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authorChristian Gromm <christian.gromm@microchip.com>2020-03-10 16:02:40 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-03-24 15:42:44 +0300
commitb276527539188f1f61c082ebef27803db93e536d (patch)
treeadf3bad2a3b1e2b92536be813393b13238fb9651 /drivers
parent22dd4acc80495ea0fa3a54b36e49ef9dd5bad6c6 (diff)
downloadlinux-b276527539188f1f61c082ebef27803db93e536d.tar.xz
staging: most: move core files out of the staging area
This patch moves the core module to the /drivers/most directory and makes all necessary changes in order to not break the build. Signed-off-by: Christian Gromm <christian.gromm@microchip.com> Link: https://lore.kernel.org/r/1583845362-26707-2-git-send-email-christian.gromm@microchip.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/Kconfig1
-rw-r--r--drivers/Makefile1
-rw-r--r--drivers/most/Kconfig15
-rw-r--r--drivers/most/Makefile4
-rw-r--r--drivers/most/configfs.c (renamed from drivers/staging/most/configfs.c)3
-rw-r--r--drivers/most/core.c (renamed from drivers/staging/most/core.c)3
-rw-r--r--drivers/staging/most/Kconfig6
-rw-r--r--drivers/staging/most/Makefile3
-rw-r--r--drivers/staging/most/cdev/cdev.c3
-rw-r--r--drivers/staging/most/dim2/dim2.c3
-rw-r--r--drivers/staging/most/i2c/i2c.c3
-rw-r--r--drivers/staging/most/most.h337
-rw-r--r--drivers/staging/most/net/net.c3
-rw-r--r--drivers/staging/most/sound/sound.c3
-rw-r--r--drivers/staging/most/usb/usb.c3
-rw-r--r--drivers/staging/most/video/video.c3
16 files changed, 33 insertions, 361 deletions
diff --git a/drivers/Kconfig b/drivers/Kconfig
index 8befa53f43be..c7396659fdbe 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -228,4 +228,5 @@ source "drivers/interconnect/Kconfig"
source "drivers/counter/Kconfig"
+source "drivers/most/Kconfig"
endmenu
diff --git a/drivers/Makefile b/drivers/Makefile
index 31cf17dee252..7646549a1e93 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -186,3 +186,4 @@ obj-$(CONFIG_SIOX) += siox/
obj-$(CONFIG_GNSS) += gnss/
obj-$(CONFIG_INTERCONNECT) += interconnect/
obj-$(CONFIG_COUNTER) += counter/
+obj-$(CONFIG_MOST) += most/
diff --git a/drivers/most/Kconfig b/drivers/most/Kconfig
new file mode 100644
index 000000000000..58d7999170a7
--- /dev/null
+++ b/drivers/most/Kconfig
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+menuconfig MOST
+ tristate "MOST support"
+ depends on HAS_DMA && CONFIGFS_FS
+ default n
+ help
+ Say Y here if you want to enable MOST support.
+ This driver needs at least one additional component to enable the
+ desired access from userspace (e.g. character devices) and one that
+ matches the network controller's hardware interface (e.g. USB).
+
+ To compile this driver as a module, choose M here: the
+ module will be called most_core.
+
+ If in doubt, say N here.
diff --git a/drivers/most/Makefile b/drivers/most/Makefile
new file mode 100644
index 000000000000..e810cd3a47ee
--- /dev/null
+++ b/drivers/most/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_MOST) += most_core.o
+most_core-y := core.o \
+ configfs.o
diff --git a/drivers/staging/most/configfs.c b/drivers/most/configfs.c
index 9a961222f458..27b0c923597f 100644
--- a/drivers/staging/most/configfs.c
+++ b/drivers/most/configfs.c
@@ -10,8 +10,7 @@
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/configfs.h>
-
-#include "most.h"
+#include <linux/most.h>
#define MAX_STRING_SIZE 80
diff --git a/drivers/staging/most/core.c b/drivers/most/core.c
index f6b38d9d57e6..06426fc5c990 100644
--- a/drivers/staging/most/core.c
+++ b/drivers/most/core.c
@@ -20,8 +20,7 @@
#include <linux/kthread.h>
#include <linux/dma-mapping.h>
#include <linux/idr.h>
-
-#include "most.h"
+#include <linux/most.h>
#define MAX_CHANNELS 64
#define STRING_SIZE 80
diff --git a/drivers/staging/most/Kconfig b/drivers/staging/most/Kconfig
index 6262eb25c80b..c5a99f750abe 100644
--- a/drivers/staging/most/Kconfig
+++ b/drivers/staging/most/Kconfig
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
-menuconfig MOST
+menuconfig MOST_COMPONENTS
tristate "MOST support"
- depends on HAS_DMA && CONFIGFS_FS
+ depends on HAS_DMA && CONFIGFS_FS && MOST
default n
help
Say Y here if you want to enable MOST support.
