1 /* $NetBSD: sdmmcchip.h,v 1.10 2019/10/23 05:20:52 hkenken Exp $ */ 2 /* $OpenBSD: sdmmcchip.h,v 1.3 2007/05/31 10:09:01 uwe Exp $ */ 3 4 /* 5 * Copyright (c) 2006 Uwe Stuehler <uwe (at) openbsd.org> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #ifndef _SDMMC_CHIP_H_ 21 #define _SDMMC_CHIP_H_ 22 23 #include <sys/device.h> 24 25 #include <sys/bus.h> 26 27 struct sdmmc_command; 28 29 typedef struct sdmmc_chip_functions *sdmmc_chipset_tag_t; 30 typedef struct sdmmc_spi_chip_functions *sdmmc_spi_chipset_tag_t; 31 typedef void *sdmmc_chipset_handle_t; 32 33 struct sdmmc_chip_functions { 34 /* host controller reset */ 35 int (*host_reset)(sdmmc_chipset_handle_t); 36 37 /* host capabilities */ 38 uint32_t (*host_ocr)(sdmmc_chipset_handle_t); 39 int (*host_maxblklen)(sdmmc_chipset_handle_t); 40 41 /* card detection */ 42 int (*card_detect)(sdmmc_chipset_handle_t); 43 44 /* write protect */ 45 int (*write_protect)(sdmmc_chipset_handle_t); 46 47 /* bus power, clock frequency, width and ROD(OpenDrain/PushPull) */ 48 int (*bus_power)(sdmmc_chipset_handle_t, uint32_t); 49 int (*bus_clock)(sdmmc_chipset_handle_t, int); 50 int (*bus_width)(sdmmc_chipset_handle_t, int); 51 int (*bus_rod)(sdmmc_chipset_handle_t, int); 52 53 /* command execution */ 54 void (*exec_command)(sdmmc_chipset_handle_t, 55 struct sdmmc_command *); 56 57 /* card interrupt */ 58 void (*card_enable_intr)(sdmmc_chipset_handle_t, int); 59 void (*card_intr_ack)(sdmmc_chipset_handle_t); 60 61 /* UHS functions */ 62 int (*signal_voltage)(sdmmc_chipset_handle_t, int); 63 int (*bus_clock_ddr)(sdmmc_chipset_handle_t, int, bool); 64 int (*execute_tuning)(sdmmc_chipset_handle_t, int); 65 66 /* hardware reset */ 67 void (*hw_reset)(sdmmc_chipset_handle_t); 68 }; 69 70 /* host controller reset */ 71 #define sdmmc_chip_host_reset(tag, handle) \ 72 ((tag)->host_reset((handle))) 73 /* host capabilities */ 74 #define sdmmc_chip_host_ocr(tag, handle) \ 75 ((tag)->host_ocr((handle))) 76 #define sdmmc_chip_host_maxblklen(tag, handle) \ 77 ((tag)->host_maxblklen((handle))) 78 /* card detection */ 79 #define sdmmc_chip_card_detect(tag, handle) \ 80 ((tag)->card_detect((handle))) 81 /* write protect */ 82 #define sdmmc_chip_write_protect(tag, handle) \ 83 ((tag)->write_protect((handle))) 84 /* bus power, clock frequency, width and rod */ 85 #define sdmmc_chip_bus_power(tag, handle, ocr) \ 86 ((tag)->bus_power((handle), (ocr))) 87 #define sdmmc_chip_bus_clock(tag, handle, freq, ddr) \ 88 ((tag)->bus_clock_ddr ? (tag)->bus_clock_ddr((handle), (freq), (ddr)) : ((ddr) ? EINVAL : ((tag)->bus_clock((handle), (freq))))) 89 #define sdmmc_chip_bus_width(tag, handle, width) \ 90 ((tag)->bus_width((handle), (width))) 91 #define sdmmc_chip_bus_rod(tag, handle, width) \ 92 ((tag)->bus_rod((handle), (width))) 93 /* command execution */ 94 #define sdmmc_chip_exec_command(tag, handle, cmdp) \ 95 ((tag)->exec_command((handle), (cmdp))) 96 /* card interrupt */ 97 #define sdmmc_chip_card_enable_intr(tag, handle, enable) \ 98 ((tag)->card_enable_intr((handle), (enable))) 99 #define sdmmc_chip_card_intr_ack(tag, handle) \ 100 ((tag)->card_intr_ack((handle))) 101 /* UHS functions */ 102 #define sdmmc_chip_signal_voltage(tag, handle, voltage) \ 103 ((tag)->signal_voltage ? (tag)->signal_voltage((handle), (voltage)) : EINVAL) 104 #define sdmmc_chip_execute_tuning(tag, handle, timing) \ 105 ((tag)->execute_tuning ? (tag)->execute_tuning((handle), (timing)) : EINVAL) 106 /* hardware reset */ 107 #define sdmmc_chip_hw_reset(tag, handle) \ 108 ((tag)->hw_reset ? (tag)->hw_reset((handle)) : /*CONSTCOND*/0) 109 110 /* clock frequencies for sdmmc_chip_bus_clock() */ 111 #define SDMMC_SDCLK_OFF 0 112 #define SDMMC_SDCLK_400K 400 113 114 /* voltage levels for sdmmc_chip_signal_voltage() */ 115 #define SDMMC_SIGNAL_VOLTAGE_330 0 116 #define SDMMC_SIGNAL_VOLTAGE_180 1 117 118 /* timings for sdmmc_chip_execute_tuning() */ 119 #define SDMMC_TIMING_UHS_SDR50 0 120 #define SDMMC_TIMING_UHS_SDR104 1 121 #define SDMMC_TIMING_MMC_HS200 2 122 123 /* SPI mode */ 124 struct sdmmc_spi_chip_functions { 125 /* card initialize */ 126 void (*initialize)(sdmmc_chipset_handle_t); 127 }; 128 #define sdmmc_spi_chip_initialize(tag, handle) \ 129 ((tag)->initialize((handle))) 130 131 struct sdmmcbus_attach_args { 132 const char *saa_busname; 133 sdmmc_chipset_tag_t saa_sct; 134 sdmmc_spi_chipset_tag_t saa_spi_sct; 135 sdmmc_chipset_handle_t saa_sch; 136 bus_dma_tag_t saa_dmat; 137 u_int saa_clkmin; 138 u_int saa_clkmax; 139 uint32_t saa_caps; /* see sdmmc_softc.sc_caps */ 140 uint32_t saa_max_seg; 141 }; 142 143 void sdmmc_needs_discover(device_t); 144 void sdmmc_card_intr(device_t); 145 void sdmmc_delay(u_int); 146 147 #endif /* _SDMMC_CHIP_H_ */ 148
Indexes created Sat Sep 20 22:09:52 GMT 2025