diff options
Diffstat (limited to 'drivers/input/misc')
| -rw-r--r-- | drivers/input/misc/Kconfig | 60 | ||||
| -rw-r--r-- | drivers/input/misc/Makefile | 12 | ||||
| -rw-r--r-- | drivers/input/misc/hp_sdc_rtc.c | 724 | ||||
| -rw-r--r-- | drivers/input/misc/m68kspkr.c | 83 | ||||
| -rw-r--r-- | drivers/input/misc/pcspkr.c | 97 | ||||
| -rw-r--r-- | drivers/input/misc/sparcspkr.c | 189 | ||||
| -rw-r--r-- | drivers/input/misc/uinput.c | 620 |
7 files changed, 1785 insertions, 0 deletions
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig new file mode 100644 index 00000000000..bb934e6d963 --- /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 00000000000..f8d01c69f34 --- /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 00000000000..1cd7657f7e4 --- /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 00000000000..64abdd98d48 --- /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 00000000000..3013194f462 --- /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 00000000000..cdc3fb3d5f4 --- /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 00000000000..158c8e845ff --- /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); + |