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/drivers/pcmcia/au1000_generic.c b/drivers/pcmcia/au1000_generic.c
new file mode 100644
index 0000000..9fa7f15
--- /dev/null
+++ b/drivers/pcmcia/au1000_generic.c
@@ -0,0 +1,579 @@
+/*
+ *
+ * Alchemy Semi Au1000 pcmcia driver
+ *
+ * Copyright 2001-2003 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ppopov@embeddedalley.com or source@mvista.com
+ *
+ * Copyright 2004 Pete Popov, Embedded Alley Solutions, Inc.
+ * Updated the driver to 2.6. Followed the sa11xx API and largely
+ * copied many of the hardware independent functions.
+ *
+ * ########################################################################
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * ########################################################################
+ *
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/config.h>
+#include <linux/cpufreq.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/notifier.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/device.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/system.h>
+
+#include <asm/mach-au1x00/au1000.h>
+#include "au1000_generic.h"
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Pete Popov <ppopov@embeddedalley.com>");
+MODULE_DESCRIPTION("Linux PCMCIA Card Services: Au1x00 Socket Controller");
+
+#if 0
+#define debug(x,args...) printk(KERN_DEBUG "%s: " x, __func__ , ##args)
+#else
+#define debug(x,args...)
+#endif
+
+#define MAP_SIZE 0x100000
+extern struct au1000_pcmcia_socket au1000_pcmcia_socket[];
+#define PCMCIA_SOCKET(x) (au1000_pcmcia_socket + (x))
+#define to_au1000_socket(x) container_of(x, struct au1000_pcmcia_socket, socket)
+
+/* Some boards like to support CF cards as IDE root devices, so they
+ * grab pcmcia sockets directly.
+ */
+u32 *pcmcia_base_vaddrs[2];
+extern const unsigned long mips_io_port_base;
+
+DECLARE_MUTEX(pcmcia_sockets_lock);
+
+static int (*au1x00_pcmcia_hw_init[])(struct device *dev) = {
+ au1x_board_init,
+};
+
+static int
+au1x00_pcmcia_skt_state(struct au1000_pcmcia_socket *skt)
+{
+ struct pcmcia_state state;
+ unsigned int stat;
+
+ memset(&state, 0, sizeof(struct pcmcia_state));
+
+ skt->ops->socket_state(skt, &state);
+
+ stat = state.detect ? SS_DETECT : 0;
+ stat |= state.ready ? SS_READY : 0;
+ stat |= state.wrprot ? SS_WRPROT : 0;
+ stat |= state.vs_3v ? SS_3VCARD : 0;
+ stat |= state.vs_Xv ? SS_XVCARD : 0;
+ stat |= skt->cs_state.Vcc ? SS_POWERON : 0;
+
+ if (skt->cs_state.flags & SS_IOCARD)
+ stat |= state.bvd1 ? SS_STSCHG : 0;
+ else {
+ if (state.bvd1 == 0)
+ stat |= SS_BATDEAD;
+ else if (state.bvd2 == 0)
+ stat |= SS_BATWARN;
+ }
+ return stat;
+}
+
+/*
+ * au100_pcmcia_config_skt
+ *
+ * Convert PCMCIA socket state to our socket configure structure.
+ */
+static int
+au1x00_pcmcia_config_skt(struct au1000_pcmcia_socket *skt, socket_state_t *state)
+{
+ int ret;
+
+ ret = skt->ops->configure_socket(skt, state);
+ if (ret == 0) {
+ skt->cs_state = *state;
+ }
+
+ if (ret < 0)
+ debug("unable to configure socket %d\n", skt->nr);
+
+ return ret;
+}
+
+/* au1x00_pcmcia_sock_init()
+ *
+ * (Re-)Initialise the socket, turning on status interrupts
+ * and PCMCIA bus. This must wait for power to stabilise
+ * so that the card status signals report correctly.