@@ -16,7 +16,7 @@ menuconfig MOST
-if MOST
+if MOST_COMPONENTS
source "drivers/staging/most/cdev/Kconfig"
diff --git a/drivers/staging/most/Makefile b/drivers/staging/most/Makefile
index 20a99ecb37c4..a803a98654a8 100644
--- a/drivers/staging/most/Makefile
+++ b/drivers/staging/most/Makefile
@@ -1,7 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_MOST) += most_core.o
-most_core-y := core.o
-most_core-y += configfs.o
obj-$(CONFIG_MOST_CDEV) += cdev/
obj-$(CONFIG_MOST_NET) += net/
diff --git a/drivers/staging/most/cdev/cdev.c b/drivers/staging/most/cdev/cdev.c
index 71943d17f825..cc1e3dea196d 100644
--- a/drivers/staging/most/cdev/cdev.c
+++ b/drivers/staging/most/cdev/cdev.c
@@ -16,8 +16,7 @@
#include <linux/kfifo.h>
#include <linux/uaccess.h>
#include <linux/idr.h>
-
-#include "../most.h"
+#include <linux/most.h>
#define CHRDEV_REGION_SIZE 50
diff --git a/drivers/staging/most/dim2/dim2.c b/drivers/staging/most/dim2/dim2.c
index 16593281fcda..8e0f27e61652 100644
--- a/drivers/staging/most/dim2/dim2.c
+++ b/drivers/staging/most/dim2/dim2.c
@@ -20,8 +20,7 @@
#include <linux/dma-mapping.h>
#include <linux/sched.h>
#include <linux/kthread.h>
-
-#include "../most.h"
+#include <linux/most.h>
#include "hal.h"
#include "errors.h"
#include "sysfs.h"
diff --git a/drivers/staging/most/i2c/i2c.c b/drivers/staging/most/i2c/i2c.c
index 2980f7065846..893a8babdb2f 100644
--- a/drivers/staging/most/i2c/i2c.c
+++ b/drivers/staging/most/i2c/i2c.c
@@ -13,8 +13,7 @@
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/err.h>
-
-#include "../most.h"
+#include <linux/most.h>
enum { CH_RX, CH_TX, NUM_CHANNELS };
diff --git a/drivers/staging/most/most.h b/drivers/staging/most/most.h
deleted file mode 100644
index 232e01b7f5d2..000000000000
--- a/drivers/staging/most/most.h
+++ /dev/null
@@ -1,337 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * most.h - API for component and adapter drivers
- *
- * Copyright (C) 2013-2015, Microchip Technology Germany II GmbH & Co. KG
- */
-
-#ifndef __MOST_CORE_H__
-#define __MOST_CORE_H__
-
-#include <linux/types.h>
-#include <linux/device.h>
-
-struct module;
-struct interface_private;
-
-/**
- * Interface type
- */
-enum most_interface_type {
- ITYPE_LOOPBACK = 1,
- ITYPE_I2C,
- ITYPE_I2S,
- ITYPE_TSI,
- ITYPE_HBI,
- ITYPE_MEDIALB_DIM,
- ITYPE_MEDIALB_DIM2,
- ITYPE_USB,
- ITYPE_PCIE
-};
-
-/**
- * Channel direction.
- */
-enum most_channel_direction {
- MOST_CH_RX = 1 << 0,
- MOST_CH_TX = 1 << 1,
-};
-
-/**
- * Channel data type.
- */
-enum most_channel_data_type {
- MOST_CH_CONTROL = 1 << 0,
- MOST_CH_ASYNC = 1 << 1,
- MOST_CH_ISOC = 1 << 2,
- MOST_CH_SYNC = 1 << 5,
-};
-
-enum most_status_flags {
- /* MBO was processed successfully (data was send or received )*/
- MBO_SUCCESS = 0,
- /* The MBO contains wrong or missing information. */
- MBO_E_INVAL,
- /* MBO was completed as HDM Channel will be closed */
- MBO_E_CLOSE,
-};
-
-/**
- * struct most_channel_capability - Channel capability
- * @direction: Supported channel directions.
