Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 175 insertions, 0 deletions

diff --git a/include/asm-sparc64/parport.h b/include/asm-sparc64/parport.h
new file mode 100644
index 000000000000..ab88349ddadc
--- /dev/null
+++ b/include/asm-sparc64/parport.h
@@ -0,0 +1,175 @@
+/* $Id: parport.h,v 1.11 2001/05/11 07:54:24 davem Exp $
+ * parport.h: sparc64 specific parport initialization and dma.
+ *
+ * Copyright (C) 1999  Eddie C. Dost  (ecd@skynet.be)
+ */
+
+#ifndef _ASM_SPARC64_PARPORT_H
+#define _ASM_SPARC64_PARPORT_H 1
+
+#include <asm/ebus.h>
+#include <asm/isa.h>
+#include <asm/ns87303.h>
+
+#define PARPORT_PC_MAX_PORTS	PARPORT_MAX
+
+static struct sparc_ebus_info {
+	struct ebus_dma_info info;
+	unsigned int addr;
+	unsigned int count;
+} sparc_ebus_dmas[PARPORT_PC_MAX_PORTS];
+
+static __inline__ void enable_dma(unsigned int dmanr)
+{
+	if (ebus_dma_request(&sparc_ebus_dmas[dmanr].info,
+			     sparc_ebus_dmas[dmanr].addr,
+			     sparc_ebus_dmas[dmanr].count))
+		BUG();
+
+	ebus_dma_enable(&sparc_ebus_dmas[dmanr].info, 1);
+}
+
+static __inline__ void disable_dma(unsigned int dmanr)
+{
+	ebus_dma_enable(&sparc_ebus_dmas[dmanr].info, 0);
+}
+
+static __inline__ void clear_dma_ff(unsigned int dmanr)
+{
+	/* nothing */
+}
+
+static __inline__ void set_dma_mode(unsigned int dmanr, char mode)
+{
+	ebus_dma_prepare(&sparc_ebus_dmas[dmanr].info, (mode != DMA_MODE_WRITE));
+}
+
+static __inline__ void set_dma_addr(unsigned int dmanr, unsigned int addr)
+{
+	sparc_ebus_dmas[dmanr].addr = addr;
+}
+
+static __inline__ void set_dma_count(unsigned int dmanr, unsigned int count)
+{
+	sparc_ebus_dmas[dmanr].count = count;
+}
+
+static __inline__ unsigned int get_dma_residue(unsigned int dmanr)
+{
+	return ebus_dma_residue(&sparc_ebus_dmas[dmanr].info);
+}
+
+static int ebus_ecpp_p(struct linux_ebus_device *edev)
+{
+	if (!strcmp(edev->prom_name, "ecpp"))
+		return 1;
+	if (!strcmp(edev->prom_name, "parallel")) {
+		char compat[19];
+		prom_getstring(edev->prom_node,
+			       "compatible",
+			       compat, sizeof(compat));
+		compat[18] = '\0';
+		if (!strcmp(compat, "ecpp"))
+			return 1;
+		if (!strcmp(compat, "ns87317-ecpp") &&
+		    !strcmp(compat + 13, "ecpp"))
+			return 1;
+	}
+	return 0;
+}
+
+static int parport_isa_probe(int count)
+{
+	struct sparc_isa_bridge *isa_br;
+	struct sparc_isa_device *isa_dev;
+
+	for_each_isa(isa_br) {
+		for_each_isadev(isa_dev, isa_br) {
+			struct sparc_isa_device *child;
+			unsigned long base;
+
+			if (strcmp(isa_dev->prom_name, "dma"))
+				continue;
+
+			child = isa_dev->child;
+			while (child) {
+				if (!strcmp(child->prom_name, "parallel"))
+					break;
+				child = child->next;
+			}
+			if (!child)
+				continue;
+
+			base = child->resource.start;
+
+			/* No DMA, see commentary in
+			 * asm-sparc64/floppy.h:isa_floppy_init()
+			 */
+			if (parport_pc_probe_port(base, base + 0x400,
+						  child->irq, PARPORT_DMA_NOFIFO,
+						  child->bus->self))
+				count++;
+		}
+	}
+
+	return count;
+}
+
+static int parport_pc_find_nonpci_ports (int autoirq, int autodma)
+{
+	struct linux_ebus *ebus;
+	struct linux_ebus_device *edev;
+	int count = 0;
+
+	for_each_ebus(ebus) {
+		for_each_ebusdev(edev, ebus) {
+			if (ebus_ecpp_p(edev)) {
+				unsigned long base = edev->resource[0].start;
+				unsigned long config = edev->resource[1].start;
+				unsigned long d_base = edev->resource[2].start;
+				unsigned long d_len;
+
+				spin_lock_init(&sparc_ebus_dmas[count].info.lock);
+				d_len = (edev->resource[2].end -
+					 d_base) + 1;
+				sparc_ebus_dmas[count].info.regs =
+					ioremap(d_base, d_len);
+				if (!sparc_ebus_dmas[count].info.regs)
+					continue;
+				sparc_ebus_dmas[count].info.flags = 0;
+				sparc_ebus_dmas[count].info.callback = NULL;
+				sparc_ebus_dmas[count].info.client_cookie = NULL;
+				sparc_ebus_dmas[count].info.irq = 0xdeadbeef;
+				strcpy(sparc_ebus_dmas[count].info.name, "parport");
+				if (ebus_dma_register(&sparc_ebus_dmas[count].info))
+					continue;
+				ebus_dma_irq_enable(&sparc_ebus_dmas[count].info, 1);
+
+				/* Configure IRQ to Push Pull, Level Low */
+				/* Enable ECP, set bit 2 of the CTR first */
+				outb(0x04, base + 0x02);
+				ns87303_modify(config, PCR,
+					       PCR_EPP_ENABLE |
+					       PCR_IRQ_ODRAIN,
+					       PCR_ECP_ENABLE |
+					       PCR_ECP_CLK_ENA |
+					       PCR_IRQ_POLAR);
+
+				/* CTR bit 5 controls direction of port */
+				ns87303_modify(config, PTR,
+					       0, PTR_LPT_REG_DIR);
+
+				if (parport_pc_probe_port(base, base + 0x400,
+							  edev->irqs[0],
+							  count, ebus->self))
+					count++;
+			}
+		}
+	}
+
+	count = parport_isa_probe(count);
+
+	return count;
+}
+
+#endif /* !(_ASM_SPARC64_PARPORT_H */