drivers: soc: qcom: Add bam dmux driver support
Added snapshot of mdm9607 bam dmux driver as of msm-3.18.c8 commit 69da6b6721b. Change-Id: Ic90c01188cfc0e027b215a3818119998be733a36 Signed-off-by: Prasadarao Durvasula <pdurvasu@codeaurora.org> Signed-off-by: Sivasri Kumar Vanka <sivasri@codeaurora.org> Signed-off-by: Swetha Chikkaboraiah <schikk@codeaurora.org>
This commit is contained in:
Prasadarao Durvasula
Gerrit - the friendly Code Review server
parent
0086d774a8
commit
d60566d6d0
@ -904,6 +904,16 @@ config QTI_CRYPTO_TZ
|
||||
performing hardware based file encryption. This means keys are
|
||||
programmed and managed through SCM calls to TZ where ICE driver
|
||||
will configure keys.
|
||||
|
||||
config MSM_BAM_DMUX
|
||||
bool "BAM Data Mux Driver"
|
||||
depends on SPS
|
||||
help
|
||||
Support Muxed Data Channels over BAM interface.
|
||||
BAM has a limited number of pipes. This driver
|
||||
provides a means to support more logical channels
|
||||
via muxing than BAM could without muxing.
|
||||
|
||||
endmenu
|
||||
|
||||
config QCOM_HYP_CORE_CTL
|
||||
|
||||
@ -107,3 +107,4 @@ obj-$(CONFIG_QTI_CRYPTO_COMMON) += crypto-qti-common.o
|
||||
obj-$(CONFIG_QTI_CRYPTO_TZ) += crypto-qti-tz.o
|
||||
obj-$(CONFIG_QTI_HW_KEY_MANAGER) += hwkm_qti.o
|
||||
hwkm_qti-y += hwkm.o
|
||||
obj-$(CONFIG_MSM_BAM_DMUX) += bam_dmux.o
|
||||
|
||||
2864
drivers/soc/qcom/bam_dmux.c
Normal file
2864
drivers/soc/qcom/bam_dmux.c
Normal file
File diff suppressed because it is too large
Load Diff
183
drivers/soc/qcom/bam_dmux_private.h
Normal file
183
drivers/soc/qcom/bam_dmux_private.h
Normal file
@ -0,0 +1,183 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-only */
|
||||
/* Copyright (c) 2013-2014, 2019 The Linux Foundation. All rights reserved.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 and
|
||||
* only version 2 as published by the Free Software Foundation.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef _BAM_DMUX_PRIVATE_H
|
||||
#define _BAM_DMUX_PRIVATE_H
|
||||
|
||||
#include <linux/types.h>
|
||||
#include <linux/dma-mapping.h>
|
||||
|
||||
#include <linux/msm-sps.h>
|
||||
|
||||
#define BAM_MUX_HDR_MAGIC_NO 0x33fc
|
||||
#define BAM_MUX_HDR_CMD_DATA 0
|
||||
#define BAM_MUX_HDR_CMD_OPEN 1
|
||||
#define BAM_MUX_HDR_CMD_CLOSE 2
|
||||
#define BAM_MUX_HDR_CMD_STATUS 3 /* unused */
|
||||
#define BAM_MUX_HDR_CMD_OPEN_NO_A2_PC 4
|
||||
#define DEFAULT_BUFFER_SIZE SZ_2K
|
||||
|
||||
#define DYNAMIC_MTU_MASK 0x2
|
||||
#define MTU_SIZE_MASK 0xc0
|
||||
#define MTU_SIZE_SHIFT 0x6
|
||||
#define DL_POOL_SIZE_SHIFT 0x4
|
||||
|
||||
/**
|
||||
* struct bam_ops_if - collection of function pointers to allow swappable
|
||||
* runtime functionality
|
||||
* @smsm_change_state_ptr: pointer to smsm_change_state function
|
||||
* @smsm_get_state_ptr: pointer to smsm_get_state function
|
||||
* @smsm_state_cb_register_ptr: pointer to smsm_state_cb_register function
|
||||
* @smsm_state_cb_deregister_ptr: pointer to smsm_state_cb_deregister function
|
||||
* @sps_connect_ptr: pointer to sps_connect function
|
||||
* @sps_disconnect_ptr: pointer to sps_disconnect function
