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/* SPDX-License-Identifier: GPL-2.0 */
/* CAN bus driver for Microchip 25XXFD CAN Controller with SPI Interface
*
* Copyright 2019 Martin Sperl <kernel@martin.sperl.org>
*/
#ifndef __MCP25XXFD_CAN_H
#define __MCP25XXFD_CAN_H
#include "mcp25xxfd_can_debugfs.h"
#include "mcp25xxfd_can_priv.h"
#include "mcp25xxfd_priv.h"
#include "mcp25xxfd_regs.h"
/* get the optimal controller target mode */
static inline
int mcp25xxfd_can_targetmode(struct mcp25xxfd_can_priv *cpriv)
{
return (cpriv->can.dev->mtu == CAN_MTU) ?
MCP25XXFD_CAN_CON_MODE_CAN2_0 : MCP25XXFD_CAN_CON_MODE_MIXED;
}
static inline
void mcp25xxfd_can_queue_frame(struct mcp25xxfd_can_priv *cpriv,
s32 fifo, u32 ts, bool is_rx)
{
int idx = cpriv->fifos.submit_queue_count;
cpriv->fifos.submit_queue[idx].fifo = fifo;
cpriv->fifos.submit_queue[idx].ts = ts;
cpriv->fifos.submit_queue[idx].is_rx = is_rx;
cpriv->fifos.submit_queue_count++;
}
/* get the current controller mode */
int mcp25xxfd_can_get_mode(struct mcp25xxfd_priv *priv, u32 *reg);
/* to put us to sleep fully we need the CAN controller to enter sleep mode */
int mcp25xxfd_can_sleep_mode(struct mcp25xxfd_priv *priv);
/* switch controller mode */
int mcp25xxfd_can_switch_mode_no_wait(struct mcp25xxfd_priv *priv,
u32 *reg, int mode);
int mcp25xxfd_can_switch_mode(struct mcp25xxfd_priv *priv,
u32 *reg, int mode);
/* probe the can controller */
int mcp25xxfd_can_probe(struct mcp25xxfd_priv *priv);
/* setup and the can controller net interface */
int mcp25xxfd_can_setup(struct mcp25xxfd_priv *priv);
void mcp25xxfd_can_remove(struct mcp25xxfd_priv *priv);
#endif /* __MCP25XXFD_CAN_H */
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