1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5 * Copyright 2022 CS GROUP France
7 * Author: Herve Codina <herve.codina@bootlin.com>
9 #ifndef __SOC_FSL_QMC_H__
10 #define __SOC_FSL_QMC_H__
12 #include <linux/types.h>
18 struct qmc_chan *qmc_chan_get_byphandle(struct device_node *np, const char *phandle_name);
19 void qmc_chan_put(struct qmc_chan *chan);
20 struct qmc_chan *devm_qmc_chan_get_byphandle(struct device *dev, struct device_node *np,
21 const char *phandle_name);
28 struct qmc_chan_info {
30 unsigned long rx_fs_rate;
31 unsigned long rx_bit_rate;
33 unsigned long tx_fs_rate;
34 unsigned long tx_bit_rate;
38 int qmc_chan_get_info(struct qmc_chan *chan, struct qmc_chan_info *info);
40 struct qmc_chan_param {
45 u16 max_rx_frame_size;
54 int qmc_chan_set_param(struct qmc_chan *chan, const struct qmc_chan_param *param);
56 int qmc_chan_write_submit(struct qmc_chan *chan, dma_addr_t addr, size_t length,
57 void (*complete)(void *context), void *context);
59 int qmc_chan_read_submit(struct qmc_chan *chan, dma_addr_t addr, size_t length,
60 void (*complete)(void *context, size_t length),
63 #define QMC_CHAN_READ (1<<0)
64 #define QMC_CHAN_WRITE (1<<1)
65 #define QMC_CHAN_ALL (QMC_CHAN_READ | QMC_CHAN_WRITE)
67 int qmc_chan_start(struct qmc_chan *chan, int direction);
68 int qmc_chan_stop(struct qmc_chan *chan, int direction);
69 int qmc_chan_reset(struct qmc_chan *chan, int direction);
71 #endif /* __SOC_FSL_QMC_H__ */