Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/include/linux/mmc/host.h |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * published by the Free Software Foundation. |
| 7 | * |
| 8 | * Host driver specific definitions. |
| 9 | */ |
| 10 | #ifndef LINUX_MMC_HOST_H |
| 11 | #define LINUX_MMC_HOST_H |
| 12 | |
Pierre Ossman | af8350c | 2007-09-24 07:15:48 +0200 | [diff] [blame] | 13 | #include <linux/leds.h> |
Alexey Dobriyan | d43c36d | 2009-10-07 17:09:06 +0400 | [diff] [blame] | 14 | #include <linux/sched.h> |
Paul Gortmaker | 313162d | 2012-01-30 11:46:54 -0500 | [diff] [blame] | 15 | #include <linux/device.h> |
Per Forlin | 1b676f7 | 2011-08-19 14:52:37 +0200 | [diff] [blame] | 16 | #include <linux/fault-inject.h> |
Colin Cross | 26d2321 | 2011-09-07 17:28:58 -0700 | [diff] [blame] | 17 | #include <linux/wakelock.h> |
Pierre Ossman | af8350c | 2007-09-24 07:15:48 +0200 | [diff] [blame] | 18 | |
Pierre Ossman | aaac1b4 | 2007-02-28 15:33:10 +0100 | [diff] [blame] | 19 | #include <linux/mmc/core.h> |
Nicolas Pitre | da68c4e | 2010-03-05 13:43:31 -0800 | [diff] [blame] | 20 | #include <linux/mmc/pm.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | |
| 22 | struct mmc_ios { |
| 23 | unsigned int clock; /* clock rate */ |
Sujit Reddy Thumma | d3618e8 | 2013-02-14 08:13:52 +0530 | [diff] [blame] | 24 | unsigned int old_rate; /* saved clock rate */ |
| 25 | unsigned long clk_ts; /* time stamp of last updated clock */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | unsigned short vdd; |
| 27 | |
Philip Langdale | 4be34c9 | 2007-03-11 17:15:15 -0700 | [diff] [blame] | 28 | /* vdd stores the bit number of the selected voltage range from below. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | |
| 30 | unsigned char bus_mode; /* command output mode */ |
| 31 | |
| 32 | #define MMC_BUSMODE_OPENDRAIN 1 |
| 33 | #define MMC_BUSMODE_PUSHPULL 2 |
| 34 | |
Pierre Ossman | 865e9f1 | 2005-09-03 16:45:02 +0100 | [diff] [blame] | 35 | unsigned char chip_select; /* SPI chip select */ |
| 36 | |
| 37 | #define MMC_CS_DONTCARE 0 |
| 38 | #define MMC_CS_HIGH 1 |
| 39 | #define MMC_CS_LOW 2 |
| 40 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | unsigned char power_mode; /* power supply mode */ |
| 42 | |
| 43 | #define MMC_POWER_OFF 0 |
| 44 | #define MMC_POWER_UP 1 |
| 45 | #define MMC_POWER_ON 2 |
Pierre Ossman | f218278 | 2005-09-06 15:18:55 -0700 | [diff] [blame] | 46 | |
| 47 | unsigned char bus_width; /* data bus width */ |
| 48 | |
| 49 | #define MMC_BUS_WIDTH_1 0 |
| 50 | #define MMC_BUS_WIDTH_4 2 |
Jarkko Lavinen | b30f8af | 2008-11-17 14:35:21 +0200 | [diff] [blame] | 51 | #define MMC_BUS_WIDTH_8 3 |
Pierre Ossman | cd9277c | 2007-02-18 12:07:47 +0100 | [diff] [blame] | 52 | |
| 53 | unsigned char timing; /* timing specification used */ |
| 54 | |
| 55 | #define MMC_TIMING_LEGACY 0 |
| 56 | #define MMC_TIMING_MMC_HS 1 |
| 57 | #define MMC_TIMING_SD_HS 2 |
Arindam Nath | 49c468f | 2011-05-05 12:19:01 +0530 | [diff] [blame] | 58 | #define MMC_TIMING_UHS_SDR12 MMC_TIMING_LEGACY |
| 59 | #define MMC_TIMING_UHS_SDR25 MMC_TIMING_SD_HS |
| 60 | #define MMC_TIMING_UHS_SDR50 3 |
| 61 | #define MMC_TIMING_UHS_SDR104 4 |
| 62 | #define MMC_TIMING_UHS_DDR50 5 |
Girish K S | a4924c7 | 2012-01-11 14:04:52 -0500 | [diff] [blame] | 63 | #define MMC_TIMING_MMC_HS200 6 |
Adrian Hunter | 0f8d8ea | 2010-08-24 13:20:26 +0300 | [diff] [blame] | 64 | |
Adrian Hunter | 0f8d8ea | 2010-08-24 13:20:26 +0300 | [diff] [blame] | 65 | #define MMC_SDR_MODE 0 |
Adrian Hunter | 49e3b5a | 2010-10-11 12:43:50 +0300 | [diff] [blame] | 66 | #define MMC_1_2V_DDR_MODE 1 |
| 67 | #define MMC_1_8V_DDR_MODE 2 |
Girish K S | a4924c7 | 2012-01-11 14:04:52 -0500 | [diff] [blame] | 68 | #define MMC_1_2V_SDR_MODE 3 |
| 69 | #define MMC_1_8V_SDR_MODE 4 |
Arindam Nath | f2119df | 2011-05-05 12:18:57 +0530 | [diff] [blame] | 70 | |
| 71 | unsigned char signal_voltage; /* signalling voltage (1.8V or 3.3V) */ |
| 72 | |
| 73 | #define MMC_SIGNAL_VOLTAGE_330 0 |
| 74 | #define MMC_SIGNAL_VOLTAGE_180 1 |
Philip Rakity | 4c4cb17 | 2011-05-13 11:17:18 +0530 | [diff] [blame] | 75 | #define MMC_SIGNAL_VOLTAGE_120 2 |
Arindam Nath | d6d50a1 | 2011-05-05 12:18:59 +0530 | [diff] [blame] | 76 | |
| 77 | unsigned char drv_type; /* driver type (A, B, C, D) */ |
| 78 | |
| 79 | #define MMC_SET_DRIVER_TYPE_B 0 |
| 80 | #define MMC_SET_DRIVER_TYPE_A 1 |
| 81 | #define MMC_SET_DRIVER_TYPE_C 2 |
| 82 | #define MMC_SET_DRIVER_TYPE_D 3 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | }; |
| 84 | |
Sujit Reddy Thumma | 1ed78ab | 2013-04-25 12:39:40 +0530 | [diff] [blame] | 85 | /* states to represent load on the host */ |
| 86 | enum mmc_load { |
| 87 | MMC_LOAD_HIGH, |
| 88 | MMC_LOAD_LOW, |
| 89 | }; |
