/////////////////////////////////////////////////////////////////////
*/
 
/*
 * Definitions for the Opencores ATA Controller Core
 */
 
#ifndef __OC_ATA_H
#define __OC_ATA_H
 
 
#ifndef REG32
#define REG32(adr) *((volatile unsigned long *)(adr))
#endif
 
 
typedef unsigned long basetype;
 
/* --- Register definitions --- */
 
/* ----- Core Registers                                              */
#define ATA_CTRL  0x00         /* Control register                   */
#define ATA_STAT  0x04         /* Status register                    */
#define ATA_PCTR  0x08         /* PIO command timing register        */
#define ATA_PFTR0 0x0c         /* PIO Fast Timing register Device0   */
#define ATA_PFTR1 0x10         /* PIO Fast Timing register Device1   */
#define ATA_DTR0  0x14         /* DMA Timing register Device2        */
#define ATA_DTR1  0x18         /* DMA Timing register Device1        */
#define ATA_DTXB  0x3c         /* DMA Transmit buffer                */
#define ATA_RXB   0x3c         /* DMA Receive buffer                 */
 
/* ----- ATA Registers                                               */
#define ATA_ASR   0x78         /* Alternate Status Register      (R) */
#define ATA_CR    0x5c         /* Command Register               (W) */
#define ATA_CHR   0x54         /* Cylinder High Register       (R/W) */
#define ATA_CLR   0x50         /* Cylinder Low Register        (R/W) */
#define ATA_DR    0x40         /* Data Register                      */
#define ATA_DCR   0x78         /* Device Control Register        (W) */
#define ATA_DHR   0x58         /* Device/Head Register         (R/W) */
#define ATA_ERR   0x44         /* Error Register                 (R) */
#define ATA_FR    0x44         /* Features Register              (W) */
#define ATA_SCR   0x48         /* Sector Count Register        (R/W) */
#define ATA_SNR   0x4c         /* Sector Number Register       (R/W) */
#define ATA_SR    0x5c         /* Status Register                (R) */
#define ATA_DA    0x7c         /* Device Address Register        (R) */
             /* ATA/ATAPI-5 does not describe Device Status Register */
 
/* ----------------------------                                       */
/* ----- Bits definitions -----                                       */
/* ----------------------------                                       */
 
/* ----- Core Control register                                        */
                                /* bits 31-16 are reserved            */
#define ATA_DMA_EN  (0<<15)     /* DMAen, DMA enable bit              */
                                /* bit 14 is reserved                 */
#define ATA_DMA_WR  (1<<14)     /* DMA Write transaction              */
#define ATA_DMA_RD  (0<<14)     /* DMA Read transaction               */
                                /* bits 13-10 are reserved            */
#define ATA_BELEC1  (1<< 9)     /* Big-Little endian conversion       */
                                /* enable bit for Device1             */
#define ATA_BELEC0  (1<< 8)     /* Big-Little endian conversion       */
                                /* enable bit for Device0             */
#define ATA_IDE_EN  (1<< 7)     /* IDE core enable bit                */
#define ATA_FTE1    (1<< 6)     /* Device1 Fast PIO Timing Enable bit */
#define ATA_FTE0    (1<< 5)     /* Device0 Fast PIO Timing Enable bit */
#define ATA_PWPP    (1<< 4)     /* PIO Write Ping-Pong Enable bit     */
#define ATA_IORDY_FTE1 (1<< 3)  /* Device1 Fast PIO Timing IORDY      */
                                /* enable bit                         */
#define ATA_IORDY_FTE0 (1<< 2)  /* Device0 Fast PIO Timing IORDY      */
                                /* enable bit                         */
#define ATA_IORDY   (1<< 1)     /* PIO Command Timing IORDY enable bit*/
#define ATA_RST     (1<< 0)     /* ATA Reset bit                      */
 
/* ----- Core Status register                                         */
#define ATA_DEVID   0xf0000000  /* bits 31-28 Device-ID               */
#define ATA_REVNO   0x0f000000  /* bits 27-24 Revision number         */
                                /* bits 23-16 are reserved            */
#define ATA_DMA_TIP (1<<15)     /* DMA Transfer in progress           */
                                /* bits 14-10 are reserved            */
#define ATA_DRBE    (1<<10)     /* DMA Receive buffer empty           */
#define ATA_DTBF    (1<< 9)     /* DMA Transmit buffer full           */
#define ATA_DMARQ   (1<< 8)     /* DMARQ Line status                  */
#define ATA_PIO_TIP (1<< 7      /* PIO Transfer in progress           */
#define ATA_PWPPF   (1<< 6)     /* PIO write ping-pong full           */
                                /* bits 5-1 are reserved              */
#define ATA_IDEIS  (1<< 0)      /* IDE Interrupt status               */
 
 
/* -----  Core Timing registers                                       */
#define ATA_TEOC       24       /* End of cycle time          DMA/PIO */
#define ATA_T4         16       /* DIOW- data hold time           PIO */
#define ATA_T2          8       /* DIOR-/DIOW- pulse width        PIO */
#define ATA_TD          8       /* DIOR-/DIOW- pulse width        DMA */
#define ATA_T1          0       /* Address valid to DIOR-/DIOW-   PIO */
#define ATA_TM          0       /* CS[1:0]valid to DIOR-/DIOW-    DMA */
 
