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[PATCH] mmc: driver for TI FlashMedia card reader - source
Driver for TI Flash Media card reader. At present, only MMC/SD cards are supported. [akpm@osdl.org: cleanups, build fixes] Signed-off-by: Alex Dubov <oakad@yahoo.com> Cc: Daniel Qarras <dqarras@yahoo.com> Acked-by: Pierre Ossman <drzeus@drzeus.cx> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Alex Dubov
committed by
Linus Torvalds
Linus Torvalds
parent
856fe98f16
commit
4020f2d7f0
@@ -2854,6 +2854,11 @@ M: hlhung3i@gmail.com
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W: http://tcp-lp-mod.sourceforge.net/
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S: Maintained
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TI FLASH MEDIA INTERFACE DRIVER
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P: Alex Dubov
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M: oakad@yahoo.com
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S: Maintained
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TI OMAP RANDOM NUMBER GENERATOR SUPPORT
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P: Deepak Saxena
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M: dsaxena@plexity.net
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@@ -0,0 +1,437 @@
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/*
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* tifm_7xx1.c - TI FlashMedia driver
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*
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* Copyright (C) 2006 Alex Dubov <oakad@yahoo.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/tifm.h>
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#include <linux/dma-mapping.h>
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#define DRIVER_NAME "tifm_7xx1"
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#define DRIVER_VERSION "0.6"
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static void tifm_7xx1_eject(struct tifm_adapter *fm, struct tifm_dev *sock)
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{
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int cnt;
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unsigned long flags;
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spin_lock_irqsave(&fm->lock, flags);
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if (!fm->inhibit_new_cards) {
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for (cnt = 0; cnt < fm->max_sockets; cnt++) {
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if (fm->sockets[cnt] == sock) {
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fm->remove_mask |= (1 << cnt);
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queue_work(fm->wq, &fm->media_remover);
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break;
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}
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}
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}
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spin_unlock_irqrestore(&fm->lock, flags);
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}
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static void tifm_7xx1_remove_media(void *adapter)
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{
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struct tifm_adapter *fm = adapter;
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unsigned long flags;
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int cnt;
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struct tifm_dev *sock;
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if (!class_device_get(&fm->cdev))
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return;
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spin_lock_irqsave(&fm->lock, flags);
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for (cnt = 0; cnt < fm->max_sockets; cnt++) {
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if (fm->sockets[cnt] && (fm->remove_mask & (1 << cnt))) {
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printk(KERN_INFO DRIVER_NAME
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": demand removing card from socket %d\n", cnt);
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sock = fm->sockets[cnt];
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fm->sockets[cnt] = 0;
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fm->remove_mask &= ~(1 << cnt);
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writel(0x0e00, sock->addr + SOCK_CONTROL);
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writel((TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK) << cnt,
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fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
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writel((TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK) << cnt,
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fm->addr + FM_SET_INTERRUPT_ENABLE);
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spin_unlock_irqrestore(&fm->lock, flags);
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device_unregister(&sock->dev);
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spin_lock_irqsave(&fm->lock, flags);
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}
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}