|
||||
* @sps_register_bam_device_ptr: pointer to sps_register_bam_device
|
||||
* @sps_deregister_bam_device_ptr: pointer to sps_deregister_bam_device
|
||||
* function
|
||||
* @sps_alloc_endpoint_ptr: pointer to sps_alloc_endpoint function
|
||||
* @sps_free_endpoint_ptr: pointer to sps_free_endpoint function
|
||||
* @sps_set_config_ptr: pointer to sps_set_config function
|
||||
* @sps_get_config_ptr: pointer to sps_get_config function
|
||||
* @sps_device_reset_ptr: pointer to sps_device_reset function
|
||||
* @sps_register_event_ptr: pointer to sps_register_event function
|
||||
* @sps_transfer_one_ptr: pointer to sps_transfer_one function
|
||||
* @sps_get_iovec_ptr: pointer to sps_get_iovec function
|
||||
* @sps_get_unused_desc_num_ptr: pointer to sps_get_unused_desc_num function
|
||||
* @dma_to: enum for the direction of dma operations to device
|
||||
* @dma_from: enum for the direction of dma operations from device
|
||||
*
|
||||
* This struct contains the interface from bam_dmux to smsm and sps. The
|
||||
* pointers can be swapped out at run time to provide different functionality.
|
||||
*/
|
||||
struct bam_ops_if {
|
||||
/* smsm */
|
||||
int (*smsm_change_state_ptr)(uint32_t smsm_entry,
|
||||
uint32_t clear_mask, uint32_t set_mask);
|
||||
|
||||
uint32_t (*smsm_get_state_ptr)(uint32_t smsm_entry);
|
||||
|
||||
int (*smsm_state_cb_register_ptr)(uint32_t smsm_entry, uint32_t mask,
|
||||
void (*notify)(void *, uint32_t old_state, uint32_t new_state),
|
||||
void *data);
|
||||
|
||||
int (*smsm_state_cb_deregister_ptr)(uint32_t smsm_entry, uint32_t mask,
|
||||
void (*notify)(void *, uint32_t, uint32_t), void *data);
|
||||
|
||||
/* sps */
|
||||
int (*sps_connect_ptr)(struct sps_pipe *h, struct sps_connect *connect);
|
||||
|
||||
int (*sps_disconnect_ptr)(struct sps_pipe *h);
|
||||
|
||||
int (*sps_register_bam_device_ptr)(
|
||||
const struct sps_bam_props *bam_props,
|
||||
unsigned long *dev_handle);
|
||||
|
||||
int (*sps_deregister_bam_device_ptr)(unsigned long dev_handle);
|
||||
|
||||
struct sps_pipe *(*sps_alloc_endpoint_ptr)(void);
|
||||
|
||||
int (*sps_free_endpoint_ptr)(struct sps_pipe *h);
|
||||
|
||||
int (*sps_set_config_ptr)(struct sps_pipe *h,
|
||||
struct sps_connect *config);
|
||||
|
||||
int (*sps_get_config_ptr)(struct sps_pipe *h,
|
||||
struct sps_connect *config);
|
||||
|
||||
int (*sps_device_reset_ptr)(unsigned long dev);
|
||||
|
||||
int (*sps_register_event_ptr)(struct sps_pipe *h,
|
||||
struct sps_register_event *reg);
|
||||
|
||||
int (*sps_transfer_one_ptr)(struct sps_pipe *h,
|
||||
phys_addr_t addr, u32 size,
|
||||
void *user, u32 flags);
|
||||
|
||||
int (*sps_get_iovec_ptr)(struct sps_pipe *h,
|
||||
struct sps_iovec *iovec);
|
||||
|
||||
int (*sps_get_unused_desc_num_ptr)(struct sps_pipe *h,
|
||||
u32 *desc_num);
|
||||
|
||||
enum dma_data_direction dma_to;
|
||||
|
||||
enum dma_data_direction dma_from;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct bam_mux_hdr - struct which contains bam dmux header info
|
||||
* @magic_num: magic number placed at start to ensure that it is actually a
