Ondrej Zary | 1d084d2 | 2015-02-06 23:11:47 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Driver for Adaptec AHA-1542 SCSI host adapters |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
| 4 | * Copyright (C) 1992 Tommy Thorn |
| 5 | * Copyright (C) 1993, 1994, 1995 Eric Youngdale |
Ondrej Zary | 1d084d2 | 2015-02-06 23:11:47 +0100 | [diff] [blame] | 6 | * Copyright (C) 2015 Ondrej Zary |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | */ |
| 8 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | #include <linux/module.h> |
| 10 | #include <linux/interrupt.h> |
| 11 | #include <linux/kernel.h> |
| 12 | #include <linux/types.h> |
| 13 | #include <linux/string.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #include <linux/delay.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | #include <linux/init.h> |
| 16 | #include <linux/spinlock.h> |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 17 | #include <linux/isa.h> |
| 18 | #include <linux/pnp.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 19 | #include <linux/slab.h> |
Ondrej Zary | 954a9fd | 2015-02-06 23:11:48 +0100 | [diff] [blame] | 20 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | #include <asm/dma.h> |
Ondrej Zary | 954a9fd | 2015-02-06 23:11:48 +0100 | [diff] [blame] | 22 | #include <scsi/scsi_cmnd.h> |
| 23 | #include <scsi/scsi_device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | #include <scsi/scsi_host.h> |
| 25 | #include "aha1542.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | |
| 27 | #ifdef DEBUG |
| 28 | #define DEB(x) x |
| 29 | #else |
| 30 | #define DEB(x) |
| 31 | #endif |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 32 | #define MAXBOARDS 4 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 34 | static bool isapnp = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | module_param(isapnp, bool, 0); |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 36 | MODULE_PARM_DESC(isapnp, "enable PnP support (default=1)"); |
| 37 | |
| 38 | static int io[MAXBOARDS] = { 0x330, 0x334, 0, 0 }; |
| 39 | module_param_array(io, int, NULL, 0); |
| 40 | MODULE_PARM_DESC(io, "base IO address of controller (0x130,0x134,0x230,0x234,0x330,0x334, default=0x330,0x334)"); |
| 41 | |
| 42 | /* time AHA spends on the AT-bus during data transfer */ |
| 43 | static int bus_on[MAXBOARDS] = { -1, -1, -1, -1 }; /* power-on default: 11us */ |
| 44 | module_param_array(bus_on, int, NULL, 0); |
| 45 | MODULE_PARM_DESC(bus_on, "bus on time [us] (2-15, default=-1 [HW default: 11])"); |
| 46 | |
| 47 | /* time AHA spends off the bus (not to monopolize it) during data transfer */ |
| 48 | static int bus_off[MAXBOARDS] = { -1, -1, -1, -1 }; /* power-on default: 4us */ |
| 49 | module_param_array(bus_off, int, NULL, 0); |
| 50 | MODULE_PARM_DESC(bus_off, "bus off time [us] (1-64, default=-1 [HW default: 4])"); |
| 51 | |
| 52 | /* default is jumper selected (J1 on 1542A), factory default = 5 MB/s */ |
| 53 | static int dma_speed[MAXBOARDS] = { -1, -1, -1, -1 }; |
| 54 | module_param_array(dma_speed, int, NULL, 0); |
| 55 | MODULE_PARM_DESC(dma_speed, "DMA speed [MB/s] (5,6,7,8,10, default=-1 [by jumper])"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | #define BIOS_TRANSLATION_6432 1 /* Default case these days */ |
| 58 | #define BIOS_TRANSLATION_25563 2 /* Big disk case */ |
| 59 | |
| 60 | struct aha1542_hostdata { |
| 61 | /* This will effectively start both of them at the first mailbox */ |
| 62 | int bios_translation; /* Mapping bios uses - for compatibility */ |
| 63 | int aha1542_last_mbi_used; |
| 64 | int aha1542_last_mbo_used; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 65 | struct scsi_cmnd *int_cmds[AHA1542_MAILBOXES]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | struct mailbox mb[2 * AHA1542_MAILBOXES]; |
| 67 | struct ccb ccb[AHA1542_MAILBOXES]; |
| 68 | }; |
| 69 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | static DEFINE_SPINLOCK(aha1542_lock); |
| 71 | |
Ondrej Zary | f1bbef6 | 2015-02-06 23:11:26 +0100 | [diff] [blame] | 72 | static inline void aha1542_intr_reset(u16 base) |
| 73 | { |
| 74 | outb(IRST, CONTROL(base)); |
| 75 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | |
Ondrej Zary | 2093bfa | 2015-02-06 23:11:31 +0100 | [diff] [blame] | 77 | static inline bool wait_mask(u16 port, u8 mask, u8 allof, u8 noneof, int timeout) |
| 78 | { |
| 79 | bool delayed = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | |
Ondrej Zary | 2093bfa | 2015-02-06 23:11:31 +0100 | [diff] [blame] | 81 | if (timeout == 0) { |
| 82 | timeout = 3000000; |
| 83 | delayed = false; |
| 84 | } |
| 85 | |
| 86 | while (1) { |
| 87 | u8 bits = inb(port) & mask; |
| 88 | if ((bits & allof) == allof && ((bits & noneof) == 0)) |
| 89 | break; |
| 90 | if (delayed) |
| 91 | mdelay(1); |
| 92 | if (--timeout == 0) |
| 93 | return false; |
| 94 | } |
| 95 | |
| 96 | return true; |
| 97 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | /* This is a bit complicated, but we need to make sure that an interrupt |
| 100 | routine does not send something out while we are in the middle of this. |
| 101 | Fortunately, it is only at boot time that multi-byte messages |
| 102 | are ever sent. */ |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 103 | static int aha1542_outb(unsigned int base, u8 val) |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 104 | { |
| 105 | unsigned long flags; |
| 106 | |
| 107 | while (1) { |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 108 | if (!wait_mask(STATUS(base), CDF, 0, CDF, 0)) |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 109 | return 1; |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 110 | spin_lock_irqsave(&aha1542_lock, flags); |
| 111 | if (inb(STATUS(base)) & CDF) { |
| 112 | spin_unlock_irqrestore(&aha1542_lock, flags); |
| 113 | continue; |
| 114 | } |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 115 | outb(val, DATA(base)); |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 116 | spin_unlock_irqrestore(&aha1542_lock, flags); |
| 117 | return 0; |
| 118 | } |
| 119 | } |
| 120 | |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 121 | static int aha1542_out(unsigned int base, u8 *buf, int len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | { |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 123 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 125 | spin_lock_irqsave(&aha1542_lock, flags); |
| 126 | while (len--) { |
| 127 | if (!wait_mask(STATUS(base), CDF, 0, CDF, 0)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | spin_unlock_irqrestore(&aha1542_lock, flags); |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 129 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | } |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 131 | outb(*buf++, DATA(base)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | } |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 133 | spin_unlock_irqrestore(&aha1542_lock, flags); |
Ondrej Zary | 23e6940 | 2015-02-06 23:11:39 +0100 | [diff] [blame] | 134 | if (!wait_mask(INTRFLAGS(base), INTRMASK, HACC, 0, 0)) |
| 135 | return 1; |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 136 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | } |
| 139 | |
| 140 | /* Only used at boot time, so we do not need to worry about latency as much |
| 141 | here */ |
| 142 | |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 143 | static int aha1542_in(unsigned int base, u8 *buf, int len, int timeout) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | { |
| 145 | unsigned long flags; |
| 146 | |
| 147 | spin_lock_irqsave(&aha1542_lock, flags); |
| 148 | while (len--) { |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 149 | if (!wait_mask(STATUS(base), DF, DF, 0, timeout)) { |
| 150 | spin_unlock_irqrestore(&aha1542_lock, flags); |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 151 | return 1; |
| 152 | } |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 153 | *buf++ = inb(DATA(base)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | } |
| 155 | spin_unlock_irqrestore(&aha1542_lock, flags); |
| 156 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | } |
| 158 | |