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spin_unlock_irqrestore(&fm->lock, flags);
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class_device_put(&fm->cdev);
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}
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static irqreturn_t tifm_7xx1_isr(int irq, void *dev_id, struct pt_regs *regs)
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{
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struct tifm_adapter *fm = dev_id;
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unsigned int irq_status;
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unsigned int sock_irq_status, cnt;
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spin_lock(&fm->lock);
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irq_status = readl(fm->addr + FM_INTERRUPT_STATUS);
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if (irq_status == 0 || irq_status == (~0)) {
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spin_unlock(&fm->lock);
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return IRQ_NONE;
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}
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if (irq_status & TIFM_IRQ_ENABLE) {
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writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
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for (cnt = 0; cnt < fm->max_sockets; cnt++) {
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sock_irq_status = (irq_status >> cnt) &
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(TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK);
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if (fm->sockets[cnt]) {
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if (sock_irq_status &&
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fm->sockets[cnt]->signal_irq)
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sock_irq_status = fm->sockets[cnt]->
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signal_irq(fm->sockets[cnt],
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sock_irq_status);
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if (irq_status & (1 << cnt))
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fm->remove_mask |= 1 << cnt;
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} else {
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if (irq_status & (1 << cnt))
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fm->insert_mask |= 1 << cnt;
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}
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}
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}
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writel(irq_status, fm->addr + FM_INTERRUPT_STATUS);
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if (!fm->inhibit_new_cards) {
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if (!fm->remove_mask && !fm->insert_mask) {
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writel(TIFM_IRQ_ENABLE,
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fm->addr + FM_SET_INTERRUPT_ENABLE);
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} else {
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queue_work(fm->wq, &fm->media_remover);
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queue_work(fm->wq, &fm->media_inserter);
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}
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}
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spin_unlock(&fm->lock);
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return IRQ_HANDLED;
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}
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static tifm_media_id tifm_7xx1_toggle_sock_power(char *sock_addr, int is_x2)
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{
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unsigned int s_state;
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int cnt;
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writel(0x0e00, sock_addr + SOCK_CONTROL);
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for (cnt = 0; cnt < 100; cnt++) {
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if (!(TIFM_SOCK_STATE_POWERED &
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readl(sock_addr + SOCK_PRESENT_STATE)))
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break;
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msleep(10);
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}
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s_state = readl(sock_addr + SOCK_PRESENT_STATE);
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if (!(TIFM_SOCK_STATE_OCCUPIED & s_state))
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return FM_NULL;
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if (is_x2) {
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writel((s_state & 7) | 0x0c00, sock_addr + SOCK_CONTROL);
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} else {
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// SmartMedia cards need extra 40 msec
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if (((readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7) == 1)
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msleep(40);
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writel(readl(sock_addr + SOCK_CONTROL) | TIFM_CTRL_LED,
