diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/mmc/host.h')
-rw-r--r-- | ANDROID_3.4.5/include/linux/mmc/host.h | 486 |
1 files changed, 0 insertions, 486 deletions
diff --git a/ANDROID_3.4.5/include/linux/mmc/host.h b/ANDROID_3.4.5/include/linux/mmc/host.h deleted file mode 100644 index 39c2def3..00000000 --- a/ANDROID_3.4.5/include/linux/mmc/host.h +++ /dev/null @@ -1,486 +0,0 @@ -/* - * linux/include/linux/mmc/host.h - * - * 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. - * - * Host driver specific definitions. - */ -#ifndef LINUX_MMC_HOST_H -#define LINUX_MMC_HOST_H - -#include <linux/leds.h> -#include <linux/sched.h> -#include <linux/device.h> -#include <linux/fault-inject.h> -#include <linux/wakelock.h> -#include <linux/semaphore.h> - -#include <linux/mmc/core.h> -#include <linux/mmc/pm.h> - -struct mmc_ios { - unsigned int clock; /* clock rate */ - unsigned short vdd; - -/* vdd stores the bit number of the selected voltage range from below. */ - - unsigned char bus_mode; /* command output mode */ - -#define MMC_BUSMODE_OPENDRAIN 1 -#define MMC_BUSMODE_PUSHPULL 2 - - unsigned char chip_select; /* SPI chip select */ - -#define MMC_CS_DONTCARE 0 -#define MMC_CS_HIGH 1 -#define MMC_CS_LOW 2 - - unsigned char power_mode; /* power supply mode */ - -#define MMC_POWER_OFF 0 -#define MMC_POWER_UP 1 -#define MMC_POWER_ON 2 - - unsigned char bus_width; /* data bus width */ - -#define MMC_BUS_WIDTH_1 0 -#define MMC_BUS_WIDTH_4 2 -#define MMC_BUS_WIDTH_8 3 - - unsigned char timing; /* timing specification used */ - -#define MMC_TIMING_LEGACY 0 -#define MMC_TIMING_MMC_HS 1 -#define MMC_TIMING_SD_HS 2 -#define MMC_TIMING_UHS_SDR12 MMC_TIMING_LEGACY -#define MMC_TIMING_UHS_SDR25 MMC_TIMING_SD_HS -#define MMC_TIMING_UHS_SDR50 3 -#define MMC_TIMING_UHS_SDR104 4 -#define MMC_TIMING_UHS_DDR50 5 -#define MMC_TIMING_MMC_HS200 6 - -#define MMC_SDR_MODE 0 -#define MMC_1_2V_DDR_MODE 1 -#define MMC_1_8V_DDR_MODE 2 -#define MMC_1_2V_SDR_MODE 3 -#define MMC_1_8V_SDR_MODE 4 - - unsigned char signal_voltage; /* signalling voltage (1.8V or 3.3V) */ - -#define MMC_SIGNAL_VOLTAGE_330 0 -#define MMC_SIGNAL_VOLTAGE_180 1 -#define MMC_SIGNAL_VOLTAGE_120 2 - - unsigned char drv_type; /* driver type (A, B, C, D) */ - -#define MMC_SET_DRIVER_TYPE_B 0 -#define MMC_SET_DRIVER_TYPE_A 1 -#define MMC_SET_DRIVER_TYPE_C 2 -#define MMC_SET_DRIVER_TYPE_D 3 -}; - -struct mmc_host_ops { - /* - * 'enable' is called when the host is claimed and 'disable' is called - * when the host is released. 'enable' and 'disable' are deprecated. - */ - int (*enable)(struct mmc_host *host); - int (*disable)(struct mmc_host *host); - /* - * It is optional for the host to implement pre_req and post_req in - * order to support double buffering of requests (prepare one - * request while another request is active). - * pre_req() must always be followed by a post_req(). - * To undo a call made to pre_req(), call post_req() with - * a nonzero err condition. - */ - void (*post_req)(struct mmc_host *host, struct mmc_request *req, - int err); - void (*pre_req)(struct mmc_host *host, struct mmc_request *req, - bool is_first_req); - void (*request)(struct mmc_host *host, struct mmc_request *req); - /* - * Avoid calling these three functions too often or in a "fast path", - * since underlaying controller might implement them in an expensive - * and/or slow way. - * - * Also note that