memstick: fix MSProHG 8-bit interface mode support

- 8-bit interface mode never worked properly.  The only adapter I have
  which supports the 8b mode (the Jmicron) had some problems with its
  clock wiring and they discovered it only now.  We also discovered that
  ProHG media is more sensitive to the ordering of initialization
  commands.

- Make the driver fall back to highest supported mode instead of always
  falling back to serial.  The driver will attempt the switch to 8b mode
  for any new MSPro card, but not all of them support it.  Previously,
  these new cards ended up in serial mode, which is not the best idea
  (they work fine with 4b, after all).

- Edit some macros for better conformance to Sony documentation

Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 49 insertions, 48 deletions

diff --git a/include/linux/memstick.h b/include/linux/memstick.h
index a9f998a3f48..d0c37e68223 100644
--- a/include/linux/memstick.h
+++ b/include/linux/memstick.h
@@ -21,30 +21,30 @@
 struct ms_status_register {
 	unsigned char reserved;
 	unsigned char interrupt;
-#define MEMSTICK_INT_CMDNAK             0x0001
-#define MEMSTICK_INT_IOREQ              0x0008
-#define MEMSTICK_INT_IOBREQ             0x0010
-#define MEMSTICK_INT_BREQ               0x0020
-#define MEMSTICK_INT_ERR                0x0040
-#define MEMSTICK_INT_CED                0x0080
+#define MEMSTICK_INT_CMDNAK 0x01
+#define MEMSTICK_INT_IOREQ  0x08
+#define MEMSTICK_INT_IOBREQ 0x10
+#define MEMSTICK_INT_BREQ   0x20
+#define MEMSTICK_INT_ERR    0x40
+#define MEMSTICK_INT_CED    0x80
 
 	unsigned char status0;
-#define MEMSTICK_STATUS0_WP             0x0001
-#define MEMSTICK_STATUS0_SL             0x0002
-#define MEMSTICK_STATUS0_BF             0x0010
-#define MEMSTICK_STATUS0_BE             0x0020
-#define MEMSTICK_STATUS0_FB0            0x0040
-#define MEMSTICK_STATUS0_MB             0x0080
+#define MEMSTICK_STATUS0_WP  0x01
+#define MEMSTICK_STATUS0_SL  0x02
+#define MEMSTICK_STATUS0_BF  0x10
+#define MEMSTICK_STATUS0_BE  0x20
+#define MEMSTICK_STATUS0_FB0 0x40
+#define MEMSTICK_STATUS0_MB  0x80
 
 	unsigned char status1;
-#define MEMSTICK_STATUS1_UCFG           0x0001
-#define MEMSTICK_STATUS1_FGER           0x0002
-#define MEMSTICK_STATUS1_UCEX           0x0004
-#define MEMSTICK_STATUS1_EXER           0x0008
-#define MEMSTICK_STATUS1_UCDT           0x0010
-#define MEMSTICK_STATUS1_DTER           0x0020
-#define MEMSTICK_STATUS1_FBI            0x0040
-#define MEMSTICK_STATUS1_MB             0x0080
+#define MEMSTICK_STATUS1_UCFG 0x01
+#define MEMSTICK_STATUS1_FGER 0x02
+#define MEMSTICK_STATUS1_UCEX 0x04
+#define MEMSTICK_STATUS1_EXER 0x08
+#define MEMSTICK_STATUS1_UCDT 0x10
+#define MEMSTICK_STATUS1_DTER 0x20
+#define MEMSTICK_STATUS1_FB1  0x40
+#define MEMSTICK_STATUS1_MB   0x80
 } __attribute__((packed));
 
 struct ms_id_register {
@@ -56,32 +56,32 @@ struct ms_id_register {
 
 struct ms_param_register {
 	unsigned char system;
-#define MEMSTICK_SYS_ATEN 0xc0
-#define MEMSTICK_SYS_BAMD 0x80
 #define MEMSTICK_SYS_PAM  0x08
+#define MEMSTICK_SYS_BAMD 0x80
 
 	unsigned char block_address_msb;
 	unsigned short block_address;
 	unsigned char cp;
-#define MEMSTICK_CP_BLOCK               0x0000
-#define MEMSTICK_CP_PAGE                0x0020
-#define MEMSTICK_CP_EXTRA               0x0040
-#define MEMSTICK_CP_OVERWRITE           0x0080
+#define MEMSTICK_CP_BLOCK     0x00
+#define MEMSTICK_CP_PAGE      0x20
+#define MEMSTICK_CP_EXTRA     0x40
+#define MEMSTICK_CP_OVERWRITE 0x80
 
 	unsigned char page_address;
 } __attribute__((packed));
 
