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Diffstat (limited to 'zephyr/drivers/cros_cbi/cros_cbi.c')
-rw-r--r--zephyr/drivers/cros_cbi/cros_cbi.c218
1 files changed, 0 insertions, 218 deletions
diff --git a/zephyr/drivers/cros_cbi/cros_cbi.c b/zephyr/drivers/cros_cbi/cros_cbi.c
deleted file mode 100644
index a36a4e9143..0000000000
--- a/zephyr/drivers/cros_cbi/cros_cbi.c
+++ /dev/null
@@ -1,218 +0,0 @@
-/* Copyright 2021 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.
- */
-
-#include <drivers/cros_cbi.h>
-#include "cros_board_info.h"
-#include <logging/log.h>
-
-LOG_MODULE_REGISTER(cros_cbi, LOG_LEVEL_ERR);
-
-/* CBI SSFC part */
-
-/* This part of the driver is about CBI SSFC part.
- * Actually, two "compatible" values are handle here -
- * named_cbi_ssfc_value and named_cbi_ssfc. named_cbi_ssfc_value nodes are
- * grandchildren of the named_cbi_ssfc node. named_cbi_ssfc_value is introduced
- * to iterate over grandchildren of the named_cbi_ssfc(macro
- * DT_FOREACH_CHILD can not be nested) and it can be pointed by a sensor dts to
- * indicate alternative usage.
- */
-#define DT_DRV_COMPAT named_cbi_ssfc_value
-
-BUILD_ASSERT(DT_NUM_INST_STATUS_OKAY(named_cbi_ssfc) < 2,
- "More than 1 CBI SSFS node");
-#define CBI_SSFC_NODE DT_INST(0, named_cbi_ssfc)
-
-#define CBI_SSFC_INIT_DEFAULT_ID(id) \
- do { \
- if (DT_PROP(id, default)) { \
- cached_ssfc.CBI_SSFC_UNION_ENTRY_NAME(DT_PARENT(id)) = \
- DT_PROP(id, value); \
- } \
- } while (0);
-
-#define CBI_SSFC_INIT_DEFAULT(inst) CBI_SSFC_INIT_DEFAULT_ID(DT_DRV_INST(inst))
-
-#define CBI_SSFC_VALUE_ARRAY_ID(id) \
- [CBI_SSFC_VALUE_ID(id)] = DT_PROP(id, value),
-
-#define CBI_SSFC_VALUE_ARRAY(inst) CBI_SSFC_VALUE_ARRAY_ID(DT_DRV_INST(inst))
-
-#define CBI_SSFC_VALUE_BUILD_ASSERT(inst) \
- BUILD_ASSERT(DT_INST_PROP(inst, value) <= UINT8_MAX, \
- "CBI SSFS value too big");
-
-#define CBI_SSFC_PARENT_VALUE_CASE_GENERATE(value_id, value_parent) \
- case value_id: \
- return value_parent;
-
-#define CBI_SSFC_PARENT_VALUE_CASE_ID(id) \
- CBI_SSFC_PARENT_VALUE_CASE_GENERATE( \
- CBI_SSFC_VALUE_ID(id), \
- cached_ssfc.CBI_SSFC_UNION_ENTRY_NAME(DT_PARENT(id)))
-
-#define CBI_SSFC_PARENT_VALUE_CASE(inst) \
- CBI_SSFC_PARENT_VALUE_CASE_ID(DT_DRV_INST(inst))
-
-#define CBI_SSFC_UNION_ENTRY_NAME(id) DT_CAT(cbi_ssfc_, id)
-#define CBI_SSFC_UNION_ENTRY(id) \
- uint32_t CBI_SSFC_UNION_ENTRY_NAME(id) \
- : DT_PROP(id, size);
-
-#define CBI_SSFC_PLUS_FIELD_SIZE(id) +DT_PROP(id, size)
-#define CBI_SSFC_FIELDS_SIZE \
- (0 COND_CODE_1( \
- DT_NODE_EXISTS(CBI_SSFC_NODE), \
- (DT_FOREACH_CHILD(CBI_SSFC_NODE, CBI_SSFC_PLUS_FIELD_SIZE)), \
- ()))
-
-BUILD_ASSERT(CBI_SSFC_FIELDS_SIZE <= 32, "CBI SSFS is bigger than 32 bits");
-
-/*
- * Define union bit fields based on the device tree entries. Example:
- * cbi-ssfc {
- * compatible = "named-cbi-ssfc";
- *
- * base_sensor {
- * enum-name = "BASE_SENSOR";
- * size = <3>;
- * bmi160 {
- * compatible = "named-cbi-ssfc-value";
- * status = "okay";
- * value = <1>;
- * };
- * };
- * lid_sensor {
- * enum-name = "LID_SENSOR";
- * size = <3>;
- * bma255 {
- * compatible = "named-cbi-ssfc-value";