- * The value is bitwise OR-combination of the values from the
- * enumeration most_channel_direction. Zero is allowed value and means
- * "channel may not be used".
- * @data_type: Supported channel data types.
- * The value is bitwise OR-combination of the values from the
- * enumeration most_channel_data_type. Zero is allowed value and means
- * "channel may not be used".
- * @num_buffers_packet: Maximum number of buffers supported by this channel
- * for packet data types (Async,Control,QoS)
- * @buffer_size_packet: Maximum buffer size supported by this channel
- * for packet data types (Async,Control,QoS)
- * @num_buffers_streaming: Maximum number of buffers supported by this channel
- * for streaming data types (Sync,AV Packetized)
- * @buffer_size_streaming: Maximum buffer size supported by this channel
- * for streaming data types (Sync,AV Packetized)
- * @name_suffix: Optional suffix providean by an HDM that is attached to the
- * regular channel name.
- *
- * Describes the capabilities of a MOST channel like supported Data Types
- * and directions. This information is provided by an HDM for the MostCore.
- *
- * The Core creates read only sysfs attribute files in
- * /sys/devices/most/mdev#/<channel>/ with the
- * following attributes:
- * -available_directions
- * -available_datatypes
- * -number_of_packet_buffers
- * -number_of_stream_buffers
- * -size_of_packet_buffer
- * -size_of_stream_buffer
- * where content of each file is a string with all supported properties of this
- * very channel attribute.
- */
-struct most_channel_capability {
- u16 direction;
- u16 data_type;
- u16 num_buffers_packet;
- u16 buffer_size_packet;
- u16 num_buffers_streaming;
- u16 buffer_size_streaming;
- const char *name_suffix;
-};
-
-/**
- * struct most_channel_config - stores channel configuration
- * @direction: direction of the channel
- * @data_type: data type travelling over this channel
- * @num_buffers: number of buffers
- * @buffer_size: size of a buffer for AIM.
- * Buffer size may be cutted down by HDM in a configure callback
- * to match to a given interface and channel type.
- * @extra_len: additional buffer space for internal HDM purposes like padding.
- * May be set by HDM in a configure callback if needed.
- * @subbuffer_size: size of a subbuffer
- * @packets_per_xact: number of MOST frames that are packet inside one USB
- * packet. This is USB specific
- *
- * Describes the configuration for a MOST channel. This information is
- * provided from the MostCore to a HDM (like the Medusa PCIe Interface) as a
- * parameter of the "configure" function call.
- */
-struct most_channel_config {
- enum most_channel_direction direction;
- enum most_channel_data_type data_type;
- u16 num_buffers;
- u16 buffer_size;
- u16 extra_len;
- u16 subbuffer_size;
- u16 packets_per_xact;
- u16 dbr_size;
-};
-
-/*
- * struct mbo - MOST Buffer Object.
- * @context: context for core completion handler
- * @priv: private data for HDM
- *
- * public: documented fields that are used for the communications
- * between MostCore and HDMs
- *
- * @list: list head for use by the mbo's current owner
- * @ifp: (in) associated interface instance
- * @num_buffers_ptr: amount of pool buffers
- * @hdm_channel_id: (in) HDM channel instance
- * @virt_address: (in) kernel virtual address of the buffer
- * @bus_address: (in) bus address of the buffer
- * @buffer_length: (in) buffer payload length
- * @processed_length: (out) processed length
- * @status: (out) transfer status
- * @complete: (in) completion routine
- *
- * The core allocates and initializes the MBO.
- *
- * The HDM receives MBO for transfer from the core with the call to enqueue().
- * The HDM copies the data to- or from the buffer depending on configured
- * channel direction, set "processed_length" and "status" and completes
- * the transfer procedure by calling the completion routine.
- *
- * Finally, the MBO is being deallocated or recycled for further
- * transfers of the same or a different HDM.
- *
- * Directions of usage:
- * The core driver should never access any MBO fields (even if marked
- * as "public") while the MBO is owned by an HDM. The ownership starts with
- * the call of enqueue() and ends with the call of its complete() routine.
- *
- * II.
- * Every HDM attached to the core driver _must_ ensure that it returns any MBO
- * it owns (due to a previous call to enqueue() by the core driver) before it
- * de-registers an interface or gets unloaded from the kernel. If this direction
- * is violated memory leaks will occur, since the core driver does _not_ track
- * MBOs it is currently not in control of.
