diff options
Diffstat (limited to 'drivers/net/can/spi/mcp25xxfd/mcp25xxfd_can.h')
-rw-r--r-- | drivers/net/can/spi/mcp25xxfd/mcp25xxfd_can.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/net/can/spi/mcp25xxfd/mcp25xxfd_can.h b/drivers/net/can/spi/mcp25xxfd/mcp25xxfd_can.h new file mode 100644 index 000000000000..6fca746d2dd5 --- /dev/null +++ b/drivers/net/can/spi/mcp25xxfd/mcp25xxfd_can.h @@ -0,0 +1,56 @@ +/* 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 */ |