iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

aha1542: rework configuration parameters

Browse Source 
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 2015-02-06 23:11:41 +01:00 committed by James Bottomley
parent 3a70c006ed
commit f71429ab53
1 changed files with 59 additions and 164 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

223
drivers/scsi/aha1542.c
View File

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