patch-2.4.23 linux-2.4.23/include/asm-arm/hc_sl811-hw.h

• Lines: 140
• Date: 2003-11-28 10:26:21.000000000 -0800
• Orig file: linux-2.4.22/include/asm-arm/hc_sl811-hw.h
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.22/include/asm-arm/hc_sl811-hw.h linux-2.4.23/include/asm-arm/hc_sl811-hw.h
@@ -0,0 +1,139 @@
+/*
+File: include/asm-arm/hc_sl811-hw.h
+*/
+
+/* The base_addr, data_reg_addr, and irq number are board specific.
+ * The current values are design to run on the Accelent SA1110 IDP
+ * NOTE: values need to modify for different development boards
+ */
+
+#define SIZEOF_IO_REGION	256	/* Size for request/release region */
+static int base_addr	 = 0xd3800000;
+static int data_reg_addr = 0xd3810000;
+static int irq		 = 34;		/* Also change SL811_SET_GPDR! */
+static int gprd 	 = 13;		/* also change irq  !!! */
+
+MODULE_PARM (base_addr, "i");
+MODULE_PARM_DESC (base_addr, "sl811 base address 0xd3800000");
+MODULE_PARM (data_reg_addr, "i");
+MODULE_PARM_DESC (data_reg_addr, "sl811 data register address 0xd3810000");
+MODULE_PARM (irq, "i");
+MODULE_PARM_DESC (irq, "IRQ 34 (default)");
+MODULE_PARM(gprd,"i");
+MODULE_PARM_DESC(gprd,"sl811 GPRD port 13(default)");
+
+/*
+ * Low level: Read from Data port [arm]
+ */
+static __u8 inline sl811_read_data (hcipriv_t *hp)
+{
+	__u8 data;
+	data = readb (hp->hcport2);
+	rmb ();
+	return (data);
+}
+
+/*
+ * Low level: Write to index register [arm]
+ */
+static void inline sl811_write_index (hcipriv_t *hp, __u8 index)
+{
+	writeb (offset, hp->hcport);
+	wmb ();
+}
+
+/*
+ * Low level: Write to Data port [arm]
+ */
+static void inline sl811_write_data (hcipriv_t *hp, __u8 data)
+{
+	writeb (data, hp->hcport2);
+}
+
+/*
+ * Low level: Write to index register and data port [arm]
+ */
+static void inline sl811_write_index_data (hcipriv_t *hp, __u8 index, __u8 data)
+{
+	writeb (offset, hp->hcport);
+	writeb (data, hp->hcport2);
+	wmb ();
+}
+
+/*****************************************************************
+ *
+ * Function Name: init_irq [arm]
+ *
+ * This function is board specific.  It sets up the interrupt to
+ * be an edge trigger and trigger on the rising edge
+ *
+ * Input: none
+ *
+ * Return value  : none
+ *
+ *****************************************************************/
+static void inline init_irq (void)
+{
+	GPDR &= ~(1 << gprd);
+	set_GPIO_IRQ_edge (1 << gprd, GPIO_RISING_EDGE);
+}
+
+/*****************************************************************
+ *
+ * Function Name: release_regions [arm]
+ *
+ * This function is board specific.  It frees all io address.
+ *
+ * Input: hcipriv_t *
+ *
+ * Return value  : none
+ *
+ *****************************************************************/
+static void inline release_regions (hcipriv_t *hp)
+{
+	if (hp->hcport > 0) {
+		release_region (hp->hcport, SIZEOF_IO_REGION);
+		hp->hcport = 0;
+	}
+
+	if (hp->hcport2 > 0) {
+		release_region (hp->hcport2, SIZEOF_IO_REGION);
+		hp->hcport2 = 0;
+	}
+}
+
+/*****************************************************************
+ *
+ * Function Name: request_regions [arm]
+ *
+ * This function is board specific. It request all io address and
+ * maps into memory (if can).
+ *
+ * Input: hcipriv_t *
+ *
+ * Return value  : 0 = OK
+ *                
+ *****************************************************************/
+static int inline request_regions (hcipriv_t *hp, int addr1, int addr2)
+{
+	if (!request_region (addr1, SIZEOF_IO_REGION, "SL811 USB HOST")) {
+		DBGERR ("request address %d failed", addr1);
+		return -EBUSY;
+	}
+	hp->hcport = addr1;
+	if (!hp->hcport) {
+		DBGERR ("Error mapping SL811 Memory 0x%x", addr1);
+	}
+
+	if (!request_region (addr2, SIZEOF_IO_REGION, "SL811 USB HOST")) {
+		DBGERR ("request address %d failed", addr2);
+		return -EBUSY;
+	}
+	hp->hcport2 = addr2;
+	if (!hp->hcport2) {
+		DBGERR ("Error mapping SL811 Memory 0x%x", addr2);
+	}
+
+	return 0;
+}
+