diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-05 17:34:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-05 17:34:57 -0700 |
| commit | e87d51ac61f88ae44fe14b34abe08566032d726b (patch) | |
| tree | fc418d2e29fbf8a06f1ed0b6eaff8ba03e0543d7 /drivers/staging | |
| parent | bdc713bf5674bc6a881bd05c85e2a0f811b409b3 (diff) | |
| parent | 3622d3e77ecef090b5111e3c5423313f11711dfa (diff) | |
Merge tag 'media/v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
"Media updates for v4.12-rc1:
- new driver to support mediatek jpeg in hardware codec
- rc-lirc, s5p-cec and st-cec staging drivers got promoted
- hardware histogram support for vsp1 driver
- added Virtual Media Controller driver, to make easier to test the
media controller
- added a new CEC driver (rainshadow-cec)
- removed two staging LIRC drivers for obscure hardware that are too
obsolete
- added support for Intel SR300 Depth camera
- some improvements at CEC and RC core
- lots of driver cleanups, improvements all over the tree
With this series, we're finally getting rid of the LIRC staging
driver. There's just one left (lirc_zilog), with require more care,
as part of its functionality (IR RX) is already provided by another
driver. Work in progress to convert it on the proper way"
* tag 'media/v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (304 commits)
[media] ov2640: print error if devm_*_optional*() fails
[media] atmel-isc: Fix the static checker warning
[media] ov2640: add support for MEDIA_BUS_FMT_YVYU8_2X8 and MEDIA_BUS_FMT_VYUY8_2X8
[media] ov2640: fix vflip control
[media] ov2640: fix duplicate width+height returning from ov2640_select_win()
[media] ov2640: add missing write to size change preamble
[media] ov2640: add information about DSP register 0xc7
[media] ov2640: improve banding filter register definitions/documentation
[media] ov2640: fix init sequence alignment
[media] ov2640: make GPIOLIB an optional dependency
[media] xc5000: fix spelling mistake: "calibration"
[media] vidioc-queryctrl.rst: fix menu/int menu references
[media] media-entity: only call dev_dbg_obj if mdev is not NULL
[media] pixfmt-meta-vsp1-hgo.rst: remove spurious '-'
[media] mtk-vcodec: avoid warnings because of empty macros
[media] coda: bump maximum number of internal framebuffers to 17
[media] media: mtk-vcodec: remove informative log
[media] subdev-formats.rst: remove spurious '-'
[media] dw2102: limit messages to buffer size
[media] ttusb2: limit messages to buffer size
...
Diffstat (limited to 'drivers/staging')
25 files changed, 54 insertions, 2900 deletions
diff --git a/drivers/staging/media/Kconfig b/drivers/staging/media/Kconfig index abd0e2d57c20..8ed8202da57a 100644 --- a/drivers/staging/media/Kconfig +++ b/drivers/staging/media/Kconfig @@ -29,11 +29,7 @@ source "drivers/staging/media/omap4iss/Kconfig" source "drivers/staging/media/platform/bcm2835/Kconfig" -source "drivers/staging/media/s5p-cec/Kconfig" - # Keep LIRC at the end, as it has sub-menus source "drivers/staging/media/lirc/Kconfig" -source "drivers/staging/media/st-cec/Kconfig" - endif diff --git a/drivers/staging/media/Makefile b/drivers/staging/media/Makefile index dc89325c463d..3a6adeabede1 100644 --- a/drivers/staging/media/Makefile +++ b/drivers/staging/media/Makefile @@ -1,8 +1,6 @@ obj-$(CONFIG_I2C_BCM2048) += bcm2048/ -obj-$(CONFIG_VIDEO_SAMSUNG_S5P_CEC) += s5p-cec/ obj-$(CONFIG_DVB_CXD2099) += cxd2099/ obj-$(CONFIG_LIRC_STAGING) += lirc/ obj-$(CONFIG_VIDEO_BCM2835) += platform/bcm2835/ obj-$(CONFIG_VIDEO_DM365_VPFE) += davinci_vpfe/ obj-$(CONFIG_VIDEO_OMAP4) += omap4iss/ -obj-$(CONFIG_VIDEO_STI_HDMI_CEC) += st-cec/ diff --git a/drivers/staging/media/bcm2048/radio-bcm2048.c b/drivers/staging/media/bcm2048/radio-bcm2048.c index d605c41d0424..38f72d069e27 100644 --- a/drivers/staging/media/bcm2048/radio-bcm2048.c +++ b/drivers/staging/media/bcm2048/radio-bcm2048.c @@ -177,12 +177,12 @@ #define BCM2048_FREQDEV_UNIT 10000 #define BCM2048_FREQV4L2_MULTI 625 -#define dev_to_v4l2(f) ((f * BCM2048_FREQDEV_UNIT) / BCM2048_FREQV4L2_MULTI) -#define v4l2_to_dev(f) ((f * BCM2048_FREQV4L2_MULTI) / BCM2048_FREQDEV_UNIT) +#define dev_to_v4l2(f) (((f) * BCM2048_FREQDEV_UNIT) / BCM2048_FREQV4L2_MULTI) +#define v4l2_to_dev(f) (((f) * BCM2048_FREQV4L2_MULTI) / BCM2048_FREQDEV_UNIT) -#define msb(x) ((u8)((u16)x >> 8)) -#define lsb(x) ((u8)((u16)x & 0x00FF)) -#define compose_u16(msb, lsb) (((u16)msb << 8) | lsb) +#define msb(x) ((u8)((u16)(x) >> 8)) +#define lsb(x) ((u8)((u16)(x) & 0x00FF)) +#define compose_u16(msb, lsb) (((u16)(msb) << 8) | (lsb)) #define BCM2048_DEFAULT_POWERING_DELAY 20 #define BCM2048_DEFAULT_REGION 0x02 @@ -1534,7 +1534,11 @@ static int bcm2048_parse_rt_match_c(struct bcm2048_device *bdev, int i, if (crc == BCM2048_RDS_CRC_UNRECOVARABLE) return 0; - BUG_ON((index+2) >= BCM2048_MAX_RDS_RT); + if ((index + 2) >= BCM2048_MAX_RDS_RT) { + dev_err(&bdev->client->dev, + "Incorrect index = %d\n", index); + return 0; + } if ((bdev->rds_info.radio_text[i] & BCM2048_RDS_BLOCK_MASK) == BCM2048_RDS_BLOCK_C) { @@ -1557,7 +1561,11 @@ static void bcm2048_parse_rt_match_d(struct bcm2048_device *bdev, int i, if (crc == BCM2048_RDS_CRC_UNRECOVARABLE) return; - BUG_ON((index+4) >= BCM2048_MAX_RDS_RT); + if ((index + 4) >= BCM2048_MAX_RDS_RT) { + dev_err(&bdev->client->dev, + "Incorrect index = %d\n", index); + return; + } if ((bdev->rds_info.radio_text[i] & BCM2048_RDS_BLOCK_MASK) == BCM2048_RDS_BLOCK_D) @@ -2008,7 +2016,7 @@ static ssize_t bcm2048_##prop##_read(struct device *dev, \ if (!bdev) \ return -ENODEV; \ \ - out = kzalloc(size + 1, GFP_KERNEL); \ + out = kzalloc((size) + 1, GFP_KERNEL); \ if (!out) \ return -ENOMEM; \ \ @@ -2634,7 +2642,7 @@ exit: return err; } -static int __exit bcm2048_i2c_driver_remove(struct i2c_client *client) +static int bcm2048_i2c_driver_remove(struct i2c_client *client) { struct bcm2048_device *bdev = i2c_get_clientdata(client); @@ -2673,7 +2681,7 @@ static struct i2c_driver bcm2048_i2c_driver = { .name = BCM2048_DRIVER_NAME, }, .probe = bcm2048_i2c_driver_probe, - .remove = __exit_p(bcm2048_i2c_driver_remove), + .remove = bcm2048_i2c_driver_remove, .id_table = bcm2048_id, }; diff --git a/drivers/staging/media/lirc/Kconfig b/drivers/staging/media/lirc/Kconfig index bc67da254262..3e350a9922de 100644 --- a/drivers/staging/media/lirc/Kconfig +++ b/drivers/staging/media/lirc/Kconfig @@ -12,18 +12,6 @@ menuconfig LIRC_STAGING if LIRC_STAGING -config LIRC_SASEM - tristate "Sasem USB IR Remote" - depends on LIRC && USB - help - Driver for the Sasem OnAir Remocon-V or Dign HV5 HTPC IR/VFD Module - -config LIRC_SIR - tristate "Built-in SIR IrDA port" - depends on RC_CORE - help - Driver for the SIR IrDA port - config LIRC_ZILOG tristate "Zilog/Hauppauge IR Transmitter" depends on LIRC && I2C diff --git a/drivers/staging/media/lirc/Makefile b/drivers/staging/media/lirc/Makefile index 28740c94349c..665562436e30 100644 --- a/drivers/staging/media/lirc/Makefile +++ b/drivers/staging/media/lirc/Makefile @@ -3,6 +3,4 @@ # Each configuration option enables a list of files. -obj-$(CONFIG_LIRC_SASEM) += lirc_sasem.o -obj-$(CONFIG_LIRC_SIR) += lirc_sir.o obj-$(CONFIG_LIRC_ZILOG) += lirc_zilog.o diff --git a/drivers/staging/media/lirc/lirc_sasem.c b/drivers/staging/media/lirc/lirc_sasem.c deleted file mode 100644 index b0c176e14b6b..000000000000 --- a/drivers/staging/media/lirc/lirc_sasem.c +++ /dev/null @@ -1,899 +0,0 @@ -/* - * lirc_sasem.c - USB remote support for LIRC - * Version 0.5 - * - * Copyright (C) 2004-2005 Oliver Stabel <oliver.stabel@gmx.de> - * Tim Davies <tim@opensystems.net.au> - * - * This driver was derived from: - * Venky Raju <dev@venky.ws> - * "lirc_imon - "LIRC/VFD driver for Ahanix/Soundgraph IMON IR/VFD" - * Paul Miller <pmiller9@users.sourceforge.net>'s 2003-2004 - * "lirc_atiusb - USB remote support for LIRC" - * Culver Consulting Services <henry@culcon.com>'s 2003 - * "Sasem OnAir VFD/IR USB driver" - * - * - * NOTE - The LCDproc iMon driver should work with this module. More info at - * http://www.frogstorm.info/sasem - */ - -/* - * 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 - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/uaccess.h> -#include <linux/usb.h> -#include <linux/ktime.h> - -#include <media/lirc.h> -#include <media/lirc_dev.h> - -#define MOD_AUTHOR "Oliver Stabel <oliver.stabel@gmx.de>, " \ - "Tim Davies <tim@opensystems.net.au>" -#define MOD_DESC "USB Driver for Sasem Remote Controller V1.1" -#define MOD_NAME "lirc_sasem" -#define MOD_VERSION "0.5" - -#define VFD_MINOR_BASE 144 /* Same as LCD */ -#define DEVICE_NAME "lcd%d" - -#define BUF_CHUNK_SIZE 8 -#define BUF_SIZE 128 - -#define IOCTL_LCD_CONTRAST 1 - -/*** P R O T O T Y P E S ***/ - -/* USB Callback prototypes */ -static int sasem_probe(struct usb_interface *interface, - const struct usb_device_id *id); -static void sasem_disconnect(struct usb_interface *interface); -static void usb_rx_callback(struct urb *urb); -static void usb_tx_callback(struct urb *urb); - -/* VFD file_operations function prototypes */ -static int vfd_open(struct inode *inode, struct file *file); -static long vfd_ioctl(struct file *file, unsigned int cmd, unsigned long arg); -static int vfd_close(struct inode *inode, struct file *file); -static ssize_t vfd_write(struct file *file, const char __user *buf, - size_t n_bytes, loff_t *pos); - -/* LIRC driver function prototypes */ -static int ir_open(void *data); -static void ir_close(void *data); - -/*** G L O B A L S ***/ -#define SASEM_DATA_BUF_SZ 32 - -struct sasem_context { - struct usb_device *dev; - int vfd_isopen; /* VFD port has been opened */ - unsigned int vfd_contrast; /* VFD contrast */ - int ir_isopen; /* IR port has been opened */ - int dev_present; /* USB device presence */ - struct mutex ctx_lock; /* to lock this object */ - wait_queue_head_t remove_ok; /* For unexpected USB disconnects */ - - struct lirc_driver *driver; - struct usb_endpoint_descriptor *rx_endpoint; - struct usb_endpoint_descriptor *tx_endpoint; - struct urb *rx_urb; - struct urb *tx_urb; - unsigned char usb_rx_buf[8]; - unsigned char usb_tx_buf[8]; - - struct tx_t { - unsigned char data_buf[SASEM_DATA_BUF_SZ]; /* user data - * buffer - */ - struct completion finished; /* wait for write to finish */ - atomic_t busy; /* write in progress */ - int status; /* status of tx completion */ - } tx; - - /* for dealing with repeat codes (wish there was a toggle bit!) */ - ktime_t presstime; - char lastcode[8]; - int codesaved; -}; - -/* VFD file operations */ -static const struct file_operations vfd_fops = { - .owner = THIS_MODULE, - .open = &vfd_open, - .write = vfd_write, - .unlocked_ioctl = &vfd_ioctl, - .release = &vfd_close, - .llseek = noop_llseek, -}; - -/* USB Device ID for Sasem USB Control Board */ -static struct usb_device_id sasem_usb_id_table[] = { - /* Sasem USB Control Board */ - { USB_DEVICE(0x11ba, 0x0101) }, - /* Terminating entry */ - {} -}; - -/* USB Device data */ -static struct usb_driver sasem_driver = { - .name = MOD_NAME, - .probe = sasem_probe, - .disconnect = sasem_disconnect, - .id_table = sasem_usb_id_table, -}; - -static struct usb_class_driver sasem_class = { - .name = DEVICE_NAME, - .fops = &vfd_fops, - .minor_base = VFD_MINOR_BASE, -}; - -/* to prevent races between open() and disconnect() */ -static DEFINE_MUTEX(disconnect_lock); - -static int debug; - - -/*** M O D U L E C O D E ***/ -MODULE_AUTHOR(MOD_AUTHOR); -MODULE_DESCRIPTION(MOD_DESC); -MODULE_LICENSE("GPL"); -module_param(debug, int, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(debug, "Debug messages: 0=no, 1=yes (default: no)"); - -static void delete_context(struct sasem_context *context) -{ - usb_free_urb(context->tx_urb); /* VFD */ - usb_free_urb(context->rx_urb); /* IR */ - lirc_buffer_free(context->driver->rbuf); - kfree(context->driver->rbuf); - kfree(context->driver); - kfree(context); -} - -static void deregister_from_lirc(struct sasem_context *context) -{ - int retval; - int minor = context->driver->minor; - - retval = lirc_unregister_driver(minor); - if (retval) - dev_err(&context->dev->dev, - "%s: unable to deregister from lirc (%d)\n", - __func__, retval); - else - dev_info(&context->dev->dev, - "Deregistered Sasem driver (minor:%d)\n", minor); -} - -/** - * Called when the VFD device (e.g. /dev/usb/lcd) - * is opened by the application. - */ -static int vfd_open(struct inode *inode, struct file *file) -{ - struct usb_interface *interface; - struct sasem_context *context = NULL; - int subminor; - int retval = 0; - - /* prevent races with disconnect */ - mutex_lock(&disconnect_lock); - - subminor = iminor(inode); - interface = usb_find_interface(&sasem_driver, subminor); - if (!interface) { - pr_err("%s: could not find interface for minor %d\n", - __func__, subminor); - retval = -ENODEV; - goto exit; - } - context = usb_get_intfdata(interface); - - if (!context) { - dev_err(&interface->dev, "no context found for minor %d\n", - subminor); - retval = -ENODEV; - goto exit; - } - - mutex_lock(&context->ctx_lock); - - if (context->vfd_isopen) { - dev_err(&interface->dev, - "%s: VFD port is already open", __func__); - retval = -EBUSY; - } else { - context->vfd_isopen = 1; - file->private_data = context; - dev_info(&interface->dev, "VFD port opened\n"); - } - - mutex_unlock(&context->ctx_lock); - -exit: - mutex_unlock(&disconnect_lock); - return retval; -} - -/** - * Called when the VFD device (e.g. /dev/usb/lcd) - * is closed by the application. - */ -static long vfd_ioctl(struct file *file, unsigned int cmd, unsigned long arg) -{ - struct sasem_context *context; - - context = (struct sasem_context *) file->private_data; - - if (!context) { - pr_err("%s: no context for device\n", __func__); - return -ENODEV; - } - - mutex_lock(&context->ctx_lock); - - switch (cmd) { - case IOCTL_LCD_CONTRAST: - if (arg > 1000) - arg = 1000; - context->vfd_contrast = (unsigned int)arg; - break; - default: - pr_info("Unknown IOCTL command\n"); - mutex_unlock(&context->ctx_lock); - return -ENOIOCTLCMD; /* not supported */ - } - - mutex_unlock(&context->ctx_lock); - return 0; -} - -/** - * Called when the VFD device (e.g. /dev/usb/lcd) - * is closed by the application. - */ -static int vfd_close(struct inode *inode, struct file *file) -{ - struct sasem_context *context = NULL; - int retval = 0; - - context = (struct sasem_context *) file->private_data; - - if (!context) { - pr_err("%s: no context for device\n", __func__); - return -ENODEV; - } - - mutex_lock(&context->ctx_lock); - - if (!context->vfd_isopen) { - dev_err(&context->dev->dev, "%s: VFD is not open\n", __func__); - retval = -EIO; - } else { - context->vfd_isopen = 0; - dev_info(&context->dev->dev, "VFD port closed\n"); - if (!context->dev_present && !context->ir_isopen) { - /* Device disconnected before close and IR port is - * not open. If IR port is open, context will be - * deleted by ir_close. - */ - mutex_unlock(&context->ctx_lock); - delete_context(context); - return retval; - } - } - - mutex_unlock(&context->ctx_lock); - return retval; -} - -/** - * Sends a packet to the VFD. - */ -static int send_packet(struct sasem_context *context) -{ - unsigned int pipe; - int interval = 0; - int retval = 0; - - pipe = usb_sndintpipe(context->dev, - context->tx_endpoint->bEndpointAddress); - interval = context->tx_endpoint->bInterval; - - usb_fill_int_urb(context->tx_urb, context->dev, pipe, - context->usb_tx_buf, sizeof(context->usb_tx_buf), - usb_tx_callback, context, interval); - - context->tx_urb->actual_length = 0; - - init_completion(&context->tx.finished); - atomic_set(&context->tx.busy, 1); - - retval = usb_submit_urb(context->tx_urb, GFP_KERNEL); - if (retval) { - atomic_set(&context->tx.busy, 0); - dev_err(&context->dev->dev, "error submitting urb (%d)\n", - retval); - } else { - /* Wait for transmission to complete (or abort) */ - mutex_unlock(&context->ctx_lock); - wait_for_completion(&context->tx.finished); - mutex_lock(&context->ctx_lock); - - retval = context->tx.status; - if (retval) - dev_err(&context->dev->dev, - "packet tx failed (%d)\n", retval); - } - - return retval; -} - -/** - * Writes data to the VFD. The Sasem VFD is 2x16 characters - * and requires data in 9 consecutive USB interrupt packets, - * each packet carrying 8 bytes. - */ -static ssize_t vfd_write(struct file *file, const char __user *buf, - size_t n_bytes, loff_t *pos) -{ - int i; - int retval = 0; - struct sasem_context *context; - int *data_buf = NULL; - - context = (struct sasem_context *) file->private_data; - if (!context) { - pr_err("%s: no context for device\n", __func__); - return -ENODEV; - } - - mutex_lock(&context->ctx_lock); - - if (!context->dev_present) { - pr_err("%s: no Sasem device present\n", __func__); - retval = -ENODEV; - goto exit; - } - - if (n_bytes <= 0 || n_bytes > SASEM_DATA_BUF_SZ) { - dev_err(&context->dev->dev, "%s: invalid payload size\n", - __func__); - retval = -EINVAL; - goto exit; - } - - data_buf = memdup_user(buf, n_bytes); - if (IS_ERR(data_buf)) { - mutex_unlock(&context->ctx_lock); - return PTR_ERR(data_buf); - } - - memcpy(context->tx.data_buf, data_buf, n_bytes); - - /* Pad with spaces */ - for (i = n_bytes; i < SASEM_DATA_BUF_SZ; ++i) - context->tx.data_buf[i] = ' '; - - /* Nine 8 byte packets to be sent */ - /* NOTE: "\x07\x01\0\0\0\0\0\0" or "\x0c\0\0\0\0\0\0\0" - * will clear the VFD - */ - for (i = 0; i < 9; i++) { - switch (i) { - case 0: - memcpy(context->usb_tx_buf, "\x07\0\0\0\0\0\0\0", 8); - context->usb_tx_buf[1] = (context->vfd_contrast) ? - (0x2B - (context->vfd_contrast - 1) / 250) - : 0x2B; - break; - case 1: - memcpy(context->usb_tx_buf, "\x09\x01\0\0\0\0\0\0", 8); - break; - case 2: - memcpy(context->usb_tx_buf, "\x0b\x01\0\0\0\0\0\0", 8); - break; - case 3: - memcpy(context->usb_tx_buf, context->tx.data_buf, 8); - break; - case 4: - memcpy(context->usb_tx_buf, - context->tx.data_buf + 8, 8); - break; - case 5: - memcpy(context->usb_tx_buf, "\x09\x01\0\0\0\0\0\0", 8); - break; - case 6: - memcpy(context->usb_tx_buf, "\x0b\x02\0\0\0\0\0\0", 8); - break; - case 7: - memcpy(context->usb_tx_buf, - context->tx.data_buf + 16, 8); - break; - case 8: - memcpy(context->usb_tx_buf, - context->tx.data_buf + 24, 8); - break; - } - retval = send_packet(context); - if (retval) { - dev_err(&context->dev->dev, - "send packet failed for packet #%d\n", i); - goto exit; - } - } -exit: - - mutex_unlock(&context->ctx_lock); - kfree(data_buf); - - return (!retval) ? n_bytes : retval; -} - -/** - * Callback function for USB core API: transmit data - */ -static void usb_tx_callback(struct urb *urb) -{ - struct sasem_context *context; - - if (!urb) - return; - context = (struct sasem_context *) urb->context; - if (!context) - return; - - context->tx.status = urb->status; - - /* notify waiters that write has finished */ - atomic_set(&context->tx.busy, 0); - complete(&context->tx.finished); -} - -/** - * Called by lirc_dev when the application opens /dev/lirc - */ -static int ir_open(void *data) -{ - int retval = 0; - struct sasem_context *context; - - /* prevent races with disconnect */ - mutex_lock(&disconnect_lock); - - context = data; - - mutex_lock(&context->ctx_lock); - - if (context->ir_isopen) { - dev_err(&context->dev->dev, "%s: IR port is already open\n", - __func__); - retval = -EBUSY; - goto exit; - } - - usb_fill_int_urb(context->rx_urb, context->dev, - usb_rcvintpipe(context->dev, - context->rx_endpoint->bEndpointAddress), - context->usb_rx_buf, sizeof(context->usb_rx_buf), - usb_rx_callback, context, context->rx_endpoint->bInterval); - - retval = usb_submit_urb(context->rx_urb, GFP_KERNEL); - - if (retval) - dev_err(&context->dev->dev, - "usb_submit_urb failed for ir_open (%d)\n", retval); - else { - context->ir_isopen = 1; - dev_info(&context->dev->dev, "IR port opened\n"); - } - -exit: - mutex_unlock(&context->ctx_lock); - - mutex_unlock(&disconnect_lock); - return retval; -} - -/** - * Called by lirc_dev when the application closes /dev/lirc - */ -static void ir_close(void *data) -{ - struct sasem_context *context; - - context = data; - if (!context) { - pr_err("%s: no context for device\n", __func__); - return; - } - - mutex_lock(&context->ctx_lock); - - usb_kill_urb(context->rx_urb); - context->ir_isopen = 0; - pr_info("IR port closed\n"); - - if (!context->dev_present) { - - /* - * Device disconnected while IR port was - * still open. Driver was not deregistered - * at disconnect time, so do it now. - */ - deregister_from_lirc(context); - if (!context->vfd_isopen) { - mutex_unlock(&context->ctx_lock); - delete_context(context); - return; - } - /* If VFD port is open, context will be deleted by vfd_close */ - } - - mutex_unlock(&context->ctx_lock); -} - -/** - * Process the incoming packet - */ -static void incoming_packet(struct sasem_context *context, - struct urb *urb) -{ - int len = urb->actual_length; - unsigned char *buf = urb->transfer_buffer; - u64 ns; - ktime_t kt; - - if (len != 8) { - dev_warn(&context->dev->dev, - "%s: invalid incoming packet size (%d)\n", - __func__, len); - return; - } - - if (debug) - dev_info(&context->dev->dev, "Incoming data: %*ph\n", len, buf); - /* - * Lirc could deal with the repeat code, but we really need to block it - * if it arrives too late. Otherwise we could repeat the wrong code. - */ - - /* get the time since the last button press */ - kt = ktime_get(); - ns = ktime_to_ns(ktime_sub(kt, context->presstime)); - - if (memcmp(buf, "\x08\0\0\0\0\0\0\0", 8) == 0) { - /* - * the repeat code is being sent, so we copy - * the old code to LIRC - */ - - /* - * NOTE: Only if the last code was less than 250ms ago - * - no one should be able to push another (undetected) button - * in that time and then get a false repeat of the previous - * press but it is long enough for a genuine repeat - */ - if ((ns < 250 * NSEC_PER_MSEC) && (context->codesaved != 0)) { - memcpy(buf, &context->lastcode, 8); - context->presstime = kt; - } - } else { - /* save the current valid code for repeats */ - memcpy(&context->lastcode, buf, 8); - /* - * set flag to signal a valid code was save; - * just for safety reasons - */ - context->codesaved = 1; - context->presstime = kt; - } - - lirc_buffer_write(context->driver->rbuf, buf); - wake_up(&context->driver->rbuf->wait_poll); -} - -/** - * Callback function for USB core API: receive data - */ -static void usb_rx_callback(struct urb *urb) -{ - struct sasem_context *context; - - if (!urb) - return; - context = (struct sasem_context *) urb->context; - if (!context) - return; - - switch (urb->status) { - case -ENOENT: /* usbcore unlink successful! */ - return; - - case 0: - if (context->ir_isopen) - incoming_packet(context, urb); - break; - - default: - dev_warn(&urb->dev->dev, "%s: status (%d): ignored", - __func__, urb->status); - break; - } - - usb_submit_urb(context->rx_urb, GFP_ATOMIC); -} - -/** - * Callback function for USB core API: Probe - */ -static int sasem_probe(struct usb_interface *interface, - const struct usb_device_id *id) -{ - struct usb_device *dev = NULL; - struct usb_host_interface *iface_desc = NULL; - struct usb_endpoint_descriptor *rx_endpoint = NULL; - struct usb_endpoint_descriptor *tx_endpoint = NULL; - struct urb *rx_urb = NULL; - struct urb *tx_urb = NULL; - struct lirc_driver *driver = NULL; - struct lirc_buffer *rbuf = NULL; - int lirc_minor = 0; - int num_endpoints; - int retval = 0; - int vfd_ep_found; - int ir_ep_found; - int alloc_status; - struct sasem_context *context = NULL; - int i; - - dev_info(&interface->dev, "%s: found Sasem device\n", __func__); - - - dev = usb_get_dev(interface_to_usbdev(interface)); - iface_desc = interface->cur_altsetting; - num_endpoints = iface_desc->desc.bNumEndpoints; - - /* - * Scan the endpoint list and set: - * first input endpoint = IR endpoint - * first output endpoint = VFD endpoint - */ - - ir_ep_found = 0; - vfd_ep_found = 0; - - for (i = 0; i < num_endpoints && !