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authorChristoph Hellwig <hch@lst.de>2021-06-16 16:46:58 +0300
committerJens Axboe <axboe@kernel.dk>2021-06-16 17:53:58 +0300
commitb7fb14d3ac63117e0e8beabe75f4ea52051fbe3a (patch)
treec41a62265a9e8fb40e8d3572a984c5ad8d313b7c /drivers/ide/falconide.c
parentb90257bfddbd01f3686d99c256ae6dd24a6a1deb (diff)
downloadlinux-b7fb14d3ac63117e0e8beabe75f4ea52051fbe3a.tar.xz
ide: remove the legacy ide driver
The legay ide driver has been replace with libata starting in 2003 and has been scheduled for removal for a while. Finally kill it off so that we can start cleaning up various bits of cruft it forced on the block layer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/ide/falconide.c')
-rw-r--r--drivers/ide/falconide.c226
1 files changed, 0 insertions, 226 deletions
diff --git a/drivers/ide/falconide.c b/drivers/ide/falconide.c
deleted file mode 100644
index a73a9dc17e4d..000000000000
--- a/drivers/ide/falconide.c
+++ /dev/null
@@ -1,226 +0,0 @@
-/*
- * 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 <linux/platform_device.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"
-
-#ifdef CONFIG_ATARI
- /*
- * 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();
-}
-
-static void falconide_get_lock(irq_handler_t handler, void *data)
-{
- if (falconide_intr_lock == 0) {
- stdma_lock(handler, data);
- falconide_intr_lock = 1;
- }
-}
-#endif
-
-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);
-}
-
-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);
-}
-
-/* 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 = {
-#ifdef CONFIG_ATARI
- .get_lock = falconide_get_lock,
- .release_lock = falconide_release_lock,
-#endif
- .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, unsigned long base,
- unsigned long ctl, int irq)
-{
- 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 + 1 + i * 4;
-
- hw->io_ports.ctl_addr = ctl + 1;
-
- hw->irq = irq;
-}
-
- /*
- * Probe for a Falcon IDE interface
- */
-
-static int __init falconide_init(struct platform_device *pdev)
-{
- struct resource *base_mem_res, *ctl_mem_res;
- struct resource *base_res, *ctl_res, *irq_res;
- struct ide_host *host;
- struct ide_hw hw, *hws[] = { &hw };
- int rc;
- int irq;
-
- dev_info(&pdev->dev, "Atari Falcon and Q40/Q60 IDE controller\n");
-
- base_res = platform_get_resource(pdev, IORESOURCE_IO, 0);
- if (base_res && !devm_request_region(&pdev->dev, base_res->start,
- resource_size(base_res), DRV_NAME)) {
- dev_err(&pdev->dev, "resources busy\n");
- return -EBUSY;
- }
-
- ctl_res = platform_get_resource(pdev, IORESOURCE_IO, 0);
- if (ctl_res && !devm_request_region(&pdev->dev, ctl_res->start,
- resource_size(ctl_res), DRV_NAME)) {
- dev_err(&pdev->dev, "resources busy\n");
- return -EBUSY;
- }
-
- base_mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!base_mem_res)
- return -ENODEV;
-
- if (!devm_request_mem_region(&pdev->dev, base_mem_res->start,
- resource_size(base_mem_res), DRV_NAME)) {
- dev_err(&pdev->dev, "resources busy\n");
- return -EBUSY;
- }
-
- ctl_mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- if (!ctl_mem_res)
- return -ENODEV;
-
- if (MACH_IS_ATARI) {
- irq = IRQ_MFP_IDE;
- } else {
- irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (irq_res && irq_res->start > 0)
- irq = irq_res->start;
- else
- return -ENODEV;
- }
-
- falconide_setup_ports(&hw, base_mem_res->start, ctl_mem_res->start, irq);
-
- host = ide_host_alloc(&falconide_port_info, hws, 1);
- if (!host)
- return -ENOMEM;
-
- if (!MACH_IS_ATARI) {
- host->get_lock = NULL;
- host->release_lock = NULL;
- }
-
- if (host->get_lock)
- host->get_lock(NULL, NULL);
- rc = ide_host_register(host, &falconide_port_info, hws);
- if (host->release_lock)
- host->release_lock();
-
- if (rc)
- goto err_free;
-
- platform_set_drvdata(pdev, host);
- return 0;
-err_free:
- ide_host_free(host);
- return rc;
-}
-
-static int falconide_remove(struct platform_device *pdev)
-{
- struct ide_host *host = platform_get_drvdata(pdev);
-
- ide_host_remove(host);
-
- return 0;
-}
-
-static struct platform_driver ide_falcon_driver = {
- .remove = falconide_remove,
- .driver = {
- .name = "atari-falcon-ide",
- },
-};
-
-module_platform_driver_probe(ide_falcon_driver, falconide_init);
-
-MODULE_AUTHOR("Geert Uytterhoeven");
-MODULE_DESCRIPTION("low-level driver for Atari Falcon IDE");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:atari-falcon-ide");