projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 1da177e4 LT |
2 | |
| 3 | /* Driver for the Iomega MatchMaker parallel port SCSI HBA embedded in | |
| 4 | * the Iomega ZIP Plus drive | |
| 5 | * | |
| bdca3f20 | 6 | * (c) 1998 David Campbell |
| 1da177e4 LT |
7 | * |
| 8 | * Please note that I live in Perth, Western Australia. GMT+0800 | |
| 9 | */ | |
| 10 | ||
| 11 | #ifndef _IMM_H | |
| 12 | #define _IMM_H | |
| 13 | ||
| 14 | #define IMM_VERSION "2.05 (for Linux 2.4.0)" | |
| 15 | ||
| 16 | /* | |
| 17 | * 10 Apr 1998 (Good Friday) - Received EN144302 by email from Iomega. | |
| 18 | * Scarry thing is the level of support from one of their managers. | |
| 19 | * The onus is now on us (the developers) to shut up and start coding. | |
| 20 | * 11Apr98 [ 0.10 ] | |
| 21 | * | |
| 22 | * --- SNIP --- | |
| 23 | * | |
| 24 | * It manages to find the drive which is a good start. Writing data during | |
| 25 | * data phase is known to be broken (due to requirements of two byte writes). | |
| 26 | * Removing "Phase" debug messages. | |
| 27 | * | |
| 28 | * PS: Took four hours of coding after I bought a drive. | |
| 29 | * ANZAC Day (Aus "War Veterans Holiday") 25Apr98 [ 0.14 ] | |
| 30 | * | |
| 31 | * Ten minutes later after a few fixes.... (LITERALLY!!!) | |
| 32 | * Have mounted disk, copied file, dismounted disk, remount disk, diff file | |
| 33 | * ----- It actually works!!! ----- | |
| 34 | * 25Apr98 [ 0.15 ] | |
| 35 | * | |
| 36 | * Twenty minutes of mucking around, rearanged the IEEE negotiate mechanism. | |
| 37 | * Now have byte mode working (only EPP and ECP to go now... :=) | |
| 38 | * 26Apr98 [ 0.16 ] | |
| 39 | * | |
| 40 | * Thirty minutes of further coding results in EPP working on my machine. | |
| 41 | * 27Apr98 [ 0.17 ] | |
| 42 | * | |
| 43 | * Due to work commitments and inability to get a "true" ECP mode functioning | |
| 44 | * I have decided to code the parport support into imm. | |
| 45 | * 09Jun98 [ 0.18 ] | |
| 46 | * | |
| 47 | * Driver is now out of beta testing. | |
| 48 | * Support for parport has been added. | |
| 49 | * Now distributed with the ppa driver. | |
| 50 | * 12Jun98 [ 2.00 ] | |
| 51 | * | |
| 52 | * Err.. It appears that imm-2.00 was broken.... | |
| 53 | * 18Jun98 [ 2.01 ] | |
| 54 | * | |
| 55 | * Patch applied to sync this against the Linux 2.1.x kernel code | |
| 56 | * Included qboot_zip.sh | |
| 57 | * 21Jun98 [ 2.02 ] | |
| 58 | * | |
| 59 | * Other clean ups include the follow changes: | |
| 60 | * CONFIG_SCSI_PPA_HAVE_PEDANTIC => CONFIG_SCSI_IZIP_EPP16 | |
| 61 | * added CONFIG_SCSI_IZIP_SLOW_CTR option | |
| 62 | * [2.03] | |
| 63 | * Fix kernel panic on scsi timeout. 20Aug00 [2.04] | |
| 64 | * | |
| 65 | * Avoid io_request_lock problems. | |
| 66 | * John Cavan <[email protected]> 16Nov00 [2.05] | |
| 67 | */ | |
| 68 | /* ------ END OF USER CONFIGURABLE PARAMETERS ----- */ | |
| 69 | ||
| 1da177e4 LT |
70 | #include <linux/stddef.h> |
