1 files changed, 142 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/drivers_ext/synaptics_touchpad/synaptics_touchpad.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/drivers_ext/synaptics_touchpad/synaptics_touchpad.c
new file mode 100644
index 0000000..53294ad
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/drivers_ext/synaptics_touchpad/synaptics_touchpad.c
@@ -0,0 +1,142 @@
+/**
+ * Copyright (c) 2009 - 2018, Nordic Semiconductor ASA
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form, except as embedded into a Nordic
+ *    Semiconductor ASA integrated circuit in a product or a software update for
+ *    such product, must reproduce the above copyright notice, this list of
+ *    conditions and the following disclaimer in the documentation and/or other
+ *    materials provided with the distribution.
+ * 
+ * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * 4. This software, with or without modification, must only be used with a
+ *    Nordic Semiconductor ASA integrated circuit.
+ * 
+ * 5. Any software provided in binary form under this license must not be reverse
+ *    engineered, decompiled, modified and/or disassembled.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ */
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "twi_master.h"
+#include "synaptics_touchpad.h"
+
+/*lint ++flb "Enter library region" */
+
+#define PRODUCT_ID_BYTES 10U //!< Number of bytes to expect to be in product ID
+
+static uint8_t       m_device_address; // !< Device address in bits [7:1]
+static const uint8_t expected_product_id[PRODUCT_ID_BYTES] = {'T', 'M', '1', '9', '4', '4', '-', '0', '0', '2'};  //!< Product ID expected to get from product ID query
+
+bool touchpad_init(uint8_t device_address)
+{
+    bool transfer_succeeded = true;
+
+    m_device_address = (uint8_t)(device_address << 1);
+
+    // Do a soft reset
+    uint8_t reset_command = 0x01;
+    transfer_succeeded &= touchpad_write_register(TOUCHPAD_RESET, reset_command);
+
+    // Page select 0
+    uint8_t page_to_select = 0x00;
+    transfer_succeeded &= touchpad_write_register(TOUCHPAD_PAGESELECT, page_to_select);
+
+    // Read and verify product ID
+    transfer_succeeded &= touchpad_product_id_verify();
+
+    return transfer_succeeded;
+}
+
+
+bool touchpad_product_id_verify(void)
+{
+    bool    transfer_succeeded = true;
+    uint8_t product_id[PRODUCT_ID_BYTES];
+    transfer_succeeded &= touchpad_product_id_read(product_id, PRODUCT_ID_BYTES);
+
+    for (uint8_t i = 0; i < 10; i++)
+    {
+        if (product_id[i] != expected_product_id[i])
+        {
+            transfer_succeeded = false;
+        }
+    }
+
+    return transfer_succeeded;
+}
+
+bool touchpad_reset(void)
+{
+    uint8_t w2_data[2] = {TOUCHPAD_COMMAND, 0x01};
+
+    return twi_master_transfer(m_device_address, w2_data, 2, TWI_ISSUE_STOP);
+}
+
+bool touchpad_interrupt_status_read(uint8_t *interrupt_status)
+{
+    return touchpad_read_register(TOUCHPAD_INT_STATUS, interrupt_status);
+}
+
+bool touchpad_set_sleep_mode(TouchpadSleepMode_t mode)
+{
+    return touchpad_write_register(TOUCHPAD_CONTROL, (uint8_t)mode);
+}
+
+bool touchpad_read_register(uint8_t register_address, uint8_t *value)
+{
+    bool transfer_succeeded = true;
+    transfer_succeeded &= twi_master_transfer(m_device_address, &register_address, 1, TWI_DONT_ISSUE_STOP);
+    if (transfer_succeeded)
+    {
+        transfer_succeeded &= twi_master_transfer(m_device_address | TWI_READ_BIT, value, 1, TWI_ISSUE_STOP);
+    }
+    return transfer_succeeded;
+}
+
+bool touchpad_write_register(uint8_t register_address, const uint8_t value)
+{
+    uint8_t w2_data[2];
+
+    w2_data[0] = register_address;
+    w2_data[1] = value;
+    return twi_master_transfer(m_device_address, w2_data, 2, TWI_ISSUE_STOP);
+}
+
+bool touchpad_product_id_read(uint8_t * product_id, uint8_t product_id_bytes)
+{
+    uint8_t w2_data[1];
+    bool transfer_succeeded = true;
+
+    w2_data[0] = TOUCHPAD_PRODUCT_ID;
+    transfer_succeeded &= twi_master_transfer(m_device_address, w2_data, 1, TWI_DONT_ISSUE_STOP);
+    if (transfer_succeeded)
+    {
+        transfer_succeeded &= twi_master_transfer(m_device_address | TWI_READ_BIT, product_id, product_id_bytes, TWI_ISSUE_STOP);
+    }
+    return transfer_succeeded;
+}
+
+/*lint --flb "Leave library region" */