+ *
+ * Returns: 0
+ */
+static int au1x00_pcmcia_sock_init(struct pcmcia_socket *sock)
+{
+ struct au1000_pcmcia_socket *skt = to_au1000_socket(sock);
+
+ debug("initializing socket %u\n", skt->nr);
+
+ skt->ops->socket_init(skt);
+ return 0;
+}
+
+/*
+ * au1x00_pcmcia_suspend()
+ *
+ * Remove power on the socket, disable IRQs from the card.
+ * Turn off status interrupts, and disable the PCMCIA bus.
+ *
+ * Returns: 0
+ */
+static int au1x00_pcmcia_suspend(struct pcmcia_socket *sock)
+{
+ struct au1000_pcmcia_socket *skt = to_au1000_socket(sock);
+
+ debug("suspending socket %u\n", skt->nr);
+
+ skt->ops->socket_suspend(skt);
+
+ return 0;
+}
+
+static DEFINE_SPINLOCK(status_lock);
+
+/*
+ * au1x00_check_status()
+ */
+static void au1x00_check_status(struct au1000_pcmcia_socket *skt)
+{
+ unsigned int events;
+
+ debug("entering PCMCIA monitoring thread\n");
+
+ do {
+ unsigned int status;
+ unsigned long flags;
+
+ status = au1x00_pcmcia_skt_state(skt);
+
+ spin_lock_irqsave(&status_lock, flags);
+ events = (status ^ skt->status) & skt->cs_state.csc_mask;
+ skt->status = status;
+ spin_unlock_irqrestore(&status_lock, flags);
+
+ debug("events: %s%s%s%s%s%s\n",
+ events == 0 ? "<NONE>" : "",
+ events & SS_DETECT ? "DETECT " : "",
+ events & SS_READY ? "READY " : "",
+ events & SS_BATDEAD ? "BATDEAD " : "",
+ events & SS_BATWARN ? "BATWARN " : "",
+ events & SS_STSCHG ? "STSCHG " : "");
+
+ if (events)
+ pcmcia_parse_events(&skt->socket, events);
+ } while (events);
+}
+
+/*
+ * au1x00_pcmcia_poll_event()
+ * Let's poll for events in addition to IRQs since IRQ only is unreliable...
+ */
+static void au1x00_pcmcia_poll_event(unsigned long dummy)
+{
+ struct au1000_pcmcia_socket *skt = (struct au1000_pcmcia_socket *)dummy;
+ debug("polling for events\n");
+
+ mod_timer(&skt->poll_timer, jiffies + AU1000_PCMCIA_POLL_PERIOD);
+
+ au1x00_check_status(skt);
+}
+
+/* au1x00_pcmcia_get_status()
+ *
+ * From the sa11xx_core.c:
+ * Implements the get_status() operation for the in-kernel PCMCIA
+ * service (formerly SS_GetStatus in Card Services). Essentially just
+ * fills in bits in `status' according to internal driver state or
+ * the value of the voltage detect chipselect register.
+ *
+ * As a debugging note, during card startup, the PCMCIA core issues
+ * three set_socket() commands in a row the first with RESET deasserted,
+ * the second with RESET asserted, and the last with RESET deasserted
+ * again. Following the third set_socket(), a get_status() command will
+ * be issued. The kernel is looking for the SS_READY flag (see
+ * setup_socket(), reset_socket(), and unreset_socket() in cs.c).
+ *
+ * Returns: 0
+ */
+static int
+au1x00_pcmcia_get_status(struct pcmcia_socket *sock, unsigned int *status)
+{
+ struct au1000_pcmcia_socket *skt = to_au1000_socket(sock);
+
+ skt->status = au1x00_pcmcia_skt_state(skt);
+ *status = skt->status;
+
+ return 0;
+}
+
+/* au1x00_pcmcia_get_socket()
+ * Implements the get_socket() operation for the in-kernel PCMCIA
+ * service (formerly SS_GetSocket in Card Services). Not a very
+ * exciting routine.