 
/* ----- ATA (Alternate) Status Register                              */
#define ATA_SR_BSY  0x80        /* Busy                               */
#define ATA_SR_DRDY 0x40        /* Device Ready                       */
#define ATA_SR_DF   0x20        /* Device Fault                       */
#define ATA_SR_DSC  0x10        /* Device Seek Complete               */
#define ATA_SR_DRQ  0x08        /* Data Request                       */
#define ATA_SR_COR  0x04        /* Corrected data (obsolete)          */
#define ATA_SR_IDX  0x02        /*                (obsolete)          */
#define ATA_SR_ERR  0x01        /* Error                              */
 
/* ----- ATA Device Control Register                                  */
                                /* bits 7-3 are reserved              */
#define ATA_DCR_RST 0x04        /* Software reset   (RST=1, reset)    */
#define ATA_DCR_IEN 0x02        /* Interrupt Enable (IEN=0, enabled)  */
                                /* always write a '0' to bit0         */
 
/* ----- ATA Device Address Register                                  */
/* All values in this register are one's complement (i.e. inverted)   */
#define ATA_DAR_WTG 0x40        /* Write Gate                         */
#define ATA_DAR_H   0x3c        /* Head Select                        */
#define ATA_DAR_DS1 0x02        /* Drive select 1                     */
#define ATA_DAR_DS0 0x01        /* Drive select 0                     */
 
/* ----- Device/Head Register                                         */
#define ATA_DHR_LBA 0x40        /* LBA/CHS mode ('1'=LBA mode)        */
#define ATA_DHR_DEV 0x10        /* Device       ('0'=dev0, '1'=dev1)  */
#define ATA_DHR_H   0x0f        /* Head Select                        */
 
/* ----- Error Register                                               */
#define ATA_ERR_BBK  0x80        /* Bad Block                          */
#define ATA_ERR_UNC  0x40       /* Uncorrectable Data Error           */
#define ATA_ERR_IDNF 0x10       /* ID Not Found                       */
#define ATA_ERR_ABT  0x04       /* Aborted Command                    */
#define ATA_ERR_TON  0x02       /* Track0 Not Found                   */
#define ATA_ERR_AMN  0x01       /* Address Mark Not Found             */
 
 
/* ----------------------------                                       */
/* ----- ATA commands     -----                                       */
/* ----------------------------                                       */
#define CFA_ERASE_SECTORS                0xC0
#define CFA_REQUEST_EXTENDED_ERROR_CODE  0x03
#define CFA_TRANSLATE_SECTOR             0x87
#define CFA_WRITE_MULTIPLE_WITHOUT_ERASE 0xCD
#define CFA_WRITE_SECTORS_WITHOUT_ERASE  0x38
#define CHECK_POWER_MODE                 0xE5
#define DEVICE_RESET                     0x08
#define DOWNLOAD_MICROCODE               0x92
#define EXECUTE_DEVICE_DIAGNOSTIC        0x90
#define FLUSH_CACHE                      0xE7
#define GET_MEDIA_STATUS                 0xDA
#define IDENTIFY_DEVICE                  0xEC
#define IDENTIFY_PACKET_DEVICE           0xA1
#define IDLE                             0xE3
#define IDLE_IMMEDIATE                   0xE1
#define INITIALIZE_DEVICE_PARAMETERS     0x91
#define MEDIA_EJECT                      0xED
#define MEDIA_LOCK                       0xDE
#define MEDIA_UNLOCK                     0xDF
#define NOP                              0x00
#define PACKET                           0xA0
#define READ_BUFFER                      0xE4
#define READ_DMA                         0xC8
#define READ_DMA_QUEUED                  0xC7
#define READ_MULTIPLE                    0xC4
#define READ_NATIVE_MAX_ADDRESS          0xF8
#define READ_SECTOR                      0x20
#define READ_SECTORS                     0x20
#define READ_VERIFY_SECTOR               0x40
#define READ_VERIFY_SECTORS              0x40
#define SECURITY_DISABLE_PASSWORD        0xF6
#define SECURITY_ERASE_PREPARE           0xF3
#define SECURITY_ERASE_UNIT              0xF4
#define SECURITY_FREEZE_LOCK             0xF5
#define SECURITY_SET_PASSWORD            0xF1
#define SECURITY_UNLOCK                  0xF2
#define SEEK                             0x70
#define SERVICE                          0xA2
#define SET_FEATURES                     0xEF
#define SET_MAX                          0xF9
#define SET_MULTIPLE_MODE                0xC6
#define SLEEP                            0xE6
#define SMART                            0xB0
#define STANDBY                          0xE2
#define STANDBY_IMMEDIATE                0xE0
#define WRITE_BUFFER                     0xE8
#define WRITE_DMA                        0xCA
#define WRITE_DMA_QUEUED                 0xCC
#define WRITE_MULTIPLE                   0xC5
#define WRITE_SECTOR                     0x30
#define WRITE_SECTORS                    0x30
 
