linux/drivers/misc/cardreader/rts5209.c

// SPDX-License-Identifier: GPL-2.0-or-later
/* Driver for Realtek PCI-Express card reader
 *
 * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
 *
 * Author:
 *   Wei WANG <[email protected]>
 */

#include <linux/module.h>
#include <linux/delay.h>
#include <linux/rtsx_pci.h>

#include "rtsx_pcr.h"

static u8 rts5209_get_ic_version(struct rtsx_pcr *pcr)
{ … }

static void rts5209_fetch_vendor_settings(struct rtsx_pcr *pcr)
{ … }

static void rts5209_force_power_down(struct rtsx_pcr *pcr, u8 pm_state, bool runtime)
{ … }

static int rts5209_extra_init_hw(struct rtsx_pcr *pcr)
{ … }

static int rts5209_optimize_phy(struct rtsx_pcr *pcr)
{ … }

static int rts5209_turn_on_led(struct rtsx_pcr *pcr)
{ … }

static int rts5209_turn_off_led(struct rtsx_pcr *pcr)
{ … }

static int rts5209_enable_auto_blink(struct rtsx_pcr *pcr)
{ … }

static int rts5209_disable_auto_blink(struct rtsx_pcr *pcr)
{ … }

static int rts5209_card_power_on(struct rtsx_pcr *pcr, int card)
{ … }

static int rts5209_card_power_off(struct rtsx_pcr *pcr, int card)
{ … }

static int rts5209_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
{ … }

static const struct pcr_ops rts5209_pcr_ops = …;

/* SD Pull Control Enable:
 *     SD_DAT[3:0] ==> pull up
 *     SD_CD       ==> pull up
 *     SD_WP       ==> pull up
 *     SD_CMD      ==> pull up
 *     SD_CLK      ==> pull down
 */
static const u32 rts5209_sd_pull_ctl_enable_tbl[] = …;

/* SD Pull Control Disable:
 *     SD_DAT[3:0] ==> pull down
 *     SD_CD       ==> pull up
 *     SD_WP       ==> pull down
 *     SD_CMD      ==> pull down
 *     SD_CLK      ==> pull down
 */
static const u32 rts5209_sd_pull_ctl_disable_tbl[] = …;

/* MS Pull Control Enable:
 *     MS CD       ==> pull up
 *     others      ==> pull down
 */
static const u32 rts5209_ms_pull_ctl_enable_tbl[] = …;

/* MS Pull Control Disable:
 *     MS CD       ==> pull up
 *     others      ==> pull down
 */
static const u32 rts5209_ms_pull_ctl_disable_tbl[] = …;

void rts5209_init_params(struct rtsx_pcr *pcr)
{ … }