linux/drivers/cdx/controller/mcdi_functions.h
Linus Torvalds d99b91a99b Char/Misc and other driver changes for 6.7-rc1
Here is the big set of char/misc and other small driver subsystem
 changes for 6.7-rc1.  Included in here are:
   - IIO subsystem driver updates and additions (largest part of this
     pull request)
   - FPGA subsystem driver updates
   - Counter subsystem driver updates
   - ICC subsystem driver updates
   - extcon subsystem driver updates
   - mei driver updates and additions
   - nvmem subsystem driver updates and additions
   - comedi subsystem dependency fixes
   - parport driver fixups
   - cdx subsystem driver and core updates
   - splice support for /dev/zero and /dev/full
   - other smaller driver cleanups
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc updates from Greg KH:
 "Here is the big set of char/misc and other small driver subsystem
  changes for 6.7-rc1. Included in here are:

   - IIO subsystem driver updates and additions (largest part of this
     pull request)

   - FPGA subsystem driver updates

   - Counter subsystem driver updates

   - ICC subsystem driver updates

   - extcon subsystem driver updates

   - mei driver updates and additions

   - nvmem subsystem driver updates and additions

   - comedi subsystem dependency fixes

   - parport driver fixups

   - cdx subsystem driver and core updates

   - splice support for /dev/zero and /dev/full

   - other smaller driver cleanups

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (326 commits)
  cdx: add sysfs for subsystem, class and revision
  cdx: add sysfs for bus reset
  cdx: add support for bus enable and disable
  cdx: Register cdx bus as a device on cdx subsystem
  cdx: Create symbol namespaces for cdx subsystem
  cdx: Introduce lock to protect controller ops
  cdx: Remove cdx controller list from cdx bus system
  dts: ti: k3-am625-beagleplay: Add beaglecc1352
  greybus: Add BeaglePlay Linux Driver
  dt-bindings: net: Add ti,cc1352p7
  dt-bindings: eeprom: at24: allow NVMEM cells based on old syntax
  dt-bindings: nvmem: SID: allow NVMEM cells based on old syntax
  Revert "nvmem: add new config option"
  MAINTAINERS: coresight: Add missing Coresight files
  misc: pci_endpoint_test: Add deviceID for J721S2 PCIe EP device support
  firmware: xilinx: Move EXPORT_SYMBOL_GPL next to zynqmp_pm_feature definition
  uacce: make uacce_class constant
  ocxl: make ocxl_class constant
  cxl: make cxl_class constant
  misc: phantom: make phantom_class constant
  ...
2023-11-03 14:51:08 -10:00

93 lines
2.5 KiB
C

/* SPDX-License-Identifier: GPL-2.0
*
* Header file for MCDI FW interaction for CDX bus.
*
* Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
*/
#ifndef CDX_MCDI_FUNCTIONS_H
#define CDX_MCDI_FUNCTIONS_H
#include "mcdi.h"
#include "../cdx.h"
/**
* cdx_mcdi_get_num_buses - Get the total number of buses on
* the controller.
* @cdx: pointer to MCDI interface.
*
* Return: total number of buses available on the controller,
* <0 on failure
*/
int cdx_mcdi_get_num_buses(struct cdx_mcdi *cdx);
/**
* cdx_mcdi_get_num_devs - Get the total number of devices on
* a particular bus of the controller.
* @cdx: pointer to MCDI interface.
* @bus_num: Bus number.
*
* Return: total number of devices available on the bus, <0 on failure
*/
int cdx_mcdi_get_num_devs(struct cdx_mcdi *cdx, int bus_num);
/**
* cdx_mcdi_get_dev_config - Get configuration for a particular
* bus_num:dev_num
* @cdx: pointer to MCDI interface.
* @bus_num: Bus number.
* @dev_num: Device number.
* @dev_params: Pointer to cdx_dev_params, this is populated by this
* device with the configuration corresponding to the provided
* bus_num:dev_num.
*
* Return: 0 total number of devices available on the bus, <0 on failure
*/
int cdx_mcdi_get_dev_config(struct cdx_mcdi *cdx,
u8 bus_num, u8 dev_num,
struct cdx_dev_params *dev_params);
/**
* cdx_mcdi_bus_enable - Enable CDX bus represented by bus_num
* @cdx: pointer to MCDI interface.
* @bus_num: Bus number.
*
* Return: 0 on success, <0 on failure
*/
int cdx_mcdi_bus_enable(struct cdx_mcdi *cdx, u8 bus_num);
/**
* cdx_mcdi_bus_disable - Disable CDX bus represented by bus_num
* @cdx: pointer to MCDI interface.
* @bus_num: Bus number.
*
* Return: 0 on success, <0 on failure
*/
int cdx_mcdi_bus_disable(struct cdx_mcdi *cdx, u8 bus_num);
/**
* cdx_mcdi_reset_device - Reset cdx device represented by bus_num:dev_num
* @cdx: pointer to MCDI interface.
* @bus_num: Bus number.
* @dev_num: Device number.
*
* Return: 0 on success, <0 on failure
*/
int cdx_mcdi_reset_device(struct cdx_mcdi *cdx,
u8 bus_num, u8 dev_num);
/**
* cdx_mcdi_bus_master_enable - Set/Reset bus mastering for cdx device
* represented by bus_num:dev_num
* @cdx: pointer to MCDI interface.
* @bus_num: Bus number.
* @dev_num: Device number.
* @enable: Enable bus mastering if set, disable otherwise.
*
* Return: 0 on success, <0 on failure
*/
int cdx_mcdi_bus_master_enable(struct cdx_mcdi *cdx, u8 bus_num,
u8 dev_num, bool enable);
#endif /* CDX_MCDI_FUNCTIONS_H */