 
/* SET_FEATURES has a number of sub-commands (in Features Register)   */
#define CFA_ENABLE_8BIT_PIO_TRANSFER_MODE       0x01
#define ENABLE_WRITE_CACHE                      0x02
#define SET_TRANSFER_MODE_SECTOR_COUNT_REG      0x03
#define ENABLE_ADVANCED_POWER_MANAGEMENT        0x05
#define ENABLE_POWERUP_IN_STANDBY_FEATURE_SET   0x06
#define POWERUP_IN_STANDBY_FEATURE_SET_SPINUP   0x07
#define CFA_ENABLE_POWER_MODE1                  0x0A
#define DISABLE_MEDIA_STATUS_NOTIFICATION       0x31
#define DISABLE_READ_LOOKAHEAD                  0x55
#define ENABLE_RELEASE_INTERRUPT                0x5D
#define ENABLE_SERVICE_INTERRUPT                0x5E
#define DISABLE_REVERTING_TO_POWERON_DEFAULTS   0x66
#define CFA_DISABLE_8BIT_PIO_TRANSFER_MODE      0x81
#define DISABLE_WRITE_CACHE                     0x82
#define DISABLE_ADVANCED_POWER_MANAGEMENT       0x85
#define DISABLE_POWERUP_IN_STANDBY_FEATURE_SET  0x86
#define CFA_DISABLE_POWER_MODE1                 0x8A
#define ENABLE_MEDIA_STATUS_NOTIFICATION        0x95
#define ENABLE_READ_LOOKAHEAD_FEATURE           0xAA
#define ENABLE_REVERTING_TO_POWERON_DEFAULTS    0xCC
#define DISABLE_RELEASE_INTERRUPT               0xDD
#define DISABLE_SERVICE_INTERRUPT               0xDE
 
/* SET_MAX has a number of sub-commands (in Features Register)        */
#define SET_MAX_ADDRESS                         0x00
#define SET_MAX_SET_PASSWORD                    0x01
#define SET_MAX_LOCK                            0x02
#define SET_MAX_UNLOCK                          0x03
#define SET_MAX_FREEZE_LOCK                     0x04
 
/* SET_MAX has a number of sub-commands (in Features Register)        */
#define SMART_READ_DATA                         0xD0
#define SMART_ATTRIBITE_AUTOSAVE                0xD1
#define SMART_SAVE_ATTRIBUTE_VALUES             0xD3
#define SMART_EXECUTE_OFFLINE_IMMEDIATE         0xD4
#define SMART_READ_LOG                          0xD5
#define SMART_WRITE_LOG                         0xD6
#define SMART_ENABLE_OPERATIONS                 0xD8
#define SMART_DISABLE_OPERATIONS                0xD9
#define SMART_RETURN_STATUS                     0xDA
 
/* ----------------------------                                       */
/* ----- Structs          -----                                       */
/* ----------------------------                                       */
 
/* ----------------------------                                       */
/* ----- Macros           -----                                       */
/* ----------------------------                                       */
 
#define ata_astatus(base)      (REG32(base + ATA_ASR))
#define ata_status(base)       (REG32(base + ATA_SR))
#define ata_error(base)        (REG32(base + ATA_ERR))
#define ata_cmd(base)          (REG32(base + ATA_CR))
 
#define ata_dev_busy(base)     (ata_astatus(base) & ATA_SR_BSY)
#define ata_dev_cmdrdy(base)   (ata_astatus(base) & (~ATA_SR_BSY & ATA_SR_DRDY))
#define ata_dev_datrdy(base)   (ata_astatus(base) & ATA_SR_DRQ)
 
 
 
/*
  INTERNALS
*/
 
/* -------------------                                                */
/* ----- defines -----                                                */
/* -------------------                                                */
#define READ 0
#define WRITE 1
 
#define FMODE_READ 0
#define FMODE_WRITE 1
 
#define SET (1<<31)
#define CLR 0
 
 
#define PIO4 0x02
#define PIO3 0x01
 
/*define MAJOR, MINOR numbers                                         */
#define MAJOR(dev) (dev >> 8)
#define MINOR(dev) (dev & 0xff)
 
#define MINOR_DEV0 0x00
#define MINOR_DEV1 0X80
 
 
#define ATA_IOCTL_EXEC_CMD        0
#define ATA_IOCTL_READ            1
#define ATA_IOCTL_ENABLE_HOST     2
#define ATA_IOCTL_IDENTIFY_DEVICE 3
#define ATA_IOCTL_IDENTIFY_HOST   4
#define ATA_IOCTL_SELECT_DEVICE   5
#define ATA_IOCTL_SET_RST         6
#define ATA_IOCTL_SET_PIO         7
#define ATA_IOCTL_SET_FEATURES    8
#define ATA_IOCTL_SET_FTE         9
 
#define ARG_HW_RST  0
#define ARG_SW_RST  1
#define ARG_DEV_RST 2
 
/* PIO numbers and PIO timing (in ns)                                 */
#define ARG_PIO4 4
#define ARG_PIO3 3
#define ARG_PIO2 2
#define ARG_PIO1 1
#define ARG_PIO0 0
 
/* register transfer timings                                          */
#define PIO0_RT0  600
#define PIO0_RT1  70
#define PIO0_RT2  290
#define PIO0_RT2I 0
#define PIO0_RT4  30
#define PIO0_RT9  20
 
#define PIO1_RT0  383
#define PIO1_RT1  50
#define PIO1_RT2  290
#define PIO1_RT2I 0
#define PIO1_RT4  20
#define PIO1_RT9  15
 