these functions might sleep, so don't call them - * in the atomic contexts! - * - * Return values for the get_ro callback should be: - * 0 for a read/write card - * 1 for a read-only card - * -ENOSYS when not supported (equal to NULL callback) - * or a negative errno value when something bad happened - * - * Return values for the get_cd callback should be: - * 0 for a absent card - * 1 for a present card - * -ENOSYS when not supported (equal to NULL callback) - * or a negative errno value when something bad happened - */ - void (*set_ios)(struct mmc_host *host, struct mmc_ios *ios); - int (*get_ro)(struct mmc_host *host); - int (*get_cd)(struct mmc_host *host); - int (*get_slot_status)(struct mmc_host *host); - void (*dump_host_regs)(struct mmc_host *host); - - void (*enable_sdio_irq)(struct mmc_host *host, int enable); - - /* optional callback for HC quirks */ - void (*init_card)(struct mmc_host *host, struct mmc_card *card); - - int (*start_signal_voltage_switch)(struct mmc_host *host, struct mmc_ios *ios); - - /* The tuning command opcode value is different for SD and eMMC cards */ - int (*execute_tuning)(struct mmc_host *host, u32 opcode); - void (*enable_preset_value)(struct mmc_host *host, bool enable); - int (*select_drive_strength)(unsigned int max_dtr, int host_drv, int card_drv); - void (*hw_reset)(struct mmc_host *host); -}; - -struct mmc_card; -struct device; - -struct mmc_async_req { - /* active mmc request */ - struct mmc_request *mrq; - /* - * Check error status of completed mmc request. - * Returns 0 if success otherwise non zero. - */ - int (*err_check) (struct mmc_card *, struct mmc_async_req *); -}; - -struct mmc_hotplug { - unsigned int irq; - void *handler_priv; -}; - -struct mmc_host { - struct device *parent; - struct device class_dev; - int index; - const struct mmc_host_ops *ops; - unsigned int f_min; - unsigned int f_max; - unsigned int f_init; - u32 ocr_avail; - u32 ocr_avail_sdio; /* SDIO-specific OCR */ - u32 ocr_avail_sd; /* SD-specific OCR */ - u32 ocr_avail_mmc; /* MMC-specific OCR */ - struct notifier_block pm_notify; - -#define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */ -#define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */ -#define MMC_VDD_21_22 0x00000200 /* VDD voltage 2.1 ~ 2.2 */ -#define MMC_VDD_22_23 0x00000400 /* VDD voltage 2.2 ~ 2.3 */ -#define MMC_VDD_23_24 0x00000800 /* VDD voltage 2.3 ~ 2.4 */ -#define MMC_VDD_24_25 0x00001000 /* VDD voltage 2.4 ~ 2.5 */ -#define MMC_VDD_25_26 0x00002000 /* VDD voltage 2.5 ~ 2.6 */ -#define MMC_VDD_26_27 0x00004000 /* VDD voltage 2.6 ~ 2.7 */ -#define MMC_VDD_27_28 0x00008000 /* VDD voltage 2.7 ~ 2.8 */ -#define MMC_VDD_28_29 0x00010000 /* VDD voltage 2.8 ~ 2.9 */ -#define MMC_VDD_29_30 0x00020000 /* VDD voltage 2.9 ~ 3.0 */ -#define MMC_VDD_30_31 0x00040000 /* VDD voltage 3.0 ~ 3.1 */ -#define MMC_VDD_31_32 0x00080000 /* VDD voltage 3.1 ~ 3.2 */ -#define MMC_VDD_32_33 0x00100000 /* VDD voltage 3.2 ~ 3.3 */ -#define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */ -#define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */ -#define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ - - unsigned long caps; /* Host capabilities */ - -#define MMC_CAP_4_BIT_DATA (1 << 0) /* Can the host do 4 bit transfers */ -#define MMC_CAP_MMC_HIGHSPEED (1 << 1) /* Can do MMC high-speed timing */ -#define MMC_CAP_SD_HIGHSPEED (1 << 2) /* Can