+ *
+ * Returns: 0
+ */
+static int
+au1x00_pcmcia_get_socket(struct pcmcia_socket *sock, socket_state_t *state)
+{
+ struct au1000_pcmcia_socket *skt = to_au1000_socket(sock);
+
+ debug("for sock %u\n", skt->nr);
+ *state = skt->cs_state;
+ return 0;
+}
+
+/* au1x00_pcmcia_set_socket()
+ * Implements the set_socket() operation for the in-kernel PCMCIA
+ * service (formerly SS_SetSocket in Card Services). We more or
+ * less punt all of this work and let the kernel handle the details
+ * of power configuration, reset, &c. We also record the value of
+ * `state' in order to regurgitate it to the PCMCIA core later.
+ *
+ * Returns: 0
+ */
+static int
+au1x00_pcmcia_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
+{
+ struct au1000_pcmcia_socket *skt = to_au1000_socket(sock);
+
+ debug("for sock %u\n", skt->nr);
+
+ debug("\tmask: %s%s%s%s%s%s\n\tflags: %s%s%s%s%s%s\n",
+ (state->csc_mask==0)?"<NONE>":"",
+ (state->csc_mask&SS_DETECT)?"DETECT ":"",
+ (state->csc_mask&SS_READY)?"READY ":"",
+ (state->csc_mask&SS_BATDEAD)?"BATDEAD ":"",
+ (state->csc_mask&SS_BATWARN)?"BATWARN ":"",
+ (state->csc_mask&SS_STSCHG)?"STSCHG ":"",
+ (state->flags==0)?"<NONE>":"",
+ (state->flags&SS_PWR_AUTO)?"PWR_AUTO ":"",
+ (state->flags&SS_IOCARD)?"IOCARD ":"",
+ (state->flags&SS_RESET)?"RESET ":"",
+ (state->flags&SS_SPKR_ENA)?"SPKR_ENA ":"",
+ (state->flags&SS_OUTPUT_ENA)?"OUTPUT_ENA ":"");
+ debug("\tVcc %d Vpp %d irq %d\n",
+ state->Vcc, state->Vpp, state->io_irq);
+
+ return au1x00_pcmcia_config_skt(skt, state);
+}
+
+int
+au1x00_pcmcia_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *map)
+{
+ struct au1000_pcmcia_socket *skt = to_au1000_socket(sock);
+ unsigned int speed;
+
+ if(map->map>=MAX_IO_WIN){
+ debug("map (%d) out of range\n", map->map);
+ return -1;
+ }
+
+ if(map->flags&MAP_ACTIVE){
+ speed=(map->speed>0)?map->speed:AU1000_PCMCIA_IO_SPEED;
+ skt->spd_io[map->map] = speed;
+ }
+
+ map->start=(ioaddr_t)(u32)skt->virt_io;
+ map->stop=map->start+MAP_SIZE;
+ return 0;
+
+} /* au1x00_pcmcia_set_io_map() */
+
+
+static int
+au1x00_pcmcia_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *map)
+{
+ struct au1000_pcmcia_socket *skt = to_au1000_socket(sock);
+ unsigned short speed = map->speed;
+
+ if(map->map>=MAX_WIN){
+ debug("map (%d) out of range\n", map->map);
+ return -1;
+ }
+
+ if (map->flags & MAP_ATTRIB) {
+ skt->spd_attr[map->map] = speed;
+ skt->spd_mem[map->map] = 0;
+ } else {
+ skt->spd_attr[map->map] = 0;
+ skt->spd_mem[map->map] = speed;
+ }
+
+ if (map->flags & MAP_ATTRIB) {
+ map->static_start = skt->phys_attr + map->card_start;
+ }
+ else {
+ map->static_start = skt->phys_mem + map->card_start;
+ }
+
+ debug("set_mem_map %d start %08lx card_start %08x\n",
+ map->map, map->static_start, map->card_start);
+ return 0;
+
+} /* au1x00_pcmcia_set_mem_map() */
+
+static struct pccard_operations au1x00_pcmcia_operations = {
+ .init = au1x00_pcmcia_sock_init,
+ .suspend = au1x00_pcmcia_suspend,
+ .get_status = au1x00_pcmcia_get_status,
+ .get_socket = au1x00_pcmcia_get_socket,
+ .set_socket = au1x00_pcmcia_set_socket,
+ .set_io_map = au1x00_pcmcia_set_io_map,
+ .set_mem_map = au1x00_pcmcia_set_mem_map,
+};
+
+static const char *skt_names[] = {
+ "PCMCIA socket 0",
+ "PCMCIA socket 1",
+};
+
+struct skt_dev_info {
+ int nskt;
+};
+
+int au1x00_pcmcia_socket_probe(struct device *dev, struct pcmcia_low_level *ops, int first, int nr)
+{
+ struct skt_dev_info *sinfo;
+ int ret, i;
+
+ sinfo = kmalloc(sizeof(struct skt_dev_info), GFP_KERNEL);
+ if (!sinfo) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ memset(sinfo, 0, sizeof(struct skt_dev_info));
+ sinfo->nskt = nr;
+
+ /*
+ * Initialise the per-socket structure.