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sock_addr + SOCK_CONTROL);
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msleep(10);
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writel((s_state & 0x7) | 0x0c00 | TIFM_CTRL_LED,
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sock_addr + SOCK_CONTROL);
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}
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for (cnt = 0; cnt < 100; cnt++) {
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if ((TIFM_SOCK_STATE_POWERED &
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readl(sock_addr + SOCK_PRESENT_STATE)))
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break;
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msleep(10);
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}
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if (!is_x2)
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writel(readl(sock_addr + SOCK_CONTROL) & (~TIFM_CTRL_LED),
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sock_addr + SOCK_CONTROL);
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return (readl(sock_addr + SOCK_PRESENT_STATE) >> 4) & 7;
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}
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inline static char *tifm_7xx1_sock_addr(char *base_addr, unsigned int sock_num)
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{
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return base_addr + ((sock_num + 1) << 10);
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}
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static void tifm_7xx1_insert_media(void *adapter)
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{
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struct tifm_adapter *fm = adapter;
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unsigned long flags;
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tifm_media_id media_id;
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char *card_name = "xx";
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int cnt, ok_to_register;
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unsigned int insert_mask;
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struct tifm_dev *new_sock = 0;
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if (!class_device_get(&fm->cdev))
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return;
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spin_lock_irqsave(&fm->lock, flags);
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insert_mask = fm->insert_mask;
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fm->insert_mask = 0;
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if (fm->inhibit_new_cards) {
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spin_unlock_irqrestore(&fm->lock, flags);
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class_device_put(&fm->cdev);
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return;
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}
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spin_unlock_irqrestore(&fm->lock, flags);
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for (cnt = 0; cnt < fm->max_sockets; cnt++) {
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if (!(insert_mask & (1 << cnt)))
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continue;
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media_id = tifm_7xx1_toggle_sock_power(tifm_7xx1_sock_addr(fm->addr, cnt),
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fm->max_sockets == 2);
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if (media_id) {
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ok_to_register = 0;
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new_sock = tifm_alloc_device(fm, cnt);
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if (new_sock) {
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new_sock->addr = tifm_7xx1_sock_addr(fm->addr,
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cnt);
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new_sock->media_id = media_id;
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switch (media_id) {
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case 1:
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card_name = "xd";
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break;
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case 2:
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card_name = "ms";
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break;
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case 3:
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card_name = "sd";
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break;
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default:
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break;
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}
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snprintf(new_sock->dev.bus_id, BUS_ID_SIZE,
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"tifm_%s%u:%u", card_name, fm->id, cnt);
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printk(KERN_INFO DRIVER_NAME
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": %s card detected in socket %d\n",
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card_name, cnt);
