Release 4.7 drivers/ide/gayle.c
/*
* Amiga Gayle IDE Driver
*
* Created 9 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/types.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/blkdev.h>
#include <linux/ide.h>
#include <linux/init.h>
#include <linux/zorro.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <asm/setup.h>
#include <asm/amigahw.h>
#include <asm/amigaints.h>
#include <asm/amigayle.h>
/*
* Offsets from one of the above bases
*/
#define GAYLE_CONTROL 0x101a
/*
* These are at different offsets from the base
*/
#define GAYLE_IRQ_4000 0xdd3020
/* MSB = 1, Harddisk is source of */
#define GAYLE_IRQ_1200 0xda9000
/* interrupt */
/*
* Offset of the secondary port for IDE doublers
* Note that GAYLE_CONTROL is NOT available then!
*/
#define GAYLE_NEXT_PORT 0x1000
#define GAYLE_NUM_HWIFS 2
#define GAYLE_NUM_PROBE_HWIFS (ide_doubler ? GAYLE_NUM_HWIFS : \
GAYLE_NUM_HWIFS-1)
#define GAYLE_HAS_CONTROL_REG (!ide_doubler)
static bool ide_doubler;
module_param_named(doubler, ide_doubler, bool, 0);
MODULE_PARM_DESC(doubler, "enable support for IDE doublers");
/*
* Check and acknowledge the interrupt status
*/
static int gayle_test_irq(ide_hwif_t *hwif)
{
unsigned char ch;
ch = z_readb(hwif->io_ports.irq_addr);
if (!(ch & GAYLE_IRQ_IDE))
return 0;
return 1;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jens axboe | jens axboe | 37 | 92.50% | 1 | 33.33% |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 2 | 5.00% | 1 | 33.33% |
| sergei shtylyov | sergei shtylyov | 1 | 2.50% | 1 | 33.33% |
| Total | 40 | 100.00% | 3 | 100.00% |
static void gayle_a1200_clear_irq(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
(void)z_readb(hwif->io_ports.status_addr);
z_writeb(0x7c, hwif->io_ports.irq_addr);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jens axboe | jens axboe | 27 | 65.85% | 1 | 33.33% |
| sergei shtylyov | sergei shtylyov | 10 | 24.39% | 1 | 33.33% |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 4 | 9.76% | 1 | 33.33% |
| Total | 41 | 100.00% | 3 | 100.00% |
static void __init gayle_setup_ports(struct ide_hw *hw, unsigned long base,
unsigned long ctl, unsigned long irq_port)
{
int i;
memset(hw, 0, sizeof(*hw));
hw->io_ports.data_addr = base;
for (i = 1; i < 8; i++)
hw->io_ports_array[i] = base + 2 + i * 4;
hw->io_ports.ctl_addr = ctl;
hw->io_ports.irq_addr = irq_port;
hw->irq = IRQ_AMIGA_PORTS;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 98 | 100.00% | 3 | 100.00% |
| Total | 98 | 100.00% | 3 | 100.00% |
static const struct ide_port_ops gayle_a4000_port_ops = {
.test_irq = gayle_test_irq,
};
static const struct ide_port_ops gayle_a1200_port_ops = {
.clear_irq = gayle_a1200_clear_irq,
.test_irq = gayle_test_irq,
};
static const struct ide_port_info gayle_port_info = {
.host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_SERIALIZE |
IDE_HFLAG_NO_DMA,
.irq_flags = IRQF_SHARED,
.chipset = ide_generic,
};
/*
* Probe for a Gayle IDE interface (and optionally for an IDE doubler)
*/
static int __init amiga_gayle_ide_probe(struct platform_device *pdev)
{
struct resource *res;
struct gayle_ide_platform_data *pdata;
unsigned long base, ctrlport, irqport;
unsigned int i;
int error;
struct ide_hw hw[GAYLE_NUM_HWIFS], *hws[GAYLE_NUM_HWIFS];
struct ide_port_info d = gayle_port_info;
struct ide_host *host;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
if (!request_mem_region(res->start, resource_size(res), "IDE"))
return -EBUSY;
pdata = dev_get_platdata(&pdev->dev);
pr_info("ide: Gayle IDE controller (A%u style%s)\n",
pdata->explicit_ack ? 1200 : 4000,
ide_doubler ? ", IDE doubler" : "");
base = (unsigned long)ZTWO_VADDR(pdata->base);
ctrlport = 0;
irqport = (unsigned long)ZTWO_VADDR(pdata->irqport);
if (pdata->explicit_ack)
d.port_ops = &gayle_a1200_port_ops;
else
d.port_ops = &gayle_a4000_port_ops;
for (i = 0; i < GAYLE_NUM_PROBE_HWIFS; i++, base += GAYLE_NEXT_PORT) {
if (GAYLE_HAS_CONTROL_REG)
ctrlport = base + GAYLE_CONTROL;
gayle_setup_ports(&hw[i], base, ctrlport, irqport);
hws[i] = &hw[i];
}
error = ide_host_add(&d, hws, i, &host);
if (error)
goto out;
platform_set_drvdata(pdev, host);
return 0;
out:
release_mem_region(res->start, resource_size(res));
return error;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| geert uytterhoeven | geert uytterhoeven | 121 | 42.31% | 1 | 5.00% |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 86 | 30.07% | 14 | 70.00% |
| jens axboe | jens axboe | 56 | 19.58% | 1 | 5.00% |
| sergei shtylyov | sergei shtylyov | 12 | 4.20% | 1 | 5.00% |
| jingoo han | jingoo han | 4 | 1.40% | 1 | 5.00% |
| alan cox | alan cox | 4 | 1.40% | 1 | 5.00% |
| andrew morton | andrew morton | 3 | 1.05% | 1 | 5.00% |
| Total | 286 | 100.00% | 20 | 100.00% |
static int __exit amiga_gayle_ide_remove(struct platform_device *pdev)
{
struct ide_host *host = platform_get_drvdata(pdev);
struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ide_host_remove(host);
release_mem_region(res->start, resource_size(res));
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| geert uytterhoeven | geert uytterhoeven | 50 | 89.29% | 1 | 50.00% |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 6 | 10.71% | 1 | 50.00% |
| Total | 56 | 100.00% | 2 | 100.00% |
static struct platform_driver amiga_gayle_ide_driver = {
.remove = __exit_p(amiga_gayle_ide_remove),
.driver = {
.name = "amiga-gayle-ide",
},
};
module_platform_driver_probe(amiga_gayle_ide_driver, amiga_gayle_ide_probe);
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:amiga-gayle-ide");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 244 | 33.98% | 21 | 65.62% |
| geert uytterhoeven | geert uytterhoeven | 209 | 29.11% | 1 | 3.12% |
| jens axboe | jens axboe | 190 | 26.46% | 1 | 3.12% |
| sergei shtylyov | sergei shtylyov | 54 | 7.52% | 2 | 6.25% |
| adrian bunk | adrian bunk | 8 | 1.11% | 2 | 6.25% |
| jingoo han | jingoo han | 5 | 0.70% | 2 | 6.25% |
| alan cox | alan cox | 4 | 0.56% | 1 | 3.12% |
| andrew morton | andrew morton | 3 | 0.42% | 1 | 3.12% |
| rusty russell | rusty russell | 1 | 0.14% | 1 | 3.12% |
| Total | 718 | 100.00% | 32 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.