media: lirc: remove LIRCCODE and LIRC_GET_LENGTH
LIRCCODE is a lirc mode where a driver produces driver-dependent codes for receive and transmit. No driver uses this any more. The LIRC_GET_LENGTH ioctl was used for this mode only. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>hifive-unleashed-5.1
Sean Young
Mauro Carvalho Chehab
parent
794348e883
commit
4e3cd001fd
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@ -28,6 +28,10 @@ ignore define LIRC_CAN_SEND_MASK
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ignore define LIRC_CAN_REC_MASK
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ignore define LIRC_CAN_SET_REC_DUTY_CYCLE
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# Obsolete ioctls
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ignore ioctl LIRC_GET_LENGTH
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# Undocumented macros
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ignore define PULSE_BIT
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@ -40,3 +44,4 @@ ignore define LIRC_VALUE_MASK
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ignore define LIRC_MODE2_MASK
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ignore define LIRC_MODE_RAW
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ignore define LIRC_MODE_LIRCCODE
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@ -72,21 +72,6 @@ on the following table.
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this packet will be sent, with the number of microseconds with
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no IR.
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.. _lirc-mode-lirccode:
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``LIRC_MODE_LIRCCODE``
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This mode can be used for IR receive and send.
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The IR signal is decoded internally by the receiver, or encoded by the
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transmitter. The LIRC interface represents the scancode as byte string,
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which might not be a u32, it can be any length. The value is entirely
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driver dependent. This mode is used by some older lirc drivers.
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The length of each code depends on the driver, which can be retrieved
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with :ref:`lirc_get_length`. This length is used both
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for transmitting and receiving IR.
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.. _lirc-mode-pulse:
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``LIRC_MODE_PULSE``
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@ -18,7 +18,6 @@ LIRC Function Reference
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lirc-set-send-duty-cycle
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lirc-get-timeout
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lirc-set-rec-timeout
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lirc-get-length
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lirc-set-rec-carrier
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lirc-set-rec-carrier-range
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lirc-set-send-carrier
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@ -62,8 +62,7 @@ LIRC features
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``LIRC_CAN_REC_LIRCCODE``
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The driver is capable of receiving using
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:ref:`LIRC_MODE_LIRCCODE <lirc-mode-LIRCCODE>`.
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Unused. Kept just to avoid breaking uAPI.
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.. _LIRC-CAN-SET-SEND-CARRIER:
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@ -170,9 +169,7 @@ LIRC features
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``LIRC_CAN_SEND_LIRCCODE``
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The driver supports sending (also called as IR blasting or IR TX) using
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:ref:`LIRC_MODE_LIRCCODE <lirc-mode-LIRCCODE>`.
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Unused. Kept just to avoid breaking uAPI.
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Return Value
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============
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@ -1,44 +0,0 @@
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.. -*- coding: utf-8; mode: rst -*-
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.. _lirc_get_length:
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*********************
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ioctl LIRC_GET_LENGTH
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*********************
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Name
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====
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LIRC_GET_LENGTH - Retrieves the code length in bits.
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Synopsis
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========
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.. c:function:: int ioctl( int fd, LIRC_GET_LENGTH, __u32 *length )
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:name: LIRC_GET_LENGTH
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Arguments
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=========
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``fd``
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File descriptor returned by open().
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``length``
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length, in bits
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Description
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===========
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Retrieves the code length in bits (only for
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:ref:`LIRC_MODE_LIRCCODE <lirc-mode-lirccode>`).
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Reads on the device must be done in blocks matching the bit count.
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The bit could should be rounded up so that it matches full bytes.
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Return Value
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============
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On success 0 is returned, on error -1 and the ``errno`` variable is set
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appropriately. The generic error codes are described at the
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:ref:`Generic Error Codes <gen-errors>` chapter.
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@ -34,9 +34,7 @@ Description
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===========
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Get/set supported receive modes. Only :ref:`LIRC_MODE_MODE2 <lirc-mode-mode2>`
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and :ref:`LIRC_MODE_LIRCCODE <lirc-mode-lirccode>` are supported for IR
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receive. Use :ref:`lirc_get_features` to find out which modes the driver
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supports.
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is supported for IR receive.
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Return Value
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============
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@ -36,8 +36,7 @@ Description
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Get/set current transmit mode.
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Only :ref:`LIRC_MODE_PULSE <lirc-mode-pulse>` and
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:ref:`LIRC_MODE_LIRCCODE <lirc-mode-lirccode>` is supported by for IR send,
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Only :ref:`LIRC_MODE_PULSE <lirc-mode-pulse>` is supported by for IR send,
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depending on the driver. Use :ref:`lirc_get_features` to find out which
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modes the driver supports.
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@ -388,7 +388,6 @@ static int ir_lirc_register(struct rc_dev *dev)
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ldev->features = features;
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ldev->data = &dev->raw->lirc;
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ldev->buf = NULL;
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ldev->code_length = sizeof(struct ir_raw_event) * 8;
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ldev->chunk_size = sizeof(int);
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ldev->buffer_size = LIRCBUF_SIZE;
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ldev->fops = &lirc_fops;
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@ -137,12 +137,6 @@ int lirc_register_device(struct lirc_dev *d)
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return -EINVAL;
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}
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if (d->code_length < 1 || d->code_length > (BUFLEN * 8)) {
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dev_err(&d->dev, "code length must be less than %d bits\n",
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BUFLEN * 8);
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return -EBADRQC;
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}
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if (!d->buf && !(d->fops && d->fops->read &&
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d->fops->poll && d->fops->unlocked_ioctl)) {
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dev_err(&d->dev, "undefined read, poll, ioctl\n");
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@ -152,9 +146,6 @@ int lirc_register_device(struct lirc_dev *d)
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/* some safety check 8-) */
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d->name[sizeof(d->name) - 1] = '\0';
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if (d->features == 0)
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d->features = LIRC_CAN_REC_LIRCCODE;
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if (LIRC_CAN_REC(d->features)) {
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err = lirc_allocate_buffer(d);
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if (err)
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@ -343,9 +334,6 @@ long lirc_dev_fop_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
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* for now, lirc_serial doesn't support mode changing either
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*/
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break;
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case LIRC_GET_LENGTH:
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result = put_user(d->code_length, (__u32 __user *)arg);
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break;
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default:
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result = -ENOTTY;
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}
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@ -9,8 +9,6 @@
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#ifndef _LINUX_LIRC_DEV_H
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#define _LINUX_LIRC_DEV_H
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#define BUFLEN 16
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#include <linux/slab.h>
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#include <linux/fs.h>
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#include <linux/ioctl.h>
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@ -117,7 +115,6 @@ static inline unsigned int lirc_buffer_write(struct lirc_buffer *buf,
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*
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* @name: used for logging
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* @minor: the minor device (/dev/lircX) number for the device
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* @code_length: length of a remote control key code expressed in bits
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* @features: lirc compatible hardware features, like LIRC_MODE_RAW,
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* LIRC_CAN\_\*, as defined at include/media/lirc.h.
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* @buffer_size: Number of FIFO buffers with @chunk_size size.
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@ -142,7 +139,6 @@ static inline unsigned int lirc_buffer_write(struct lirc_buffer *buf,
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struct lirc_dev {
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char name[40];
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unsigned int minor;
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__u32 code_length;
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__u32 features;
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unsigned int buffer_size; /* in chunks holding one code each */
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