diff options
Diffstat (limited to 'include/asm-m68k/mac_iop.h')
| -rw-r--r-- | include/asm-m68k/mac_iop.h | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/include/asm-m68k/mac_iop.h b/include/asm-m68k/mac_iop.h deleted file mode 100644 index a2c7e6fcca38..000000000000 --- a/include/asm-m68k/mac_iop.h +++ /dev/null @@ -1,162 +0,0 @@ -/* - * I/O Processor (IOP) defines and structures, mostly snagged from A/UX - * header files. - * - * The original header from which this was taken is copyrighted. I've done some - * rewriting (in fact my changes make this a bit more readable, IMHO) but some - * more should be done. - */ - -/* - * This is the base address of the IOPs. Use this as the address of - * a "struct iop" (see below) to see where the actual registers fall. - */ - -#define SCC_IOP_BASE_IIFX (0x50F04000) -#define ISM_IOP_BASE_IIFX (0x50F12000) - -#define SCC_IOP_BASE_QUADRA (0x50F0C000) -#define ISM_IOP_BASE_QUADRA (0x50F1E000) - -/* IOP status/control register bits: */ - -#define IOP_BYPASS 0x01 /* bypass-mode hardware access */ -#define IOP_AUTOINC 0x02 /* allow autoincrement of ramhi/lo */ -#define IOP_RUN 0x04 /* set to 0 to reset IOP chip */ -#define IOP_IRQ 0x08 /* generate IRQ to IOP if 1 */ -#define IOP_INT0 0x10 /* intr priority from IOP to host */ -#define IOP_INT1 0x20 /* intr priority from IOP to host */ -#define IOP_HWINT 0x40 /* IRQ from hardware; bypass mode only */ -#define IOP_DMAINACTIVE 0x80 /* no DMA request active; bypass mode only */ - -#define NUM_IOPS 2 -#define NUM_IOP_CHAN 7 -#define NUM_IOP_MSGS NUM_IOP_CHAN*8 -#define IOP_MSG_LEN 32 - -/* IOP reference numbers, used by the globally-visible iop_xxx functions */ - -#define IOP_NUM_SCC 0 -#define IOP_NUM_ISM 1 - -/* IOP channel states */ - -#define IOP_MSG_IDLE 0 /* idle */ -#define IOP_MSG_NEW 1 /* new message sent */ -#define IOP_MSG_RCVD 2 /* message received; processing */ -#define IOP_MSG_COMPLETE 3 /* message processing complete */ - -/* IOP message status codes */ - -#define IOP_MSGSTATUS_UNUSED 0 /* Unusued message structure */ -#define IOP_MSGSTATUS_WAITING 1 /* waiting for channel */ -#define IOP_MSGSTATUS_SENT 2 /* message sent, awaiting reply */ -#define IOP_MSGSTATUS_COMPLETE 3 /* message complete and reply rcvd */ -#define IOP_MSGSTATUS_UNSOL 6 /* message is unsolicited */ - -/* IOP memory addresses of the members of the mac_iop_kernel structure. */ - -#define IOP_ADDR_MAX_SEND_CHAN 0x0200 -#define IOP_ADDR_SEND_STATE 0x0201 -#define IOP_ADDR_PATCH_CTRL 0x021F -#define IOP_ADDR_SEND_MSG 0x0220 -#define IOP_ADDR_MAX_RECV_CHAN 0x0300 -#define IOP_ADDR_RECV_STATE 0x0301 -#define IOP_ADDR_ALIVE 0x031F -#define IOP_ADDR_RECV_MSG 0x0320 - -#ifndef __ASSEMBLY__ - -/* - * IOP Control registers, staggered because in usual Apple style they were - * too lazy to decode the A0 bit. This structure is assumed to begin at - * one of the xxx_IOP_BASE addresses given above. - */ - -struct mac_iop { - __u8 ram_addr_hi; /* shared RAM address hi byte */ - __u8 pad0; - __u8 ram_addr_lo; /* shared RAM address lo byte */ - __u8 pad1; - __u8 status_ctrl; /* status/control register */ - __u8 pad2[3]; - __u8 ram_data; /* RAM data byte at ramhi/lo */ - - __u8 pad3[23]; - - /* Bypass-mode hardware access registers */ - - union { - struct { /* SCC registers */ - __u8 sccb_cmd; /* SCC B command reg */ - __u8 pad4; - __u8 scca_cmd; /* SCC A command reg */ - __u8 pad5; - __u8 sccb_data; /* SCC B data */ - __u8 pad6; - __u8 scca_data; /* SCC A data */ - } scc_regs; - - struct { /* ISM registers */ - __u8 wdata; /* write a data byte */ - __u8 pad7; - __u8 wmark; /* write a mark byte */ - __u8 pad8; - __u8 wcrc; /* write 2-byte crc to disk */ - __u8 pad9; - __u8 wparams; /* write the param regs */ - __u8 pad10; - __u8 wphase; /* write the phase states & dirs */ - __u8 pad11; - __u8 wsetup; /* write the setup register */ - __u8 pad12; - __u8 wzeroes; /* mode reg: 1's clr bits, 0's are x */ - __u8 pad13; - __u8 wones; /* mode reg: 1's set bits, 0's are x */ - __u8 pad14; - __u8 rdata; /* read a data byte */ - __u8 pad15; - __u8 rmark; /* read a mark byte */ - __u8 pad16; - __u8 rerror; /* read the error register */ - __u8 pad17; - __u8 rparams; /* read the param regs */ - __u8 pad18; - __u8 rphase; /* read the phase states & dirs */ - __u8 pad19; - __u8 rsetup; /* read the setup register */ - __u8 pad20; - __u8 rmode; /* read the mode register */ - __u8 pad21; - __u8 rhandshake; /* read the handshake register */ - } ism_regs; - } b; -}; - -/* This structure is used to track IOP messages in the Linux kernel */ - -struct iop_msg { - struct iop_msg *next; /* next message in queue or NULL */ - uint iop_num; /* IOP number */ - uint channel; /* channel number */ - void *caller_priv; /* caller private data */ - int status; /* status of this message */ - __u8 message[IOP_MSG_LEN]; /* the message being sent/received */ - __u8 reply[IOP_MSG_LEN]; /* the reply to the message */ - void (*handler)(struct iop_msg *); - /* function to call when reply recvd */ -}; - -extern int iop_scc_present,iop_ism_present; - -extern int iop_listen(uint, uint, - void (*handler)(struct iop_msg *), - const char *); -extern int iop_send_message(uint, uint, void *, uint, __u8 *, - void (*)(struct iop_msg *)); -extern void iop_complete_message(struct iop_msg *); -extern void iop_upload_code(uint, __u8 *, uint, __u16); -extern void iop_download_code(uint, __u8 *, uint, __u16); -extern __u8 *iop_compare_code(uint, __u8 *, uint, __u16); - -#endif /* __ASSEMBLY__ */ |