do SD high-speed timing */ -#define MMC_CAP_SDIO_IRQ (1 << 3) /* Can signal pending SDIO IRQs */ -#define MMC_CAP_SPI (1 << 4) /* Talks only SPI protocols */ -#define MMC_CAP_NEEDS_POLL (1 << 5) /* Needs polling for card-detection */ -#define MMC_CAP_8_BIT_DATA (1 << 6) /* Can the host do 8 bit transfers */ - -#define MMC_CAP_NONREMOVABLE (1 << 8) /* Nonremovable e.g. eMMC */ -#define MMC_CAP_WAIT_WHILE_BUSY (1 << 9) /* Waits while card is busy */ -#define MMC_CAP_ERASE (1 << 10) /* Allow erase/trim commands */ -#define MMC_CAP_1_8V_DDR (1 << 11) /* can support */ - /* DDR mode at 1.8V */ -#define MMC_CAP_1_2V_DDR (1 << 12) /* can support */ - /* DDR mode at 1.2V */ -#define MMC_CAP_POWER_OFF_CARD (1 << 13) /* Can power off after boot */ -#define MMC_CAP_BUS_WIDTH_TEST (1 << 14) /* CMD14/CMD19 bus width ok */ -#define MMC_CAP_UHS_SDR12 (1 << 15) /* Host supports UHS SDR12 mode */ -#define MMC_CAP_UHS_SDR25 (1 << 16) /* Host supports UHS SDR25 mode */ -#define MMC_CAP_UHS_SDR50 (1 << 17) /* Host supports UHS SDR50 mode */ -#define MMC_CAP_UHS_SDR104 (1 << 18) /* Host supports UHS SDR104 mode */ -#define MMC_CAP_UHS_DDR50 (1 << 19) /* Host supports UHS DDR50 mode */ -#define MMC_CAP_SET_XPC_330 (1 << 20) /* Host supports >150mA current at 3.3V */ -#define MMC_CAP_SET_XPC_300 (1 << 21) /* Host supports >150mA current at 3.0V */ -#define MMC_CAP_SET_XPC_180 (1 << 22) /* Host supports >150mA current at 1.8V */ -#define MMC_CAP_DRIVER_TYPE_A (1 << 23) /* Host supports Driver Type A */ -#define MMC_CAP_DRIVER_TYPE_C (1 << 24) /* Host supports Driver Type C */ -#define MMC_CAP_DRIVER_TYPE_D (1 << 25) /* Host supports Driver Type D */ -#define MMC_CAP_MAX_CURRENT_200 (1 << 26) /* Host max current limit is 200mA */ -#define MMC_CAP_MAX_CURRENT_400 (1 << 27) /* Host max current limit is 400mA */ -#define MMC_CAP_MAX_CURRENT_600 (1 << 28) /* Host max current limit is 600mA */ -#define MMC_CAP_MAX_CURRENT_800 (1 << 29) /* Host max current limit is 800mA */ -#define MMC_CAP_CMD23 (1 << 30) /* CMD23 supported. */ -#define MMC_CAP_HW_RESET (1 << 31) /* Hardware reset */ - - unsigned int caps2; /* More host capabilities */ - -#define MMC_CAP2_BOOTPART_NOACC (1 << 0) /* Boot partition no access */ -#define MMC_CAP2_CACHE_CTRL (1 << 1) /* Allow cache control */ -#define MMC_CAP2_POWEROFF_NOTIFY (1 << 2) /* Notify poweroff supported */ -#define MMC_CAP2_NO_MULTI_READ (1 << 3) /* Multiblock reads don't work */ -#define MMC_CAP2_NO_SLEEP_CMD (1 << 4) /* Don't allow sleep command */ -#define MMC_CAP2_HS200_1_8V_SDR (1 << 5) /* can support */ -#define MMC_CAP2_HS200_1_2V_SDR (1 << 6) /* can support */ -#define MMC_CAP2_HS200 (MMC_CAP2_HS200_1_8V_SDR | \ - MMC_CAP2_HS200_1_2V_SDR) -#define MMC_CAP2_BROKEN_VOLTAGE (1 << 7) /* Use the broken voltage */ -#define MMC_CAP2_DETECT_ON_ERR (1 << 8) /* On I/O err check card removal */ -#define MMC_CAP2_HC_ERASE_SZ (1 << 9) /* High-capacity erase size */ - - mmc_pm_flag_t pm_caps; /* supported pm features */ - unsigned int power_notify_type; -#define MMC_HOST_PW_NOTIFY_NONE 0 -#define MMC_HOST_PW_NOTIFY_SHORT 1 -#define MMC_HOST_PW_NOTIFY_LONG 2 - -#ifdef CONFIG_MMC_CLKGATE - int clk_requests; /* internal reference counter */ - unsigned int clk_delay; /* number of MCI clk hold cycles */ - bool clk_gated; /* clock gated */ - struct delayed_work clk_gate_work; /* delayed clock gate */ - unsigned int clk_old; /* old