| 159 | static int makecode(unsigned hosterr, unsigned scsierr) |
| 160 | { |
| 161 | switch (hosterr) { |
| 162 | case 0x0: |
| 163 | case 0xa: /* Linked command complete without error and linked normally */ |
| 164 | case 0xb: /* Linked command complete without error, interrupt generated */ |
| 165 | hosterr = 0; |
| 166 | break; |
| 167 | |
| 168 | case 0x11: /* Selection time out-The initiator selection or target |
| 169 | reselection was not complete within the SCSI Time out period */ |
| 170 | hosterr = DID_TIME_OUT; |
| 171 | break; |
| 172 | |
| 173 | case 0x12: /* Data overrun/underrun-The target attempted to transfer more data |
| 174 | than was allocated by the Data Length field or the sum of the |
| 175 | Scatter / Gather Data Length fields. */ |
| 176 | |
| 177 | case 0x13: /* Unexpected bus free-The target dropped the SCSI BSY at an unexpected time. */ |
| 178 | |
| 179 | case 0x15: /* MBO command was not 00, 01 or 02-The first byte of the CB was |
| 180 | invalid. This usually indicates a software failure. */ |
| 181 | |
| 182 | case 0x16: /* Invalid CCB Operation Code-The first byte of the CCB was invalid. |
| 183 | This usually indicates a software failure. */ |
| 184 | |
| 185 | case 0x17: /* Linked CCB does not have the same LUN-A subsequent CCB of a set |
| 186 | of linked CCB's does not specify the same logical unit number as |
| 187 | the first. */ |
| 188 | case 0x18: /* Invalid Target Direction received from Host-The direction of a |
| 189 | Target Mode CCB was invalid. */ |
| 190 | |
| 191 | case 0x19: /* Duplicate CCB Received in Target Mode-More than once CCB was |
| 192 | received to service data transfer between the same target LUN |
| 193 | and initiator SCSI ID in the same direction. */ |
| 194 | |
| 195 | case 0x1a: /* Invalid CCB or Segment List Parameter-A segment list with a zero |
| 196 | length segment or invalid segment list boundaries was received. |
| 197 | A CCB parameter was invalid. */ |
| 198 | DEB(printk("Aha1542: %x %x\n", hosterr, scsierr)); |
| 199 | hosterr = DID_ERROR; /* Couldn't find any better */ |
| 200 | break; |
| 201 | |
| 202 | case 0x14: /* Target bus phase sequence failure-An invalid bus phase or bus |
| 203 | phase sequence was requested by the target. The host adapter |
| 204 | will generate a SCSI Reset Condition, notifying the host with |
| 205 | a SCRD interrupt */ |
| 206 | hosterr = DID_RESET; |
| 207 | break; |
| 208 | default: |
| 209 | printk(KERN_ERR "aha1542: makecode: unknown hoststatus %x\n", hosterr); |
| 210 | break; |
| 211 | } |
| 212 | return scsierr | (hosterr << 16); |
| 213 | } |
| 214 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 215 | static int aha1542_test_port(struct Scsi_Host *sh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | { |
Ondrej Zary | cb5b570 | 2015-02-06 23:11:27 +0100 | [diff] [blame] | 217 | u8 inquiry_result[4]; |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 218 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | |
| 220 | /* Quick and dirty test for presence of the card. */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 221 | if (inb(STATUS(sh->io_port)) == 0xff) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | return 0; |
| 223 | |
| 224 | /* Reset the adapter. I ought to make a hard reset, but it's not really necessary */ |
| 225 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | /* In case some other card was probing here, reset interrupts */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 227 | aha1542_intr_reset(sh->io_port); /* reset interrupts, so they don't block */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 229 | outb(SRST | IRST /*|SCRST */ , CONTROL(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | |
| 231 | mdelay(20); /* Wait a little bit for things to settle down. */ |
| 232 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | /* Expect INIT and IDLE, any of the others are bad */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 234 | if (!wait_mask(STATUS(sh->io_port), STATMASK, INIT | IDLE, STST | DIAGF | INVDCMD | DF | CDF, 0)) |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 235 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | /* Shouldn't have generated any interrupts during reset */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 238 | if (inb(INTRFLAGS(sh->io_port)) & INTRMASK) |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 239 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | /* Perform a host adapter inquiry instead so we do not need to set |
| 242 | up the mailboxes ahead of time */ |
| 243 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 244 | aha1542_outb(sh->io_port, CMD_INQUIRY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 246 | for (i = 0; i < 4; i++) { |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 247 | if (!wait_mask(STATUS(sh->io_port), DF, DF, 0, 0)) |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 248 | return 0; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 249 | inquiry_result[i] = inb(DATA(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | } |
| 251 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | /* Reading port should reset DF */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 253 | if (inb(STATUS(sh->io_port)) & DF) |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 254 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | /* When HACC, command is completed, and we're though testing */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 257 | if (!wait_mask(INTRFLAGS(sh->io_port), HACC, HACC, 0, 0)) |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 258 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | /* Clear interrupts */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 261 | outb(IRST, CONTROL(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | |
Ondrej Zary | bdebe22 | 2015-02-06 23:11:35 +0100 | [diff] [blame] | 263 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | } |
| 265 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | /* A "high" level interrupt handler */ |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 267 | static void aha1542_intr_handle(struct Scsi_Host *sh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | { |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 269 | struct aha1542_hostdata *aha1542 = shost_priv(sh); |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 270 | void (*my_done)(struct scsi_cmnd *) = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | int errstatus, mbi, mbo, mbistatus; |
| 272 | int number_serviced; |
| 273 | unsigned long flags; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 274 | struct scsi_cmnd *tmp_cmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | int flag; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 276 | struct mailbox *mb = aha1542->mb; |
| 277 | struct ccb *ccb = aha1542->ccb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | |
| 279 | #ifdef DEBUG |
| 280 | { |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 281 | flag = inb(INTRFLAGS(sh->io_port)); |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 282 | shost_printk(KERN_DEBUG, sh, "aha1542_intr_handle: "); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | if (!(flag & ANYINTR)) |
| 284 | printk("no interrupt?"); |
| 285 | if (flag & MBIF) |
| 286 | printk("MBIF "); |
| 287 | if (flag & MBOA) |
| 288 | printk("MBOF "); |
| 289 | if (flag & HACC) |
| 290 | printk("HACC "); |
| 291 | if (flag & SCRD) |
| 292 | printk("SCRD "); |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 293 | printk("status %02x\n", inb(STATUS(sh->io_port))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | }; |
| 295 | #endif |
| 296 | number_serviced = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | |
| 298 | while (1 == 1) { |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 299 | flag = inb(INTRFLAGS(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | |
| 301 | /* Check for unusual interrupts. If any of these happen, we should |
| 302 | probably do something special, but for now just printing a message |
| 303 | is sufficient. A SCSI reset detected is something that we really |
| 304 | need to deal with in some way. */ |
