diff options
author | Tejun Heo <tj@kernel.org> | 2009-04-28 00:06:14 -0400 |
---|---|---|
committer | Jens Axboe <jens.axboe@oracle.com> | 2009-04-28 02:14:51 -0400 |
commit | eec9462088a26c046d4db3100796a340a50890b8 (patch) | |
tree | 7038abaee44acf1498ede878257ea30f7ebb3c40 /include | |
parent | e138b4e08ef65771000fbe6d93d67e3960ff862b (diff) |
mg_disk: fold mg_disk.h into mg_disk.c
include/linux/mg_disk.h is used only by drivers/block/mg_disk.c. No
reason to put it in a separate header. Fold it into mg_disk.c.
[ Impact: cleanup ]
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: unsik Kim <donari75@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/mg_disk.h | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/include/linux/mg_disk.h b/include/linux/mg_disk.h deleted file mode 100644 index 1f76b1ebf627..000000000000 --- a/include/linux/mg_disk.h +++ /dev/null | |||
@@ -1,206 +0,0 @@ | |||
1 | /* | ||
2 | * include/linux/mg_disk.c | ||
3 | * | ||
4 | * Support for the mGine m[g]flash IO mode. | ||
5 | * Based on legacy hd.c | ||
6 | * | ||
7 | * (c) 2008 mGine Co.,LTD | ||
8 | * (c) 2008 unsik Kim <donari75@gmail.com> | ||
9 | * | ||
10 | * This program is free software; you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License version 2 as | ||
12 | * published by the Free Software Foundation. | ||
13 | */ | ||
14 | |||
15 | #ifndef __MG_DISK_H__ | ||
16 | #define __MG_DISK_H__ | ||
17 | |||
18 | #include <linux/blkdev.h> | ||
19 | #include <linux/ata.h> | ||
20 | |||
21 | /* name for block device */ | ||
22 | #define MG_DISK_NAME "mgd" | ||
23 | /* name for platform device */ | ||
24 | #define MG_DEV_NAME "mg_disk" | ||
25 | |||
26 | #define MG_DISK_MAJ 0 | ||
27 | #define MG_DISK_MAX_PART 16 | ||
28 | #define MG_SECTOR_SIZE 512 | ||
29 | #define MG_MAX_SECTS 256 | ||
30 | |||
31 | /* Register offsets */ | ||
32 | #define MG_BUFF_OFFSET 0x8000 | ||
33 | #define MG_STORAGE_BUFFER_SIZE 0x200 | ||
34 | #define MG_REG_OFFSET 0xC000 | ||
35 | #define MG_REG_FEATURE (MG_REG_OFFSET + 2) /* write case */ | ||
36 | #define MG_REG_ERROR (MG_REG_OFFSET + 2) /* read case */ | ||
37 | #define MG_REG_SECT_CNT (MG_REG_OFFSET + 4) | ||
38 | #define MG_REG_SECT_NUM (MG_REG_OFFSET + 6) | ||
39 | #define MG_REG_CYL_LOW (MG_REG_OFFSET + 8) | ||
40 | #define MG_REG_CYL_HIGH (MG_REG_OFFSET + 0xA) | ||
41 | #define MG_REG_DRV_HEAD (MG_REG_OFFSET + 0xC) | ||
42 | #define MG_REG_COMMAND (MG_REG_OFFSET + 0xE) /* write case */ | ||
43 | #define MG_REG_STATUS (MG_REG_OFFSET + 0xE) /* read case */ | ||
44 | #define MG_REG_DRV_CTRL (MG_REG_OFFSET + 0x10) | ||
45 | #define MG_REG_BURST_CTRL (MG_REG_OFFSET + 0x12) | ||
46 | |||
47 | /* "Drive Select/Head Register" bit values */ | ||
48 | #define MG_REG_HEAD_MUST_BE_ON 0xA0 /* These 2 bits are always on */ | ||
49 | #define MG_REG_HEAD_DRIVE_MASTER (0x00 | MG_REG_HEAD_MUST_BE_ON) | ||