(ir_ep_found && vfd_ep_found); ++i) { - - struct usb_endpoint_descriptor *ep; - - ep = &iface_desc->endpoint [i].desc; - - if (!ir_ep_found && - usb_endpoint_is_int_in(ep)) { - - rx_endpoint = ep; - ir_ep_found = 1; - if (debug) - dev_info(&interface->dev, - "%s: found IR endpoint\n", __func__); - - } else if (!vfd_ep_found && - usb_endpoint_is_int_out(ep)) { - tx_endpoint = ep; - vfd_ep_found = 1; - if (debug) - dev_info(&interface->dev, - "%s: found VFD endpoint\n", __func__); - } - } - - /* Input endpoint is mandatory */ - if (!ir_ep_found) { - dev_err(&interface->dev, - "%s: no valid input (IR) endpoint found.\n", __func__); - retval = -ENODEV; - goto exit; - } - - if (!vfd_ep_found) - dev_info(&interface->dev, - "%s: no valid output (VFD) endpoint found.\n", - __func__); - - - /* Allocate memory */ - alloc_status = 0; - - context = kzalloc(sizeof(*context), GFP_KERNEL); - if (!context) { - alloc_status = 1; - goto alloc_status_switch; - } - driver = kzalloc(sizeof(*driver), GFP_KERNEL); - if (!driver) { - alloc_status = 2; - goto alloc_status_switch; - } - rbuf = kmalloc(sizeof(*rbuf), GFP_KERNEL); - if (!rbuf) { - alloc_status = 3; - goto alloc_status_switch; - } - if (lirc_buffer_init(rbuf, BUF_CHUNK_SIZE, BUF_SIZE)) { - dev_err(&interface->dev, - "%s: lirc_buffer_init failed\n", __func__); - alloc_status = 4; - goto alloc_status_switch; - } - rx_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!rx_urb) { - alloc_status = 5; - goto alloc_status_switch; - } - if (vfd_ep_found) { - tx_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!tx_urb) { - alloc_status = 6; - goto alloc_status_switch; - } - } - - mutex_init(&context->ctx_lock); - - strcpy(driver->name, MOD_NAME); - driver->minor = -1; - driver->code_length = 64; - driver->sample_rate = 0; - driver->features = LIRC_CAN_REC_LIRCCODE; - driver->data = context; - driver->rbuf = rbuf; - driver->set_use_inc = ir_open; - driver->set_use_dec = ir_close; - driver->dev = &interface->dev; - driver->owner = THIS_MODULE; - - mutex_lock(&context->ctx_lock); - - lirc_minor = lirc_register_driver(driver); - if (lirc_minor < 0) { - dev_err(&interface->dev, - "%s: lirc_register_driver failed\n", __func__); - alloc_status = 7; - retval = lirc_minor; - goto unlock; - } else - dev_info(&interface->dev, - "%s: Registered Sasem driver (minor:%d)\n", - __func__, lirc_minor); - - /* Needed while unregistering! */ - driver->minor = lirc_minor; - - context->dev = dev; - context->dev_present = 1; - context->rx_endpoint = rx_endpoint; - context->rx_urb = rx_urb; - if (vfd_ep_found) { - context->tx_endpoint = tx_endpoint; - context->tx_urb = tx_urb; - context->vfd_contrast = 1000; /* range 0 - 1000 */ - } - context->driver = driver; - - usb_set_intfdata(interface, context); - - if (vfd_ep_found) { - - if (debug) - dev_info(&interface->dev, - "Registering VFD with sysfs\n"); - if (usb_register_dev(interface, &sasem_class)) - /* Not a fatal error, so ignore */ - dev_info(&interface->dev, - "%s: could not get a minor number for VFD\n", - __func__); - } - - dev_info(&interface->dev, - "%s: Sasem device on usb<%d:%d> initialized\n", - __func__, dev->bus->busnum, dev->devnum); -unlock: - mutex_unlock(&context->ctx_lock); - -alloc_status_switch: - switch (alloc_status) { - - case 7: - if (vfd_ep_found) - usb_free_urb(tx_urb); - case 6: - usb_free_urb(rx_urb); - /* fall-through */ - case 5: - lirc_buffer_free(rbuf); - /* fall-through */ - case 4: - kfree(rbuf); - /* fall-through */ - case 3: - kfree(driver); - /* fall-through */ - case 2: - kfree(context); - context = NULL; - /* fall-through */ - case 1: - if (retval == 0) - retval = -ENOMEM; - } - -exit: - return retval; -} - -/** - * Callback function for USB core API: disconnect - */ -static void sasem_disconnect(struct usb_interface *interface) -{ - struct sasem_context *context; - - /* prevent races with ir_open()/vfd_open() */ - mutex_lock(&disconnect_lock); - - context = usb_get_intfdata(interface); - mutex_lock(&context->ctx_lock); - - dev_info(&interface->dev, "%s: Sasem device disconnected\n", - __func__); - - usb_set_intfdata(interface, NULL); - context->dev_present = 0; - - /* Stop reception */ - usb_kill_urb(context->rx_urb); - - /* Abort ongoing write */ - if (atomic_read(&context->tx.busy)) { - - usb_kill_urb(context->tx_urb); - wait_for_completion(&context->tx.finished); - } - - /* De-register from lirc_dev if IR port is not open */ - if (!context->ir_isopen) - deregister_from_lirc(context); - - usb_deregister_dev(interface, &sasem_class); - - mutex_unlock(&context->ctx_lock); - - if (!context->ir_isopen && !context->vfd_isopen) - delete_context(context); - - mutex_unlock(&disconnect_lock); -} - -module_usb_driver(sasem_driver); diff --git a/drivers/staging/media/lirc/lirc_sir.c b/drivers/staging/media/lirc/lirc_sir.c deleted file mode 100644 index c6c3de94adaa..000000000000 --- a/drivers/staging/media/lirc/lirc_sir.c +++ /dev/null @@ -1,839 +0,0 @@ -/* - * LIRC SIR driver, (C) 2000 Milan Pikula <www@fornax.sk> - * - * sir_ir - Device driver for use with SIR (serial infra red) - * mode of IrDA on many notebooks. - * - * 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 - * - * - * 2000/09/16 Frank Przybylski <mail@frankprzybylski.de> : - * added timeout and relaxed pulse detection, removed gap bug - * - * 2000/12/15 Christoph Bartelmus <lirc@bartelmus.de> : - * added support for Tekram Irmate 210 (sending does not work yet, - * kind of disappointing that nobody was able to implement that - * before), - * major clean-up - * - * 2001/02/27 Christoph Bartelmus <lirc@bartelmus.de> : - * added support for StrongARM SA1100 embedded microprocessor - * parts cut'n'pasted from sa1100_ir.c (C) 2000 Russell King - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/module.h> -#include <linux/sched/signal.h> -#include <linux/errno.h> -#include <linux/signal.h> -#include <linux/fs.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/kernel.h> -#include <linux/serial_reg.h> -#include <linux/ktime.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/wait.h> -#include <linux/mm.h> -#include <linux/delay.h> -#include <linux/poll.h> -#include <linux/io.h> -#include <asm/irq.h> -#include <linux/fcntl.h> -#include <linux/platform_device.h> - -#include <linux/timer.h> - -#include <media/rc-core.h> - -/* SECTION: Definitions */ - -/*** Tekram dongle ***/ -#ifdef LIRC_SIR_TEKRAM -/* stolen from kernel source */ -/* definitions for Tekram dongle */ -#define TEKRAM_115200 0x00 -#define TEKRAM_57600 0x01 -#define TEKRAM_38400 0x02 -#define TEKRAM_19200 0x03 -#define TEKRAM_9600 0x04 -#define TEKRAM_2400 0x08 - -#define TEKRAM_PW 0x10 /* Pulse select bit */ - -/* 10bit * 1s/115200bit in milliseconds = 87ms*/ -#define TIME_CONST (10000000ul/115200ul) - -#endif - -#ifdef LIRC_SIR_ACTISYS_ACT200L -static void init_act200(void); -#elif defined(LIRC_SIR_ACTISYS_ACT220L) -static void init_act220(void); -#endif - -#define PULSE '[' - -#ifndef LIRC_SIR_TEKRAM -/* 9bit * 1s/115200bit in milli seconds = 78.125ms*/ -#define TIME_CONST (9000000ul/115200ul) -#endif - - -/* timeout for sequences in jiffies (=5/100s), must be longer than TIME_CONST */ -#define SIR_TIMEOUT (HZ*5/100) - -#ifndef LIRC_ON_SA1100 -#ifndef LIRC_IRQ -#define LIRC_IRQ 4 -#endif -#ifndef LIRC_PORT -/* for external dongles, default to com1 */ -#if defined(LIRC_SIR_ACTISYS_ACT200L) || \ - defined(LIRC_SIR_ACTISYS_ACT220L) || \ - defined(LIRC_SIR_TEKRAM) -#define LIRC_PORT 0x3f8 -#else -/* onboard sir ports are typically com3 */ -#define LIRC_PORT 0x3e8 -#endif -#endif - -static int io = LIRC_PORT; -static int irq = LIRC_IRQ; -static int threshold = 3; -#endif - -static DEFINE_SPINLOCK(timer_lock); -static struct timer_list timerlist; -/* time of last signal change detected */ -static ktime_t last; -/* time of last UART data ready interrupt */ -static ktime_t last_intr_time; -static int last_value; -static struct rc_dev *rcdev; - -static struct platform_device *sir_ir_dev; - -static DEFINE_SPINLOCK(hardware_lock); - -static bool debug; - -/* SECTION: Prototypes */ - -/* Communication with user-space */ -static void add_read_queue(int flag, unsigned long val); -static int init_chrdev(void); -/* Hardware */ -static irqreturn_t sir_interrupt(int irq, void *dev_id); -static void send_space(unsigned long len); -static void send_pulse(unsigned long len); -static int init_hardware(void); -static void drop_hardware(void); -/* Initialisation */ -static int init_port(void); -static void drop_port(void); - -static inline unsigned int sinp(int offset) -{ - return inb(io + offset); -} - -static inline void soutp(int offset, int value) -{ - outb(value, io + offset); -} - -#ifndef MAX_UDELAY_MS -#define MAX_UDELAY_US 5000 -#else -#define MAX_UDELAY_US (MAX_UDELAY_MS*1000) -#endif - -static void safe_udelay(unsigned long usecs) -{ - while (usecs > MAX_UDELAY_US) { - udelay(MAX_UDELAY_US); - usecs -= MAX_UDELAY_US; - } - udelay(usecs); -} - -/* SECTION: Communication with user-space */ -static int sir_tx_ir(struct rc_dev *dev, unsigned int *tx_buf, - unsigned int count) -{ - unsigned long flags; - int i; - - local_irq_save(flags); - for (i = 0; i < count;) { - if (tx_buf[i]) - send_pulse(tx_buf[i]); - i++; - if (i >= count) - break; - if (tx_buf[i]) - send_space(tx_buf[i]); - i++; - } - local_irq_restore(flags); - - return count; -} - -static void add_read_queue(int flag, unsigned long val) -{ - DEFINE_IR_RAW_EVENT(ev); - - pr_debug("add flag %d with val %lu\n", flag, val); - - /* - * statistically, pulses are ~TIME_CONST/2 too long. we could - * maybe make this more exact, but this is good enough - */ - if (flag) { - /* pulse */ - if (val > TIME_CONST / 2) - val -= TIME_CONST / 2; - else /* should not