diff options
Diffstat (limited to 'driver/fingerprint/fpc/bep/fpc_sensor_spi.c')
-rw-r--r-- | driver/fingerprint/fpc/bep/fpc_sensor_spi.c | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/driver/fingerprint/fpc/bep/fpc_sensor_spi.c b/driver/fingerprint/fpc/bep/fpc_sensor_spi.c deleted file mode 100644 index 225752bdb6..0000000000 --- a/driver/fingerprint/fpc/bep/fpc_sensor_spi.c +++ /dev/null @@ -1,94 +0,0 @@ -/* Copyright 2019 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -/* FPC Platform Abstraction Layer */ - -#include <stdint.h> -#include <stdbool.h> -#include <stddef.h> - -#include "console.h" -#include "fpsensor.h" -#include "fpc_sensor_spi.h" -#include "gpio.h" -#include "spi.h" -#include "util.h" - -#include "driver/fingerprint/fpc/fpc_sensor.h" - -/* Console output macros */ -#define CPRINTF(format, args...) cprintf(CC_FP, format, ##args) -#define CPRINTS(format, args...) cprints(CC_FP, format, ##args) - -#define SPI_BUF_SIZE (1024) - -#define FPC_RESULT_OK (0) -#define FPC_RESULT_IO_ERROR (-8) - -static uint8_t spi_buf[SPI_BUF_SIZE] FP_FRAME_SECTION __aligned(4); - -int __unused fpc_sensor_spi_write_read(uint8_t *write, uint8_t *read, - size_t size, bool leave_cs_asserted) -{ - int rc = 0; - - if (size == FP_SENSOR_REAL_IMAGE_SIZE) { - rc |= spi_transaction(SPI_FP_DEVICE, write, size, read, - SPI_READBACK_ALL); - spi_transaction_flush(SPI_FP_DEVICE); - } else if (size <= SPI_BUF_SIZE) { - memcpy(spi_buf, write, size); - rc |= spi_transaction_async(SPI_FP_DEVICE, spi_buf, size, - spi_buf, SPI_READBACK_ALL); - - /* De-asserting the sensor chip-select will clear the sensor - * internal command state. To run multiple sensor transactions - * in the same command state (typically image capture), leave - * chip-select asserted. Make sure chip-select is de-asserted - * when all transactions are finished. - */ - if (!leave_cs_asserted) - spi_transaction_flush(SPI_FP_DEVICE); - else - spi_transaction_wait(SPI_FP_DEVICE); - - memcpy(read, spi_buf, size); - } else { - rc = -1; - } - - if (rc == 0) { - return FPC_RESULT_OK; - } else { - CPRINTS("Error: spi_transaction()/spi_transaction_async() failed, result=%d", - rc); - return FPC_RESULT_IO_ERROR; - } -} - -bool __unused fpc_sensor_spi_check_irq(void) -{ - return (gpio_get_level(GPIO_FPS_INT) == 1); -} - -bool __unused fpc_sensor_spi_read_irq(void) -{ - return (gpio_get_level(GPIO_FPS_INT) == 1); -} - -void __unused fpc_sensor_spi_reset(bool state) -{ - gpio_set_level(GPIO_FP_RST_ODL, state ? 0 : 1); -} - -void __unused fpc_sensor_spi_init(uint32_t speed_hz) -{ -} - -int __unused fpc_sensor_wfi(uint16_t timeout_ms, fpc_wfi_check_t enter_wfi, - bool enter_wfi_mode) -{ - return FPC_RESULT_OK; -} |