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spin_lock_irqsave(&fm->lock, flags);
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if (!fm->sockets[cnt]) {
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fm->sockets[cnt] = new_sock;
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ok_to_register = 1;
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}
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spin_unlock_irqrestore(&fm->lock, flags);
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if (!ok_to_register ||
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device_register(&new_sock->dev)) {
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spin_lock_irqsave(&fm->lock, flags);
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fm->sockets[cnt] = 0;
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spin_unlock_irqrestore(&fm->lock,
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flags);
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tifm_free_device(&new_sock->dev);
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}
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}
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}
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writel((TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK) << cnt,
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fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
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writel((TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK) << cnt,
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fm->addr + FM_SET_INTERRUPT_ENABLE);
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}
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writel(TIFM_IRQ_ENABLE, fm->addr + FM_SET_INTERRUPT_ENABLE);
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class_device_put(&fm->cdev);
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}
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static int tifm_7xx1_suspend(struct pci_dev *dev, pm_message_t state)
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{
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struct tifm_adapter *fm = pci_get_drvdata(dev);
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unsigned long flags;
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spin_lock_irqsave(&fm->lock, flags);
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fm->inhibit_new_cards = 1;
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fm->remove_mask = 0xf;
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fm->insert_mask = 0;
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writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
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spin_unlock_irqrestore(&fm->lock, flags);
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flush_workqueue(fm->wq);
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tifm_7xx1_remove_media(fm);
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pci_set_power_state(dev, PCI_D3hot);
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pci_disable_device(dev);
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pci_save_state(dev);
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return 0;
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}
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static int tifm_7xx1_resume(struct pci_dev *dev)
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{
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struct tifm_adapter *fm = pci_get_drvdata(dev);
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unsigned long flags;
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pci_restore_state(dev);
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pci_enable_device(dev);
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pci_set_power_state(dev, PCI_D0);
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pci_set_master(dev);
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spin_lock_irqsave(&fm->lock, flags);
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fm->inhibit_new_cards = 0;
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writel(TIFM_IRQ_SETALL, fm->addr + FM_INTERRUPT_STATUS);
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writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
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writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SETALLSOCK,
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fm->addr + FM_SET_INTERRUPT_ENABLE);
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fm->insert_mask = 0xf;
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spin_unlock_irqrestore(&fm->lock, flags);
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return 0;
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}
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static int tifm_7xx1_probe(struct pci_dev *dev,
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const struct pci_device_id *dev_id)
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{
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struct tifm_adapter *fm;
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int pci_dev_busy = 0;
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int rc;
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rc = pci_set_dma_mask(dev, DMA_32BIT_MASK);