| 305 | if (flag & ~MBIF) { |
| 306 | if (flag & MBOA) |
| 307 | printk("MBOF "); |
| 308 | if (flag & HACC) |
| 309 | printk("HACC "); |
Ondrej Zary | dfd7c99 | 2015-02-06 23:11:36 +0100 | [diff] [blame] | 310 | if (flag & SCRD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | printk("SCRD "); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | } |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 313 | aha1542_intr_reset(sh->io_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | |
| 315 | spin_lock_irqsave(&aha1542_lock, flags); |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 316 | mbi = aha1542->aha1542_last_mbi_used + 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | if (mbi >= 2 * AHA1542_MAILBOXES) |
| 318 | mbi = AHA1542_MAILBOXES; |
| 319 | |
| 320 | do { |
| 321 | if (mb[mbi].status != 0) |
| 322 | break; |
| 323 | mbi++; |
| 324 | if (mbi >= 2 * AHA1542_MAILBOXES) |
| 325 | mbi = AHA1542_MAILBOXES; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 326 | } while (mbi != aha1542->aha1542_last_mbi_used); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | |
| 328 | if (mb[mbi].status == 0) { |
| 329 | spin_unlock_irqrestore(&aha1542_lock, flags); |
| 330 | /* Hmm, no mail. Must have read it the last time around */ |
Ondrej Zary | dfd7c99 | 2015-02-06 23:11:36 +0100 | [diff] [blame] | 331 | if (!number_serviced) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 332 | shost_printk(KERN_WARNING, sh, "interrupt received, but no mail.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | return; |
| 334 | }; |
| 335 | |
Ondrej Zary | 10be625 | 2015-02-06 23:11:24 +0100 | [diff] [blame] | 336 | mbo = (scsi2int(mb[mbi].ccbptr) - (isa_virt_to_bus(&ccb[0]))) / sizeof(struct ccb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | mbistatus = mb[mbi].status; |
| 338 | mb[mbi].status = 0; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 339 | aha1542->aha1542_last_mbi_used = mbi; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | spin_unlock_irqrestore(&aha1542_lock, flags); |
| 341 | |
| 342 | #ifdef DEBUG |
| 343 | { |
| 344 | if (ccb[mbo].tarstat | ccb[mbo].hastat) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 345 | shost_printk(KERN_DEBUG, sh, "aha1542_command: returning %x (status %d)\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | ccb[mbo].tarstat + ((int) ccb[mbo].hastat << 16), mb[mbi].status); |
| 347 | }; |
| 348 | #endif |
| 349 | |
| 350 | if (mbistatus == 3) |
| 351 | continue; /* Aborted command not found */ |
| 352 | |
| 353 | #ifdef DEBUG |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 354 | shost_printk(KERN_DEBUG, sh, "...done %d %d\n", mbo, mbi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | #endif |
| 356 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 357 | tmp_cmd = aha1542->int_cmds[mbo]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 359 | if (!tmp_cmd || !tmp_cmd->scsi_done) { |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 360 | shost_printk(KERN_WARNING, sh, "Unexpected interrupt\n"); |
| 361 | shost_printk(KERN_WARNING, sh, "tarstat=%x, hastat=%x idlun=%x ccb#=%d\n", ccb[mbo].tarstat, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | ccb[mbo].hastat, ccb[mbo].idlun, mbo); |
| 363 | return; |
| 364 | } |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 365 | my_done = tmp_cmd->scsi_done; |
| 366 | kfree(tmp_cmd->host_scribble); |
| 367 | tmp_cmd->host_scribble = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | /* Fetch the sense data, and tuck it away, in the required slot. The |
| 369 | Adaptec automatically fetches it, and there is no guarantee that |
| 370 | we will still have it in the cdb when we come back */ |
| 371 | if (ccb[mbo].tarstat == 2) |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 372 | memcpy(tmp_cmd->sense_buffer, &ccb[mbo].cdb[ccb[mbo].cdblen], |
FUJITA Tomonori | b80ca4f | 2008-01-13 15:46:13 +0900 | [diff] [blame] | 373 | SCSI_SENSE_BUFFERSIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | |
| 375 | |
| 376 | /* is there mail :-) */ |
| 377 | |
| 378 | /* more error checking left out here */ |
| 379 | if (mbistatus != 1) |
| 380 | /* This is surely wrong, but I don't know what's right */ |
| 381 | errstatus = makecode(ccb[mbo].hastat, ccb[mbo].tarstat); |
| 382 | else |
| 383 | errstatus = 0; |
| 384 | |
| 385 | #ifdef DEBUG |
| 386 | if (errstatus) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 387 | shost_printk(KERN_DEBUG, sh, "(aha1542 error:%x %x %x) ", errstatus, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | ccb[mbo].hastat, ccb[mbo].tarstat); |
| 389 | #endif |
| 390 | |
| 391 | if (ccb[mbo].tarstat == 2) { |
| 392 | #ifdef DEBUG |
| 393 | int i; |
| 394 | #endif |
| 395 | DEB(printk("aha1542_intr_handle: sense:")); |
| 396 | #ifdef DEBUG |
| 397 | for (i = 0; i < 12; i++) |
| 398 | printk("%02x ", ccb[mbo].cdb[ccb[mbo].cdblen + i]); |
| 399 | printk("\n"); |
| 400 | #endif |
| 401 | /* |
| 402 | DEB(printk("aha1542_intr_handle: buf:")); |
| 403 | for (i = 0; i < bufflen; i++) |
| 404 | printk("%02x ", ((unchar *)buff)[i]); |
| 405 | printk("\n"); |
| 406 | */ |
| 407 | } |
| 408 | DEB(if (errstatus) printk("aha1542_intr_handle: returning %6x\n", errstatus)); |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 409 | tmp_cmd->result = errstatus; |
| 410 | aha1542->int_cmds[mbo] = NULL; /* This effectively frees up the mailbox slot, as |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 411 | far as queuecommand is concerned */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 412 | my_done(tmp_cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | number_serviced++; |
| 414 | }; |
| 415 | } |
| 416 | |
Ondrej Zary | 09a4483 | 2015-02-06 23:11:28 +0100 | [diff] [blame] | 417 | /* A quick wrapper for do_aha1542_intr_handle to grab the spin lock */ |
| 418 | static irqreturn_t do_aha1542_intr_handle(int dummy, void *dev_id) |
| 419 | { |
| 420 | unsigned long flags; |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 421 | struct Scsi_Host *sh = dev_id; |
Ondrej Zary | 09a4483 | 2015-02-06 23:11:28 +0100 | [diff] [blame] | 422 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 423 | spin_lock_irqsave(sh->host_lock, flags); |
| 424 | aha1542_intr_handle(sh); |
| 425 | spin_unlock_irqrestore(sh->host_lock, flags); |
Ondrej Zary | 09a4483 | 2015-02-06 23:11:28 +0100 | [diff] [blame] | 426 | return IRQ_HANDLED; |
| 427 | } |
| 428 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 429 | static int aha1542_queuecommand_lck(struct scsi_cmnd *cmd, void (*done) (struct scsi_cmnd *)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | { |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 431 | struct Scsi_Host *sh = cmd->device->host; |
| 432 | struct aha1542_hostdata *aha1542 = shost_priv(sh); |
Ondrej Zary | cb5b570 | 2015-02-06 23:11:27 +0100 | [diff] [blame] | 433 | u8 direction; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 434 | u8 target = cmd->device->id; |
| 435 | u8 lun = cmd->device->lun; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | unsigned long flags; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 437 | int bufflen = scsi_bufflen(cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | int mbo; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 439 | struct mailbox *mb = aha1542->mb; |
| 440 | struct ccb *ccb = aha1542->ccb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | |
| 442 | DEB(int i); |
| 443 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | DEB(if (target > 1) { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 445 | cmd->result = DID_TIME_OUT << 16; |
| 446 | done(cmd); return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | } |
| 448 | ); |
| 449 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 450 | if (*cmd->cmnd == REQUEST_SENSE) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | /* Don't do the command - we have the sense data already */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 452 | cmd->result = 0; |
| 453 | done(cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | return 0; |
| 455 | } |
| 456 | #ifdef DEBUG |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 457 | if (*cmd->cmnd == READ_10 || *cmd->cmnd == WRITE_10) |
