Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Pierre Ossman | aaac1b4 | 2007-02-28 15:33:10 +0100 | [diff] [blame] | 2 | * linux/drivers/mmc/core/core.h |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
| 4 | * Copyright (C) 2003 Russell King, All Rights Reserved. |
Pierre Ossman | da7fbe5 | 2006-12-24 22:46:55 +0100 | [diff] [blame] | 5 | * Copyright 2007 Pierre Ossman |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | */ |
Pierre Ossman | da7fbe5 | 2006-12-24 22:46:55 +0100 | [diff] [blame] | 11 | #ifndef _MMC_CORE_CORE_H |
| 12 | #define _MMC_CORE_CORE_H |
Russell King | 00b137c | 2005-08-19 09:41:24 +0100 | [diff] [blame] | 13 | |
Pierre Ossman | da7fbe5 | 2006-12-24 22:46:55 +0100 | [diff] [blame] | 14 | #include <linux/delay.h> |
Pierre Ossman | 7104e2d | 2006-10-04 02:15:41 -0700 | [diff] [blame] | 15 | |
Pierre Ossman | da7fbe5 | 2006-12-24 22:46:55 +0100 | [diff] [blame] | 16 | #define MMC_CMD_RETRIES 3 |
| 17 | |
Pierre Ossman | 7ea239d | 2006-12-31 00:11:32 +0100 | [diff] [blame^] | 18 | struct mmc_bus_ops { |
| 19 | void (*remove)(struct mmc_host *); |
| 20 | void (*detect)(struct mmc_host *); |
| 21 | }; |
| 22 | |
| 23 | void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops); |
| 24 | void mmc_detach_bus(struct mmc_host *host); |
| 25 | |
| 26 | void __mmc_release_bus(struct mmc_host *host); |
| 27 | |
| 28 | static inline void mmc_bus_get(struct mmc_host *host) |
| 29 | { |
| 30 | unsigned long flags; |
| 31 | |
| 32 | spin_lock_irqsave(&host->lock, flags); |
| 33 | host->bus_refs++; |
| 34 | spin_unlock_irqrestore(&host->lock, flags); |
| 35 | } |
| 36 | |
| 37 | static inline void mmc_bus_put(struct mmc_host *host) |
| 38 | { |
| 39 | unsigned long flags; |
| 40 | |
| 41 | spin_lock_irqsave(&host->lock, flags); |
| 42 | host->bus_refs--; |
| 43 | if ((host->bus_refs == 0) && host->bus_ops) |
| 44 | __mmc_release_bus(host); |
| 45 | spin_unlock_irqrestore(&host->lock, flags); |
| 46 | } |
| 47 | |
Pierre Ossman | da7fbe5 | 2006-12-24 22:46:55 +0100 | [diff] [blame] | 48 | void mmc_set_chip_select(struct mmc_host *host, int mode); |
Pierre Ossman | 7ea239d | 2006-12-31 00:11:32 +0100 | [diff] [blame^] | 49 | void mmc_set_clock(struct mmc_host *host, unsigned int hz); |
| 50 | void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode); |
| 51 | void mmc_set_bus_width(struct mmc_host *host, unsigned int width); |
| 52 | u32 mmc_select_voltage(struct mmc_host *host, u32 ocr); |
| 53 | void mmc_set_timing(struct mmc_host *host, unsigned int timing); |
| 54 | |
| 55 | struct mmc_card *mmc_alloc_card(struct mmc_host *host); |
Pierre Ossman | da7fbe5 | 2006-12-24 22:46:55 +0100 | [diff] [blame] | 56 | |
| 57 | static inline void mmc_delay(unsigned int ms) |
| 58 | { |
| 59 | if (ms < 1000 / HZ) { |
| 60 | cond_resched(); |
| 61 | mdelay(ms); |
| 62 | } else { |
| 63 | msleep(ms); |
| 64 | } |
| 65 | } |
| 66 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | #endif |
Pierre Ossman | da7fbe5 | 2006-12-24 22:46:55 +0100 | [diff] [blame] | 68 | |