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/misc/Kconfig b/drivers/input/misc/Kconfig
new file mode 100644
index 0000000..bb934e6
--- /dev/null
+++ b/drivers/input/misc/Kconfig
@@ -0,0 +1,60 @@
+#
+# Input misc drivers configuration
+#
+menuconfig INPUT_MISC
+ bool "Miscellaneous devices"
+ help
+ Say Y here, and a list of miscellaneous input drivers will be displayed.
+ Everything that didn't fit into the other categories is here. This option
+ doesn't affect the kernel.
+
+ If unsure, say Y.
+
+if INPUT_MISC
+
+config INPUT_PCSPKR
+ tristate "PC Speaker support"
+ depends on ALPHA || X86 || X86_64 || MIPS || PPC_PREP || PPC_CHRP || PPC_PSERIES
+ help
+ Say Y here if you want the standard PC Speaker to be used for
+ bells and whistles.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pcspkr.
+
+config INPUT_SPARCSPKR
+ tristate "SPARC Speaker support"
+ depends on PCI && (SPARC32 || SPARC64)
+ help
+ Say Y here if you want the standard Speaker on Sparc PCI systems
+ to be used for bells and whistles.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called sparcspkr.
+
+config INPUT_M68K_BEEP
+ tristate "M68k Beeper support"
+ depends on M68K
+
+config INPUT_UINPUT
+ tristate "User level driver support"
+ help
+ Say Y here if you want to support user level drivers for input
+ subsystem accessible under char device 10:223 - /dev/input/uinput.
+
+ To compile this driver as a module, choose M here: the
+ module will be called uinput.
+
+config HP_SDC_RTC
+ tristate "HP SDC Real Time Clock"
+ depends on GSC
+ select HP_SDC
+ help
+ Say Y here if you want to support the built-in real time clock
+ of the HP SDC controller.
+
+endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
new file mode 100644
index 0000000..f8d01c6
--- /dev/null
+++ b/drivers/input/misc/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for the input misc drivers.
+#
+
+# Each configuration option enables a list of files.
+
+obj-$(CONFIG_INPUT_SPARCSPKR) += sparcspkr.o
+obj-$(CONFIG_INPUT_PCSPKR) += pcspkr.o
+obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o
+obj-$(CONFIG_INPUT_98SPKR) += 98spkr.o
+obj-$(CONFIG_INPUT_UINPUT) += uinput.o
+obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c
new file mode 100644
index 0000000..1cd7657
--- /dev/null
+++ b/drivers/input/misc/hp_sdc_rtc.c
@@ -0,0 +1,724 @@
+/*
+ * HP i8042 SDC + MSM-58321 BBRTC driver.
+ *
+ * Copyright (c) 2001 Brian S. Julin
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ *
+ * References:
+ * System Device Controller Microprocessor Firmware Theory of Operation
+ * for Part Number 1820-4784 Revision B. Dwg No. A-1820-4784-2
+ * efirtc.c by Stephane Eranian/Hewlett Packard
+ *
+ */
+
+#include <linux/hp_sdc.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/time.h>
+#include <linux/miscdevice.h>
+#include <linux/proc_fs.h>
+#include <linux/poll.h>
+#include <linux/rtc.h>
+
+MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
+MODULE_DESCRIPTION("HP i8042 SDC + MSM-58321 RTC Driver");
+MODULE_LICENSE("Dual BSD/GPL");
+
+#define RTC_VERSION "1.10d"
+
+static unsigned long epoch = 2000;
+
+static struct semaphore i8042tregs;
+
+static hp_sdc_irqhook hp_sdc_rtc_isr;
+
+static struct fasync_struct *hp_sdc_rtc_async_queue;
+
+static DECLARE_WAIT_QUEUE_HEAD(hp_sdc_rtc_wait);
+
+static loff_t hp_sdc_rtc_llseek(struct file *file, loff_t offset, int origin);
+
+static ssize_t hp_sdc_rtc_read(struct file *file, char *buf,
+ size_t count, loff_t *ppos);
+
+static int hp_sdc_rtc_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg);
+
+static unsigned int hp_sdc_rtc_poll(struct file *file, poll_table *wait);
+
+static int hp_sdc_rtc_open(struct inode *inode, struct file *file);
+static int hp_sdc_rtc_release(struct inode *inode, struct file *file);
+static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on);
+
+static int hp_sdc_rtc_read_proc(char *page, char **start, off_t off,
+ int count, int *eof, void *data);
+
+static void hp_sdc_rtc_isr (int irq, void *dev_id,
+ uint8_t status, uint8_t data)
+{
+ return;
+}
+
+static int hp_sdc_rtc_do_read_bbrtc (struct rtc_time *rtctm)
+{
+ struct semaphore tsem;
+ hp_sdc_transaction t;
+ uint8_t tseq[91];
+ int i;
+
+ i = 0;
+ while (i < 91) {
+ tseq[i++] = HP_SDC_ACT_DATAREG |
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN;
+ tseq[i++] = 0x01; /* write i8042[0x70] */
+ tseq[i] = i / 7; /* BBRTC reg address */
+ i++;
+ tseq[i++] = HP_SDC_CMD_DO_RTCR; /* Trigger command */
+ tseq[i++] = 2; /* expect 1 stat/dat pair back. */
+ i++; i++; /* buffer for stat/dat pair */
+ }
+ tseq[84] |= HP_SDC_ACT_SEMAPHORE;
+ t.endidx = 91;
+ t.seq = tseq;
+ t.act.semaphore = &tsem;
+ init_MUTEX_LOCKED(&tsem);
+
+ if (hp_sdc_enqueue_transaction(&t)) return -1;
+
+ down_interruptible(&tsem); /* Put ourselves to sleep for results. */
+
+ /* Check for nonpresence of BBRTC */
+ if (!((tseq[83] | tseq[90] | tseq[69] | tseq[76] |
+ tseq[55] | tseq[62] | tseq[34] | tseq[41] |
+ tseq[20] | tseq[27] | tseq[6] | tseq[13]) & 0x0f))
+ return -1;
+
+ memset(rtctm, 0, sizeof(struct rtc_time));
+ rtctm->tm_year = (tseq[83] & 0x0f) + (tseq[90] & 0x0f) * 10;
+ rtctm->tm_mon = (tseq[69] & 0x0f) + (tseq[76] & 0x0f) * 10;
+ rtctm->tm_mday = (tseq[55] & 0x0f) + (tseq[62] & 0x0f) * 10;
+ rtctm->tm_wday = (tseq[48] & 0x0f);
+ rtctm->tm_hour = (tseq[34] & 0x0f) + (tseq[41] & 0x0f) * 10;
+ rtctm->tm_min = (tseq[20] & 0x0f) + (tseq[27] & 0x0f) * 10;
+ rtctm->tm_sec = (tseq[6] & 0x0f) + (tseq[13] & 0x0f) * 10;
