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/input/keyboard/hilkbd.c b/drivers/input/keyboard/hilkbd.c
new file mode 100644
index 0000000..eecb77d
--- /dev/null
+++ b/drivers/input/keyboard/hilkbd.c
@@ -0,0 +1,343 @@
+/*
+ * linux/drivers/hil/hilkbd.c
+ *
+ * Copyright (C) 1998 Philip Blundell <philb@gnu.org>
+ * Copyright (C) 1999 Matthew Wilcox <willy@bofh.ai>
+ * Copyright (C) 1999-2003 Helge Deller <deller@gmx.de>
+ *
+ * Very basic HP Human Interface Loop (HIL) driver.
+ * This driver handles the keyboard on HP300 (m68k) and on some
+ * HP700 (parisc) series machines.
+ *
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License version 2. See the file COPYING in the main directory of this
+ * archive for more details.
+ */
+
+#include <linux/pci_ids.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/hil.h>
+#include <linux/spinlock.h>
+
+
+MODULE_AUTHOR("Philip Blundell, Matthew Wilcox, Helge Deller");
+MODULE_DESCRIPTION("HIL keyboard driver (basic functionality)");
+MODULE_LICENSE("GPL v2");
+
+
+#if defined(CONFIG_PARISC)
+
+ #include <asm/io.h>
+ #include <asm/hardware.h>
+ #include <asm/parisc-device.h>
+ static unsigned long hil_base; /* HPA for the HIL device */
+ static unsigned int hil_irq;
+ #define HILBASE hil_base /* HPPA (parisc) port address */
+ #define HIL_DATA 0x800
+ #define HIL_CMD 0x801
+ #define HIL_IRQ hil_irq
+ #define hil_readb(p) gsc_readb(p)
+ #define hil_writeb(v,p) gsc_writeb((v),(p))
+
+#elif defined(CONFIG_HP300)
+
+ #define HILBASE 0xf0428000 /* HP300 (m86k) port address */
+ #define HIL_DATA 0x1
+ #define HIL_CMD 0x3
+ #define HIL_IRQ 2
+ #define hil_readb(p) readb(p)
+ #define hil_writeb(v,p) writeb((v),(p))
+
+#else
+#error "HIL is not supported on this platform"
+#endif
+
+
+
+/* HIL helper functions */
+
+#define hil_busy() (hil_readb(HILBASE + HIL_CMD) & HIL_BUSY)
+#define hil_data_available() (hil_readb(HILBASE + HIL_CMD) & HIL_DATA_RDY)
+#define hil_status() (hil_readb(HILBASE + HIL_CMD))
+#define hil_command(x) do { hil_writeb((x), HILBASE + HIL_CMD); } while (0)
+#define hil_read_data() (hil_readb(HILBASE + HIL_DATA))
+#define hil_write_data(x) do { hil_writeb((x), HILBASE + HIL_DATA); } while (0)
+
+/* HIL constants */
+
+#define HIL_BUSY 0x02
+#define HIL_DATA_RDY 0x01
+
+#define HIL_SETARD 0xA0 /* set auto-repeat delay */
+#define HIL_SETARR 0xA2 /* set auto-repeat rate */
+#define HIL_SETTONE 0xA3 /* set tone generator */
+#define HIL_CNMT 0xB2 /* clear nmi */
+#define HIL_INTON 0x5C /* Turn on interrupts. */
+#define HIL_INTOFF 0x5D /* Turn off interrupts. */
+
+#define HIL_READKBDSADR 0xF9
+#define HIL_WRITEKBDSADR 0xE9
+
+static unsigned int hphilkeyb_keycode[HIL_KEYCODES_SET1_TBLSIZE] =
+ { HIL_KEYCODES_SET1 };
+
+/* HIL structure */
+static struct {
+ struct input_dev dev;
+
+ unsigned int curdev;
+
+ unsigned char s;
+ unsigned char c;
+ int valid;
+
+ unsigned char data[16];
+ unsigned int ptr;
+ spinlock_t lock;
+
+ void *dev_id; /* native bus device */
+} hil_dev;
+
+
+static void poll_finished(void)
+{
+ int down;
+ int key;
+ unsigned char scode;
+
+ switch (hil_dev.data[0]) {
+ case 0x40:
+ down = (hil_dev.data[1] & 1) == 0;
+ scode = hil_dev.data[1] >> 1;
+ key = hphilkeyb_keycode[scode];
+ input_report_key(&hil_dev.dev, key, down);
+ break;
+ }
+ hil_dev.curdev = 0;
+}
+
+static inline void handle_status(unsigned char s, unsigned char c)
+{
+ if (c & 0x8) {
+ /* End of block */
+ if (c & 0x10)
+ poll_finished();
+ } else {
+ if (c & 0x10) {
+ if (hil_dev.curdev)
+ poll_finished(); /* just in case */
+ hil_dev.curdev = c & 7;
+ hil_dev.ptr = 0;
+ }
+ }
+}
+
+static inline void handle_data(unsigned char s, unsigned char c)
+{
+ if (hil_dev.curdev) {
+ hil_dev.data[hil_dev.ptr++] = c;
+ hil_dev.ptr &= 15;
+ }
+}
+
+
+/*
+ * Handle HIL interrupts.
