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 | |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 27 | #define MAXBOARDS 4 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 29 | static bool isapnp = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | module_param(isapnp, bool, 0); |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 31 | MODULE_PARM_DESC(isapnp, "enable PnP support (default=1)"); |
| 32 | |
| 33 | static int io[MAXBOARDS] = { 0x330, 0x334, 0, 0 }; |
| 34 | module_param_array(io, int, NULL, 0); |
| 35 | MODULE_PARM_DESC(io, "base IO address of controller (0x130,0x134,0x230,0x234,0x330,0x334, default=0x330,0x334)"); |
| 36 | |
| 37 | /* time AHA spends on the AT-bus during data transfer */ |
| 38 | static int bus_on[MAXBOARDS] = { -1, -1, -1, -1 }; /* power-on default: 11us */ |
| 39 | module_param_array(bus_on, int, NULL, 0); |
| 40 | MODULE_PARM_DESC(bus_on, "bus on time [us] (2-15, default=-1 [HW default: 11])"); |
| 41 | |
| 42 | /* time AHA spends off the bus (not to monopolize it) during data transfer */ |
| 43 | static int bus_off[MAXBOARDS] = { -1, -1, -1, -1 }; /* power-on default: 4us */ |
| 44 | module_param_array(bus_off, int, NULL, 0); |
| 45 | MODULE_PARM_DESC(bus_off, "bus off time [us] (1-64, default=-1 [HW default: 4])"); |
| 46 | |
| 47 | /* default is jumper selected (J1 on 1542A), factory default = 5 MB/s */ |
| 48 | static int dma_speed[MAXBOARDS] = { -1, -1, -1, -1 }; |
| 49 | module_param_array(dma_speed, int, NULL, 0); |
| 50 | 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] | 51 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | #define BIOS_TRANSLATION_6432 1 /* Default case these days */ |
| 53 | #define BIOS_TRANSLATION_25563 2 /* Big disk case */ |
| 54 | |
| 55 | struct aha1542_hostdata { |
| 56 | /* This will effectively start both of them at the first mailbox */ |
| 57 | int bios_translation; /* Mapping bios uses - for compatibility */ |
| 58 | int aha1542_last_mbi_used; |
| 59 | int aha1542_last_mbo_used; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 60 | struct scsi_cmnd *int_cmds[AHA1542_MAILBOXES]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | struct mailbox mb[2 * AHA1542_MAILBOXES]; |
| 62 | struct ccb ccb[AHA1542_MAILBOXES]; |
| 63 | }; |
| 64 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | static DEFINE_SPINLOCK(aha1542_lock); |
| 66 | |
Ondrej Zary | f1bbef6 | 2015-02-06 23:11:26 +0100 | [diff] [blame] | 67 | static inline void aha1542_intr_reset(u16 base) |
| 68 | { |
| 69 | outb(IRST, CONTROL(base)); |
| 70 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | |
Ondrej Zary | 2093bfa | 2015-02-06 23:11:31 +0100 | [diff] [blame] | 72 | static inline bool wait_mask(u16 port, u8 mask, u8 allof, u8 noneof, int timeout) |
| 73 | { |
| 74 | bool delayed = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | |
Ondrej Zary | 2093bfa | 2015-02-06 23:11:31 +0100 | [diff] [blame] | 76 | if (timeout == 0) { |
| 77 | timeout = 3000000; |
| 78 | delayed = false; |
| 79 | } |
| 80 | |
| 81 | while (1) { |
| 82 | u8 bits = inb(port) & mask; |
| 83 | if ((bits & allof) == allof && ((bits & noneof) == 0)) |
| 84 | break; |
| 85 | if (delayed) |
| 86 | mdelay(1); |
| 87 | if (--timeout == 0) |
| 88 | return false; |
| 89 | } |
| 90 | |
| 91 | return true; |
| 92 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | /* This is a bit complicated, but we need to make sure that an interrupt |
| 95 | routine does not send something out while we are in the middle of this. |
| 96 | Fortunately, it is only at boot time that multi-byte messages |
| 97 | are ever sent. */ |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 98 | static int aha1542_outb(unsigned int base, u8 val) |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 99 | { |
| 100 | unsigned long flags; |
| 101 | |
| 102 | while (1) { |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 103 | if (!wait_mask(STATUS(base), CDF, 0, CDF, 0)) |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 104 | return 1; |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 105 | spin_lock_irqsave(&aha1542_lock, flags); |
| 106 | if (inb(STATUS(base)) & CDF) { |
| 107 | spin_unlock_irqrestore(&aha1542_lock, flags); |
| 108 | continue; |
| 109 | } |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 110 | outb(val, DATA(base)); |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 111 | spin_unlock_irqrestore(&aha1542_lock, flags); |
| 112 | return 0; |
| 113 | } |
| 114 | } |
| 115 | |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 116 | static int aha1542_out(unsigned int base, u8 *buf, int len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | { |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 118 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 120 | spin_lock_irqsave(&aha1542_lock, flags); |
| 121 | while (len--) { |
| 122 | if (!wait_mask(STATUS(base), CDF, 0, CDF, 0)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | spin_unlock_irqrestore(&aha1542_lock, flags); |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 124 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | } |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 126 | outb(*buf++, DATA(base)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | } |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 128 | spin_unlock_irqrestore(&aha1542_lock, flags); |
Ondrej Zary | 23e6940 | 2015-02-06 23:11:39 +0100 | [diff] [blame] | 129 | if (!wait_mask(INTRFLAGS(base), INTRMASK, HACC, 0, 0)) |
| 130 | return 1; |
Ondrej Zary | 0c2b648 | 2015-02-06 23:11:33 +0100 | [diff] [blame] | 131 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | } |
| 134 | |
| 135 | /* Only used at boot time, so we do not need to worry about latency as much |
| 136 | here */ |
| 137 | |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 138 | 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] | 139 | { |
| 140 | unsigned long flags; |
| 141 | |
| 142 | spin_lock_irqsave(&aha1542_lock, flags); |
| 143 | while (len--) { |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 144 | if (!wait_mask(STATUS(base), DF, DF, 0, timeout)) { |
| 145 | spin_unlock_irqrestore(&aha1542_lock, flags); |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 146 | return 1; |
| 147 | } |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 148 | *buf++ = inb(DATA(base)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | } |
| 150 | spin_unlock_irqrestore(&aha1542_lock, flags); |
| 151 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | } |
| 153 | |
| 154 | static int makecode(unsigned hosterr, unsigned scsierr) |
| 155 | { |
| 156 | switch (hosterr) { |
| 157 | case 0x0: |
| 158 | case 0xa: /* Linked command complete without error and linked normally */ |
| 159 | case 0xb: /* Linked command complete without error, interrupt generated */ |
| 160 | hosterr = 0; |
| 161 | break; |
| 162 | |
| 163 | case 0x11: /* Selection time out-The initiator selection or target |
| 164 | reselection was not complete within the SCSI Time out period */ |
| 165 | hosterr = DID_TIME_OUT; |
| 166 | break; |
| 167 | |
| 168 | case 0x12: /* Data overrun/underrun-The target attempted to transfer more data |
| 169 | than was allocated by the Data Length field or the sum of the |
| 170 | Scatter / Gather Data Length fields. */ |
| 171 | |
| 172 | case 0x13: /* Unexpected bus free-The target dropped the SCSI BSY at an unexpected time. */ |
| 173 | |
| 174 | case 0x15: /* MBO command was not 00, 01 or 02-The first byte of the CB was |
| 175 | invalid. This usually indicates a software failure. */ |
| 176 | |
| 177 | case 0x16: /* Invalid CCB Operation Code-The first byte of the CCB was invalid. |
| 178 | This usually indicates a software failure. */ |
| 179 | |
| 180 | case 0x17: /* Linked CCB does not have the same LUN-A subsequent CCB of a set |