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if (rc)
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return rc;
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rc = pci_enable_device(dev);
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if (rc)
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return rc;
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pci_set_master(dev);
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rc = pci_request_regions(dev, DRIVER_NAME);
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if (rc) {
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pci_dev_busy = 1;
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goto err_out;
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}
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pci_intx(dev, 1);
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fm = tifm_alloc_adapter();
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if (!fm) {
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rc = -ENOMEM;
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goto err_out_int;
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}
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fm->dev = &dev->dev;
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fm->max_sockets = (dev->device == 0x803B) ? 2 : 4;
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fm->sockets = kzalloc(sizeof(struct tifm_dev*) * fm->max_sockets,
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GFP_KERNEL);
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if (!fm->sockets)
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goto err_out_free;
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INIT_WORK(&fm->media_inserter, tifm_7xx1_insert_media, fm);
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INIT_WORK(&fm->media_remover, tifm_7xx1_remove_media, fm);
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fm->eject = tifm_7xx1_eject;
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pci_set_drvdata(dev, fm);
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fm->addr = ioremap(pci_resource_start(dev, 0),
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pci_resource_len(dev, 0));
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if (!fm->addr)
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goto err_out_free;
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rc = request_irq(dev->irq, tifm_7xx1_isr, SA_SHIRQ, DRIVER_NAME, fm);
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if (rc)
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goto err_out_unmap;
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rc = tifm_add_adapter(fm);
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if (rc)
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goto err_out_irq;
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writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
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writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SETALLSOCK,
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fm->addr + FM_SET_INTERRUPT_ENABLE);
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fm->insert_mask = 0xf;
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return 0;
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err_out_irq:
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free_irq(dev->irq, fm);
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err_out_unmap:
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iounmap(fm->addr);
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err_out_free:
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pci_set_drvdata(dev, NULL);
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tifm_free_adapter(fm);
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err_out_int:
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pci_intx(dev, 0);
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pci_release_regions(dev);
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err_out:
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if (!pci_dev_busy)
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pci_disable_device(dev);
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return rc;
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}
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static void tifm_7xx1_remove(struct pci_dev *dev)
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{
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struct tifm_adapter *fm = pci_get_drvdata(dev);
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unsigned long flags;
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spin_lock_irqsave(&fm->lock, flags);
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fm->inhibit_new_cards = 1;
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fm->remove_mask = 0xf;
|
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fm->insert_mask = 0;
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writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
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spin_unlock_irqrestore(&fm->lock, flags);
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flush_workqueue(fm->wq);
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tifm_7xx1_remove_media(fm);
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writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
