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authorFinn Thain <fthain@telegraphics.com.au>2014-11-12 16:12:05 +1100
committerChristoph Hellwig <hch@lst.de>2014-11-20 09:11:12 +0100
commit6e9ae6d560e1a60113ef2a4d27eeb4931048b674 (patch)
tree5e34d6150c88f595ebca7869bdf13c84872a38e7 /drivers/scsi/mac_scsi.c
parent92de383154e98bc0b9c4b3364af3945076f77032 (diff)
downloadlinux-linaro-stable-6e9ae6d560e1a60113ef2a4d27eeb4931048b674.tar.gz
mac_scsi: Add module option to Kconfig
Allow mac_scsi to be built as a module. Replace the old validation of __setup options with code that validates both module and __setup options. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/mac_scsi.c')
-rw-r--r--drivers/scsi/mac_scsi.c112
1 files changed, 37 insertions, 75 deletions
diff --git a/drivers/scsi/mac_scsi.c b/drivers/scsi/mac_scsi.c
index 2b604a85f7c1..3b93f000499a 100644
--- a/drivers/scsi/mac_scsi.c
+++ b/drivers/scsi/mac_scsi.c
@@ -62,15 +62,18 @@
static void mac_scsi_reset_boot(struct Scsi_Host *instance);
#endif
-static int setup_called = 0;
static int setup_can_queue = -1;
+module_param(setup_can_queue, int, 0);
static int setup_cmd_per_lun = -1;
+module_param(setup_cmd_per_lun, int, 0);
static int setup_sg_tablesize = -1;
+module_param(setup_sg_tablesize, int, 0);
static int setup_use_pdma = -1;
-#ifdef SUPPORT_TAGS
+module_param(setup_use_pdma, int, 0);
static int setup_use_tagged_queuing = -1;
-#endif
+module_param(setup_use_tagged_queuing, int, 0);
static int setup_hostid = -1;
+module_param(setup_hostid, int, 0);
/* Time (in jiffies) to wait after a reset; the SCSI standard calls for 250ms,
* we usually do 0.5s to be on the safe side. But Toshiba CD-ROMs once more
@@ -102,72 +105,34 @@ static __inline__ void macscsi_write(struct Scsi_Host *instance, int reg, int va
out_8(instance->io_port + (reg<<4), value);
}
-/*
- * Function : mac_scsi_setup(char *str)
- *
- * Purpose : booter command line initialization of the overrides array,
- *
- * Inputs : str - comma delimited list of options
- *
- */
-
-static int __init mac_scsi_setup(char *str) {
+#ifndef MODULE
+static int __init mac_scsi_setup(char *str)
+{
int ints[7];
-
- (void)get_options( str, ARRAY_SIZE(ints), ints);
-
- if (setup_called++ || ints[0] < 1 || ints[0] > 6) {
- printk(KERN_WARNING "scsi: <mac5380>"
- " Usage: mac5380=<can_queue>[,<cmd_per_lun>,<sg_tablesize>,<hostid>,<use_tags>,<use_pdma>]\n");
- printk(KERN_ALERT "scsi: <mac5380> Bad Penguin parameters?\n");
- return 0;
- }
-
- if (ints[0] >= 1) {
- if (ints[1] > 0)
- /* no limits on this, just > 0 */
- setup_can_queue = ints[1];
- }
- if (ints[0] >= 2) {
- if (ints[2] > 0)
- setup_cmd_per_lun = ints[2];
- }
- if (ints[0] >= 3) {
- if (ints[3] >= 0) {
- setup_sg_tablesize = ints[3];
- /* Must be <= SG_ALL (255) */
- if (setup_sg_tablesize > SG_ALL)
- setup_sg_tablesize = SG_ALL;
- }
- }
- if (ints[0] >= 4) {
- /* Must be between 0 and 7 */
- if (ints[4] >= 0 && ints[4] <= 7)
- setup_hostid = ints[4];
- else if (ints[4] > 7)
- printk(KERN_WARNING "mac_scsi_setup: invalid host ID %d !\n", ints[4] );
- }
-#ifdef SUPPORT_TAGS
- if (ints[0] >= 5) {
- if (ints[5] >= 0)
- setup_use_tagged_queuing = !!ints[5];
+
+ (void)get_options(str, ARRAY_SIZE(ints), ints);
+
+ if (ints[0] < 1 || ints[0] > 6) {
+ pr_err("Usage: mac5380=<can_queue>[,<cmd_per_lun>[,<sg_tablesize>[,<hostid>[,<use_tags>[,<use_pdma>]]]]]\n");
+ return 0;
}
-
- if (ints[0] == 6) {
- if (ints[6] >= 0)
+ if (ints[0] >= 1)
+ setup_can_queue = ints[1];
+ if (ints[0] >= 2)
+ setup_cmd_per_lun = ints[2];
+ if (ints[0] >= 3)
+ setup_sg_tablesize = ints[3];
+ if (ints[0] >= 4)
+ setup_hostid = ints[4];
+ if (ints[0] >= 5)
+ setup_use_tagged_queuing = ints[5];
+ if (ints[0] >= 6)
setup_use_pdma = ints[6];
- }
-#else
- if (ints[0] == 5) {
- if (ints[5] >= 0)
- setup_use_pdma = ints[5];
- }
-#endif /* SUPPORT_TAGS */
-
return 1;
}
__setup("mac5380=", mac_scsi_setup);
+#endif /* !MODULE */
/*
* Function : int macscsi_detect(struct scsi_host_template * tpnt)
@@ -199,13 +164,8 @@ int __init macscsi_detect(struct scsi_host_template * tpnt)
tpnt->cmd_per_lun = setup_cmd_per_lun;
if (setup_sg_tablesize >= 0)
tpnt->sg_tablesize = setup_sg_tablesize;
-
- if (setup_hostid >= 0)
- tpnt->this_id = setup_hostid;
- else {
- /* use 7 as default */
- tpnt->this_id = 7;
- }
+ if (setup_hostid >= 0)
+ tpnt->this_id = setup_hostid & 7;
#ifdef SUPPORT_TAGS
if (setup_use_tagged_queuing < 0)
@@ -219,15 +179,15 @@ int __init macscsi_detect(struct scsi_host_template * tpnt)
return 0;
if (macintosh_config->ident == MAC_MODEL_IIFX) {
- mac_scsi_regp = via1+0x8000;
- mac_scsi_drq = via1+0xE000;
- mac_scsi_nodrq = via1+0xC000;
+ mac_scsi_regp = (unsigned char *) VIA1_BASE + 0x8000;
+ mac_scsi_drq = (unsigned char *) VIA1_BASE + 0xE000;
+ mac_scsi_nodrq = (unsigned char *) VIA1_BASE + 0xC000;
/* The IIFX should be able to do true DMA, but pseudo-dma doesn't work */
flags = FLAG_NO_PSEUDO_DMA;
} else {
- mac_scsi_regp = via1+0x10000;
- mac_scsi_drq = via1+0x6000;
- mac_scsi_nodrq = via1+0x12000;
+ mac_scsi_regp = (unsigned char *) VIA1_BASE + 0x10000;
+ mac_scsi_drq = (unsigned char *) VIA1_BASE + 0x6000;
+ mac_scsi_nodrq = (unsigned char *) VIA1_BASE + 0x12000;
}
if (! setup_use_pdma)
@@ -520,3 +480,5 @@ static struct scsi_host_template driver_template = {
#include "scsi_module.c"
+
+MODULE_LICENSE("GPL");