Replace with minimal version written from scratch that just defines the data

structures and function prototypes that we need.  The original file doesn't
even a suitable license even though the associated drm_mipi_dsi.c file is
MIT-licensed.  Probably a mistake upstream, but better safe than sorry.

ok deraadt@

1 files changed, 35 insertions, 238 deletions

diff --git a/sys/dev/pci/drm/drm_mipi_dsi.h b/sys/dev/pci/drm/drm_mipi_dsi.h
index dc0ff9f5687..37de315b899 100644
--- a/sys/dev/pci/drm/drm_mipi_dsi.h
+++ b/sys/dev/pci/drm/drm_mipi_dsi.h
@@ -1,261 +1,58 @@
-/*
- * MIPI DSI Bus
- *
- * Copyright (C) 2012-2013, Samsung Electronics, Co., Ltd.
- * Andrzej Hajda <a.hajda@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
+/* Public domain. */
 
-#ifndef __DRM_MIPI_DSI_H__
-#define __DRM_MIPI_DSI_H__
+#include <sys/types.h>
 
-#ifdef __linux__
-#include <linux/device.h>
-#endif
+#ifndef _DEV_PCI_DRM_DRM_MIPI_DSI_H_
+#define _DEV_PCI_DRM_DRM_MIPI_DSI_H_
 
 struct mipi_dsi_host;
 struct mipi_dsi_device;
+struct mipi_dsi_msg;
 
-/* request ACK from peripheral */
-#define MIPI_DSI_MSG_REQ_ACK	BIT(0)
-/* use Low Power Mode to transmit message */
-#define MIPI_DSI_MSG_USE_LPM	BIT(1)
-
-/**
- * struct mipi_dsi_msg - read/write DSI buffer
- * @channel: virtual channel id
- * @type: payload data type
- * @flags: flags controlling this message transmission
- * @tx_len: length of @tx_buf
- * @tx_buf: data to be written
- * @rx_len: length of @rx_buf
- * @rx_buf: data to be read, or NULL
- */
-struct mipi_dsi_msg {
-	u8 channel;
-	u8 type;
-	u16 flags;
-
-	size_t tx_len;
-	const void *tx_buf;
-
-	size_t rx_len;
-	void *rx_buf;
-};
-
-bool mipi_dsi_packet_format_is_short(u8 type);
-bool mipi_dsi_packet_format_is_long(u8 type);
-
-/**
- * struct mipi_dsi_packet - represents a MIPI DSI packet in protocol format
- * @size: size (in bytes) of the packet
- * @header: the four bytes that make up the header (Data ID, Word Count or
- *     Packet Data, and ECC)
- * @payload_length: number of bytes in the payload
- * @payload: a pointer to a buffer containing the payload, if any
- */
-struct mipi_dsi_packet {
-	size_t size;
-	u8 header[4];
-	size_t payload_length;
-	const u8 *payload;
-};
-
-int mipi_dsi_create_packet(struct mipi_dsi_packet *packet,
-			   const struct mipi_dsi_msg *msg);
-
-/**
- * struct mipi_dsi_host_ops - DSI bus operations
- * @attach: attach DSI device to DSI host
- * @detach: detach DSI device from DSI host
- * @transfer: transmit a DSI packet
- *
- * DSI packets transmitted by .transfer() are passed in as mipi_dsi_msg
- * structures. This structure contains information about the type of packet
- * being transmitted as well as the transmit and receive buffers. When an
- * error is encountered during transmission, this function will return a
- * negative error code. On success it shall return the number of bytes
- * transmitted for write packets or the number of bytes received for read
- * packets.
- *
- * Note that typically DSI packet transmission is atomic, so the .transfer()
- * function will seldomly return anything other than the number of bytes
- * contained in the transmit buffer on success.
- */
 struct mipi_dsi_host_ops {
-	int (*attach)(struct mipi_dsi_host *host,
-		      struct mipi_dsi_device *dsi);
-	int (*detach)(struct mipi_dsi_host *host,
-		      struct mipi_dsi_device *dsi);
-	ssize_t (*transfer)(struct mipi_dsi_host *host,
-			    const struct mipi_dsi_msg *msg);
+	int (*attach)(struct mipi_dsi_host *, struct mipi_dsi_device *);
+	int (*detach)(struct mipi_dsi_host *, struct mipi_dsi_device *);
+	ssize_t (*transfer)(struct mipi_dsi_host *, const struct mipi_dsi_msg *);
 };
 
