Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/asm-alpha/floppy.h b/include/asm-alpha/floppy.h
new file mode 100644
index 0000000..289a00d
--- /dev/null
+++ b/include/asm-alpha/floppy.h
@@ -0,0 +1,119 @@
+/*
+ * Architecture specific parts of the Floppy driver
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995
+ */
+#ifndef __ASM_ALPHA_FLOPPY_H
+#define __ASM_ALPHA_FLOPPY_H
+
+#include <linux/config.h>
+
+#define fd_inb(port) inb_p(port)
+#define fd_outb(value,port) outb_p(value,port)
+
+#define fd_enable_dma() enable_dma(FLOPPY_DMA)
+#define fd_disable_dma() disable_dma(FLOPPY_DMA)
+#define fd_request_dma() request_dma(FLOPPY_DMA,"floppy")
+#define fd_free_dma() free_dma(FLOPPY_DMA)
+#define fd_clear_dma_ff() clear_dma_ff(FLOPPY_DMA)
+#define fd_set_dma_mode(mode) set_dma_mode(FLOPPY_DMA,mode)
+#define fd_set_dma_addr(addr) set_dma_addr(FLOPPY_DMA,virt_to_bus(addr))
+#define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA,count)
+#define fd_enable_irq() enable_irq(FLOPPY_IRQ)
+#define fd_disable_irq() disable_irq(FLOPPY_IRQ)
+#define fd_cacheflush(addr,size) /* nothing */
+#define fd_request_irq() request_irq(FLOPPY_IRQ, floppy_interrupt, \
+ SA_INTERRUPT|SA_SAMPLE_RANDOM, \
+ "floppy", NULL)
+#define fd_free_irq() free_irq(FLOPPY_IRQ, NULL);
+
+#ifdef CONFIG_PCI
+
+#include <linux/pci.h>
+
+#define fd_dma_setup(addr,size,mode,io) alpha_fd_dma_setup(addr,size,mode,io)
+
+static __inline__ int
+alpha_fd_dma_setup(char *addr, unsigned long size, int mode, int io)
+{
+ static unsigned long prev_size;
+ static dma_addr_t bus_addr = 0;
+ static char *prev_addr;
+ static int prev_dir;
+ int dir;
+
+ dir = (mode != DMA_MODE_READ) ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE;
+
+ if (bus_addr
+ && (addr != prev_addr || size != prev_size || dir != prev_dir)) {
+ /* different from last time -- unmap prev */
+ pci_unmap_single(isa_bridge, bus_addr, prev_size, prev_dir);
+ bus_addr = 0;
+ }
+
+ if (!bus_addr) /* need to map it */
+ bus_addr = pci_map_single(isa_bridge, addr, size, dir);
+
+ /* remember this one as prev */
+ prev_addr = addr;
+ prev_size = size;
+ prev_dir = dir;
+
+ fd_clear_dma_ff();
+ fd_cacheflush(addr, size);
+ fd_set_dma_mode(mode);
+ set_dma_addr(FLOPPY_DMA, bus_addr);
+ fd_set_dma_count(size);
+ virtual_dma_port = io;
+ fd_enable_dma();
+
+ return 0;
+}
+
+#endif /* CONFIG_PCI */
+
+__inline__ void virtual_dma_init(void)
+{
+ /* Nothing to do on an Alpha */
+}
+
+static int FDC1 = 0x3f0;
+static int FDC2 = -1;
+
+/*
+ * Again, the CMOS information doesn't work on the alpha..
+ */
+#define FLOPPY0_TYPE 6
+#define FLOPPY1_TYPE 0
+
+#define N_FDC 2
+#define N_DRIVE 8
+
+#define FLOPPY_MOTOR_MASK 0xf0
+
+/*
+ * Most Alphas have no problems with floppy DMA crossing 64k borders,
+ * except for certain ones, like XL and RUFFIAN.
+ *
+ * However, the test is simple and fast, and this *is* floppy, after all,
+ * so we do it for all platforms, just to make sure.
+ *
+ * This is advantageous in other circumstances as well, as in moving
+ * about the PCI DMA windows and forcing the floppy to start doing
+ * scatter-gather when it never had before, and there *is* a problem
+ * on that platform... ;-}
+ */
+
+static inline unsigned long CROSS_64KB(void *a, unsigned long s)
+{
+ unsigned long p = (unsigned long)a;
+ return ((p + s - 1) ^ p) & ~0xffffUL;
+}
+
+#define EXTRA_FLOPPY_PARAMS
+
+#endif /* __ASM_ALPHA_FLOPPY_H */