paul@258 | 1 | /* |
paul@258 | 2 | * MSC (MMC/SD controller) peripheral support. |
paul@258 | 3 | * |
paul@258 | 4 | * Copyright (C) 2024 Paul Boddie <paul@boddie.org.uk> |
paul@258 | 5 | * |
paul@258 | 6 | * This program is free software; you can redistribute it and/or |
paul@258 | 7 | * modify it under the terms of the GNU General Public License as |
paul@258 | 8 | * published by the Free Software Foundation; either version 2 of |
paul@258 | 9 | * the License, or (at your option) any later version. |
paul@258 | 10 | * |
paul@258 | 11 | * This program is distributed in the hope that it will be useful, |
paul@258 | 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
paul@258 | 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
paul@258 | 14 | * GNU General Public License for more details. |
paul@258 | 15 | * |
paul@258 | 16 | * You should have received a copy of the GNU General Public License |
paul@258 | 17 | * along with this program; if not, write to the Free Software |
paul@258 | 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, |
paul@258 | 19 | * Boston, MA 02110-1301, USA |
paul@258 | 20 | */ |
paul@258 | 21 | |
paul@258 | 22 | #pragma once |
paul@258 | 23 | |
paul@263 | 24 | #include <l4/devices/msc-common.h> |
paul@258 | 25 | #include <l4/sys/types.h> |
paul@258 | 26 | #include <stdint.h> |
paul@258 | 27 | |
paul@258 | 28 | |
paul@258 | 29 | |
paul@258 | 30 | #ifdef __cplusplus |
paul@258 | 31 | |
paul@258 | 32 | #include <l4/devices/dma-jz4780.h> |
paul@258 | 33 | |
paul@258 | 34 | // MMC/SD controller channel. |
paul@258 | 35 | |
paul@258 | 36 | class Msc_jz4780_channel : public Msc_channel |
paul@258 | 37 | { |
paul@258 | 38 | protected: |
paul@258 | 39 | Dma_jz4780_channel *_dma; |
paul@258 | 40 | enum Dma_jz4780_request_type _request_type_in, _request_type_out; |
paul@258 | 41 | |
paul@258 | 42 | public: |
paul@258 | 43 | explicit Msc_jz4780_channel(l4_addr_t msc_start, l4_addr_t addr, |
paul@264 | 44 | l4_cap_idx_t irq, Cpm_chip *cpm, |
paul@264 | 45 | enum Clock_identifiers clock, |
paul@264 | 46 | Dma_jz4780_channel *dma, |
paul@258 | 47 | enum Dma_jz4780_request_type request_type_in, |
paul@258 | 48 | enum Dma_jz4780_request_type request_type_out); |
paul@258 | 49 | |
paul@258 | 50 | uint32_t transfer(l4re_dma_space_dma_addr_t from_paddr, |
paul@258 | 51 | l4re_dma_space_dma_addr_t to_paddr, |
paul@258 | 52 | bool recv, uint32_t count); |
paul@258 | 53 | }; |
paul@258 | 54 | |
paul@258 | 55 | |
paul@258 | 56 | |
paul@258 | 57 | // MMC/SD controller device control. |
paul@258 | 58 | |
paul@258 | 59 | class Msc_jz4780_chip : public Msc_chip |
paul@258 | 60 | { |
paul@264 | 61 | protected: |
paul@264 | 62 | const enum Dma_jz4780_request_type _in_types[3] = |
paul@264 | 63 | {Dma_request_msc0_in, Dma_request_msc1_in, Dma_request_msc2_in}; |
paul@264 | 64 | |
paul@264 | 65 | const enum Dma_jz4780_request_type _out_types[3] = |
paul@264 | 66 | {Dma_request_msc0_out, Dma_request_msc1_out, Dma_request_msc2_out}; |
paul@264 | 67 | |
paul@264 | 68 | const enum Clock_identifiers _clocks[3] = |
paul@264 | 69 | {Clock_msc0, Clock_msc1, Clock_msc2}; |
paul@264 | 70 | |
paul@258 | 71 | unsigned int num_channels() |
paul@258 | 72 | { return 3; } |
paul@258 | 73 | |
paul@258 | 74 | public: |
paul@264 | 75 | explicit Msc_jz4780_chip(l4_addr_t msc_start, l4_addr_t start, l4_addr_t end, |
paul@264 | 76 | Cpm_chip *cpm); |
paul@258 | 77 | |
paul@258 | 78 | Msc_channel *get_channel(uint8_t channel, l4_cap_idx_t irq, |
paul@258 | 79 | Dma_jz4780_channel *dma); |
paul@258 | 80 | }; |
paul@258 | 81 | |
paul@258 | 82 | #endif /* __cplusplus */ |
paul@258 | 83 | |
paul@258 | 84 | /* C language interface. */ |
paul@258 | 85 | |
paul@258 | 86 | EXTERN_C_BEGIN |
paul@258 | 87 | |
paul@264 | 88 | void *jz4780_msc_init(l4_addr_t msc_start, l4_addr_t start, l4_addr_t end, |
paul@264 | 89 | void *cpm); |
paul@258 | 90 | |
paul@258 | 91 | void *jz4780_msc_get_channel(void *msc, uint8_t channel, l4_cap_idx_t irq, |
paul@258 | 92 | void *dma); |
paul@258 | 93 | |
paul@263 | 94 | struct msc_card *jz4780_msc_get_cards(void *msc_channel); |
paul@263 | 95 | |
paul@263 | 96 | uint8_t jz4780_msc_num_cards(void *msc_channel); |
paul@258 | 97 | |
paul@258 | 98 | void jz4780_msc_enable(void *msc_channel); |
paul@258 | 99 | |
paul@268 | 100 | uint32_t jz4780_msc_read(void *msc_channel, uint8_t card, |
paul@268 | 101 | struct dma_region *region, |
paul@268 | 102 | uint32_t address, uint32_t count); |
paul@268 | 103 | |
paul@261 | 104 | uint32_t jz4780_msc_read_blocks(void *msc_channel, uint8_t card, |
paul@264 | 105 | struct dma_region *region, |
paul@261 | 106 | uint32_t block_address, uint32_t block_count); |
paul@258 | 107 | |
paul@258 | 108 | EXTERN_C_END |