| 181 | of linked CCB's does not specify the same logical unit number as |
| 182 | the first. */ |
| 183 | case 0x18: /* Invalid Target Direction received from Host-The direction of a |
| 184 | Target Mode CCB was invalid. */ |
| 185 | |
| 186 | case 0x19: /* Duplicate CCB Received in Target Mode-More than once CCB was |
| 187 | received to service data transfer between the same target LUN |
| 188 | and initiator SCSI ID in the same direction. */ |
| 189 | |
| 190 | case 0x1a: /* Invalid CCB or Segment List Parameter-A segment list with a zero |
| 191 | length segment or invalid segment list boundaries was received. |
| 192 | A CCB parameter was invalid. */ |
Ondrej Zary | fde1fb8 | 2015-02-06 23:11:52 +0100 | [diff] [blame^] | 193 | #ifdef DEBUG |
| 194 | printk("Aha1542: %x %x\n", hosterr, scsierr); |
| 195 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | hosterr = DID_ERROR; /* Couldn't find any better */ |
| 197 | break; |
| 198 | |
| 199 | case 0x14: /* Target bus phase sequence failure-An invalid bus phase or bus |
| 200 | phase sequence was requested by the target. The host adapter |
| 201 | will generate a SCSI Reset Condition, notifying the host with |
| 202 | a SCRD interrupt */ |
| 203 | hosterr = DID_RESET; |
| 204 | break; |
| 205 | default: |
| 206 | printk(KERN_ERR "aha1542: makecode: unknown hoststatus %x\n", hosterr); |
| 207 | break; |
| 208 | } |
| 209 | return scsierr | (hosterr << 16); |
| 210 | } |
| 211 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 212 | static int aha1542_test_port(struct Scsi_Host *sh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | { |
Ondrej Zary | cb5b570 | 2015-02-06 23:11:27 +0100 | [diff] [blame] | 214 | u8 inquiry_result[4]; |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 215 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | |
| 217 | /* Quick and dirty test for presence of the card. */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 218 | if (inb(STATUS(sh->io_port)) == 0xff) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | return 0; |
| 220 | |
| 221 | /* Reset the adapter. I ought to make a hard reset, but it's not really necessary */ |
| 222 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | /* In case some other card was probing here, reset interrupts */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 224 | 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] | 225 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 226 | outb(SRST | IRST /*|SCRST */ , CONTROL(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | |
| 228 | mdelay(20); /* Wait a little bit for things to settle down. */ |
| 229 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | /* Expect INIT and IDLE, any of the others are bad */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 231 | 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] | 232 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | /* Shouldn't have generated any interrupts during reset */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 235 | if (inb(INTRFLAGS(sh->io_port)) & INTRMASK) |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 236 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | /* Perform a host adapter inquiry instead so we do not need to set |
| 239 | up the mailboxes ahead of time */ |
| 240 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 241 | aha1542_outb(sh->io_port, CMD_INQUIRY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 243 | for (i = 0; i < 4; i++) { |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 244 | if (!wait_mask(STATUS(sh->io_port), DF, DF, 0, 0)) |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 245 | return 0; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 246 | inquiry_result[i] = inb(DATA(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | } |
| 248 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | /* Reading port should reset DF */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 250 | if (inb(STATUS(sh->io_port)) & DF) |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 251 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | /* When HACC, command is completed, and we're though testing */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 254 | if (!wait_mask(INTRFLAGS(sh->io_port), HACC, HACC, 0, 0)) |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 255 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | /* Clear interrupts */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 258 | outb(IRST, CONTROL(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | |
Ondrej Zary | bdebe22 | 2015-02-06 23:11:35 +0100 | [diff] [blame] | 260 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | } |
| 262 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | /* A "high" level interrupt handler */ |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 264 | static void aha1542_intr_handle(struct Scsi_Host *sh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | { |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 266 | struct aha1542_hostdata *aha1542 = shost_priv(sh); |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 267 | void (*my_done)(struct scsi_cmnd *) = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | int errstatus, mbi, mbo, mbistatus; |
| 269 | int number_serviced; |
| 270 | unsigned long flags; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 271 | struct scsi_cmnd *tmp_cmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | int flag; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 273 | struct mailbox *mb = aha1542->mb; |
| 274 | struct ccb *ccb = aha1542->ccb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | |
| 276 | #ifdef DEBUG |
| 277 | { |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 278 | flag = inb(INTRFLAGS(sh->io_port)); |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 279 | shost_printk(KERN_DEBUG, sh, "aha1542_intr_handle: "); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | if (!(flag & ANYINTR)) |
| 281 | printk("no interrupt?"); |
| 282 | if (flag & MBIF) |
| 283 | printk("MBIF "); |
| 284 | if (flag & MBOA) |
| 285 | printk("MBOF "); |
| 286 | if (flag & HACC) |
| 287 | printk("HACC "); |
| 288 | if (flag & SCRD) |
| 289 | printk("SCRD "); |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 290 | printk("status %02x\n", inb(STATUS(sh->io_port))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | }; |
| 292 | #endif |
| 293 | number_serviced = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | |
| 295 | while (1 == 1) { |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 296 | flag = inb(INTRFLAGS(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | |
| 298 | /* Check for unusual interrupts. If any of these happen, we should |
| 299 | probably do something special, but for now just printing a message |
| 300 | is sufficient. A SCSI reset detected is something that we really |
| 301 | need to deal with in some way. */ |
| 302 | if (flag & ~MBIF) { |
| 303 | if (flag & MBOA) |
| 304 | printk("MBOF "); |
| 305 | if (flag & HACC) |
| 306 | printk("HACC "); |
Ondrej Zary | dfd7c99 | 2015-02-06 23:11:36 +0100 | [diff] [blame] | 307 | if (flag & SCRD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | printk("SCRD "); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | } |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 310 | aha1542_intr_reset(sh->io_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | |
| 312 | spin_lock_irqsave(&aha1542_lock, flags); |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 313 | mbi = aha1542->aha1542_last_mbi_used + 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | if (mbi >= 2 * AHA1542_MAILBOXES) |
| 315 | mbi = AHA1542_MAILBOXES; |
| 316 | |
| 317 | do { |
| 318 | if (mb[mbi].status != 0) |
| 319 | break; |
| 320 | mbi++; |
| 321 | if (mbi >= 2 * AHA1542_MAILBOXES) |