- * status = "okay";
- * value = <1>;
- * };
- * };
- * lightbar {
- * enum-name = "LIGHTBAR";
- * size = <2>;
- * 10_led {
- * compatible = "named-cbi-ssfc-value";
- * status = "okay";
- * value = <1>;
- * };
- * };
- * };
- * Should be converted into
- * union cbi_ssfc {
- * struct {
- * uint32_t cbi_ssfc_DT_N_S_cbi_ssfc_S_base_sensor:3
- * uint32_t cbi_ssfc_DT_N_S_cbi_ssfc_S_lid_sensor:3
- * uint32_t cbi_ssfc_DT_N_S_cbi_ssfc_S_lightbar:2
- * uint32_t reserved : 24;
- * };
- * uint32_t raw_value;
- * };
- */
-union cbi_ssfc {
- struct {
-#if DT_NODE_EXISTS(CBI_SSFC_NODE)
- DT_FOREACH_CHILD(CBI_SSFC_NODE, CBI_SSFC_UNION_ENTRY)
- uint32_t reserved : (32 - CBI_SSFC_FIELDS_SIZE);
-#endif
- };
- uint32_t raw_value;
-};
-
-BUILD_ASSERT(sizeof(union cbi_ssfc) == sizeof(uint32_t),
- "CBI SSFS structure exceedes 32 bits");
-
-DT_INST_FOREACH_STATUS_OKAY(CBI_SSFC_VALUE_BUILD_ASSERT)
-
-static const uint8_t ssfc_values[] = {
- DT_INST_FOREACH_STATUS_OKAY(CBI_SSFC_VALUE_ARRAY)
-};
-static union cbi_ssfc cached_ssfc __attribute__((unused));
-
-/* CBI SSFC part end */
-
-/* Device config */
-struct cros_cbi_config {
- /* SSFC values for specific configs */
- const uint8_t *ssfc_values;
-};
-
-/* Device data */
-struct cros_cbi_data {
- /* Cached SSFC configs */
- union cbi_ssfc cached_ssfc;
-};
-
-/* CBI SSFC part */
-
-static void cros_cbi_ssfc_init(const struct device *dev)
-{
- struct cros_cbi_data *data = (struct cros_cbi_data *)(dev->data);
-
- if (cbi_get_ssfc(&data->cached_ssfc.raw_value) != EC_SUCCESS) {
- DT_INST_FOREACH_STATUS_OKAY(CBI_SSFC_INIT_DEFAULT)
- }
-
- LOG_INF("Read CBI SSFC : 0x%08X\n", data->cached_ssfc.raw_value);
-}
-
-static uint32_t cros_cbi_ssfc_get_parent_field_value(union cbi_ssfc cached_ssfc,
- enum cbi_ssfc_value_id value_id)
-{
- switch (value_id) {
- DT_INST_FOREACH_STATUS_OKAY(CBI_SSFC_PARENT_VALUE_CASE)
- default:
- LOG_ERR("CBI SSFC parent field value not found: %d\n",
- value_id);
- return 0;
- }
-}
-
-static int cros_cbi_ec_ssfc_check_match(const struct device *dev,
- enum cbi_ssfc_value_id value_id)
-{
- struct cros_cbi_data *data = (struct cros_cbi_data *)(dev->data);
- struct cros_cbi_config *cfg = (struct cros_cbi_config *)(dev->config);
-
- return cros_cbi_ssfc_get_parent_field_value(data->cached_ssfc,
- value_id) ==
- cfg->ssfc_values[value_id];
-}
-
-/* CBI SSFC part end */
-#undef DT_DRV_COMPAT
-
-static int cros_cbi_ec_init(const struct device *dev)
-{
- cros_cbi_ssfc_init(dev);
-
- return 0;
-}
-
-/* cros ec cbi driver registration */
-static const struct cros_cbi_driver_api cros_cbi_driver_api = {
- .init = cros_cbi_ec_init,
- .ssfc_check_match = cros_cbi_ec_ssfc_check_match,
-};
-
-static int cbi_init(const struct device *dev)
-{
- ARG_UNUSED(dev);
-
- return 0;
-}
-
-static const struct cros_cbi_config cros_cbi_cfg = {
- .ssfc_values = ssfc_values,
-};
-
-static struct cros_cbi_data cros_cbi_data;
-
-DEVICE_DEFINE(cros_cbi, CROS_CBI_LABEL, cbi_init, NULL, &cros_cbi_data,
- &cros_cbi_cfg, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
- &cros_cbi_driver_api);
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