boards: beagle: beagleconnect_freedom: Use sky13317
- Use antenna switch sky13317 instead of hack - Base the board_antenna file on cc1352p1_launchxl/board_antenna.c Signed-off-by: Ayush Singh <ayush@beagleboard.org>
This commit is contained in:
Ayush Singh
Alberto Escolar
parent
49436854c8
commit
2efe8765a3
3 changed files with 78 additions and 56 deletions
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@ -81,14 +81,18 @@
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/* On-board antenna pinmux states */
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board_ant_tx_pa_off: board_ant_tx_pa_off {
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pinmux = <29 IOC_PORT_GPIO>;
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bias-disable;
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};
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board_ant_tx_pa_on: board_ant_tx_pa_on {
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pinmux = <29 IOC_PORT_RFC_GPO3>;
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bias-disable;
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};
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board_ant_subg_off: board_ant_subg_off {
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pinmux = <30 IOC_PORT_GPIO>;
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bias-disable;
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};
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board_ant_subg_on: board_ant_subg_on {
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pinmux = <30 IOC_PORT_RFC_GPO0>;
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bias-disable;
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};
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};
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@ -42,18 +42,33 @@
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};
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};
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/**
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* The BeagleConnect Freedom has an on-board antenna switch (SKY13317-373LF) used to select
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* the appropriate RF signal port based on the currently-used PHY.
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*
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* Truth table:
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*
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* Path DIO29 DIO30
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* =========== ===== =====
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* Off 0 0
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* Sub-1 GHz 0 1 // DIO30 mux to IOC_PORT_RFC_GPO0 for auto
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* 20 dBm TX 1 0 // DIO29 mux to IOC_PORT_RFC_GPO3 for auto
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*/
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antenna_mux0: antenna_mux0 {
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compatible = "skyworks,sky13317";
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status = "okay";
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gpios = <&gpio0 29 GPIO_ACTIVE_HIGH>, <&gpio0 30 GPIO_ACTIVE_HIGH>;
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pinctrl-0 = <&board_ant_tx_pa_off &board_ant_subg_off>;
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pinctrl-1 = <&board_ant_tx_pa_off &board_ant_subg_on>;
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pinctrl-2 = <&board_ant_tx_pa_on &board_ant_subg_on>;
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pinctrl-names = "default", "ant_subg", "ant_subg_pa";
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};
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leds: leds {
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compatible = "gpio-leds";
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led0: led_0 {
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gpios = <&gpio0 18 GPIO_ACTIVE_HIGH>; // 2.4GHz TX/RX
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};
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/* U.FL connector switch */
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rf_sw: rf_sw {
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gpios =
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<&gpio0 29 GPIO_ACTIVE_HIGH>, // SubG TX +20dB
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<&gpio0 30 GPIO_ACTIVE_HIGH>; // SubG TX/RX 0dB
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};
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};
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sens_i2c: sensor-switch {
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@ -2,6 +2,7 @@
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*
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* Copyright (c) 2021 Florin Stancu
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* Copyright (c) 2021 Jason Kridner, BeagleBoard.org Foundation
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* Copyright (c) 2024 Ayush Singh <ayush@beagleboard.org>
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*
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*/
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@ -10,22 +11,26 @@
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* switch.
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/device.h>
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#define DT_DRV_COMPAT skyworks_sky13317
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#include <zephyr/init.h>
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#include <zephyr/device.h>
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#include <zephyr/drivers/gpio.h>
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#include <zephyr/drivers/pinctrl.h>
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#include <ti/drivers/rf/RF.h>
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#include <driverlib/gpio.h>
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#include <driverlib/ioc.h>
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#include <driverlib/rom.h>
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#include <driverlib/interrupt.h>
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/* DIOs for RF antenna paths */
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#define BOARD_RF_HIGH_PA 29 /* TODO: pull from DT */
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#define BOARD_RF_SUB1GHZ 30 /* TODO: pull from DT */
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/* custom pinctrl states for the antenna mux */
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#define PINCTRL_STATE_ANT_SUBG 1
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#define PINCTRL_STATE_ANT_SUBG_PA 2
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static void board_cc13xx_rf_callback(RF_Handle client, RF_GlobalEvent events,
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void *arg);
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#define BOARD_ANT_GPIO_PA 0
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#define BOARD_ANT_GPIO_SUBG 1
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static int board_antenna_init(const struct device *dev);
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static void board_cc13xx_rf_callback(RF_Handle client, RF_GlobalEvent events, void *arg);
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const RFCC26XX_HWAttrsV2 RFCC26XX_hwAttrs = {
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.hwiPriority = INT_PRI_LEVEL7,
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@ -38,30 +43,44 @@ const RFCC26XX_HWAttrsV2 RFCC26XX_hwAttrs = {
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RF_GlobalEventRadioPowerDown),
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};
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PINCTRL_DT_INST_DEFINE(0);
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DEVICE_DT_INST_DEFINE(0, board_antenna_init, NULL, NULL, NULL, POST_KERNEL,
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CONFIG_BOARD_ANTENNA_INIT_PRIO, NULL);
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static const struct pinctrl_dev_config *ant_pcfg = PINCTRL_DT_INST_DEV_CONFIG_GET(0);
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static const struct gpio_dt_spec ant_gpios[] = {
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DT_FOREACH_PROP_ELEM_SEP(DT_NODELABEL(antenna_mux0), gpios, GPIO_DT_SPEC_GET_BY_IDX, (,))};
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/**
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* Antenna switch GPIO init routine.