+ */
+static irqreturn_t hil_interrupt(int irq, void *handle, struct pt_regs *regs)
+{
+ unsigned char s, c;
+
+ s = hil_status();
+ c = hil_read_data();
+
+ switch (s >> 4) {
+ case 0x5:
+ handle_status(s, c);
+ break;
+ case 0x6:
+ handle_data(s, c);
+ break;
+ case 0x4:
+ hil_dev.s = s;
+ hil_dev.c = c;
+ mb();
+ hil_dev.valid = 1;
+ break;
+ }
+ return IRQ_HANDLED;
+}
+
+/*
+ * Send a command to the HIL
+ */
+
+static void hil_do(unsigned char cmd, unsigned char *data, unsigned int len)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&hil_dev.lock, flags);
+ while (hil_busy())
+ /* wait */;
+ hil_command(cmd);
+ while (len--) {
+ while (hil_busy())
+ /* wait */;
+ hil_write_data(*(data++));
+ }
+ spin_unlock_irqrestore(&hil_dev.lock, flags);
+}
+
+
+/*
+ * Initialise HIL.
+ */
+
+static int __init
+hil_keyb_init(void)
+{
+ unsigned char c;
+ unsigned int i, kbid;
+ wait_queue_head_t hil_wait;
+
+ if (hil_dev.dev.id.bustype) {
+ return -ENODEV; /* already initialized */
+ }
+
+#if defined(CONFIG_HP300)
+ if (!hwreg_present((void *)(HILBASE + HIL_DATA)))
+ return -ENODEV;
+
+ request_region(HILBASE+HIL_DATA, 2, "hil");
+#endif
+
+ request_irq(HIL_IRQ, hil_interrupt, 0, "hil", hil_dev.dev_id);
+
+ /* Turn on interrupts */
+ hil_do(HIL_INTON, NULL, 0);
+
+ /* Look for keyboards */
+ hil_dev.valid = 0; /* clear any pending data */
+ hil_do(HIL_READKBDSADR, NULL, 0);
+
+ init_waitqueue_head(&hil_wait);
+ wait_event_interruptible_timeout(hil_wait, hil_dev.valid, 3*HZ);
+ if (!hil_dev.valid) {
+ printk(KERN_WARNING "HIL: timed out, assuming no keyboard present.\n");
+ }
+
+ c = hil_dev.c;
+ hil_dev.valid = 0;
+ if (c == 0) {
+ kbid = -1;
+ printk(KERN_WARNING "HIL: no keyboard present.\n");
+ } else {
+ kbid = ffz(~c);
+ /* printk(KERN_INFO "HIL: keyboard found at id %d\n", kbid); */
+ }
+
+ /* set it to raw mode */
+ c = 0;
+ hil_do(HIL_WRITEKBDSADR, &c, 1);
+
+ init_input_dev(&hil_dev.dev);
+
+ for (i = 0; i < HIL_KEYCODES_SET1_TBLSIZE; i++)
+ if (hphilkeyb_keycode[i] != KEY_RESERVED)
+ set_bit(hphilkeyb_keycode[i], hil_dev.dev.keybit);
+
+ hil_dev.dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
+ hil_dev.dev.ledbit[0] = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
+ hil_dev.dev.keycodemax = HIL_KEYCODES_SET1_TBLSIZE;
+ hil_dev.dev.keycodesize = sizeof(hphilkeyb_keycode[0]);
+ hil_dev.dev.keycode = hphilkeyb_keycode;
+ hil_dev.dev.name = "HIL keyboard";
+ hil_dev.dev.phys = "hpkbd/input0";
+
+ hil_dev.dev.id.bustype = BUS_HIL;
+ hil_dev.dev.id.vendor = PCI_VENDOR_ID_HP;
+ hil_dev.dev.id.product = 0x0001;
+ hil_dev.dev.id.version = 0x0010;
+
+ input_register_device(&hil_dev.dev);
+ printk(KERN_INFO "input: %s, ID %d at 0x%08lx (irq %d) found and attached\n",
+ hil_dev.dev.name, kbid, HILBASE, HIL_IRQ);
+
+ return 0;
+}
+
+#if defined(CONFIG_PARISC)
+static int __init
+hil_init_chip(struct parisc_device *dev)
+{
+ if (!dev->irq) {
+ printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%08lx\n", dev->hpa);
+ return -ENODEV;
+ }
+
+ hil_base = dev->hpa;
+ hil_irq = dev->irq;
+ hil_dev.dev_id = dev;
+
+ printk(KERN_INFO "Found HIL bus at 0x%08lx, IRQ %d\n", hil_base, hil_irq);
+
+ return hil_keyb_init();
+}
+
+static struct parisc_device_id hil_tbl[] = {
+ { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00073 },
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(parisc, hil_tbl);
+
+static struct parisc_driver hil_driver = {
+ .name = "HIL",
+ .id_table = hil_tbl,
+ .probe = hil_init_chip,
+};
+#endif /* CONFIG_PARISC */
+
+
+
+
+
+static int __init hil_init(void)
+{
+#if defined(CONFIG_PARISC)
+ return register_parisc_driver(&hil_driver);
+#else
+ return hil_keyb_init();
+#endif
+}
+
+
+static void __exit hil_exit(void)
+{
+ if (HIL_IRQ) {
+ disable_irq(HIL_IRQ);
+ free_irq(HIL_IRQ, hil_dev.dev_id);
+ }
+
+ /* Turn off interrupts */
+ hil_do(HIL_INTOFF, NULL, 0);
+
+ input_unregister_device(&hil_dev.dev);
+
+#if defined(CONFIG_PARISC)
+ unregister_parisc_driver(&hil_driver);
+#else
+ release_region(HILBASE+HIL_DATA, 2);
+#endif
+}
+
+module_init(hil_init);
+module_exit(hil_exit);
+