| 71 | #include <linux/module.h> | |
| 72 | #include <linux/kernel.h> | |
| 73 | #include <linux/ioport.h> | |
| 74 | #include <linux/delay.h> | |
| 75 | #include <linux/proc_fs.h> | |
| 76 | #include <linux/stat.h> | |
| 77 | #include <linux/blkdev.h> | |
| 78 | #include <linux/sched.h> | |
| 79 | #include <linux/interrupt.h> | |
| 80 | ||
| 81 | #include <asm/io.h> | |
| 82 | #include <scsi/scsi_host.h> | |
| 83 | /* batteries not included :-) */ | |
| 84 | ||
| 85 | /* | |
| 86 | * modes in which the driver can operate | |
| 87 | */ | |
| 88 | #define IMM_AUTODETECT 0 /* Autodetect mode */ | |
| 89 | #define IMM_NIBBLE 1 /* work in standard 4 bit mode */ | |
| 90 | #define IMM_PS2 2 /* PS/2 byte mode */ | |
| 91 | #define IMM_EPP_8 3 /* EPP mode, 8 bit */ | |
| 92 | #define IMM_EPP_16 4 /* EPP mode, 16 bit */ | |
| 93 | #define IMM_EPP_32 5 /* EPP mode, 32 bit */ | |
| 94 | #define IMM_UNKNOWN 6 /* Just in case... */ | |
| 95 | ||
| 96 | static char *IMM_MODE_STRING[] = | |
| 97 | { | |
| 98 | [IMM_AUTODETECT] = "Autodetect", | |
| 99 | [IMM_NIBBLE] = "SPP", | |
| 100 | [IMM_PS2] = "PS/2", | |
| 101 | [IMM_EPP_8] = "EPP 8 bit", | |
| 102 | [IMM_EPP_16] = "EPP 16 bit", | |
| 103 | #ifdef CONFIG_SCSI_IZIP_EPP16 | |
| 104 | [IMM_EPP_32] = "EPP 16 bit", | |
| 105 | #else | |
| 106 | [IMM_EPP_32] = "EPP 32 bit", | |
| 107 | #endif | |
| 108 | [IMM_UNKNOWN] = "Unknown", | |
| 109 | }; | |
| 110 | ||
| 111 | /* other options */ | |
| 112 | #define IMM_BURST_SIZE 512 /* data burst size */ | |
| 113 | #define IMM_SELECT_TMO 500 /* 500 how long to wait for target ? */ | |
| 114 | #define IMM_SPIN_TMO 5000 /* 50000 imm_wait loop limiter */ | |
| 115 | #define IMM_DEBUG 0 /* debugging option */ | |
| 116 | #define IN_EPP_MODE(x) (x == IMM_EPP_8 || x == IMM_EPP_16 || x == IMM_EPP_32) | |
| 117 | ||
| 118 | /* args to imm_connect */ | |
| 119 | #define CONNECT_EPP_MAYBE 1 | |
| 120 | #define CONNECT_NORMAL 0 | |
| 121 | ||
| 122 | #define r_dtr(x) (unsigned char)inb((x)) | |
| 123 | #define r_str(x) (unsigned char)inb((x)+1) | |
| 124 | #define r_ctr(x) (unsigned char)inb((x)+2) | |
| 125 | #define r_epp(x) (unsigned char)inb((x)+4) | |
| 126 | #define r_fifo(x) (unsigned char)inb((x)) /* x must be base_hi */ | |
| 127 | /* On PCI is: base+0x400 != base_hi */ | |
| 128 | #define r_ecr(x) (unsigned char)inb((x)+2) /* x must be base_hi */ | |
| 129 | ||
| 130 | #define w_dtr(x,y) outb(y, (x)) | |
| 131 | #define w_str(x,y) outb(y, (x)+1) | |
| 132 | #define w_epp(x,y) outb(y, (x)+4) | |
| 133 | #define w_fifo(x,y) outb(y, (x)) /* x must be base_hi */ | |
| 134 | #define w_ecr(x,y) outb(y, (x)+0x2) /* x must be base_hi */ | |
| 135 | ||
| 136 | #ifdef CONFIG_SCSI_IZIP_SLOW_CTR | |
| 137 | #define w_ctr(x,y) outb_p(y, (x)+2) | |
| 138 | #else | |
| 139 | #define w_ctr(x,y) outb(y, (x)+2) | |
| 140 | #endif | |
| 141 | ||
| 142 | static int imm_engine(imm_struct *, struct scsi_cmnd *); | |
| 143 | ||
| 144 | #endif /* _IMM_H */ |