#define PIO2_RT0  330
#define PIO2_RT1  30
#define PIO2_RT2  290
#define PIO2_RT2I 0
#define PIO2_RT4  15
#define PIO2_RT9  10
 
#define PIO3_RT0  180
#define PIO3_RT1  30
#define PIO3_RT2  80
#define PIO3_RT2I 70
#define PIO3_RT4  10
#define PIO3_RT9  10
 
#define PIO4_RT0  120
#define PIO4_RT1  25
#define PIO4_RT2  70
#define PIO4_RT2I 25
#define PIO4_RT4  10
#define PIO4_RT9  10
 
/* data transfer timings                                              */
#define PIO0_DT0  600
#define PIO0_DT1  70
#define PIO0_DT2  165
#define PIO0_DT2I 0
#define PIO0_DT4  30
#define PIO0_DT9  20
 
#define PIO1_DT0  383
#define PIO1_DT1  50
#define PIO1_DT2  125
#define PIO1_DT2I 0
#define PIO1_DT4  20
#define PIO1_DT9  15
 
#define PIO2_DT0  240
#define PIO2_DT1  30
#define PIO2_DT2  100
#define PIO2_DT2I 0
#define PIO2_DT4  15
#define PIO2_DT9  10
 
#define PIO3_DT0  180
#define PIO3_DT1  30
#define PIO3_DT2  80
#define PIO3_DT2I 70
#define PIO3_DT4  10
#define PIO3_DT9  10
 
#define PIO4_DT0  120
#define PIO4_DT1  25
#define PIO4_DT2  70
#define PIO4_DT2I 25
#define PIO4_DT4  10
#define PIO4_DT9  10
 
 
 
/* error numbers                                                      */
#define EINVAL -1
#define EIOCTLIARG -2
 
#define EOPENIDEV  -3
#define EOPENIHOST -4
#define EOPENNODEV -5
 
 
 
 
/* ------------------------------                                     */
/* ----- structs & typedefs -----                                     */
/* ------------------------------                                     */
struct inode {
  unsigned short i_rdev;
};
 
struct file {
  unsigned long f_mode;
  unsigned long f_flags;
};
 
typedef unsigned int dev_t;
 
struct request {
  dev_t         rq_dev;
  int           cmd;
  unsigned long sector;
  unsigned long nr_sectors;
  unsigned char *buffer;
};
 
 
/* ----------------------------                                       */
/* ----- Prototypes       -----                                       */
/* ----------------------------                                       */
int ata_open(struct inode *inode, struct file *filp);
int ata_open_device_not_found(struct inode *inode);
 
int ata_release(struct inode *inode, struct file *filp);
 
int ata_ioctl(struct inode *inode, struct file *filp, unsigned command, unsigned long argument);
unsigned long ata_calc_pio_timing(short t0, short t1, short t2, short t4, short t2i, short t9);
 
int ata_read_dport(unsigned long base);
 
int ata_check_media_change(dev_t dev);
 
int ata_revalidate(dev_t dev);
 
int ata_request(struct inode *inode, struct file *filp, struct request *request);
 
 
#endif

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[/] [openrisc/] [trunk/] [bootloaders/] [orpmon/] [include/] [ata.h] - Blame information for rev 249