| 322 | mbi = AHA1542_MAILBOXES; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 323 | } while (mbi != aha1542->aha1542_last_mbi_used); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | |
| 325 | if (mb[mbi].status == 0) { |
| 326 | spin_unlock_irqrestore(&aha1542_lock, flags); |
| 327 | /* Hmm, no mail. Must have read it the last time around */ |
Ondrej Zary | dfd7c99 | 2015-02-06 23:11:36 +0100 | [diff] [blame] | 328 | if (!number_serviced) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 329 | shost_printk(KERN_WARNING, sh, "interrupt received, but no mail.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | return; |
| 331 | }; |
| 332 | |
Ondrej Zary | 10be625 | 2015-02-06 23:11:24 +0100 | [diff] [blame] | 333 | 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] | 334 | mbistatus = mb[mbi].status; |
| 335 | mb[mbi].status = 0; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 336 | aha1542->aha1542_last_mbi_used = mbi; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | spin_unlock_irqrestore(&aha1542_lock, flags); |
| 338 | |
| 339 | #ifdef DEBUG |
Ondrej Zary | fde1fb8 | 2015-02-06 23:11:52 +0100 | [diff] [blame^] | 340 | if (ccb[mbo].tarstat | ccb[mbo].hastat) |
| 341 | shost_printk(KERN_DEBUG, sh, "aha1542_command: returning %x (status %d)\n", |
| 342 | ccb[mbo].tarstat + ((int) ccb[mbo].hastat << 16), mb[mbi].status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | #endif |
| 344 | |
| 345 | if (mbistatus == 3) |
| 346 | continue; /* Aborted command not found */ |
| 347 | |
| 348 | #ifdef DEBUG |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 349 | shost_printk(KERN_DEBUG, sh, "...done %d %d\n", mbo, mbi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | #endif |
| 351 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 352 | tmp_cmd = aha1542->int_cmds[mbo]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 354 | if (!tmp_cmd || !tmp_cmd->scsi_done) { |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 355 | shost_printk(KERN_WARNING, sh, "Unexpected interrupt\n"); |
| 356 | 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] | 357 | ccb[mbo].hastat, ccb[mbo].idlun, mbo); |
| 358 | return; |
| 359 | } |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 360 | my_done = tmp_cmd->scsi_done; |
| 361 | kfree(tmp_cmd->host_scribble); |
| 362 | tmp_cmd->host_scribble = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | /* Fetch the sense data, and tuck it away, in the required slot. The |
| 364 | Adaptec automatically fetches it, and there is no guarantee that |
| 365 | we will still have it in the cdb when we come back */ |
| 366 | if (ccb[mbo].tarstat == 2) |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 367 | memcpy(tmp_cmd->sense_buffer, &ccb[mbo].cdb[ccb[mbo].cdblen], |
FUJITA Tomonori | b80ca4f | 2008-01-13 15:46:13 +0900 | [diff] [blame] | 368 | SCSI_SENSE_BUFFERSIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | |
| 370 | |
| 371 | /* is there mail :-) */ |
| 372 | |
| 373 | /* more error checking left out here */ |
| 374 | if (mbistatus != 1) |
| 375 | /* This is surely wrong, but I don't know what's right */ |
| 376 | errstatus = makecode(ccb[mbo].hastat, ccb[mbo].tarstat); |
| 377 | else |
| 378 | errstatus = 0; |
| 379 | |
| 380 | #ifdef DEBUG |
| 381 | if (errstatus) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 382 | shost_printk(KERN_DEBUG, sh, "(aha1542 error:%x %x %x) ", errstatus, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | ccb[mbo].hastat, ccb[mbo].tarstat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | if (ccb[mbo].tarstat == 2) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | int i; |
Ondrej Zary | fde1fb8 | 2015-02-06 23:11:52 +0100 | [diff] [blame^] | 386 | |
| 387 | printk("aha1542_intr_handle: sense:"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | for (i = 0; i < 12; i++) |
| 389 | printk("%02x ", ccb[mbo].cdb[ccb[mbo].cdblen + i]); |
| 390 | printk("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | } |
Ondrej Zary | fde1fb8 | 2015-02-06 23:11:52 +0100 | [diff] [blame^] | 392 | if (errstatus) |
| 393 | printk("aha1542_intr_handle: returning %6x\n", errstatus); |
| 394 | #endif |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 395 | tmp_cmd->result = errstatus; |
| 396 | 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] | 397 | far as queuecommand is concerned */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 398 | my_done(tmp_cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | number_serviced++; |
| 400 | }; |
| 401 | } |
| 402 | |
Ondrej Zary | 09a4483 | 2015-02-06 23:11:28 +0100 | [diff] [blame] | 403 | /* A quick wrapper for do_aha1542_intr_handle to grab the spin lock */ |
| 404 | static irqreturn_t do_aha1542_intr_handle(int dummy, void *dev_id) |
| 405 | { |
| 406 | unsigned long flags; |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 407 | struct Scsi_Host *sh = dev_id; |
Ondrej Zary | 09a4483 | 2015-02-06 23:11:28 +0100 | [diff] [blame] | 408 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 409 | spin_lock_irqsave(sh->host_lock, flags); |
| 410 | aha1542_intr_handle(sh); |
| 411 | spin_unlock_irqrestore(sh->host_lock, flags); |
Ondrej Zary | 09a4483 | 2015-02-06 23:11:28 +0100 | [diff] [blame] | 412 | return IRQ_HANDLED; |
| 413 | } |
| 414 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 415 | 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] | 416 | { |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 417 | struct Scsi_Host *sh = cmd->device->host; |
| 418 | struct aha1542_hostdata *aha1542 = shost_priv(sh); |
Ondrej Zary | cb5b570 | 2015-02-06 23:11:27 +0100 | [diff] [blame] | 419 | u8 direction; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 420 | u8 target = cmd->device->id; |
| 421 | u8 lun = cmd->device->lun; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | unsigned long flags; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 423 | int bufflen = scsi_bufflen(cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | int mbo; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 425 | struct mailbox *mb = aha1542->mb; |
| 426 | struct ccb *ccb = aha1542->ccb; |
Ondrej Zary | fde1fb8 | 2015-02-06 23:11:52 +0100 | [diff] [blame^] | 427 | #ifdef DEBUG |
| 428 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | |
Ondrej Zary | fde1fb8 | 2015-02-06 23:11:52 +0100 | [diff] [blame^] | 430 | if (target > 1) { |
| 431 | cmd->result = DID_TIME_OUT << 16; |
| 432 | done(cmd); |
| 433 | return 0; |
| 434 | } |
| 435 | #endif |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 436 | if (*cmd->cmnd == REQUEST_SENSE) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | /* Don't do the command - we have the sense data already */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 438 | cmd->result = 0; |
| 439 | done(cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | return 0; |
| 441 | } |
| 442 | #ifdef DEBUG |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 443 | if (*cmd->cmnd == READ_10 || *cmd->cmnd == WRITE_10) |
| 444 | i = xscsi2int(cmd->cmnd + 2); |
| 445 | else if (*cmd->cmnd == READ_6 || *cmd->cmnd == WRITE_6) |
| 446 | i = scsi2int(cmd->cmnd + 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | else |
| 448 | i = -1; |
| 449 | if (done) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 450 | 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] | 451 | else |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 452 | shost_printk(KERN_DEBUG, sh, "aha1542_command: dev %d cmd %02x pos %d len %d ", target, *cmd->cmnd, i, bufflen); |
| 453 | shost_printk(KERN_DEBUG, sh, "aha1542_queuecommand: dumping scsi cmd:"); |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 454 | for (i = 0; i < cmd->cmd_len; i++) |