- *
- */
-struct mbo {
- void *context;
- void *priv;
- struct list_head list;
- struct most_interface *ifp;
- int *num_buffers_ptr;
- u16 hdm_channel_id;
- void *virt_address;
- dma_addr_t bus_address;
- u16 buffer_length;
- u16 processed_length;
- enum most_status_flags status;
- void (*complete)(struct mbo *mbo);
-};
-
-/**
- * Interface instance description.
- *
- * Describes an interface of a MOST device the core driver is bound to.
- * This structure is allocated and initialized in the HDM. MostCore may not
- * modify this structure.
- *
- * @dev: the actual device
- * @mod: module
- * @interface Interface type. \sa most_interface_type.
- * @description PRELIMINARY.
- * Unique description of the device instance from point of view of the
- * interface in free text form (ASCII).
- * It may be a hexadecimal presentation of the memory address for the MediaLB
- * IP or USB device ID with USB properties for USB interface, etc.
- * @num_channels Number of channels and size of the channel_vector.
- * @channel_vector Properties of the channels.
- * Array index represents channel ID by the driver.
- * @configure Callback to change data type for the channel of the
- * interface instance. May be zero if the instance of the interface is not
- * configurable. Parameter channel_config describes direction and data
- * type for the channel, configured by the higher level. The content of
- * @enqueue Delivers MBO to the HDM for processing.
- * After HDM completes Rx- or Tx- operation the processed MBO shall
- * be returned back to the MostCore using completion routine.
- * The reason to get the MBO delivered from the MostCore after the channel
- * is poisoned is the re-opening of the channel by the application.
- * In this case the HDM shall hold MBOs and service the channel as usual.
- * The HDM must be able to hold at least one MBO for each channel.
- * The callback returns a negative value on error, otherwise 0.
- * @poison_channel Informs HDM about closing the channel. The HDM shall
- * cancel all transfers and synchronously or asynchronously return
- * all enqueued for this channel MBOs using the completion routine.
- * The callback returns a negative value on error, otherwise 0.
- * @request_netinfo: triggers retrieving of network info from the HDM by
- * means of "Message exchange over MDP/MEP"
- * The call of the function request_netinfo with the parameter on_netinfo as
- * NULL prohibits use of the previously obtained function pointer.
- * @priv Private field used by mostcore to store context information.
- */
-struct most_interface {
- struct device *dev;
- struct device *driver_dev;
- struct module *mod;
- enum most_interface_type interface;
- const char *description;
- unsigned int num_channels;
- struct most_channel_capability *channel_vector;
- void *(*dma_alloc)(struct mbo *mbo, u32 size);
- void (*dma_free)(struct mbo *mbo, u32 size);
- int (*configure)(struct most_interface *iface, int channel_idx,
- struct most_channel_config *channel_config);
- int (*enqueue)(struct most_interface *iface, int channel_idx,
- struct mbo *mbo);
- int (*poison_channel)(struct most_interface *iface, int channel_idx);
- void (*request_netinfo)(struct most_interface *iface, int channel_idx,
- void (*on_netinfo)(struct most_interface *iface,
- unsigned char link_stat,
- unsigned char *mac_addr));
- void *priv;
- struct interface_private *p;
-};
-
-/**
- * struct most_component - identifies a loadable component for the mostcore
- * @list: list_head
- * @name: component name
- * @probe_channel: function for core to notify driver about channel connection
- * @disconnect_channel: callback function to disconnect a certain channel
- * @rx_completion: completion handler for received packets
- * @tx_completion: completion handler for transmitted packets
- */
-struct most_component {
- struct list_head list;
- const char *name;
- struct module *mod;
- int (*probe_channel)(struct most_interface *iface, int channel_idx,
- struct most_channel_config *cfg, char *name,
- char *param);
- int (*disconnect_channel)(struct most_interface *iface,
- int channel_idx);
- int (*rx_completion)(struct mbo *mbo);
- int (*tx_completion)(struct most_interface *iface, int channel_idx);
- int (*cfg_complete)(void);
-};
-
-/**
- * most_register_interface - Registers instance of the interface.
- * @iface: Pointer to the interface instance description.
- *
- * Returns a pointer to the kobject of the generated instance.
- *
- * Note: HDM has to ensure that any reference held on the kobj is
- * released before deregistering the interface.
- */
-int most_register_interface(struct most_interface *iface);
-
-/**
- * Deregisters instance of the interface.