Line No.	Rev	Author	Line
1	2	marcus.erl	`/*`
2			`/////////////////////////////////////////////////////////////////////`
3			`//// ////`
4			`//// Include file for OpenCores ATA Controller (OCIDEC) ////`
5			`//// ////`
6			`//// File : ata.h ////`
7			`//// Function: c-include file ////`
8			`//// ////`
9			`//// Authors: Richard Herveille (rherveille@opencores) ////`
10			`//// www.opencores.org ////`
11			`//// ////`
12			`/////////////////////////////////////////////////////////////////////`
13			`//// ////`
14			`//// Copyright (C) 2002 Richard Herveille ////`
15			`//// rherveille@opencores.org ////`
16			`//// ////`
17			`//// This source file may be used and distributed without ////`
18			`//// restriction provided that this copyright statement is not ////`
19			`//// removed from the file and that any derivative work contains ////`
20			`//// the original copyright notice and the associated disclaimer.////`
21			`//// ////`
22			//// THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY ////
23			`//// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED ////`
24			`//// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS ////`
25			`//// FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHOR ////`
26			`//// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, ////`
27			`//// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES ////`
28			`//// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE ////`
29			`//// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR ////`
30			`//// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF ////`
31			`//// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ////`
32			`//// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT ////`
33			`//// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE ////`
34			`//// POSSIBILITY OF SUCH DAMAGE. ////`
35			`//// ////`
36			`/////////////////////////////////////////////////////////////////////`
37			`*/`
38
39			`/*`
40			`* Definitions for the Opencores ATA Controller Core`
41			`*/`
42
43			`#ifndef __OC_ATA_H`
44			`#define __OC_ATA_H`
45
46
47			`#ifndef REG32`
48			`#define REG32(adr) ((volatile unsigned long )(adr))`
49			`#endif`
50
51
52			`typedef unsigned long basetype;`
53
54			`/* --- Register definitions --- */`
55
56			`/* ----- Core Registers */`
57			`#define ATA_CTRL 0x00 /* Control register */`
58			`#define ATA_STAT 0x04 /* Status register */`
59			`#define ATA_PCTR 0x08 /* PIO command timing register */`
60			`#define ATA_PFTR0 0x0c /* PIO Fast Timing register Device0 */`
61			`#define ATA_PFTR1 0x10 /* PIO Fast Timing register Device1 */`
62			`#define ATA_DTR0 0x14 /* DMA Timing register Device2 */`
63			`#define ATA_DTR1 0x18 /* DMA Timing register Device1 */`
64			`#define ATA_DTXB 0x3c /* DMA Transmit buffer */`
65			`#define ATA_RXB 0x3c /* DMA Receive buffer */`
66
67			`/* ----- ATA Registers */`
68			`#define ATA_ASR 0x78 /* Alternate Status Register (R) */`
69			`#define ATA_CR 0x5c /* Command Register (W) */`
70			`#define ATA_CHR 0x54 /* Cylinder High Register (R/W) */`
71			`#define ATA_CLR 0x50 /* Cylinder Low Register (R/W) */`
72			`#define ATA_DR 0x40 /* Data Register */`
73			`#define ATA_DCR 0x78 /* Device Control Register (W) */`
74			`#define ATA_DHR 0x58 /* Device/Head Register (R/W) */`
75			`#define ATA_ERR 0x44 /* Error Register (R) */`
76			`#define ATA_FR 0x44 /* Features Register (W) */`
77			`#define ATA_SCR 0x48 /* Sector Count Register (R/W) */`
78			`#define ATA_SNR 0x4c /* Sector Number Register (R/W) */`
79			`#define ATA_SR 0x5c /* Status Register (R) */`
80			`#define ATA_DA 0x7c /* Device Address Register (R) */`
81			`/* ATA/ATAPI-5 does not describe Device Status Register */`
82
83			`/* ---------------------------- */`
84			`/* ----- Bits definitions ----- */`
85			`/* ---------------------------- */`
86
87			`/* ----- Core Control register */`
88			`/* bits 31-16 are reserved */`
89			`#define ATA_DMA_EN (0<<15) /* DMAen, DMA enable bit */`
90			`/* bit 14 is reserved */`
91			`#define ATA_DMA_WR (1<<14) /* DMA Write transaction */`
92			`#define ATA_DMA_RD (0<<14) /* DMA Read transaction */`
93			`/* bits 13-10 are reserved */`
94			`#define ATA_BELEC1 (1<< 9) /* Big-Little endian conversion */`
95			`/* enable bit for Device1 */`