+ */
+ for (i = 0; i < nr; i++) {
+ struct au1000_pcmcia_socket *skt = PCMCIA_SOCKET(i);
+ memset(skt, 0, sizeof(*skt));
+
+ skt->socket.ops = &au1x00_pcmcia_operations;
+ skt->socket.owner = ops->owner;
+ skt->socket.dev.dev = dev;
+
+ init_timer(&skt->poll_timer);
+ skt->poll_timer.function = au1x00_pcmcia_poll_event;
+ skt->poll_timer.data = (unsigned long)skt;
+ skt->poll_timer.expires = jiffies + AU1000_PCMCIA_POLL_PERIOD;
+
+ skt->nr = first + i;
+ skt->irq = 255;
+ skt->dev = dev;
+ skt->ops = ops;
+
+ skt->res_skt.name = skt_names[skt->nr];
+ skt->res_io.name = "io";
+ skt->res_io.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+ skt->res_mem.name = "memory";
+ skt->res_mem.flags = IORESOURCE_MEM;
+ skt->res_attr.name = "attribute";
+ skt->res_attr.flags = IORESOURCE_MEM;
+
+ /*
+ * PCMCIA client drivers use the inb/outb macros to access the
+ * IO registers. Since mips_io_port_base is added to the
+ * access address of the mips implementation of inb/outb,
+ * we need to subtract it here because we want to access the
+ * I/O or MEM address directly, without going through this
+ * "mips_io_port_base" mechanism.
+ */
+ if (i == 0) {
+ skt->virt_io = (void *)
+ (ioremap((phys_t)AU1X_SOCK0_IO, 0x1000) -
+ (u32)mips_io_port_base);
+ skt->phys_attr = AU1X_SOCK0_PSEUDO_PHYS_ATTR;
+ skt->phys_mem = AU1X_SOCK0_PSEUDO_PHYS_MEM;
+ }
+#ifndef CONFIG_MIPS_XXS1500
+ else {
+ skt->virt_io = (void *)
+ (ioremap((phys_t)AU1X_SOCK1_IO, 0x1000) -
+ (u32)mips_io_port_base);
+ skt->phys_attr = AU1X_SOCK1_PSEUDO_PHYS_ATTR;
+ skt->phys_mem = AU1X_SOCK1_PSEUDO_PHYS_MEM;
+ }
+#endif
+ pcmcia_base_vaddrs[i] = (u32 *)skt->virt_io;
+ ret = ops->hw_init(skt);
+
+ skt->socket.features = SS_CAP_STATIC_MAP|SS_CAP_PCCARD;
+ skt->socket.irq_mask = 0;
+ skt->socket.map_size = MAP_SIZE;
+ skt->socket.pci_irq = skt->irq;
+ skt->socket.io_offset = (unsigned long)skt->virt_io;
+
+ skt->status = au1x00_pcmcia_skt_state(skt);
+
+ ret = pcmcia_register_socket(&skt->socket);
+ if (ret)
+ goto out_err;
+
+ WARN_ON(skt->socket.sock != i);
+
+ add_timer(&skt->poll_timer);
+ }
+
+ dev_set_drvdata(dev, sinfo);
+ return 0;
+
+ do {
+ struct au1000_pcmcia_socket *skt = PCMCIA_SOCKET(i);
+
+ del_timer_sync(&skt->poll_timer);
+ pcmcia_unregister_socket(&skt->socket);
+out_err:
+ flush_scheduled_work();
+ ops->hw_shutdown(skt);
+
+ i--;
+ } while (i > 0);
+ kfree(sinfo);
+out:
+ return ret;
+}
+