| 90 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | struct mmc_host_ops { |
Adrian Hunter | 8ea926b | 2009-09-22 16:44:29 -0700 | [diff] [blame] | 92 | /* |
Adrian Hunter | 907d2e7 | 2012-02-29 09:17:21 +0200 | [diff] [blame] | 93 | * 'enable' is called when the host is claimed and 'disable' is called |
| 94 | * when the host is released. 'enable' and 'disable' are deprecated. |
Adrian Hunter | 8ea926b | 2009-09-22 16:44:29 -0700 | [diff] [blame] | 95 | */ |
| 96 | int (*enable)(struct mmc_host *host); |
Adrian Hunter | 907d2e7 | 2012-02-29 09:17:21 +0200 | [diff] [blame] | 97 | int (*disable)(struct mmc_host *host); |
Per Forlin | aa8b683 | 2011-07-01 18:55:22 +0200 | [diff] [blame] | 98 | /* |
| 99 | * It is optional for the host to implement pre_req and post_req in |
| 100 | * order to support double buffering of requests (prepare one |
| 101 | * request while another request is active). |
Per Forlin | 7c8a282 | 2011-08-29 15:35:58 +0200 | [diff] [blame] | 102 | * pre_req() must always be followed by a post_req(). |
| 103 | * To undo a call made to pre_req(), call post_req() with |
| 104 | * a nonzero err condition. |
Per Forlin | aa8b683 | 2011-07-01 18:55:22 +0200 | [diff] [blame] | 105 | */ |
| 106 | void (*post_req)(struct mmc_host *host, struct mmc_request *req, |
| 107 | int err); |
| 108 | void (*pre_req)(struct mmc_host *host, struct mmc_request *req, |
| 109 | bool is_first_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | void (*request)(struct mmc_host *host, struct mmc_request *req); |
Anton Vorontsov | 28f5248 | 2008-06-17 18:17:15 +0400 | [diff] [blame] | 111 | /* |
| 112 | * Avoid calling these three functions too often or in a "fast path", |
| 113 | * since underlaying controller might implement them in an expensive |
| 114 | * and/or slow way. |
| 115 | * |
| 116 | * Also note that these functions might sleep, so don't call them |
| 117 | * in the atomic contexts! |
Anton Vorontsov | 08f80bb | 2008-06-17 18:17:39 +0400 | [diff] [blame] | 118 | * |
| 119 | * Return values for the get_ro callback should be: |
| 120 | * 0 for a read/write card |
| 121 | * 1 for a read-only card |
| 122 | * -ENOSYS when not supported (equal to NULL callback) |
| 123 | * or a negative errno value when something bad happened |
| 124 | * |
Thomas Petazzoni | ee63a7d | 2008-09-02 10:14:13 +0200 | [diff] [blame] | 125 | * Return values for the get_cd callback should be: |
Anton Vorontsov | 08f80bb | 2008-06-17 18:17:39 +0400 | [diff] [blame] | 126 | * 0 for a absent card |
| 127 | * 1 for a present card |
| 128 | * -ENOSYS when not supported (equal to NULL callback) |
| 129 | * or a negative errno value when something bad happened |
Anton Vorontsov | 28f5248 | 2008-06-17 18:17:15 +0400 | [diff] [blame] | 130 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | void (*set_ios)(struct mmc_host *host, struct mmc_ios *ios); |
Pierre Ossman | a00fc09 | 2005-09-06 15:18:52 -0700 | [diff] [blame] | 132 | int (*get_ro)(struct mmc_host *host); |
Anton Vorontsov | 28f5248 | 2008-06-17 18:17:15 +0400 | [diff] [blame] | 133 | int (*get_cd)(struct mmc_host *host); |
| 134 | |
Nicolas Pitre | 17b759a | 2007-07-24 02:09:39 -0400 | [diff] [blame] | 135 | void (*enable_sdio_irq)(struct mmc_host *host, int enable); |
Daniel Mack | 3fcb027 | 2010-04-01 10:03:25 +0200 | [diff] [blame] | 136 | |
| 137 | /* optional callback for HC quirks */ |
| 138 | void (*init_card)(struct mmc_host *host, struct mmc_card *card); |
Arindam Nath | f2119df | 2011-05-05 12:18:57 +0530 | [diff] [blame] | 139 | |
| 140 | int (*start_signal_voltage_switch)(struct mmc_host *host, struct mmc_ios *ios); |
Girish K S | a4924c7 | 2012-01-11 14:04:52 -0500 | [diff] [blame] | 141 | |
| 142 | /* The tuning command opcode value is different for SD and eMMC cards */ |
| 143 | int (*execute_tuning)(struct mmc_host *host, u32 opcode); |
Arindam Nath | 4d55c5a | 2011-05-05 12:19:05 +0530 | [diff] [blame] | 144 | void (*enable_preset_value)(struct mmc_host *host, bool enable); |
Philip Rakity | ca8e99b | 2011-07-06 08:51:32 -0700 | [diff] [blame] | 145 | int (*select_drive_strength)(unsigned int max_dtr, int host_drv, int card_drv); |
Adrian Hunter | b249951 | 2011-08-29 16:42:11 +0300 | [diff] [blame] | 146 | void (*hw_reset)(struct mmc_host *host); |
Sujit Reddy Thumma | 51d57b3 | 2012-10-11 17:17:03 +0530 | [diff] [blame] | 147 | unsigned long (*get_max_frequency)(struct mmc_host *host); |
| 148 | unsigned long (*get_min_frequency)(struct mmc_host *host); |
Sujit Reddy Thumma | 1ed78ab | 2013-04-25 12:39:40 +0530 | [diff] [blame] | 149 | int (*notify_load)(struct mmc_host *, enum mmc_load); |
Konstantin Dorfman | 9b0f5ec | 2013-02-12 13:19:48 +0200 | [diff] [blame] | 150 | int (*stop_request)(struct mmc_host *host); |