50 | #define MG_REG_HEAD_DRIVE_SLAVE (0x10 | MG_REG_HEAD_MUST_BE_ON) | ||
51 | #define MG_REG_HEAD_LBA_MODE (0x40 | MG_REG_HEAD_MUST_BE_ON) | ||
52 | |||
53 | |||
54 | /* "Device Control Register" bit values */ | ||
55 | #define MG_REG_CTRL_INTR_ENABLE 0x0 | ||
56 | #define MG_REG_CTRL_INTR_DISABLE (0x1<<1) | ||
57 | #define MG_REG_CTRL_RESET (0x1<<2) | ||
58 | #define MG_REG_CTRL_INTR_POLA_ACTIVE_HIGH 0x0 | ||
59 | #define MG_REG_CTRL_INTR_POLA_ACTIVE_LOW (0x1<<4) | ||
60 | #define MG_REG_CTRL_DPD_POLA_ACTIVE_LOW 0x0 | ||
61 | #define MG_REG_CTRL_DPD_POLA_ACTIVE_HIGH (0x1<<5) | ||
62 | #define MG_REG_CTRL_DPD_DISABLE 0x0 | ||
63 | #define MG_REG_CTRL_DPD_ENABLE (0x1<<6) | ||
64 | |||
65 | /* Status register bit */ | ||
66 | /* error bit in status register */ | ||
67 | #define MG_REG_STATUS_BIT_ERROR 0x01 | ||
68 | /* corrected error in status register */ | ||
69 | #define MG_REG_STATUS_BIT_CORRECTED_ERROR 0x04 | ||
70 | /* data request bit in status register */ | ||
71 | #define MG_REG_STATUS_BIT_DATA_REQ 0x08 | ||
72 | /* DSC - Drive Seek Complete */ | ||
73 | #define MG_REG_STATUS_BIT_SEEK_DONE 0x10 | ||
74 | /* DWF - Drive Write Fault */ | ||
75 | #define MG_REG_STATUS_BIT_WRITE_FAULT 0x20 | ||
76 | #define MG_REG_STATUS_BIT_READY 0x40 | ||
77 | #define MG_REG_STATUS_BIT_BUSY 0x80 | ||
78 | |||
79 | /* handy status */ | ||
80 | #define MG_STAT_READY (MG_REG_STATUS_BIT_READY | MG_REG_STATUS_BIT_SEEK_DONE) | ||
81 | #define MG_READY_OK(s) (((s) & (MG_STAT_READY | \ | ||
82 | (MG_REG_STATUS_BIT_BUSY | \ | ||
83 | MG_REG_STATUS_BIT_WRITE_FAULT | \ | ||
84 | MG_REG_STATUS_BIT_ERROR))) == MG_STAT_READY) | ||
85 | |||
86 | /* Error register */ | ||
87 | #define MG_REG_ERR_AMNF 0x01 | ||
88 | #define MG_REG_ERR_ABRT 0x04 | ||
89 | #define MG_REG_ERR_IDNF 0x10 | ||
90 | #define MG_REG_ERR_UNC 0x40 | ||
91 | #define MG_REG_ERR_BBK 0x80 | ||
92 | |||
93 | /* error code for others */ | ||
94 | #define MG_ERR_NONE 0 | ||
95 | #define MG_ERR_TIMEOUT 0x100 | ||
96 | #define MG_ERR_INIT_STAT 0x101 | ||
97 | #define MG_ERR_TRANSLATION 0x102 | ||
98 | #define MG_ERR_CTRL_RST 0x103 | ||
99 | #define MG_ERR_INV_STAT 0x104 | ||
100 | #define MG_ERR_RSTOUT 0x105 | ||
101 | |||
102 | #define MG_MAX_ERRORS 6 /* Max read/write errors */ | ||
103 | |||
104 | /* command */ | ||
105 | #define MG_CMD_RD 0x20 | ||
106 | #define MG_CMD_WR 0x30 | ||
107 | #define MG_CMD_SLEEP 0x99 | ||
108 | #define MG_CMD_WAKEUP 0xC3 | ||
109 | #define MG_CMD_ID 0xEC | ||
110 | #define MG_CMD_WR_CONF 0x3C | ||
111 | #define MG_CMD_RD_CONF 0x40 | ||
112 | |||
113 | /* operation mode */ | ||
114 | #define MG_OP_CASCADE (1 << 0) | ||
115 | #define MG_OP_CASCADE_SYNC_RD (1 << 1) | ||
116 | #define MG_OP_CASCADE_SYNC_WR (1 << 2) | ||
117 | #define MG_OP_INTERLEAVE (1 << 3) | ||
118 | |||
119 | /* synchronous */ | ||