+int au1x00_drv_pcmcia_remove(struct device *dev)
+{
+ struct skt_dev_info *sinfo = dev_get_drvdata(dev);
+ int i;
+
+ down(&pcmcia_sockets_lock);
+ dev_set_drvdata(dev, NULL);
+
+ for (i = 0; i < sinfo->nskt; i++) {
+ struct au1000_pcmcia_socket *skt = PCMCIA_SOCKET(i);
+
+ del_timer_sync(&skt->poll_timer);
+ pcmcia_unregister_socket(&skt->socket);
+ flush_scheduled_work();
+ skt->ops->hw_shutdown(skt);
+ au1x00_pcmcia_config_skt(skt, &dead_socket);
+ iounmap(skt->virt_io);
+ skt->virt_io = NULL;
+ }
+
+ kfree(sinfo);
+ up(&pcmcia_sockets_lock);
+ return 0;
+}
+
+
+/*
+ * PCMCIA "Driver" API
+ */
+
+static int au1x00_drv_pcmcia_probe(struct device *dev)
+{
+ int i, ret = -ENODEV;
+
+ down(&pcmcia_sockets_lock);
+ for (i=0; i < ARRAY_SIZE(au1x00_pcmcia_hw_init); i++) {
+ ret = au1x00_pcmcia_hw_init[i](dev);
+ if (ret == 0)
+ break;
+ }
+ up(&pcmcia_sockets_lock);
+ return ret;
+}
+
+
+static int au1x00_drv_pcmcia_suspend(struct device *dev, u32 state, u32 level)
+{
+ int ret = 0;
+ if (level == SUSPEND_SAVE_STATE)
+ ret = pcmcia_socket_dev_suspend(dev, state);
+ return ret;
+}
+
+static int au1x00_drv_pcmcia_resume(struct device *dev, u32 level)
+{
+ int ret = 0;
+ if (level == RESUME_RESTORE_STATE)
+ ret = pcmcia_socket_dev_resume(dev);
+ return ret;
+}
+
+
+static struct device_driver au1x00_pcmcia_driver = {
+ .probe = au1x00_drv_pcmcia_probe,
+ .remove = au1x00_drv_pcmcia_remove,
+ .name = "au1x00-pcmcia",
+ .bus = &platform_bus_type,
+ .suspend = au1x00_drv_pcmcia_suspend,
+ .resume = au1x00_drv_pcmcia_resume
+};
+
+static struct platform_device au1x00_device = {
+ .name = "au1x00-pcmcia",
+ .id = 0,
+};
+
+/* au1x00_pcmcia_init()
+ *
+ * This routine performs low-level PCMCIA initialization and then
+ * registers this socket driver with Card Services.
+ *
+ * Returns: 0 on success, -ve error code on failure
+ */
+static int __init au1x00_pcmcia_init(void)
+{
+ int error = 0;
+ if ((error = driver_register(&au1x00_pcmcia_driver)))
+ return error;
+ platform_device_register(&au1x00_device);
+ return error;
+}
+
+/* au1x00_pcmcia_exit()
+ * Invokes the low-level kernel service to free IRQs associated with this
+ * socket controller and reset GPIO edge detection.
+ */
+static void __exit au1x00_pcmcia_exit(void)
+{
+ driver_unregister(&au1x00_pcmcia_driver);
+ platform_device_unregister(&au1x00_device);
+}
+
+module_init(au1x00_pcmcia_init);
+module_exit(au1x00_pcmcia_exit);