| 455 | printk("%02x ", cmd->cmnd[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | printk("\n"); |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 457 | if (*cmd->cmnd == WRITE_10 || *cmd->cmnd == WRITE_6) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | return 0; /* we are still testing, so *don't* write */ |
| 459 | #endif |
| 460 | /* Use the outgoing mailboxes in a round-robin fashion, because this |
| 461 | is how the host adapter will scan for them */ |
| 462 | |
| 463 | spin_lock_irqsave(&aha1542_lock, flags); |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 464 | mbo = aha1542->aha1542_last_mbo_used + 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | if (mbo >= AHA1542_MAILBOXES) |
| 466 | mbo = 0; |
| 467 | |
| 468 | do { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 469 | if (mb[mbo].status == 0 && aha1542->int_cmds[mbo] == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | break; |
| 471 | mbo++; |
| 472 | if (mbo >= AHA1542_MAILBOXES) |
| 473 | mbo = 0; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 474 | } while (mbo != aha1542->aha1542_last_mbo_used); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 476 | if (mb[mbo].status || aha1542->int_cmds[mbo]) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | panic("Unable to find empty mailbox for aha1542.\n"); |
| 478 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 479 | aha1542->int_cmds[mbo] = cmd; /* This will effectively prevent someone else from |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 480 | screwing with this cdb. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 482 | aha1542->aha1542_last_mbo_used = mbo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | spin_unlock_irqrestore(&aha1542_lock, flags); |
| 484 | |
| 485 | #ifdef DEBUG |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 486 | shost_printk(KERN_DEBUG, sh, "Sending command (%d %x)...", mbo, done); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | #endif |
| 488 | |
Ondrej Zary | 10be625 | 2015-02-06 23:11:24 +0100 | [diff] [blame] | 489 | 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] | 490 | |
| 491 | memset(&ccb[mbo], 0, sizeof(struct ccb)); |
| 492 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 493 | ccb[mbo].cdblen = cmd->cmd_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 494 | |
| 495 | direction = 0; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 496 | if (*cmd->cmnd == READ_10 || *cmd->cmnd == READ_6) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | direction = 8; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 498 | else if (*cmd->cmnd == WRITE_10 || *cmd->cmnd == WRITE_6) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | direction = 16; |
| 500 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 501 | memcpy(ccb[mbo].cdb, cmd->cmnd, ccb[mbo].cdblen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | |
Boaz Harrosh | fc3fdfc | 2007-09-09 21:02:45 +0300 | [diff] [blame] | 503 | if (bufflen) { |
Jens Axboe | 51cf224 | 2007-07-16 10:00:31 +0200 | [diff] [blame] | 504 | struct scatterlist *sg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | struct chain *cptr; |
| 506 | #ifdef DEBUG |
| 507 | unsigned char *ptr; |
| 508 | #endif |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 509 | int i, sg_count = scsi_sg_count(cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | ccb[mbo].op = 2; /* SCSI Initiator Command w/scatter-gather */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 511 | cmd->host_scribble = kmalloc(sizeof(*cptr)*sg_count, |
Boaz Harrosh | fc3fdfc | 2007-09-09 21:02:45 +0300 | [diff] [blame] | 512 | GFP_KERNEL | GFP_DMA); |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 513 | cptr = (struct chain *) cmd->host_scribble; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | if (cptr == NULL) { |
| 515 | /* free the claimed mailbox slot */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 516 | aha1542->int_cmds[mbo] = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | return SCSI_MLQUEUE_HOST_BUSY; |
| 518 | } |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 519 | scsi_for_each_sg(cmd, sg, sg_count, i) { |
Ondrej Zary | 10be625 | 2015-02-06 23:11:24 +0100 | [diff] [blame] | 520 | any2scsi(cptr[i].dataptr, isa_page_to_bus(sg_page(sg)) |
| 521 | + sg->offset); |
Jens Axboe | 51cf224 | 2007-07-16 10:00:31 +0200 | [diff] [blame] | 522 | any2scsi(cptr[i].datalen, sg->length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | }; |
Boaz Harrosh | fc3fdfc | 2007-09-09 21:02:45 +0300 | [diff] [blame] | 524 | any2scsi(ccb[mbo].datalen, sg_count * sizeof(struct chain)); |
Ondrej Zary | 10be625 | 2015-02-06 23:11:24 +0100 | [diff] [blame] | 525 | any2scsi(ccb[mbo].dataptr, isa_virt_to_bus(cptr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | #ifdef DEBUG |
| 527 | printk("cptr %x: ", cptr); |
| 528 | ptr = (unsigned char *) cptr; |
| 529 | for (i = 0; i < 18; i++) |
| 530 | printk("%02x ", ptr[i]); |
| 531 | #endif |
| 532 | } else { |
| 533 | ccb[mbo].op = 0; /* SCSI Initiator Command */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 534 | cmd->host_scribble = NULL; |
Boaz Harrosh | fc3fdfc | 2007-09-09 21:02:45 +0300 | [diff] [blame] | 535 | any2scsi(ccb[mbo].datalen, 0); |
| 536 | any2scsi(ccb[mbo].dataptr, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | }; |
| 538 | ccb[mbo].idlun = (target & 7) << 5 | direction | (lun & 7); /*SCSI Target Id */ |
| 539 | ccb[mbo].rsalen = 16; |
| 540 | ccb[mbo].linkptr[0] = ccb[mbo].linkptr[1] = ccb[mbo].linkptr[2] = 0; |
| 541 | ccb[mbo].commlinkid = 0; |
| 542 | |
| 543 | #ifdef DEBUG |
| 544 | { |
| 545 | int i; |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 546 | shost_printk(KERN_DEBUG, sh, "aha1542_command: sending.. "); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | for (i = 0; i < sizeof(ccb[mbo]) - 10; i++) |
Ondrej Zary | cb5b570 | 2015-02-06 23:11:27 +0100 | [diff] [blame] | 548 | printk("%02x ", ((u8 *) &ccb[mbo])[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | }; |
| 550 | #endif |
| 551 | |
| 552 | if (done) { |
Ondrej Zary | fde1fb8 | 2015-02-06 23:11:52 +0100 | [diff] [blame^] | 553 | #ifdef DEBUG |
| 554 | printk("aha1542_queuecommand: now waiting for interrupt "); |
| 555 | #endif |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 556 | cmd->scsi_done = done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | mb[mbo].status = 1; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 558 | aha1542_outb(cmd->device->host->io_port, CMD_START_SCSI); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | } else |
| 560 | printk("aha1542_queuecommand: done can't be NULL\n"); |
| 561 | |
| 562 | return 0; |
| 563 | } |
| 564 | |
Jeff Garzik | f281233 | 2010-11-16 02:10:29 -0500 | [diff] [blame] | 565 | static DEF_SCSI_QCMD(aha1542_queuecommand) |
| 566 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | /* Initialize mailboxes */ |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 568 | static void setup_mailboxes(struct Scsi_Host *sh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | { |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 570 | struct aha1542_hostdata *aha1542 = shost_priv(sh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | int i; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 572 | struct mailbox *mb = aha1542->mb; |
| 573 | struct ccb *ccb = aha1542->ccb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | |
Ondrej Zary | cad2fc7 | 2015-02-06 23:11:43 +0100 | [diff] [blame] | 575 | u8 mb_cmd[5] = { CMD_MBINIT, AHA1542_MAILBOXES, 0, 0, 0}; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | for (i = 0; i < AHA1542_MAILBOXES; i++) { |
| 578 | mb[i].status = mb[AHA1542_MAILBOXES + i].status = 0; |