| 151 | unsigned int (*get_xfer_remain)(struct mmc_host *host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | }; |
| 153 | |
| 154 | struct mmc_card; |
| 155 | struct device; |
| 156 | |
Per Forlin | aa8b683 | 2011-07-01 18:55:22 +0200 | [diff] [blame] | 157 | struct mmc_async_req { |
| 158 | /* active mmc request */ |
| 159 | struct mmc_request *mrq; |
Konstantin Dorfman | e9382e6 | 2013-03-10 17:39:16 +0200 | [diff] [blame] | 160 | unsigned int cmd_flags; /* copied from struct request */ |
| 161 | |
Per Forlin | aa8b683 | 2011-07-01 18:55:22 +0200 | [diff] [blame] | 162 | /* |
| 163 | * Check error status of completed mmc request. |
| 164 | * Returns 0 if success otherwise non zero. |
| 165 | */ |
| 166 | int (*err_check) (struct mmc_card *, struct mmc_async_req *); |
Konstantin Dorfman | 9b0f5ec | 2013-02-12 13:19:48 +0200 | [diff] [blame] | 167 | /* Reinserts request back to the block layer */ |
| 168 | void (*reinsert_req) (struct mmc_async_req *); |
| 169 | /* update what part of request is not done (packed_fail_idx) */ |
| 170 | int (*update_interrupted_req) (struct mmc_card *, |
| 171 | struct mmc_async_req *); |
Per Forlin | aa8b683 | 2011-07-01 18:55:22 +0200 | [diff] [blame] | 172 | }; |
| 173 | |
Konstantin Dorfman | 69bd0fb | 2012-12-12 16:12:08 +0200 | [diff] [blame] | 174 | /** |
| 175 | * mmc_context_info - synchronization details for mmc context |
| 176 | * @is_done_rcv wake up reason was done request |
| 177 | * @is_new_req wake up reason was new request |
Konstantin Dorfman | 9b0f5ec | 2013-02-12 13:19:48 +0200 | [diff] [blame] | 178 | * @is_waiting_last_req is true, when 1 request running on the bus and |
| 179 | * NULL fetched as second request. MMC_BLK_NEW_REQUEST |
| 180 | * notification will wake up mmc thread from waiting. |
| 181 | * @is_urgent wake up reason was urgent request |
Konstantin Dorfman | 69bd0fb | 2012-12-12 16:12:08 +0200 | [diff] [blame] | 182 | * @wait wait queue |
| 183 | * @lock lock to protect data fields |
| 184 | */ |
| 185 | struct mmc_context_info { |
| 186 | bool is_done_rcv; |
| 187 | bool is_new_req; |
| 188 | bool is_waiting_last_req; |
Konstantin Dorfman | 9b0f5ec | 2013-02-12 13:19:48 +0200 | [diff] [blame] | 189 | bool is_urgent; |
Konstantin Dorfman | 69bd0fb | 2012-12-12 16:12:08 +0200 | [diff] [blame] | 190 | wait_queue_head_t wait; |
| 191 | spinlock_t lock; |
| 192 | }; |
| 193 | |
Guennadi Liakhovetski | b67e198 | 2011-12-25 20:40:03 -0500 | [diff] [blame] | 194 | struct mmc_hotplug { |
| 195 | unsigned int irq; |
| 196 | void *handler_priv; |
| 197 | }; |
| 198 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | struct mmc_host { |
Greg Kroah-Hartman | fcaf71f | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 200 | struct device *parent; |
| 201 | struct device class_dev; |
Russell King | dce7737 | 2005-08-19 09:42:52 +0100 | [diff] [blame] | 202 | int index; |
David Brownell | f57b225 | 2006-09-03 06:43:33 -0700 | [diff] [blame] | 203 | const struct mmc_host_ops *ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | unsigned int f_min; |
| 205 | unsigned int f_max; |
Hein Tibosch | 88ae8b8 | 2010-09-06 09:37:19 +0800 | [diff] [blame] | 206 | unsigned int f_init; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | u32 ocr_avail; |
Takashi Iwai | 8f230f4 | 2010-12-08 10:04:30 +0100 | [diff] [blame] | 208 | u32 ocr_avail_sdio; /* SDIO-specific OCR */ |
| 209 | u32 ocr_avail_sd; /* SD-specific OCR */ |
| 210 | u32 ocr_avail_mmc; /* MMC-specific OCR */ |
Maxim Levitsky | 4c2ef25 | 2010-08-10 18:01:41 -0700 | [diff] [blame] | 211 | struct notifier_block pm_notify; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | |
Philip Langdale | 55556da | 2007-03-16 19:39:00 -0700 | [diff] [blame] | 213 | #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */ |
Pierre Ossman | f74d132 | 2007-02-09 22:49:31 +0100 | [diff] [blame] | 214 | #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */ |
| 215 | #define MMC_VDD_21_22 0x00000200 /* VDD voltage 2.1 ~ 2.2 */ |
| 216 | #define MMC_VDD_22_23 0x00000400 /* VDD voltage 2.2 ~ 2.3 */ |
| 217 | #define MMC_VDD_23_24 0x00000800 /* VDD voltage 2.3 ~ 2.4 */ |
| 218 | #define MMC_VDD_24_25 0x00001000 /* VDD voltage 2.4 ~ 2.5 */ |
| 219 | #define MMC_VDD_25_26 0x00002000 /* VDD voltage 2.5 ~ 2.6 */ |
| 220 | #define MMC_VDD_26_27 0x00004000 /* VDD voltage 2.6 ~ 2.7 */ |
| 221 | #define MMC_VDD_27_28 0x00008000 /* VDD voltage 2.7 ~ 2.8 */ |
| 222 | #define MMC_VDD_28_29 0x00010000 /* VDD voltage 2.8 ~ 2.9 */ |
| 223 | #define MMC_VDD_29_30 0x00020000 /* VDD voltage 2.9 ~ 3.0 */ |
| 224 | #define MMC_VDD_30_31 0x00040000 /* VDD voltage 3.0 ~ 3.1 */ |
| 225 | #define MMC_VDD_31_32 0x00080000 /* VDD voltage 3.1 ~ 3.2 */ |
| 226 | #define MMC_VDD_32_33 0x00100000 /* VDD voltage 3.2 ~ 3.3 */ |
| 227 | #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */ |
| 228 | #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */ |
| 229 | #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ |
| 230 | |
Pierre Ossman | f218278 | 2005-09-06 15:18:55 -0700 | [diff] [blame] | 231 | unsigned long caps; /* Host capabilities */ |
| 232 | |
| 233 | #define MMC_CAP_4_BIT_DATA (1 << 0) /* Can the host do 4 bit transfers */ |
Pierre Ossman | 23af603 | 2008-07-06 01:10:27 +0200 | [diff] [blame] | 234 | #define MMC_CAP_MMC_HIGHSPEED (1 << 1) /* Can do MMC high-speed timing */ |
| 235 | #define MMC_CAP_SD_HIGHSPEED (1 << 2) /* Can do SD high-speed timing */ |
| 236 | #define MMC_CAP_SDIO_IRQ (1 << 3) /* Can signal pending SDIO IRQs */ |
| 237 | #define MMC_CAP_SPI (1 << 4) /* Talks only SPI protocols */ |
| 238 | #define MMC_CAP_NEEDS_POLL (1 << 5) /* Needs polling for card-detection */ |
Jarkko Lavinen | b30f8af | 2008-11-17 14:35:21 +0200 | [diff] [blame] | 239 | #define MMC_CAP_8_BIT_DATA (1 << 6) /* Can the host do 8 bit transfers */ |
Adrian Hunter | 907d2e7 | 2012-02-29 09:17:21 +0200 | [diff] [blame] | 240 | |
Adrian Hunter | 9feae24 | 2009-09-22 16:44:32 -0700 | [diff] [blame] | 241 | #define MMC_CAP_NONREMOVABLE (1 << 8) /* Nonremovable e.g. eMMC */ |
Jarkko Lavinen | b1ebe38 | 2009-09-22 16:44:34 -0700 | [diff] [blame] | 242 | #define MMC_CAP_WAIT_WHILE_BUSY (1 << 9) /* Waits while card is busy */ |
Adrian Hunter | dfe86cb | 2010-08-11 14:17:46 -0700 | [diff] [blame] | 243 | #define MMC_CAP_ERASE (1 << 10) /* Allow erase/trim commands */ |
Hanumath Prasad | dfc13e8 | 2010-09-30 17:37:23 -0400 | [diff] [blame] | 244 | #define MMC_CAP_1_8V_DDR (1 << 11) /* can support */ |
| 245 | /* DDR mode at 1.8V */ |
| 246 | #define MMC_CAP_1_2V_DDR (1 << 12) /* can support */ |
| 247 | /* DDR mode at 1.2V */ |
Ohad Ben-Cohen | ed919b0 | 2010-11-19 09:29:09 +0200 | [diff] [blame] | 248 | #define MMC_CAP_POWER_OFF_CARD (1 << 13) /* Can power off after boot */ |
Aries Lee | 22113ef | 2010-12-15 08:14:24 +0100 | [diff] [blame] | 249 | #define MMC_CAP_BUS_WIDTH_TEST (1 << 14) /* CMD14/CMD19 bus width ok */ |
Arindam Nath | f2119df | 2011-05-05 12:18:57 +0530 | [diff] [blame] | 250 | #define MMC_CAP_UHS_SDR12 (1 << 15) /* Host supports UHS SDR12 mode */ |
| 251 | #define MMC_CAP_UHS_SDR25 (1 << 16) /* Host supports UHS SDR25 mode */ |
| 252 | #define MMC_CAP_UHS_SDR50 (1 << 17) /* Host supports UHS SDR50 mode */ |
| 253 | #define MMC_CAP_UHS_SDR104 (1 << 18) /* Host supports UHS SDR104 mode */ |
| 254 | #define MMC_CAP_UHS_DDR50 (1 << 19) /* Host supports UHS DDR50 mode */ |
| 255 | #define MMC_CAP_SET_XPC_330 (1 << 20) /* Host supports >150mA current at 3.3V */ |
| 256 | #define MMC_CAP_SET_XPC_300 (1 << 21) /* Host supports >150mA current at 3.0V */ |
| 257 | #define MMC_CAP_SET_XPC_180 (1 << 22) /* Host supports >150mA current at 1.8V */ |
Arindam Nath | d6d50a1 | 2011-05-05 12:18:59 +0530 | [diff] [blame] | 258 | #define MMC_CAP_DRIVER_TYPE_A (1 << 23) /* Host supports Driver Type A */ |
| 259 | #define MMC_CAP_DRIVER_TYPE_C (1 << 24) /* Host supports Driver Type C */ |
| 260 | #define MMC_CAP_DRIVER_TYPE_D (1 << 25) /* Host supports Driver Type D */ |
Arindam Nath | 5371c92 | 2011-05-05 12:19:02 +0530 | [diff] [blame] | 261 | #define MMC_CAP_MAX_CURRENT_200 (1 << 26) /* Host max current limit is 200mA */ |
| 262 | #define MMC_CAP_MAX_CURRENT_400 (1 << 27) /* Host max current limit is 400mA */ |
| 263 | #define MMC_CAP_MAX_CURRENT_600 (1 << 28) /* Host max current limit is 600mA */ |
| 264 | #define MMC_CAP_MAX_CURRENT_800 (1 << 29) /* Host max current limit is 800mA */ |
Andrei Warkentin | d0c97cf | 2011-05-23 15:06:36 -0500 | [diff] [blame] | 265 | #define MMC_CAP_CMD23 (1 << 30) /* CMD23 supported. */ |
Adrian Hunter | b249951 | 2011-08-29 16:42:11 +0300 | [diff] [blame] | 266 | #define MMC_CAP_HW_RESET (1 << 31) /* Hardware reset */ |
Pierre Ossman | f218278 | 2005-09-06 15:18:55 -0700 | [diff] [blame] | 267 | |
Adrian Hunter | f7c56ef | 2011-09-23 12:48:21 +0300 | [diff] [blame] | 268 | unsigned int caps2; /* More host capabilities */ |
| 269 | |
| 270 | #define MMC_CAP2_BOOTPART_NOACC (1 << 0) /* Boot partition no access */ |
Seungwon Jeon | 881d1c2 | 2011-10-14 14:03:21 +0900 | [diff] [blame] | 271 | #define MMC_CAP2_CACHE_CTRL (1 << 1) /* Allow cache control */ |
Girish K S | bec8726 | 2011-10-13 12:04:16 +0530 | [diff] [blame] | 272 | #define MMC_CAP2_POWEROFF_NOTIFY (1 << 2) /* Notify poweroff supported */ |
Paul Walmsley | 2bf22b3 | 2011-10-06 14:50:33 -0600 | [diff] [blame] | 273 | #define MMC_CAP2_NO_MULTI_READ (1 << 3) /* Multiblock reads don't work */ |
Ulf Hansson | aa9df4f | 2011-12-19 16:24:19 +0100 | [diff] [blame] | 274 | #define MMC_CAP2_NO_SLEEP_CMD (1 << 4) /* Don't allow sleep command */ |
