patch-2.3.35 linux/drivers/pcmcia/pci_socket.c

• Lines: 213
• Date: Thu Dec 23 00:07:09 1999
• Orig file: v2.3.34/linux/drivers/pcmcia/pci_socket.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.34/linux/drivers/pcmcia/pci_socket.c linux/drivers/pcmcia/pci_socket.c
@@ -0,0 +1,212 @@
+/*
+ * Generic PCI pccard driver interface.
+ *
+ * (C) Copyright 1999 Linus Torvalds
+ *
+ * This implements the common parts of PCI pccard drivers,
+ * notably detection and infrastructure conversion (ie change
+ * from socket index to "struct pci_dev" etc)
+ *
+ * This does NOT implement the actual low-level driver details,
+ * and this has on purpose been left generic enough that it can
+ * be used to set up a PCI PCMCIA controller (ie non-cardbus),
+ * or to set up a controller.
+ *
+ * See for example the "yenta" driver for PCI cardbus controllers
+ * conforming to the yenta cardbus specifications.
+ */
+#include <linux/module.h>
+
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+
+#include <pcmcia/ss.h>
+
+#include <asm/io.h>
+
+#include "pci_socket.h"
+
+static struct pci_simple_probe_entry controller_list[] = {
+	{ PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1225, 0, 0, &yenta_operations },
+	{ 0x1180, 0x0475, 0, 0, &yenta_operations },
+	{ 0, 0, 0, 0, NULL }
+};
+
+
+/*
+ * Arbitrary define. This is the array of active cardbus
+ * entries.
+ */
+#define MAX_SOCKETS (8)
+static pci_socket_t pci_socket_array[MAX_SOCKETS];
+
+/*
+ * Work in progress. I need to distill the _real_ differences in
+ * carbus drivers, and change the cardbus "op" list to match. This
+ * is just a direct 1:1 mapping of the pccard operations.
+ */
+static int pci_register_callback(unsigned int sock, void (*handler)(void *, unsigned int), void * info)
+{
+	pci_socket_t *socket = pci_socket_array + sock;
+
+	socket->handler = handler;
+	socket->info = info;
+	if (handler)
+		MOD_INC_USE_COUNT;
+	else
+		MOD_DEC_USE_COUNT;
+	return 0;
+}
+
+static int pci_inquire_socket(unsigned int sock, socket_cap_t *cap)
+{
+	pci_socket_t *socket = pci_socket_array + sock;
+
+	if (socket->op && socket->op->inquire)
+		return socket->op->inquire(socket, cap);
+	return -EINVAL;
+}
+
+static int pci_get_status(unsigned int sock, unsigned int *value)
+{
+	pci_socket_t *socket = pci_socket_array + sock;
+
+	if (socket->op && socket->op->get_status)
+		return socket->op->get_status(socket, value);
+	*value = 0;
+	return -EINVAL;
+}
+
+static int pci_get_socket(unsigned int sock, socket_state_t *state)
+{
+	pci_socket_t *socket = pci_socket_array + sock;
+
+	if (socket->op && socket->op->get_socket)
+		return socket->op->get_socket(socket, state);
+	return -EINVAL;
+}
+
+static int pci_set_socket(unsigned int sock, socket_state_t *state)
+{
+	pci_socket_t *socket = pci_socket_array + sock;
+
+	if (socket->op && socket->op->set_socket)
+		return socket->op->set_socket(socket, state);
+	return -EINVAL;
+}
+
+static int pci_get_io_map(unsigned int sock, struct pccard_io_map *io)
+{
+	pci_socket_t *socket = pci_socket_array + sock;
+
+	if (socket->op && socket->op->get_io_map)
+		return socket->op->get_io_map(socket, io);
+	return -EINVAL;
+}
+
+static int pci_set_io_map(unsigned int sock, struct pccard_io_map *io)
+{
+	pci_socket_t *socket = pci_socket_array + sock;
+
+	if (socket->op && socket->op->set_io_map)
+		return socket->op->set_io_map(socket, io);
+	return -EINVAL;
+}
+
+static int pci_get_mem_map(unsigned int sock, struct pccard_mem_map *mem)
+{
+	pci_socket_t *socket = pci_socket_array + sock;
+
+	if (socket->op && socket->op->get_mem_map)
+		return socket->op->get_mem_map(socket, mem);
+	return -EINVAL;
+}
+
+static int pci_set_mem_map(unsigned int sock, struct pccard_mem_map *mem)
+{
+	pci_socket_t *socket = pci_socket_array + sock;
+
+	if (socket->op && socket->op->set_mem_map)
+		return socket->op->set_mem_map(socket, mem);
+	return -EINVAL;
+}
+
+static int pci_get_bridge(unsigned int sock, struct cb_bridge_map *m)
+{
+	pci_socket_t *socket = pci_socket_array + sock;
+
+	if (socket->op && socket->op->get_bridge)
+		return socket->op->get_bridge(socket, m);
+	return -EINVAL;
+}
+
+static int pci_set_bridge(unsigned int sock, struct cb_bridge_map *m)
+{
+	pci_socket_t *socket = pci_socket_array + sock;
+
+	if (socket->op && socket->op->set_bridge)
+		return socket->op->set_bridge(socket, m);
+	return -EINVAL;
+}
+
+static void pci_proc_setup(unsigned int sock, struct proc_dir_entry *base)
+{
+	pci_socket_t *socket = pci_socket_array + sock;
+
+	if (socket->op && socket->op->proc_setup)
+		socket->op->proc_setup(socket, base);
+}
+
+static struct pccard_operations pci_socket_operations = {
+	pci_register_callback,
+	pci_inquire_socket,
+	pci_get_status,
+	pci_get_socket,
+	pci_set_socket,
+	pci_get_io_map,
+	pci_set_io_map,
+	pci_get_mem_map,
+	pci_set_mem_map,
+	pci_get_bridge,
+	pci_set_bridge,
+	pci_proc_setup
+};
+
+static int __init pci_socket_probe(struct pci_dev *dev, int nr, const struct pci_simple_probe_entry * entry, void *data)
+{
+	pci_socket_t *socket = nr + pci_socket_array;
+
+	printk("Found controller %d: %s\n", nr, dev->name);
+	socket->dev = dev;
+	socket->op = entry->dev_data;
+	socket->op->open(socket);
+	return 0;
+}
+
+static int __init pci_socket_init(void)
+{
+	int sockets = pci_simple_probe(controller_list, MAX_SOCKETS, pci_socket_probe, NULL);
+
+	if (sockets <= 0)
+		return -1;
+	register_ss_entry(sockets, &pci_socket_operations);
+	return 0;
+}
+
+static void __exit pci_socket_exit(void)
+{
+	int i;
+
+	unregister_ss_entry(&pci_socket_operations);
+	for (i = 0; i < MAX_SOCKETS; i++) {
+		pci_socket_t *socket = pci_socket_array + i;
+
+		if (socket->op && socket->op->close)
+			socket->op->close(socket);
+	}
+}
+
+module_init(pci_socket_init);
+module_exit(pci_socket_exit);