cregit-Linux how code gets into the kernel

Release 4.14 drivers/pcmcia/sa1100_shannon.c

Directory: drivers/pcmcia
// SPDX-License-Identifier: GPL-2.0
/*
 * drivers/pcmcia/sa1100_shannon.c
 *
 * PCMCIA implementation routines for Shannon
 *
 */
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/io.h>

#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <mach/shannon.h>
#include <asm/irq.h>
#include "sa1100_generic.h"


static int shannon_pcmcia_hw_init(struct soc_pcmcia_socket *skt) { /* All those are inputs */ GAFR &= ~(GPIO_GPIO(SHANNON_GPIO_EJECT_0) | GPIO_GPIO(SHANNON_GPIO_EJECT_1) | GPIO_GPIO(SHANNON_GPIO_RDY_0) | GPIO_GPIO(SHANNON_GPIO_RDY_1)); if (skt->nr == 0) { skt->stat[SOC_STAT_CD].gpio = SHANNON_GPIO_EJECT_0; skt->stat[SOC_STAT_CD].name = "PCMCIA_CD_0"; skt->stat[SOC_STAT_RDY].gpio = SHANNON_GPIO_RDY_0; skt->stat[SOC_STAT_RDY].name = "PCMCIA_RDY_0"; } else { skt->stat[SOC_STAT_CD].gpio = SHANNON_GPIO_EJECT_1; skt->stat[SOC_STAT_CD].name = "PCMCIA_CD_1"; skt->stat[SOC_STAT_RDY].gpio = SHANNON_GPIO_RDY_1; skt->stat[SOC_STAT_RDY].name = "PCMCIA_RDY_1"; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Russell King14099.29%583.33%
Nico Pitre10.71%116.67%
Total141100.00%6100.00%


static void shannon_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) { switch (skt->nr) { case 0: state->bvd1 = 1; state->bvd2 = 1; state->vs_3v = 1; /* FIXME Can only apply 3.3V on Shannon. */ state->vs_Xv = 0; break; case 1: state->bvd1 = 1; state->bvd2 = 1; state->vs_3v = 1; /* FIXME Can only apply 3.3V on Shannon. */ state->vs_Xv = 0; break; } }

Contributors

PersonTokensPropCommitsCommitProp
Russell King8198.78%375.00%
Nico Pitre11.22%125.00%
Total82100.00%4100.00%


static int shannon_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) { switch (state->Vcc) { case 0: /* power off */ printk(KERN_WARNING "%s(): CS asked for 0V, still applying 3.3V..\n", __func__); break; case 50: printk(KERN_WARNING "%s(): CS asked for 5V, applying 3.3V..\n", __func__); case 33: break; default: printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __func__, state->Vcc); return -1; } printk(KERN_WARNING "%s(): Warning, Can't perform reset\n", __func__); /* Silently ignore Vpp, output enable, speaker enable. */ return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Russell King5770.37%350.00%
Andrew Morton1923.46%116.67%
Harvey Harrison44.94%116.67%
Nico Pitre11.23%116.67%
Total81100.00%6100.00%

static struct pcmcia_low_level shannon_pcmcia_ops = { .owner = THIS_MODULE, .hw_init = shannon_pcmcia_hw_init, .socket_state = shannon_pcmcia_socket_state, .configure_socket = shannon_pcmcia_configure_socket, };
int pcmcia_shannon_init(struct device *dev) { int ret = -ENODEV; if (machine_is_shannon()) ret = sa11xx_drv_pcmcia_probe(dev, &shannon_pcmcia_ops, 0, 2); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Russell King38100.00%3100.00%
Total38100.00%3100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Russell King37493.27%1275.00%
Andrew Morton194.74%16.25%
Harvey Harrison41.00%16.25%
Nico Pitre30.75%16.25%
Greg Kroah-Hartman10.25%16.25%
Total401100.00%16100.00%
Directory: drivers/pcmcia
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