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free_irq(dev->irq, fm);
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tifm_remove_adapter(fm);
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pci_set_drvdata(dev, 0);
|
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|
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iounmap(fm->addr);
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pci_intx(dev, 0);
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pci_release_regions(dev);
|
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|
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pci_disable_device(dev);
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tifm_free_adapter(fm);
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}
|
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|
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static struct pci_device_id tifm_7xx1_pci_tbl [] = {
|
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{ PCI_VENDOR_ID_TI, 0x8033, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
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0 }, /* xx21 - the one I have */
|
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{ PCI_VENDOR_ID_TI, 0x803B, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
|
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0 }, /* xx12 - should be also supported */
|
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{ }
|
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};
|
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|
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static struct pci_driver tifm_7xx1_driver = {
|
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.name = DRIVER_NAME,
|
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.id_table = tifm_7xx1_pci_tbl,
|
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.probe = tifm_7xx1_probe,
|
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.remove = tifm_7xx1_remove,
|
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.suspend = tifm_7xx1_suspend,
|
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.resume = tifm_7xx1_resume,
|
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};
|
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|
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static int __init tifm_7xx1_init(void)
|
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{
|
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return pci_register_driver(&tifm_7xx1_driver);
|
||||
}
|
||||
|
||||
static void __exit tifm_7xx1_exit(void)
|
||||
{
|
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pci_unregister_driver(&tifm_7xx1_driver);
|
||||
}
|
||||
|
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MODULE_AUTHOR("Alex Dubov");
|
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MODULE_DESCRIPTION("TI FlashMedia host driver");
|
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MODULE_LICENSE("GPL");
|
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MODULE_DEVICE_TABLE(pci, tifm_7xx1_pci_tbl);
|
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MODULE_VERSION(DRIVER_VERSION);
|
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|
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module_init(tifm_7xx1_init);
|
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module_exit(tifm_7xx1_exit);
|
||||
@@ -0,0 +1,272 @@
|
||||
/*
|
||||
* tifm_core.c - TI FlashMedia driver
|
||||
*
|
||||
* Copyright (C) 2006 Alex Dubov <oakad@yahoo.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/tifm.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/idr.h>
|
||||
|
||||
#define DRIVER_NAME "tifm_core"
|
||||
#define DRIVER_VERSION "0.6"
|
||||
|
||||
static DEFINE_IDR(tifm_adapter_idr);
|
||||
static DEFINE_SPINLOCK(tifm_adapter_lock);
|
||||
|
||||
static tifm_media_id *tifm_device_match(tifm_media_id *ids,
|
||||
struct tifm_dev *dev)
|
||||
{
|
||||
while (*ids) {
|
||||
if (dev->media_id == *ids)
|
||||
return ids;
|
||||
ids++;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static int tifm_match(struct device *dev, struct device_driver *drv)
|
||||
{
|
||||
struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev);
|
||||
struct tifm_driver *fm_drv;
|
||||
|
||||
fm_drv = container_of(drv, struct tifm_driver, driver);
|
||||
if (!fm_drv->id_table)
|
||||
return -EINVAL;
|
||||
if (tifm_device_match(fm_drv->id_table, fm_dev))
|
||||
return 1;
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static int tifm_uevent(struct device *dev, char **envp, int num_envp,
|
||||
char *buffer, int buffer_size)
|
||||
{
|
||||
struct tifm_dev *fm_dev;
|
||||
int i = 0;
|
||||
int length = 0;
|
||||
const char *card_type_name[] = {"INV", "SM", "MS", "SD"};
|
||||
|
||||
if (!dev || !(fm_dev = container_of(dev, struct tifm_dev, dev)))
|
||||
return -ENODEV;
|
||||
if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
|
||||
"TIFM_CARD_TYPE=%s", card_type_name[fm_dev->media_id]))
|
||||
return -ENOMEM;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct bus_type tifm_bus_type = {
|
||||
.name = "tifm",
|
||||
.match = tifm_match,
|
||||
.uevent = tifm_uevent,
|
||||
};
|
||||
|
||||
static void tifm_free(struct class_device *cdev)
|
||||
{
|
||||
struct tifm_adapter *fm = container_of(cdev, struct tifm_adapter, cdev);
|
||||
|
||||
kfree(fm->sockets);
|
||||
