32 lines
1.2 KiB
C
32 lines
1.2 KiB
C
#include "char_desc.h"
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int gatt_svr_desc_presentation_bool_access(uint16_t conn_handle, uint16_t attr_handle,
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struct ble_gatt_access_ctxt *ctxt, void *arg)
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{
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if (ctxt->op == BLE_GATT_ACCESS_OP_READ_DSC)
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{
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// 7-Byte Format: [format, exponent, unit(2), namespace, description(2)]
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uint8_t fmt[7] = {
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0x01, // format = boolean
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0x00, // exponent
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0x00, 0x00, // unit = none
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0x01, // namespace = Bluetooth SIG
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0x00, 0x00 // description
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};
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return os_mbuf_append(ctxt->om, fmt, sizeof(fmt)) == 0 ? 0 : BLE_ATT_ERR_INSUFFICIENT_RES;
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}
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return BLE_ATT_ERR_READ_NOT_PERMITTED;
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}
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int gatt_svr_desc_valid_range_bool_access(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt *ctxt,
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void *arg)
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{
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if (ctxt->op == BLE_GATT_ACCESS_OP_READ_DSC)
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{
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// for bool optional. but here as 1-Byte-Min/Max (0..1)
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uint8_t range[2] = {0x00, 0x01}; // min=0, max=1
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return os_mbuf_append(ctxt->om, range, sizeof(range)) == 0 ? 0 : BLE_ATT_ERR_INSUFFICIENT_RES;
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}
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return BLE_ATT_ERR_READ_NOT_PERMITTED;
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}
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