+
+ return 0;
+}
+
+static int hp_sdc_rtc_read_bbrtc (struct rtc_time *rtctm)
+{
+ struct rtc_time tm, tm_last;
+ int i = 0;
+
+ /* MSM-58321 has no read latch, so must read twice and compare. */
+
+ if (hp_sdc_rtc_do_read_bbrtc(&tm_last)) return -1;
+ if (hp_sdc_rtc_do_read_bbrtc(&tm)) return -1;
+
+ while (memcmp(&tm, &tm_last, sizeof(struct rtc_time))) {
+ if (i++ > 4) return -1;
+ memcpy(&tm_last, &tm, sizeof(struct rtc_time));
+ if (hp_sdc_rtc_do_read_bbrtc(&tm)) return -1;
+ }
+
+ memcpy(rtctm, &tm, sizeof(struct rtc_time));
+
+ return 0;
+}
+
+
+static int64_t hp_sdc_rtc_read_i8042timer (uint8_t loadcmd, int numreg)
+{
+ hp_sdc_transaction t;
+ uint8_t tseq[26] = {
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
+ 0,
+ HP_SDC_CMD_READ_T1, 2, 0, 0,
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
+ HP_SDC_CMD_READ_T2, 2, 0, 0,
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
+ HP_SDC_CMD_READ_T3, 2, 0, 0,
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
+ HP_SDC_CMD_READ_T4, 2, 0, 0,
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
+ HP_SDC_CMD_READ_T5, 2, 0, 0
+ };
+
+ t.endidx = numreg * 5;
+
+ tseq[1] = loadcmd;
+ tseq[t.endidx - 4] |= HP_SDC_ACT_SEMAPHORE; /* numreg assumed > 1 */
+
+ t.seq = tseq;
+ t.act.semaphore = &i8042tregs;
+
+ down_interruptible(&i8042tregs); /* Sleep if output regs in use. */
+
+ if (hp_sdc_enqueue_transaction(&t)) return -1;
+
+ down_interruptible(&i8042tregs); /* Sleep until results come back. */
+ up(&i8042tregs);
+
+ return (tseq[5] |
+ ((uint64_t)(tseq[10]) << 8) | ((uint64_t)(tseq[15]) << 16) |
+ ((uint64_t)(tseq[20]) << 24) | ((uint64_t)(tseq[25]) << 32));
+}
+
+
+/* Read the i8042 real-time clock */
+static inline int hp_sdc_rtc_read_rt(struct timeval *res) {
+ int64_t raw;
+ uint32_t tenms;
+ unsigned int days;
+
+ raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_RT, 5);
+ if (raw < 0) return -1;
+
+ tenms = (uint32_t)raw & 0xffffff;
+ days = (unsigned int)(raw >> 24) & 0xffff;
+
+ res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
+ res->tv_sec = (time_t)(tenms / 100) + days * 86400;
+
+ return 0;
+}
+
+
+/* Read the i8042 fast handshake timer */
+static inline int hp_sdc_rtc_read_fhs(struct timeval *res) {
+ uint64_t raw;
+ unsigned int tenms;
+
+ raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_FHS, 2);
+ if (raw < 0) return -1;
+
+ tenms = (unsigned int)raw & 0xffff;
+
+ res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
+ res->tv_sec = (time_t)(tenms / 100);
+
+ return 0;
+}
+
+
+/* Read the i8042 match timer (a.k.a. alarm) */
+static inline int hp_sdc_rtc_read_mt(struct timeval *res) {
+ int64_t raw;
+ uint32_t tenms;
+
+ raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_MT, 3);
+ if (raw < 0) return -1;
+
+ tenms = (uint32_t)raw & 0xffffff;
+
+ res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
+ res->tv_sec = (time_t)(tenms / 100);
+
+ return 0;
+}
+
+
+/* Read the i8042 delay timer */
+static inline int hp_sdc_rtc_read_dt(struct timeval *res) {
+ int64_t raw;
+ uint32_t tenms;
+
+ raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_DT, 3);
+ if (raw < 0) return -1;
+
+ tenms = (uint32_t)raw & 0xffffff;
+
+ res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
+ res->tv_sec = (time_t)(tenms / 100);
+
+ return 0;
+}
+
+
+/* Read the i8042 cycle timer (a.k.a. periodic) */
+static inline int hp_sdc_rtc_read_ct(struct timeval *res) {
+ int64_t raw;
+ uint32_t tenms;
+
+ raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_CT, 3);
+ if (raw < 0) return -1;
+
+ tenms = (uint32_t)raw & 0xffffff;
+
+ res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
+ res->tv_sec = (time_t)(tenms / 100);
+
+ return 0;
+}
+
+
+/* Set the i8042 real-time clock */
+static int hp_sdc_rtc_set_rt (struct timeval *setto)
+{
+ uint32_t tenms;
+ unsigned int days;
+ hp_sdc_transaction t;
+ uint8_t tseq[11] = {
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
+ HP_SDC_CMD_SET_RTMS, 3, 0, 0, 0,
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
+ HP_SDC_CMD_SET_RTD, 2, 0, 0
+ };
+
+ t.endidx = 10;
+
+ if (0xffff < setto->tv_sec / 86400) return -1;
+ days = setto->tv_sec / 86400;
+ if (0xffff < setto->tv_usec / 1000000 / 86400) return -1;
+ days += ((setto->tv_sec % 86400) + setto->tv_usec / 1000000) / 86400;
+ if (days > 0xffff) return -1;
+
+ if (0xffffff < setto->tv_sec) return -1;
+ tenms = setto->tv_sec * 100;
+ if (0xffffff < setto->tv_usec / 10000) return -1;
+ tenms += setto->tv_usec / 10000;
+ if (tenms > 0xffffff) return -1;
+
+ tseq[3] = (uint8_t)(tenms & 0xff);
+ tseq[4] = (uint8_t)((tenms >> 8) & 0xff);
+ tseq[5] = (uint8_t)((tenms >> 16) & 0xff);
+
+ tseq[9] = (uint8_t)(days & 0xff);
+ tseq[10] = (uint8_t)((days >> 8) & 0xff);
+
+ t.seq = tseq;
+
+ if (hp_sdc_enqueue_transaction(&t)) return -1;
+ return 0;
+}
+
+/* Set the i8042 fast handshake timer */
+static int hp_sdc_rtc_set_fhs (struct timeval *setto)
+{
+ uint32_t tenms;
+ hp_sdc_transaction t;
+ uint8_t tseq[5] = {
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
+ HP_SDC_CMD_SET_FHS, 2, 0, 0
+ };
+
+ t.endidx = 4;
+
+ if (0xffff < setto->tv_sec) return -1;
+ tenms = setto->tv_sec * 100;
+ if (0xffff < setto->tv_usec / 10000) return -1;
+ tenms += setto->tv_usec / 10000;
+ if (tenms > 0xffff) return -1;
+
+ tseq[3] = (uint8_t)(tenms & 0xff);
+ tseq[4] = (uint8_t)((tenms >> 8) & 0xff);
+
+ t.seq = tseq;
+
+ if (hp_sdc_enqueue_transaction(&t)) return -1;
+ return 0;
