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driver/bluetooth: Add setup of PUBLIC ADDR

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Added setup of PUBLIC ADDR

NOTE: By default, the CYW208xx controller sets some
hard-coded static address.

To avoid address duplication, let's always override
the default address by using the HCI command
BT_HCI_VND_OP_SET_LOCAL_DEV_ADDR. So

1. when cyw208xx_setup gets BT_ADDR_ANY from the host,
   it will overwrite the default address, and the host
   will switch to using a random address (set in the hci_init
   function).

2. If user set the static address (by using bt_id_create)
   before bt_enable, cyw208xx_setup will set user defined
   static address.

Signed-off-by: Nazar Palamar <nazar.palamar@infineon.com>
This commit is contained in:
Nazar Palamar 2024-07-25 13:05:24 +03:00 • committed by Alberto Escolar
commit 9a112dc474
2 changed files with 36 additions and 2 deletions
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1
drivers/bluetooth/hci/Kconfig
View file

@ -144,6 +144,7 @@ config BT_CYW208XX
bool
default y
depends on DT_HAS_INFINEON_CYW208XX_HCI_ENABLED
select BT_HCI_SET_PUBLIC_ADDR
help
Infineon CYW208XX HCI bluetooth interface

37
drivers/bluetooth/hci/hci_ifx_cyw208xx.c
View file

@ -84,13 +84,15 @@ enum {
BT_HCI_VND_OP_WRITE_RAM = 0xFC4C,
BT_HCI_VND_OP_LAUNCH_RAM = 0xFC4E,
BT_HCI_VND_OP_UPDATE_BAUDRATE = 0xFC18,
BT_HCI_VND_OP_SET_LOCAL_DEV_ADDR = 0xFC01,
};
/* Externs for CY43xxx controller FW */
extern const uint8_t brcm_patchram_buf[];
extern const int brcm_patch_ram_length;
#define CYBSP_BT_PLATFORM_CFG_SLEEP_MODE_LP_ENABLED (1)
#define CYBSP_BT_PLATFORM_CFG_SLEEP_MODE_LP_ENABLED (0)
#define BTM_SET_LOCAL_DEV_ADDR_LENGTH 6
static K_SEM_DEFINE(hci_sem, 1, 1);
static K_SEM_DEFINE(cybt_platform_task_init_sem, 0, 1);
@ -168,8 +170,9 @@ static int cyw208xx_bt_firmware_download(const uint8_t *firmware_image, uint32_t
static int cyw208xx_setup(const struct device *dev, const struct bt_hci_setup_params *params)
{
ARG_UNUSED(dev);
ARG_UNUSED(params);
int err;
struct net_buf *buf;
/* Send HCI_RESET */
err = bt_hci_cmd_send_sync(BT_HCI_OP_RESET, NULL, NULL);
@ -185,6 +188,36 @@ static int cyw208xx_setup(const struct device *dev, const struct bt_hci_setup_pa
/* Waiting when BLE up after firmware launch */
cybt_platform_hci_wait_for_boot_fully_up(false);
/* Set public address */
buf = bt_hci_cmd_create(BT_HCI_VND_OP_SET_LOCAL_DEV_ADDR, BTM_SET_LOCAL_DEV_ADDR_LENGTH);
if (buf == NULL) {
LOG_ERR("Unable to allocate command buffer");
return -ENOMEM;
}
bt_addr_t *data = net_buf_add(buf, BTM_SET_LOCAL_DEV_ADDR_LENGTH);
bt_addr_copy(data, &(params->public_addr));
/* NOTE: By default, the CYW208xx controller sets some hard-coded static address.
* To avoid address duplication, let's always override the default address by using
* the HCI command BT_HCI_VND_OP_SET_LOCAL_DEV_ADDR. So
*
* 1. when cyw208xx_setup gets BT_ADDR_ANY from the host, it will overwrite the
* default address, and the host will switch to using a random address (set in
* the hci_init function).
*
* 2. If user set the static address (by using bt_id_create) before bt_enable,
* cyw208xx_setup will set user defined static address.
*/
err = bt_hci_cmd_send_sync(BT_HCI_VND_OP_SET_LOCAL_DEV_ADDR, buf, NULL);
if (err) {
LOG_ERR("Failed to set public address (%d)", err);
return err;
}
return 0;
}