ever happen */ - val = 1; - ev.pulse = true; - } else { - val += TIME_CONST / 2; - } - ev.duration = US_TO_NS(val); - - ir_raw_event_store_with_filter(rcdev, &ev); -} - -static int init_chrdev(void) -{ - rcdev = devm_rc_allocate_device(&sir_ir_dev->dev, RC_DRIVER_IR_RAW); - if (!rcdev) - return -ENOMEM; - - rcdev->input_phys = KBUILD_MODNAME "/input0"; - rcdev->input_id.bustype = BUS_HOST; - rcdev->input_id.vendor = 0x0001; - rcdev->input_id.product = 0x0001; - rcdev->input_id.version = 0x0100; - rcdev->tx_ir = sir_tx_ir; - rcdev->allowed_protocols = RC_BIT_ALL_IR_DECODER; - rcdev->map_name = RC_MAP_RC6_MCE; - rcdev->timeout = IR_DEFAULT_TIMEOUT; - rcdev->dev.parent = &sir_ir_dev->dev; - - return devm_rc_register_device(&sir_ir_dev->dev, rcdev); -} - -/* SECTION: Hardware */ -static void sir_timeout(unsigned long data) -{ - /* - * if last received signal was a pulse, but receiving stopped - * within the 9 bit frame, we need to finish this pulse and - * simulate a signal change to from pulse to space. Otherwise - * upper layers will receive two sequences next time. - */ - - unsigned long flags; - unsigned long pulse_end; - - /* avoid interference with interrupt */ - spin_lock_irqsave(&timer_lock, flags); - if (last_value) { - /* clear unread bits in UART and restart */ - outb(UART_FCR_CLEAR_RCVR, io + UART_FCR); - /* determine 'virtual' pulse end: */ - pulse_end = min_t(unsigned long, - ktime_us_delta(last, last_intr_time), - IR_MAX_DURATION); - dev_dbg(&sir_ir_dev->dev, "timeout add %d for %lu usec\n", - last_value, pulse_end); - add_read_queue(last_value, pulse_end); - last_value = 0; - last = last_intr_time; - } - spin_unlock_irqrestore(&timer_lock, flags); - ir_raw_event_handle(rcdev); -} - -static irqreturn_t sir_interrupt(int irq, void *dev_id) -{ - unsigned char data; - ktime_t curr_time; - static unsigned long delt; - unsigned long deltintr; - unsigned long flags; - int iir, lsr; - - while ((iir = inb(io + UART_IIR) & UART_IIR_ID)) { - switch (iir&UART_IIR_ID) { /* FIXME toto treba preriedit */ - case UART_IIR_MSI: - (void) inb(io + UART_MSR); - break; - case UART_IIR_RLSI: - (void) inb(io + UART_LSR); - break; - case UART_IIR_THRI: -#if 0 - if (lsr & UART_LSR_THRE) /* FIFO is empty */ - outb(data, io + UART_TX) -#endif - break; - case UART_IIR_RDI: - /* avoid interference with timer */ - spin_lock_irqsave(&timer_lock, flags); - do { - del_timer(&timerlist); - data = inb(io + UART_RX); - curr_time = ktime_get(); - delt = min_t(unsigned long, - ktime_us_delta(last, curr_time), - IR_MAX_DURATION); - deltintr = min_t(unsigned long, - ktime_us_delta(last_intr_time, - curr_time), - IR_MAX_DURATION); - dev_dbg(&sir_ir_dev->dev, "t %lu, d %d\n", - deltintr, (int)data); - /* - * if nothing came in last X cycles, - * it was gap - */ - if (deltintr > TIME_CONST * threshold) { - if (last_value) { - dev_dbg(&sir_ir_dev->dev, "GAP\n"); - /* simulate signal change */ - add_read_queue(last_value, - delt - - deltintr); - last_value = 0; - last = last_intr_time; - delt = deltintr; - } - } - data = 1; - if (data ^ last_value) { - /* - * deltintr > 2*TIME_CONST, remember? - * the other case is timeout - */ - add_read_queue(last_value, - delt-TIME_CONST); - last_value = data; - last = curr_time; - last = ktime_sub_us(last, - TIME_CONST); - } - last_intr_time = curr_time; - if (data) { - /* - * start timer for end of - * sequence detection - */ - timerlist.expires = jiffies + - SIR_TIMEOUT; - add_timer(&timerlist); - } - - lsr = inb(io + UART_LSR); - } while (lsr & UART_LSR_DR); /* data ready */ - spin_unlock_irqrestore(&timer_lock, flags); - break; - default: - break; - } - } - ir_raw_event_handle(rcdev); - return IRQ_RETVAL(IRQ_HANDLED); -} - -static void send_space(unsigned long len) -{ - safe_udelay(len); -} - -static void send_pulse(unsigned long len) -{ - long bytes_out = len / TIME_CONST; - - if (bytes_out == 0) - bytes_out++; - - while (bytes_out--) { - outb(PULSE, io + UART_TX); - /* FIXME treba seriozne cakanie z char/serial.c */ - while (!(inb(io + UART_LSR) & UART_LSR_THRE)) - ; - } -} - -static int init_hardware(void) -{ - unsigned long flags; - - spin_lock_irqsave(&hardware_lock, flags); - /* reset UART */ -#if defined(LIRC_SIR_TEKRAM) - /* disable FIFO */ - soutp(UART_FCR, - UART_FCR_CLEAR_RCVR| - UART_FCR_CLEAR_XMIT| - UART_FCR_TRIGGER_1); - - /* Set DLAB 0. */ - soutp(UART_LCR, sinp(UART_LCR) & (~UART_LCR_DLAB)); - - /* First of all, disable all interrupts */ - soutp(UART_IER, sinp(UART_IER) & - (~(UART_IER_MSI|UART_IER_RLSI|UART_IER_THRI|UART_IER_RDI))); - - /* Set DLAB 1. */ - soutp(UART_LCR, sinp(UART_LCR) | UART_LCR_DLAB); - - /* Set divisor to 12 => 9600 Baud */ - soutp(UART_DLM, 0); - soutp(UART_DLL, 12); - - /* Set DLAB 0. */ - soutp(UART_LCR, sinp(UART_LCR) & (~UART_LCR_DLAB)); - - /* power supply */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_DTR|UART_MCR_OUT2); - safe_udelay(50*1000); - - /* -DTR low -> reset PIC */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_OUT2); - udelay(1*1000); - - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_DTR|UART_MCR_OUT2); - udelay(100); - - - /* -RTS low -> send control byte */ - soutp(UART_MCR, UART_MCR_DTR|UART_MCR_OUT2); - udelay(7); - soutp(UART_TX, TEKRAM_115200|TEKRAM_PW); - - /* one byte takes ~1042 usec to transmit at 9600,8N1 */ - udelay(1500); - - /* back to normal operation */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_DTR|UART_MCR_OUT2); - udelay(50); - - udelay(1500); - - /* read previous control byte */ - pr_info("0x%02x\n", sinp(UART_RX)); - - /* Set DLAB 1. */ - soutp(UART_LCR, sinp(UART_LCR) | UART_LCR_DLAB); - - /* Set divisor to 1 => 115200 Baud */ - soutp(UART_DLM, 0); - soutp(UART_DLL, 1); - - /* Set DLAB 0, 8 Bit */ - soutp(UART_LCR, UART_LCR_WLEN8); - /* enable interrupts */ - soutp(UART_IER, sinp(UART_IER)|UART_IER_RDI); -#else - outb(0, io + UART_MCR); - outb(0, io + UART_IER); - /* init UART */ - /* set DLAB, speed = 115200 */ - outb(UART_LCR_DLAB | UART_LCR_WLEN7, io + UART_LCR); - outb(1, io + UART_DLL); outb(0, io + UART_DLM); - /* 7N1+start = 9 bits at 115200 ~ 3 bits at 44000 */ - outb(UART_LCR_WLEN7, io + UART_LCR); - /* FIFO operation */ - outb(UART_FCR_ENABLE_FIFO, io + UART_FCR); - /* interrupts */ - /* outb(UART_IER_RLSI|UART_IER_RDI|UART_IER_THRI, io + UART_IER); */ - outb(UART_IER_RDI, io + UART_IER); - /* turn on UART */ - outb(UART_MCR_DTR|UART_MCR_RTS|UART_MCR_OUT2, io + UART_MCR); -#ifdef LIRC_SIR_ACTISYS_ACT200L - init_act200(); -#elif defined(LIRC_SIR_ACTISYS_ACT220L) - init_act220(); -#endif -#endif - spin_unlock_irqrestore(&hardware_lock, flags); - return 0; -} - -static void drop_hardware(void) -{ - unsigned long flags; - - spin_lock_irqsave(&hardware_lock, flags); - - /* turn off interrupts */ - outb(0, io + UART_IER); - - spin_unlock_irqrestore(&hardware_lock, flags); -} - -/* SECTION: Initialisation */ - -static int init_port(void) -{ - int retval; - - /* get I/O port access and IRQ line */ - if (!request_region(io, 8, KBUILD_MODNAME)) { - pr_err("i/o port 0x%.4x already in use.\n", io); - return -EBUSY; - } - retval = request_irq(irq, sir_interrupt, 0, - KBUILD_MODNAME, NULL); - if (retval < 0) { - release_region(io, 8); - pr_err("IRQ %d already in use.\n", irq); - return retval; - } - pr_info("I/O port 0x%.4x, IRQ %d.\n", io, irq); - - setup_timer(&timerlist, sir_timeout, 0); - - return 0; -} - -static void drop_port(void) -{ - free_irq(irq, NULL); - del_timer_sync(&timerlist); - release_region(io, 8); -} - -#ifdef LIRC_SIR_ACTISYS_ACT200L -/* Crystal/Cirrus CS8130 IR transceiver, used in Actisys Act200L dongle */ -/* some code borrowed from Linux IRDA driver */ - -/* Register 0: Control register #1 */ -#define ACT200L_REG0 0x00 -#define ACT200L_TXEN 0x01 /* Enable transmitter */ -#define ACT200L_RXEN 0x02 /* Enable receiver */ -#define ACT200L_ECHO 0x08 /* Echo control chars */ - -/* Register 1: Control register #2 */ -#define ACT200L_REG1 0x10 -#define ACT200L_LODB 0x01 /* Load new baud rate count value */ -#define ACT200L_WIDE 0x04 /* Expand the maximum allowable pulse */ - -/* Register 3: Transmit mode register #2 */ -#define ACT200L_REG3 0x30 -#define ACT200L_B0 0x01 /* DataBits, 0=6, 1=7, 2=8, 3=9(8P) */ -#define ACT200L_B1 0x02 /* DataBits, 0=6, 1=7, 2=8, 3=9(8P) */ -#define ACT200L_CHSY 0x04 /* StartBit Synced 0=bittime, 1=startbit */ - -/* Register 4: Output Power register */ -#define ACT200L_REG4 0x40 -#define ACT200L_OP0 0x01 /* Enable LED1C output */ -#define ACT200L_OP1 0x02 /* Enable LED2C output */ -#define ACT200L_BLKR 0x04 - -/* Register 5: Receive Mode register */ -#define ACT200L_REG5 0x50 -#define ACT200L_RWIDL 0x01 /* fixed 1.6us pulse mode */ - /*.. other various IRDA bit modes, and TV remote modes..*/ - -/* Register 6: Receive Sensitivity register #1 */ -#define ACT200L_REG6 0x60 -#define ACT200L_RS0 0x01 /* receive threshold bit 0 */ -#define ACT200L_RS1 0x02 /* receive threshold bit 1 */ - -/* Register 7: Receive Sensitivity register #2 */ -#define ACT200L_REG7 0x70 -#define ACT200L_ENPOS 0x04 /* Ignore the falling edge */ - -/* Register 8,9: Baud Rate Divider register #1,#2 */ -#define ACT200L_REG8 0x80 -#define ACT200L_REG9 0x90 - -#define ACT200L_2400 0x5f -#define ACT200L_9600 0x17 -#define ACT200L_19200 0x0b -#define ACT200L_38400 0x05 -#define ACT200L_57600 0x03 -#define ACT200L_115200 0x01 - -/* Register 13: Control register #3 */ -#define ACT200L_REG13 0xd0 -#define ACT200L_SHDW 0x01 /* Enable access to shadow registers */ - -/* Register 15: Status register */ -#define ACT200L_REG15 0xf0 - -/* Register 21: Control register #4 */ -#define ACT200L_REG21 0x50 -#define ACT200L_EXCK 0x02 /* Disable clock output driver */ -#define ACT200L_OSCL 0x04 /* oscillator in low power, medium accuracy mode */ - -static void init_act200(void) -{ - int i; - __u8 control[] = { - ACT200L_REG15, - ACT200L_REG13 | ACT200L_SHDW, - ACT200L_REG21 | ACT200L_EXCK | ACT200L_OSCL, - ACT200L_REG13, - ACT200L_REG7 | ACT200L_ENPOS, - ACT200L_REG6 | ACT200L_RS0 | ACT200L_RS1, - ACT200L_REG5 | ACT200L_RWIDL, - ACT200L_REG4 | ACT200L_OP0 | ACT200L_OP1 | ACT200L_BLKR, - ACT200L_REG3 | ACT200L_B0, - ACT200L_REG0 | ACT200L_TXEN | ACT200L_RXEN, - ACT200L_REG8 | (ACT200L_115200 & 0x0f), - ACT200L_REG9 | ((ACT200L_115200 >> 4) & 0x0f), - ACT200L_REG1 | ACT200L_LODB | ACT200L_WIDE - }; - - /* Set DLAB 1. */ - soutp(UART_LCR, UART_LCR_DLAB | UART_LCR_WLEN8); - - /* Set divisor to 12 => 9600 Baud */ - soutp(UART_DLM, 0); - soutp(UART_DLL, 12); - - /* Set DLAB 0. */ - soutp(UART_LCR, UART_LCR_WLEN8); - /* Set divisor to 12 => 9600 Baud */ - - /* power supply */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_DTR|UART_MCR_OUT2); - for (i = 0; i < 50; i++) - safe_udelay(1000); - - /* Reset the dongle : set RTS low for 25 ms */ - soutp(UART_MCR, UART_MCR_DTR|UART_MCR_OUT2); - for (i = 0; i < 25; i++) - udelay(1000); - - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_DTR|UART_MCR_OUT2); - udelay(100); - - /* Clear DTR and set RTS to enter command mode */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_OUT2); - udelay(7); - - /* send out the control register settings for 115K 7N1 SIR operation */ - for (i = 0; i < sizeof(control); i++) { - soutp(UART_TX, control[i]); - /* one