+}
+
+
+/* Set the i8042 match timer (a.k.a. alarm) */
+#define hp_sdc_rtc_set_mt (setto) \
+ hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_MT)
+
+/* Set the i8042 delay timer */
+#define hp_sdc_rtc_set_dt (setto) \
+ hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_DT)
+
+/* Set the i8042 cycle timer (a.k.a. periodic) */
+#define hp_sdc_rtc_set_ct (setto) \
+ hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_CT)
+
+/* Set one of the i8042 3-byte wide timers */
+static int hp_sdc_rtc_set_i8042timer (struct timeval *setto, uint8_t setcmd)
+{
+ uint32_t tenms;
+ hp_sdc_transaction t;
+ uint8_t tseq[6] = {
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
+ 0, 3, 0, 0, 0
+ };
+
+ t.endidx = 6;
+
+ if (0xffffff < setto->tv_sec) return -1;
+ tenms = setto->tv_sec * 100;
+ if (0xffffff < setto->tv_usec / 10000) return -1;
+ tenms += setto->tv_usec / 10000;
+ if (tenms > 0xffffff) return -1;
+
+ tseq[1] = setcmd;
+ tseq[3] = (uint8_t)(tenms & 0xff);
+ tseq[4] = (uint8_t)((tenms >> 8) & 0xff);
+ tseq[5] = (uint8_t)((tenms >> 16) & 0xff);
+
+ t.seq = tseq;
+
+ if (hp_sdc_enqueue_transaction(&t)) {
+ return -1;
+ }
+ return 0;
+}
+
+static loff_t hp_sdc_rtc_llseek(struct file *file, loff_t offset, int origin)
+{
+ return -ESPIPE;
+}
+
+static ssize_t hp_sdc_rtc_read(struct file *file, char *buf,
+ size_t count, loff_t *ppos) {
+ ssize_t retval;
+
+ if (count < sizeof(unsigned long))
+ return -EINVAL;
+
+ retval = put_user(68, (unsigned long *)buf);
+ return retval;
+}
+
+static unsigned int hp_sdc_rtc_poll(struct file *file, poll_table *wait)
+{
+ unsigned long l;
+
+ l = 0;
+ if (l != 0)
+ return POLLIN | POLLRDNORM;
+ return 0;
+}
+
+static int hp_sdc_rtc_open(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+static int hp_sdc_rtc_release(struct inode *inode, struct file *file)
+{
+ /* Turn off interrupts? */
+
+ if (file->f_flags & FASYNC) {
+ hp_sdc_rtc_fasync (-1, file, 0);
+ }
+
+ return 0;
+}
+
+static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on)
+{
+ return fasync_helper (fd, filp, on, &hp_sdc_rtc_async_queue);
+}
+
+static int hp_sdc_rtc_proc_output (char *buf)
+{
+#define YN(bit) ("no")
+#define NY(bit) ("yes")
+ char *p;
+ struct rtc_time tm;
+ struct timeval tv;
+
+ memset(&tm, 0, sizeof(struct rtc_time));
+
+ p = buf;
+
+ if (hp_sdc_rtc_read_bbrtc(&tm)) {
+ p += sprintf(p, "BBRTC\t\t: READ FAILED!\n");
+ } else {
+ p += sprintf(p,
+ "rtc_time\t: %02d:%02d:%02d\n"
+ "rtc_date\t: %04d-%02d-%02d\n"
+ "rtc_epoch\t: %04lu\n",
+ tm.tm_hour, tm.tm_min, tm.tm_sec,
+ tm.tm_year + 1900, tm.tm_mon + 1,
+ tm.tm_mday, epoch);
+ }
+
+ if (hp_sdc_rtc_read_rt(&tv)) {
+ p += sprintf(p, "i8042 rtc\t: READ FAILED!\n");
+ } else {
+ p += sprintf(p, "i8042 rtc\t: %ld.%02d seconds\n",
+ tv.tv_sec, tv.tv_usec/1000);
+ }
+
+ if (hp_sdc_rtc_read_fhs(&tv)) {
+ p += sprintf(p, "handshake\t: READ FAILED!\n");
+ } else {
+ p += sprintf(p, "handshake\t: %ld.%02d seconds\n",
+ tv.tv_sec, tv.tv_usec/1000);
+ }
+
+ if (hp_sdc_rtc_read_mt(&tv)) {
+ p += sprintf(p, "alarm\t\t: READ FAILED!\n");
+ } else {
+ p += sprintf(p, "alarm\t\t: %ld.%02d seconds\n",
+ tv.tv_sec, tv.tv_usec/1000);
+ }
+
+ if (hp_sdc_rtc_read_dt(&tv)) {
+ p += sprintf(p, "delay\t\t: READ FAILED!\n");
+ } else {
+ p += sprintf(p, "delay\t\t: %ld.%02d seconds\n",
+ tv.tv_sec, tv.tv_usec/1000);
+ }
+
+ if (hp_sdc_rtc_read_ct(&tv)) {
+ p += sprintf(p, "periodic\t: READ FAILED!\n");
+ } else {
+ p += sprintf(p, "periodic\t: %ld.%02d seconds\n",
+ tv.tv_sec, tv.tv_usec/1000);
+ }
+
+ p += sprintf(p,
+ "DST_enable\t: %s\n"
+ "BCD\t\t: %s\n"
+ "24hr\t\t: %s\n"
+ "square_wave\t: %s\n"
+ "alarm_IRQ\t: %s\n"
+ "update_IRQ\t: %s\n"
+ "periodic_IRQ\t: %s\n"
+ "periodic_freq\t: %ld\n"
+ "batt_status\t: %s\n",
+ YN(RTC_DST_EN),
+ NY(RTC_DM_BINARY),
+ YN(RTC_24H),
+ YN(RTC_SQWE),
+ YN(RTC_AIE),
+ YN(RTC_UIE),
+ YN(RTC_PIE),
+ 1UL,
+ 1 ? "okay" : "dead");
+
+ return p - buf;
+#undef YN
+#undef NY
+}
+
+static int hp_sdc_rtc_read_proc(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ int len = hp_sdc_rtc_proc_output (page);
+ if (len <= off+count) *eof = 1;
+ *start = page + off;
+ len -= off;
+ if (len>count) len = count;
+ if (len<0) len = 0;
+ return len;
+}
+
+static int hp_sdc_rtc_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+#if 1
+ return -EINVAL;
+#else
+
+ struct rtc_time wtime;
+ struct timeval ttime;
+ int use_wtime = 0;
+
+ /* This needs major work. */
+
+ switch (cmd) {
+
+ case RTC_AIE_OFF: /* Mask alarm int. enab. bit */
+ case RTC_AIE_ON: /* Allow alarm interrupts. */
+ case RTC_PIE_OFF: /* Mask periodic int. enab. bit */
+ case RTC_PIE_ON: /* Allow periodic ints */
+ case RTC_UIE_ON: /* Allow ints for RTC updates. */
+ case RTC_UIE_OFF: /* Allow ints for RTC updates. */
+ {
+ /* We cannot mask individual user timers and we
+ cannot tell them apart when they occur, so it
+ would be disingenuous to succeed these IOCTLs */
+ return -EINVAL;
+ }
+ case RTC_ALM_READ: /* Read the present alarm time */
+ {
+ if (hp_sdc_rtc_read_mt(&ttime)) return -EFAULT;
+ if (hp_sdc_rtc_read_bbrtc(&wtime)) return -EFAULT;
+
+ wtime.tm_hour = ttime.tv_sec / 3600; ttime.tv_sec %= 3600;
+ wtime.tm_min = ttime.tv_sec / 60; ttime.tv_sec %= 60;
+ wtime.tm_sec = ttime.tv_sec;
+
+ break;
+ }
+ case RTC_IRQP_READ: /* Read the periodic IRQ rate. */
+ {
+ return put_user(hp_sdc_rtc_freq, (unsigned long *)arg);
+ }
+ case RTC_IRQP_SET: /* Set periodic IRQ rate. */
+ {
+ /*
+ * The max we can do is 100Hz.