| 458 | i = xscsi2int(cmd->cmnd + 2); |
| 459 | else if (*cmd->cmnd == READ_6 || *cmd->cmnd == WRITE_6) |
| 460 | i = scsi2int(cmd->cmnd + 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | else |
| 462 | i = -1; |
| 463 | if (done) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 464 | shost_printk(KERN_DEBUG, sh, "aha1542_queuecommand: dev %d cmd %02x pos %d len %d ", target, *cmd->cmnd, i, bufflen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | else |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 466 | shost_printk(KERN_DEBUG, sh, "aha1542_command: dev %d cmd %02x pos %d len %d ", target, *cmd->cmnd, i, bufflen); |
| 467 | shost_printk(KERN_DEBUG, sh, "aha1542_queuecommand: dumping scsi cmd:"); |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 468 | for (i = 0; i < cmd->cmd_len; i++) |
| 469 | printk("%02x ", cmd->cmnd[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | printk("\n"); |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 471 | if (*cmd->cmnd == WRITE_10 || *cmd->cmnd == WRITE_6) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 472 | return 0; /* we are still testing, so *don't* write */ |
| 473 | #endif |
| 474 | /* Use the outgoing mailboxes in a round-robin fashion, because this |
| 475 | is how the host adapter will scan for them */ |
| 476 | |
| 477 | spin_lock_irqsave(&aha1542_lock, flags); |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 478 | mbo = aha1542->aha1542_last_mbo_used + 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | if (mbo >= AHA1542_MAILBOXES) |
| 480 | mbo = 0; |
| 481 | |
| 482 | do { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 483 | if (mb[mbo].status == 0 && aha1542->int_cmds[mbo] == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | break; |
| 485 | mbo++; |
| 486 | if (mbo >= AHA1542_MAILBOXES) |
| 487 | mbo = 0; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 488 | } while (mbo != aha1542->aha1542_last_mbo_used); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 490 | if (mb[mbo].status || aha1542->int_cmds[mbo]) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | panic("Unable to find empty mailbox for aha1542.\n"); |
| 492 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 493 | aha1542->int_cmds[mbo] = cmd; /* This will effectively prevent someone else from |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 494 | screwing with this cdb. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 496 | aha1542->aha1542_last_mbo_used = mbo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | spin_unlock_irqrestore(&aha1542_lock, flags); |
| 498 | |
| 499 | #ifdef DEBUG |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 500 | shost_printk(KERN_DEBUG, sh, "Sending command (%d %x)...", mbo, done); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 501 | #endif |
| 502 | |
Ondrej Zary | 10be625 | 2015-02-06 23:11:24 +0100 | [diff] [blame] | 503 | any2scsi(mb[mbo].ccbptr, isa_virt_to_bus(&ccb[mbo])); /* This gets trashed for some reason */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | |
| 505 | memset(&ccb[mbo], 0, sizeof(struct ccb)); |
| 506 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 507 | ccb[mbo].cdblen = cmd->cmd_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | |
| 509 | direction = 0; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 510 | if (*cmd->cmnd == READ_10 || *cmd->cmnd == READ_6) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | direction = 8; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 512 | else if (*cmd->cmnd == WRITE_10 || *cmd->cmnd == WRITE_6) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | direction = 16; |
| 514 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 515 | memcpy(ccb[mbo].cdb, cmd->cmnd, ccb[mbo].cdblen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | |
Boaz Harrosh | fc3fdfc | 2007-09-09 21:02:45 +0300 | [diff] [blame] | 517 | if (bufflen) { |
Jens Axboe | 51cf224 | 2007-07-16 10:00:31 +0200 | [diff] [blame] | 518 | struct scatterlist *sg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | struct chain *cptr; |
| 520 | #ifdef DEBUG |
| 521 | unsigned char *ptr; |
| 522 | #endif |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 523 | int i, sg_count = scsi_sg_count(cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | ccb[mbo].op = 2; /* SCSI Initiator Command w/scatter-gather */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 525 | cmd->host_scribble = kmalloc(sizeof(*cptr)*sg_count, |
Boaz Harrosh | fc3fdfc | 2007-09-09 21:02:45 +0300 | [diff] [blame] | 526 | GFP_KERNEL | GFP_DMA); |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 527 | cptr = (struct chain *) cmd->host_scribble; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | if (cptr == NULL) { |
| 529 | /* free the claimed mailbox slot */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 530 | aha1542->int_cmds[mbo] = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | return SCSI_MLQUEUE_HOST_BUSY; |
| 532 | } |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 533 | scsi_for_each_sg(cmd, sg, sg_count, i) { |
Ondrej Zary | 10be625 | 2015-02-06 23:11:24 +0100 | [diff] [blame] | 534 | any2scsi(cptr[i].dataptr, isa_page_to_bus(sg_page(sg)) |
| 535 | + sg->offset); |
Jens Axboe | 51cf224 | 2007-07-16 10:00:31 +0200 | [diff] [blame] | 536 | any2scsi(cptr[i].datalen, sg->length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | }; |
Boaz Harrosh | fc3fdfc | 2007-09-09 21:02:45 +0300 | [diff] [blame] | 538 | any2scsi(ccb[mbo].datalen, sg_count * sizeof(struct chain)); |
Ondrej Zary | 10be625 | 2015-02-06 23:11:24 +0100 | [diff] [blame] | 539 | any2scsi(ccb[mbo].dataptr, isa_virt_to_bus(cptr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | #ifdef DEBUG |
| 541 | printk("cptr %x: ", cptr); |
| 542 | ptr = (unsigned char *) cptr; |
| 543 | for (i = 0; i < 18; i++) |
| 544 | printk("%02x ", ptr[i]); |
| 545 | #endif |
| 546 | } else { |
| 547 | ccb[mbo].op = 0; /* SCSI Initiator Command */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 548 | cmd->host_scribble = NULL; |
Boaz Harrosh | fc3fdfc | 2007-09-09 21:02:45 +0300 | [diff] [blame] | 549 | any2scsi(ccb[mbo].datalen, 0); |
| 550 | any2scsi(ccb[mbo].dataptr, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | }; |
| 552 | ccb[mbo].idlun = (target & 7) << 5 | direction | (lun & 7); /*SCSI Target Id */ |
| 553 | ccb[mbo].rsalen = 16; |
| 554 | ccb[mbo].linkptr[0] = ccb[mbo].linkptr[1] = ccb[mbo].linkptr[2] = 0; |
| 555 | ccb[mbo].commlinkid = 0; |
| 556 | |
| 557 | #ifdef DEBUG |
| 558 | { |
| 559 | int i; |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 560 | shost_printk(KERN_DEBUG, sh, "aha1542_command: sending.. "); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | for (i = 0; i < sizeof(ccb[mbo]) - 10; i++) |
Ondrej Zary | cb5b570 | 2015-02-06 23:11:27 +0100 | [diff] [blame] | 562 | printk("%02x ", ((u8 *) &ccb[mbo])[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | }; |
| 564 | #endif |
| 565 | |
| 566 | if (done) { |
Ondrej Zary | f232d53 | 2015-02-06 23:11:29 +0100 | [diff] [blame] | 567 | DEB(printk("aha1542_queuecommand: now waiting for interrupt ")); |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 568 | cmd->scsi_done = done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | mb[mbo].status = 1; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 570 | aha1542_outb(cmd->device->host->io_port, CMD_START_SCSI); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | } else |
| 572 | printk("aha1542_queuecommand: done can't be NULL\n"); |
| 573 | |
| 574 | return 0; |
| 575 | } |
| 576 | |
Jeff Garzik | f281233 | 2010-11-16 02:10:29 -0500 | [diff] [blame] | 577 | static DEF_SCSI_QCMD(aha1542_queuecommand) |
| 578 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | /* Initialize mailboxes */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 580 | static void setup_mailboxes(struct Scsi_Host *sh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | { |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 582 | struct aha1542_hostdata *aha1542 = shost_priv(sh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | int i; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 584 | struct mailbox *mb = aha1542->mb; |