byte takes ~1042 usec to transmit at 9600,8N1 */ - udelay(1500); - } - - /* back to normal operation */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_DTR|UART_MCR_OUT2); - udelay(50); - - udelay(1500); - soutp(UART_LCR, sinp(UART_LCR) | UART_LCR_DLAB); - - /* Set DLAB 1. */ - soutp(UART_LCR, UART_LCR_DLAB | UART_LCR_WLEN7); - - /* Set divisor to 1 => 115200 Baud */ - soutp(UART_DLM, 0); - soutp(UART_DLL, 1); - - /* Set DLAB 0. */ - soutp(UART_LCR, sinp(UART_LCR) & (~UART_LCR_DLAB)); - - /* Set DLAB 0, 7 Bit */ - soutp(UART_LCR, UART_LCR_WLEN7); - - /* enable interrupts */ - soutp(UART_IER, sinp(UART_IER)|UART_IER_RDI); -} -#endif - -#ifdef LIRC_SIR_ACTISYS_ACT220L -/* - * Derived from linux IrDA driver (net/irda/actisys.c) - * Drop me a mail for any kind of comment: maxx@spaceboyz.net - */ - -void init_act220(void) -{ - int i; - - /* DLAB 1 */ - soutp(UART_LCR, UART_LCR_DLAB|UART_LCR_WLEN7); - - /* 9600 baud */ - soutp(UART_DLM, 0); - soutp(UART_DLL, 12); - - /* DLAB 0 */ - soutp(UART_LCR, UART_LCR_WLEN7); - - /* reset the dongle, set DTR low for 10us */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_OUT2); - udelay(10); - - /* back to normal (still 9600) */ - soutp(UART_MCR, UART_MCR_DTR|UART_MCR_RTS|UART_MCR_OUT2); - - /* - * send RTS pulses until we reach 115200 - * i hope this is really the same for act220l/act220l+ - */ - for (i = 0; i < 3; i++) { - udelay(10); - /* set RTS low for 10 us */ - soutp(UART_MCR, UART_MCR_DTR|UART_MCR_OUT2); - udelay(10); - /* set RTS high for 10 us */ - soutp(UART_MCR, UART_MCR_RTS|UART_MCR_DTR|UART_MCR_OUT2); - } - - /* back to normal operation */ - udelay(1500); /* better safe than sorry ;) */ - - /* Set DLAB 1. */ - soutp(UART_LCR, UART_LCR_DLAB | UART_LCR_WLEN7); - - /* Set divisor to 1 => 115200 Baud */ - soutp(UART_DLM, 0); - soutp(UART_DLL, 1); - - /* Set DLAB 0, 7 Bit */ - /* The dongle doesn't seem to have any problems with operation at 7N1 */ - soutp(UART_LCR, UART_LCR_WLEN7); - - /* enable interrupts */ - soutp(UART_IER, UART_IER_RDI); -} -#endif - -static int init_sir_ir(void) -{ - int retval; - - retval = init_port(); - if (retval < 0) - return retval; - init_hardware(); - pr_info("Installed.\n"); - return 0; -} - -static int sir_ir_probe(struct platform_device *dev) -{ - return 0; -} - -static int sir_ir_remove(struct platform_device *dev) -{ - return 0; -} - -static struct platform_driver sir_ir_driver = { - .probe = sir_ir_probe, - .remove = sir_ir_remove, - .driver = { - .name = "sir_ir", - }, -}; - -static int __init sir_ir_init(void) -{ - int retval; - - retval = platform_driver_register(&sir_ir_driver); - if (retval) { - pr_err("Platform driver register failed!\n"); - return -ENODEV; - } - - sir_ir_dev = platform_device_alloc("sir_ir", 0); - if (!sir_ir_dev) { - pr_err("Platform device alloc failed!\n"); - retval = -ENOMEM; - goto pdev_alloc_fail; - } - - retval = platform_device_add(sir_ir_dev); - if (retval) { - pr_err("Platform device add failed!\n"); - retval = -ENODEV; - goto pdev_add_fail; - } - - retval = init_chrdev(); - if (retval < 0) - goto fail; - - retval = init_sir_ir(); - if (retval) - goto fail; - - return 0; - -fail: - platform_device_del(sir_ir_dev); -pdev_add_fail: - platform_device_put(sir_ir_dev); -pdev_alloc_fail: - platform_driver_unregister(&sir_ir_driver); - return retval; -} - -static void __exit sir_ir_exit(void) -{ - drop_hardware(); - drop_port(); - platform_device_unregister(sir_ir_dev); - platform_driver_unregister(&sir_ir_driver); - pr_info("Uninstalled.\n"); -} - -module_init(sir_ir_init); -module_exit(sir_ir_exit); - -#ifdef LIRC_SIR_TEKRAM -MODULE_DESCRIPTION("Infrared receiver driver for Tekram Irmate 210"); -MODULE_AUTHOR("Christoph Bartelmus"); -#elif defined(LIRC_SIR_ACTISYS_ACT200L) -MODULE_DESCRIPTION("LIRC driver for Actisys Act200L"); -MODULE_AUTHOR("Karl Bongers"); -#elif defined(LIRC_SIR_ACTISYS_ACT220L) -MODULE_DESCRIPTION("LIRC driver for Actisys Act220L(+)"); -MODULE_AUTHOR("Jan Roemisch"); -#else -MODULE_DESCRIPTION("Infrared receiver driver for SIR type serial ports"); -MODULE_AUTHOR("Milan Pikula"); -#endif -MODULE_LICENSE("GPL"); - -module_param(io, int, S_IRUGO); -MODULE_PARM_DESC(io, "I/O address base (0x3f8 or 0x2f8)"); - -module_param(irq, int, S_IRUGO); -MODULE_PARM_DESC(irq, "Interrupt (4 or 3)"); - -module_param(threshold, int, S_IRUGO); -MODULE_PARM_DESC(threshold, "space detection threshold (3)"); - -module_param(debug, bool, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(debug, "Enable debugging messages"); diff --git a/drivers/staging/media/lirc/lirc_zilog.c b/drivers/staging/media/lirc/lirc_zilog.c index e4a533b6beb3..8ce1db04414a 100644 --- a/drivers/staging/media/lirc/lirc_zilog.c +++ b/drivers/staging/media/lirc/lirc_zilog.c @@ -1475,7 +1475,7 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id) ir = get_ir_device_by_adapter(adap); if (ir == NULL) { ir = kzalloc(sizeof(struct IR), GFP_KERNEL); - if (ir == NULL) { + if (!ir) { ret = -ENOMEM; goto out_no_ir; } @@ -1515,7 +1515,7 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id) /* Set up a struct IR_tx instance */ tx = kzalloc(sizeof(struct IR_tx), GFP_KERNEL); - if (tx == NULL) { + if (!tx) { ret = -ENOMEM; goto out_put_xx; } @@ -1559,7 +1559,7 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id) /* Set up a struct IR_rx instance */ rx = kzalloc(sizeof(struct IR_rx), GFP_KERNEL); - if (rx == NULL) { + if (!rx) { ret = -ENOMEM; goto out_put_xx; } @@ -1597,7 +1597,7 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id) i2c_set_clientdata(client, NULL); put_ir_rx(rx, true); ir->l.features &= ~LIRC_CAN_REC_LIRCCODE; - goto out_put_xx; + goto out_put_tx; } /* Proceed only if the Tx client is also ready */ @@ -1637,6 +1637,7 @@ out_ok: out_put_xx: if (rx != NULL) put_ir_rx(rx, true); +out_put_tx: if (tx != NULL) put_ir_tx(tx, true); out_put_ir: diff --git a/drivers/staging/media/omap4iss/iss_csi2.c b/drivers/staging/media/omap4iss/iss_csi2.c index f71d5f2f179f..f6acc541e8a2 100644 --- a/drivers/staging/media/omap4iss/iss_csi2.c +++ b/drivers/staging/media/omap4iss/iss_csi2.c @@ -1268,7 +1268,7 @@ static int csi2_init_entities(struct iss_csi2_device *csi2, const char *subname) snprintf(name, sizeof(name), "CSI2%s", subname); snprintf(sd->name, sizeof(sd->name), "OMAP4 ISS %s", name); - sd->grp_id = 1 << 16; /* group ID for iss subdevs */ + sd->grp_id = BIT(16); /* group ID for iss subdevs */ v4l2_set_subdevdata(sd, csi2); sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; diff --git a/drivers/staging/media/omap4iss/iss_ipipe.c b/drivers/staging/media/omap4iss/iss_ipipe.c index d38782e8e84c..d86ef8a031f2 100644 --- a/drivers/staging/media/omap4iss/iss_ipipe.c +++ b/drivers/staging/media/omap4iss/iss_ipipe.c @@ -508,7 +508,7 @@ static int ipipe_init_entities(struct iss_ipipe_device *ipipe) v4l2_subdev_init(sd, &ipipe_v4l2_ops); sd->internal_ops = &ipipe_v4l2_internal_ops; strlcpy(sd->name, "OMAP4 ISS ISP IPIPE", sizeof(sd->name)); - sd->grp_id = 1 << 16; /* group ID for iss subdevs */ + sd->grp_id = BIT(16); /* group ID for iss subdevs */ v4l2_set_subdevdata(sd, ipipe); sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; diff --git a/drivers/staging/media/omap4iss/iss_ipipeif.c b/drivers/staging/media/omap4iss/iss_ipipeif.c index 23de8330731d..cb88b2bd0d82 100644 --- a/drivers/staging/media/omap4iss/iss_ipipeif.c +++ b/drivers/staging/media/omap4iss/iss_ipipeif.c @@ -739,7 +739,7 @@ static int ipipeif_init_entities(struct iss_ipipeif_device *ipipeif) v4l2_subdev_init(sd, &ipipeif_v4l2_ops); sd->internal_ops = &ipipeif_v4l2_internal_ops; strlcpy(sd->name, "OMAP4 ISS ISP IPIPEIF", sizeof(sd->name)); - sd->grp_id = 1 << 16; /* group ID for iss subdevs */ + sd->grp_id = BIT(16); /* group ID for iss subdevs */ v4l2_set_subdevdata(sd, ipipeif); sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; diff --git a/drivers/staging/media/omap4iss/iss_resizer.c b/drivers/staging/media/omap4iss/iss_resizer.c index f1d352c711d5..4bbfa20b3c38 100644 --- a/drivers/staging/media/omap4iss/iss_resizer.c +++ b/drivers/staging/media/omap4iss/iss_resizer.c @@ -782,7 +782,7 @@ static int resizer_init_entities(struct iss_resizer_device *resizer) v4l2_subdev_init(sd, &resizer_v4l2_ops); sd->internal_ops = &resizer_v4l2_internal_ops; strlcpy(sd->name, "OMAP4 ISS ISP resizer", sizeof(sd->name)); - sd->grp_id = 1 << 16; /* group ID for iss subdevs */ + sd->grp_id = BIT(16); /* group ID for iss subdevs */ v4l2_set_subdevdata(sd, resizer); sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; diff --git a/drivers/staging/media/omap4iss/iss_video.c b/drivers/staging/media/omap4iss/iss_video.c index bb0e3b4a4558..0bac58241a22 100644 --- a/drivers/staging/media/omap4iss/iss_video.c +++ b/drivers/staging/media/omap4iss/iss_video.c @@ -128,7 +128,8 @@ static unsigned int iss_video_mbus_to_pix(const struct iss_video *video, pix->width = mbus->width; pix->height = mbus->height; - /* Skip the last format in the loop so that it will be selected if no + /* + * Skip the last format in the loop so that it will be selected if no * match is found. */ for (i = 0; i < ARRAY_SIZE(formats) - 1; ++i) { @@ -138,7 +139,8 @@ static unsigned int iss_video_mbus_to_pix(const struct iss_video *video, min_bpl = pix->width * ALIGN(formats[i].bpp, 8) / 8; - /* Clamp the requested bytes per line value. If the maximum bytes per + /* + * Clamp the requested bytes per line value. If the maximum bytes per * line value is zero, the module doesn't support user configurable line * sizes. Override the requested value with the minimum in that case. */ @@ -172,7 +174,8 @@ static void iss_video_pix_to_mbus(const struct v4l2_pix_format *pix, mbus->width = pix->width; mbus->height = pix->height; - /* Skip the last format in the loop so that it will be selected if no + /* + * Skip the last format in the loop so that it will be selected if no * match is found. */ for (i = 0; i < ARRAY_SIZE(formats) - 1; ++i) { @@ -298,7 +301,8 @@ iss_video_check_format(struct iss_video *video, struct iss_video_fh *vfh) static int iss_video_queue_setup(struct vb2_queue *vq, unsigned int *count, unsigned int *num_planes, - unsigned int sizes[], struct device *alloc_devs[]) + unsigned int sizes[], + struct device *alloc_devs[]) { struct iss_video_fh *vfh = vb2_get_drv_priv(vq); struct iss_video *video = vfh->video; @@ -360,7 +364,8 @@ static void iss_video_buf_queue(struct vb2_buffer *vb) spin_lock_irqsave(&video->qlock, flags); - /* Mark the buffer is faulty and give it back to the queue immediately + /* + * Mark the buffer is faulty and give it back to the queue immediately * if the video node has registered an error. vb2 will perform the same * check when preparing the buffer, but that is inherently racy, so we * need to handle the race condition with an authoritative check here. @@ -443,7 +448,8 @@ struct iss_buffer *omap4iss_video_buffer_next(struct iss_video *video) buf->vb.vb2_buf.timestamp = ktime_get_ns(); - /* Do frame number propagation only if this is the output video node. + /* + * Do frame number propagation only if this is the output video node. * Frame number either comes from the CSI receivers or it gets * incremented here