Release 4.7 drivers/ide/falconide.c
/*
* Atari Falcon IDE Driver
*
* Created 12 Jul 1997 by Geert Uytterhoeven
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/blkdev.h>
#include <linux/ide.h>
#include <linux/init.h>
#include <asm/setup.h>
#include <asm/atarihw.h>
#include <asm/atariints.h>
#include <asm/atari_stdma.h>
#include <asm/ide.h>
#define DRV_NAME "falconide"
/*
* Base of the IDE interface
*/
#define ATA_HD_BASE 0xfff00000
/*
* Offsets from the above base
*/
#define ATA_HD_CONTROL 0x39
/*
* falconide_intr_lock is used to obtain access to the IDE interrupt,
* which is shared between several drivers.
*/
static int falconide_intr_lock;
static void falconide_release_lock(void)
{
if (falconide_intr_lock == 0) {
printk(KERN_ERR "%s: bug\n", __func__);
return;
}
falconide_intr_lock = 0;
stdma_release();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 31 | 96.88% | 1 | 50.00% |
| al viro | al viro | 1 | 3.12% | 1 | 50.00% |
| Total | 32 | 100.00% | 2 | 100.00% |
static void falconide_get_lock(irq_handler_t handler, void *data)
{
if (falconide_intr_lock == 0) {
if (in_interrupt() > 0)
panic("Falcon IDE hasn't ST-DMA lock in interrupt");
stdma_lock(handler, data);
falconide_intr_lock = 1;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 41 | 93.18% | 1 | 50.00% |
| al viro | al viro | 3 | 6.82% | 1 | 50.00% |
| Total | 44 | 100.00% | 2 | 100.00% |
static void falconide_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
unsigned long data_addr = drive->hwif->io_ports.data_addr;
if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS)) {
__ide_mm_insw(data_addr, buf, (len + 1) / 2);
return;
}
raw_insw_swapw((u16 *)data_addr, buf, (len + 1) / 2);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 85 | 94.44% | 4 | 80.00% |
| geert uytterhoeven | geert uytterhoeven | 5 | 5.56% | 1 | 20.00% |
| Total | 90 | 100.00% | 5 | 100.00% |
static void falconide_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
void *buf, unsigned int len)
{
unsigned long data_addr = drive->hwif->io_ports.data_addr;
if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS)) {
__ide_mm_outsw(data_addr, buf, (len + 1) / 2);
return;
}
raw_outsw_swapw((u16 *)data_addr, buf, (len + 1) / 2);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 84 | 93.33% | 4 | 66.67% |
| geert uytterhoeven | geert uytterhoeven | 6 | 6.67% | 2 | 33.33% |
| Total | 90 | 100.00% | 6 | 100.00% |
/* Atari has a byte-swapped IDE interface */
static const struct ide_tp_ops falconide_tp_ops = {
.exec_command = ide_exec_command,
.read_status = ide_read_status,
.read_altstatus = ide_read_altstatus,
.write_devctl = ide_write_devctl,
.dev_select = ide_dev_select,
.tf_load = ide_tf_load,
.tf_read = ide_tf_read,
.input_data = falconide_input_data,
.output_data = falconide_output_data,
};
static const struct ide_port_info falconide_port_info = {
.get_lock = falconide_get_lock,
.release_lock = falconide_release_lock,
.tp_ops = &falconide_tp_ops,
.host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_SERIALIZE |
IDE_HFLAG_NO_DMA,
.irq_flags = IRQF_SHARED,
.chipset = ide_generic,
};
static void __init falconide_setup_ports(struct ide_hw *hw)
{
int i;
memset(hw, 0, sizeof(*hw));
hw->io_ports.data_addr = ATA_HD_BASE;
for (i = 1; i < 8; i++)
hw->io_ports_array[i] = ATA_HD_BASE + 1 + i * 4;
hw->io_ports.ctl_addr = ATA_HD_BASE + ATA_HD_CONTROL;
hw->irq = IRQ_MFP_IDE;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 78 | 97.50% | 3 | 75.00% |
| geert uytterhoeven | geert uytterhoeven | 2 | 2.50% | 1 | 25.00% |
| Total | 80 | 100.00% | 4 | 100.00% |
/*
* Probe for a Falcon IDE interface
*/
static int __init falconide_init(void)
{
struct ide_host *host;
struct ide_hw hw, *hws[] = { &hw };
int rc;
if (!MACH_IS_ATARI || !ATARIHW_PRESENT(IDE))
return -ENODEV;
printk(KERN_INFO "ide: Falcon IDE controller\n");
if (!request_mem_region(ATA_HD_BASE, 0x40, DRV_NAME)) {
printk(KERN_ERR "%s: resources busy\n", DRV_NAME);
return -EBUSY;
}
falconide_setup_ports(&hw);
host = ide_host_alloc(&falconide_port_info, hws, 1);
if (host == NULL) {
rc = -ENOMEM;
goto err;
}
falconide_get_lock(NULL, NULL);
rc = ide_host_register(host, &falconide_port_info, hws);
falconide_release_lock();
if (rc)
goto err_free;
return 0;
err_free:
ide_host_free(host);
err:
release_mem_region(ATA_HD_BASE, 0x40);
return rc;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 138 | 85.19% | 15 | 93.75% |
| jens axboe | jens axboe | 24 | 14.81% | 1 | 6.25% |
| Total | 162 | 100.00% | 16 | 100.00% |
module_init(falconide_init);
MODULE_LICENSE("GPL");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 556 | 83.99% | 24 | 70.59% |
| jens axboe | jens axboe | 65 | 9.82% | 1 | 2.94% |
| geert uytterhoeven | geert uytterhoeven | 20 | 3.02% | 4 | 11.76% |
| sergei shtylyov | sergei shtylyov | 7 | 1.06% | 2 | 5.88% |
| al viro | al viro | 7 | 1.06% | 1 | 2.94% |
| adrian bunk | adrian bunk | 5 | 0.76% | 1 | 2.94% |
| michael schmitz | michael schmitz | 2 | 0.30% | 1 | 2.94% |
| Total | 662 | 100.00% | 34 | 100.00% |
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