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8#ifndef LINUX_MMC_CORE_H
9#define LINUX_MMC_CORE_H
10
11#include <linux/interrupt.h>
12#include <linux/device.h>
13
14struct request;
15struct mmc_data;
16struct mmc_request;
17
18struct mmc_command {
19 u32 opcode;
20 u32 arg;
21 u32 resp[4];
22 unsigned int flags;
23#define MMC_RSP_PRESENT (1 << 0)
24#define MMC_RSP_136 (1 << 1)
25#define MMC_RSP_CRC (1 << 2)
26#define MMC_RSP_BUSY (1 << 3)
27#define MMC_RSP_OPCODE (1 << 4)
28
29#define MMC_CMD_MASK (3 << 5)
30#define MMC_CMD_AC (0 << 5)
31#define MMC_CMD_ADTC (1 << 5)
32#define MMC_CMD_BC (2 << 5)
33#define MMC_CMD_BCR (3 << 5)
34
35#define MMC_RSP_SPI_S1 (1 << 7)
36#define MMC_RSP_SPI_S2 (1 << 8)
37#define MMC_RSP_SPI_B4 (1 << 9)
38#define MMC_RSP_SPI_BUSY (1 << 10)
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44
45#define MMC_RSP_NONE (0)
46#define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
47#define MMC_RSP_R1B (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE|MMC_RSP_BUSY)
48#define MMC_RSP_R2 (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC)
49#define MMC_RSP_R3 (MMC_RSP_PRESENT)
50#define MMC_RSP_R4 (MMC_RSP_PRESENT)
51#define MMC_RSP_R5 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
52#define MMC_RSP_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
53#define MMC_RSP_R7 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
54
55#define mmc_resp_type(cmd) ((cmd)->flags & (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC|MMC_RSP_BUSY|MMC_RSP_OPCODE))
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62#define MMC_RSP_SPI_R1 (MMC_RSP_SPI_S1)
63#define MMC_RSP_SPI_R1B (MMC_RSP_SPI_S1|MMC_RSP_SPI_BUSY)
64#define MMC_RSP_SPI_R2 (MMC_RSP_SPI_S1|MMC_RSP_SPI_S2)
65#define MMC_RSP_SPI_R3 (MMC_RSP_SPI_S1|MMC_RSP_SPI_B4)
66#define MMC_RSP_SPI_R4 (MMC_RSP_SPI_S1|MMC_RSP_SPI_B4)
67#define MMC_RSP_SPI_R5 (MMC_RSP_SPI_S1|MMC_RSP_SPI_S2)
68#define MMC_RSP_SPI_R7 (MMC_RSP_SPI_S1|MMC_RSP_SPI_B4)
69
70#define mmc_spi_resp_type(cmd) ((cmd)->flags & \
71 (MMC_RSP_SPI_S1|MMC_RSP_SPI_BUSY|MMC_RSP_SPI_S2|MMC_RSP_SPI_B4))
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76#define mmc_cmd_type(cmd) ((cmd)->flags & MMC_CMD_MASK)
77
78 unsigned int retries;
79 unsigned int error;
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95 struct mmc_data *data;
96 struct mmc_request *mrq;
97};
98
99struct mmc_data {
100 unsigned int timeout_ns;
101 unsigned int timeout_clks;
102 unsigned int blksz;
103 unsigned int blocks;
104 unsigned int error;
105 unsigned int flags;
106
107#define MMC_DATA_WRITE (1 << 8)
108#define MMC_DATA_READ (1 << 9)
109#define MMC_DATA_STREAM (1 << 10)
110
111 unsigned int bytes_xfered;
112
113 struct mmc_command *stop;
114 struct mmc_request *mrq;
115
116 unsigned int sg_len;
117 struct scatterlist *sg;
118};
119
120struct mmc_request {
121 struct mmc_command *cmd;
122 struct mmc_data *data;
123 struct mmc_command *stop;
124
125 void *done_data;
126 void (*done)(struct mmc_request *);
127};
128
129struct mmc_host;
130struct mmc_card;
131
132extern void mmc_wait_for_req(struct mmc_host *, struct mmc_request *);
133extern int mmc_wait_for_cmd(struct mmc_host *, struct mmc_command *, int);
134extern int mmc_wait_for_app_cmd(struct mmc_host *, struct mmc_card *,
135 struct mmc_command *, int);
136
137extern void mmc_set_data_timeout(struct mmc_data *, const struct mmc_card *);
138extern unsigned int mmc_align_data_size(struct mmc_card *, unsigned int);
139
140extern int __mmc_claim_host(struct mmc_host *host, atomic_t *abort);
141extern void mmc_release_host(struct mmc_host *host);
142extern int mmc_try_claim_host(struct mmc_host *host);
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150static inline void mmc_claim_host(struct mmc_host *host)
151{
152 __mmc_claim_host(host, NULL);
153}
154
155extern u32 mmc_vddrange_to_ocrmask(int vdd_min, int vdd_max);
156
157#endif
158