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
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 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 sdc.h
* @brief SDC Driver macros and structures.
*
* @addtogroup SDC
* @{
*/
#ifndef _SDC_H_
#define _SDC_H_
#if HAL_USE_SDC || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/**
* @name SD cart types
* @{
*/
#define SDC_MODE_CARDTYPE_MASK 0xF /**< @brief Card type mask. */
#define SDC_MODE_CARDTYPE_SDV11 0 /**< @brief Card is SD V1.1.*/
#define SDC_MODE_CARDTYPE_SDV20 1 /**< @brief Card is SD V2.0.*/
#define SDC_MODE_CARDTYPE_MMC 2 /**< @brief Card is MMC. */
#define SDC_MODE_HIGH_CAPACITY 0x10 /**< @brief High cap.card. */
/** @} */
/**
* @name SDC bus error conditions
* @{
*/
#define SDC_NO_ERROR 0 /**< @brief No error. */
#define SDC_CMD_CRC_ERROR 1 /**< @brief Command CRC error. */
#define SDC_DATA_CRC_ERROR 2 /**< @brief Data CRC error. */
#define SDC_DATA_TIMEOUT 4 /**< @brief HW write timeout. */
#define SDC_COMMAND_TIMEOUT 8 /**< @brief HW read timeout. */
#define SDC_TX_UNDERRUN 16 /**< @brief TX buffer underrun. */
#define SDC_RX_OVERRUN 32 /**< @brief RX buffer overrun. */
#define SDC_STARTBIT_ERROR 64 /**< @brief Start bit missing. */
#define SDC_OVERFLOW_ERROR 128 /**< @brief Card overflow error. */
#define SDC_UNHANDLED_ERROR 0xFFFFFFFF
/** @} */
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @name SDC configuration options
* @{
*/
/**
* @brief Number of initialization attempts before rejecting the card.
* @note Attempts are performed at 10mS intervals.
*/
#if !defined(SDC_INIT_RETRY) || defined(__DOXYGEN__)
#define SDC_INIT_RETRY 100
#endif
/**
* @brief Include support for MMC cards.
* @note MMC support is not yet implemented so this option must be kept
* at @p FALSE.
*/
#if !defined(SDC_MMC_SUPPORT) || defined(__DOXYGEN__)
#define SDC_MMC_SUPPORT FALSE
#endif
/**
* @brief Delays insertions.
* @details If enabled this options inserts delays into the MMC waiting
* routines releasing some extra CPU time for the threads with
* lower priority, this may slow down the driver a bit however.
*/
#if !defined(SDC_NICE_WAITING) || defined(__DOXYGEN__)
#define SDC_NICE_WAITING TRUE
#endif
/** @} */
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Driver state machine possible states.
*/
typedef enum {
SDC_UNINIT = 0, /**< Not initialized. */
SDC_STOP = 1, /**< Stopped. */
SDC_READY = 2, /**< Ready. */
SDC_CONNECTING = 3, /**< Card connection in progress. */
SDC_DISCONNECTING = 4, /**< Card disconnection in progress. */
SDC_ACTIVE = 5, /**< Cart initialized. */
SDC_READING = 6, /**< Read operation in progress. */
SDC_WRITING = 7, /**< Write operation in progress. */
} sdcstate_t;
#include "sdc_lld.h"
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/**
* @name Macro Functions
* @{
*/
/**
* @brief Returns the driver state.
*
* @param[in] sdcp pointer to the @p SDCDriver object
* @return The driver state.
*
* @api
*/
#define sdcGetDriverState(sdcp) ((sdcp)->state)
/**
* @brief Returns the card insertion status.
* @note This macro wraps a low level function named
* @p sdc_lld_is_card_inserted(), this function must be
* provided by the application because it is not part of the
* SDC driver.
*
* @param[in] sdcp pointer to the @p SDCDriver object
* @return The card state.
* @retval FALSE card not inserted.
* @retval TRUE card inserted.
*
* @api
*/
#define sdcIsCardInserted(sdcp) (sdc_lld_is_card_inserted(sdcp))
/**
* @brief Returns the write protect status.
* @note This macro wraps a low level function named
* @p sdc_lld_is_write_protected(), this function must be
* provided by the application because it is not part of the
* SDC driver.
*
* @param[in] sdcp pointer to the @p SDCDriver object
* @return The card state.
* @retval FALSE not write protected.
* @retval TRUE write protected.
*
* @api
*/
#define sdcIsWriteProtected(sdcp) (sdc_lld_is_write_protected(sdcp))
/**
* @brief Returns the card capacity in blocks.
*
* @param[in] sdcp pointer to the @p SDCDriver object
* @return The card capacity.
*
* @api
*/
#define sdcGetCardCapacity(sdcp) ((sdcp)->capacity)
/** @} */
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
void sdcInit(void);
void sdcObjectInit(SDCDriver *sdcp);
void sdcStart(SDCDriver *sdcp, const SDCConfig *config);
void sdcStop(SDCDriver *sdcp);
bool_t sdcConnect(SDCDriver *sdcp);
bool_t sdcDisconnect(SDCDriver *sdcp);
bool_t sdcRead(SDCDriver *sdcp, uint32_t startblk,
uint8_t *buffer, uint32_t n);
bool_t sdcWrite(SDCDriver *sdcp, uint32_t startblk,
const uint8_t *buffer, uint32_t n);
sdcflags_t sdcGetAndClearErrors(SDCDriver *sdcp);
bool_t sdcSync(SDCDriver *sdcp);
bool_t sdcGetInfo(SDCDriver *sdcp, BlockDeviceInfo *bdip);
bool_t sdcErase(SDCDriver *mmcp, uint32_t startblk, uint32_t endblk);
bool_t _sdc_wait_for_transfer_state(SDCDriver *sdcp);
#ifdef __cplusplus
}
#endif
#endif /* HAL_USE_SDC */
#endif /* _SDC_H_ */
/** @} */
|