- * @intf_instance Pointer to the interface instance description.
- */
-void most_deregister_interface(struct most_interface *iface);
-void most_submit_mbo(struct mbo *mbo);
-
-/**
- * most_stop_enqueue - prevents core from enqueing MBOs
- * @iface: pointer to interface
- * @channel_idx: channel index
- */
-void most_stop_enqueue(struct most_interface *iface, int channel_idx);
-
-/**
- * most_resume_enqueue - allow core to enqueue MBOs again
- * @iface: pointer to interface
- * @channel_idx: channel index
- *
- * This clears the enqueue halt flag and enqueues all MBOs currently
- * in wait fifo.
- */
-void most_resume_enqueue(struct most_interface *iface, int channel_idx);
-int most_register_component(struct most_component *comp);
-int most_deregister_component(struct most_component *comp);
-struct mbo *most_get_mbo(struct most_interface *iface, int channel_idx,
- struct most_component *comp);
-void most_put_mbo(struct mbo *mbo);
-int channel_has_mbo(struct most_interface *iface, int channel_idx,
- struct most_component *comp);
-int most_start_channel(struct most_interface *iface, int channel_idx,
- struct most_component *comp);
-int most_stop_channel(struct most_interface *iface, int channel_idx,
- struct most_component *comp);
-int __init configfs_init(void);
-int most_register_configfs_subsys(struct most_component *comp);
-void most_deregister_configfs_subsys(struct most_component *comp);
-int most_add_link(char *mdev, char *mdev_ch, char *comp_name, char *link_name,
- char *comp_param);
-int most_remove_link(char *mdev, char *mdev_ch, char *comp_name);
-int most_set_cfg_buffer_size(char *mdev, char *mdev_ch, u16 val);
-int most_set_cfg_subbuffer_size(char *mdev, char *mdev_ch, u16 val);
-int most_set_cfg_dbr_size(char *mdev, char *mdev_ch, u16 val);
-int most_set_cfg_num_buffers(char *mdev, char *mdev_ch, u16 val);
-int most_set_cfg_datatype(char *mdev, char *mdev_ch, char *buf);
-int most_set_cfg_direction(char *mdev, char *mdev_ch, char *buf);
-int most_set_cfg_packets_xact(char *mdev, char *mdev_ch, u16 val);
-int most_cfg_complete(char *comp_name);
-void most_interface_register_notify(const char *mdev_name);
-#endif /* MOST_CORE_H_ */
diff --git a/drivers/staging/most/net/net.c b/drivers/staging/most/net/net.c
index 5547e36e09de..830f089f1a88 100644
--- a/drivers/staging/most/net/net.c
+++ b/drivers/staging/most/net/net.c
@@ -15,8 +15,7 @@
#include <linux/list.h>
#include <linux/wait.h>
#include <linux/kobject.h>
-
-#include "../most.h"
+#include <linux/most.h>
#define MEP_HDR_LEN 8
#define MDP_HDR_LEN 16
diff --git a/drivers/staging/most/sound/sound.c b/drivers/staging/most/sound/sound.c
index 44cf2334834f..1527f410af2b 100644
--- a/drivers/staging/most/sound/sound.c
+++ b/drivers/staging/most/sound/sound.c
@@ -17,8 +17,7 @@
#include <sound/pcm_params.h>
#include <linux/sched.h>
#include <linux/kthread.h>
-
-#include "../most.h"
+#include <linux/most.h>
#define DRIVER_NAME "sound"
#define STRING_SIZE 80
diff --git a/drivers/staging/most/usb/usb.c b/drivers/staging/most/usb/usb.c
index 0bda88c4bc89..e8c5a8c98375 100644
--- a/drivers/staging/most/usb/usb.c
+++ b/drivers/staging/most/usb/usb.c
@@ -23,8 +23,7 @@
#include <linux/dma-mapping.h>
#include <linux/etherdevice.h>
#include <linux/uaccess.h>
-
-#include "../most.h"
+#include <linux/most.h>
#define USB_MTU 512
#define NO_ISOCHRONOUS_URB 0
diff --git a/drivers/staging/most/video/video.c b/drivers/staging/most/video/video.c
index d32ae49d617b..20d177aaec44 100644
--- a/drivers/staging/most/video/video.c
+++ b/drivers/staging/most/video/video.c
@@ -20,8 +20,7 @@
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-fh.h>
-
-#include "../most.h"
+#include <linux/most.h>
#define V4L2_CMP_MAX_INPUT 1