120 | #define MG_BURST_LAT_4 (3 << 4) | ||
121 | #define MG_BURST_LAT_5 (4 << 4) | ||
122 | #define MG_BURST_LAT_6 (5 << 4) | ||
123 | #define MG_BURST_LAT_7 (6 << 4) | ||
124 | #define MG_BURST_LAT_8 (7 << 4) | ||
125 | #define MG_BURST_LEN_4 (1 << 1) | ||
126 | #define MG_BURST_LEN_8 (2 << 1) | ||
127 | #define MG_BURST_LEN_16 (3 << 1) | ||
128 | #define MG_BURST_LEN_32 (4 << 1) | ||
129 | #define MG_BURST_LEN_CONT (0 << 1) | ||
130 | |||
131 | /* timeout value (unit: ms) */ | ||
132 | #define MG_TMAX_CONF_TO_CMD 1 | ||
133 | #define MG_TMAX_WAIT_RD_DRQ 10 | ||
134 | #define MG_TMAX_WAIT_WR_DRQ 500 | ||
135 | #define MG_TMAX_RST_TO_BUSY 10 | ||
136 | #define MG_TMAX_HDRST_TO_RDY 500 | ||
137 | #define MG_TMAX_SWRST_TO_RDY 500 | ||
138 | #define MG_TMAX_RSTOUT 3000 | ||
139 | |||
140 | /* device attribution */ | ||
141 | /* use mflash as boot device */ | ||
142 | #define MG_BOOT_DEV (1 << 0) | ||
143 | /* use mflash as storage device */ | ||
144 | #define MG_STORAGE_DEV (1 << 1) | ||
145 | /* same as MG_STORAGE_DEV, but bootloader already done reset sequence */ | ||
146 | #define MG_STORAGE_DEV_SKIP_RST (1 << 2) | ||
147 | |||
148 | #define MG_DEV_MASK (MG_BOOT_DEV | MG_STORAGE_DEV | MG_STORAGE_DEV_SKIP_RST) | ||
149 | |||
150 | /* names of GPIO resource */ | ||
151 | #define MG_RST_PIN "mg_rst" | ||
152 | /* except MG_BOOT_DEV, reset-out pin should be assigned */ | ||
153 | #define MG_RSTOUT_PIN "mg_rstout" | ||
154 | |||
155 | /* private driver data */ | ||
156 | struct mg_drv_data { | ||
157 | /* disk resource */ | ||
158 | u32 use_polling; | ||
159 | |||
160 | /* device attribution */ | ||
161 | u32 dev_attr; | ||
162 | |||
163 | /* internally used */ | ||
164 | struct mg_host *host; | ||
165 | }; | ||
166 | |||
167 | /* main structure for mflash driver */ | ||
168 | struct mg_host { | ||
169 | struct device *dev; | ||
170 | |||
171 | struct request_queue *breq; | ||
172 | spinlock_t lock; | ||
173 | struct gendisk *gd; | ||
174 | |||
175 | struct timer_list timer; | ||
176 | void (*mg_do_intr) (struct mg_host *); | ||
177 | |||
178 | u16 id[ATA_ID_WORDS]; | ||
179 | |||
180 | u16 cyls; | ||
181 | u16 heads; | ||
182 | u16 sectors; | ||
183 | u32 n_sectors; | ||
184 | u32 nres_sectors; | ||
185 | |||
186 | void __iomem *dev_base; | ||
187 | unsigned int irq; | ||
188 | unsigned int rst; | ||
189 | unsigned int rstout; | ||
190 | |||
191 | u32 major; | ||
192 | u32 error; | ||
193 | }; | ||
194 | |||
195 | /* | ||
196 | * Debugging macro and defines | ||
197 | */ | ||
198 | #undef DO_MG_DEBUG | ||
199 | #ifdef DO_MG_DEBUG | ||
200 | # define MG_DBG(fmt, args...) \ | ||
201 | printk(KERN_DEBUG "%s:%d "fmt, __func__, __LINE__, ##args) | ||
202 | #else /* CONFIG_MG_DEBUG */ | ||
203 | # define MG_DBG(fmt, args...) do { } while (0) | ||
204 | #endif /* CONFIG_MG_DEBUG */ | ||
205 | |||
206 | #endif | ||