Ondrej Zary | 10be625 | 2015-02-06 23:11:24 +0100 | [diff] [blame] | 579 | any2scsi(mb[i].ccbptr, isa_virt_to_bus(&ccb[i])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | }; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 581 | 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] | 582 | any2scsi((mb_cmd + 2), isa_virt_to_bus(mb)); |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 583 | if (aha1542_out(sh->io_port, mb_cmd, 5)) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 584 | shost_printk(KERN_ERR, sh, "failed setting up mailboxes\n"); |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 585 | aha1542_intr_reset(sh->io_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | } |
| 587 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 588 | static int aha1542_getconfig(struct Scsi_Host *sh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | { |
Ondrej Zary | cb5b570 | 2015-02-06 23:11:27 +0100 | [diff] [blame] | 590 | u8 inquiry_result[3]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | int i; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 592 | i = inb(STATUS(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | if (i & DF) { |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 594 | i = inb(DATA(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | }; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 596 | aha1542_outb(sh->io_port, CMD_RETCONF); |
| 597 | aha1542_in(sh->io_port, inquiry_result, 3, 0); |
| 598 | if (!wait_mask(INTRFLAGS(sh->io_port), INTRMASK, HACC, 0, 0)) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 599 | shost_printk(KERN_ERR, sh, "error querying board settings\n"); |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 600 | aha1542_intr_reset(sh->io_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | switch (inquiry_result[0]) { |
| 602 | case 0x80: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 603 | sh->dma_channel = 7; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | break; |
| 605 | case 0x40: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 606 | sh->dma_channel = 6; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | break; |
| 608 | case 0x20: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 609 | sh->dma_channel = 5; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 610 | break; |
| 611 | case 0x01: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 612 | sh->dma_channel = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | break; |
| 614 | case 0: |
| 615 | /* This means that the adapter, although Adaptec 1542 compatible, doesn't use a DMA channel. |
| 616 | 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] | 617 | sh->dma_channel = 0xFF; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | break; |
| 619 | default: |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 620 | shost_printk(KERN_ERR, sh, "Unable to determine DMA channel.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | return -1; |
| 622 | }; |
| 623 | switch (inquiry_result[1]) { |
| 624 | case 0x40: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 625 | sh->irq = 15; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | break; |
| 627 | case 0x20: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 628 | sh->irq = 14; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | break; |
| 630 | case 0x8: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 631 | sh->irq = 12; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | break; |
| 633 | case 0x4: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 634 | sh->irq = 11; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | break; |
| 636 | case 0x2: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 637 | sh->irq = 10; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | break; |
| 639 | case 0x1: |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 640 | sh->irq = 9; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 641 | break; |
| 642 | default: |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 643 | shost_printk(KERN_ERR, sh, "Unable to determine IRQ level.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | return -1; |
| 645 | }; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 646 | sh->this_id = inquiry_result[2] & 7; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | return 0; |
| 648 | } |
| 649 | |
| 650 | /* This function should only be called for 1542C boards - we can detect |
| 651 | the special firmware settings and unlock the board */ |
| 652 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 653 | static int aha1542_mbenable(struct Scsi_Host *sh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | { |
Ondrej Zary | cb5b570 | 2015-02-06 23:11:27 +0100 | [diff] [blame] | 655 | static u8 mbenable_cmd[3]; |
| 656 | static u8 mbenable_result[2]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | int retval; |
| 658 | |
| 659 | retval = BIOS_TRANSLATION_6432; |
| 660 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 661 | aha1542_outb(sh->io_port, CMD_EXTBIOS); |
| 662 | if (aha1542_in(sh->io_port, mbenable_result, 2, 100)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 663 | return retval; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 664 | if (!wait_mask(INTRFLAGS(sh->io_port), INTRMASK, HACC, 0, 100)) |
Ondrej Zary | 2093bfa | 2015-02-06 23:11:31 +0100 | [diff] [blame] | 665 | goto fail; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 666 | aha1542_intr_reset(sh->io_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | |
| 668 | if ((mbenable_result[0] & 0x08) || mbenable_result[1]) { |
| 669 | mbenable_cmd[0] = CMD_MBENABLE; |
| 670 | mbenable_cmd[1] = 0; |
| 671 | mbenable_cmd[2] = mbenable_result[1]; |
| 672 | |
| 673 | if ((mbenable_result[0] & 0x08) && (mbenable_result[1] & 0x03)) |
| 674 | retval = BIOS_TRANSLATION_25563; |
| 675 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 676 | if (aha1542_out(sh->io_port, mbenable_cmd, 3)) |
Ondrej Zary | 2093bfa | 2015-02-06 23:11:31 +0100 | [diff] [blame] | 677 | goto fail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | }; |
| 679 | while (0) { |
| 680 | fail: |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 681 | shost_printk(KERN_ERR, sh, "Mailbox init failed\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | } |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 683 | aha1542_intr_reset(sh->io_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | return retval; |
| 685 | } |
| 686 | |
| 687 | /* 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] | 688 | static int aha1542_query(struct Scsi_Host *sh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | { |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 690 | struct aha1542_hostdata *aha1542 = shost_priv(sh); |
Ondrej Zary | cb5b570 | 2015-02-06 23:11:27 +0100 | [diff] [blame] | 691 | u8 inquiry_result[4]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | int i; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 693 | i = inb(STATUS(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | if (i & DF) { |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 695 | i = inb(DATA(sh->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | }; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 697 | aha1542_outb(sh->io_port, CMD_INQUIRY); |
| 698 | aha1542_in(sh->io_port, inquiry_result, 4, 0); |
| 699 | if (!wait_mask(INTRFLAGS(sh->io_port), INTRMASK, HACC, 0, 0)) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 700 | shost_printk(KERN_ERR, sh, "error querying card type\n"); |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 701 | aha1542_intr_reset(sh->io_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 702 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 703 | aha1542->bios_translation = BIOS_TRANSLATION_6432; /* Default case */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 704 | |
| 705 | /* For an AHA1740 series board, we ignore the board since there is a |
| 706 | hardware bug which can lead to wrong blocks being returned if the board |
| 707 | is operating in the 1542 emulation mode. Since there is an extended mode |