if H3A is not active. * Note: There is no guarantee that the output buffer will finish @@ -605,7 +611,8 @@ iss_video_set_format(struct file *file, void *fh, struct v4l2_format *format) mutex_lock(&video->mutex); - /* Fill the bytesperline and sizeimage fields by converting to media bus + /* + * Fill the bytesperline and sizeimage fields by converting to media bus * format and back to pixel format. */ iss_video_pix_to_mbus(&format->fmt.pix, &fmt); @@ -678,8 +685,9 @@ iss_video_get_selection(struct file *file, void *fh, struct v4l2_selection *sel) if (subdev == NULL) return -EINVAL; - /* Try the get selection operation first and fallback to get format if not - * implemented. + /* + * Try the get selection operation first and fallback to get format if + * not implemented. */ sdsel.pad = pad; ret = v4l2_subdev_call(subdev, pad, get_selection, NULL, &sdsel); @@ -867,7 +875,8 @@ iss_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type) mutex_lock(&video->stream_lock); - /* Start streaming on the pipeline. No link touching an entity in the + /* + * Start streaming on the pipeline. No link touching an entity in the * pipeline can be activated or deactivated once streaming is started. */ pipe = entity->pipe @@ -895,7 +904,8 @@ iss_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type) while ((entity = media_graph_walk_next(&graph))) media_entity_enum_set(&pipe->ent_enum, entity); - /* Verify that the currently configured format matches the output of + /* + * Verify that the currently configured format matches the output of * the connected subdev. */ ret = iss_video_check_format(video, vfh); @@ -905,7 +915,8 @@ iss_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type) video->bpl_padding = ret; video->bpl_value = vfh->format.fmt.pix.bytesperline; - /* Find the ISS video node connected at the far end of the pipeline and + /* + * Find the ISS video node connected at the far end of the pipeline and * update the pipeline. */ far_end = iss_video_far_end(video); @@ -930,7 +941,8 @@ iss_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type) pipe->state |= state; spin_unlock_irqrestore(&pipe->lock, flags); - /* Set the maximum time per frame as the value requested by userspace. + /* + * Set the maximum time per frame as the value requested by userspace. * This is a soft limit that can be overridden if the hardware doesn't * support the request limit. */ @@ -946,7 +958,8 @@ iss_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type) if (ret < 0) goto err_iss_video_check_format; - /* In sensor-to-memory mode, the stream can be started synchronously + /* + * In sensor-to-memory mode, the stream can be started synchronously * to the stream on command. In memory-to-memory mode, it will be * started when buffers are queued on both the input and output. */ diff --git a/drivers/staging/media/s5p-cec/Kconfig b/drivers/staging/media/s5p-cec/Kconfig deleted file mode 100644 index 7a3489df3e70..000000000000 --- a/drivers/staging/media/s5p-cec/Kconfig +++ /dev/null @@ -1,9 +0,0 @@ -config VIDEO_SAMSUNG_S5P_CEC - tristate "Samsung S5P CEC driver" - depends on VIDEO_DEV && MEDIA_CEC_SUPPORT && (ARCH_EXYNOS || COMPILE_TEST) - ---help--- - This is a driver for Samsung S5P HDMI CEC interface. It uses the - generic CEC framework interface. - CEC bus is present in the HDMI connector and enables communication - between compatible devices. - diff --git a/drivers/staging/media/s5p-cec/Makefile b/drivers/staging/media/s5p-cec/Makefile deleted file mode 100644 index 0e2cf457825a..000000000000 --- a/drivers/staging/media/s5p-cec/Makefile +++ /dev/null @@ -1,2 +0,0 @@ -obj-$(CONFIG_VIDEO_SAMSUNG_S5P_CEC) += s5p-cec.o -s5p-cec-y += s5p_cec.o exynos_hdmi_cecctrl.o diff --git a/drivers/staging/media/s5p-cec/TODO b/drivers/staging/media/s5p-cec/TODO deleted file mode 100644 index 64f21bab38f5..000000000000 --- a/drivers/staging/media/s5p-cec/TODO +++ /dev/null @@ -1,7 +0,0 @@ -This driver requires that userspace sets the physical address. -However, this should be passed on from the corresponding -Samsung HDMI driver. - -We have to wait until the HDMI notifier framework has been merged -in order to handle this gracefully, until that time this driver -has to remain in staging. diff --git a/drivers/staging/media/s5p-cec/exynos_hdmi_cec.h b/drivers/staging/media/s5p-cec/exynos_hdmi_cec.h deleted file mode 100644 index 7d9453505dce..000000000000 --- a/drivers/staging/media/s5p-cec/exynos_hdmi_cec.h +++ /dev/null @@ -1,37 +0,0 @@ -/* drivers/media/platform/s5p-cec/exynos_hdmi_cec.h - * - * Copyright (c) 2010, 2014 Samsung Electronics - * http://www.samsung.com/ - * - * Header file for interface of Samsung Exynos hdmi cec hardware - * - * 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. - */ - -#ifndef _EXYNOS_HDMI_CEC_H_ -#define _EXYNOS_HDMI_CEC_H_ __FILE__ - -#include <linux/regmap.h> -#include "s5p_cec.h" - -void s5p_cec_set_divider(struct s5p_cec_dev *cec); -void s5p_cec_enable_rx(struct s5p_cec_dev *cec); -void s5p_cec_mask_rx_interrupts(struct s5p_cec_dev *cec); -void s5p_cec_unmask_rx_interrupts(struct s5p_cec_dev *cec); -void s5p_cec_mask_tx_interrupts(struct s5p_cec_dev *cec); -void s5p_cec_unmask_tx_interrupts(struct s5p_cec_dev *cec); -void s5p_cec_reset(struct s5p_cec_dev *cec); -void s5p_cec_tx_reset(struct s5p_cec_dev *cec); -void s5p_cec_rx_reset(struct s5p_cec_dev *cec); -void s5p_cec_threshold(struct s5p_cec_dev *cec); -void s5p_cec_copy_packet(struct s5p_cec_dev *cec, char *data, - size_t count, u8 retries); -void s5p_cec_set_addr(struct s5p_cec_dev *cec, u32 addr); -u32 s5p_cec_get_status(struct s5p_cec_dev *cec); -void s5p_clr_pending_tx(struct s5p_cec_dev *cec); -void s5p_clr_pending_rx(struct s5p_cec_dev *cec); -void s5p_cec_get_rx_buf(struct s5p_cec_dev *cec, u32 size, u8 *buffer); - -#endif /* _EXYNOS_HDMI_CEC_H_ */ diff --git a/drivers/staging/media/s5p-cec/exynos_hdmi_cecctrl.c b/drivers/staging/media/s5p-cec/exynos_hdmi_cecctrl.c deleted file mode 100644 index 1edf667d562a..000000000000 --- a/drivers/staging/media/s5p-cec/exynos_hdmi_cecctrl.c +++ /dev/null @@ -1,208 +0,0 @@ -/* drivers/media/platform/s5p-cec/exynos_hdmi_cecctrl.c - * - * Copyright (c) 2009, 2014 Samsung Electronics - * http://www.samsung.com/ - * - * cec ftn file for Samsung TVOUT driver - * - * 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/io.h> -#include <linux/device.h> - -#include "exynos_hdmi_cec.h" -#include "regs-cec.h" - -#define S5P_HDMI_FIN 24000000 -#define CEC_DIV_RATIO 320000 - -#define CEC_MESSAGE_BROADCAST_MASK 0x0F -#define CEC_MESSAGE_BROADCAST 0x0F -#define CEC_FILTER_THRESHOLD 0x15 - -void s5p_cec_set_divider(struct s5p_cec_dev *cec) -{ - u32 div_ratio, div_val; - unsigned int reg; - - div_ratio = S5P_HDMI_FIN / CEC_DIV_RATIO - 1; - - if (regmap_read(cec->pmu, EXYNOS_HDMI_PHY_CONTROL, ®)) { - dev_err(cec->dev, "failed to read phy control\n"); - return; - } - - reg = (reg & ~(0x3FF << 16)) | (div_ratio << 16); - - if (regmap_write(cec->pmu, EXYNOS_HDMI_PHY_CONTROL, reg)) { - dev_err(cec->dev, "failed to write phy control\n"); - return; - } - - div_val = CEC_DIV_RATIO * 0.00005 - 1; - - writeb(0x0, cec->reg + S5P_CEC_DIVISOR_3); - writeb(0x0, cec->reg + S5P_CEC_DIVISOR_2); - writeb(0x0, cec->reg + S5P_CEC_DIVISOR_1); - writeb(div_val, cec->reg + S5P_CEC_DIVISOR_0); -} - -void s5p_cec_enable_rx(struct s5p_cec_dev *cec) -{ - u8 reg; - - reg = readb(cec->reg + S5P_CEC_RX_CTRL); - reg |= S5P_CEC_RX_CTRL_ENABLE; - writeb(reg, cec->reg + S5P_CEC_RX_CTRL); -} - -void s5p_cec_mask_rx_interrupts(struct s5p_cec_dev *cec) -{ - u8 reg; - - reg = readb(cec->reg + S5P_CEC_IRQ_MASK); - reg |= S5P_CEC_IRQ_RX_DONE; - reg |= S5P_CEC_IRQ_RX_ERROR; - writeb(reg, cec->reg + S5P_CEC_IRQ_MASK); -} - -void s5p_cec_unmask_rx_interrupts(struct s5p_cec_dev *cec) -{ - u8 reg; - - reg = readb(cec->reg + S5P_CEC_IRQ_MASK); - reg &= ~S5P_CEC_IRQ_RX_DONE; - reg &= ~S5P_CEC_IRQ_RX_ERROR; - writeb(reg, cec->reg + S5P_CEC_IRQ_MASK); -} - -void s5p_cec_mask_tx_interrupts(struct s5p_cec_dev *cec) -{ - u8 reg; - - reg = readb(cec->reg + S5P_CEC_IRQ_MASK); - reg |= S5P_CEC_IRQ_TX_DONE; - reg |= S5P_CEC_IRQ_TX_ERROR; - writeb(reg, cec->reg + S5P_CEC_IRQ_MASK); -} - -void s5p_cec_unmask_tx_interrupts(struct s5p_cec_dev *cec) -{ - u8 reg; - - reg = readb(cec->reg + S5P_CEC_IRQ_MASK); - reg &= ~S5P_CEC_IRQ_TX_DONE; - reg &= ~S5P_CEC_IRQ_TX_ERROR; - writeb(reg, cec->reg + S5P_CEC_IRQ_MASK); -} - -void s5p_cec_reset(struct s5p_cec_dev *cec) -{ - u8 reg; - - writeb(S5P_CEC_RX_CTRL_RESET, cec->reg + S5P_CEC_RX_CTRL); - writeb(S5P_CEC_TX_CTRL_RESET, cec->reg + S5P_CEC_TX_CTRL); - - reg = readb(cec->reg + 0xc4); - reg &= ~0x1; - writeb(reg, cec->reg + 0xc4); -} - -void s5p_cec_tx_reset(struct s5p_cec_dev *cec) -{ - writeb(S5P_CEC_TX_CTRL_RESET, cec->reg + S5P_CEC_TX_CTRL); -} - -void s5p_cec_rx_reset(struct s5p_cec_dev *cec) -{ - u8 reg; - - writeb(S5P_CEC_RX_CTRL_RESET, cec->reg + S5P_CEC_RX_CTRL); - - reg = readb(cec->reg + 0xc4); - reg &= ~0x1; - writeb(reg, cec->reg + 0xc4); -} - -void s5p_cec_threshold(struct s5p_cec_dev *cec) -{ - writeb(CEC_FILTER_THRESHOLD, cec->reg + S5P_CEC_RX_FILTER_TH); - writeb(0, cec->reg + S5P_CEC_RX_FILTER_CTRL); -} - -void s5p_cec_copy_packet(struct s5p_cec_dev *cec, char *data, - size_t count, u8 retries) -{ - int i = 0; - u8 reg; - - while (i < count) { - writeb(data[i], cec->reg + (S5P_CEC_TX_BUFF0 + (i * 4))); - i++; - } - - writeb(count, cec->reg + S5P_CEC_TX_BYTES); - reg = readb(cec->reg + S5P_CEC_TX_CTRL); - reg |= S5P_CEC_TX_CTRL_START; - reg &= ~0x70; - reg |= retries << 4; - - if ((data[0] & CEC_MESSAGE_BROADCAST_MASK) == CEC_MESSAGE_BROADCAST) { - dev_dbg(cec->dev, "Broadcast"); - reg |= S5P_CEC_TX_CTRL_BCAST; - } else { - dev_dbg(cec->dev, "No Broadcast"); - reg &= ~S5P_CEC_TX_CTRL_BCAST; - } - - writeb(reg, cec->reg + S5P_CEC_TX_CTRL); - dev_dbg(cec->dev, "cec-tx: cec count (%zu): %*ph", count, - (int)count, data); -} - -void s5p_cec_set_addr(struct s5p_cec_dev *cec, u32 addr) -{ - writeb(addr & 0x0F, cec->reg + S5P_CEC_LOGIC_ADDR); -} - -u32 s5p_cec_get_status(struct s5p_cec_dev *cec) -{ - u32 status = 0; - - status = readb(cec->reg + S5P_CEC_STATUS_0); - status |= readb(cec->reg + S5P_CEC_STATUS_1) << 8; - status |= readb(cec->reg + S5P_CEC_STATUS_2) << 16; - status |= readb(cec->reg + S5P_CEC_STATUS_3) << 24; - - dev_dbg(cec->dev, "status = 0x%x!