+ */
+
+ if ((arg < 1) || (arg > 100)) return -EINVAL;
+ ttime.tv_sec = 0;
+ ttime.tv_usec = 1000000 / arg;
+ if (hp_sdc_rtc_set_ct(&ttime)) return -EFAULT;
+ hp_sdc_rtc_freq = arg;
+ return 0;
+ }
+ case RTC_ALM_SET: /* Store a time into the alarm */
+ {
+ /*
+ * This expects a struct hp_sdc_rtc_time. Writing 0xff means
+ * "don't care" or "match all" for PC timers. The HP SDC
+ * does not support that perk, but it could be emulated fairly
+ * easily. Only the tm_hour, tm_min and tm_sec are used.
+ * We could do it with 10ms accuracy with the HP SDC, if the
+ * rtc interface left us a way to do that.
+ */
+ struct hp_sdc_rtc_time alm_tm;
+
+ if (copy_from_user(&alm_tm, (struct hp_sdc_rtc_time*)arg,
+ sizeof(struct hp_sdc_rtc_time)))
+ return -EFAULT;
+
+ if (alm_tm.tm_hour > 23) return -EINVAL;
+ if (alm_tm.tm_min > 59) return -EINVAL;
+ if (alm_tm.tm_sec > 59) return -EINVAL;
+
+ ttime.sec = alm_tm.tm_hour * 3600 +
+ alm_tm.tm_min * 60 + alm_tm.tm_sec;
+ ttime.usec = 0;
+ if (hp_sdc_rtc_set_mt(&ttime)) return -EFAULT;
+ return 0;
+ }
+ case RTC_RD_TIME: /* Read the time/date from RTC */
+ {
+ if (hp_sdc_rtc_read_bbrtc(&wtime)) return -EFAULT;
+ break;
+ }
+ case RTC_SET_TIME: /* Set the RTC */
+ {
+ struct rtc_time hp_sdc_rtc_tm;
+ unsigned char mon, day, hrs, min, sec, leap_yr;
+ unsigned int yrs;
+
+ if (!capable(CAP_SYS_TIME))
+ return -EACCES;
+ if (copy_from_user(&hp_sdc_rtc_tm, (struct rtc_time *)arg,
+ sizeof(struct rtc_time)))
+ return -EFAULT;
+
+ yrs = hp_sdc_rtc_tm.tm_year + 1900;
+ mon = hp_sdc_rtc_tm.tm_mon + 1; /* tm_mon starts at zero */
+ day = hp_sdc_rtc_tm.tm_mday;
+ hrs = hp_sdc_rtc_tm.tm_hour;
+ min = hp_sdc_rtc_tm.tm_min;
+ sec = hp_sdc_rtc_tm.tm_sec;
+
+ if (yrs < 1970)
+ return -EINVAL;
+
+ leap_yr = ((!(yrs % 4) && (yrs % 100)) || !(yrs % 400));
+
+ if ((mon > 12) || (day == 0))
+ return -EINVAL;
+ if (day > (days_in_mo[mon] + ((mon == 2) && leap_yr)))
+ return -EINVAL;
+ if ((hrs >= 24) || (min >= 60) || (sec >= 60))
+ return -EINVAL;
+
+ if ((yrs -= eH) > 255) /* They are unsigned */
+ return -EINVAL;
+
+
+ return 0;
+ }
+ case RTC_EPOCH_READ: /* Read the epoch. */
+ {
+ return put_user (epoch, (unsigned long *)arg);
+ }
+ case RTC_EPOCH_SET: /* Set the epoch. */
+ {
+ /*
+ * There were no RTC clocks before 1900.
+ */
+ if (arg < 1900)
+ return -EINVAL;
+ if (!capable(CAP_SYS_TIME))
+ return -EACCES;
+
+ epoch = arg;
+ return 0;
+ }
+ default:
+ return -EINVAL;
+ }
+ return copy_to_user((void *)arg, &wtime, sizeof wtime) ? -EFAULT : 0;
+#endif
+}
+
+static struct file_operations hp_sdc_rtc_fops = {
+ .owner = THIS_MODULE,
+ .llseek = hp_sdc_rtc_llseek,
+ .read = hp_sdc_rtc_read,
+ .poll = hp_sdc_rtc_poll,
+ .ioctl = hp_sdc_rtc_ioctl,
+ .open = hp_sdc_rtc_open,
+ .release = hp_sdc_rtc_release,
+ .fasync = hp_sdc_rtc_fasync,
+};
+
+static struct miscdevice hp_sdc_rtc_dev = {
+ .minor = RTC_MINOR,
+ .name = "rtc_HIL",
+ .fops = &hp_sdc_rtc_fops
+};
+
+static int __init hp_sdc_rtc_init(void)
+{
+ int ret;
+
+ init_MUTEX(&i8042tregs);
+
+ if ((ret = hp_sdc_request_timer_irq(&hp_sdc_rtc_isr)))
+ return ret;
+ misc_register(&hp_sdc_rtc_dev);
+ create_proc_read_entry ("driver/rtc", 0, 0,
+ hp_sdc_rtc_read_proc, NULL);
+
+ printk(KERN_INFO "HP i8042 SDC + MSM-58321 RTC support loaded "
+ "(RTC v " RTC_VERSION ")\n");
+
+ return 0;
+}
+
+static void __exit hp_sdc_rtc_exit(void)
+{
+ remove_proc_entry ("driver/rtc", NULL);
+ misc_deregister(&hp_sdc_rtc_dev);
+ hp_sdc_release_timer_irq(hp_sdc_rtc_isr);
+ printk(KERN_INFO "HP i8042 SDC + MSM-58321 RTC support unloaded\n");
+}
+
+module_init(hp_sdc_rtc_init);
+module_exit(hp_sdc_rtc_exit);
diff --git a/drivers/input/misc/m68kspkr.c b/drivers/input/misc/m68kspkr.c
new file mode 100644
index 0000000..64abdd9
--- /dev/null
+++ b/drivers/input/misc/m68kspkr.c
@@ -0,0 +1,83 @@
+/*
+ * m68k beeper driver for Linux
+ *
+ * Copyright (c) 2002 Richard Zidlicky
+ * Copyright (c) 2002 Vojtech Pavlik
+ * Copyright (c) 1992 Orest Zborowski
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <asm/machdep.h>
+#include <asm/io.h>
+
+MODULE_AUTHOR("Richard Zidlicky <rz@linux-m68k.org>");
+MODULE_DESCRIPTION("m68k beeper driver");
+MODULE_LICENSE("GPL");
+
+static char m68kspkr_name[] = "m68k beeper";
+static char m68kspkr_phys[] = "m68k/generic";
+static struct input_dev m68kspkr_dev;
+
+static int m68kspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ unsigned int count = 0;
+
+ if (type != EV_SND)
+ return -1;
+
+ switch (code) {
+ case SND_BELL: if (value) value = 1000;
+ case SND_TONE: break;
+ default: return -1;
+ }
+
+ if (value > 20 && value < 32767)
+ count = 1193182 / value;
+
+ mach_beep(count, -1);
