aha1542: rework configuration parameters
Remove __setup and introduce separate io, bus_on, bus_off and dma_speed module parameters. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
This commit is contained in:
Ondrej Zary
James Bottomley
parent
3a70c006ed
commit
f71429ab53
@ -53,56 +53,30 @@
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#else
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#define DEB(x)
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#endif
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#define MAXBOARDS 4
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/*
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static const char RCSid[] = "$Header: /usr/src/linux/kernel/blk_drv/scsi/RCS/aha1542.c,v 1.1 1992/07/24 06:27:38 root Exp root $";
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*/
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/* The adaptec can be configured for quite a number of addresses, but
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I generally do not want the card poking around at random. We allow
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two addresses - this allows people to use the Adaptec with a Midi
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card, which also used 0x330 -- can be overridden with LILO! */
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#define MAXBOARDS 4 /* Increase this and the sizes of the
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arrays below, if you need more.. */
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/* Boards 3,4 slots are reserved for ISAPnP scans */
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static unsigned int bases[MAXBOARDS] = {0x330, 0x334, 0, 0};
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/* set by aha1542_setup according to the command line; they also may
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be marked __initdata, but require zero initializers then */
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static int setup_called[MAXBOARDS];
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static int setup_buson[MAXBOARDS];
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static int setup_busoff[MAXBOARDS];
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static int setup_dmaspeed[MAXBOARDS] = { -1, -1, -1, -1 };
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/*
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* LILO/Module params: aha1542=<PORTBASE>[,<BUSON>,<BUSOFF>[,<DMASPEED>]]
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*
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* Where: <PORTBASE> is any of the valid AHA addresses:
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* 0x130, 0x134, 0x230, 0x234, 0x330, 0x334
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* <BUSON> is the time (in microsecs) that AHA spends on the AT-bus
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* when transferring data. 1542A power-on default is 11us,
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* valid values are in range: 2..15 (decimal)
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* <BUSOFF> is the time that AHA spends OFF THE BUS after while
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* it is transferring data (not to monopolize the bus).
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* Power-on default is 4us, valid range: 1..64 microseconds.
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* <DMASPEED> Default is jumper selected (1542A: on the J1),
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* but experimenter can alter it with this.
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* Valid values: 5, 6, 7, 8, 10 (MB/s)
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* Factory default is 5 MB/s.
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*/
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#if defined(MODULE)
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static bool isapnp = 0;
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static int aha1542[] = {0x330, 11, 4, -1};
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module_param_array(aha1542, int, NULL, 0);
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static bool isapnp = 1;
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module_param(isapnp, bool, 0);
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#else
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static int isapnp = 1;
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#endif
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MODULE_PARM_DESC(isapnp, "enable PnP support (default=1)");
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static int io[MAXBOARDS] = { 0x330, 0x334, 0, 0 };
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module_param_array(io, int, NULL, 0);
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MODULE_PARM_DESC(io, "base IO address of controller (0x130,0x134,0x230,0x234,0x330,0x334, default=0x330,0x334)");
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/* time AHA spends on the AT-bus during data transfer */
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static int bus_on[MAXBOARDS] = { -1, -1, -1, -1 }; /* power-on default: 11us */
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module_param_array(bus_on, int, NULL, 0);
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MODULE_PARM_DESC(bus_on, "bus on time [us] (2-15, default=-1 [HW default: 11])");
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/* time AHA spends off the bus (not to monopolize it) during data transfer */
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static int bus_off[MAXBOARDS] = { -1, -1, -1, -1 }; /* power-on default: 4us */
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module_param_array(bus_off, int, NULL, 0);
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MODULE_PARM_DESC(bus_off, "bus off time [us] (1-64, default=-1 [HW default: 4])");
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/* default is jumper selected (J1 on 1542A), factory default = 5 MB/s */
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static int dma_speed[MAXBOARDS] = { -1, -1, -1, -1 };
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module_param_array(dma_speed, int, NULL, 0);
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MODULE_PARM_DESC(dma_speed, "DMA speed [MB/s] (5,6,7,8,10, default=-1 [by jumper])");
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#define BIOS_TRANSLATION_1632 0 /* Used by some old 1542A boards */
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#define BIOS_TRANSLATION_6432 1 /* Default case these days */
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@ -792,101 +766,48 @@ static int aha1542_query(int base_io, int *transl)
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return 0;
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}
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#ifndef MODULE
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static char *setup_str[MAXBOARDS] __initdata;
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static int setup_idx = 0;
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static void __init aha1542_setup(char *str, int *ints)
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static u8 dma_speed_hw(int dma_speed)
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{
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const char *ahausage = "aha1542: usage: aha1542=<PORTBASE>[,<BUSON>,<BUSOFF>[,<DMASPEED>]]\n";
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int setup_portbase;
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if (setup_idx >= MAXBOARDS) {
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printk(KERN_ERR "aha1542: aha1542_setup called too many times! Bad LILO params ?\n");
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printk(KERN_ERR " Entryline 1: %s\n", setup_str[0]);
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printk(KERN_ERR " Entryline 2: %s\n", setup_str[1]);
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printk(KERN_ERR " This line: %s\n", str);
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return;
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switch (dma_speed) {
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case 5:
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return 0x00;
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case 6:
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return 0x04;
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case 7:
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return 0x01;
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case 8:
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return 0x02;
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case 10:
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return 0x03;
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}
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if (ints[0] < 1 || ints[0] > 4) {
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printk(KERN_ERR "aha1542: %s\n", str);
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printk(ahausage);
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printk(KERN_ERR "aha1542: Wrong parameters may cause system malfunction.. We try anyway..\n");
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}
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setup_called[setup_idx] = ints[0];
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setup_str[setup_idx] = str;
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setup_portbase = ints[0] >= 1 ? ints[1] : 0; /* Preserve the default value.. */
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setup_buson[setup_idx] = ints[0] >= 2 ? ints[2] : 7;
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setup_busoff[setup_idx] = ints[0] >= 3 ? ints[3] : 5;
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if (ints[0] >= 4)
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{
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int atbt = -1;