 struct ms_extra_data_register {
 	unsigned char  overwrite_flag;
-#define MEMSTICK_OVERWRITE_UPDATA       0x0010
-#define MEMSTICK_OVERWRITE_PAGE         0x0060
-#define MEMSTICK_OVERWRITE_BLOCK        0x0080
+#define MEMSTICK_OVERWRITE_UDST  0x10
+#define MEMSTICK_OVERWRITE_PGST1 0x20
+#define MEMSTICK_OVERWRITE_PGST0 0x40
+#define MEMSTICK_OVERWRITE_BKST  0x80
 
 	unsigned char  management_flag;
-#define MEMSTICK_MANAGEMENT_SYSTEM      0x0004
-#define MEMSTICK_MANAGEMENT_TRANS_TABLE 0x0008
-#define MEMSTICK_MANAGEMENT_COPY        0x0010
-#define MEMSTICK_MANAGEMENT_ACCESS      0x0020
+#define MEMSTICK_MANAGEMENT_SYSFLG 0x04
+#define MEMSTICK_MANAGEMENT_ATFLG  0x08
+#define MEMSTICK_MANAGEMENT_SCMS1  0x10
+#define MEMSTICK_MANAGEMENT_SCMS0  0x20
 
 	unsigned short logical_address;
 } __attribute__((packed));
@@ -96,9 +96,9 @@ struct ms_register {
 
 struct mspro_param_register {
 	unsigned char  system;
-#define MEMSTICK_SYS_SERIAL 0x80
 #define MEMSTICK_SYS_PAR4   0x00
 #define MEMSTICK_SYS_PAR8   0x40
+#define MEMSTICK_SYS_SERIAL 0x80
 
 	unsigned short data_count;
 	unsigned int   data_address;
@@ -147,7 +147,7 @@ struct ms_register_addr {
 	unsigned char w_length;
 } __attribute__((packed));
 
-enum {
+enum memstick_tpc {
 	MS_TPC_READ_MG_STATUS   = 0x01,
 	MS_TPC_READ_LONG_DATA   = 0x02,
 	MS_TPC_READ_SHORT_DATA  = 0x03,
@@ -167,7 +167,7 @@ enum {
 	MS_TPC_SET_CMD          = 0x0e
 };
 
-enum {
+enum memstick_command {
 	MS_CMD_BLOCK_END       = 0x33,
 	MS_CMD_RESET           = 0x3c,
 	MS_CMD_BLOCK_WRITE     = 0x55,
@@ -201,8 +201,6 @@ enum {
 
 /*** Driver structures and functions ***/
 
-#define MEMSTICK_PART_SHIFT 3
-
 enum memstick_param { MEMSTICK_POWER = 1, MEMSTICK_INTERFACE };
 
 #define MEMSTICK_POWER_OFF 0
@@ -215,24 +213,27 @@ enum memstick_param { MEMSTICK_POWER = 1, MEMSTICK_INTERFACE };
 struct memstick_host;
 struct memstick_driver;
 
+struct memstick_device_id {
+	unsigned char match_flags;
 #define MEMSTICK_MATCH_ALL            0x01
 
+	unsigned char type;
 #define MEMSTICK_TYPE_LEGACY          0xff
 #define MEMSTICK_TYPE_DUO             0x00
 #define MEMSTICK_TYPE_PRO             0x01
 
+	unsigned char category;
 #define MEMSTICK_CATEGORY_STORAGE     0xff
 #define MEMSTICK_CATEGORY_STORAGE_DUO 0x00
+#define MEMSTICK_CATEGORY_IO          0x01
+#define MEMSTICK_CATEGORY_IO_PRO      0x10
 
-#define MEMSTICK_CLASS_GENERIC        0xff
-#define MEMSTICK_CLASS_GENERIC_DUO    0x00
-
-
-struct memstick_device_id {
-	unsigned char match_flags;
-	unsigned char type;
-	unsigned char category;
 	unsigned char class;
+#define MEMSTICK_CLASS_FLASH          0xff
+#define MEMSTICK_CLASS_DUO            0x00
+#define MEMSTICK_CLASS_ROM            0x01
+#define MEMSTICK_CLASS_RO             0x02
+#define MEMSTICK_CLASS_WP             0x03
 };
 
 struct memstick_request {
@@ -319,9 +320,9 @@ void memstick_suspend_host(struct memstick_host *host);
 void memstick_resume_host(struct memstick_host *host);
 
 void memstick_init_req_sg(struct memstick_request *mrq, unsigned char tpc,
-			  struct scatterlist *sg);
+			  const struct scatterlist *sg);
 void memstick_init_req(struct memstick_request *mrq, unsigned char tpc,
-		       void *buf, size_t length);
+		       const void *buf, size_t length);
 int memstick_next_req(struct memstick_host *host,
 		      struct memstick_request **mrq);
 void memstick_new_req(struct memstick_host *host);