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bt: hci driver over spi: Configure BlueNRG-MS in controller mode

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Configure BlueNRG in controller w/o host.
By disabling 'HCI_reset' via the quirk, we can request to
BluesNRG hardware to be on controller mode just after it is ready.
By the way it's no necessary to manage a 'HCI_reset' when BluesNRG are
initialised (and on controler mode).

Signed-off-by: Christophe Priouzeau <christophe.priouzeau@st.com>
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This commit is contained in:
Christophe Priouzeau 2018-06-26 12:07:23 +02:00 • committed by Carles Cufí
commit b0c294ce48
2 changed files with 52 additions and 1 deletions
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9
drivers/bluetooth/hci/Kconfig
View file

@ -85,12 +85,19 @@ config BT_SPI_DEV_NAME
if BT_SPI
config BT_BLUENRG_ACI
bool "Enable ACI message with with BlueNRG-based devices"
default n
help
Enable support for devices compatible with the BlueNRG Bluetooth
Stack. Current driver supports: ST BLUENRG-MS.
config BT_SPI_BLUENRG
bool "Enable compatibility with BlueNRG-based devices"
default n
help
Enable support for devices compatible with the BlueNRG Bluetooth
Stack. Current driver supports: ST X-NUCLEO BLE series.
Stack. Current driver supports: ST BLUENRG-MS.
if !HAS_DTS_SPI_PINS

44
drivers/bluetooth/hci/spi.c
View file

@ -12,6 +12,7 @@
#include <misc/byteorder.h>
#include <misc/util.h>
#include <bluetooth/hci.h>
#include <bluetooth/hci_driver.h>
#define BT_DBG_ENABLED IS_ENABLED(CONFIG_BT_DEBUG_HCI_DRIVER)
@ -106,6 +107,19 @@ static struct device *cs_dev;
static u8_t attempts;
#endif /* CONFIG_BT_SPI_BLUENRG */
#if defined(CONFIG_BT_BLUENRG_ACI)
#define BLUENRG_ACI_WRITE_CONFIG_DATA BT_OP(BT_OGF_VS, 0x000C)
#define BLUENRG_ACI_WRITE_CONFIG_CMD_LL 0x2C
#define BLUENRG_ACI_LL_MODE 0x01
struct bluenrg_aci_cmd_ll_param {
u8_t cmd;
u8_t length;
u8_t value;
};
static int bt_spi_send_aci_config_data_controller_mode(void);
#endif /* CONFIG_BT_BLUENRG_ACI */
static struct device *spi_dev;
static struct spi_config spi_conf = {
@ -159,6 +173,10 @@ static void bt_spi_handle_vendor_evt(u8_t *rxmsg)
switch (bt_spi_get_evt(rxmsg)) {
case EVT_BLUE_INITIALIZED:
k_sem_give(&sem_initialised);
#if defined(CONFIG_BT_BLUENRG_ACI)
/* force BlueNRG to be on controller mode */
bt_spi_send_aci_config_data_controller_mode();
#endif
default:
break;
}
@ -235,6 +253,29 @@ static bool exit_irq_high_loop(void)
#define exit_irq_high_loop(...) 1
#endif
#if defined(CONFIG_BT_BLUENRG_ACI)
static int bt_spi_send_aci_config_data_controller_mode(void)
{
struct bluenrg_aci_cmd_ll_param *param;
struct net_buf *buf;
buf = bt_hci_cmd_create(BLUENRG_ACI_WRITE_CONFIG_DATA, sizeof(*param));
if (!buf) {
return -ENOBUFS;
}
param = net_buf_add(buf, sizeof(*param));
param->cmd = BLUENRG_ACI_WRITE_CONFIG_CMD_LL;
param->length = 0x1;
/* Force BlueNRG-MS roles to Link Layer only mode */
param->value = BLUENRG_ACI_LL_MODE;
bt_hci_cmd_send(BLUENRG_ACI_WRITE_CONFIG_DATA, buf);
return 0;
}
#endif /* CONFIG_BT_BLUENRG_ACI */
static void bt_spi_rx_thread(void)
{
struct net_buf *buf;
@ -460,6 +501,9 @@ static int bt_spi_open(void)
static const struct bt_hci_driver drv = {
.name = "BT SPI",
.bus = BT_HCI_DRIVER_BUS_SPI,
#if defined(CONFIG_BT_BLUENRG_ACI)
.quirks = BT_QUIRK_NO_RESET,
#endif /* CONFIG_BT_BLUENRG_ACI */
.open = bt_spi_open,
.send = bt_spi_send,
};