Girish K S | a4924c7 | 2012-01-11 14:04:52 -0500 | [diff] [blame] | 275 | #define MMC_CAP2_HS200_1_8V_SDR (1 << 5) /* can support */ |
| 276 | #define MMC_CAP2_HS200_1_2V_SDR (1 << 6) /* can support */ |
| 277 | #define MMC_CAP2_HS200 (MMC_CAP2_HS200_1_8V_SDR | \ |
| 278 | MMC_CAP2_HS200_1_2V_SDR) |
Jaehoon Chung | 6e8201f | 2012-01-16 17:49:01 +0900 | [diff] [blame] | 279 | #define MMC_CAP2_BROKEN_VOLTAGE (1 << 7) /* Use the broken voltage */ |
Ulf Hansson | f0cc9cf | 2012-02-06 10:42:39 +0100 | [diff] [blame] | 280 | #define MMC_CAP2_DETECT_ON_ERR (1 << 8) /* On I/O err check card removal */ |
Adrian Hunter | 83bb24a | 2012-03-13 05:19:13 -0400 | [diff] [blame] | 281 | #define MMC_CAP2_HC_ERASE_SZ (1 << 9) /* High-capacity erase size */ |
Tatyana Brokhman | 8b458cf | 2012-10-16 08:26:18 +0200 | [diff] [blame] | 282 | |
Maya Erez | 7dc58e7 | 2013-02-05 21:39:29 +0200 | [diff] [blame] | 283 | #define MMC_CAP2_PACKED_RD (1 << 12) /* Allow packed read */ |
| 284 | #define MMC_CAP2_PACKED_WR (1 << 13) /* Allow packed write */ |
Seungwon Jeon | c70e966 | 2012-09-27 16:12:47 +0200 | [diff] [blame] | 285 | #define MMC_CAP2_PACKED_CMD (MMC_CAP2_PACKED_RD | \ |
| 286 | MMC_CAP2_PACKED_WR) /* Allow packed commands */ |
Maya Erez | 7dc58e7 | 2013-02-05 21:39:29 +0200 | [diff] [blame] | 287 | #define MMC_CAP2_PACKED_WR_CONTROL (1 << 14) /* Allow write packing control */ |
Tatyana Brokhman | 0cc7640 | 2012-10-07 09:52:16 +0200 | [diff] [blame] | 288 | |
Maya Erez | 7dc58e7 | 2013-02-05 21:39:29 +0200 | [diff] [blame] | 289 | #define MMC_CAP2_SANITIZE (1 << 15) /* Support Sanitize */ |
| 290 | #define MMC_CAP2_INIT_BKOPS (1 << 16) /* Need to set BKOPS_EN */ |
| 291 | #define MMC_CAP2_CLK_SCALE (1 << 17) /* Allow dynamic clk scaling */ |
Konstantin Dorfman | 9b0f5ec | 2013-02-12 13:19:48 +0200 | [diff] [blame] | 292 | #define MMC_CAP2_STOP_REQUEST (1 << 18) /* Allow stop ongoing request */ |
Asutosh Das | bbc8478 | 2013-02-11 15:31:35 +0530 | [diff] [blame] | 293 | /* Use runtime PM framework provided by MMC core */ |
| 294 | #define MMC_CAP2_CORE_RUNTIME_PM (1 << 19) |
Subhash Jadavani | 5c4970f | 2013-05-24 19:22:10 +0530 | [diff] [blame] | 295 | /* Allows Asynchronous SDIO irq while card is in 4-bit mode */ |
| 296 | #define MMC_CAP2_ASYNC_SDIO_IRQ_4BIT_MODE (1 << 20) |
Nicolas Pitre | da68c4e | 2010-03-05 13:43:31 -0800 | [diff] [blame] | 297 | mmc_pm_flag_t pm_caps; /* supported pm features */ |
| 298 | |
Linus Walleij | 0456683 | 2010-11-08 21:36:50 -0500 | [diff] [blame] | 299 | int clk_requests; /* internal reference counter */ |
| 300 | unsigned int clk_delay; /* number of MCI clk hold cycles */ |
| 301 | bool clk_gated; /* clock gated */ |
Sujit Reddy Thumma | 597dd9d | 2011-11-14 13:53:29 +0530 | [diff] [blame] | 302 | struct delayed_work clk_gate_work; /* delayed clock gate */ |
Linus Walleij | 0456683 | 2010-11-08 21:36:50 -0500 | [diff] [blame] | 303 | unsigned int clk_old; /* old clock value cache */ |
| 304 | spinlock_t clk_lock; /* lock for clk fields */ |
Chris Ball | 86f315b | 2011-05-16 11:32:26 -0400 | [diff] [blame] | 305 | struct mutex clk_gate_mutex; /* mutex for clock gating */ |
Sujit Reddy Thumma | 597dd9d | 2011-11-14 13:53:29 +0530 | [diff] [blame] | 306 | struct device_attribute clkgate_delay_attr; |
| 307 | unsigned long clkgate_delay; |
Linus Walleij | 0456683 | 2010-11-08 21:36:50 -0500 | [diff] [blame] | 308 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | /* host specific block data */ |
| 310 | unsigned int max_seg_size; /* see blk_queue_max_segment_size */ |
Martin K. Petersen | a36274e | 2010-09-10 01:33:59 -0400 | [diff] [blame] | 311 | unsigned short max_segs; /* see blk_queue_max_segments */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | unsigned short unused; |
Pierre Ossman | 55db890 | 2006-11-21 17:55:45 +0100 | [diff] [blame] | 313 | unsigned int max_req_size; /* maximum number of bytes in one req */ |
Pierre Ossman | fe4a3c7 | 2006-11-21 17:54:23 +0100 | [diff] [blame] | 314 | unsigned int max_blk_size; /* maximum size of one mmc block */ |
Pierre Ossman | 55db890 | 2006-11-21 17:55:45 +0100 | [diff] [blame] | 315 | unsigned int max_blk_count; /* maximum number of blocks in one req */ |
Adrian Hunter | e056a1b | 2011-06-28 17:16:02 +0300 | [diff] [blame] | 316 | unsigned int max_discard_to; /* max. discard timeout in ms */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | |
| 318 | /* private data */ |
Pierre Ossman | 7ea239d | 2006-12-31 00:11:32 +0100 | [diff] [blame] | 319 | spinlock_t lock; /* lock for claim and bus ops */ |
| 320 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | struct mmc_ios ios; /* current io bus settings */ |
| 322 | u32 ocr; /* the current OCR setting */ |
| 323 | |
David Brownell | 9701858 | 2007-08-08 09:09:01 -0700 | [diff] [blame] | 324 | /* group bitfields together to minimize padding */ |