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switch (ints[4]) {
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case 5:
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atbt = 0x00;
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break;
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case 6:
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atbt = 0x04;
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break;
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case 7:
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atbt = 0x01;
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break;
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case 8:
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atbt = 0x02;
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break;
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case 10:
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atbt = 0x03;
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break;
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default:
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printk(KERN_ERR "aha1542: %s\n", str);
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printk(ahausage);
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printk(KERN_ERR "aha1542: Valid values for DMASPEED are 5-8, 10 MB/s. Using jumper defaults.\n");
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break;
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}
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setup_dmaspeed[setup_idx] = atbt;
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}
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if (setup_portbase != 0)
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bases[setup_idx] = setup_portbase;
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++setup_idx;
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return 0xff; /* invalid */
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}
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static int __init do_setup(char *str)
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{
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int ints[5];
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int count=setup_idx;
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get_options(str, ARRAY_SIZE(ints), ints);
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aha1542_setup(str,ints);
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return count<setup_idx;
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}
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__setup("aha1542=",do_setup);
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#endif
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/* Set the Bus on/off-times as not to ruin floppy performance */
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static void aha1542_set_bus_times(int indx)
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{
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unsigned int base_io = bases[indx];
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u8 oncmd[] = {CMD_BUSON_TIME, 7};
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u8 offcmd[] = {CMD_BUSOFF_TIME, 5};
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unsigned int base_io = io[indx];
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if (setup_called[indx]) {
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oncmd[1] = setup_buson[indx];
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offcmd[1] = setup_busoff[indx];
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if (bus_on[indx] > 0) {
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u8 oncmd[] = { CMD_BUSON_TIME, clamp(bus_on[indx], 2, 15) };
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aha1542_intr_reset(base_io);
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if (aha1542_out(base_io, oncmd, 2))
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goto fail;
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}
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aha1542_intr_reset(base_io);
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if (aha1542_out(base_io, oncmd, 2))
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goto fail;
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aha1542_intr_reset(base_io);
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if (aha1542_out(base_io, offcmd, 2))
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goto fail;
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if (setup_dmaspeed[indx] >= 0) {
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u8 dmacmd[] = {CMD_DMASPEED, 0};
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dmacmd[1] = setup_dmaspeed[indx];
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if (bus_off[indx] > 0) {
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u8 offcmd[] = { CMD_BUSOFF_TIME, clamp(bus_off[indx], 1, 64) };
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aha1542_intr_reset(base_io);
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if (aha1542_out(base_io, offcmd, 2))
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goto fail;
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}
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if (dma_speed_hw(dma_speed[indx]) != 0xff) {
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u8 dmacmd[] = { CMD_DMASPEED, dma_speed_hw(dma_speed[indx]) };
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aha1542_intr_reset(base_io);
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if (aha1542_out(base_io, dmacmd, 2))
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goto fail;
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@ -901,7 +822,7 @@ fail:
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/* return non-zero on detection */
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static struct Scsi_Host *aha1542_hw_init(struct scsi_host_template *tpnt, struct device *pdev, int indx)
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{
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unsigned int base_io = bases[indx];
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unsigned int base_io = io[indx];
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struct Scsi_Host *shpnt;
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struct aha1542_hostdata *aha1542;
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@ -1207,19 +1128,19 @@ static int aha1542_pnp_probe(struct pnp_dev *pdev, const struct pnp_device_id *i
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int indx;
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struct Scsi_Host *sh;
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for (indx = 0; indx < ARRAY_SIZE(bases); indx++) {
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if (bases[indx])
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for (indx = 0; indx < ARRAY_SIZE(io); indx++) {
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if (io[indx])
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continue;
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if (pnp_activate_dev(pdev) < 0)
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continue;
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bases[indx] = pnp_port_start(pdev, 0);
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io[indx] = pnp_port_start(pdev, 0);
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/* The card can be queried for its DMA, we have
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the DMA set up that is enough */
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printk(KERN_INFO "ISAPnP found an AHA1535 at I/O 0x%03X\n", bases[indx]);
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printk(KERN_INFO "ISAPnP found an AHA1535 at I/O 0x%03X\n", io[indx]);
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}
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sh = aha1542_hw_init(&driver_template, &pdev->dev, indx);
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@ -1248,32 +1169,6 @@ static int pnp_registered;
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static int __init aha1542_init(void)
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{
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int ret = 0;
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#ifdef MODULE
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int atbt = -1;
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bases[0] = aha1542[0];
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setup_buson[0] = aha1542[1];
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setup_busoff[0] = aha1542[2];
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switch (aha1542[3]) {
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case 5:
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atbt = 0x00;
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break;
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case 6:
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atbt = 0x04;
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break;
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case 7:
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atbt = 0x01;
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break;
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case 8:
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atbt = 0x02;
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break;
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case 10:
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atbt = 0x03;
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break;
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};
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setup_dmaspeed[0] = atbt;
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#endif
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#ifdef CONFIG_PNP
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if (isapnp) {
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