tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _AU1XMMC_H_
2#define _AU1XMMC_H_
3
4/* Hardware definitions */
5
6#define AU1XMMC_DESCRIPTOR_COUNT 1
7#define AU1XMMC_DESCRIPTOR_SIZE 2048
8
9#define AU1XMMC_OCR ( MMC_VDD_27_28 | MMC_VDD_28_29 | MMC_VDD_29_30 | \
10 MMC_VDD_30_31 | MMC_VDD_31_32 | MMC_VDD_32_33 | \
11 MMC_VDD_33_34 | MMC_VDD_34_35 | MMC_VDD_35_36)
12
13/* Easy access macros */
14
15#define HOST_STATUS(h) ((h)->iobase + SD_STATUS)
16#define HOST_CONFIG(h) ((h)->iobase + SD_CONFIG)
17#define HOST_ENABLE(h) ((h)->iobase + SD_ENABLE)
18#define HOST_TXPORT(h) ((h)->iobase + SD_TXPORT)
19#define HOST_RXPORT(h) ((h)->iobase + SD_RXPORT)
20#define HOST_CMDARG(h) ((h)->iobase + SD_CMDARG)
21#define HOST_BLKSIZE(h) ((h)->iobase + SD_BLKSIZE)
22#define HOST_CMD(h) ((h)->iobase + SD_CMD)
23#define HOST_CONFIG2(h) ((h)->iobase + SD_CONFIG2)
24#define HOST_TIMEOUT(h) ((h)->iobase + SD_TIMEOUT)
25#define HOST_DEBUG(h) ((h)->iobase + SD_DEBUG)
26
27#define DMA_CHANNEL(h) \
28 ( ((h)->flags & HOST_F_XMIT) ? (h)->tx_chan : (h)->rx_chan)
29
30/* This gives us a hard value for the stop command that we can write directly
31 * to the command register
32 */
33
34#define STOP_CMD (SD_CMD_RT_1B|SD_CMD_CT_7|(0xC << SD_CMD_CI_SHIFT)|SD_CMD_GO)
35
36/* This is the set of interrupts that we configure by default */
37
38#if 0
39#define AU1XMMC_INTERRUPTS (SD_CONFIG_SC | SD_CONFIG_DT | SD_CONFIG_DD | \
40 SD_CONFIG_RAT | SD_CONFIG_CR | SD_CONFIG_I)
41#endif
42
43#define AU1XMMC_INTERRUPTS (SD_CONFIG_SC | SD_CONFIG_DT | \
44 SD_CONFIG_RAT | SD_CONFIG_CR | SD_CONFIG_I)
45/* The poll event (looking for insert/remove events runs twice a second */
46#define AU1XMMC_DETECT_TIMEOUT (HZ/2)
47
48struct au1xmmc_host {
49 struct mmc_host *mmc;
50 struct mmc_request *mrq;
51
52 u32 id;
53
54 u32 flags;
55 u32 iobase;
56 u32 clock;
57 u32 bus_width;
58 u32 power_mode;
59
60 int status;
61
62 struct {
63 int len;
64 int dir;
65 } dma;
66
67 struct {
68 int index;
69 int offset;
70 int len;
71 } pio;
72
73 u32 tx_chan;
74 u32 rx_chan;
75
76 struct timer_list timer;
77 struct tasklet_struct finish_task;
78 struct tasklet_struct data_task;
79
80 spinlock_t lock;
81};
82
83/* Status flags used by the host structure */
84
85#define HOST_F_XMIT 0x0001
86#define HOST_F_RECV 0x0002
87#define HOST_F_DMA 0x0010
88#define HOST_F_ACTIVE 0x0100
89#define HOST_F_STOP 0x1000
90
91#define HOST_S_IDLE 0x0001
92#define HOST_S_CMD 0x0002
93#define HOST_S_DATA 0x0003
94#define HOST_S_STOP 0x0004
95
96#endif