Declaring these as const lets the linker generate more optimal code.
Some extra care is needed with hci_ecc.c since it was overwriting the
send callback. Now the choice of send() call is done directly in the
bt_send() function
Change-Id: Iac74f5ee9bee097bbb34c11bd13d1d886700f5cc
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Reduce the pressure on the common RX buffer pool by reusing HCI
command buffers also for the Command Status or Command Complete
response to them. This also implies removing the existing Kconfig
variable for the command buffer sizes since the size is also dependent
on maximum Command Complete event sizes. Instead, reuse the RX buffer
size also for HCI Command buffers.
Change-Id: I006b287d64a0c9ca40de741aa9a424a49a927385
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
spi_transceive can return successfuly even if the data provided by the
slave is invalid, so check if the content is correct and retry until a
valid data is available.
Change-Id: Ia951de391e0b24c5b41eeabfb5c10b056d32b62e
Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>
Drop the BLUETOOTH_SPI_RX_BUFFER_SIZE and BLUETOOTH_SPI_TX_BUFFER_SIZE
config options by fixing the max SPI buffer length to 255, as used by
the X-NUCLEO-IDB04A1 BSP. This simplifies the rx/tx buffer handling, and
avoids a potential spi rx stack overflow depending on the config values
set by the user.
Change-Id: Ifa7fd086016abda4bdcf9638f28b38d001a288c5
Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>
This new option is used to encapsulate the logic specific to devices
implementing the BlueNRG Bluetooth stack (e.g. X-NUCLEO-IDB05A1).
The current BlueNRG specific logic covers the HCI Reset handling and
the manual control of the SPI Chip Select line (normally not needed since
spi_transceive is also responsible for controlling the SPI CS line).
Change-Id: I5db4addf873eee0af2d957e2181c50aac53ab656
Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>
Code was assuming that all the HCI messages were events, causing invalid
data length when receiving HCL ACL packets.
Change-Id: I8c1a07f46b6b62a04e242cf29ee1119f59d4bda6
Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>
There was a recent change to the license boilerplate of the entire
source tree, however as this spi.c was just recently added it missed
the change.
Change-Id: Icc95084a4b051266beaf1796c31d9aec9da538d0
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This driver acts as a pass-through, taking raw HCI data, converting
it to SPI comms and vice versa. It works in the same way as the
existing H:4 and H:5 drivers, only it uses SPI instead of UART.
In this first release, the only BLE board which has been tested is
the X-NUCLEO-IDB05A1:
http://www.st.com/en/ecosystems/x-nucleo-idb05a1.html
Although the current supported SPI format works like the one below,
it should be trivial to adapt it to support other chips with a
different format.
SANITY CHECK = 0x02
SPI WRITE = 0x0A
SPI READ = 0x0B
Tx Format:
[HOST] {SPI WRITE} 0x00 0x00 0x00 0x00 {HCI MESSAGE ...}
[CHIP] {SANITY CHECK} {FLASH SIZE} 0x00 0x00 0x00 {0xFF * MESSAGE LEN}
Rx Format:
{IRQ LINE GOES HIGH}
[HOST] {SPI READ} 0x00 0x00 0x00 0x00 {0xFF * BYTES TO READ}
[CHIP] 0x02 {FLASH SIZE} 0x00 {BYTES TO READ} 0x00 {HCI MESSAGE ...}
Change-Id: I4a00711c922d9ea02c5e2afb0d16715e413b1ed5
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Johan Hedberg