96			`#define ATA_BELEC0 (1<< 8) /* Big-Little endian conversion */`
97			`/* enable bit for Device0 */`
98			`#define ATA_IDE_EN (1<< 7) /* IDE core enable bit */`
99			`#define ATA_FTE1 (1<< 6) /* Device1 Fast PIO Timing Enable bit */`
100			`#define ATA_FTE0 (1<< 5) /* Device0 Fast PIO Timing Enable bit */`
101			`#define ATA_PWPP (1<< 4) /* PIO Write Ping-Pong Enable bit */`
102			`#define ATA_IORDY_FTE1 (1<< 3) /* Device1 Fast PIO Timing IORDY */`
103			`/* enable bit */`
104			`#define ATA_IORDY_FTE0 (1<< 2) /* Device0 Fast PIO Timing IORDY */`
105			`/* enable bit */`
106			`#define ATA_IORDY (1<< 1) /* PIO Command Timing IORDY enable bit*/`
107			`#define ATA_RST (1<< 0) /* ATA Reset bit */`
108
109			`/* ----- Core Status register */`
110			`#define ATA_DEVID 0xf0000000 /* bits 31-28 Device-ID */`
111			`#define ATA_REVNO 0x0f000000 /* bits 27-24 Revision number */`
112			`/* bits 23-16 are reserved */`
113			`#define ATA_DMA_TIP (1<<15) /* DMA Transfer in progress */`
114			`/* bits 14-10 are reserved */`
115			`#define ATA_DRBE (1<<10) /* DMA Receive buffer empty */`
116			`#define ATA_DTBF (1<< 9) /* DMA Transmit buffer full */`
117			`#define ATA_DMARQ (1<< 8) /* DMARQ Line status */`
118			`#define ATA_PIO_TIP (1<< 7 /* PIO Transfer in progress */`
119			`#define ATA_PWPPF (1<< 6) /* PIO write ping-pong full */`
120			`/* bits 5-1 are reserved */`
121			`#define ATA_IDEIS (1<< 0) /* IDE Interrupt status */`
122
123
124			`/* ----- Core Timing registers */`
125			`#define ATA_TEOC 24 /* End of cycle time DMA/PIO */`
126			`#define ATA_T4 16 /* DIOW- data hold time PIO */`
127			`#define ATA_T2 8 /* DIOR-/DIOW- pulse width PIO */`
128			`#define ATA_TD 8 /* DIOR-/DIOW- pulse width DMA */`
129			`#define ATA_T1 0 /* Address valid to DIOR-/DIOW- PIO */`
130			`#define ATA_TM 0 /* CS[1:0]valid to DIOR-/DIOW- DMA */`
131
132
133			`/* ----- ATA (Alternate) Status Register */`
134			`#define ATA_SR_BSY 0x80 /* Busy */`
135			`#define ATA_SR_DRDY 0x40 /* Device Ready */`
136			`#define ATA_SR_DF 0x20 /* Device Fault */`
137			`#define ATA_SR_DSC 0x10 /* Device Seek Complete */`
138			`#define ATA_SR_DRQ 0x08 /* Data Request */`
139			`#define ATA_SR_COR 0x04 /* Corrected data (obsolete) */`
140			`#define ATA_SR_IDX 0x02 /* (obsolete) */`
141			`#define ATA_SR_ERR 0x01 /* Error */`
142
143			`/* ----- ATA Device Control Register */`
144			`/* bits 7-3 are reserved */`
145			`#define ATA_DCR_RST 0x04 /* Software reset (RST=1, reset) */`
146			`#define ATA_DCR_IEN 0x02 /* Interrupt Enable (IEN=0, enabled) */`
147			`/* always write a '0' to bit0 */`
148
149			`/* ----- ATA Device Address Register */`
150			`/* All values in this register are one's complement (i.e. inverted) */`
151			`#define ATA_DAR_WTG 0x40 /* Write Gate */`
152			`#define ATA_DAR_H 0x3c /* Head Select */`
153			`#define ATA_DAR_DS1 0x02 /* Drive select 1 */`
154			`#define ATA_DAR_DS0 0x01 /* Drive select 0 */`
155
156			`/* ----- Device/Head Register */`
157			`#define ATA_DHR_LBA 0x40 /* LBA/CHS mode ('1'=LBA mode) */`
158			`#define ATA_DHR_DEV 0x10 /* Device ('0'=dev0, '1'=dev1) */`
159			`#define ATA_DHR_H 0x0f /* Head Select */`
160
161			`/* ----- Error Register */`
162			`#define ATA_ERR_BBK 0x80 /* Bad Block */`
163			`#define ATA_ERR_UNC 0x40 /* Uncorrectable Data Error */`
164			`#define ATA_ERR_IDNF 0x10 /* ID Not Found */`
165			`#define ATA_ERR_ABT 0x04 /* Aborted Command */`
166			`#define ATA_ERR_TON 0x02 /* Track0 Not Found */`
167			`#define ATA_ERR_AMN 0x01 /* Address Mark Not Found */`
168
169
170			`/* ---------------------------- */`
171			`/* ----- ATA commands ----- */`
172			`/* ---------------------------- */`
173			`#define CFA_ERASE_SECTORS 0xC0`
174			`#define CFA_REQUEST_EXTENDED_ERROR_CODE 0x03`
175			`#define CFA_TRANSLATE_SECTOR 0x87`
176			`#define CFA_WRITE_MULTIPLE_WITHOUT_ERASE 0xCD`
177			`#define CFA_WRITE_SECTORS_WITHOUT_ERASE 0x38`
178			`#define CHECK_POWER_MODE 0xE5`
179			`#define DEVICE_RESET 0x08`
180			`#define DOWNLOAD_MICROCODE 0x92`
181			`#define EXECUTE_DEVICE_DIAGNOSTIC 0x90`
182			`#define FLUSH_CACHE 0xE7`
183			`#define GET_MEDIA_STATUS 0xDA`
184			`#define IDENTIFY_DEVICE 0xEC`
185			`#define IDENTIFY_PACKET_DEVICE 0xA1`
186			`#define IDLE 0xE3`