| 325 | unsigned int use_spi_crc:1; |
| 326 | unsigned int claimed:1; /* host exclusively claimed */ |
| 327 | unsigned int bus_dead:1; /* bus has been released */ |
| 328 | #ifdef CONFIG_MMC_DEBUG |
| 329 | unsigned int removed:1; /* host is being removed */ |
| 330 | #endif |
| 331 | |
Maxim Levitsky | 4c2ef25 | 2010-08-10 18:01:41 -0700 | [diff] [blame] | 332 | int rescan_disable; /* disable card detection */ |
Adrian Hunter | 8ea926b | 2009-09-22 16:44:29 -0700 | [diff] [blame] | 333 | |
Pierre Ossman | b855885 | 2007-01-03 19:47:29 +0100 | [diff] [blame] | 334 | struct mmc_card *card; /* device attached to this host */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | |
| 336 | wait_queue_head_t wq; |
Adrian Hunter | 319a3f1 | 2009-09-22 16:44:30 -0700 | [diff] [blame] | 337 | struct task_struct *claimer; /* task that has host claimed */ |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 338 | struct task_struct *suspend_task; |
Adrian Hunter | 319a3f1 | 2009-09-22 16:44:30 -0700 | [diff] [blame] | 339 | int claim_cnt; /* "claim" nesting count */ |
Pierre Ossman | f22ee4e | 2006-12-26 15:11:23 +0100 | [diff] [blame] | 340 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 341 | struct delayed_work detect; |
Colin Cross | 26d2321 | 2011-09-07 17:28:58 -0700 | [diff] [blame] | 342 | struct wake_lock detect_wake_lock; |
Sujit Reddy Thumma | 78d4a3b | 2013-01-04 12:12:38 +0530 | [diff] [blame] | 343 | const char *wlock_name; |
Adrian Hunter | d304950 | 2011-11-28 16:22:00 +0200 | [diff] [blame] | 344 | int detect_change; /* card detect flag */ |
Guennadi Liakhovetski | b67e198 | 2011-12-25 20:40:03 -0500 | [diff] [blame] | 345 | struct mmc_hotplug hotplug; |
Russell King | 01357dc | 2005-09-08 22:46:00 +0100 | [diff] [blame] | 346 | |
Pierre Ossman | 7ea239d | 2006-12-31 00:11:32 +0100 | [diff] [blame] | 347 | const struct mmc_bus_ops *bus_ops; /* current bus driver */ |
| 348 | unsigned int bus_refs; /* reference counter */ |
Pierre Ossman | 7ea239d | 2006-12-31 00:11:32 +0100 | [diff] [blame] | 349 | |
San Mehat | 41d9d91e | 2009-07-30 07:55:28 -0700 | [diff] [blame] | 350 | unsigned int bus_resume_flags; |
| 351 | #define MMC_BUSRESUME_MANUAL_RESUME (1 << 0) |
| 352 | #define MMC_BUSRESUME_NEEDS_RESUME (1 << 1) |
| 353 | |
Nicolas Pitre | d1496c3 | 2007-06-30 16:29:41 +0200 | [diff] [blame] | 354 | unsigned int sdio_irqs; |
| 355 | struct task_struct *sdio_irq_thread; |
Nicolas Pitre | fed14d9 | 2012-04-16 19:16:54 -0400 | [diff] [blame] | 356 | bool sdio_irq_pending; |
Nicolas Pitre | d1496c3 | 2007-06-30 16:29:41 +0200 | [diff] [blame] | 357 | atomic_t sdio_irq_thread_abort; |
| 358 | |
Nicolas Pitre | da68c4e | 2010-03-05 13:43:31 -0800 | [diff] [blame] | 359 | mmc_pm_flag_t pm_flags; /* requested pm features */ |
| 360 | |
Pierre Ossman | af8350c | 2007-09-24 07:15:48 +0200 | [diff] [blame] | 361 | #ifdef CONFIG_LEDS_TRIGGERS |
| 362 | struct led_trigger *led; /* activity led */ |
| 363 | #endif |
| 364 | |
Linus Walleij | 99fc513 | 2010-09-29 01:08:27 -0400 | [diff] [blame] | 365 | #ifdef CONFIG_REGULATOR |
| 366 | bool regulator_enabled; /* regulator state */ |
| 367 | #endif |
| 368 | |
Haavard Skinnemoen | 6edd8ee | 2008-07-24 14:18:57 +0200 | [diff] [blame] | 369 | struct dentry *debugfs_root; |
| 370 | |
Per Forlin | aa8b683 | 2011-07-01 18:55:22 +0200 | [diff] [blame] | 371 | struct mmc_async_req *areq; /* active async req */ |
Konstantin Dorfman | 69bd0fb | 2012-12-12 16:12:08 +0200 | [diff] [blame] | 372 | struct mmc_context_info context_info; /* async synchronization info */ |
Per Forlin | aa8b683 | 2011-07-01 18:55:22 +0200 | [diff] [blame] | 373 | |
Per Forlin | 1b676f7 | 2011-08-19 14:52:37 +0200 | [diff] [blame] | 374 | #ifdef CONFIG_FAIL_MMC_REQUEST |
| 375 | struct fault_attr fail_mmc_request; |
| 376 | #endif |
| 377 | |
Giuseppe CAVALLARO | df16219 | 2011-11-04 13:53:19 +0100 | [diff] [blame] | 378 | unsigned int actual_clock; /* Actual HC clock rate */ |
| 379 | |
San Mehat | e01587a | 2008-04-14 15:22:49 -0700 | [diff] [blame] | 380 | #ifdef CONFIG_MMC_EMBEDDED_SDIO |
| 381 | struct { |
| 382 | struct sdio_cis *cis; |
| 383 | struct sdio_cccr *cccr; |
| 384 | struct sdio_embedded_func *funcs; |
| 385 | int num_funcs; |
| 386 | } embedded_sdio_data; |
| 387 | #endif |
| 388 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 389 | #ifdef CONFIG_MMC_PERF_PROFILING |
| 390 | struct { |
| 391 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 392 | unsigned long rbytes_drv; /* Rd bytes MMC Host */ |
| 393 | unsigned long wbytes_drv; /* Wr bytes MMC Host */ |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 394 | ktime_t rtime_drv; /* Rd time MMC Host */ |
| 395 | ktime_t wtime_drv; /* Wr time MMC Host */ |