| 585 | struct ccb *ccb = aha1542->ccb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 587 | u8 mb_cmd[5] = { CMD_MBINIT, AHA1542_MAILBOXES, 0, 0, 0}; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | for (i = 0; i < AHA1542_MAILBOXES; i++) { |
| 590 | mb[i].status = mb[AHA1542_MAILBOXES + i].status = 0; |
Ondrej Zary | 10be625 | 2015-02-06 23:11:24 +0100 | [diff] [blame] | 591 | any2scsi(mb[i].ccbptr, isa_virt_to_bus(&ccb[i])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | }; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 593 | aha1542_intr_reset(sh->io_port); /* reset interrupts, so they don't block */ |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 594 | any2scsi((mb_cmd + 2), isa_virt_to_bus(mb)); |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 595 | if (aha1542_out(sh->io_port, mb_cmd, 5)) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 596 | shost_printk(KERN_ERR, sh, "failed setting up mailboxes\n"); |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 597 | aha1542_intr_reset(sh->io_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | } |
| 599 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 600 | static int aha1542_getconfig(struct Scsi_Host *sh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | { |
Ondrej Zary | cb5b570 | 2015-02-06 23:11:27 +0100 | [diff] [blame] | 602 | u8 inquiry_result[3]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | int i; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 604 | i = inb(STATUS(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | if (i & DF) { |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 606 | i = inb(DATA(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | }; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 608 | aha1542_outb(sh->io_port, CMD_RETCONF); |
| 609 | aha1542_in(sh->io_port, inquiry_result, 3, 0); |
| 610 | if (!wait_mask(INTRFLAGS(sh->io_port), INTRMASK, HACC, 0, 0)) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 611 | shost_printk(KERN_ERR, sh, "error querying board settings\n"); |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 612 | aha1542_intr_reset(sh->io_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | switch (inquiry_result[0]) { |
| 614 | case 0x80: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 615 | sh->dma_channel = 7; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | break; |
| 617 | case 0x40: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 618 | sh->dma_channel = 6; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | break; |
| 620 | case 0x20: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 621 | sh->dma_channel = 5; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | break; |
| 623 | case 0x01: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 624 | sh->dma_channel = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 625 | break; |
| 626 | case 0: |
| 627 | /* This means that the adapter, although Adaptec 1542 compatible, doesn't use a DMA channel. |
| 628 | Currently only aware of the BusLogic BT-445S VL-Bus adapter which needs this. */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 629 | sh->dma_channel = 0xFF; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | break; |
| 631 | default: |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 632 | shost_printk(KERN_ERR, sh, "Unable to determine DMA channel.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | return -1; |
| 634 | }; |
| 635 | switch (inquiry_result[1]) { |
| 636 | case 0x40: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 637 | sh->irq = 15; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | break; |
| 639 | case 0x20: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 640 | sh->irq = 14; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 641 | break; |
| 642 | case 0x8: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 643 | sh->irq = 12; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | break; |
| 645 | case 0x4: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 646 | sh->irq = 11; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | break; |
| 648 | case 0x2: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 649 | sh->irq = 10; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | break; |
| 651 | case 0x1: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 652 | sh->irq = 9; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | break; |
| 654 | default: |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 655 | shost_printk(KERN_ERR, sh, "Unable to determine IRQ level.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | return -1; |
| 657 | }; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 658 | sh->this_id = inquiry_result[2] & 7; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | return 0; |
| 660 | } |
| 661 | |
| 662 | /* This function should only be called for 1542C boards - we can detect |
| 663 | the special firmware settings and unlock the board */ |
| 664 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 665 | static int aha1542_mbenable(struct Scsi_Host *sh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | { |
Ondrej Zary | cb5b570 | 2015-02-06 23:11:27 +0100 | [diff] [blame] | 667 | static u8 mbenable_cmd[3]; |
| 668 | static u8 mbenable_result[2]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | int retval; |
| 670 | |
| 671 | retval = BIOS_TRANSLATION_6432; |
| 672 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 673 | aha1542_outb(sh->io_port, CMD_EXTBIOS); |
| 674 | if (aha1542_in(sh->io_port, mbenable_result, 2, 100)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | return retval; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 676 | if (!wait_mask(INTRFLAGS(sh->io_port), INTRMASK, HACC, 0, 100)) |
Ondrej Zary | 2093bfa | 2015-02-06 23:11:31 +0100 | [diff] [blame] | 677 | goto fail; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 678 | aha1542_intr_reset(sh->io_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | |
| 680 | if ((mbenable_result[0] & 0x08) || mbenable_result[1]) { |
| 681 | mbenable_cmd[0] = CMD_MBENABLE; |
| 682 | mbenable_cmd[1] = 0; |
| 683 | mbenable_cmd[2] = mbenable_result[1]; |
| 684 | |
| 685 | if ((mbenable_result[0] & 0x08) && (mbenable_result[1] & 0x03)) |
| 686 | retval = BIOS_TRANSLATION_25563; |
| 687 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 688 | if (aha1542_out(sh->io_port, mbenable_cmd, 3)) |
Ondrej Zary | 2093bfa | 2015-02-06 23:11:31 +0100 | [diff] [blame] | 689 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | }; |
| 691 | while (0) { |
| 692 | fail: |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 693 | shost_printk(KERN_ERR, sh, "Mailbox init failed\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | } |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 695 | aha1542_intr_reset(sh->io_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | return retval; |
| 697 | } |
| 698 | |
| 699 | /* Query the board to find out if it is a 1542 or a 1740, or whatever. */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 700 | static int aha1542_query(struct Scsi_Host *sh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | { |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 702 | struct aha1542_hostdata *aha1542 = shost_priv(sh); |
Ondrej Zary | cb5b570 | 2015-02-06 23:11:27 +0100 | [diff] [blame] | 703 | u8 inquiry_result[4]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 704 | int i; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 705 | i = inb(STATUS(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 706 | if (i & DF) { |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 707 | i = inb(DATA(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | }; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 709 | aha1542_outb(sh->io_port, CMD_INQUIRY); |
| 710 | aha1542_in(sh->io_port, inquiry_result, 4, 0); |
| 711 | if (!wait_mask(INTRFLAGS(sh->io_port), INTRMASK, HACC, 0, 0)) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 712 | shost_printk(KERN_ERR, sh, "error querying card type\n"); |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 713 | aha1542_intr_reset(sh->io_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 715 | aha1542->bios_translation = BIOS_TRANSLATION_6432; /* Default case */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | |
| 717 | /* For an AHA1740 series board, we ignore the board since there is a |
| 718 | hardware bug which can lead to wrong blocks being returned if the board |
| 719 | is operating in the 1542 emulation mode. Since there is an extended mode |
| 720 | driver, we simply ignore the board and let the 1740 driver pick it up. |
| 721 | */ |
| 722 | |
| 723 | if (inquiry_result[0] == 0x43) { |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 724 | shost_printk(KERN_INFO, sh, "Emulation mode not supported for AHA-1740 hardware, use aha1740 driver instead.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | return 1; |
| 726 | }; |
| 727 | |
| 728 | /* Always call this - boards that do not support extended bios translation |
| 729 | will ignore the command, and we will set the proper default */ |
| 730 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 731 | aha1542->bios_translation = aha1542_mbenable(sh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | |
| 733 | return 0; |
| 734 | } |
| 735 | |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 736 | static u8 dma_speed_hw(int dma_speed) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | { |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 738 | switch (dma_speed) { |
| 739 | case 5: |
| 740 | return 0x00; |
| 741 | case 6: |
| 742 | return 0x04; |
| 743 | case 7: |
| 744 | return 0x01; |
| 745 | case 8: |
| 746 | return 0x02; |
| 747 | case 10: |
| 748 | return 0x03; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 750 | |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 751 | return 0xff; /* invalid */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 752 | } |
| 753 | |
Ondrej Zary | b847fd0 | 2015-02-06 23:11:38 +0100 | [diff] [blame] | 754 | /* Set the Bus on/off-times as not to ruin floppy performance */ |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 755 | static void aha1542_set_bus_times(struct Scsi_Host *sh, int bus_on, int bus_off, int dma_speed) |
Ondrej Zary | b847fd0 | 2015-02-06 23:11:38 +0100 | [diff] [blame] | 756 | { |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 757 | if (bus_on > 0) { |
| 758 | u8 oncmd[] = { CMD_BUSON_TIME, clamp(bus_on, 2, 15) }; |
Ondrej Zary | b847fd0 | 2015-02-06 23:11:38 +0100 | [diff] [blame] | 759 | |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 760 | aha1542_intr_reset(sh->io_port); |
| 761 | if (aha1542_out(sh->io_port, oncmd, 2)) |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 762 | goto fail; |
Ondrej Zary | b847fd0 | 2015-02-06 23:11:38 +0100 | [diff] [blame] | 763 | } |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 764 | |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 765 | if (bus_off > 0) { |
| 766 | u8 offcmd[] = { CMD_BUSOFF_TIME, clamp(bus_off, 1, 64) }; |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 767 | |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 768 | aha1542_intr_reset(sh->io_port); |
| 769 | if (aha1542_out(sh->io_port, offcmd, 2)) |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 770 | goto fail; |
| 771 | } |
| 772 | |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 773 | if (dma_speed_hw(dma_speed) != 0xff) { |
| 774 | u8 dmacmd[] = { CMD_DMASPEED, dma_speed_hw(dma_speed) }; |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 775 | |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 776 | aha1542_intr_reset(sh->io_port); |
| 777 | if (aha1542_out(sh->io_port, dmacmd, 2)) |
Ondrej Zary | b847fd0 | 2015-02-06 23:11:38 +0100 | [diff] [blame] | 778 | goto fail; |
| 779 | } |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 780 | aha1542_intr_reset(sh->io_port); |
Ondrej Zary | b847fd0 | 2015-02-06 23:11:38 +0100 | [diff] [blame] | 781 | return; |
| 782 | fail: |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 783 | shost_printk(KERN_ERR, sh, "setting bus on/off-time failed\n"); |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 784 | aha1542_intr_reset(sh->io_port); |
Ondrej Zary | b847fd0 | 2015-02-06 23:11:38 +0100 | [diff] [blame] | 785 | } |
| 786 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 787 | /* return non-zero on detection */ |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 788 | static struct Scsi_Host *aha1542_hw_init(struct scsi_host_template *tpnt, struct device *pdev, int indx) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 789 | { |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 790 | unsigned int base_io = io[indx]; |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 791 | struct Scsi_Host *sh; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 792 | struct aha1542_hostdata *aha1542; |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 793 | char dma_info[] = "no DMA"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 795 | if (base_io == 0) |
| 796 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 798 | if (!request_region(base_io, AHA1542_REGION_SIZE, "aha1542")) |
| 799 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 800 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 801 | sh = scsi_host_alloc(tpnt, sizeof(struct aha1542_hostdata)); |
| 802 | if (!sh) |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 803 | goto release; |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 804 | aha1542 = shost_priv(sh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 806 | sh->unique_id = base_io; |
| 807 | sh->io_port = base_io; |
| 808 | sh->n_io_port = AHA1542_REGION_SIZE; |
| 809 | aha1542->aha1542_last_mbi_used = 2 * AHA1542_MAILBOXES - 1; |
| 810 | aha1542->aha1542_last_mbo_used = AHA1542_MAILBOXES - 1; |
| 811 | |
| 812 | if (!aha1542_test_port(sh)) |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 813 | goto unregister; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 814 | |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 815 | aha1542_set_bus_times(sh, bus_on[indx], bus_off[indx], dma_speed[indx]); |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 816 | if (aha1542_query(sh)) |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 817 | goto unregister; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 818 | if (aha1542_getconfig(sh) == -1) |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 819 | goto unregister; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 821 | if (sh->dma_channel != 0xFF) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 822 | snprintf(dma_info, sizeof(dma_info), "DMA %d", sh->dma_channel); |
| 823 | shost_printk(KERN_INFO, sh, "Adaptec AHA-1542 (SCSI-ID %d) at IO 0x%x, IRQ %d, %s\n", |
| 824 | sh->this_id, base_io, sh->irq, dma_info); |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 825 | if (aha1542->bios_translation == BIOS_TRANSLATION_25563) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 826 | shost_printk(KERN_INFO, sh, "Using extended bios translation\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 827 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 828 | setup_mailboxes(sh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 829 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 830 | if (request_irq(sh->irq, do_aha1542_intr_handle, 0, |
| 831 | "aha1542", sh)) { |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 832 | shost_printk(KERN_ERR, sh, "Unable to allocate IRQ.\n"); |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 833 | goto unregister; |
| 834 | } |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 835 | if (sh->dma_channel != 0xFF) { |
| 836 | if (request_dma(sh->dma_channel, "aha1542")) { |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 837 | shost_printk(KERN_ERR, sh, "Unable to allocate DMA channel.\n"); |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 838 | goto free_irq; |
| 839 | } |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 840 | if (sh->dma_channel == 0 || sh->dma_channel >= 5) { |
| 841 | set_dma_mode(sh->dma_channel, DMA_MODE_CASCADE); |
| 842 | enable_dma(sh->dma_channel); |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 843 | } |
| 844 | } |