187			`#define IDLE_IMMEDIATE 0xE1`
188			`#define INITIALIZE_DEVICE_PARAMETERS 0x91`
189			`#define MEDIA_EJECT 0xED`
190			`#define MEDIA_LOCK 0xDE`
191			`#define MEDIA_UNLOCK 0xDF`
192			`#define NOP 0x00`
193			`#define PACKET 0xA0`
194			`#define READ_BUFFER 0xE4`
195			`#define READ_DMA 0xC8`
196			`#define READ_DMA_QUEUED 0xC7`
197			`#define READ_MULTIPLE 0xC4`
198			`#define READ_NATIVE_MAX_ADDRESS 0xF8`
199			`#define READ_SECTOR 0x20`
200			`#define READ_SECTORS 0x20`
201			`#define READ_VERIFY_SECTOR 0x40`
202			`#define READ_VERIFY_SECTORS 0x40`
203			`#define SECURITY_DISABLE_PASSWORD 0xF6`
204			`#define SECURITY_ERASE_PREPARE 0xF3`
205			`#define SECURITY_ERASE_UNIT 0xF4`
206			`#define SECURITY_FREEZE_LOCK 0xF5`
207			`#define SECURITY_SET_PASSWORD 0xF1`
208			`#define SECURITY_UNLOCK 0xF2`
209			`#define SEEK 0x70`
210			`#define SERVICE 0xA2`
211			`#define SET_FEATURES 0xEF`
212			`#define SET_MAX 0xF9`
213			`#define SET_MULTIPLE_MODE 0xC6`
214			`#define SLEEP 0xE6`
215			`#define SMART 0xB0`
216			`#define STANDBY 0xE2`
217			`#define STANDBY_IMMEDIATE 0xE0`
218			`#define WRITE_BUFFER 0xE8`
219			`#define WRITE_DMA 0xCA`
220			`#define WRITE_DMA_QUEUED 0xCC`
221			`#define WRITE_MULTIPLE 0xC5`
222			`#define WRITE_SECTOR 0x30`
223			`#define WRITE_SECTORS 0x30`
224
225
226			`/* SET_FEATURES has a number of sub-commands (in Features Register) */`
227			`#define CFA_ENABLE_8BIT_PIO_TRANSFER_MODE 0x01`
228			`#define ENABLE_WRITE_CACHE 0x02`
229			`#define SET_TRANSFER_MODE_SECTOR_COUNT_REG 0x03`
230			`#define ENABLE_ADVANCED_POWER_MANAGEMENT 0x05`
231			`#define ENABLE_POWERUP_IN_STANDBY_FEATURE_SET 0x06`
232			`#define POWERUP_IN_STANDBY_FEATURE_SET_SPINUP 0x07`
233			`#define CFA_ENABLE_POWER_MODE1 0x0A`
234			`#define DISABLE_MEDIA_STATUS_NOTIFICATION 0x31`
235			`#define DISABLE_READ_LOOKAHEAD 0x55`
236			`#define ENABLE_RELEASE_INTERRUPT 0x5D`
237			`#define ENABLE_SERVICE_INTERRUPT 0x5E`
238			`#define DISABLE_REVERTING_TO_POWERON_DEFAULTS 0x66`
239			`#define CFA_DISABLE_8BIT_PIO_TRANSFER_MODE 0x81`
240			`#define DISABLE_WRITE_CACHE 0x82`
241			`#define DISABLE_ADVANCED_POWER_MANAGEMENT 0x85`
242			`#define DISABLE_POWERUP_IN_STANDBY_FEATURE_SET 0x86`
243			`#define CFA_DISABLE_POWER_MODE1 0x8A`
244			`#define ENABLE_MEDIA_STATUS_NOTIFICATION 0x95`
245			`#define ENABLE_READ_LOOKAHEAD_FEATURE 0xAA`
246			`#define ENABLE_REVERTING_TO_POWERON_DEFAULTS 0xCC`
247			`#define DISABLE_RELEASE_INTERRUPT 0xDD`
248			`#define DISABLE_SERVICE_INTERRUPT 0xDE`
249
250			`/* SET_MAX has a number of sub-commands (in Features Register) */`
251			`#define SET_MAX_ADDRESS 0x00`
252			`#define SET_MAX_SET_PASSWORD 0x01`
253			`#define SET_MAX_LOCK 0x02`
254			`#define SET_MAX_UNLOCK 0x03`
255			`#define SET_MAX_FREEZE_LOCK 0x04`
256
257			`/* SET_MAX has a number of sub-commands (in Features Register) */`
258			`#define SMART_READ_DATA 0xD0`
259			`#define SMART_ATTRIBITE_AUTOSAVE 0xD1`
260			`#define SMART_SAVE_ATTRIBUTE_VALUES 0xD3`
261			`#define SMART_EXECUTE_OFFLINE_IMMEDIATE 0xD4`
262			`#define SMART_READ_LOG 0xD5`
263			`#define SMART_WRITE_LOG 0xD6`
264			`#define SMART_ENABLE_OPERATIONS 0xD8`
265			`#define SMART_DISABLE_OPERATIONS 0xD9`
266			`#define SMART_RETURN_STATUS 0xDA`
267
268			`/* ---------------------------- */`
269			`/* ----- Structs ----- */`
270			`/* ---------------------------- */`
271
272			`/* ---------------------------- */`
273			`/* ----- Macros ----- */`
274			`/* ---------------------------- */`
275
276			`#define ata_astatus(base) (REG32(base + ATA_ASR))`
277			`#define ata_status(base) (REG32(base + ATA_SR))`
278			`#define ata_error(base) (REG32(base + ATA_ERR))`
279			`#define ata_cmd(base) (REG32(base + ATA_CR))`
280
281			`#define ata_dev_busy(base) (ata_astatus(base) & ATA_SR_BSY)`
282			`#define ata_dev_cmdrdy(base) (ata_astatus(base) & (~ATA_SR_BSY & ATA_SR_DRDY))`
283			`#define ata_dev_datrdy(base) (ata_astatus(base) & ATA_SR_DRQ)`
284
285
286
287			`/*`
288			`INTERNALS`
289			`*/`
290
291			`/* ------------------- */`
292			`/* ----- defines ----- */`
293			`/* ------------------- */`
294			`#define READ 0`
295			`#define WRITE 1`
296
297			`#define FMODE_READ 0`
298			`#define FMODE_WRITE 1`
299
300			`#define SET (1<<31)`