-/**
- * struct mipi_dsi_host - DSI host device
- * @dev: driver model device node for this DSI host
- * @ops: DSI host operations
- */
 struct mipi_dsi_host {
-	struct device *dev;
 	const struct mipi_dsi_host_ops *ops;
 };
 
-int mipi_dsi_host_register(struct mipi_dsi_host *host);
-void mipi_dsi_host_unregister(struct mipi_dsi_host *host);
-
-/* DSI mode flags */
-
-/* video mode */
-#define MIPI_DSI_MODE_VIDEO		BIT(0)
-/* video burst mode */
-#define MIPI_DSI_MODE_VIDEO_BURST	BIT(1)
-/* video pulse mode */
-#define MIPI_DSI_MODE_VIDEO_SYNC_PULSE	BIT(2)
-/* enable auto vertical count mode */
-#define MIPI_DSI_MODE_VIDEO_AUTO_VERT	BIT(3)
-/* enable hsync-end packets in vsync-pulse and v-porch area */
-#define MIPI_DSI_MODE_VIDEO_HSE		BIT(4)
-/* disable hfront-porch area */
-#define MIPI_DSI_MODE_VIDEO_HFP		BIT(5)
-/* disable hback-porch area */
-#define MIPI_DSI_MODE_VIDEO_HBP		BIT(6)
-/* disable hsync-active area */
-#define MIPI_DSI_MODE_VIDEO_HSA		BIT(7)
-/* flush display FIFO on vsync pulse */
-#define MIPI_DSI_MODE_VSYNC_FLUSH	BIT(8)
-/* disable EoT packets in HS mode */
-#define MIPI_DSI_MODE_EOT_PACKET	BIT(9)
-/* device supports non-continuous clock behavior (DSI spec 5.6.1) */
-#define MIPI_DSI_CLOCK_NON_CONTINUOUS	BIT(10)
-/* transmit data in low power */
-#define MIPI_DSI_MODE_LPM		BIT(11)
-
-enum mipi_dsi_pixel_format {
-	MIPI_DSI_FMT_RGB888,
-	MIPI_DSI_FMT_RGB666,
-	MIPI_DSI_FMT_RGB666_PACKED,
-	MIPI_DSI_FMT_RGB565,
-};
-
-/**
- * struct mipi_dsi_device - DSI peripheral device
- * @host: DSI host for this peripheral
- * @dev: driver model device node for this peripheral
- * @channel: virtual channel assigned to the peripheral
- * @format: pixel format for video mode
- * @lanes: number of active data lanes
- * @mode_flags: DSI operation mode related flags
- */
 struct mipi_dsi_device {
 	struct mipi_dsi_host *host;
-	struct device dev;
-
-	unsigned int channel;
-	unsigned int lanes;
-	enum mipi_dsi_pixel_format format;
-	unsigned long mode_flags;
+	uint32_t channel;
+	uint32_t mode_flags;
+#define MIPI_DSI_MODE_LPM	(1 << 0)
 };
 
-static inline struct mipi_dsi_device *to_mipi_dsi_device(struct device *dev)
-{
-	return container_of(dev, struct mipi_dsi_device, dev);
-}
-
-struct mipi_dsi_device *of_find_mipi_dsi_device_by_node(struct device_node *np);
-int mipi_dsi_attach(struct mipi_dsi_device *dsi);
-int mipi_dsi_detach(struct mipi_dsi_device *dsi);
-int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi,
-					    u16 value);
-
-ssize_t mipi_dsi_generic_write(struct mipi_dsi_device *dsi, const void *payload,
-			       size_t size);
-ssize_t mipi_dsi_generic_read(struct mipi_dsi_device *dsi, const void *params,
-			      size_t num_params, void *data, size_t size);
-
-/**
- * enum mipi_dsi_dcs_tear_mode - Tearing Effect Output Line mode
- * @MIPI_DSI_DCS_TEAR_MODE_VBLANK: the TE output line consists of V-Blanking
- *    information only
- * @MIPI_DSI_DCS_TEAR_MODE_VHBLANK : the TE output line consists of both
- *    V-Blanking and H-Blanking information
- */
-enum mipi_dsi_dcs_tear_mode {
-	MIPI_DSI_DCS_TEAR_MODE_VBLANK,
-	MIPI_DSI_DCS_TEAR_MODE_VHBLANK,
+struct mipi_dsi_msg {
+	uint8_t type;
+	uint8_t channel;
+	uint16_t flags;
+#define MIPI_DSI_MSG_USE_LPM	(1 << 0)
+	const uint8_t *tx_buf;
+	size_t tx_len;
+	uint8_t *rx_buf;
+	size_t rx_len;
 };
 
