1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file STM32/sdc_lld.h
* @brief STM32 SDC subsystem low level driver header.
*
* @addtogroup SDC
* @{
*/
#ifndef _SDC_LLD_H_
#define _SDC_LLD_H_
#if HAL_USE_SDC || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @brief SDIO DMA priority (0..3|lowest..highest).
*/
#if !defined(STM32_SDC_SDIO_DMA_PRIORITY) || defined(__DOXYGEN__)
#define STM32_SDC_SDIO_DMA_PRIORITY 2
#endif
/**
* @brief SDIO interrupt priority level setting.
*/
#if !defined(STM32_SDC_SDIO_IRQ_PRIORITY) || defined(__DOXYGEN__)
#define STM32_SDC_SDIO_IRQ_PRIORITY 9
#endif
/**
* @brief SDIO DMA error hook.
* @note The default action for DMA errors is a system halt because DMA
* error can only happen because programming errors.
*/
#if !defined(STM32_SDC_DMA_ERROR_HOOK) || defined(__DOXYGEN__)
#define STM32_SDC_DMA_ERROR_HOOK(sdcp) chSysHalt()
#endif
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
#if !STM32_HAS_SDIO
#error "SDIO not present in the selected device"
#endif
#if !defined(STM32_DMA_REQUIRED)
#define STM32_DMA_REQUIRED
#endif
/*
* SDIO clock divider.
*/
#if STM32_HCLK > 48000000
#define STM32_SDIO_DIV_HS 0x01
#define STM32_SDIO_DIV_LS 0xB2
#else
#define STM32_SDIO_DIV_HS 0x00
#define STM32_SDIO_DIV_LS 0x76
#endif
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Type of a structure representing an SDC driver.
*/
typedef struct SDCDriver SDCDriver;
/**
* @brief Driver configuration structure.
* @note It could be empty on some architectures.
*/
typedef struct {
} SDCConfig;
/**
* @brief Structure representing an SDC driver.
*/
struct SDCDriver {
/**
* @brief Driver state.
*/
sdcstate_t state;
/**
* @brief Current configuration data.
*/
const SDCConfig *config;
/* End of the mandatory fields.*/
};
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#if !defined(__DOXYGEN__)
extern SDCDriver SDCD1;
#endif
#ifdef __cplusplus
extern "C" {
#endif
void sdc_lld_init(void);
void sdc_lld_start(SDCDriver *sdcp);
void sdc_lld_stop(SDCDriver *sdcp);
void sdc_lld_send_cmd_none(SDCDriver *sdcp, uint8_t cmd, uint32_t arg);
bool_t sdc_lld_send_cmd_short(SDCDriver *sdcp, uint8_t cmd, uint32_t arg,
uint32_t *resp);
bool_t sdc_lld_send_cmd_long(SDCDriver *sdcp, uint8_t cmd, uint32_t arg,
uint32_t *resp);
#ifdef __cplusplus
}
#endif
#endif /* HAL_USE_SDC */
#endif /* _SDC_LLD_H_ */
/** @} */
|