if (fm->wq)
|
||||
destroy_workqueue(fm->wq);
|
||||
kfree(fm);
|
||||
}
|
||||
|
||||
static struct class tifm_adapter_class = {
|
||||
.name = "tifm_adapter",
|
||||
.release = tifm_free
|
||||
};
|
||||
|
||||
struct tifm_adapter *tifm_alloc_adapter(void)
|
||||
{
|
||||
struct tifm_adapter *fm;
|
||||
|
||||
fm = kzalloc(sizeof(struct tifm_adapter), GFP_KERNEL);
|
||||
if (fm) {
|
||||
fm->cdev.class = &tifm_adapter_class;
|
||||
spin_lock_init(&fm->lock);
|
||||
class_device_initialize(&fm->cdev);
|
||||
}
|
||||
return fm;
|
||||
}
|
||||
EXPORT_SYMBOL(tifm_alloc_adapter);
|
||||
|
||||
void tifm_free_adapter(struct tifm_adapter *fm)
|
||||
{
|
||||
class_device_put(&fm->cdev);
|
||||
}
|
||||
EXPORT_SYMBOL(tifm_free_adapter);
|
||||
|
||||
int tifm_add_adapter(struct tifm_adapter *fm)
|
||||
{
|
||||
int rc;
|
||||
|
||||
if (!idr_pre_get(&tifm_adapter_idr, GFP_KERNEL))
|
||||
return -ENOMEM;
|
||||
|
||||
spin_lock(&tifm_adapter_lock);
|
||||
rc = idr_get_new(&tifm_adapter_idr, fm, &fm->id);
|
||||
spin_unlock(&tifm_adapter_lock);
|
||||
if (!rc) {
|
||||
snprintf(fm->cdev.class_id, BUS_ID_SIZE, "tifm%u", fm->id);
|
||||
strncpy(fm->wq_name, fm->cdev.class_id, KOBJ_NAME_LEN);
|
||||
|
||||
fm->wq = create_singlethread_workqueue(fm->wq_name);
|
||||
if (fm->wq)
|
||||
return class_device_add(&fm->cdev);
|
||||
|
||||
spin_lock(&tifm_adapter_lock);
|
||||
idr_remove(&tifm_adapter_idr, fm->id);
|
||||
spin_unlock(&tifm_adapter_lock);
|
||||
rc = -ENOMEM;
|
||||
}
|
||||
return rc;
|
||||
}
|
||||
EXPORT_SYMBOL(tifm_add_adapter);
|
||||
|
||||
void tifm_remove_adapter(struct tifm_adapter *fm)
|
||||
{
|
||||
class_device_del(&fm->cdev);
|
||||
|
||||
spin_lock(&tifm_adapter_lock);
|
||||
idr_remove(&tifm_adapter_idr, fm->id);
|
||||
spin_unlock(&tifm_adapter_lock);
|
||||
}
|
||||
EXPORT_SYMBOL(tifm_remove_adapter);
|
||||
|
||||
void tifm_free_device(struct device *dev)
|
||||
{
|
||||
struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev);
|
||||
if (fm_dev->wq)
|
||||
destroy_workqueue(fm_dev->wq);
|
||||
kfree(fm_dev);
|
||||
}
|
||||
EXPORT_SYMBOL(tifm_free_device);
|
||||
|
||||
struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id)
|
||||
{
|
||||
struct tifm_dev *dev = kzalloc(sizeof(struct tifm_dev), GFP_KERNEL);
|
||||
|
||||
if (dev) {
|
||||
spin_lock_init(&dev->lock);
|
||||
snprintf(dev->wq_name, KOBJ_NAME_LEN, "tifm%u:%u", fm->id, id);
|
||||
dev->wq = create_singlethread_workqueue(dev->wq_name);
|
||||
if (!dev->wq) {
|
||||
kfree(dev);
|
||||
return 0;
|
||||
}
|
||||
dev->dev.parent = fm->dev;
|
||||
dev->dev.bus = &tifm_bus_type;
|
||||
dev->dev.release = tifm_free_device;
|
||||
}
|
||||
return dev;
|
||||
}
|
||||
EXPORT_SYMBOL(tifm_alloc_device);
|
||||
|
||||
void tifm_eject(struct tifm_dev *sock)
|
||||
{
|
||||
struct tifm_adapter *fm = dev_get_drvdata(sock->dev.parent);
|
||||
fm->eject(fm, sock);
|
||||
}
|
||||
EXPORT_SYMBOL(tifm_eject);
|
||||
|
||||
int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
|
||||
int direction)
|
||||
{
|
||||
return pci_map_sg(to_pci_dev(sock->dev.parent), sg, nents, direction);
|
||||
}
|
||||
EXPORT_SYMBOL(tifm_map_sg);
|
||||
|
||||
void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
|
||||
int direction)
|
||||
{
|
||||
pci_unmap_sg(to_pci_dev(sock->dev.parent), sg, nents, direction);
|
||||
}
|
||||
EXPORT_SYMBOL(tifm_unmap_sg);
|
||||
|
||||
static int tifm_device_probe(struct device *dev)
|
||||
{
|
||||
struct tifm_driver *drv;
|
||||
struct tifm_dev *fm_dev;
|
||||
int rc = 0;
|
||||
const tifm_media_id *id;
|
||||
|
||||
drv = container_of(dev->driver, struct tifm_driver, driver);
|
||||
fm_dev = container_of(dev, struct tifm_dev, dev);
|
||||
get_device(dev);
|
||||
if (!fm_dev->drv && drv->probe && drv->id_table) {
|
||||
rc = -ENODEV;
|
||||
id = tifm_device_match(drv->id_table, fm_dev);
|
||||
if (id)
|
||||
rc = drv->probe(fm_dev);
|
||||
if (rc >= 0) {
|
||||
rc = 0;
|
||||
fm_dev->drv = drv;
|
||||
}
|
||||
}
|
||||
if (rc)
|
||||
put_device(dev);
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int tifm_device_remove(struct device *dev)
|
||||
{
|
||||
struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev);
|
||||
struct tifm_driver *drv = fm_dev->drv;
|
||||
|
||||
if (drv) {
|
||||
if (drv->remove) drv->remove(fm_dev);
|
||||
fm_dev->drv = 0;
|
||||
}
|
||||
|
||||
put_device(dev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int tifm_register_driver(struct tifm_driver *drv)
|
||||
{
|
||||
drv->driver.bus = &tifm_bus_type;
|
||||
drv->driver.probe = tifm_device_probe;
|
||||
drv->driver.remove = tifm_device_remove;
|
||||
|
||||
return driver_register(&drv->driver);
|
||||
}
|
||||
EXPORT_SYMBOL(tifm_register_driver);
|
||||
|
||||
void tifm_unregister_driver(struct tifm_driver *drv)
|
||||
{
|
||||
driver_unregister(&drv->driver);
|
||||
}
|
||||
EXPORT_SYMBOL(tifm_unregister_driver);
|
||||
|
||||
static int __init tifm_init(void)
|
||||
{
|
||||
int rc = bus_register(&tifm_bus_type);
|
||||
|
||||
if (!rc) {
|
||||
rc = class_register(&tifm_adapter_class);
|
||||
if (rc)
|
||||
bus_unregister(&tifm_bus_type);
|
||||
}
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static void __exit tifm_exit(void)
|
||||
{
|
||||
class_unregister(&tifm_adapter_class);
|
||||
bus_unregister(&tifm_bus_type);
|
||||
}
|
||||
|
||||
subsys_initcall(tifm_init);
|
||||
module_exit(tifm_exit);