\n", status); - - return status; -} - -void s5p_clr_pending_tx(struct s5p_cec_dev *cec) -{ - writeb(S5P_CEC_IRQ_TX_DONE | S5P_CEC_IRQ_TX_ERROR, - cec->reg + S5P_CEC_IRQ_CLEAR); -} - -void s5p_clr_pending_rx(struct s5p_cec_dev *cec) -{ - writeb(S5P_CEC_IRQ_RX_DONE | S5P_CEC_IRQ_RX_ERROR, - cec->reg + S5P_CEC_IRQ_CLEAR); -} - -void s5p_cec_get_rx_buf(struct s5p_cec_dev *cec, u32 size, u8 *buffer) -{ - u32 i = 0; - char debug[40]; - - while (i < size) { - buffer[i] = readb(cec->reg + S5P_CEC_RX_BUFF0 + (i * 4)); - sprintf(debug + i * 2, "%02x ", buffer[i]); - i++; - } - dev_dbg(cec->dev, "cec-rx: cec size(%d): %s", size, debug); -} diff --git a/drivers/staging/media/s5p-cec/regs-cec.h b/drivers/staging/media/s5p-cec/regs-cec.h deleted file mode 100644 index b2e7e129920e..000000000000 --- a/drivers/staging/media/s5p-cec/regs-cec.h +++ /dev/null @@ -1,96 +0,0 @@ -/* drivers/media/platform/s5p-cec/regs-cec.h - * - * Copyright (c) 2010 Samsung Electronics - * http://www.samsung.com/ - * - * register header file for Samsung TVOUT driver - * - * 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. - */ - -#ifndef __EXYNOS_REGS__H -#define __EXYNOS_REGS__H - -/* - * Register part - */ -#define S5P_CEC_STATUS_0 (0x0000) -#define S5P_CEC_STATUS_1 (0x0004) -#define S5P_CEC_STATUS_2 (0x0008) -#define S5P_CEC_STATUS_3 (0x000C) -#define S5P_CEC_IRQ_MASK (0x0010) -#define S5P_CEC_IRQ_CLEAR (0x0014) -#define S5P_CEC_LOGIC_ADDR (0x0020) -#define S5P_CEC_DIVISOR_0 (0x0030) -#define S5P_CEC_DIVISOR_1 (0x0034) -#define S5P_CEC_DIVISOR_2 (0x0038) -#define S5P_CEC_DIVISOR_3 (0x003C) - -#define S5P_CEC_TX_CTRL (0x0040) -#define S5P_CEC_TX_BYTES (0x0044) -#define S5P_CEC_TX_STAT0 (0x0060) -#define S5P_CEC_TX_STAT1 (0x0064) -#define S5P_CEC_TX_BUFF0 (0x0080) -#define S5P_CEC_TX_BUFF1 (0x0084) -#define S5P_CEC_TX_BUFF2 (0x0088) -#define S5P_CEC_TX_BUFF3 (0x008C) -#define S5P_CEC_TX_BUFF4 (0x0090) -#define S5P_CEC_TX_BUFF5 (0x0094) -#define S5P_CEC_TX_BUFF6 (0x0098) -#define S5P_CEC_TX_BUFF7 (0x009C) -#define S5P_CEC_TX_BUFF8 (0x00A0) -#define S5P_CEC_TX_BUFF9 (0x00A4) -#define S5P_CEC_TX_BUFF10 (0x00A8) -#define S5P_CEC_TX_BUFF11 (0x00AC) -#define S5P_CEC_TX_BUFF12 (0x00B0) -#define S5P_CEC_TX_BUFF13 (0x00B4) -#define S5P_CEC_TX_BUFF14 (0x00B8) -#define S5P_CEC_TX_BUFF15 (0x00BC) - -#define S5P_CEC_RX_CTRL (0x00C0) -#define S5P_CEC_RX_STAT0 (0x00E0) -#define S5P_CEC_RX_STAT1 (0x00E4) -#define S5P_CEC_RX_BUFF0 (0x0100) -#define S5P_CEC_RX_BUFF1 (0x0104) -#define S5P_CEC_RX_BUFF2 (0x0108) -#define S5P_CEC_RX_BUFF3 (0x010C) -#define S5P_CEC_RX_BUFF4 (0x0110) -#define S5P_CEC_RX_BUFF5 (0x0114) -#define S5P_CEC_RX_BUFF6 (0x0118) -#define S5P_CEC_RX_BUFF7 (0x011C) -#define S5P_CEC_RX_BUFF8 (0x0120) -#define S5P_CEC_RX_BUFF9 (0x0124) -#define S5P_CEC_RX_BUFF10 (0x0128) -#define S5P_CEC_RX_BUFF11 (0x012C) -#define S5P_CEC_RX_BUFF12 (0x0130) -#define S5P_CEC_RX_BUFF13 (0x0134) -#define S5P_CEC_RX_BUFF14 (0x0138) -#define S5P_CEC_RX_BUFF15 (0x013C) - -#define S5P_CEC_RX_FILTER_CTRL (0x0180) -#define S5P_CEC_RX_FILTER_TH (0x0184) - -/* - * Bit definition part - */ -#define S5P_CEC_IRQ_TX_DONE (1<<0) -#define S5P_CEC_IRQ_TX_ERROR (1<<1) -#define S5P_CEC_IRQ_RX_DONE (1<<4) -#define S5P_CEC_IRQ_RX_ERROR (1<<5) - -#define S5P_CEC_TX_CTRL_START (1<<0) -#define S5P_CEC_TX_CTRL_BCAST (1<<1) -#define S5P_CEC_TX_CTRL_RETRY (0x04<<4) -#define S5P_CEC_TX_CTRL_RESET (1<<7) - -#define S5P_CEC_RX_CTRL_ENABLE (1<<0) -#define S5P_CEC_RX_CTRL_RESET (1<<7) - -#define S5P_CEC_LOGIC_ADDR_MASK (0xF) - -/* PMU Registers for PHY */ -#define EXYNOS_HDMI_PHY_CONTROL 0x700 - -#endif /* __EXYNOS_REGS__H */ diff --git a/drivers/staging/media/s5p-cec/s5p_cec.c b/drivers/staging/media/s5p-cec/s5p_cec.c deleted file mode 100644 index 2a07968b5ac6..000000000000 --- a/drivers/staging/media/s5p-cec/s5p_cec.c +++ /dev/null @@ -1,280 +0,0 @@ -/* drivers/media/platform/s5p-cec/s5p_cec.c - * - * Samsung S5P CEC driver - * - * Copyright (c) 2014 Samsung Electronics Co., Ltd. - * - * 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 driver is based on the "cec interface driver for exynos soc" by - * SangPil Moon. - */ - -#include <linux/clk.h> -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/mfd/syscon.h> -#include <linux/module.h> -#include <linux/of.h> -#include <linux/platform_device.h> -#include <linux/pm_runtime.h> -#include <linux/timer.h> -#include <linux/workqueue.h> -#include <media/cec.h> - -#include "exynos_hdmi_cec.h" -#include "regs-cec.h" -#include "s5p_cec.h" - -#define CEC_NAME "s5p-cec" - -static int debug; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "debug level (0-2)"); - -static int s5p_cec_adap_enable(struct cec_adapter *adap, bool enable) -{ - struct s5p_cec_dev *cec = adap->priv; - - if (enable) { - pm_runtime_get_sync(cec->dev); - - s5p_cec_reset(cec); - - s5p_cec_set_divider(cec); - s5p_cec_threshold(cec); - - s5p_cec_unmask_tx_interrupts(cec); - s5p_cec_unmask_rx_interrupts(cec); - s5p_cec_enable_rx(cec); - } else { - s5p_cec_mask_tx_interrupts(cec); - s5p_cec_mask_rx_interrupts(cec); - pm_runtime_disable(cec->dev); - } - - return 0; -} - -static int s5p_cec_adap_log_addr(struct cec_adapter *adap, u8 addr) -{ - struct s5p_cec_dev *cec = adap->priv; - - s5p_cec_set_addr(cec, addr); - return 0; -} - -static int s5p_cec_adap_transmit(struct cec_adapter *adap, u8 attempts, - u32 signal_free_time, struct cec_msg *msg) -{ - struct s5p_cec_dev *cec = adap->priv; - - /* - * Unclear if 0 retries are allowed by the hardware, so have 1 as - * the minimum. - */ - s5p_cec_copy_packet(cec, msg->msg, msg->len, max(1, attempts - 1)); - return 0; -} - -static irqreturn_t s5p_cec_irq_handler(int irq, void *priv) -{ - struct s5p_cec_dev *cec = priv; - u32 status = 0; - - status = s5p_cec_get_status(cec); - - dev_dbg(cec->dev, "irq received\n"); - - if (status & CEC_STATUS_TX_DONE) { - if (status & CEC_STATUS_TX_ERROR) { - dev_dbg(cec->dev, "CEC_STATUS_TX_ERROR set\n"); - cec->tx = STATE_ERROR; - } else { - dev_dbg(cec->dev, "CEC_STATUS_TX_DONE\n"); - cec->tx = STATE_DONE; - } - s5p_clr_pending_tx(cec); - } - - if (status & CEC_STATUS_RX_DONE) { - if (status & CEC_STATUS_RX_ERROR) { - dev_dbg(cec->dev, "CEC_STATUS_RX_ERROR set\n"); - s5p_cec_rx_reset(cec); - s5p_cec_enable_rx(cec); - } else { - dev_dbg(cec->dev, "CEC_STATUS_RX_DONE set\n"); - if (cec->rx != STATE_IDLE) - dev_dbg(cec->dev, "Buffer overrun (worker did not process previous message)\n"); - cec->rx = STATE_BUSY; - cec->msg.len = status >> 24; - cec->msg.rx_status = CEC_RX_STATUS_OK; - s5p_cec_get_rx_buf(cec, cec->msg.len, - cec->msg.msg); - cec->rx = STATE_DONE; - s5p_cec_enable_rx(cec); - } - /* Clear interrupt pending bit */ - s5p_clr_pending_rx(cec); - } - return IRQ_WAKE_THREAD; -} - -static irqreturn_t s5p_cec_irq_handler_thread(int irq, void *priv) -{ - struct s5p_cec_dev *cec = priv; - - dev_dbg(cec->dev, "irq processing thread\n"); - switch (cec->tx) { - case STATE_DONE: - cec_transmit_done(cec->adap, CEC_TX_STATUS_OK, 0, 0, 0, 0); - cec->tx = STATE_IDLE; - break; - case STATE_ERROR: - cec_transmit_done(cec->adap, - CEC_TX_STATUS_MAX_RETRIES | CEC_TX_STATUS_ERROR, - 0, 0, 0, 1); - cec->tx = STATE_IDLE; - break; - case STATE_BUSY: - dev_err(cec->dev, "state set to busy, this should not occur here\n"); - break; - default: - break; - } - - switch (cec->rx) { - case STATE_DONE: - cec_received_msg(cec->adap, &cec->msg); - cec->rx = STATE_IDLE; - break; - default: - break; - } - - return IRQ_HANDLED; -} - -static const struct cec_adap_ops s5p_cec_adap_ops = { - .adap_enable = s5p_cec_adap_enable, - .adap_log_addr = s5p_cec_adap_log_addr, - .adap_transmit = s5p_cec_adap_transmit, -}; - -static int s5p_cec_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct resource *res; - struct s5p_cec_dev *cec; - int ret; - - cec = devm_kzalloc(&pdev->dev, sizeof(*cec), GFP_KERNEL); - if (!cec) - return -ENOMEM; - - cec->dev = dev; - - cec->irq = platform_get_irq(pdev, 0); - if (cec->irq < 0) - return cec->irq; - - ret = devm_request_threaded_irq(dev, cec->irq, s5p_cec_irq_handler, - s5p_cec_irq_handler_thread, 0, pdev->name, cec); - if (ret) - return ret; - - cec->clk = devm_clk_get(dev, "hdmicec"); - if (IS_ERR(cec->clk)) - return PTR_ERR(cec->clk); - - cec->pmu = syscon_regmap_lookup_by_phandle(dev->of_node, - "samsung,syscon-phandle"); - if (IS_ERR(cec->pmu)) - return -EPROBE_DEFER; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - cec->reg = devm_ioremap_resource(dev, res); - if (IS_ERR(cec->reg)) - return PTR_ERR(cec->reg); - - cec->adap = cec_allocate_adapter(&s5p_cec_adap_ops, cec, - CEC_NAME, - CEC_CAP_PHYS_ADDR | CEC_CAP_LOG_ADDRS | CEC_CAP_TRANSMIT | - CEC_CAP_PASSTHROUGH | CEC_CAP_RC, 1); - ret = PTR_ERR_OR_ZERO(cec->adap); - if (ret) - return ret; - ret = cec_register_adapter(cec->adap, &pdev->dev); - if (ret) { - cec_delete_adapter(cec->adap); - return ret; - } - - platform_set_drvdata(pdev, cec); - pm_runtime_enable(dev); - - dev_dbg(dev, "successfuly probed\n"); - return 0; -} - -static int s5p_cec_remove(struct platform_device *pdev) -{ - struct s5p_cec_dev *cec = platform_get_drvdata(pdev); - - cec_unregister_adapter(cec->adap); - pm_runtime_disable(&pdev->dev); - return 0; -} - -static int __maybe_unused s5p_cec_runtime_suspend(struct device *dev) -{ - struct s5p_cec_dev *cec = dev_get_drvdata(dev); - - clk_disable_unprepare(cec->clk); - return 0; -} - -static int __maybe_unused s5p_cec_runtime_resume(struct device *dev) -{ - struct s5p_cec_dev *cec = dev_get_drvdata(dev); - int ret; - - ret = clk_prepare_enable(cec->clk); - if (ret < 0) - return ret; - return 0; -} - -static const struct dev_pm_ops s5p_cec_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, - pm_runtime_force_resume) - SET_RUNTIME_PM_OPS(s5p_cec_runtime_suspend, s5p_cec_runtime_resume, - NULL) -}; - -static const struct of_device_id s5p_cec_match[] = { - { - .compatible = "samsung,s5p-cec", - }, - {}, -}; -MODULE_DEVICE_TABLE(of, s5p_cec_match); - -static struct platform_driver s5p_cec_pdrv = { - .probe = s5p_cec_probe, - .remove = s5p_cec_remove, - .driver = { - .name = CEC_NAME, - .of_match_table = s5p_cec_match, - .pm = &s5p_cec_pm_ops, - }, -}; - -module_platform_driver(s5p_cec_pdrv); - -MODULE_AUTHOR("Kamil Debski <kamil@wypas.org>"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Samsung S5P CEC driver"); diff --git a/drivers/staging/media/s5p-cec/s5p_cec.h b/drivers/staging/media/s5p-cec/s5p_cec.h deleted file mode 100644 index 03732c13d19f..000000000000 --- a/drivers/staging/media/s5p-cec/s5p_cec.h +++ /dev/null @@ -1,76 +0,0 @@ -/* drivers/media/platform/s5p-cec/s5p_cec.h - * - * Samsung S5P HDMI CEC driver - * - * Copyright (c) 2014 Samsung Electronics Co., Ltd. - * - * 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. - */ - -#ifndef _S5P_CEC_H_ -#define _S5P_CEC_H_ __FILE__ - -#include <linux/clk.h> -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/mfd/syscon.h> -#include <linux/module.h> -#include <linux/of.h> -#include <linux/platform_device.h> -#include <linux/pm_runtime.h> -#include <linux/timer.h> -#include <linux/version.h> -#include <linux/workqueue.h> -#include <media/cec.h> - -#include "exynos_hdmi_cec.h" -#include "regs-cec.h" -#include "s5p_cec.h" - -#define CEC_NAME "s5p-cec" - -#define CEC_STATUS_TX_RUNNING (1 << 0) -#define CEC_STATUS_TX_TRANSFERRING (1 << 1) -#define CEC_STATUS_TX_DONE (1 << 2) -#define CEC_STATUS_TX_ERROR (1 << 3) -#define CEC_STATUS_TX_BYTES (0xFF << 8) -#define CEC_STATUS_RX_RUNNING (1 << 16) -#define CEC_STATUS_RX_RECEIVING (1 << 17) -#define CEC_STATUS_RX_DONE (1 << 18) -#define CEC_STATUS_RX_ERROR (1 << 19) -#define CEC_STATUS_RX_BCAST (1 << 20) -#define CEC_STATUS_RX_BYTES (0xFF << 24) - -#define CEC_WORKER_TX_DONE (1 << 0) -#define CEC_WORKER_RX_MSG (1 << 1) - -/* CEC Rx buffer size */ -#define CEC_RX_BUFF_SIZE 16 -/* CEC Tx buffer size */ -#define CEC_TX_BUFF_SIZE 16 - -enum cec_state { - STATE_IDLE, - STATE_BUSY, - STATE_DONE, - STATE_ERROR -}; - -struct s5p_cec_dev { - struct cec_adapter *adap; - struct clk *clk; - struct device *dev; - struct mutex