| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | # SPDX-License-Identifier: GPL-2.0-only |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | # |
| 3 | # CAIF physical drivers |
| 4 | # |
| 5 | |
| 6 | comment "CAIF transport drivers" |
| 7 | |
| 8 | config CAIF_TTY |
| 9 | tristate "CAIF TTY transport driver" |
| 10 | depends on CAIF && TTY |
| 11 | default n |
| 12 | ---help--- |
| 13 | The CAIF TTY transport driver is a Line Discipline (ldisc) |
| 14 | identified as N_CAIF. When this ldisc is opened from user space |
| 15 | it will redirect the TTY's traffic into the CAIF stack. |
| 16 | |
| 17 | config CAIF_SPI_SLAVE |
| 18 | tristate "CAIF SPI transport driver for slave interface" |
| 19 | depends on CAIF && HAS_DMA |
| 20 | default n |
| 21 | ---help--- |
| 22 | The CAIF Link layer SPI Protocol driver for Slave SPI interface. |
| 23 | This driver implements a platform driver to accommodate for a |
| 24 | platform specific SPI device. A sample CAIF SPI Platform device is |
| 25 | provided in Documentation/networking/caif/spi_porting.txt |
| 26 | |
| 27 | config CAIF_SPI_SYNC |
| 28 | bool "Next command and length in start of frame" |
| 29 | depends on CAIF_SPI_SLAVE |
| 30 | default n |
| 31 | ---help--- |
| 32 | Putting the next command and length in the start of the frame can |
| 33 | help to synchronize to the next transfer in case of over or under-runs. |
| 34 | This option also needs to be enabled on the modem. |
| 35 | |
| 36 | config CAIF_HSI |
| 37 | tristate "CAIF HSI transport driver" |
| 38 | depends on CAIF |
| 39 | default n |
| 40 | ---help--- |
| 41 | The caif low level driver for CAIF over HSI. |
| 42 | Be aware that if you enable this then you also need to |
| 43 | enable a low-level HSI driver. |
| 44 | |
| 45 | config CAIF_VIRTIO |
| 46 | tristate "CAIF virtio transport driver" |
| 47 | depends on CAIF && HAS_DMA |
| 48 | select VHOST_RING |
| 49 | select VIRTIO |
| 50 | select GENERIC_ALLOCATOR |
| 51 | default n |
| 52 | ---help--- |
| 53 | The caif driver for CAIF over Virtio. |
| 54 | |
| 55 | if CAIF_VIRTIO |
| 56 | source "drivers/vhost/Kconfig.vringh" |
| 57 | endif |