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_AUTHOR("Alex Dubov");
|
||||
MODULE_DESCRIPTION("TI FlashMedia core driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_VERSION(DRIVER_VERSION);
|
||||
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,158 @@
|
||||
/*
|
||||
* tifm.h - TI FlashMedia driver
|
||||
*
|
||||
* Copyright (C) 2006 Alex Dubov <oakad@yahoo.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef _TIFM_H
|
||||
#define _TIFM_H
|
||||
|
||||
#include <linux/spinlock.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/wait.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/pci.h>
|
||||
|
||||
/* Host registers (relative to pci base address): */
|
||||
enum {
|
||||
FM_SET_INTERRUPT_ENABLE = 0x008,
|
||||
FM_CLEAR_INTERRUPT_ENABLE = 0x00c,
|
||||
FM_INTERRUPT_STATUS = 0x014 };
|
||||
|
||||
/* Socket registers (relative to socket base address): */
|
||||
enum {
|
||||
SOCK_CONTROL = 0x004,
|
||||
SOCK_PRESENT_STATE = 0x008,
|
||||
SOCK_DMA_ADDRESS = 0x00c,
|
||||
SOCK_DMA_CONTROL = 0x010,
|
||||
SOCK_DMA_FIFO_INT_ENABLE_SET = 0x014,
|
||||
SOCK_DMA_FIFO_INT_ENABLE_CLEAR = 0x018,
|
||||
SOCK_DMA_FIFO_STATUS = 0x020,
|
||||
SOCK_FIFO_CONTROL = 0x024,
|
||||
SOCK_FIFO_PAGE_SIZE = 0x028,
|
||||
SOCK_MMCSD_COMMAND = 0x104,
|
||||
SOCK_MMCSD_ARG_LOW = 0x108,
|
||||
SOCK_MMCSD_ARG_HIGH = 0x10c,
|
||||
SOCK_MMCSD_CONFIG = 0x110,
|
||||
SOCK_MMCSD_STATUS = 0x114,
|
||||
SOCK_MMCSD_INT_ENABLE = 0x118,
|
||||
SOCK_MMCSD_COMMAND_TO = 0x11c,
|
||||
SOCK_MMCSD_DATA_TO = 0x120,
|
||||
SOCK_MMCSD_DATA = 0x124,
|
||||
SOCK_MMCSD_BLOCK_LEN = 0x128,
|
||||
SOCK_MMCSD_NUM_BLOCKS = 0x12c,
|
||||
SOCK_MMCSD_BUFFER_CONFIG = 0x130,
|
||||
SOCK_MMCSD_SPI_CONFIG = 0x134,
|
||||
SOCK_MMCSD_SDIO_MODE_CONFIG = 0x138,
|
||||
SOCK_MMCSD_RESPONSE = 0x144,
|
||||
SOCK_MMCSD_SDIO_SR = 0x164,
|
||||
SOCK_MMCSD_SYSTEM_CONTROL = 0x168,
|
||||
SOCK_MMCSD_SYSTEM_STATUS = 0x16c,
|
||||
SOCK_MS_COMMAND = 0x184,
|
||||
SOCK_MS_DATA = 0x188,
|
||||
SOCK_MS_STATUS = 0x18c,
|
||||
SOCK_MS_SYSTEM = 0x190,
|
||||
SOCK_FIFO_ACCESS = 0x200 };
|
||||
|
||||
|
||||
#define TIFM_IRQ_ENABLE 0x80000000
|
||||
#define TIFM_IRQ_SOCKMASK 0x00000001
|
||||
#define TIFM_IRQ_CARDMASK 0x00000100
|
||||
#define TIFM_IRQ_FIFOMASK 0x00010000
|
||||
#define TIFM_IRQ_SETALL 0xffffffff
|
||||
#define TIFM_IRQ_SETALLSOCK 0x0000000f
|
||||
|
||||
#define TIFM_CTRL_LED 0x00000040
|
||||
#define TIFM_CTRL_FAST_CLK 0x00000100
|
||||
|
||||
#define TIFM_SOCK_STATE_OCCUPIED 0x00000008
|
||||
#define TIFM_SOCK_STATE_POWERED 0x00000080
|
||||
|
||||
#define TIFM_FIFO_ENABLE 0x00000001 /* Meaning of this constant is unverified */
|
||||
#define TIFM_FIFO_INT_SETALL 0x0000ffff
|
||||
#define TIFM_FIFO_INTMASK 0x00000005 /* Meaning of this constant is unverified */
|
||||
|
||||
#define TIFM_DMA_RESET 0x00000002 /* Meaning of this constant is unverified */
|
||||
#define TIFM_DMA_TX 0x00008000 /* Meaning of this constant is unverified */
|
||||
#define TIFM_DMA_EN 0x00000001 /* Meaning of this constant is unverified */
|
||||
|
||||
typedef enum {FM_NULL = 0, FM_XD = 0x01, FM_MS = 0x02, FM_SD = 0x03} tifm_media_id;
|
||||
|
||||
struct tifm_driver;
|
||||
struct tifm_dev {
|
||||
char __iomem *addr;
|
||||
spinlock_t lock;
|
||||
tifm_media_id media_id;
|
||||
char wq_name[KOBJ_NAME_LEN];
|
||||
struct workqueue_struct *wq;
|
||||
|
||||
unsigned int (*signal_irq)(struct tifm_dev *sock,
|
||||
unsigned int sock_irq_status);
|
||||
|
||||
struct tifm_driver *drv;
|
||||
struct device dev;
|
||||
};
|
||||
|
||||
struct tifm_driver {
|
||||
tifm_media_id *id_table;
|
||||
int (*probe)(struct tifm_dev *dev);
|
||||
void (*remove)(struct tifm_dev *dev);
|
||||
|
||||
struct device_driver driver;
|
||||
};
|
||||
|
||||
struct tifm_adapter {
|
||||
char __iomem *addr;
|
||||
unsigned int irq_status;
|
||||
unsigned int insert_mask;
|
||||
unsigned int remove_mask;
|
||||
spinlock_t lock;
|
||||
unsigned int id;
|
||||
unsigned int max_sockets;
|
||||
char wq_name[KOBJ_NAME_LEN];
|
||||
unsigned int inhibit_new_cards;
|
||||
struct workqueue_struct *wq;
|
||||
struct work_struct media_inserter;
|
||||
struct work_struct media_remover;
|
||||
struct tifm_dev **sockets;
|
||||
struct class_device cdev;
|
||||
struct device *dev;
|
||||
|
||||
void (*eject)(struct tifm_adapter *fm, struct tifm_dev *sock);
|
||||
};
|
||||
|
||||
struct tifm_adapter *tifm_alloc_adapter(void);
|
||||
void tifm_free_device(struct device *dev);
|
||||
void tifm_free_adapter(struct tifm_adapter *fm);
|
||||
int tifm_add_adapter(struct tifm_adapter *fm);
|
||||
void tifm_remove_adapter(struct tifm_adapter *fm);
|
||||
struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm, unsigned int id);
|
||||
int tifm_register_driver(struct tifm_driver *drv);
|
||||
void tifm_unregister_driver(struct tifm_driver *drv);
|
||||
void tifm_eject(struct tifm_dev *sock);
|
||||
int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
|
||||
int direction);
|
||||
void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
|
||||
int direction);
|
||||
|
||||
|
||||
static inline void *tifm_get_drvdata(struct tifm_dev *dev)
|
||||
{
|
||||
return dev_get_drvdata(&dev->dev);
|
||||
}
|
||||
|
||||
static inline void tifm_set_drvdata(struct tifm_dev *dev, void *data)
|
||||
{
|
||||
dev_set_drvdata(&dev->dev, data);
|
||||
}
|
||||
|
||||
struct tifm_device_id {
|
||||
tifm_media_id media_id;
|
||||
};
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user