From: Marc Kleine-Budde <mkl@pengutronix.de>
To: linux-can@vger.kernel.org
Cc: kernel@pengutronix.de,
Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>,
Marc Kleine-Budde <mkl@pengutronix.de>
Subject: [PATCH 36/37] can: mcp25xxfd: add listen-only mode
Date: Wed, 16 Sep 2020 00:35:26 +0200 [thread overview]
Message-ID: <20200915223527.1417033-37-mkl@pengutronix.de> (raw)
In-Reply-To: <20200915223527.1417033-1-mkl@pengutronix.de>
From: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
This commit enables listen-only mode, which works internally like CANFD mode.
Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
drivers/net/can/spi/mcp25xxfd/mcp25xxfd-core.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/drivers/net/can/spi/mcp25xxfd/mcp25xxfd-core.c b/drivers/net/can/spi/mcp25xxfd/mcp25xxfd-core.c
index 043259b3e04e..6ffa7af50119 100644
--- a/drivers/net/can/spi/mcp25xxfd/mcp25xxfd-core.c
+++ b/drivers/net/can/spi/mcp25xxfd/mcp25xxfd-core.c
@@ -392,7 +392,8 @@ static int mcp25xxfd_ring_alloc(struct mcp25xxfd_priv *priv)
int ram_free, i;
tef_obj_size = sizeof(struct mcp25xxfd_hw_tef_obj);
- if (priv->can.ctrlmode & CAN_CTRLMODE_FD) {
+ /* listen-only mode works like FD mode */
+ if (priv->can.ctrlmode & (CAN_CTRLMODE_LISTENONLY | CAN_CTRLMODE_FD)) {
tx_obj_num = MCP25XXFD_TX_OBJ_NUM_CANFD;
tx_obj_size = sizeof(struct mcp25xxfd_hw_tx_obj_canfd);
rx_obj_size = sizeof(struct mcp25xxfd_hw_rx_obj_canfd);
@@ -807,7 +808,7 @@ mcp25xxfd_chip_rx_fifo_init_one(const struct mcp25xxfd_priv *priv,
MCP25XXFD_REG_FIFOCON_RXOVIE |
MCP25XXFD_REG_FIFOCON_TFNRFNIE;
- if (priv->can.ctrlmode & CAN_CTRLMODE_FD)
+ if (priv->can.ctrlmode & (CAN_CTRLMODE_LISTENONLY | CAN_CTRLMODE_FD))
fifo_con |= FIELD_PREP(MCP25XXFD_REG_FIFOCON_PLSIZE_MASK,
MCP25XXFD_REG_FIFOCON_PLSIZE_64);
else
@@ -857,7 +858,7 @@ static int mcp25xxfd_chip_fifo_init(const struct mcp25xxfd_priv *priv)
MCP25XXFD_REG_FIFOCON_TXEN |
MCP25XXFD_REG_FIFOCON_TXATIE;
- if (priv->can.ctrlmode & CAN_CTRLMODE_FD)
+ if (priv->can.ctrlmode & (CAN_CTRLMODE_LISTENONLY | CAN_CTRLMODE_FD))
val |= FIELD_PREP(MCP25XXFD_REG_FIFOCON_PLSIZE_MASK,
MCP25XXFD_REG_FIFOCON_PLSIZE_64);
else
@@ -930,7 +931,9 @@ static u8 mcp25xxfd_get_normal_mode(const struct mcp25xxfd_priv *priv)
{
u8 mode;
- if (priv->can.ctrlmode & CAN_CTRLMODE_FD)
+ if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
+ mode = MCP25XXFD_REG_CON_MODE_LISTENONLY;
+ else if (priv->can.ctrlmode & CAN_CTRLMODE_FD)
mode = MCP25XXFD_REG_CON_MODE_MIXED;
else
mode = MCP25XXFD_REG_CON_MODE_CAN2_0;
@@ -2787,8 +2790,9 @@ static int mcp25xxfd_probe(struct spi_device *spi)
priv->can.do_get_berr_counter = mcp25xxfd_get_berr_counter;
priv->can.bittiming_const = &mcp25xxfd_bittiming_const;
priv->can.data_bittiming_const = &mcp25xxfd_data_bittiming_const;
- priv->can.ctrlmode_supported = CAN_CTRLMODE_BERR_REPORTING |
- CAN_CTRLMODE_FD | CAN_CTRLMODE_FD_NON_ISO;
+ priv->can.ctrlmode_supported = CAN_CTRLMODE_LISTENONLY |
+ CAN_CTRLMODE_BERR_REPORTING | CAN_CTRLMODE_FD |
+ CAN_CTRLMODE_FD_NON_ISO;
priv->ndev = ndev;
priv->spi = spi;
priv->rx_int = rx_int;
--
2.28.0
next prev parent reply other threads:[~2020-09-15 22:37 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-15 22:34 [RFC]: can-next 2020-09-16 Marc Kleine-Budde
2020-09-15 22:34 ` [PATCH 01/37] can: grcan: fix spelling mistake "buss" -> "bus" Marc Kleine-Budde
2020-09-15 22:34 ` [PATCH 02/37] can: flexcan: fix spelling mistake "reserverd" -> "reserved" Marc Kleine-Budde
2020-09-15 22:34 ` [PATCH 03/37] can: include: fix spelling mistakes Marc Kleine-Budde
2020-09-15 22:34 ` [PATCH 04/37] can: net: " Marc Kleine-Budde