301			`#define CLR 0`
302
303
304			`#define PIO4 0x02`
305			`#define PIO3 0x01`
306
307			`/define MAJOR, MINOR numbers /`
308			`#define MAJOR(dev) (dev >> 8)`
309			`#define MINOR(dev) (dev & 0xff)`
310
311			`#define MINOR_DEV0 0x00`
312			`#define MINOR_DEV1 0X80`
313
314
315			`#define ATA_IOCTL_EXEC_CMD 0`
316			`#define ATA_IOCTL_READ 1`
317			`#define ATA_IOCTL_ENABLE_HOST 2`
318			`#define ATA_IOCTL_IDENTIFY_DEVICE 3`
319			`#define ATA_IOCTL_IDENTIFY_HOST 4`
320			`#define ATA_IOCTL_SELECT_DEVICE 5`
321			`#define ATA_IOCTL_SET_RST 6`
322			`#define ATA_IOCTL_SET_PIO 7`
323			`#define ATA_IOCTL_SET_FEATURES 8`
324			`#define ATA_IOCTL_SET_FTE 9`
325
326			`#define ARG_HW_RST 0`
327			`#define ARG_SW_RST 1`
328			`#define ARG_DEV_RST 2`
329
330			`/* PIO numbers and PIO timing (in ns) */`
331			`#define ARG_PIO4 4`
332			`#define ARG_PIO3 3`
333			`#define ARG_PIO2 2`
334			`#define ARG_PIO1 1`
335			`#define ARG_PIO0 0`
336
337			`/* register transfer timings */`
338			`#define PIO0_RT0 600`
339			`#define PIO0_RT1 70`
340			`#define PIO0_RT2 290`
341			`#define PIO0_RT2I 0`
342			`#define PIO0_RT4 30`
343			`#define PIO0_RT9 20`
344
345			`#define PIO1_RT0 383`
346			`#define PIO1_RT1 50`
347			`#define PIO1_RT2 290`
348			`#define PIO1_RT2I 0`
349			`#define PIO1_RT4 20`
350			`#define PIO1_RT9 15`
351
352			`#define PIO2_RT0 330`
353			`#define PIO2_RT1 30`
354			`#define PIO2_RT2 290`
355			`#define PIO2_RT2I 0`
356			`#define PIO2_RT4 15`
357			`#define PIO2_RT9 10`
358
359			`#define PIO3_RT0 180`
360			`#define PIO3_RT1 30`
361			`#define PIO3_RT2 80`
362			`#define PIO3_RT2I 70`
363			`#define PIO3_RT4 10`
364			`#define PIO3_RT9 10`
365
366			`#define PIO4_RT0 120`
367			`#define PIO4_RT1 25`
368			`#define PIO4_RT2 70`
369			`#define PIO4_RT2I 25`
370			`#define PIO4_RT4 10`
371			`#define PIO4_RT9 10`
372
373			`/* data transfer timings */`
374			`#define PIO0_DT0 600`
375			`#define PIO0_DT1 70`
376			`#define PIO0_DT2 165`
377			`#define PIO0_DT2I 0`
378			`#define PIO0_DT4 30`
379			`#define PIO0_DT9 20`
380
381			`#define PIO1_DT0 383`
382			`#define PIO1_DT1 50`
383			`#define PIO1_DT2 125`
384			`#define PIO1_DT2I 0`
385			`#define PIO1_DT4 20`
386			`#define PIO1_DT9 15`
387
388			`#define PIO2_DT0 240`
389			`#define PIO2_DT1 30`
390			`#define PIO2_DT2 100`
391			`#define PIO2_DT2I 0`
392			`#define PIO2_DT4 15`
393			`#define PIO2_DT9 10`
394
395			`#define PIO3_DT0 180`
396			`#define PIO3_DT1 30`
397			`#define PIO3_DT2 80`
398			`#define PIO3_DT2I 70`
399			`#define PIO3_DT4 10`
400			`#define PIO3_DT9 10`
401
402			`#define PIO4_DT0 120`
403			`#define PIO4_DT1 25`
404			`#define PIO4_DT2 70`
405			`#define PIO4_DT2I 25`
406			`#define PIO4_DT4 10`
407			`#define PIO4_DT9 10`
408
409
410
411			`/* error numbers */`
412			`#define EINVAL -1`
413			`#define EIOCTLIARG -2`
414
415			`#define EOPENIDEV -3`
416			`#define EOPENIHOST -4`
417			`#define EOPENNODEV -5`
418
419
420
421
422			`/* ------------------------------ */`
423			`/* ----- structs & typedefs ----- */`
424			`/* ------------------------------ */`
425			`struct inode {`
426			`unsigned short i_rdev;`
427			`};`
428
429			`struct file {`
430			`unsigned long f_mode;`
431			`unsigned long f_flags;`
432			`};`
433
434			`typedef unsigned int dev_t;`
435
436			`struct request {`
437			`dev_t rq_dev;`
438			`int cmd;`
439			`unsigned long sector;`
440			`unsigned long nr_sectors;`
441			`unsigned char *buffer;`
442			`};`
443
444
445			`/* ---------------------------- */`
446			`/* ----- Prototypes ----- */`
447			`/* ---------------------------- */`
448			`int ata_open(struct inode inode, struct file filp);`
449			`int ata_open_device_not_found(struct inode *inode);`
450
451			`int ata_release(struct inode inode, struct file filp);`
452
453			`int ata_ioctl(struct inode inode, struct file filp, unsigned command, unsigned long argument);`
454			`unsigned long ata_calc_pio_timing(short t0, short t1, short t2, short t4, short t2i, short t9);`
455
456			`int ata_read_dport(unsigned long base);`
457
458			`int ata_check_media_change(dev_t dev);`
459
460			`int ata_revalidate(dev_t dev);`
461
462			`int ata_request(struct inode inode, struct file filp, struct request *request);`
463
464
465			`#endif`