1 files changed, 0 insertions, 67 deletions
diff --git a/qemu/roms/seabios/src/hw/dma.c b/qemu/roms/seabios/src/hw/dma.c
deleted file mode 100644
index 20c9fbb76..000000000
--- a/qemu/roms/seabios/src/hw/dma.c
+++ /dev/null
@@ -1,67 +0,0 @@
-// Code to support legacy Intel 8237 DMA chip.
-//
-// Copyright (C) 2008,2009  Kevin O'Connor <kevin@koconnor.net>
-// Copyright (C) 2002  MandrakeSoft S.A.
-//
-// This file may be distributed under the terms of the GNU LGPLv3 license.
-
-#include "util.h" // dma_setup
-#include "x86.h" // outb
-
-#define PORT_DMA_ADDR_2        0x0004
-#define PORT_DMA_CNT_2         0x0005
-#define PORT_DMA1_MASK_REG     0x000a
-#define PORT_DMA1_MODE_REG     0x000b
-#define PORT_DMA1_CLEAR_FF_REG 0x000c
-#define PORT_DMA1_MASTER_CLEAR 0x000d
-#define PORT_DMA_PAGE_2        0x0081
-#define PORT_DMA2_MASK_REG     0x00d4
-#define PORT_DMA2_MODE_REG     0x00d6
-#define PORT_DMA2_MASTER_CLEAR 0x00da
-
-// Setup the DMA controller for a floppy transfer.
-int
-dma_floppy(u32 addr, int count, int isWrite)
-{
-    // check for 64K boundary overrun
-    u16 end = count - 1;
-    u32 last_addr = addr + end;
-    if ((addr >> 16) != (last_addr >> 16))
-        return -1;
-
-    u8 mode_register = 0x46; // single mode, increment, autoinit disable,
-    if (isWrite)
-        mode_register = 0x4a;
-
-    outb(0x06, PORT_DMA1_MASK_REG);
-    outb(0x00, PORT_DMA1_CLEAR_FF_REG); // clear flip-flop
-    outb(addr, PORT_DMA_ADDR_2);
-    outb(addr>>8, PORT_DMA_ADDR_2);
-    outb(0x00, PORT_DMA1_CLEAR_FF_REG); // clear flip-flop
-    outb(end, PORT_DMA_CNT_2);
-    outb(end>>8, PORT_DMA_CNT_2);
-
-    // port 0b: DMA-1 Mode Register
-    // transfer type=write, channel 2
-    outb(mode_register, PORT_DMA1_MODE_REG);
-
-    // port 81: DMA-1 Page Register, channel 2
-    outb(addr>>16, PORT_DMA_PAGE_2);
-
-    outb(0x02, PORT_DMA1_MASK_REG); // unmask channel 2
-
-    return 0;
-}
-
-// Reset DMA controller
-void
-dma_setup(void)
-{
-    // first reset the DMA controllers
-    outb(0, PORT_DMA1_MASTER_CLEAR);
-    outb(0, PORT_DMA2_MASTER_CLEAR);
-
-    // then initialize the DMA controllers
-    outb(0xc0, PORT_DMA2_MODE_REG);
-    outb(0x00, PORT_DMA2_MASK_REG);
-}