imm.c (1da177e4c3f41524e886b7f1b8a0c1fc7321cac2) imm.c (68b3aa7c9805aee9005a8ca53c5e99177961fbb9)
1/* imm.c -- low level driver for the IOMEGA MatchMaker
2 * parallel port SCSI host adapter.
3 *
4 * (The IMM is the embedded controller in the ZIP Plus drive.)
5 *
6 * Current Maintainer: David Campbell (Perth, Western Australia)
7 * campbell@torque.net
8 *

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13
14#include <linux/config.h>
15#include <linux/init.h>
16#include <linux/kernel.h>
17#include <linux/module.h>
18#include <linux/blkdev.h>
19#include <linux/parport.h>
20#include <linux/workqueue.h>
1/* imm.c -- low level driver for the IOMEGA MatchMaker
2 * parallel port SCSI host adapter.
3 *
4 * (The IMM is the embedded controller in the ZIP Plus drive.)
5 *
6 * Current Maintainer: David Campbell (Perth, Western Australia)
7 * campbell@torque.net
8 *

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13
14#include <linux/config.h>
15#include <linux/init.h>
16#include <linux/kernel.h>
17#include <linux/module.h>
18#include <linux/blkdev.h>
19#include <linux/parport.h>
20#include <linux/workqueue.h>
21#include <linux/delay.h>
21#include <asm/io.h>
22
23#include <scsi/scsi.h>
24#include <scsi/scsi_cmnd.h>
25#include <scsi/scsi_device.h>
26#include <scsi/scsi_host.h>
27
28/* The following #define is to avoid a clash with hosts.c */

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605 return (k) ? 1 : 0;
606}
607
608static int imm_init(imm_struct *dev)
609{
610 if (imm_connect(dev, 0) != 1)
611 return -EIO;
612 imm_reset_pulse(dev->base);
22#include <asm/io.h>
23
24#include <scsi/scsi.h>
25#include <scsi/scsi_cmnd.h>
26#include <scsi/scsi_device.h>
27#include <scsi/scsi_host.h>
28
29/* The following #define is to avoid a clash with hosts.c */

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606 return (k) ? 1 : 0;
607}
608
609static int imm_init(imm_struct *dev)
610{
611 if (imm_connect(dev, 0) != 1)
612 return -EIO;
613 imm_reset_pulse(dev->base);
613 udelay(1000); /* Delay to allow devices to settle */
614 mdelay(1); /* Delay to allow devices to settle */
614 imm_disconnect(dev);
615 imm_disconnect(dev);
615 udelay(1000); /* Another delay to allow devices to settle */
616 mdelay(1); /* Another delay to allow devices to settle */
616 return device_check(dev);
617}
618
619static inline int imm_send_command(struct scsi_cmnd *cmd)
620{
621 imm_struct *dev = imm_dev(cmd->device->host);
622 int k;
623

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1021 imm_struct *dev = imm_dev(cmd->device->host);
1022
1023 if (cmd->SCp.phase)
1024 imm_disconnect(dev);
1025 dev->cur_cmd = NULL; /* Forget the problem */
1026
1027 imm_connect(dev, CONNECT_NORMAL);
1028 imm_reset_pulse(dev->base);
617 return device_check(dev);
618}
619
620static inline int imm_send_command(struct scsi_cmnd *cmd)
621{
622 imm_struct *dev = imm_dev(cmd->device->host);
623 int k;
624

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1022 imm_struct *dev = imm_dev(cmd->device->host);
1023
1024 if (cmd->SCp.phase)
1025 imm_disconnect(dev);
1026 dev->cur_cmd = NULL; /* Forget the problem */
1027
1028 imm_connect(dev, CONNECT_NORMAL);
1029 imm_reset_pulse(dev->base);
1029 udelay(1000); /* device settle delay */
1030 mdelay(1); /* device settle delay */
1030 imm_disconnect(dev);
1031 imm_disconnect(dev);
1031 udelay(1000); /* device settle delay */
1032 mdelay(1); /* device settle delay */
1032 return SUCCESS;
1033}
1034
1035static int device_check(imm_struct *dev)
1036{
1037 /* This routine looks for a device and then attempts to use EPP
1038 to send a command. If all goes as planned then EPP is available. */
1039

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1034}
1035
1036static int device_check(imm_struct *dev)
1037{
1038 /* This routine looks for a device and then attempts to use EPP
1039 to send a command. If all goes as planned then EPP is available. */
1040

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