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68791a05fe
In some cases it is desirable to let the Broadway processor take complete control of hardware initially managed by 'mini'. Add a new IPC call to instruct 'mini' to relinquish control of the SD Host Controller. One immediate user of this IPC call is Linux on the Nintendo Wii which takes complete control of the SDHC hardware. Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
143 lines
3.7 KiB
C
143 lines
3.7 KiB
C
/*
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mini - a Free Software replacement for the Nintendo/BroadOn IOS.
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inter-processor communications
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Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcansoft.com>
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Copyright (C) 2008, 2009 Haxx Enterprises <bushing@gmail.com>
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Copyright (C) 2008, 2009 Sven Peter <svenpeter@gmail.com>
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Copyright (C) 2009 Andre Heider "dhewg" <dhewg@wiibrew.org>
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Copyright (C) 2009 John Kelley <wiidev@kelley.ca>
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# This code is licensed to you under the terms of the GNU GPL, version 2;
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# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
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*/
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#ifndef __IPC_H__
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#define __IPC_H__
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#include "types.h"
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/* For the sake of interface compatibility between mini and powerpc code,
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you should try to commit any enhancements you make back upstream so
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that they can be assigned a standard request number. Otherwise, if
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you are creating a new device, you MUST assign it a device ID >= 0x80.
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Likewise, if you add functionality to any of the existing drivers,
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your must assign it to a request ID >= 0x8000. This will prevent
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problems if a mismatch between ARM and PPC code occurs. Similarly,
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if you add functions, you should always add them to the end, to
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prevent someone from calling the wrong function.
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Even still, you are encouraged to add in sanity checks and version
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checking to prevent strange bugs or even data loss. --bushing */
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#define IPC_FAST 0x01
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#define IPC_SLOW 0x00
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#define IPC_DEV_SYS 0x00
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#define IPC_DEV_NAND 0x01
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#define IPC_DEV_SDHC 0x02
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#define IPC_DEV_KEYS 0x03
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#define IPC_DEV_AES 0x04
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#define IPC_DEV_BOOT2 0x05
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#define IPC_DEV_PPC 0x06
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#define IPC_DEV_SDMMC 0x07
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//#define IPC_DEV_USER0 0x80
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//#define IPC_DEV_USER1 0x81
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#define IPC_SYS_PING 0x0000
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#define IPC_SYS_JUMP 0x0001
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#define IPC_SYS_GETVERS 0x0002
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#define IPC_SYS_GETGITS 0x0003
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#define IPC_SYS_WRITE32 0x0100
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#define IPC_SYS_WRITE16 0x0101
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#define IPC_SYS_WRITE8 0x0102
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#define IPC_SYS_READ32 0x0103
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#define IPC_SYS_READ16 0x0104
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#define IPC_SYS_READ8 0x0105
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#define IPC_SYS_SET32 0x0106
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#define IPC_SYS_SET16 0x0107
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#define IPC_SYS_SET8 0x0108
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#define IPC_SYS_CLEAR32 0x0109
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#define IPC_SYS_CLEAR16 0x010a
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#define IPC_SYS_CLEAR8 0x010b
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#define IPC_SYS_MASK32 0x010c
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#define IPC_SYS_MASK16 0x010d
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#define IPC_SYS_MASK8 0x010e
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#define IPC_NAND_RESET 0x0000
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#define IPC_NAND_GETID 0x0001
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#define IPC_NAND_READ 0x0002
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#define IPC_NAND_WRITE 0x0003
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#define IPC_NAND_ERASE 0x0004
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#define IPC_NAND_STATUS 0x0005
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//#define IPC_NAND_USER0 0x8000
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//#define IPC_NAND_USER1 0x8001
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// etc.
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#define IPC_SDHC_DISCOVER 0x0000
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#define IPC_SDHC_EXIT 0x0001
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#define IPC_SDMMC_ACK 0x0000
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#define IPC_SDMMC_READ 0x0001
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#define IPC_SDMMC_WRITE 0x0002
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#define IPC_SDMMC_STATE 0x0003
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#define IPC_SDMMC_SIZE 0x0004
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#define IPC_KEYS_GETOTP 0x0000
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#define IPC_KEYS_GETEEP 0x0001
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#define IPC_AES_RESET 0x0000
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#define IPC_AES_SETIV 0x0001
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#define IPC_AES_SETKEY 0x0002
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#define IPC_AES_DECRYPT 0x0003
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#define IPC_BOOT2_RUN 0x0000
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#define IPC_BOOT2_TMD 0x0001
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#define IPC_PPC_BOOT 0x0000
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#define IPC_CODE (f,d,r) (((f)<<24)|((d)<<16)|(r))
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#define IPC_IN_SIZE 32
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#define IPC_OUT_SIZE 32
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#define IPC_SLOW_SIZE 128
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typedef struct {
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union {
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struct {
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u8 flags;
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u8 device;
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u16 req;
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};
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u32 code;
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};
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u32 tag;
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u32 args[6];
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} ipc_request;
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typedef const struct {
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char magic[3];
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char version;
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void *mem2_boundary;
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volatile ipc_request *ipc_in;
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u32 ipc_in_size;
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volatile ipc_request *ipc_out;
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u32 ipc_out_size;
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} ipc_infohdr;
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void ipc_irq(void);
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void ipc_initialize(void);
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void ipc_shutdown(void);
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void ipc_post(u32 code, u32 tag, u32 num_args, ...);
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void ipc_flush(void);
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u32 ipc_process_slow(void);
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// Enqueues a request in the slow in_queue, use this in IRQ context only.
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void ipc_enqueue_slow(u8 device, u16 req, u32 num_args, ...);
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#endif
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