imm.h
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- /* Driver for the Iomega MatchMaker parallel port SCSI HBA embedded in
- * the Iomega ZIP Plus drive
- *
- * (c) 1998 David Campbell campbell@torque.net
- *
- * Please note that I live in Perth, Western Australia. GMT+0800
- */
- #ifndef _IMM_H
- #define _IMM_H
- #define IMM_VERSION "2.05 (for Linux 2.4.0)"
- /*
- * 10 Apr 1998 (Good Friday) - Received EN144302 by email from Iomega.
- * Scarry thing is the level of support from one of their managers.
- * The onus is now on us (the developers) to shut up and start coding.
- * 11Apr98 [ 0.10 ]
- *
- * --- SNIP ---
- *
- * It manages to find the drive which is a good start. Writing data during
- * data phase is known to be broken (due to requirements of two byte writes).
- * Removing "Phase" debug messages.
- *
- * PS: Took four hours of coding after I bought a drive.
- * ANZAC Day (Aus "War Veterans Holiday") 25Apr98 [ 0.14 ]
- *
- * Ten minutes later after a few fixes.... (LITERALLY!!!)
- * Have mounted disk, copied file, dismounted disk, remount disk, diff file
- * ----- It actually works!!! -----
- * 25Apr98 [ 0.15 ]
- *
- * Twenty minutes of mucking around, rearanged the IEEE negotiate mechanism.
- * Now have byte mode working (only EPP and ECP to go now... :=)
- * 26Apr98 [ 0.16 ]
- *
- * Thirty minutes of further coding results in EPP working on my machine.
- * 27Apr98 [ 0.17 ]
- *
- * Due to work commitments and inability to get a "true" ECP mode functioning
- * I have decided to code the parport support into imm.
- * 09Jun98 [ 0.18 ]
- *
- * Driver is now out of beta testing.
- * Support for parport has been added.
- * Now distributed with the ppa driver.
- * 12Jun98 [ 2.00 ]
- *
- * Err.. It appears that imm-2.00 was broken....
- * 18Jun98 [ 2.01 ]
- *
- * Patch applied to sync this against the Linux 2.1.x kernel code
- * Included qboot_zip.sh
- * 21Jun98 [ 2.02 ]
- *
- * Other clean ups include the follow changes:
- * CONFIG_SCSI_PPA_HAVE_PEDANTIC => CONFIG_SCSI_IZIP_EPP16
- * added CONFIG_SCSI_IZIP_SLOW_CTR option
- * [2.03]
- * Fix kernel panic on scsi timeout. 20Aug00 [2.04]
- *
- * Avoid io_request_lock problems.
- * John Cavan <johncavan@home.com> 16Nov00 [2.05]
- */
- /* ------ END OF USER CONFIGURABLE PARAMETERS ----- */
- #ifdef IMM_CODE
- #include <linux/config.h>
- #include <linux/stddef.h>
- #include <linux/module.h>
- #include <linux/kernel.h>
- #include <linux/tqueue.h>
- #include <linux/ioport.h>
- #include <linux/delay.h>
- #include <linux/proc_fs.h>
- #include <linux/stat.h>
- #include <linux/blk.h>
- #include <linux/sched.h>
- #include <linux/interrupt.h>
- #include <asm/io.h>
- #include "sd.h"
- #include "hosts.h"
- /* batteries not included :-) */
- /*
- * modes in which the driver can operate
- */
- #define IMM_AUTODETECT 0 /* Autodetect mode */
- #define IMM_NIBBLE 1 /* work in standard 4 bit mode */
- #define IMM_PS2 2 /* PS/2 byte mode */
- #define IMM_EPP_8 3 /* EPP mode, 8 bit */
- #define IMM_EPP_16 4 /* EPP mode, 16 bit */
- #define IMM_EPP_32 5 /* EPP mode, 32 bit */
- #define IMM_UNKNOWN 6 /* Just in case... */
- static char *IMM_MODE_STRING[] =
- {
- "Autodetect",
- "SPP",
- "PS/2",
- "EPP 8 bit",
- "EPP 16 bit",
- #ifdef CONFIG_SCSI_IZIP_EPP16
- "EPP 16 bit",
- #else
- "EPP 32 bit",
- #endif
- "Unknown"};
- /* This is a global option */
- int imm_sg = SG_ALL; /* enable/disable scatter-gather. */
- /* other options */
- #define IMM_CAN_QUEUE 1 /* use "queueing" interface */
- #define IMM_BURST_SIZE 512 /* data burst size */
- #define IMM_SELECT_TMO 500 /* 500 how long to wait for target ? */
- #define IMM_SPIN_TMO 5000 /* 50000 imm_wait loop limiter */
- #define IMM_DEBUG 0 /* debugging option */
- #define IN_EPP_MODE(x) (x == IMM_EPP_8 || x == IMM_EPP_16 || x == IMM_EPP_32)
- /* args to imm_connect */
- #define CONNECT_EPP_MAYBE 1
- #define CONNECT_NORMAL 0
- #define r_dtr(x) (unsigned char)inb((x))
- #define r_str(x) (unsigned char)inb((x)+1)
- #define r_ctr(x) (unsigned char)inb((x)+2)
- #define r_epp(x) (unsigned char)inb((x)+4)
- #define r_fifo(x) (unsigned char)inb((x)) /* x must be base_hi */
- /* On PCI is: base+0x400 != base_hi */
- #define r_ecr(x) (unsigned char)inb((x)+2) /* x must be base_hi */
- #define w_dtr(x,y) outb(y, (x))
- #define w_str(x,y) outb(y, (x)+1)
- #define w_epp(x,y) outb(y, (x)+4)
- #define w_fifo(x,y) outb(y, (x)) /* x must be base_hi */
- #define w_ecr(x,y) outb(y, (x)+0x2) /* x must be base_hi */
- #ifdef CONFIG_SCSI_IZIP_SLOW_CTR
- #define w_ctr(x,y) outb_p(y, (x)+2)
- #else
- #define w_ctr(x,y) outb(y, (x)+2)
- #endif
- static int imm_engine(imm_struct *, Scsi_Cmnd *);
- static int imm_in(int, char *, int);
- static int imm_init(int);
- static void imm_interrupt(void *);
- static int imm_out(int, char *, int);
- #else
- #define imm_release 0
- #endif
- int imm_detect(Scsi_Host_Template *);
- const char *imm_info(struct Scsi_Host *);
- int imm_command(Scsi_Cmnd *);
- int imm_queuecommand(Scsi_Cmnd *, void (*done) (Scsi_Cmnd *));
- int imm_abort(Scsi_Cmnd *);
- int imm_reset(Scsi_Cmnd *);
- int imm_proc_info(char *, char **, off_t, int, int, int);
- int imm_biosparam(Disk *, kdev_t, int *);
- #define IMM { proc_name: "imm",
- proc_info: imm_proc_info,
- name: "Iomega VPI2 (imm) interface",
- detect: imm_detect,
- release: imm_release,
- command: imm_command,
- queuecommand: imm_queuecommand,
- eh_abort_handler: imm_abort,
- eh_device_reset_handler: NULL,
- eh_bus_reset_handler: imm_reset,
- eh_host_reset_handler: imm_reset,
- use_new_eh_code: 1,
- bios_param: imm_biosparam,
- this_id: 7,
- sg_tablesize: SG_ALL,
- cmd_per_lun: 1,
- use_clustering: ENABLE_CLUSTERING
- }
- #endif /* _IMM_H */