+
+ return 0;
+}
+
+static int __init m68kspkr_init(void)
+{
+ if (!mach_beep){
+ printk("%s: no lowlevel beep support\n", m68kspkr_name);
+ return -1;
+ }
+
+ m68kspkr_dev.evbit[0] = BIT(EV_SND);
+ m68kspkr_dev.sndbit[0] = BIT(SND_BELL) | BIT(SND_TONE);
+ m68kspkr_dev.event = m68kspkr_event;
+
+ m68kspkr_dev.name = m68kspkr_name;
+ m68kspkr_dev.phys = m68kspkr_phys;
+ m68kspkr_dev.id.bustype = BUS_HOST;
+ m68kspkr_dev.id.vendor = 0x001f;
+ m68kspkr_dev.id.product = 0x0001;
+ m68kspkr_dev.id.version = 0x0100;
+
+ input_register_device(&m68kspkr_dev);
+
+ printk(KERN_INFO "input: %s\n", m68kspkr_name);
+
+ return 0;
+}
+
+static void __exit m68kspkr_exit(void)
+{
+ input_unregister_device(&m68kspkr_dev);
+}
+
+module_init(m68kspkr_init);
+module_exit(m68kspkr_exit);
diff --git a/drivers/input/misc/pcspkr.c b/drivers/input/misc/pcspkr.c
new file mode 100644
index 0000000..3013194
--- /dev/null
+++ b/drivers/input/misc/pcspkr.c
@@ -0,0 +1,97 @@
+/*
+ * PC Speaker beeper driver for Linux
+ *
+ * Copyright (c) 2002 Vojtech Pavlik
+ * Copyright (c) 1992 Orest Zborowski
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <asm/8253pit.h>
+#include <asm/io.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("PC Speaker beeper driver");
+MODULE_LICENSE("GPL");
+
+static char pcspkr_name[] = "PC Speaker";
+static char pcspkr_phys[] = "isa0061/input0";
+static struct input_dev pcspkr_dev;
+
+static DEFINE_SPINLOCK(i8253_beep_lock);
+
+static int pcspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ unsigned int count = 0;
+ unsigned long flags;
+
+ if (type != EV_SND)
+ return -1;
+
+ switch (code) {
+ case SND_BELL: if (value) value = 1000;
+ case SND_TONE: break;
+ default: return -1;
+ }
+
+ if (value > 20 && value < 32767)
+ count = PIT_TICK_RATE / value;
+
+ spin_lock_irqsave(&i8253_beep_lock, flags);
+
+ if (count) {
+ /* enable counter 2 */
+ outb_p(inb_p(0x61) | 3, 0x61);
+ /* set command for counter 2, 2 byte write */
+ outb_p(0xB6, 0x43);
+ /* select desired HZ */
+ outb_p(count & 0xff, 0x42);
+ outb((count >> 8) & 0xff, 0x42);
+ } else {
+ /* disable counter 2 */
+ outb(inb_p(0x61) & 0xFC, 0x61);
+ }
+
+ spin_unlock_irqrestore(&i8253_beep_lock, flags);
+
+ return 0;
+}
+
+static int __init pcspkr_init(void)
+{
+ pcspkr_dev.evbit[0] = BIT(EV_SND);
+ pcspkr_dev.sndbit[0] = BIT(SND_BELL) | BIT(SND_TONE);
+ pcspkr_dev.event = pcspkr_event;
+
+ pcspkr_dev.name = pcspkr_name;
+ pcspkr_dev.phys = pcspkr_phys;
+ pcspkr_dev.id.bustype = BUS_ISA;
+ pcspkr_dev.id.vendor = 0x001f;
+ pcspkr_dev.id.product = 0x0001;
+ pcspkr_dev.id.version = 0x0100;
+
+ input_register_device(&pcspkr_dev);
+
+ printk(KERN_INFO "input: %s\n", pcspkr_name);
+
+ return 0;
+}
+
+static void __exit pcspkr_exit(void)
+{
+ input_unregister_device(&pcspkr_dev);
+ /* turn off the speaker */
+ pcspkr_event(NULL, EV_SND, SND_BELL, 0);
+}
+
+module_init(pcspkr_init);
+module_exit(pcspkr_exit);
diff --git a/drivers/input/misc/sparcspkr.c b/drivers/input/misc/sparcspkr.c
new file mode 100644
index 0000000..cdc3fb3
--- /dev/null
+++ b/drivers/input/misc/sparcspkr.c
@@ -0,0 +1,189 @@
+/*
+ * Driver for PC-speaker like devices found on various Sparc systems.
+ *
+ * Copyright (c) 2002 Vojtech Pavlik
+ * Copyright (c) 2002 David S. Miller (davem@redhat.com)
+ */
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+
+#include <asm/io.h>
+#include <asm/ebus.h>
+#ifdef CONFIG_SPARC64
+#include <asm/isa.h>
+#endif
+
+MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
+MODULE_DESCRIPTION("PC Speaker beeper driver");
+MODULE_LICENSE("GPL");
+
+static unsigned long beep_iobase;
+
+static char *sparcspkr_isa_name = "Sparc ISA Speaker";
+static char *sparcspkr_ebus_name = "Sparc EBUS Speaker";
+static char *sparcspkr_phys = "sparc/input0";
+static struct input_dev sparcspkr_dev;
+
+DEFINE_SPINLOCK(beep_lock);
+
+static void __init init_sparcspkr_struct(void)
+{
+ sparcspkr_dev.evbit[0] = BIT(EV_SND);
+ sparcspkr_dev.sndbit[0] = BIT(SND_BELL) | BIT(SND_TONE);
+
+ sparcspkr_dev.phys = sparcspkr_phys;
+ sparcspkr_dev.id.bustype = BUS_ISA;
+ sparcspkr_dev.id.vendor = 0x001f;
+ sparcspkr_dev.id.product = 0x0001;
+ sparcspkr_dev.id.version = 0x0100;
+}
+
+static int ebus_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ unsigned int count = 0;
+ unsigned long flags;
+
+ if (type != EV_SND)
+ return -1;
+
+ switch (code) {
+ case SND_BELL: if (value) value = 1000;
+ case SND_TONE: break;
+ default: return -1;
+ }
+
+ if (value > 20 && value < 32767)
+ count = 1193182 / value;
+
+ spin_lock_irqsave(&beep_lock, flags);
+
+ /* EBUS speaker only has on/off state, the frequency does not
+ * appear to be programmable.