clock value cache */ - spinlock_t clk_lock; /* lock for clk fields */ - struct mutex clk_gate_mutex; /* mutex for clock gating */ - struct device_attribute clkgate_delay_attr; - unsigned long clkgate_delay; -#endif - - /* host specific block data */ - unsigned int max_seg_size; /* see blk_queue_max_segment_size */ - unsigned short max_segs; /* see blk_queue_max_segments */ - unsigned short unused; - unsigned int max_req_size; /* maximum number of bytes in one req */ - unsigned int max_blk_size; /* maximum size of one mmc block */ - unsigned int max_blk_count; /* maximum number of blocks in one req */ - unsigned int max_discard_to; /* max. discard timeout in ms */ - - /* private data */ - spinlock_t lock; /* lock for claim and bus ops */ - - struct mmc_ios ios; /* current io bus settings */ - u32 ocr; /* the current OCR setting */ - - /* group bitfields together to minimize padding */ - unsigned int use_spi_crc:1; - unsigned int claimed:1; /* host exclusively claimed */ - unsigned int bus_dead:1; /* bus has been released */ -#ifdef CONFIG_MMC_DEBUG - unsigned int removed:1; /* host is being removed */ -#endif - - int rescan_disable; /* disable card detection */ - - struct mmc_card *card; /* device attached to this host */ - - wait_queue_head_t wq; - struct task_struct *claimer; /* task that has host claimed */ - int claim_cnt; /* "claim" nesting count */ - - struct delayed_work detect; - struct wake_lock detect_wake_lock; - int detect_change; /* card detect flag */ - struct mmc_hotplug hotplug; - - const struct mmc_bus_ops *bus_ops; /* current bus driver */ - unsigned int bus_refs; /* reference counter */ - - unsigned int bus_resume_flags; -#define MMC_BUSRESUME_MANUAL_RESUME (1 << 0) -#define MMC_BUSRESUME_NEEDS_RESUME (1 << 1) - - unsigned int sdio_irqs; - struct task_struct *sdio_irq_thread; - bool sdio_irq_pending; - atomic_t sdio_irq_thread_abort; - - mmc_pm_flag_t pm_flags; /* requested pm features */ - -#ifdef CONFIG_LEDS_TRIGGERS - struct led_trigger *led; /* activity led */ -#endif - -#ifdef CONFIG_REGULATOR - bool regulator_enabled; /* regulator state */ -#endif - - struct dentry *debugfs_root; - - struct mmc_async_req *areq; /* active async req */ - -#ifdef CONFIG_FAIL_MMC_REQUEST - struct fault_attr fail_mmc_request; -#endif - - unsigned int actual_clock; /* Actual HC clock rate */ - -#ifdef CONFIG_MMC_EMBEDDED_SDIO - struct { - struct sdio_cis *cis; - struct sdio_cccr *cccr; - struct sdio_embedded_func *funcs; - int num_funcs; - } embedded_sdio_data; -#endif - -#ifdef CONFIG_MMC_UNSAFE_RESUME - /* Use to record if the card attath staus change in suspend mode*/ - int card_attath_status; - -#define card_attach_status_change 1 -#define card_attach_status_unchange 0 -#endif - /*Use to enable scan retry when request or cmd fail*/ - int scan_retry; - bool card_scan_status; /*use to record if the card scan have done and card init OK 0:fail 1:OK*/ - struct semaphore req_sema; /*use to handle request asynchronous, to prevent issue command in the same time*/ - int wmt_host_index; /*use to identify the host number*/ - - unsigned long private[0] ____cacheline_aligned; -}; - -extern struct mmc_host *mmc_alloc_host(int extra, struct device *); -extern int mmc_add_host(struct mmc_host *, bool); -extern void mmc_remove_host(struct mmc_host *); -extern void mmc_free_host(struct mmc_host *); - -#ifdef CONFIG_MMC_EMBEDDED_SDIO -extern