drivers/pcmcia/sa1100_h3600.c
Source file repositories/reference/linux-study-clean/drivers/pcmcia/sa1100_h3600.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/pcmcia/sa1100_h3600.c- Extension
.c- Size
- 3997 bytes
- Lines
- 164
- Domain
- Driver Families
- Bucket
- drivers/pcmcia
- Inferred role
- Driver Families: implementation source
- Status
- source implementation candidate
Why This File Exists
Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/module.hlinux/kernel.hlinux/device.hlinux/interrupt.hlinux/init.hlinux/delay.hlinux/gpio.hmach/hardware.hasm/irq.hasm/mach-types.hmach/h3xxx.hsa1100_generic.h
Detected Declarations
function h3600_pcmcia_hw_initfunction h3600_pcmcia_hw_shutdownfunction h3600_pcmcia_socket_statefunction h3600_pcmcia_configure_socketfunction h3600_pcmcia_socket_initfunction h3600_pcmcia_socket_suspendfunction pcmcia_h3600_init
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0
/*
* drivers/pcmcia/sa1100_h3600.c
*
* PCMCIA implementation routines for H3600
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <mach/h3xxx.h>
#include "sa1100_generic.h"
static int h3600_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
{
int err;
skt->stat[SOC_STAT_CD].name = skt->nr ? "pcmcia1-detect" : "pcmcia0-detect";
skt->stat[SOC_STAT_RDY].name = skt->nr ? "pcmcia1-ready" : "pcmcia0-ready";
err = soc_pcmcia_request_gpiods(skt);
if (err)
return err;
switch (skt->nr) {
case 0:
err = gpio_request(H3XXX_EGPIO_OPT_NVRAM_ON, "OPT NVRAM ON");
if (err)
goto err01;
err = gpio_direction_output(H3XXX_EGPIO_OPT_NVRAM_ON, 0);
if (err)
goto err03;
err = gpio_request(H3XXX_EGPIO_OPT_ON, "OPT ON");
if (err)
goto err03;
err = gpio_direction_output(H3XXX_EGPIO_OPT_ON, 0);
if (err)
goto err04;
err = gpio_request(H3XXX_EGPIO_OPT_RESET, "OPT RESET");
if (err)
goto err04;
err = gpio_direction_output(H3XXX_EGPIO_OPT_RESET, 0);
if (err)
goto err05;
err = gpio_request(H3XXX_EGPIO_CARD_RESET, "PCMCIA CARD RESET");
if (err)
goto err05;
err = gpio_direction_output(H3XXX_EGPIO_CARD_RESET, 0);
if (err)
goto err06;
break;
case 1:
break;
}
return 0;
err06: gpio_free(H3XXX_EGPIO_CARD_RESET);
err05: gpio_free(H3XXX_EGPIO_OPT_RESET);
err04: gpio_free(H3XXX_EGPIO_OPT_ON);
err03: gpio_free(H3XXX_EGPIO_OPT_NVRAM_ON);
err01: gpio_free(H3XXX_GPIO_PCMCIA_IRQ0);
return err;
}
static void h3600_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
{
switch (skt->nr) {
case 0:
/* Disable CF bus: */
gpio_set_value(H3XXX_EGPIO_OPT_NVRAM_ON, 0);
gpio_set_value(H3XXX_EGPIO_OPT_ON, 0);
gpio_set_value(H3XXX_EGPIO_OPT_RESET, 1);
gpio_free(H3XXX_EGPIO_CARD_RESET);
gpio_free(H3XXX_EGPIO_OPT_RESET);
gpio_free(H3XXX_EGPIO_OPT_ON);
gpio_free(H3XXX_EGPIO_OPT_NVRAM_ON);
break;
case 1:
break;
}
Annotation
- Immediate include surface: `linux/module.h`, `linux/kernel.h`, `linux/device.h`, `linux/interrupt.h`, `linux/init.h`, `linux/delay.h`, `linux/gpio.h`, `mach/hardware.h`.
- Detected declarations: `function h3600_pcmcia_hw_init`, `function h3600_pcmcia_hw_shutdown`, `function h3600_pcmcia_socket_state`, `function h3600_pcmcia_configure_socket`, `function h3600_pcmcia_socket_init`, `function h3600_pcmcia_socket_suspend`, `function pcmcia_h3600_init`.
- Atlas domain: Driver Families / drivers/pcmcia.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.