lock; - struct regmap *pmu; - int irq; - void __iomem *reg; - - enum cec_state rx; - enum cec_state tx; - struct cec_msg msg; -}; - -#endif /* _S5P_CEC_H_ */ diff --git a/drivers/staging/media/st-cec/Kconfig b/drivers/staging/media/st-cec/Kconfig deleted file mode 100644 index c04283db58d6..000000000000 --- a/drivers/staging/media/st-cec/Kconfig +++ /dev/null @@ -1,8 +0,0 @@ -config VIDEO_STI_HDMI_CEC - tristate "STMicroelectronics STiH4xx HDMI CEC driver" - depends on VIDEO_DEV && MEDIA_CEC_SUPPORT && (ARCH_STI || COMPILE_TEST) - ---help--- - This is a driver for STIH4xx HDMI CEC interface. It uses the - generic CEC framework interface. - CEC bus is present in the HDMI connector and enables communication - between compatible devices. diff --git a/drivers/staging/media/st-cec/Makefile b/drivers/staging/media/st-cec/Makefile deleted file mode 100644 index f07905e1448a..000000000000 --- a/drivers/staging/media/st-cec/Makefile +++ /dev/null @@ -1 +0,0 @@ -obj-$(CONFIG_VIDEO_STI_HDMI_CEC) += stih-cec.o diff --git a/drivers/staging/media/st-cec/TODO b/drivers/staging/media/st-cec/TODO deleted file mode 100644 index c61289742c5c..000000000000 --- a/drivers/staging/media/st-cec/TODO +++ /dev/null @@ -1,7 +0,0 @@ -This driver requires that userspace sets the physical address. -However, this should be passed on from the corresponding -ST HDMI driver. - -We have to wait until the HDMI notifier framework has been merged -in order to handle this gracefully, until that time this driver -has to remain in staging. diff --git a/drivers/staging/media/st-cec/stih-cec.c b/drivers/staging/media/st-cec/stih-cec.c deleted file mode 100644 index 3c25638a9610..000000000000 --- a/drivers/staging/media/st-cec/stih-cec.c +++ /dev/null @@ -1,379 +0,0 @@ -/* - * drivers/staging/media/st-cec/stih-cec.c - * - * STIH4xx CEC driver - * Copyright (C) STMicroelectronic SA 2016 - * - * 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. - */ -#include <linux/clk.h> -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/mfd/syscon.h> -#include <linux/module.h> -#include <linux/of.h> -#include <linux/platform_device.h> - -#include <media/cec.h> - -#define CEC_NAME "stih-cec" - -/* CEC registers */ -#define CEC_CLK_DIV 0x0 -#define CEC_CTRL 0x4 -#define CEC_IRQ_CTRL 0x8 -#define CEC_STATUS 0xC -#define CEC_EXT_STATUS 0x10 -#define CEC_TX_CTRL 0x14 -#define CEC_FREE_TIME_THRESH 0x18 -#define CEC_BIT_TOUT_THRESH 0x1C -#define CEC_BIT_PULSE_THRESH 0x20 -#define CEC_DATA 0x24 -#define CEC_TX_ARRAY_CTRL 0x28 -#define CEC_CTRL2 0x2C -#define CEC_TX_ERROR_STS 0x30 -#define CEC_ADDR_TABLE 0x34 -#define CEC_DATA_ARRAY_CTRL 0x38 -#define CEC_DATA_ARRAY_STATUS 0x3C -#define CEC_TX_DATA_BASE 0x40 -#define CEC_TX_DATA_TOP 0x50 -#define CEC_TX_DATA_SIZE 0x1 -#define CEC_RX_DATA_BASE 0x54 -#define CEC_RX_DATA_TOP 0x64 -#define CEC_RX_DATA_SIZE 0x1 - -/* CEC_CTRL2 */ -#define CEC_LINE_INACTIVE_EN BIT(0) -#define CEC_AUTO_BUS_ERR_EN BIT(1) -#define CEC_STOP_ON_ARB_ERR_EN BIT(2) -#define CEC_TX_REQ_WAIT_EN BIT(3) - -/* CEC_DATA_ARRAY_CTRL */ -#define CEC_TX_ARRAY_EN BIT(0) -#define CEC_RX_ARRAY_EN BIT(1) -#define CEC_TX_ARRAY_RESET BIT(2) -#define CEC_RX_ARRAY_RESET BIT(3) -#define CEC_TX_N_OF_BYTES_IRQ_EN BIT(4) -#define CEC_TX_STOP_ON_NACK BIT(7) - -/* CEC_TX_ARRAY_CTRL */ -#define CEC_TX_N_OF_BYTES 0x1F -#define CEC_TX_START BIT(5) -#define CEC_TX_AUTO_SOM_EN BIT(6) -#define CEC_TX_AUTO_EOM_EN BIT(7) - -/* CEC_IRQ_CTRL */ -#define CEC_TX_DONE_IRQ_EN BIT(0) -#define CEC_ERROR_IRQ_EN BIT(2) -#define CEC_RX_DONE_IRQ_EN BIT(3) -#define CEC_RX_SOM_IRQ_EN BIT(4) -#define CEC_RX_EOM_IRQ_EN BIT(5) -#define CEC_FREE_TIME_IRQ_EN BIT(6) -#define CEC_PIN_STS_IRQ_EN BIT(7) - -/* CEC_CTRL */ -#define CEC_IN_FILTER_EN BIT(0) -#define CEC_PWR_SAVE_EN BIT(1) -#define CEC_EN BIT(4) -#define CEC_ACK_CTRL BIT(5) -#define CEC_RX_RESET_EN BIT(6) -#define CEC_IGNORE_RX_ERROR BIT(7) - -/* CEC_STATUS */ -#define CEC_TX_DONE_STS BIT(0) -#define CEC_TX_ACK_GET_STS BIT(1) -#define CEC_ERROR_STS BIT(2) -#define CEC_RX_DONE_STS BIT(3) -#define CEC_RX_SOM_STS BIT(4) -#define CEC_RX_EOM_STS BIT(5) -#define CEC_FREE_TIME_IRQ_STS BIT(6) -#define CEC_PIN_STS BIT(7) -#define CEC_SBIT_TOUT_STS BIT(8) -#define CEC_DBIT_TOUT_STS BIT(9) -#define CEC_LPULSE_ERROR_STS BIT(10) -#define CEC_HPULSE_ERROR_STS BIT(11) -#define CEC_TX_ERROR BIT(12) -#define CEC_TX_ARB_ERROR BIT(13) -#define CEC_RX_ERROR_MIN BIT(14) -#define CEC_RX_ERROR_MAX BIT(15) - -/* Signal free time in bit periods (2.4ms) */ -#define CEC_PRESENT_INIT_SFT 7 -#define CEC_NEW_INIT_SFT 5 -#define CEC_RETRANSMIT_SFT 3 - -/* Constants for CEC_BIT_TOUT_THRESH register */ -#define CEC_SBIT_TOUT_47MS BIT(1) -#define CEC_SBIT_TOUT_48MS (BIT(0) | BIT(1)) -#define CEC_SBIT_TOUT_50MS BIT(2) -#define CEC_DBIT_TOUT_27MS BIT(0) -#define CEC_DBIT_TOUT_28MS BIT(1) -#define CEC_DBIT_TOUT_29MS (BIT(0) | BIT(1)) - -/* Constants for CEC_BIT_PULSE_THRESH register */ -#define CEC_BIT_LPULSE_03MS BIT(1) -#define CEC_BIT_HPULSE_03MS BIT(3) - -/* Constants for CEC_DATA_ARRAY_STATUS register */ -#define CEC_RX_N_OF_BYTES 0x1F -#define CEC_TX_N_OF_BYTES_SENT BIT(5) -#define CEC_RX_OVERRUN BIT(6) - -struct stih_cec { - struct cec_adapter *adap; - struct device *dev; - struct clk *clk; - void __iomem *regs; - int irq; - u32 irq_status; -}; - -static int stih_cec_adap_enable(struct cec_adapter *adap, bool enable) -{ - struct stih_cec *cec = adap->priv; - - if (enable) { - /* The doc says (input TCLK_PERIOD * CEC_CLK_DIV) = 0.1ms */ - unsigned long clk_freq = clk_get_rate(cec->clk); - u32 cec_clk_div = clk_freq / 10000; - - writel(cec_clk_div, cec->regs + CEC_CLK_DIV); - - /* Configuration of the durations activating a timeout */ - writel(CEC_SBIT_TOUT_47MS | (CEC_DBIT_TOUT_28MS << 4), - cec->regs + CEC_BIT_TOUT_THRESH); - - /* Configuration of the smallest allowed duration for pulses */ - writel(CEC_BIT_LPULSE_03MS | CEC_BIT_HPULSE_03MS, - cec->regs + CEC_BIT_PULSE_THRESH); - - /* Minimum received bit period threshold */ - writel(BIT(5) | BIT(7), cec->regs + CEC_TX_CTRL); - - /* Configuration of transceiver data arrays */ - writel(CEC_TX_ARRAY_EN | CEC_RX_ARRAY_EN | CEC_TX_STOP_ON_NACK, - cec->regs + CEC_DATA_ARRAY_CTRL); - - /* Configuration of the control bits for CEC Transceiver */ - writel(CEC_IN_FILTER_EN | CEC_EN | CEC_RX_RESET_EN, - cec->regs + CEC_CTRL); - - /* Clear logical addresses */ - writel(0, cec->regs + CEC_ADDR_TABLE); - - /* Clear the status register */ - writel(0x0, cec->regs + CEC_STATUS); - - /* Enable the interrupts */ - writel(CEC_TX_DONE_IRQ_EN | CEC_RX_DONE_IRQ_EN | - CEC_RX_SOM_IRQ_EN | CEC_RX_EOM_IRQ_EN | - CEC_ERROR_IRQ_EN, - cec->regs + CEC_IRQ_CTRL); - - } else { - /* Clear logical addresses */ - writel(0, cec->regs + CEC_ADDR_TABLE); - - /* Clear the status register */ - writel(0x0, cec->regs + CEC_STATUS); - - /* Disable the interrupts */ - writel(0, cec->regs + CEC_IRQ_CTRL); - } - - return 0; -} - -static int stih_cec_adap_log_addr(struct cec_adapter *adap, u8 logical_addr) -{ - struct stih_cec *cec = adap->priv; - u32 reg = readl(cec->regs + CEC_ADDR_TABLE); - - reg |= 1 << logical_addr; - - if (logical_addr == CEC_LOG_ADDR_INVALID) - reg = 0; - - writel(reg, cec->regs + CEC_ADDR_TABLE); - - return 0; -} - -static int stih_cec_adap_transmit(struct cec_adapter *adap, u8 attempts, - u32 signal_free_time, struct cec_msg *msg) -{ - struct stih_cec *cec = adap->priv; - int i; - - /* Copy message into registers */ - for (i = 0; i < msg->len; i++) - writeb(msg->msg[i], cec->regs + CEC_TX_DATA_BASE + i); - - /* Start transmission, configure hardware to add start and stop bits - * Signal free time is handled by the hardware - */ - writel(CEC_TX_AUTO_SOM_EN | CEC_TX_AUTO_EOM_EN | CEC_TX_START | - msg->len, cec->regs + CEC_TX_ARRAY_CTRL); - - return 0; -} - -static void stih_tx_done(struct stih_cec *cec, u32 status) -{ - if (status & CEC_TX_ERROR) { - cec_transmit_done(cec->adap, CEC_TX_STATUS_ERROR, 0, 0, 0, 1); - return; - } - - if (status & CEC_TX_ARB_ERROR) { - cec_transmit_done(cec->adap, - CEC_TX_STATUS_ARB_LOST, 1, 0, 0, 0); - return; - } - - if (!(status & CEC_TX_ACK_GET_STS)) { - cec_transmit_done(cec->adap, CEC_TX_STATUS_NACK, 0, 1, 0, 0); - return; - } - - cec_transmit_done(cec->adap, CEC_TX_STATUS_OK, 0, 0, 0, 0); -} - -static void stih_rx_done(struct stih_cec *cec, u32 status) -{ - struct cec_msg msg = {}; - u8 i; - - if (status & CEC_RX_ERROR_MIN) - return; - - if (status & CEC_RX_ERROR_MAX) - return; - - msg.len = readl(cec->regs + CEC_DATA_ARRAY_STATUS) & 0x1f; - - if (!msg.len) - return; - - if (msg.len > 16) - msg.len = 16; - - for (i = 0; i < msg.len; i++) - msg.msg[i] = readl(cec->regs + CEC_RX_DATA_BASE + i); - - cec_received_msg(cec->adap, &msg); -} - -static irqreturn_t stih_cec_irq_handler_thread(int irq, void *priv) -{ - struct stih_cec *cec = priv; - - if (cec->irq_status & CEC_TX_DONE_STS) - stih_tx_done(cec, cec->irq_status); - - if (cec->irq_status & CEC_RX_DONE_STS) - stih_rx_done(cec, cec->irq_status); - - cec->irq_status = 0; - - return IRQ_HANDLED; -} - -static irqreturn_t stih_cec_irq_handler(int irq, void *priv) -{ - struct stih_cec *cec = priv; - - cec->irq_status = readl(cec->regs + CEC_STATUS); - writel(cec->irq_status, cec->regs + CEC_STATUS); - - return IRQ_WAKE_THREAD; -} - -static const struct cec_adap_ops sti_cec_adap_ops = { - .adap_enable = stih_cec_adap_enable, - .adap_log_addr = stih_cec_adap_log_addr, - .adap_transmit = stih_cec_adap_transmit, -}; - -static int stih_cec_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct resource *res; - struct stih_cec *cec; - int ret; - - cec = devm_kzalloc(dev, sizeof(*cec), GFP_KERNEL); - if (!cec) - return -ENOMEM; - - cec->dev = dev; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - cec->regs = devm_ioremap_resource(dev, res); - if (IS_ERR(cec->regs)) - return PTR_ERR(cec->regs); - - cec->irq = platform_get_irq(pdev, 0); - if (cec->irq < 0) - return cec->irq; - - ret = devm_request_threaded_irq(dev, cec->irq, stih_cec_irq_handler, - stih_cec_irq_handler_thread, 0, - pdev->name, cec); - if (ret) - return ret; - - cec->clk = devm_clk_get(dev, "cec-clk"); - if (IS_ERR(cec->clk)) { - dev_err(dev, "Cannot get cec clock\n"); - return PTR_ERR(cec->clk); - } - - cec->adap = cec_allocate_adapter(&sti_cec_adap_ops, cec, - CEC_NAME, - CEC_CAP_LOG_ADDRS | CEC_CAP_PASSTHROUGH | - CEC_CAP_PHYS_ADDR | CEC_CAP_TRANSMIT, 1); - ret = PTR_ERR_OR_ZERO(cec->adap); - if (ret) - return ret; - - ret = cec_register_adapter(cec->adap, &pdev->dev); - if (ret) { - cec_delete_adapter(cec->adap); - return ret; - } - - platform_set_drvdata(pdev, cec); - return 0; -} - -static int stih_cec_remove(struct platform_device *pdev) -{ - return 0; -} - -static const struct of_device_id stih_cec_match[] = { - { - .compatible = "st,stih-cec", - }, - {}, -}; -MODULE_DEVICE_TABLE(of, stih_cec_match); - -static struct platform_driver stih_cec_pdrv = { - .probe = stih_cec_probe, - .remove = stih_cec_remove, - .driver = { - .name = CEC_NAME, - .of_match_table = stih_cec_match, - }, -}; - -module_platform_driver(stih_cec_pdrv); - -MODULE_AUTHOR("Benjamin Gaignard <benjamin.gaignard@linaro.org>"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("STIH4xx CEC driver"); |