+ */
+ if (count) {
+ if (beep_iobase & 0x2UL)
+ outb(1, beep_iobase);
+ else
+ outl(1, beep_iobase);
+ } else {
+ if (beep_iobase & 0x2UL)
+ outb(0, beep_iobase);
+ else
+ outl(0, beep_iobase);
+ }
+
+ spin_unlock_irqrestore(&beep_lock, flags);
+
+ return 0;
+}
+
+static int __init init_ebus_beep(struct linux_ebus_device *edev)
+{
+ beep_iobase = edev->resource[0].start;
+
+ init_sparcspkr_struct();
+
+ sparcspkr_dev.name = sparcspkr_ebus_name;
+ sparcspkr_dev.event = ebus_spkr_event;
+
+ input_register_device(&sparcspkr_dev);
+
+ printk(KERN_INFO "input: %s\n", sparcspkr_ebus_name);
+ return 0;
+}
+
+#ifdef CONFIG_SPARC64
+static int isa_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ unsigned int count = 0;
+ unsigned long flags;
+
+ if (type != EV_SND)
+ return -1;
+
+ switch (code) {
+ case SND_BELL: if (value) value = 1000;
+ case SND_TONE: break;
+ default: return -1;
+ }
+
+ if (value > 20 && value < 32767)
+ count = 1193182 / value;
+
+ spin_lock_irqsave(&beep_lock, flags);
+
+ if (count) {
+ /* enable counter 2 */
+ outb(inb(beep_iobase + 0x61) | 3, beep_iobase + 0x61);
+ /* set command for counter 2, 2 byte write */
+ outb(0xB6, beep_iobase + 0x43);
+ /* select desired HZ */
+ outb(count & 0xff, beep_iobase + 0x42);
+ outb((count >> 8) & 0xff, beep_iobase + 0x42);
+ } else {
+ /* disable counter 2 */
+ outb(inb_p(beep_iobase + 0x61) & 0xFC, beep_iobase + 0x61);
+ }
+
+ spin_unlock_irqrestore(&beep_lock, flags);
+
+ return 0;
+}
+
+static int __init init_isa_beep(struct sparc_isa_device *isa_dev)
+{
+ beep_iobase = isa_dev->resource.start;
+
+ init_sparcspkr_struct();
+
+ sparcspkr_dev.name = sparcspkr_isa_name;
+ sparcspkr_dev.event = isa_spkr_event;
+ sparcspkr_dev.id.bustype = BUS_ISA;
+
+ input_register_device(&sparcspkr_dev);
+
+ printk(KERN_INFO "input: %s\n", sparcspkr_isa_name);
+ return 0;
+}
+#endif
+
+static int __init sparcspkr_init(void)
+{
+ struct linux_ebus *ebus;
+ struct linux_ebus_device *edev = NULL;
+#ifdef CONFIG_SPARC64
+ struct sparc_isa_bridge *isa_br;
+ struct sparc_isa_device *isa_dev;
+#endif
+
+ for_each_ebus(ebus) {
+ for_each_ebusdev(edev, ebus) {
+ if (!strcmp(edev->prom_name, "beep"))
+ return init_ebus_beep(edev);
+ }
+ }
+#ifdef CONFIG_SPARC64
+ for_each_isa(isa_br) {
+ for_each_isadev(isa_dev, isa_br) {
+ /* A hack, the beep device's base lives in
+ * the DMA isa node.
+ */
+ if (!strcmp(isa_dev->prom_name, "dma"))
+ return init_isa_beep(isa_dev);
+ }
+ }
+#endif
+
+ return -ENODEV;
+}
+
+static void __exit sparcspkr_exit(void)
+{
+ input_unregister_device(&sparcspkr_dev);
+}
+
+module_init(sparcspkr_init);
+module_exit(sparcspkr_exit);
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
new file mode 100644
index 0000000..158c8e8
--- /dev/null
+++ b/drivers/input/misc/uinput.c
@@ -0,0 +1,620 @@
+/*
+ * User level driver support for input subsystem
+ *
+ * Heavily based on evdev.c by Vojtech Pavlik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that 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
+ *
+ * Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
+ *
+ * Changes/Revisions:
+ * 0.2 16/10/2004 (Micah Dowty <micah@navi.cx>)
+ * - added force feedback support
+ * - added UI_SET_PHYS
+ * 0.1 20/06/2002
+ * - first public version
+ */
+#include <linux/poll.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/smp_lock.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/uinput.h>
+
+static int uinput_dev_open(struct input_dev *dev)
+{
+ return 0;
+}
+
+static void uinput_dev_close(struct input_dev *dev)
+{
+
+}
+
+static int uinput_dev_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ struct uinput_device *udev;
+
+ udev = dev->private;
+
+ udev->buff[udev->head].type = type;
+ udev->buff[udev->head].code = code;
+ udev->buff[udev->head].value = value;
+ do_gettimeofday(&udev->buff[udev->head].time);
+ udev->head = (udev->head + 1) % UINPUT_BUFFER_SIZE;
+
+ wake_up_interruptible(&udev->waitq);
+
+ return 0;
+}
+
+static int uinput_request_alloc_id(struct input_dev *dev, struct uinput_request *request)
+{
+ /* Atomically allocate an ID for the given request. Returns 0 on success. */
+ struct uinput_device *udev = dev->private;
+ int id;
+
+ down(&udev->requests_sem);
+ for (id=0; id<UINPUT_NUM_REQUESTS; id++)
+ if (!udev->requests[id]) {
+ udev->requests[id] = request;
+ request->id = id;
+ up(&udev->requests_sem);
+ return 0;
+ }
+ up(&udev->requests_sem);
+ return -1;
+}
+
+static struct uinput_request* uinput_request_find(struct uinput_device *udev, int id)
+{
+ /* Find an input request, by ID. Returns NULL if the ID isn't valid. */
+ if (id >= UINPUT_NUM_REQUESTS || id < 0)
+ return NULL;
+ if (udev->requests[id]->completed)
+ return NULL;
+ return udev->requests[id];
+}
+
+static void uinput_request_init(struct input_dev *dev, struct uinput_request *request, int code)
+{
+ struct uinput_device *udev = dev->private;
+
+ memset(request, 0, sizeof(struct uinput_request));
+ request->code = code;
+ init_waitqueue_head(&request->waitq);
+
+ /* Allocate an ID. If none are available right away, wait. */
+ request->retval = wait_event_interruptible(udev->requests_waitq,
+ !uinput_request_alloc_id(dev, request));
+}
+
+static void uinput_request_submit(struct input_dev *dev, struct uinput_request *request)
+{
+ struct uinput_device *udev = dev->private;
+ int retval;
+
+ /* Tell our userspace app about this new request by queueing an input event */
+ uinput_dev_event(dev, EV_UINPUT, request->code, request->id);
+
+ /* Wait for the request to complete */
+ retval = wait_event_interruptible(request->waitq, request->completed);
