1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* to be used by qlogicfas and qlogic_cs */ |
3 | #ifndef __QLOGICFAS408_H |
4 | #define __QLOGICFAS408_H |
5 | |
6 | /*----------------------------------------------------------------*/ |
7 | /* Configuration */ |
8 | |
9 | /* Set the following to max out the speed of the PIO PseudoDMA transfers, |
10 | again, 0 tends to be slower, but more stable. */ |
11 | |
12 | #define QL_TURBO_PDMA 1 |
13 | |
14 | /* This should be 1 to enable parity detection */ |
15 | |
16 | #define QL_ENABLE_PARITY 1 |
17 | |
18 | /* This will reset all devices when the driver is initialized (during bootup). |
19 | The other linux drivers don't do this, but the DOS drivers do, and after |
20 | using DOS or some kind of crash or lockup this will bring things back |
21 | without requiring a cold boot. It does take some time to recover from a |
22 | reset, so it is slower, and I have seen timeouts so that devices weren't |
23 | recognized when this was set. */ |
24 | |
25 | #define QL_RESET_AT_START 0 |
26 | |
27 | /* crystal frequency in megahertz (for offset 5 and 9) |
28 | Please set this for your card. Most Qlogic cards are 40 Mhz. The |
29 | Control Concepts ISA (not VLB) is 24 Mhz */ |
30 | |
31 | #define XTALFREQ 40 |
32 | |
33 | /**********/ |
34 | /* DANGER! modify these at your own risk */ |
35 | /* SLOWCABLE can usually be reset to zero if you have a clean setup and |
36 | proper termination. The rest are for synchronous transfers and other |
37 | advanced features if your device can transfer faster than 5Mb/sec. |
38 | If you are really curious, email me for a quick howto until I have |
39 | something official */ |
40 | /**********/ |
41 | |
42 | /*****/ |
43 | /* config register 1 (offset 8) options */ |
44 | /* This needs to be set to 1 if your cabling is long or noisy */ |
45 | #define SLOWCABLE 1 |
46 | |
47 | /*****/ |
48 | /* offset 0xc */ |
49 | /* This will set fast (10Mhz) synchronous timing when set to 1 |
50 | For this to have an effect, FASTCLK must also be 1 */ |
51 | #define FASTSCSI 0 |
52 | |
53 | /* This when set to 1 will set a faster sync transfer rate */ |
54 | #define FASTCLK 0 /*(XTALFREQ>25?1:0)*/ |
55 | |
56 | /*****/ |
57 | /* offset 6 */ |
58 | /* This is the sync transfer divisor, XTALFREQ/X will be the maximum |
59 | achievable data rate (assuming the rest of the system is capable |
60 | and set properly) */ |
61 | #define SYNCXFRPD 5 /*(XTALFREQ/5)*/ |
62 | |
63 | /*****/ |
64 | /* offset 7 */ |
65 | /* This is the count of how many synchronous transfers can take place |
66 | i.e. how many reqs can occur before an ack is given. |
67 | The maximum value for this is 15, the upper bits can modify |
68 | REQ/ACK assertion and deassertion during synchronous transfers |
69 | If this is 0, the bus will only transfer asynchronously */ |
70 | #define SYNCOFFST 0 |
71 | /* for the curious, bits 7&6 control the deassertion delay in 1/2 cycles |
72 | of the 40Mhz clock. If FASTCLK is 1, specifying 01 (1/2) will |
73 | cause the deassertion to be early by 1/2 clock. Bits 5&4 control |
74 | the assertion delay, also in 1/2 clocks (FASTCLK is ignored here). */ |
75 | |
76 | /*----------------------------------------------------------------*/ |
77 | |
78 | struct qlogicfas408_priv { |
79 | int qbase; /* Port */ |
80 | int qinitid; /* initiator ID */ |
81 | int qabort; /* Flag to cause an abort */ |
82 | int qlirq; /* IRQ being used */ |
83 | int int_type; /* type of irq, 2 for ISA board, 0 for PCMCIA */ |
84 | char qinfo[80]; /* description */ |
85 | struct scsi_cmnd *qlcmd; /* current command being processed */ |
86 | struct Scsi_Host *shost; /* pointer back to host */ |
87 | struct qlogicfas408_priv *next; /* next private struct */ |
88 | }; |
89 | |
90 | /* The qlogic card uses two register maps - These macros select which one */ |
91 | #define REG0 ( outb( inb( qbase + 0xd ) & 0x7f , qbase + 0xd ), outb( 4 , qbase + 0xd )) |
92 | #define REG1 ( outb( inb( qbase + 0xd ) | 0x80 , qbase + 0xd ), outb( 0xb4 | int_type, qbase + 0xd )) |
93 | |
94 | /* following is watchdog timeout in microseconds */ |
95 | #define WATCHDOG 5000000 |
96 | |
97 | /*----------------------------------------------------------------*/ |
98 | /* the following will set the monitor border color (useful to find |
99 | where something crashed or gets stuck at and as a simple profiler) */ |
100 | |
101 | #define rtrc(i) {} |
102 | |
103 | #define get_priv_by_cmd(x) (struct qlogicfas408_priv *)&((x)->device->host->hostdata[0]) |
104 | #define get_priv_by_host(x) (struct qlogicfas408_priv *)&((x)->hostdata[0]) |
105 | |
106 | irqreturn_t qlogicfas408_ihandl(int irq, void *dev_id); |
107 | int qlogicfas408_queuecommand(struct Scsi_Host *h, struct scsi_cmnd * cmd); |
108 | int qlogicfas408_biosparam(struct scsi_device * disk, |
109 | struct block_device *dev, |
110 | sector_t capacity, int ip[]); |
111 | int qlogicfas408_abort(struct scsi_cmnd * cmd); |
112 | extern int qlogicfas408_host_reset(struct scsi_cmnd *cmd); |
113 | const char *qlogicfas408_info(struct Scsi_Host *host); |
114 | int qlogicfas408_get_chip_type(int qbase, int int_type); |
115 | void qlogicfas408_setup(int qbase, int id, int int_type); |
116 | int qlogicfas408_detect(int qbase, int int_type); |
117 | void qlogicfas408_disable_ints(struct qlogicfas408_priv *priv); |
118 | #endif /* __QLOGICFAS408_H */ |
119 | |
120 | |