19 static uint32_t idx_occupied(uint32_t len, uint32_t wr_idx, uint32_t rd_idx)  in idx_occupied()  argument
22 	return (rd_idx > wr_idx) ? (len - (rd_idx - wr_idx)) : (wr_idx - rd_idx);  in idx_occupied()
80 	pb->data.wr_idx = 0;  in pbuf_tx_init()
84 	*(pb->cfg->wr_idx_loc) = pb->data.wr_idx;  in pbuf_tx_init()
106 	pb->data.wr_idx = 0;  in pbuf_rx_init()
126 	uint32_t wr_idx = pb->data.wr_idx;  in pbuf_write()  local
129 	__ASSERT_NO_MSG(IS_PTR_ALIGNED_BYTES(wr_idx, _PBUF_IDX_SIZE));  in pbuf_write()
137 	uint32_t free_space = blen - idx_occupied(blen, wr_idx, rd_idx) - _PBUF_IDX_SIZE;  in pbuf_write()
150 	*((uint32_t *)(&data_loc[wr_idx])) = 0;  in pbuf_write()
151 	sys_put_be16(len, &data_loc[wr_idx]);  in pbuf_write()
153 	sys_cache_data_flush_range(&data_loc[wr_idx], PBUF_PACKET_LEN_SZ);  in pbuf_write()
155 	wr_idx = idx_wrap(blen, wr_idx + PBUF_PACKET_LEN_SZ);  in pbuf_write()
158 	uint32_t tail = MIN(len, blen - wr_idx);  in pbuf_write()
160 	memcpy(&data_loc[wr_idx], data, tail);  in pbuf_write()
161 	sys_cache_data_flush_range(&data_loc[wr_idx], tail);  in pbuf_write()
169 	wr_idx = idx_wrap(blen, ROUND_UP(wr_idx + len, _PBUF_IDX_SIZE));  in pbuf_write()
171 	pb->data.wr_idx = wr_idx;  in pbuf_write()
172 	*(pb->cfg->wr_idx_loc) = wr_idx;  in pbuf_write()
192 	uint32_t wr_idx = *(pb->cfg->wr_idx_loc);  in pbuf_read()  local
200 	if (!IS_PTR_ALIGNED_BYTES(wr_idx, _PBUF_IDX_SIZE)) {  in pbuf_read()
204 	if (rd_idx == wr_idx) {  in pbuf_read()
221 	uint32_t occupied_space = idx_occupied(blen, wr_idx, rd_idx);  in pbuf_read()