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sdif_18xx_43xx.c
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1 /*
2 * @brief LPC18xx/43xx SD/SDIO driver
3 *
4 * @note
5 * Copyright(C) NXP Semiconductors, 2012
6 * All rights reserved.
7 *
8 * @par
9 * Software that is described herein is for illustrative purposes only
10 * which provides customers with programming information regarding the
11 * LPC products. This software is supplied "AS IS" without any warranties of
12 * any kind, and NXP Semiconductors and its licensor disclaim any and
13 * all warranties, express or implied, including all implied warranties of
14 * merchantability, fitness for a particular purpose and non-infringement of
15 * intellectual property rights. NXP Semiconductors assumes no responsibility
16 * or liability for the use of the software, conveys no license or rights under any
17 * patent, copyright, mask work right, or any other intellectual property rights in
18 * or to any products. NXP Semiconductors reserves the right to make changes
19 * in the software without notification. NXP Semiconductors also makes no
20 * representation or warranty that such application will be suitable for the
21 * specified use without further testing or modification.
22 *
23 * @par
24 * Permission to use, copy, modify, and distribute this software and its
25 * documentation is hereby granted, under NXP Semiconductors' and its
26 * licensor's relevant copyrights in the software, without fee, provided that it
27 * is used in conjunction with NXP Semiconductors microcontrollers. This
28 * copyright, permission, and disclaimer notice must appear in all copies of
29 * this code.
30 */
31
32 #include "chip.h"
33 #include "string.h"
34
35 /*****************************************************************************
36 * Private types/enumerations/variables
37 ****************************************************************************/
38
39 /*****************************************************************************
40 * Public types/enumerations/variables
41 ****************************************************************************/
42
43 /*****************************************************************************
44 * Private functions
45 ****************************************************************************/
46
47 /*****************************************************************************
48 * Public functions
49 ****************************************************************************/
50
51 /* Initializes the SD/MMC controller */
52 void Chip_SDIF_Init(LPC_SDMMC_T *pSDMMC)
53 {
54 Chip_Clock_EnableOpts(CLK_MX_SDIO, true, true, 1);
55 IP_SDMMC_Init(pSDMMC);
56 }
57
58 /* Shutdown the SD/MMC controller */
59 void Chip_SDIF_DeInit(LPC_SDMMC_T *pSDMMC)
60 {
61 IP_SDMMC_DeInit(pSDMMC);
62 Chip_Clock_Disable(CLK_MX_SDIO);
63 }
64
65 /* Returns the current SD status, clears pending ints, and disables all ints */
66 uint32_t Chip_SDIF_GetIntStatus(LPC_SDMMC_T *pSDMMC)
67 {
68 uint32_t status;
69
70 /* Get status and clear interrupts */
71 status = IP_SDMMC_GetRawIntStatus(pSDMMC);
72 IP_SDMMC_SetRawIntStatus(pSDMMC, status);
73 IP_SDMMC_SetIntMask(pSDMMC, 0);
74
75 return status;
76 }