| 708 | driver, we simply ignore the board and let the 1740 driver pick it up. |
| 709 | */ |
| 710 | |
| 711 | if (inquiry_result[0] == 0x43) { |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 712 | 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] | 713 | return 1; |
| 714 | }; |
| 715 | |
| 716 | /* Always call this - boards that do not support extended bios translation |
| 717 | will ignore the command, and we will set the proper default */ |
| 718 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 719 | aha1542->bios_translation = aha1542_mbenable(sh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | |
| 721 | return 0; |
| 722 | } |
| 723 | |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 724 | static u8 dma_speed_hw(int dma_speed) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | { |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 726 | switch (dma_speed) { |
| 727 | case 5: |
| 728 | return 0x00; |
| 729 | case 6: |
| 730 | return 0x04; |
| 731 | case 7: |
| 732 | return 0x01; |
| 733 | case 8: |
| 734 | return 0x02; |
| 735 | case 10: |
| 736 | return 0x03; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 739 | return 0xff; /* invalid */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | } |
| 741 | |
Ondrej Zary | b847fd0 | 2015-02-06 23:11:38 +0100 | [diff] [blame] | 742 | /* Set the Bus on/off-times as not to ruin floppy performance */ |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 743 | 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] | 744 | { |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 745 | if (bus_on > 0) { |
| 746 | u8 oncmd[] = { CMD_BUSON_TIME, clamp(bus_on, 2, 15) }; |
Ondrej Zary | b847fd0 | 2015-02-06 23:11:38 +0100 | [diff] [blame] | 747 | |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 748 | aha1542_intr_reset(sh->io_port); |
| 749 | if (aha1542_out(sh->io_port, oncmd, 2)) |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 750 | goto fail; |
Ondrej Zary | b847fd0 | 2015-02-06 23:11:38 +0100 | [diff] [blame] | 751 | } |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 752 | |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 753 | if (bus_off > 0) { |
| 754 | u8 offcmd[] = { CMD_BUSOFF_TIME, clamp(bus_off, 1, 64) }; |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 755 | |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 756 | aha1542_intr_reset(sh->io_port); |
| 757 | if (aha1542_out(sh->io_port, offcmd, 2)) |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 758 | goto fail; |
| 759 | } |
| 760 | |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 761 | if (dma_speed_hw(dma_speed) != 0xff) { |
| 762 | u8 dmacmd[] = { CMD_DMASPEED, dma_speed_hw(dma_speed) }; |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 763 | |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 764 | aha1542_intr_reset(sh->io_port); |
| 765 | if (aha1542_out(sh->io_port, dmacmd, 2)) |
Ondrej Zary | b847fd0 | 2015-02-06 23:11:38 +0100 | [diff] [blame] | 766 | goto fail; |
| 767 | } |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 768 | aha1542_intr_reset(sh->io_port); |
Ondrej Zary | b847fd0 | 2015-02-06 23:11:38 +0100 | [diff] [blame] | 769 | return; |
| 770 | fail: |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 771 | shost_printk(KERN_ERR, sh, "setting bus on/off-time failed\n"); |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 772 | aha1542_intr_reset(sh->io_port); |
Ondrej Zary | b847fd0 | 2015-02-06 23:11:38 +0100 | [diff] [blame] | 773 | } |
| 774 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 775 | /* return non-zero on detection */ |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 776 | 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] | 777 | { |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 778 | unsigned int base_io = io[indx]; |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 779 | struct Scsi_Host *sh; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 780 | struct aha1542_hostdata *aha1542; |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 781 | char dma_info[] = "no DMA"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 782 | |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 783 | if (base_io == 0) |
| 784 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 786 | if (!request_region(base_io, AHA1542_REGION_SIZE, "aha1542")) |
| 787 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 788 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 789 | sh = scsi_host_alloc(tpnt, sizeof(struct aha1542_hostdata)); |
| 790 | if (!sh) |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 791 | goto release; |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 792 | aha1542 = shost_priv(sh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 794 | sh->unique_id = base_io; |
| 795 | sh->io_port = base_io; |
| 796 | sh->n_io_port = AHA1542_REGION_SIZE; |
| 797 | aha1542->aha1542_last_mbi_used = 2 * AHA1542_MAILBOXES - 1; |
| 798 | aha1542->aha1542_last_mbo_used = AHA1542_MAILBOXES - 1; |
| 799 | |
| 800 | if (!aha1542_test_port(sh)) |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 801 | goto unregister; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | |
Ondrej Zary | 37d607b | 2015-02-06 23:11:50 +0100 | [diff] [blame] | 803 | 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] | 804 | if (aha1542_query(sh)) |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 805 | goto unregister; |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 806 | if (aha1542_getconfig(sh) == -1) |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 807 | goto unregister; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 809 | if (sh->dma_channel != 0xFF) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 810 | snprintf(dma_info, sizeof(dma_info), "DMA %d", sh->dma_channel); |
| 811 | shost_printk(KERN_INFO, sh, "Adaptec AHA-1542 (SCSI-ID %d) at IO 0x%x, IRQ %d, %s\n", |
| 812 | sh->this_id, base_io, sh->irq, dma_info); |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 813 | if (aha1542->bios_translation == BIOS_TRANSLATION_25563) |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 814 | shost_printk(KERN_INFO, sh, "Using extended bios translation\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 816 | setup_mailboxes(sh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 817 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 818 | if (request_irq(sh->irq, do_aha1542_intr_handle, 0, |
| 819 | "aha1542", sh)) { |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 820 | shost_printk(KERN_ERR, sh, "Unable to allocate IRQ.\n"); |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 821 | goto unregister; |
| 822 | } |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 823 | if (sh->dma_channel != 0xFF) { |
| 824 | if (request_dma(sh->dma_channel, "aha1542")) { |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 825 | shost_printk(KERN_ERR, sh, "Unable to allocate DMA channel.\n"); |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 826 | goto free_irq; |
| 827 | } |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 828 | if (sh->dma_channel == 0 || sh->dma_channel >= 5) { |
| 829 | set_dma_mode(sh->dma_channel, DMA_MODE_CASCADE); |
| 830 | enable_dma(sh->dma_channel); |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 831 | } |
| 832 | } |
Jeff Garzik | 87c4d7b | 2008-04-24 19:45:32 -0400 | [diff] [blame] | 833 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 834 | if (scsi_add_host(sh, pdev)) |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 835 | goto free_dma; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 836 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 837 | scsi_scan_host(sh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 839 | return sh; |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 840 | free_dma: |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 841 | if (sh->dma_channel != 0xff) |