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*/
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static int board_antenna_init(void)
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static int board_antenna_init(const struct device *dev)
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{
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ARG_UNUSED(dev);
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int i;
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/* set all paths to low */
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IOCPinTypeGpioOutput(BOARD_RF_HIGH_PA);
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GPIO_setOutputEnableDio(BOARD_RF_HIGH_PA, GPIO_OUTPUT_DISABLE);
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IOCPinTypeGpioOutput(BOARD_RF_SUB1GHZ);
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GPIO_setOutputEnableDio(BOARD_RF_SUB1GHZ, GPIO_OUTPUT_DISABLE);
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/* default pinctrl configuration: set all antenna mux control pins as GPIOs */
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pinctrl_apply_state(ant_pcfg, PINCTRL_STATE_DEFAULT);
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/* set all GPIOs to 0 (all RF paths disabled) */
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for (i = 0; i < ARRAY_SIZE(ant_gpios); i++) {
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gpio_pin_configure_dt(&ant_gpios[i], 0);
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}
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return 0;
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}
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SYS_INIT(board_antenna_init, POST_KERNEL, CONFIG_BOARD_ANTENNA_INIT_PRIO);
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void board_cc13xx_rf_callback(RF_Handle client, RF_GlobalEvent events, void *arg)
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/**
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* Custom TI RFCC26XX callback for switching the on-board antenna mux on radio setup.
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*/
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static void board_cc13xx_rf_callback(RF_Handle client, RF_GlobalEvent events, void *arg)
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{
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bool sub1GHz = false;
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uint8_t loDivider = 0;
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int i;
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/* Switch off all paths first. Needs to be done anyway in every sub-case below. */
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GPIO_setOutputEnableDio(BOARD_RF_HIGH_PA, GPIO_OUTPUT_DISABLE);
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GPIO_setOutputEnableDio(BOARD_RF_SUB1GHZ, GPIO_OUTPUT_DISABLE);
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/* Clear all antenna switch GPIOs (for all cases). */
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for (i = 0; i < ARRAY_SIZE(ant_gpios); i++) {
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gpio_pin_configure_dt(&ant_gpios[i], 0);
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}
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if (events & RF_GlobalEventRadioSetup) {
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/* Decode the current PA configuration. */
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@ -74,43 +93,27 @@ void board_cc13xx_rf_callback(RF_Handle client, RF_GlobalEvent events, void *arg
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case (CMD_RADIO_SETUP):
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case (CMD_BLE5_RADIO_SETUP):
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loDivider = RF_LODIVIDER_MASK & setupCommand->common.loDivider;
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/* Sub-1GHz front-end. */
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if (loDivider != 0)
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sub1GHz = true;
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break;
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case (CMD_PROP_RADIO_DIV_SETUP):
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loDivider = RF_LODIVIDER_MASK & setupCommand->prop_div.loDivider;
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/* Sub-1GHz front-end. */
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if (loDivider != 0)
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sub1GHz = true;
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break;
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default:
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break;
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}
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sub1GHz = (loDivider != 0);
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/* Sub-1 GHz */
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if (sub1GHz) {
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if (paType == RF_TxPowerTable_HighPA) {
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/* PA enable --> HIGH PA */
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/* LNA enable --> Sub-1 GHz */
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/* Note: RFC_GPO3 is a work-around because the RFC_GPO1 */
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/* is sometimes not de-asserted on CC1352 Rev A. */
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IOCPortConfigureSet(BOARD_RF_HIGH_PA,
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IOC_PORT_RFC_GPO3, IOC_IOMODE_NORMAL);
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IOCPortConfigureSet(BOARD_RF_SUB1GHZ,
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IOC_PORT_RFC_GPO0, IOC_IOMODE_NORMAL);
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pinctrl_apply_state(ant_pcfg, PINCTRL_STATE_ANT_SUBG_PA);
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} else {
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/* RF core active --> Sub-1 GHz */
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IOCPortConfigureSet(BOARD_RF_HIGH_PA,
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IOC_PORT_GPIO, IOC_IOMODE_NORMAL);
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IOCPortConfigureSet(BOARD_RF_SUB1GHZ,
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IOC_PORT_GPIO, IOC_IOMODE_NORMAL);
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GPIO_setOutputEnableDio(BOARD_RF_SUB1GHZ, GPIO_OUTPUT_ENABLE);
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pinctrl_apply_state(ant_pcfg, PINCTRL_STATE_ANT_SUBG);
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/* Manually set the sub-GHZ antenna switch DIO */
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gpio_pin_configure_dt(&ant_gpios[BOARD_ANT_GPIO_SUBG], 1);
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}
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}
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} else {
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/* Reset the IO multiplexer to GPIO functionality */
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IOCPortConfigureSet(BOARD_RF_HIGH_PA,
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IOC_PORT_GPIO, IOC_IOMODE_NORMAL);
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IOCPortConfigureSet(BOARD_RF_SUB1GHZ,
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IOC_PORT_GPIO, IOC_IOMODE_NORMAL);
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pinctrl_apply_state(ant_pcfg, PINCTRL_STATE_DEFAULT);
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}
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}
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