2020-09-15 22:34 ` [PATCH 05/37] can: drivers: " Marc Kleine-Budde
2020-09-15 22:34 ` [PATCH 06/37] can: raw: fix indention Marc Kleine-Budde
2020-09-15 22:34 ` [PATCH 07/37] can: slcan: update dead link Marc Kleine-Budde
2020-09-15 22:34 ` [PATCH 08/37] can: softing: " Marc Kleine-Budde
2020-09-15 22:34 ` [PATCH 09/37] can: remove "WITH Linux-syscall-note" from SPDX tag of C files Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 10/37] can: dev: can_put_echo_skb(): print number of echo_skb that is occupied Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 11/37] can: dev: can_put_echo_skb(): propagate error in case of errors Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 12/37] can: dev: can_change_state(): print human readable state change messages Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 13/37] can: dev: can_bus_off(): print scheduling of restart if activated Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 14/37] can: c_can: Remove unused inline function Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 15/37] can: mcba_usb: remove redundant initialization of variable err Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 16/37] can: mscan: mark expected switch fall-through Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 17/37] can: ti_hecc: convert to devm_platform_ioremap_resource_byname() Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 18/37] can: peak_usb: convert to use le32_add_cpu() Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 19/37] can: peak_canfd: Remove unused macros Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 20/37] can: pch_can: use generic power management Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 21/37] can: pcan_usb: Document the commands sent to the device Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 22/37] can: pcan_usb: add support of rxerr/txerr counters Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 23/37] can: spi: Kconfig: remove unneeded dependencies form Kconfig symbols Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 24/37] dt-bindings: can: mcp251x: change example interrupt type to IRQ_TYPE_LEVEL_LOW Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 25/37] dt-bindings: can: mcp251x: document GPIO support Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 26/37] can: mcp251x: sort include files alphabetically Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 27/37] can: mcp251x: add GPIO support Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 28/37] can: mcp251x: Use readx_poll_timeout() helper Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 29/37] can: mcp251x: add support for half duplex controllers Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 30/37] can: mscan: mpc5xxx_can: update contact email Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 31/37] can: mscan: simplify clock enable/disable Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 32/37] can: rx-offload: can_rx_offload_add_manual(): add new initialization function Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 33/37] dt-binding: can: mcp25xxfd: document device tree bindings Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 34/37] can: mcp25xxfd: add regmap infrastructure Marc Kleine-Budde
2020-09-15 22:35 ` [PATCH 35/37] can: mcp25xxfd: add driver for Microchip MCP25xxFD SPI CAN Marc Kleine-Budde
2020-09-15 22:35 ` Marc Kleine-Budde [this message]
2020-09-15 22:35 ` [PATCH 37/37] MAINTAINERS: Add entry for Microchip MCP25XXFD SPI-CAN network driver Marc Kleine-Budde
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