diff options
Diffstat (limited to 'qemu/include/hw/ppc/mac_dbdma.h')
| -rw-r--r-- | qemu/include/hw/ppc/mac_dbdma.h | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/qemu/include/hw/ppc/mac_dbdma.h b/qemu/include/hw/ppc/mac_dbdma.h deleted file mode 100644 index 0cce4e8bb..000000000 --- a/qemu/include/hw/ppc/mac_dbdma.h +++ /dev/null @@ -1,174 +0,0 @@ -/* - * Copyright (c) 2009 Laurent Vivier - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#ifndef HW_MAC_DBDMA_H -#define HW_MAC_DBDMA_H 1 - -#include "exec/memory.h" -#include "qemu/iov.h" - -typedef struct DBDMA_io DBDMA_io; - -typedef void (*DBDMA_flush)(DBDMA_io *io); -typedef void (*DBDMA_rw)(DBDMA_io *io); -typedef void (*DBDMA_end)(DBDMA_io *io); -struct DBDMA_io { - void *opaque; - void *channel; - hwaddr addr; - int len; - int is_last; - int is_dma_out; - DBDMA_end dma_end; - /* DMA is in progress, don't start another one */ - bool processing; - /* unaligned last sector of a request */ - uint8_t head_remainder[0x200]; - uint8_t tail_remainder[0x200]; - QEMUIOVector iov; -}; - -/* - * DBDMA control/status registers. All little-endian. - */ - -#define DBDMA_CONTROL 0x00 -#define DBDMA_STATUS 0x01 -#define DBDMA_CMDPTR_HI 0x02 -#define DBDMA_CMDPTR_LO 0x03 -#define DBDMA_INTR_SEL 0x04 -#define DBDMA_BRANCH_SEL 0x05 -#define DBDMA_WAIT_SEL 0x06 -#define DBDMA_XFER_MODE 0x07 -#define DBDMA_DATA2PTR_HI 0x08 -#define DBDMA_DATA2PTR_LO 0x09 -#define DBDMA_RES1 0x0A -#define DBDMA_ADDRESS_HI 0x0B -#define DBDMA_BRANCH_ADDR_HI 0x0C -#define DBDMA_RES2 0x0D -#define DBDMA_RES3 0x0E -#define DBDMA_RES4 0x0F - -#define DBDMA_REGS 16 -#define DBDMA_SIZE (DBDMA_REGS * sizeof(uint32_t)) - -#define DBDMA_CHANNEL_SHIFT 7 -#define DBDMA_CHANNEL_SIZE (1 << DBDMA_CHANNEL_SHIFT) - -#define DBDMA_CHANNELS (0x1000 >> DBDMA_CHANNEL_SHIFT) - -/* Bits in control and status registers */ - -#define RUN 0x8000 -#define PAUSE 0x4000 -#define FLUSH 0x2000 -#define WAKE 0x1000 -#define DEAD 0x0800 -#define ACTIVE 0x0400 -#define BT 0x0100 -#define DEVSTAT 0x00ff - -/* - * DBDMA command structure. These fields are all little-endian! - */ - -typedef struct dbdma_cmd { - uint16_t req_count; /* requested byte transfer count */ - uint16_t command; /* command word (has bit-fields) */ - uint32_t phy_addr; /* physical data address */ - uint32_t cmd_dep; /* command-dependent field */ - uint16_t res_count; /* residual count after completion */ - uint16_t xfer_status; /* transfer status */ -} dbdma_cmd; - -/* DBDMA command values in command field */ - -#define COMMAND_MASK 0xf000 -#define OUTPUT_MORE 0x0000 /* transfer memory data to stream */ -#define OUTPUT_LAST 0x1000 /* ditto followed by end marker */ -#define INPUT_MORE 0x2000 /* transfer stream data to memory */ -#define INPUT_LAST 0x3000 /* ditto, expect end marker */ -#define STORE_WORD 0x4000 /* write word (4 bytes) to device reg */ -#define LOAD_WORD 0x5000 /* read word (4 bytes) from device reg */ -#define DBDMA_NOP 0x6000 /* do nothing */ -#define DBDMA_STOP 0x7000 /* suspend processing */ - -/* Key values in command field */ - -#define KEY_MASK 0x0700 -#define KEY_STREAM0 0x0000 /* usual data stream */ -#define KEY_STREAM1 0x0100 /* control/status stream */ -#define KEY_STREAM2 0x0200 /* device-dependent stream */ -#define KEY_STREAM3 0x0300 /* device-dependent stream */ -#define KEY_STREAM4 0x0400 /* reserved */ -#define KEY_REGS 0x0500 /* device register space */ -#define KEY_SYSTEM 0x0600 /* system memory-mapped space */ -#define KEY_DEVICE 0x0700 /* device memory-mapped space */ - -/* Interrupt control values in command field */ - -#define INTR_MASK 0x0030 -#define INTR_NEVER 0x0000 /* don't interrupt */ -#define INTR_IFSET 0x0010 /* intr if condition bit is 1 */ -#define INTR_IFCLR 0x0020 /* intr if condition bit is 0 */ -#define INTR_ALWAYS 0x0030 /* always interrupt */ - -/* Branch control values in command field */ - -#define BR_MASK 0x000c -#define BR_NEVER 0x0000 /* don't branch */ -#define BR_IFSET 0x0004 /* branch if condition bit is 1 */ -#define BR_IFCLR 0x0008 /* branch if condition bit is 0 */ -#define BR_ALWAYS 0x000c /* always branch */ - -/* Wait control values in command field */ - -#define WAIT_MASK 0x0003 -#define WAIT_NEVER 0x0000 /* don't wait */ -#define WAIT_IFSET 0x0001 /* wait if condition bit is 1 */ -#define WAIT_IFCLR 0x0002 /* wait if condition bit is 0 */ -#define WAIT_ALWAYS 0x0003 /* always wait */ - -typedef struct DBDMA_channel { - int channel; - uint32_t regs[DBDMA_REGS]; - qemu_irq irq; - DBDMA_io io; - DBDMA_rw rw; - DBDMA_flush flush; - dbdma_cmd current; -} DBDMA_channel; - -typedef struct { - MemoryRegion mem; - DBDMA_channel channels[DBDMA_CHANNELS]; - QEMUBH *bh; -} DBDMAState; - -/* Externally callable functions */ - -void DBDMA_register_channel(void *dbdma, int nchan, qemu_irq irq, - DBDMA_rw rw, DBDMA_flush flush, - void *opaque); -void DBDMA_kick(DBDMAState *dbdma); -void* DBDMA_init (MemoryRegion **dbdma_mem); - -#endif |