void mmc_set_embedded_sdio_data(struct mmc_host *host, - struct sdio_cis *cis, - struct sdio_cccr *cccr, - struct sdio_embedded_func *funcs, - int num_funcs); -#endif - -static inline void *mmc_priv(struct mmc_host *host) -{ - return (void *)host->private; -} - -#define mmc_host_is_spi(host) ((host)->caps & MMC_CAP_SPI) - -#define mmc_dev(x) ((x)->parent) -#define mmc_classdev(x) (&(x)->class_dev) -#define mmc_hostname(x) (dev_name(&(x)->class_dev)) -#define mmc_bus_needs_resume(host) ((host)->bus_resume_flags & MMC_BUSRESUME_NEEDS_RESUME) -#define mmc_bus_manual_resume(host) ((host)->bus_resume_flags & MMC_BUSRESUME_MANUAL_RESUME) - -static inline void mmc_set_bus_resume_policy(struct mmc_host *host, int manual) -{ - if (manual) - host->bus_resume_flags |= MMC_BUSRESUME_MANUAL_RESUME; - else - host->bus_resume_flags &= ~MMC_BUSRESUME_MANUAL_RESUME; -} - -extern int mmc_resume_bus(struct mmc_host *host); - -extern int mmc_suspend_host(struct mmc_host *); -extern int mmc_resume_host(struct mmc_host *); - -extern int mmc_power_save_host(struct mmc_host *host); -extern int mmc_power_restore_host(struct mmc_host *host); - -extern void mmc_detect_change(struct mmc_host *, unsigned long delay); -extern void mmc_request_done(struct mmc_host *, struct mmc_request *); -extern void mmc_force_remove_card(struct mmc_host *host); - -extern int mmc_cache_ctrl(struct mmc_host *, u8); - -static inline void mmc_signal_sdio_irq(struct mmc_host *host) -{ - host->ops->enable_sdio_irq(host, 0); - host->sdio_irq_pending = true; - wake_up_process(host->sdio_irq_thread); -} - -struct regulator; - -#ifdef CONFIG_REGULATOR -int mmc_regulator_get_ocrmask(struct regulator *supply); -int mmc_regulator_set_ocr(struct mmc_host *mmc, - struct regulator *supply, - unsigned short vdd_bit); -#else -static inline int mmc_regulator_get_ocrmask(struct regulator *supply) -{ - return 0; -} - -static inline int mmc_regulator_set_ocr(struct mmc_host *mmc, - struct regulator *supply, - unsigned short vdd_bit) -{ - return 0; -} -#endif - -int mmc_card_awake(struct mmc_host *host); -int mmc_card_sleep(struct mmc_host *host); -int mmc_card_can_sleep(struct mmc_host *host); - -int mmc_pm_notify(struct notifier_block *notify_block, unsigned long, void *); - -/* Module parameter */ -extern bool mmc_assume_removable; - -static inline int mmc_card_is_removable(struct mmc_host *host) -{ - return !(host->caps & MMC_CAP_NONREMOVABLE) && mmc_assume_removable; -} - -static inline int mmc_card_keep_power(struct mmc_host *host) -{ - return host->pm_flags & MMC_PM_KEEP_POWER; -} - -static inline int mmc_card_wake_sdio_irq(struct mmc_host *host) -{ - return host->pm_flags & MMC_PM_WAKE_SDIO_IRQ; -} - -static inline int mmc_host_cmd23(struct mmc_host *host) -{ - return host->caps & MMC_CAP_CMD23; -} - -static inline int mmc_boot_partition_access(struct mmc_host *host) -{ - return !(host->caps2 & MMC_CAP2_BOOTPART_NOACC); -} - -#ifdef CONFIG_MMC_CLKGATE -void mmc_host_clk_hold(struct mmc_host *host); -void mmc_host_clk_release(struct mmc_host *host); -unsigned int mmc_host_clk_rate(struct mmc_host *host); - -#else -static inline void mmc_host_clk_hold(struct mmc_host *host) -{ -} - -static inline void mmc_host_clk_release(struct mmc_host *host) -{ -} - -static inline unsigned int mmc_host_clk_rate(struct mmc_host *host) -{ - return host->ios.clock; -} -#endif -#endif /* LINUX_MMC_HOST_H */ |