[SERIAL] Expose 8250_pci setup/removal/suspend/resume functions

Re-jig the setup/removal/suspend/resume of 8250 pci ports so that they
know slightly less about how they're attached to a PCI device.  Expose
this as the new interface for registering PCI serial ports, as well as
the pciserial_board structure and associated flag definitions.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 38 insertions, 0 deletions

diff --git a/include/linux/8250_pci.h b/include/linux/8250_pci.h
index 5f3ab21b339b..192c0ff7a774 100644
--- a/include/linux/8250_pci.h
+++ b/include/linux/8250_pci.h
@@ -1,2 +1,40 @@
+/*
+ * Definitions for PCI support.
+ */
+#define FL_BASE_MASK		0x0007
+#define FL_BASE0		0x0000
+#define FL_BASE1		0x0001
+#define FL_BASE2		0x0002
+#define FL_BASE3		0x0003
+#define FL_BASE4		0x0004
+#define FL_GET_BASE(x)		(x & FL_BASE_MASK)
+
+/* Use successive BARs (PCI base address registers),
+   else use offset into some specified BAR */
+#define FL_BASE_BARS		0x0008
+
+/* do not assign an irq */
+#define FL_NOIRQ		0x0080
+
+/* Use the Base address register size to cap number of ports */
+#define FL_REGION_SZ_CAP	0x0100
+
+struct pciserial_board {
+	unsigned int flags;
+	unsigned int num_ports;
+	unsigned int base_baud;
+	unsigned int uart_offset;
+	unsigned int reg_shift;
+	unsigned int first_offset;
+};
+
+struct serial_private;
+
+struct serial_private *
+pciserial_init_ports(struct pci_dev *dev, struct pciserial_board *board);
+void pciserial_remove_ports(struct serial_private *priv);
+void pciserial_suspend_ports(struct serial_private *priv);
+void pciserial_resume_ports(struct serial_private *priv);
+
 int pci_siig10x_fn(struct pci_dev *dev, int enable);
 int pci_siig20x_fn(struct pci_dev *dev, int enable);