| 396 | ktime_t start; |
| 397 | } perf; |
Subhash Jadavani | 1de2dfd | 2012-03-25 11:15:41 +0530 | [diff] [blame] | 398 | bool perf_enable; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 399 | #endif |
Asutosh Das | 2331394 | 2012-05-28 17:27:20 +0530 | [diff] [blame] | 400 | struct mmc_ios saved_ios; |
Sujit Reddy Thumma | 51d57b3 | 2012-10-11 17:17:03 +0530 | [diff] [blame] | 401 | struct { |
| 402 | unsigned long busy_time_us; |
| 403 | unsigned long window_time; |
| 404 | unsigned long curr_freq; |
| 405 | unsigned long polling_delay_ms; |
| 406 | unsigned int up_threshold; |
| 407 | unsigned int down_threshold; |
| 408 | ktime_t start_busy; |
| 409 | bool enable; |
| 410 | bool initialized; |
| 411 | bool in_progress; |
| 412 | struct delayed_work work; |
Sujit Reddy Thumma | 1ed78ab | 2013-04-25 12:39:40 +0530 | [diff] [blame] | 413 | enum mmc_load state; |
Sujit Reddy Thumma | 51d57b3 | 2012-10-11 17:17:03 +0530 | [diff] [blame] | 414 | } clk_scaling; |
Russell King | 01357dc | 2005-09-08 22:46:00 +0100 | [diff] [blame] | 415 | unsigned long private[0] ____cacheline_aligned; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | }; |
| 417 | |
| 418 | extern struct mmc_host *mmc_alloc_host(int extra, struct device *); |
Subhash Jadavani | 35f13dc | 2013-05-27 16:35:35 +0530 | [diff] [blame] | 419 | extern bool mmc_host_may_gate_card(struct mmc_card *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | extern int mmc_add_host(struct mmc_host *); |
| 421 | extern void mmc_remove_host(struct mmc_host *); |
| 422 | extern void mmc_free_host(struct mmc_host *); |
| 423 | |
San Mehat | e01587a | 2008-04-14 15:22:49 -0700 | [diff] [blame] | 424 | #ifdef CONFIG_MMC_EMBEDDED_SDIO |
| 425 | extern void mmc_set_embedded_sdio_data(struct mmc_host *host, |
| 426 | struct sdio_cis *cis, |
| 427 | struct sdio_cccr *cccr, |
| 428 | struct sdio_embedded_func *funcs, |
| 429 | int num_funcs); |
| 430 | #endif |
| 431 | |
Russell King | 01357dc | 2005-09-08 22:46:00 +0100 | [diff] [blame] | 432 | static inline void *mmc_priv(struct mmc_host *host) |
| 433 | { |
| 434 | return (void *)host->private; |
| 435 | } |
| 436 | |
David Brownell | 9701858 | 2007-08-08 09:09:01 -0700 | [diff] [blame] | 437 | #define mmc_host_is_spi(host) ((host)->caps & MMC_CAP_SPI) |
| 438 | |
Greg Kroah-Hartman | fcaf71f | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 439 | #define mmc_dev(x) ((x)->parent) |
Pierre Ossman | 11354d0 | 2007-01-14 01:41:45 +0100 | [diff] [blame] | 440 | #define mmc_classdev(x) (&(x)->class_dev) |
Kay Sievers | d1b2686 | 2008-11-08 21:37:46 +0100 | [diff] [blame] | 441 | #define mmc_hostname(x) (dev_name(&(x)->class_dev)) |
San Mehat | 41d9d91e | 2009-07-30 07:55:28 -0700 | [diff] [blame] | 442 | #define mmc_bus_needs_resume(host) ((host)->bus_resume_flags & MMC_BUSRESUME_NEEDS_RESUME) |
Dmitry Shmidt | 0eb9a8f | 2010-10-14 15:20:21 -0700 | [diff] [blame] | 443 | #define mmc_bus_manual_resume(host) ((host)->bus_resume_flags & MMC_BUSRESUME_MANUAL_RESUME) |
San Mehat | 41d9d91e | 2009-07-30 07:55:28 -0700 | [diff] [blame] | 444 | |
| 445 | static inline void mmc_set_bus_resume_policy(struct mmc_host *host, int manual) |
| 446 | { |
| 447 | if (manual) |
| 448 | host->bus_resume_flags |= MMC_BUSRESUME_MANUAL_RESUME; |
| 449 | else |
| 450 | host->bus_resume_flags &= ~MMC_BUSRESUME_MANUAL_RESUME; |
| 451 | } |
| 452 | |
| 453 | extern int mmc_resume_bus(struct mmc_host *host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | |
Matt Fleming | 1a13f8f | 2010-05-26 14:42:08 -0700 | [diff] [blame] | 455 | extern int mmc_suspend_host(struct mmc_host *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | extern int mmc_resume_host(struct mmc_host *); |
| 457 | |
Ohad Ben-Cohen | 12ae637 | 2010-10-02 13:54:06 +0200 | [diff] [blame] | 458 | extern int mmc_power_save_host(struct mmc_host *host); |
| 459 | extern int mmc_power_restore_host(struct mmc_host *host); |
Adrian Hunter | eae1aee | 2009-09-22 16:44:33 -0700 | [diff] [blame] | 460 | |
Richard Purdie | 8dc0033 | 2005-09-08 17:53:01 +0100 | [diff] [blame] | 461 | extern void mmc_detect_change(struct mmc_host *, unsigned long delay); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | extern void mmc_request_done(struct mmc_host *, struct mmc_request *); |
| 463 | |
Seungwon Jeon | 881d1c2 | 2011-10-14 14:03:21 +0900 | [diff] [blame] | 464 | extern int mmc_cache_ctrl(struct mmc_host *, u8); |
| 465 | |
Nicolas Pitre | 17b759a | 2007-07-24 02:09:39 -0400 | [diff] [blame] | 466 | static inline void mmc_signal_sdio_irq(struct mmc_host *host) |
| 467 | { |
Sujit Reddy Thumma | a9eed75 | 2013-03-13 08:49:27 +0530 | [diff] [blame] | 468 | if (!host->sdio_irqs) { |
| 469 | pr_err("%s: SDIO interrupt recieved without function driver claiming an irq\n", |