|
||||
* valid bam dmux header
|
||||
* @signal: optional signaling bits with commmand type specific definitions
|
||||
* @cmd: the command
|
||||
* @pad_len: the length of padding
|
||||
* @ch_id: the id of the bam dmux channel that this is sent on
|
||||
* @pkt_len: the length of the packet that this is the header of
|
||||
*/
|
||||
struct bam_mux_hdr {
|
||||
uint16_t magic_num;
|
||||
uint8_t signal;
|
||||
uint8_t cmd;
|
||||
uint8_t pad_len;
|
||||
uint8_t ch_id;
|
||||
uint16_t pkt_len;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct rx_pkt_info - struct describing an rx packet
|
||||
* @skb: socket buffer containing the packet
|
||||
* @dma_address: dma mapped address of the packet
|
||||
* @work: work_struct for processing the packet
|
||||
* @list_node: list_head for placing this on a list
|
||||
* @sps_size: size of the sps_iovec for this packet
|
||||
* @len: total length of the buffer containing this packet
|
||||
*/
|
||||
struct rx_pkt_info {
|
||||
struct sk_buff *skb;
|
||||
dma_addr_t dma_address;
|
||||
struct work_struct work;
|
||||
struct list_head list_node;
|
||||
uint16_t sps_size;
|
||||
uint16_t len;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct tx_pkt_info - struct describing a tx packet
|
||||
* @skb: socket buffer containing the packet
|
||||
* @dma_address: dma mapped address of the packet
|
||||
* @is_cmd: signifies whether this is a command or data packet
|
||||
* @len: length og the packet
|
||||
* @work: work_struct for processing this packet
|
||||
* @list_node: list_head for placing this on a list
|
||||
* @ts_sec: seconds portion of the timestamp
|
||||
* @ts_nsec: nanoseconds portion of the timestamp
|
||||
*
|
||||
*/
|
||||
struct tx_pkt_info {
|
||||
struct sk_buff *skb;
|
||||
dma_addr_t dma_address;
|
||||
char is_cmd;
|
||||
uint32_t len;
|
||||
struct work_struct work;
|
||||
struct list_head list_node;
|
||||
unsigned int ts_sec;
|
||||
unsigned long ts_nsec;
|
||||
};
|
||||
|
||||
void msm_bam_dmux_set_bam_ops(struct bam_ops_if *ops);
|
||||
|
||||
void msm_bam_dmux_deinit(void);
|
||||
|
||||
void msm_bam_dmux_reinit(void);
|
||||
|
||||
#endif /* _BAM_DMUX_PRIVATE_H */
|
||||
139
include/soc/qcom/bam_dmux.h
Normal file
139
include/soc/qcom/bam_dmux.h
Normal file
@ -0,0 +1,139 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-only */
|
||||
/* Copyright (c) 2011-2012, 2014, 2019 The Linux Foundation. All rights reserved.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 and
|
||||
* only version 2 as published by the Free Software Foundation.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include <linux/types.h>
|
||||
#include <linux/skbuff.h>
|
||||
|
||||
#ifndef _BAM_DMUX_H
|
||||
#define _BAM_DMUX_H
|
||||
|
||||
#define BAM_DMUX_CH_NAME_MAX_LEN 20
|
||||
|
||||
enum {
|
||||
BAM_DMUX_DATA_RMNET_0,
|
||||
BAM_DMUX_DATA_RMNET_1,
|
||||
BAM_DMUX_DATA_RMNET_2,
|
||||
BAM_DMUX_DATA_RMNET_3,
|
||||
BAM_DMUX_DATA_RMNET_4,
|
||||
BAM_DMUX_DATA_RMNET_5,
|
||||
BAM_DMUX_DATA_RMNET_6,
|
||||
BAM_DMUX_DATA_RMNET_7,
|
||||
BAM_DMUX_USB_RMNET_0,
|
||||
