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Diffstat (limited to 'include/soc/fsl/qe/qmc.h')
-rw-r--r--include/soc/fsl/qe/qmc.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/include/soc/fsl/qe/qmc.h b/include/soc/fsl/qe/qmc.h
new file mode 100644
index 000000000000..3c61a50d2ae2
--- /dev/null
+++ b/include/soc/fsl/qe/qmc.h
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * QMC management
+ *
+ * Copyright 2022 CS GROUP France
+ *
+ * Author: Herve Codina <herve.codina@bootlin.com>
+ */
+#ifndef __SOC_FSL_QMC_H__
+#define __SOC_FSL_QMC_H__
+
+#include <linux/types.h>
+
+struct device_node;
+struct device;
+struct qmc_chan;
+
+struct qmc_chan *qmc_chan_get_byphandle(struct device_node *np, const char *phandle_name);
+void qmc_chan_put(struct qmc_chan *chan);
+struct qmc_chan *devm_qmc_chan_get_byphandle(struct device *dev, struct device_node *np,
+ const char *phandle_name);
+
+enum qmc_mode {
+ QMC_TRANSPARENT,
+ QMC_HDLC,
+};
+
+struct qmc_chan_info {
+ enum qmc_mode mode;
+ unsigned long rx_fs_rate;
+ unsigned long rx_bit_rate;
+ u8 nb_rx_ts;
+ unsigned long tx_fs_rate;
+ unsigned long tx_bit_rate;
+ u8 nb_tx_ts;
+};
+
+int qmc_chan_get_info(struct qmc_chan *chan, struct qmc_chan_info *info);
+
+struct qmc_chan_param {
+ enum qmc_mode mode;
+ union {
+ struct {
+ u16 max_rx_buf_size;
+ u16 max_rx_frame_size;
+ bool is_crc32;
+ } hdlc;
+ struct {
+ u16 max_rx_buf_size;
+ } transp;
+ };
+};
+
+int qmc_chan_set_param(struct qmc_chan *chan, const struct qmc_chan_param *param);
+
+int qmc_chan_write_submit(struct qmc_chan *chan, dma_addr_t addr, size_t length,
+ void (*complete)(void *context), void *context);
+
+int qmc_chan_read_submit(struct qmc_chan *chan, dma_addr_t addr, size_t length,
+ void (*complete)(void *context, size_t length),
+ void *context);
+
+#define QMC_CHAN_READ (1<<0)
+#define QMC_CHAN_WRITE (1<<1)
+#define QMC_CHAN_ALL (QMC_CHAN_READ | QMC_CHAN_WRITE)
+
+int qmc_chan_start(struct qmc_chan *chan, int direction);
+int qmc_chan_stop(struct qmc_chan *chan, int direction);
+int qmc_chan_reset(struct qmc_chan *chan, int direction);
+
+#endif /* __SOC_FSL_QMC_H__ */