| 842 | free_dma(sh->dma_channel); |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 843 | free_irq: |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 844 | free_irq(sh->irq, sh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | unregister: |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 846 | scsi_host_put(sh); |
Ondrej Zary | 3a70c00 | 2015-02-06 23:11:40 +0100 | [diff] [blame] | 847 | release: |
| 848 | release_region(base_io, AHA1542_REGION_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 850 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | } |
| 852 | |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 853 | static int aha1542_release(struct Scsi_Host *sh) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | { |
Ondrej Zary | c2532f6 | 2015-02-06 23:11:45 +0100 | [diff] [blame] | 855 | scsi_remove_host(sh); |
| 856 | if (sh->dma_channel != 0xff) |
| 857 | free_dma(sh->dma_channel); |
| 858 | if (sh->irq) |
| 859 | free_irq(sh->irq, sh); |
| 860 | if (sh->io_port && sh->n_io_port) |
| 861 | release_region(sh->io_port, sh->n_io_port); |
| 862 | scsi_host_put(sh); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | return 0; |
| 864 | } |
| 865 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | /* |
| 868 | * This is a device reset. This is handled by sending a special command |
| 869 | * to the device. |
| 870 | */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 871 | static int aha1542_dev_reset(struct scsi_cmnd *cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 872 | { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 873 | struct aha1542_hostdata *aha1542 = shost_priv(cmd->device->host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 874 | unsigned long flags; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 875 | struct mailbox *mb = aha1542->mb; |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 876 | u8 target = cmd->device->id; |
| 877 | u8 lun = cmd->device->lun; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 878 | int mbo; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 879 | struct ccb *ccb = aha1542->ccb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 880 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | spin_lock_irqsave(&aha1542_lock, flags); |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 882 | mbo = aha1542->aha1542_last_mbo_used + 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 883 | if (mbo >= AHA1542_MAILBOXES) |
| 884 | mbo = 0; |
| 885 | |
| 886 | do { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 887 | if (mb[mbo].status == 0 && aha1542->int_cmds[mbo] == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 888 | break; |
| 889 | mbo++; |
| 890 | if (mbo >= AHA1542_MAILBOXES) |
| 891 | mbo = 0; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 892 | } while (mbo != aha1542->aha1542_last_mbo_used); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 893 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 894 | if (mb[mbo].status || aha1542->int_cmds[mbo]) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | panic("Unable to find empty mailbox for aha1542.\n"); |
| 896 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 897 | aha1542->int_cmds[mbo] = cmd; /* This will effectively |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 898 | prevent someone else from |
| 899 | screwing with this cdb. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 901 | aha1542->aha1542_last_mbo_used = mbo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | spin_unlock_irqrestore(&aha1542_lock, flags); |
| 903 | |
Ondrej Zary | 10be625 | 2015-02-06 23:11:24 +0100 | [diff] [blame] | 904 | 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] | 905 | |
| 906 | memset(&ccb[mbo], 0, sizeof(struct ccb)); |
| 907 | |
| 908 | ccb[mbo].op = 0x81; /* BUS DEVICE RESET */ |
| 909 | |
| 910 | ccb[mbo].idlun = (target & 7) << 5 | (lun & 7); /*SCSI Target Id */ |
| 911 | |
| 912 | ccb[mbo].linkptr[0] = ccb[mbo].linkptr[1] = ccb[mbo].linkptr[2] = 0; |
| 913 | ccb[mbo].commlinkid = 0; |
| 914 | |
| 915 | /* |
| 916 | * Now tell the 1542 to flush all pending commands for this |
| 917 | * target |
| 918 | */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 919 | aha1542_outb(cmd->device->host->io_port, CMD_START_SCSI); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 920 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 921 | scmd_printk(KERN_WARNING, cmd, |
Jeff Garzik | 017560f | 2005-10-24 18:04:36 -0400 | [diff] [blame] | 922 | "Trying device reset for target\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | |
| 924 | return SUCCESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 925 | } |
| 926 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 927 | static int aha1542_reset(struct scsi_cmnd *cmd, u8 reset_cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 929 | struct aha1542_hostdata *aha1542 = shost_priv(cmd->device->host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 930 | int i; |
| 931 | |
| 932 | /* |
| 933 | * This does a scsi reset for all devices on the bus. |
| 934 | * In principle, we could also reset the 1542 - should |
| 935 | * we do this? Try this first, and we can add that later |
| 936 | * if it turns out to be useful. |
| 937 | */ |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 938 | outb(reset_cmd, CONTROL(cmd->device->host->io_port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 939 | |
| 940 | /* |
| 941 | * Wait for the thing to settle down a bit. Unfortunately |
| 942 | * this is going to basically lock up the machine while we |
| 943 | * wait for this to complete. To be 100% correct, we need to |
| 944 | * check for timeout, and if we are doing something like this |
| 945 | * we are pretty desperate anyways. |
| 946 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 947 | ssleep(4); |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 948 | spin_lock_irq(cmd->device->host->host_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 949 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 950 | if (!wait_mask(STATUS(cmd->device->host->io_port), |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 951 | STATMASK, INIT | IDLE, STST | DIAGF | INVDCMD | DF | CDF, 0)) { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 952 | spin_unlock_irq(cmd->device->host->host_lock); |
Ondrej Zary | a13b372 | 2015-02-06 23:11:34 +0100 | [diff] [blame] | 953 | return FAILED; |
| 954 | } |
Ondrej Zary | 8537cba | 2015-02-06 23:11:37 +0100 | [diff] [blame] | 955 | /* |
| 956 | * We need to do this too before the 1542 can interact with |
| 957 | * us again after host reset. |
| 958 | */ |
| 959 | if (reset_cmd & HRST) |
Ondrej Zary | 68ea9de | 2015-02-06 23:11:49 +0100 | [diff] [blame] | 960 | setup_mailboxes(cmd->device->host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 961 | /* |
| 962 | * Now try to pick up the pieces. For all pending commands, |
| 963 | * free any internal data structures, and basically clear things |
| 964 | * out. We do not try and restart any commands or anything - |
| 965 | * the strategy handler takes care of that crap. |
| 966 | */ |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 967 | 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] | 968 | |
| 969 | for (i = 0; i < AHA1542_MAILBOXES; i++) { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 970 | if (aha1542->int_cmds[i] != NULL) { |
| 971 | struct scsi_cmnd *tmp_cmd; |
| 972 | tmp_cmd = aha1542->int_cmds[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 973 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 974 | if (tmp_cmd->device->soft_reset) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 975 | /* |
| 976 | * If this device implements the soft reset option, |