+ if (retval)
+ request->retval = retval;
+
+ /* Release this request's ID, let others know it's available */
+ udev->requests[request->id] = NULL;
+ wake_up_interruptible(&udev->requests_waitq);
+}
+
+static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *effect)
+{
+ struct uinput_request request;
+
+ if (!test_bit(EV_FF, dev->evbit))
+ return -ENOSYS;
+
+ uinput_request_init(dev, &request, UI_FF_UPLOAD);
+ if (request.retval)
+ return request.retval;
+ request.u.effect = effect;
+ uinput_request_submit(dev, &request);
+ return request.retval;
+}
+
+static int uinput_dev_erase_effect(struct input_dev *dev, int effect_id)
+{
+ struct uinput_request request;
+
+ if (!test_bit(EV_FF, dev->evbit))
+ return -ENOSYS;
+
+ uinput_request_init(dev, &request, UI_FF_ERASE);
+ if (request.retval)
+ return request.retval;
+ request.u.effect_id = effect_id;
+ uinput_request_submit(dev, &request);
+ return request.retval;
+}
+
+static int uinput_create_device(struct uinput_device *udev)
+{
+ if (!udev->dev->name) {
+ printk(KERN_DEBUG "%s: write device info first\n", UINPUT_NAME);
+ return -EINVAL;
+ }
+
+ udev->dev->open = uinput_dev_open;
+ udev->dev->close = uinput_dev_close;
+ udev->dev->event = uinput_dev_event;
+ udev->dev->upload_effect = uinput_dev_upload_effect;
+ udev->dev->erase_effect = uinput_dev_erase_effect;
+ udev->dev->private = udev;
+
+ init_waitqueue_head(&(udev->waitq));
+
+ input_register_device(udev->dev);
+
+ set_bit(UIST_CREATED, &(udev->state));
+
+ return 0;
+}
+
+static int uinput_destroy_device(struct uinput_device *udev)
+{
+ if (!test_bit(UIST_CREATED, &(udev->state))) {
+ printk(KERN_WARNING "%s: create the device first\n", UINPUT_NAME);
+ return -EINVAL;
+ }
+
+ input_unregister_device(udev->dev);
+
+ clear_bit(UIST_CREATED, &(udev->state));
+
+ return 0;
+}
+
+static int uinput_open(struct inode *inode, struct file *file)
+{
+ struct uinput_device *newdev;
+ struct input_dev *newinput;
+
+ newdev = kmalloc(sizeof(struct uinput_device), GFP_KERNEL);
+ if (!newdev)
+ goto error;
+ memset(newdev, 0, sizeof(struct uinput_device));
+ init_MUTEX(&newdev->requests_sem);
+ init_waitqueue_head(&newdev->requests_waitq);
+
+ newinput = kmalloc(sizeof(struct input_dev), GFP_KERNEL);
+ if (!newinput)
+ goto cleanup;
+ memset(newinput, 0, sizeof(struct input_dev));
+
+ newdev->dev = newinput;
+
+ file->private_data = newdev;
+
+ return 0;
+cleanup:
+ kfree(newdev);
+error:
+ return -ENOMEM;
+}
+
+static int uinput_validate_absbits(struct input_dev *dev)
+{
+ unsigned int cnt;
+ int retval = 0;
+
+ for (cnt = 0; cnt < ABS_MAX + 1; cnt++) {
+ if (!test_bit(cnt, dev->absbit))
+ continue;
+
+ if ((dev->absmax[cnt] <= dev->absmin[cnt])) {
+ printk(KERN_DEBUG
+ "%s: invalid abs[%02x] min:%d max:%d\n",
+ UINPUT_NAME, cnt,
+ dev->absmin[cnt], dev->absmax[cnt]);
+ retval = -EINVAL;
+ break;
+ }
+
+ if (dev->absflat[cnt] > (dev->absmax[cnt] - dev->absmin[cnt])) {
+ printk(KERN_DEBUG
+ "%s: absflat[%02x] out of range: %d "
+ "(min:%d/max:%d)\n",
+ UINPUT_NAME, cnt, dev->absflat[cnt],
+ dev->absmin[cnt], dev->absmax[cnt]);
+ retval = -EINVAL;
+ break;
+ }
+ }
+ return retval;
+}
+
+static int uinput_alloc_device(struct file *file, const char __user *buffer, size_t count)
+{
+ struct uinput_user_dev *user_dev;
+ struct input_dev *dev;
+ struct uinput_device *udev;
+ int size,
+ retval;
+
+ retval = count;
+
+ udev = file->private_data;
+ dev = udev->dev;
+
+ user_dev = kmalloc(sizeof(*user_dev), GFP_KERNEL);
+ if (!user_dev) {
+ retval = -ENOMEM;
+ goto exit;
+ }
+
+ if (copy_from_user(user_dev, buffer, sizeof(struct uinput_user_dev))) {
+ retval = -EFAULT;
+ goto exit;
+ }
+
+ if (NULL != dev->name)
+ kfree(dev->name);
+
+ size = strnlen(user_dev->name, UINPUT_MAX_NAME_SIZE) + 1;
+ dev->name = kmalloc(size, GFP_KERNEL);
+ if (!dev->name) {
+ retval = -ENOMEM;
+ goto exit;
+ }
+
+ strlcpy(dev->name, user_dev->name, size);
+ dev->id.bustype = user_dev->id.bustype;
+ dev->id.vendor = user_dev->id.vendor;
+ dev->id.product = user_dev->id.product;
+ dev->id.version = user_dev->id.version;
+ dev->ff_effects_max = user_dev->ff_effects_max;
+
+ size = sizeof(int) * (ABS_MAX + 1);
+ memcpy(dev->absmax, user_dev->absmax, size);
+ memcpy(dev->absmin, user_dev->absmin, size);
+ memcpy(dev->absfuzz, user_dev->absfuzz, size);
+ memcpy(dev->absflat, user_dev->absflat, size);
+
+ /* check if absmin/absmax/absfuzz/absflat are filled as
+ * told in Documentation/input/input-programming.txt */
+ if (test_bit(EV_ABS, dev->evbit)) {
+ retval = uinput_validate_absbits(dev);
+ if (retval < 0)
+ kfree(dev->name);
+ }
+
+exit:
+ kfree(user_dev);
+ return retval;
+}
+
+static ssize_t uinput_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct uinput_device *udev = file->private_data;
+
+ if (test_bit(UIST_CREATED, &(udev->state))) {
+ struct input_event ev;
+
+ if (copy_from_user(&ev, buffer, sizeof(struct input_event)))
+ return -EFAULT;
+ input_event(udev->dev, ev.type, ev.code, ev.value);
+ }
+ else
+ count = uinput_alloc_device(file, buffer, count);
+
+ return count;
+}
+
+static ssize_t uinput_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct uinput_device *udev = file->private_data;
+ int retval = 0;
+
+ if (!test_bit(UIST_CREATED, &(udev->state)))
+ return -ENODEV;
+
+ if ((udev->head == udev->tail) && (file->f_flags & O_NONBLOCK))
+ return -EAGAIN;
+
+ retval = wait_event_interruptible(udev->waitq,
+ (udev->head != udev->tail) ||
+ !test_bit(UIST_CREATED, &(udev->state)));
+
+ if (retval)
+ return retval;
+
+ if (!test_bit(UIST_CREATED, &(udev->state)))
+ return -ENODEV;
+
+ while ((udev->head != udev->tail) &&