BAM_DMUX_RESERVED_0, /* 9..11 are reserved*/
|
||||
BAM_DMUX_RESERVED_1,
|
||||
BAM_DMUX_RESERVED_2,
|
||||
BAM_DMUX_DATA_REV_RMNET_0,
|
||||
BAM_DMUX_DATA_REV_RMNET_1,
|
||||
BAM_DMUX_DATA_REV_RMNET_2,
|
||||
BAM_DMUX_DATA_REV_RMNET_3,
|
||||
BAM_DMUX_DATA_REV_RMNET_4,
|
||||
BAM_DMUX_DATA_REV_RMNET_5,
|
||||
BAM_DMUX_DATA_REV_RMNET_6,
|
||||
BAM_DMUX_DATA_REV_RMNET_7,
|
||||
BAM_DMUX_DATA_REV_RMNET_8,
|
||||
BAM_DMUX_USB_DPL,
|
||||
BAM_DMUX_NUM_CHANNELS
|
||||
};
|
||||
|
||||
/* event type enum */
|
||||
enum {
|
||||
BAM_DMUX_RECEIVE, /* data is struct sk_buff */
|
||||
BAM_DMUX_WRITE_DONE, /* data is struct sk_buff */
|
||||
BAM_DMUX_UL_CONNECTED, /* data is null */
|
||||
BAM_DMUX_UL_DISCONNECTED, /*data is null */
|
||||
BAM_DMUX_TRANSMIT_SIZE, /* data is maximum negotiated transmit MTU */
|
||||
};
|
||||
|
||||
/*
|
||||
* Open a bam_dmux logical channel
|
||||
* id - the logical channel to open
|
||||
* priv - private data pointer to be passed to the notify callback
|
||||
* notify - event callback function
|
||||
* priv - private data pointer passed to msm_bam_dmux_open()
|
||||
* event_type - type of event
|
||||
* data - data relevant to event. May not be valid. See event_type
|
||||
* enum for valid cases.
|
||||
*/
|
||||
#ifdef CONFIG_MSM_BAM_DMUX
|
||||
int msm_bam_dmux_open(uint32_t id, void *priv,
|
||||
void (*notify)(void *priv, int event_type,
|
||||
unsigned long data));
|
||||
|
||||
int msm_bam_dmux_close(uint32_t id);
|
||||
|
||||
int msm_bam_dmux_write(uint32_t id, struct sk_buff *skb);
|
||||
|
||||
int msm_bam_dmux_kickoff_ul_wakeup(void);
|
||||
|
||||
int msm_bam_dmux_ul_power_vote(void);
|
||||
|
||||
int msm_bam_dmux_ul_power_unvote(void);
|
||||
|
||||
int msm_bam_dmux_is_ch_full(uint32_t id);
|
||||
|
||||
int msm_bam_dmux_is_ch_low(uint32_t id);
|
||||
|
||||
int msm_bam_dmux_reg_notify(void *priv,
|
||||
void (*notify)(void *priv, int event_type,
|
||||
unsigned long data));
|
||||
#else
|
||||
static inline int msm_bam_dmux_open(uint32_t id, void *priv,
|
||||
void (*notify)(void *priv, int event_type,
|
||||
unsigned long data))
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline int msm_bam_dmux_close(uint32_t id)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline int msm_bam_dmux_write(uint32_t id, struct sk_buff *skb)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline int msm_bam_dmux_kickoff_ul_wakeup(void)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline int msm_bam_dmux_ul_power_vote(void)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline int msm_bam_dmux_ul_power_unvote(void)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline int msm_bam_dmux_is_ch_full(uint32_t id)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline int msm_bam_dmux_is_ch_low(uint32_t id)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline int msm_bam_dmux_reg_notify(void *priv,
|
||||
void (*notify)(void *priv, int event_type,
|
||||
unsigned long data))
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
#endif
|
||||
#endif /* _BAM_DMUX_H */
|
||||
Loading…
Reference in New Issue
Block a user