Jeff Garzik | 87c4d7b | 2008-04-24 19:45:32 -0400 | [diff] [blame] | 845 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 846 | if (scsi_add_host(sh, pdev)) |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 847 | goto free_dma; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 849 | scsi_scan_host(sh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 851 | return sh; |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 852 | free_dma: |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 853 | if (sh->dma_channel != 0xff) |
| 854 | free_dma(sh->dma_channel); |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 855 | free_irq: |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 856 | free_irq(sh->irq, sh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | unregister: |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 858 | scsi_host_put(sh); |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 859 | release: |
| 860 | release_region(base_io, AHA1542_REGION_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 861 | |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 862 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | } |
| 864 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 865 | static int aha1542_release(struct Scsi_Host *sh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | { |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 867 | scsi_remove_host(sh); |
| 868 | if (sh->dma_channel != 0xff) |
| 869 | free_dma(sh->dma_channel); |
| 870 | if (sh->irq) |
| 871 | free_irq(sh->irq, sh); |
| 872 | if (sh->io_port && sh->n_io_port) |
| 873 | release_region(sh->io_port, sh->n_io_port); |
| 874 | scsi_host_put(sh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 875 | return 0; |
| 876 | } |
| 877 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 878 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | /* |
| 880 | * This is a device reset. This is handled by sending a special command |
| 881 | * to the device. |
| 882 | */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 883 | static int aha1542_dev_reset(struct scsi_cmnd *cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 884 | { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 885 | struct aha1542_hostdata *aha1542 = shost_priv(cmd->device->host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 886 | unsigned long flags; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 887 | struct mailbox *mb = aha1542->mb; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 888 | u8 target = cmd->device->id; |
| 889 | u8 lun = cmd->device->lun; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 890 | int mbo; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 891 | struct ccb *ccb = aha1542->ccb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 892 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 893 | spin_lock_irqsave(&aha1542_lock, flags); |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 894 | mbo = aha1542->aha1542_last_mbo_used + 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | if (mbo >= AHA1542_MAILBOXES) |
| 896 | mbo = 0; |
| 897 | |
| 898 | do { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 899 | if (mb[mbo].status == 0 && aha1542->int_cmds[mbo] == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | break; |
| 901 | mbo++; |
| 902 | if (mbo >= AHA1542_MAILBOXES) |
| 903 | mbo = 0; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 904 | } while (mbo != aha1542->aha1542_last_mbo_used); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 905 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 906 | if (mb[mbo].status || aha1542->int_cmds[mbo]) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 907 | panic("Unable to find empty mailbox for aha1542.\n"); |
| 908 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 909 | aha1542->int_cmds[mbo] = cmd; /* This will effectively |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 910 | prevent someone else from |
| 911 | screwing with this cdb. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 913 | aha1542->aha1542_last_mbo_used = mbo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 914 | spin_unlock_irqrestore(&aha1542_lock, flags); |
| 915 | |
Ondrej Zary | 10be625 | 2015-02-06 23:11:24 +0100 | [diff] [blame] | 916 | any2scsi(mb[mbo].ccbptr, isa_virt_to_bus(&ccb[mbo])); /* This gets trashed for some reason */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 917 | |
| 918 | memset(&ccb[mbo], 0, sizeof(struct ccb)); |
| 919 | |
| 920 | ccb[mbo].op = 0x81; /* BUS DEVICE RESET */ |
| 921 | |
| 922 | ccb[mbo].idlun = (target & 7) << 5 | (lun & 7); /*SCSI Target Id */ |
| 923 | |
| 924 | ccb[mbo].linkptr[0] = ccb[mbo].linkptr[1] = ccb[mbo].linkptr[2] = 0; |
| 925 | ccb[mbo].commlinkid = 0; |
| 926 | |
| 927 | /* |
| 928 | * Now tell the 1542 to flush all pending commands for this |
| 929 | * target |
| 930 | */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 931 | aha1542_outb(cmd->device->host->io_port, CMD_START_SCSI); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 932 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 933 | scmd_printk(KERN_WARNING, cmd, |
Jeff Garzik | 017560f | 2005-10-24 18:04:36 -0400 | [diff] [blame] | 934 | "Trying device reset for target\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 935 | |
| 936 | return SUCCESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 937 | } |
| 938 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 939 | static int aha1542_reset(struct scsi_cmnd *cmd, u8 reset_cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 940 | { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 941 | struct aha1542_hostdata *aha1542 = shost_priv(cmd->device->host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 942 | int i; |
| 943 | |
| 944 | /* |
| 945 | * This does a scsi reset for all devices on the bus. |
| 946 | * In principle, we could also reset the 1542 - should |
| 947 | * we do this? Try this first, and we can add that later |
| 948 | * if it turns out to be useful. |
| 949 | */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 950 | outb(reset_cmd, CONTROL(cmd->device->host->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 951 | |
| 952 | /* |
| 953 | * Wait for the thing to settle down a bit. Unfortunately |
| 954 | * this is going to basically lock up the machine while we |
| 955 | * wait for this to complete. To be 100% correct, we need to |
| 956 | * check for timeout, and if we are doing something like this |
| 957 | * we are pretty desperate anyways. |
| 958 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 959 | ssleep(4); |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 960 | spin_lock_irq(cmd->device->host->host_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 961 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 962 | if (!wait_mask(STATUS(cmd->device->host->io_port), |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 963 | STATMASK, INIT | IDLE, STST | DIAGF | INVDCMD | DF | CDF, 0)) { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 964 | spin_unlock_irq(cmd->device->host->host_lock); |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 965 | return FAILED; |
| 966 | } |
Ondrej Zary | 8537cba | 2015-02-06 23:11:37 +0100 | [diff] [blame] | 967 | /* |
| 968 | * We need to do this too before the 1542 can interact with |
| 969 | * us again after host reset. |
| 970 | */ |
| 971 | if (reset_cmd & HRST) |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 972 | setup_mailboxes(cmd->device->host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 973 | /* |
| 974 | * Now try to pick up the pieces. For all pending commands, |
| 975 | * free any internal data structures, and basically clear things |
| 976 | * out. We do not try and restart any commands or anything - |
| 977 | * the strategy handler takes care of that crap. |
| 978 | */ |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 979 | shost_printk(KERN_WARNING, cmd->device->host, "Sent BUS RESET to scsi host %d\n", cmd->device->host->host_no); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 980 | |
| 981 | for (i = 0; i < AHA1542_MAILBOXES; i++) { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 982 | if (aha1542->int_cmds[i] != NULL) { |