+ (retval + sizeof(struct input_event) <= count)) {
+ if (copy_to_user(buffer + retval, &(udev->buff[udev->tail]),
+ sizeof(struct input_event))) return -EFAULT;
+ udev->tail = (udev->tail + 1) % UINPUT_BUFFER_SIZE;
+ retval += sizeof(struct input_event);
+ }
+
+ return retval;
+}
+
+static unsigned int uinput_poll(struct file *file, poll_table *wait)
+{
+ struct uinput_device *udev = file->private_data;
+
+ poll_wait(file, &udev->waitq, wait);
+
+ if (udev->head != udev->tail)
+ return POLLIN | POLLRDNORM;
+
+ return 0;
+}
+
+static int uinput_burn_device(struct uinput_device *udev)
+{
+ if (test_bit(UIST_CREATED, &(udev->state)))
+ uinput_destroy_device(udev);
+
+ if (NULL != udev->dev->name)
+ kfree(udev->dev->name);
+ if (NULL != udev->dev->phys)
+ kfree(udev->dev->phys);
+
+ kfree(udev->dev);
+ kfree(udev);
+
+ return 0;
+}
+
+static int uinput_close(struct inode *inode, struct file *file)
+{
+ return uinput_burn_device(file->private_data);
+}
+
+static int uinput_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+ int retval = 0;
+ struct uinput_device *udev;
+ void __user *p = (void __user *)arg;
+ struct uinput_ff_upload ff_up;
+ struct uinput_ff_erase ff_erase;
+ struct uinput_request *req;
+ int length;
+
+ udev = file->private_data;
+
+ /* device attributes can not be changed after the device is created */
+ switch (cmd) {
+ case UI_SET_EVBIT:
+ case UI_SET_KEYBIT:
+ case UI_SET_RELBIT:
+ case UI_SET_ABSBIT:
+ case UI_SET_MSCBIT:
+ case UI_SET_LEDBIT:
+ case UI_SET_SNDBIT:
+ case UI_SET_FFBIT:
+ case UI_SET_PHYS:
+ if (test_bit(UIST_CREATED, &(udev->state)))
+ return -EINVAL;
+ }
+
+ switch (cmd) {
+ case UI_DEV_CREATE:
+ retval = uinput_create_device(udev);
+ break;
+
+ case UI_DEV_DESTROY:
+ retval = uinput_destroy_device(udev);
+ break;
+
+ case UI_SET_EVBIT:
+ if (arg > EV_MAX) {
+ retval = -EINVAL;
+ break;
+ }
+ set_bit(arg, udev->dev->evbit);
+ break;
+
+ case UI_SET_KEYBIT:
+ if (arg > KEY_MAX) {
+ retval = -EINVAL;
+ break;
+ }
+ set_bit(arg, udev->dev->keybit);
+ break;
+
+ case UI_SET_RELBIT:
+ if (arg > REL_MAX) {
+ retval = -EINVAL;
+ break;
+ }
+ set_bit(arg, udev->dev->relbit);
+ break;
+
+ case UI_SET_ABSBIT:
+ if (arg > ABS_MAX) {
+ retval = -EINVAL;
+ break;
+ }
+ set_bit(arg, udev->dev->absbit);
+ break;
+
+ case UI_SET_MSCBIT:
+ if (arg > MSC_MAX) {
+ retval = -EINVAL;
+ break;
+ }
+ set_bit(arg, udev->dev->mscbit);
+ break;
+
+ case UI_SET_LEDBIT:
+ if (arg > LED_MAX) {
+ retval = -EINVAL;
+ break;
+ }
+ set_bit(arg, udev->dev->ledbit);
+ break;
+
+ case UI_SET_SNDBIT:
+ if (arg > SND_MAX) {
+ retval = -EINVAL;
+ break;
+ }
+ set_bit(arg, udev->dev->sndbit);
+ break;
+
+ case UI_SET_FFBIT:
+ if (arg > FF_MAX) {
+ retval = -EINVAL;
+ break;
+ }
+ set_bit(arg, udev->dev->ffbit);
+ break;
+
+ case UI_SET_PHYS:
+ length = strnlen_user(p, 1024);
+ if (length <= 0) {
+ retval = -EFAULT;
+ break;
+ }
+ if (NULL != udev->dev->phys)
+ kfree(udev->dev->phys);
+ udev->dev->phys = kmalloc(length, GFP_KERNEL);
+ if (!udev->dev->phys) {
+ retval = -ENOMEM;
+ break;
+ }
+ if (copy_from_user(udev->dev->phys, p, length)) {
+ retval = -EFAULT;
+ kfree(udev->dev->phys);
+ udev->dev->phys = NULL;
+ break;
+ }
+ udev->dev->phys[length-1] = '\0';
+ break;
+
+ case UI_BEGIN_FF_UPLOAD:
+ if (copy_from_user(&ff_up, p, sizeof(ff_up))) {
+ retval = -EFAULT;
+ break;
+ }
+ req = uinput_request_find(udev, ff_up.request_id);
+ if (!(req && req->code==UI_FF_UPLOAD && req->u.effect)) {
+ retval = -EINVAL;
+ break;
+ }
+ ff_up.retval = 0;
+ memcpy(&ff_up.effect, req->u.effect, sizeof(struct ff_effect));
+ if (copy_to_user(p, &ff_up, sizeof(ff_up))) {
+ retval = -EFAULT;
+ break;
+ }
+ break;
+
+ case UI_BEGIN_FF_ERASE:
+ if (copy_from_user(&ff_erase, p, sizeof(ff_erase))) {
+ retval = -EFAULT;
+ break;
+ }
+ req = uinput_request_find(udev, ff_erase.request_id);
+ if (!(req && req->code==UI_FF_ERASE)) {
+ retval = -EINVAL;
+ break;
+ }
+ ff_erase.retval = 0;
+ ff_erase.effect_id = req->u.effect_id;
+ if (copy_to_user(p, &ff_erase, sizeof(ff_erase))) {
+ retval = -EFAULT;
+ break;
+ }
+ break;
+
+ case UI_END_FF_UPLOAD:
+ if (copy_from_user(&ff_up, p, sizeof(ff_up))) {
+ retval = -EFAULT;
+ break;
+ }
+ req = uinput_request_find(udev, ff_up.request_id);
+ if (!(req && req->code==UI_FF_UPLOAD && req->u.effect)) {
+ retval = -EINVAL;
+ break;
+ }
+ req->retval = ff_up.retval;
+ memcpy(req->u.effect, &ff_up.effect, sizeof(struct ff_effect));
+ req->completed = 1;
+ wake_up_interruptible(&req->waitq);
+ break;
+
+ case UI_END_FF_ERASE:
+ if (copy_from_user(&ff_erase, p, sizeof(ff_erase))) {
+ retval = -EFAULT;
+ break;
+ }
+ req = uinput_request_find(udev, ff_erase.request_id);
+ if (!(req && req->code==UI_FF_ERASE)) {
+ retval = -EINVAL;
+ break;
+ }
+ req->retval = ff_erase.retval;
+ req->completed = 1;
+ wake_up_interruptible(&req->waitq);
+ break;
+
+ default:
+ retval = -EINVAL;
+ }
+ return retval;
+}
+
+static struct file_operations uinput_fops = {
+ .owner = THIS_MODULE,
+ .open = uinput_open,
+ .release = uinput_close,
+ .read = uinput_read,
+ .write = uinput_write,
+ .poll = uinput_poll,
+ .ioctl = uinput_ioctl,
+};
+
+static struct miscdevice uinput_misc = {
+ .fops = &uinput_fops,
+ .minor = UINPUT_MINOR,
+ .name = UINPUT_NAME,
+};
+
+static int __init uinput_init(void)
+{
+ return misc_register(&uinput_misc);
+}
+
+static void __exit uinput_exit(void)
+{
+ misc_deregister(&uinput_misc);
+}
+
+MODULE_AUTHOR("Aristeu Sergio Rozanski Filho");
+MODULE_DESCRIPTION("User level driver support for input subsystem");
+MODULE_LICENSE("GPL");
+
+module_init(uinput_init);
+module_exit(uinput_exit);
+