| 470 | mmc_hostname(host)); |
| 471 | return; |
| 472 | } |
| 473 | |
Nicolas Pitre | 17b759a | 2007-07-24 02:09:39 -0400 | [diff] [blame] | 474 | host->ops->enable_sdio_irq(host, 0); |
Nicolas Pitre | fed14d9 | 2012-04-16 19:16:54 -0400 | [diff] [blame] | 475 | host->sdio_irq_pending = true; |
Nicolas Pitre | 17b759a | 2007-07-24 02:09:39 -0400 | [diff] [blame] | 476 | wake_up_process(host->sdio_irq_thread); |
| 477 | } |
| 478 | |
David Brownell | 5c13941 | 2009-03-11 03:30:43 -0800 | [diff] [blame] | 479 | struct regulator; |
| 480 | |
Linus Walleij | 99fc513 | 2010-09-29 01:08:27 -0400 | [diff] [blame] | 481 | #ifdef CONFIG_REGULATOR |
David Brownell | 5c13941 | 2009-03-11 03:30:43 -0800 | [diff] [blame] | 482 | int mmc_regulator_get_ocrmask(struct regulator *supply); |
Linus Walleij | 99fc513 | 2010-09-29 01:08:27 -0400 | [diff] [blame] | 483 | int mmc_regulator_set_ocr(struct mmc_host *mmc, |
| 484 | struct regulator *supply, |
| 485 | unsigned short vdd_bit); |
| 486 | #else |
| 487 | static inline int mmc_regulator_get_ocrmask(struct regulator *supply) |
| 488 | { |
| 489 | return 0; |
| 490 | } |
| 491 | |
| 492 | static inline int mmc_regulator_set_ocr(struct mmc_host *mmc, |
| 493 | struct regulator *supply, |
| 494 | unsigned short vdd_bit) |
| 495 | { |
| 496 | return 0; |
| 497 | } |
| 498 | #endif |
David Brownell | 5c13941 | 2009-03-11 03:30:43 -0800 | [diff] [blame] | 499 | |
Jarkko Lavinen | b1ebe38 | 2009-09-22 16:44:34 -0700 | [diff] [blame] | 500 | int mmc_card_awake(struct mmc_host *host); |
| 501 | int mmc_card_sleep(struct mmc_host *host); |
| 502 | int mmc_card_can_sleep(struct mmc_host *host); |
| 503 | |
Maxim Levitsky | 4c2ef25 | 2010-08-10 18:01:41 -0700 | [diff] [blame] | 504 | int mmc_pm_notify(struct notifier_block *notify_block, unsigned long, void *); |
Adrian Hunter | 8ea926b | 2009-09-22 16:44:29 -0700 | [diff] [blame] | 505 | |
Matt Fleming | 71d7d3d | 2010-09-27 09:42:19 +0100 | [diff] [blame] | 506 | /* Module parameter */ |
Rusty Russell | 90ab5ee | 2012-01-13 09:32:20 +1030 | [diff] [blame] | 507 | extern bool mmc_assume_removable; |
Matt Fleming | 71d7d3d | 2010-09-27 09:42:19 +0100 | [diff] [blame] | 508 | |
| 509 | static inline int mmc_card_is_removable(struct mmc_host *host) |
| 510 | { |
| 511 | return !(host->caps & MMC_CAP_NONREMOVABLE) && mmc_assume_removable; |
| 512 | } |
| 513 | |
Ohad Ben-Cohen | a5e9425 | 2011-04-05 17:43:20 +0300 | [diff] [blame] | 514 | static inline int mmc_card_keep_power(struct mmc_host *host) |
Ohad Ben-Cohen | 080bc97 | 2010-11-28 07:21:29 +0200 | [diff] [blame] | 515 | { |
| 516 | return host->pm_flags & MMC_PM_KEEP_POWER; |
| 517 | } |
| 518 | |
Ohad Ben-Cohen | 6b93d01f | 2011-04-05 17:43:21 +0300 | [diff] [blame] | 519 | static inline int mmc_card_wake_sdio_irq(struct mmc_host *host) |
| 520 | { |
| 521 | return host->pm_flags & MMC_PM_WAKE_SDIO_IRQ; |
| 522 | } |
Andrei Warkentin | d0c97cf | 2011-05-23 15:06:36 -0500 | [diff] [blame] | 523 | |
| 524 | static inline int mmc_host_cmd23(struct mmc_host *host) |
| 525 | { |
| 526 | return host->caps & MMC_CAP_CMD23; |
| 527 | } |
Adrian Hunter | f7c56ef | 2011-09-23 12:48:21 +0300 | [diff] [blame] | 528 | |
| 529 | static inline int mmc_boot_partition_access(struct mmc_host *host) |
| 530 | { |
| 531 | return !(host->caps2 & MMC_CAP2_BOOTPART_NOACC); |
| 532 | } |
| 533 | |
Sujit Reddy Thumma | 25248b6 | 2012-08-03 11:24:04 +0530 | [diff] [blame] | 534 | static inline int mmc_host_uhs(struct mmc_host *host) |
| 535 | { |
| 536 | return host->caps & |
| 537 | (MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25 | |
| 538 | MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR104 | |
| 539 | MMC_CAP_UHS_DDR50); |
| 540 | } |
| 541 | |
Sujit Reddy Thumma | 2c4967f74 | 2012-02-04 16:14:50 -0500 | [diff] [blame] | 542 | #ifdef CONFIG_MMC_CLKGATE |
| 543 | void mmc_host_clk_hold(struct mmc_host *host); |
| 544 | void mmc_host_clk_release(struct mmc_host *host); |
| 545 | unsigned int mmc_host_clk_rate(struct mmc_host *host); |
| 546 | |
| 547 | #else |
| 548 | static inline void mmc_host_clk_hold(struct mmc_host *host) |
| 549 | { |
| 550 | } |
| 551 | |
| 552 | static inline void mmc_host_clk_release(struct mmc_host *host) |
| 553 | { |
| 554 | } |
| 555 | |
| 556 | static inline unsigned int mmc_host_clk_rate(struct mmc_host *host) |
| 557 | { |
| 558 | return host->ios.clock; |
| 559 | } |
| 560 | #endif |
Asutosh Das | bbc8478 | 2013-02-11 15:31:35 +0530 | [diff] [blame] | 561 | |
| 562 | static inline int mmc_use_core_runtime_pm(struct mmc_host *host) |
| 563 | { |
| 564 | return host->caps2 & MMC_CAP2_CORE_RUNTIME_PM; |
| 565 | } |
| 566 | |
Robert P. J. Day | 100e918 | 2011-05-27 16:04:03 -0400 | [diff] [blame] | 567 | #endif /* LINUX_MMC_HOST_H */ |