| 983 | struct scsi_cmnd *tmp_cmd; |
| 984 | tmp_cmd = aha1542->int_cmds[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 985 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 986 | if (tmp_cmd->device->soft_reset) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 987 | /* |
| 988 | * If this device implements the soft reset option, |
| 989 | * then it is still holding onto the command, and |
| 990 | * may yet complete it. In this case, we don't |
| 991 | * flush the data. |
| 992 | */ |
| 993 | continue; |
| 994 | } |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 995 | kfree(tmp_cmd->host_scribble); |
| 996 | tmp_cmd->host_scribble = NULL; |
| 997 | aha1542->int_cmds[i] = NULL; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 998 | aha1542->mb[i].status = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | } |
| 1000 | } |
| 1001 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 1002 | spin_unlock_irq(cmd->device->host->host_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1003 | return SUCCESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1004 | } |
| 1005 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 1006 | static int aha1542_bus_reset(struct scsi_cmnd *cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1007 | { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 1008 | return aha1542_reset(cmd, SCRST); |
Ondrej Zary | 8537cba | 2015-02-06 23:11:37 +0100 | [diff] [blame] | 1009 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1010 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 1011 | static int aha1542_host_reset(struct scsi_cmnd *cmd) |
Ondrej Zary | 8537cba | 2015-02-06 23:11:37 +0100 | [diff] [blame] | 1012 | { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 1013 | return aha1542_reset(cmd, HRST | SCRST); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1014 | } |
| 1015 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1016 | static int aha1542_biosparam(struct scsi_device *sdev, |
Ondrej Zary | 17787a0 | 2015-02-06 23:11:42 +0100 | [diff] [blame] | 1017 | struct block_device *bdev, sector_t capacity, int geom[]) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1018 | { |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 1019 | struct aha1542_hostdata *aha1542 = shost_priv(sdev->host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1020 | |
Ondrej Zary | 17787a0 | 2015-02-06 23:11:42 +0100 | [diff] [blame] | 1021 | if (capacity >= 0x200000 && |
| 1022 | aha1542->bios_translation == BIOS_TRANSLATION_25563) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1023 | /* Please verify that this is the same as what DOS returns */ |
Ondrej Zary | 17787a0 | 2015-02-06 23:11:42 +0100 | [diff] [blame] | 1024 | geom[0] = 255; /* heads */ |
| 1025 | geom[1] = 63; /* sectors */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1026 | } else { |
Ondrej Zary | 17787a0 | 2015-02-06 23:11:42 +0100 | [diff] [blame] | 1027 | geom[0] = 64; /* heads */ |
| 1028 | geom[1] = 32; /* sectors */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1029 | } |
Ondrej Zary | 17787a0 | 2015-02-06 23:11:42 +0100 | [diff] [blame] | 1030 | geom[2] = sector_div(capacity, geom[0] * geom[1]); /* cylinders */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1031 | |
| 1032 | return 0; |
| 1033 | } |
| 1034 | MODULE_LICENSE("GPL"); |
| 1035 | |
Christoph Hellwig | d0be4a7d | 2005-10-31 18:31:40 +0100 | [diff] [blame] | 1036 | static struct scsi_host_template driver_template = { |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 1037 | .module = THIS_MODULE, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1038 | .proc_name = "aha1542", |
| 1039 | .name = "Adaptec 1542", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1040 | .queuecommand = aha1542_queuecommand, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | .eh_device_reset_handler= aha1542_dev_reset, |
| 1042 | .eh_bus_reset_handler = aha1542_bus_reset, |
| 1043 | .eh_host_reset_handler = aha1542_host_reset, |
| 1044 | .bios_param = aha1542_biosparam, |
| 1045 | .can_queue = AHA1542_MAILBOXES, |
| 1046 | .this_id = 7, |
Ondrej Zary | 10be625 | 2015-02-06 23:11:24 +0100 | [diff] [blame] | 1047 | .sg_tablesize = 16, |
| 1048 | .cmd_per_lun = 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1049 | .unchecked_isa_dma = 1, |
| 1050 | .use_clustering = ENABLE_CLUSTERING, |
| 1051 | }; |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 1052 | |
| 1053 | static int aha1542_isa_match(struct device *pdev, unsigned int ndev) |
| 1054 | { |
| 1055 | struct Scsi_Host *sh = aha1542_hw_init(&driver_template, pdev, ndev); |
| 1056 | |
| 1057 | if (!sh) |
| 1058 | return 0; |
| 1059 | |
| 1060 | dev_set_drvdata(pdev, sh); |
| 1061 | return 1; |
| 1062 | } |
| 1063 | |
| 1064 | static int aha1542_isa_remove(struct device *pdev, |
| 1065 | unsigned int ndev) |
| 1066 | { |
| 1067 | aha1542_release(dev_get_drvdata(pdev)); |
| 1068 | dev_set_drvdata(pdev, NULL); |
| 1069 | return 0; |
| 1070 | } |
| 1071 | |
| 1072 | static struct isa_driver aha1542_isa_driver = { |
| 1073 | .match = aha1542_isa_match, |
| 1074 | .remove = aha1542_isa_remove, |
| 1075 | .driver = { |
| 1076 | .name = "aha1542" |
| 1077 | }, |
| 1078 | }; |
| 1079 | static int isa_registered; |
| 1080 | |
| 1081 | #ifdef CONFIG_PNP |
| 1082 | static struct pnp_device_id aha1542_pnp_ids[] = { |
| 1083 | { .id = "ADP1542" }, |
| 1084 | { .id = "" } |
| 1085 | }; |
| 1086 | MODULE_DEVICE_TABLE(pnp, aha1542_pnp_ids); |
| 1087 | |
| 1088 | static int aha1542_pnp_probe(struct pnp_dev *pdev, const struct pnp_device_id *id) |
| 1089 | { |
| 1090 | int indx; |
| 1091 | struct Scsi_Host *sh; |
| 1092 | |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 1093 | for (indx = 0; indx < ARRAY_SIZE(io); indx++) { |
| 1094 | if (io[indx]) |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 1095 | continue; |
| 1096 | |
| 1097 | if (pnp_activate_dev(pdev) < 0) |
| 1098 | continue; |
| 1099 | |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 1100 | io[indx] = pnp_port_start(pdev, 0); |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 1101 | |
| 1102 | /* The card can be queried for its DMA, we have |
| 1103 | the DMA set up that is enough */ |
| 1104 | |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame^] | 1105 | dev_info(&pdev->dev, "ISAPnP found an AHA1535 at I/O 0x%03X", io[indx]); |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 1106 | } |
| 1107 | |
| 1108 | sh = aha1542_hw_init(&driver_template, &pdev->dev, indx); |
| 1109 | if (!sh) |
| 1110 | return -ENODEV; |
| 1111 | |
| 1112 | pnp_set_drvdata(pdev, sh); |
| 1113 | return 0; |
| 1114 | } |
| 1115 | |
| 1116 | static void aha1542_pnp_remove(struct pnp_dev *pdev) |
| 1117 | { |
| 1118 | aha1542_release(pnp_get_drvdata(pdev)); |
| 1119 | pnp_set_drvdata(pdev, NULL); |
| 1120 | } |
| 1121 | |
| 1122 | static struct pnp_driver aha1542_pnp_driver = { |
| 1123 | .name = "aha1542", |
| 1124 | .id_table = aha1542_pnp_ids, |
| 1125 | .probe = aha1542_pnp_probe, |
| 1126 | .remove = aha1542_pnp_remove, |
| 1127 | }; |
| 1128 | static int pnp_registered; |
| 1129 | #endif /* CONFIG_PNP */ |
| 1130 | |
| 1131 | static int __init aha1542_init(void) |
| 1132 | { |
| 1133 | int ret = 0; |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 1134 | |
| 1135 | #ifdef CONFIG_PNP |
| 1136 | if (isapnp) { |
| 1137 | ret = pnp_register_driver(&aha1542_pnp_driver); |
| 1138 | if (!ret) |
| 1139 | pnp_registered = 1; |
| 1140 | } |
| 1141 | #endif |
| 1142 | ret = isa_register_driver(&aha1542_isa_driver, MAXBOARDS); |
| 1143 | if (!ret) |
| 1144 | isa_registered = 1; |
| 1145 | |
| 1146 | #ifdef CONFIG_PNP |
| 1147 | if (pnp_registered) |
| 1148 | ret = 0; |
| 1149 | #endif |
| 1150 | if (isa_registered) |
| 1151 | ret = 0; |
| 1152 | |
| 1153 | return ret; |
| 1154 | } |
| 1155 | |
| 1156 | static void __exit aha1542_exit(void) |
| 1157 | { |
| 1158 | #ifdef CONFIG_PNP |
| 1159 | if (pnp_registered) |
| 1160 | pnp_unregister_driver(&aha1542_pnp_driver); |
| 1161 | #endif |
| 1162 | if (isa_registered) |
| 1163 | isa_unregister_driver(&aha1542_isa_driver); |
| 1164 | } |
| 1165 | |
| 1166 | module_init(aha1542_init); |
| 1167 | module_exit(aha1542_exit); |