| 977 | * then it is still holding onto the command, and |
| 978 | * may yet complete it. In this case, we don't |
| 979 | * flush the data. |
| 980 | */ |
| 981 | continue; |
| 982 | } |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 983 | kfree(tmp_cmd->host_scribble); |
| 984 | tmp_cmd->host_scribble = NULL; |
| 985 | aha1542->int_cmds[i] = NULL; |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 986 | aha1542->mb[i].status = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 987 | } |
| 988 | } |
| 989 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 990 | spin_unlock_irq(cmd->device->host->host_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 991 | return SUCCESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | } |
| 993 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 994 | static int aha1542_bus_reset(struct scsi_cmnd *cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 995 | { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 996 | return aha1542_reset(cmd, SCRST); |
Ondrej Zary | 8537cba | 2015-02-06 23:11:37 +0100 | [diff] [blame] | 997 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 998 | |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 999 | static int aha1542_host_reset(struct scsi_cmnd *cmd) |
Ondrej Zary | 8537cba | 2015-02-06 23:11:37 +0100 | [diff] [blame] | 1000 | { |
Ondrej Zary | 55b28f9 | 2015-02-06 23:11:44 +0100 | [diff] [blame] | 1001 | return aha1542_reset(cmd, HRST | SCRST); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1002 | } |
| 1003 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1004 | static int aha1542_biosparam(struct scsi_device *sdev, |
Ondrej Zary | 17787a0 | 2015-02-06 23:11:42 +0100 | [diff] [blame] | 1005 | struct block_device *bdev, sector_t capacity, int geom[]) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1006 | { |
Ondrej Zary | e98878f | 2015-02-06 23:11:25 +0100 | [diff] [blame] | 1007 | struct aha1542_hostdata *aha1542 = shost_priv(sdev->host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | |
Ondrej Zary | 17787a0 | 2015-02-06 23:11:42 +0100 | [diff] [blame] | 1009 | if (capacity >= 0x200000 && |
| 1010 | aha1542->bios_translation == BIOS_TRANSLATION_25563) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1011 | /* Please verify that this is the same as what DOS returns */ |
Ondrej Zary | 17787a0 | 2015-02-06 23:11:42 +0100 | [diff] [blame] | 1012 | geom[0] = 255; /* heads */ |
| 1013 | geom[1] = 63; /* sectors */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1014 | } else { |
Ondrej Zary | 17787a0 | 2015-02-06 23:11:42 +0100 | [diff] [blame] | 1015 | geom[0] = 64; /* heads */ |
| 1016 | geom[1] = 32; /* sectors */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1017 | } |
Ondrej Zary | 17787a0 | 2015-02-06 23:11:42 +0100 | [diff] [blame] | 1018 | geom[2] = sector_div(capacity, geom[0] * geom[1]); /* cylinders */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1019 | |
| 1020 | return 0; |
| 1021 | } |
| 1022 | MODULE_LICENSE("GPL"); |
| 1023 | |
Christoph Hellwig | d0be4a7d | 2005-10-31 18:31:40 +0100 | [diff] [blame] | 1024 | static struct scsi_host_template driver_template = { |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 1025 | .module = THIS_MODULE, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1026 | .proc_name = "aha1542", |
| 1027 | .name = "Adaptec 1542", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | .queuecommand = aha1542_queuecommand, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1029 | .eh_device_reset_handler= aha1542_dev_reset, |
| 1030 | .eh_bus_reset_handler = aha1542_bus_reset, |
| 1031 | .eh_host_reset_handler = aha1542_host_reset, |
| 1032 | .bios_param = aha1542_biosparam, |
| 1033 | .can_queue = AHA1542_MAILBOXES, |
| 1034 | .this_id = 7, |
Ondrej Zary | 10be625 | 2015-02-06 23:11:24 +0100 | [diff] [blame] | 1035 | .sg_tablesize = 16, |
| 1036 | .cmd_per_lun = 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1037 | .unchecked_isa_dma = 1, |
| 1038 | .use_clustering = ENABLE_CLUSTERING, |
| 1039 | }; |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 1040 | |
| 1041 | static int aha1542_isa_match(struct device *pdev, unsigned int ndev) |
| 1042 | { |
| 1043 | struct Scsi_Host *sh = aha1542_hw_init(&driver_template, pdev, ndev); |
| 1044 | |
| 1045 | if (!sh) |
| 1046 | return 0; |
| 1047 | |
| 1048 | dev_set_drvdata(pdev, sh); |
| 1049 | return 1; |
| 1050 | } |
| 1051 | |
| 1052 | static int aha1542_isa_remove(struct device *pdev, |
| 1053 | unsigned int ndev) |
| 1054 | { |
| 1055 | aha1542_release(dev_get_drvdata(pdev)); |
| 1056 | dev_set_drvdata(pdev, NULL); |
| 1057 | return 0; |
| 1058 | } |
| 1059 | |
| 1060 | static struct isa_driver aha1542_isa_driver = { |
| 1061 | .match = aha1542_isa_match, |
| 1062 | .remove = aha1542_isa_remove, |
| 1063 | .driver = { |
| 1064 | .name = "aha1542" |
| 1065 | }, |
| 1066 | }; |
| 1067 | static int isa_registered; |
| 1068 | |
| 1069 | #ifdef CONFIG_PNP |
| 1070 | static struct pnp_device_id aha1542_pnp_ids[] = { |
| 1071 | { .id = "ADP1542" }, |
| 1072 | { .id = "" } |
| 1073 | }; |
| 1074 | MODULE_DEVICE_TABLE(pnp, aha1542_pnp_ids); |
| 1075 | |
| 1076 | static int aha1542_pnp_probe(struct pnp_dev *pdev, const struct pnp_device_id *id) |
| 1077 | { |
| 1078 | int indx; |
| 1079 | struct Scsi_Host *sh; |
| 1080 | |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 1081 | for (indx = 0; indx < ARRAY_SIZE(io); indx++) { |
| 1082 | if (io[indx]) |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 1083 | continue; |
| 1084 | |
| 1085 | if (pnp_activate_dev(pdev) < 0) |
| 1086 | continue; |
| 1087 | |
Ondrej Zary | f71429a | 2015-02-06 23:11:41 +0100 | [diff] [blame] | 1088 | io[indx] = pnp_port_start(pdev, 0); |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 1089 | |
| 1090 | /* The card can be queried for its DMA, we have |
| 1091 | the DMA set up that is enough */ |
| 1092 | |
Ondrej Zary | 2906b3c | 2015-02-06 23:11:51 +0100 | [diff] [blame] | 1093 | 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] | 1094 | } |
| 1095 | |
| 1096 | sh = aha1542_hw_init(&driver_template, &pdev->dev, indx); |
| 1097 | if (!sh) |
| 1098 | return -ENODEV; |
| 1099 | |
| 1100 | pnp_set_drvdata(pdev, sh); |
| 1101 | return 0; |
| 1102 | } |
| 1103 | |
| 1104 | static void aha1542_pnp_remove(struct pnp_dev *pdev) |
| 1105 | { |
| 1106 | aha1542_release(pnp_get_drvdata(pdev)); |
| 1107 | pnp_set_drvdata(pdev, NULL); |
| 1108 | } |
| 1109 | |
| 1110 | static struct pnp_driver aha1542_pnp_driver = { |
| 1111 | .name = "aha1542", |
| 1112 | .id_table = aha1542_pnp_ids, |
| 1113 | .probe = aha1542_pnp_probe, |
| 1114 | .remove = aha1542_pnp_remove, |
| 1115 | }; |
| 1116 | static int pnp_registered; |
| 1117 | #endif /* CONFIG_PNP */ |
| 1118 | |
| 1119 | static int __init aha1542_init(void) |
| 1120 | { |
| 1121 | int ret = 0; |
Ondrej Zary | 643a7c4 | 2015-02-06 23:11:22 +0100 | [diff] [blame] | 1122 | |
| 1123 | #ifdef CONFIG_PNP |
| 1124 | if (isapnp) { |
| 1125 | ret = pnp_register_driver(&aha1542_pnp_driver); |
| 1126 | if (!ret) |
| 1127 | pnp_registered = 1; |
| 1128 | } |
| 1129 | #endif |
| 1130 | ret = isa_register_driver(&aha1542_isa_driver, MAXBOARDS); |
| 1131 | if (!ret) |
| 1132 | isa_registered = 1; |
| 1133 | |
| 1134 | #ifdef CONFIG_PNP |
| 1135 | if (pnp_registered) |
| 1136 | ret = 0; |
| 1137 | #endif |
| 1138 | if (isa_registered) |
| 1139 | ret = 0; |
| 1140 | |
| 1141 | return ret; |
| 1142 | } |
| 1143 | |
| 1144 | static void __exit aha1542_exit(void) |
| 1145 | { |
| 1146 | #ifdef CONFIG_PNP |
| 1147 | if (pnp_registered) |
| 1148 | pnp_unregister_driver(&aha1542_pnp_driver); |
| 1149 | #endif |
| 1150 | if (isa_registered) |
| 1151 | isa_unregister_driver(&aha1542_isa_driver); |
| 1152 | } |
| 1153 | |
| 1154 | module_init(aha1542_init); |
| 1155 | module_exit(aha1542_exit); |