diff options
Diffstat (limited to 'drivers/sgi/char/streamable.c')
| -rw-r--r-- | drivers/sgi/char/streamable.c | 177 |
1 files changed, 160 insertions, 17 deletions
diff --git a/drivers/sgi/char/streamable.c b/drivers/sgi/char/streamable.c index d2a20651d..f26aad0e2 100644 --- a/drivers/sgi/char/streamable.c +++ b/drivers/sgi/char/streamable.c @@ -47,6 +47,7 @@ get_sioc (struct strioctl *sioc, unsigned long arg) return 0; } +/* /dev/gfx device */ static int sgi_gfx_open (struct inode *inode, struct file *file) { @@ -65,9 +66,31 @@ static int sgi_gfx_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { printk ("GFX: ioctl 0x%x %ld called\n", cmd, arg); + return 0; return -EINVAL; } +struct file_operations sgi_gfx_fops = { + NULL, /* llseek */ + NULL, /* read */ + NULL, /* write */ + NULL, /* readdir */ + NULL, /* poll */ + sgi_gfx_ioctl, /* ioctl */ + NULL, /* mmap */ + sgi_gfx_open, /* open */ + sgi_gfx_close, /* release */ + NULL, /* fsync */ + NULL, /* check_media_change */ + NULL, /* revalidate */ + NULL /* lock */ +}; + +static struct miscdevice dev_gfx = { + SGI_GFX_MINOR, "sgi-gfx", &sgi_gfx_fops +}; + +/* /dev/input/keyboard streams device */ static idevDesc sgi_kbd_desc = { "keyboard", /* devName */ "KEYBOARD", /* devType */ @@ -160,53 +183,172 @@ kbd_forward_char (int ch) shmiq_push_event (&ev); } -struct file_operations sgi_gfx_fops = { +static int +sgi_keyb_open (struct inode *inode, struct file *file) +{ + /* Nothing, but required by the misc driver */ + return 0; +} + +struct file_operations sgi_keyb_fops = { NULL, /* llseek */ NULL, /* read */ NULL, /* write */ NULL, /* readdir */ NULL, /* poll */ - sgi_gfx_ioctl, /* ioctl */ + sgi_keyb_ioctl, /* ioctl */ NULL, /* mmap */ - sgi_gfx_open, /* open */ - sgi_gfx_close, /* release */ + sgi_keyb_open, /* open */ + NULL, /* release */ NULL, /* fsync */ NULL, /* check_media_change */ NULL, /* revalidate */ NULL /* lock */ }; - -/* /dev/gfx */ -static struct miscdevice dev_gfx = { - SGI_GFX_MINOR, "sgi-gfx", &sgi_gfx_fops + +static struct miscdevice dev_input_keyboard = { + SGI_STREAMS_KEYBOARD, "streams-keyboard", &sgi_keyb_fops }; +/* /dev/input/mouse streams device */ +#define MOUSE_VALUATORS 2 +static idevDesc sgi_mouse_desc = { + "mouse", /* devName */ + "MOUSE", /* devType */ + 3, /* nButtons */ + MOUSE_VALUATORS, /* nValuators */ + 0, /* nLEDs */ + 0, /* nStrDpys */ + 0, /* nIntDpys */ + 0, /* nBells */ + 0 /* flags */ +}; + +static idevValuatorDesc mouse_default_valuator = { + 200, /* hwMinRes */ + 200, /* hwMaxRes */ + 0, /* hwMinVal */ + 65000, /* hwMaxVal */ + IDEV_EITHER, /* possibleModes */ + IDEV_ABSOLUTE, /* default mode */ + 200, /* resolution */ + 0, /* minVal */ + 65000 /* maxVal */ +}; + +static int mouse_opened; +static idevValuatorDesc mouse_valuators [MOUSE_VALUATORS]; + +int +sgi_mouse_open (struct inode *inode, struct file *file) +{ + int i; + + if (mouse_opened) + return -EBUSY; + + mouse_opened = 1; + for (i = 0; i < MOUSE_VALUATORS; i++) + mouse_valuators [i] = mouse_default_valuator; + return 0; +} + static int -sgi_keyb_open (struct inode *inode, struct file *file) +sgi_mouse_close (struct inode *inode, struct file *filp) { - /* Nothing, but required by the misc driver */ + mouse_opened = 0; return 0; } -struct file_operations sgi_keyb_fops = { +static int +sgi_mouse_sioc (idevInfo *dinfo, int cmd, int size, char *data, int *found) +{ + *found = 1; + + switch (cmd){ + case IDEVINITDEVICE: + return 0; + + case IDEVGETDEVICEDESC: + if (size >= sizeof (idevDesc)){ + if (copy_to_user (data, &sgi_mouse_desc, sizeof (sgi_mouse_desc))) + return -EFAULT; + return 0; + } + return -EINVAL; + + case IDEVGETVALUATORDESC: { + idevGetSetValDesc request, *ureq = (idevGetSetValDesc *) data; + + if (size < sizeof (idevGetSetValDesc)) + return -EINVAL; + + if (copy_from_user (&request, data, sizeof (request))) + return -EFAULT; + if (request.valNum >= MOUSE_VALUATORS) + return -EINVAL; + if (copy_to_user ((void *)&ureq->desc, + (void *)&mouse_valuators [request.valNum], + sizeof (idevValuatorDesc))) + return -EFAULT; + return 0; + } + } + *found = 0; + return -EINVAL; +} + +static int +sgi_mouse_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +{ + struct strioctl sioc; + int f, v; + + /* IRIX calls I_PUSH on the opened device, go figure */ + switch (cmd){ + case I_PUSH: + return 0; + + case I_STR: + v = get_sioc (&sioc, arg); + if (v) + return v; + + /* Why like this? Because this is a sample piece of code + * that can be copied into other drivers and shows how to + * call a stock IRIX xxx_wioctl routine + * + * The NULL is supposed to be a idevInfo, right now we + * do not support this in our kernel. + */ + return sgi_mouse_sioc (NULL, sioc.ic_cmd, sioc.ic_len, sioc.ic_dp, &f); + + case SHMIQ_ON: + case SHMIQ_OFF: + return 0; + } + return 0; +} + +struct file_operations sgi_mouse_fops = { NULL, /* llseek */ NULL, /* read */ NULL, /* write */ NULL, /* readdir */ NULL, /* poll */ - sgi_keyb_ioctl, /* ioctl */ + sgi_mouse_ioctl, /* ioctl */ NULL, /* mmap */ - sgi_keyb_open, /* open */ - NULL, /* release */ + sgi_mouse_open, /* open */ + sgi_mouse_close, /* release */ NULL, /* fsync */ NULL, /* check_media_change */ NULL, /* revalidate */ NULL /* lock */ }; -/* /dev/input/keyboard */ -static struct miscdevice dev_input_keyboard = { - SGI_STREAMS_KEYBOARD, "streams-keyboard", &sgi_keyb_fops +/* /dev/input/mouse */ +static struct miscdevice dev_input_mouse = { + SGI_STREAMS_KEYBOARD, "streams-mouse", &sgi_mouse_fops }; void @@ -217,4 +359,5 @@ streamable_init (void) misc_register (&dev_gfx); misc_register (&dev_input_keyboard); + misc_register (&dev_input_mouse); } |