-#define MIPI_DSI_DCS_POWER_MODE_DISPLAY (1 << 2)
-#define MIPI_DSI_DCS_POWER_MODE_NORMAL  (1 << 3)
-#define MIPI_DSI_DCS_POWER_MODE_SLEEP   (1 << 4)
-#define MIPI_DSI_DCS_POWER_MODE_PARTIAL (1 << 5)
-#define MIPI_DSI_DCS_POWER_MODE_IDLE    (1 << 6)
-
-ssize_t mipi_dsi_dcs_write_buffer(struct mipi_dsi_device *dsi,
-				  const void *data, size_t len);
-ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd,
-			   const void *data, size_t len);
-ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
-			  size_t len);
-int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi);
-int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi);
-int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode);
-int mipi_dsi_dcs_get_pixel_format(struct mipi_dsi_device *dsi, u8 *format);
-int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi);
-int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi);
-int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi);
-int mipi_dsi_dcs_set_display_on(struct mipi_dsi_device *dsi);
-int mipi_dsi_dcs_set_column_address(struct mipi_dsi_device *dsi, u16 start,
-				    u16 end);
-int mipi_dsi_dcs_set_page_address(struct mipi_dsi_device *dsi, u16 start,
-				  u16 end);
-int mipi_dsi_dcs_set_tear_off(struct mipi_dsi_device *dsi);
-int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi,
-			     enum mipi_dsi_dcs_tear_mode mode);
-int mipi_dsi_dcs_set_pixel_format(struct mipi_dsi_device *dsi, u8 format);
-
-/**
- * struct mipi_dsi_driver - DSI driver
- * @driver: device driver model driver
- * @probe: callback for device binding
- * @remove: callback for device unbinding
- * @shutdown: called at shutdown time to quiesce the device
- */
-struct mipi_dsi_driver {
-	struct device_driver driver;
-	int(*probe)(struct mipi_dsi_device *dsi);
-	int(*remove)(struct mipi_dsi_device *dsi);
-	void (*shutdown)(struct mipi_dsi_device *dsi);
+struct mipi_dsi_packet {
+	size_t size;
+	size_t payload_length;
+	uint8_t	header[4];
+	const uint8_t *payload;
 };
 
-static inline struct mipi_dsi_driver *
-to_mipi_dsi_driver(struct device_driver *driver)
-{
-	return container_of(driver, struct mipi_dsi_driver, driver);
-}
-
-static inline void *mipi_dsi_get_drvdata(const struct mipi_dsi_device *dsi)
-{
-	return dev_get_drvdata(&dsi->dev);
-}
-
-static inline void mipi_dsi_set_drvdata(struct mipi_dsi_device *dsi, void *data)
-{
-	dev_set_drvdata(&dsi->dev, data);
-}
-
-int mipi_dsi_driver_register_full(struct mipi_dsi_driver *driver,
-				  struct module *owner);
-void mipi_dsi_driver_unregister(struct mipi_dsi_driver *driver);
-
-#define mipi_dsi_driver_register(driver) \
-	mipi_dsi_driver_register_full(driver, THIS_MODULE)
+enum mipi_dsi_dcs_tear_mode {
+	MIPI_DSI_DCS_TEAR_MODE_UNUSED
+};
 
-#define module_mipi_dsi_driver(__mipi_dsi_driver) \
-	module_driver(__mipi_dsi_driver, mipi_dsi_driver_register, \
-			mipi_dsi_driver_unregister)
+int mipi_dsi_attach(struct mipi_dsi_device *);
+int mipi_dsi_create_packet(struct mipi_dsi_packet *,
+    const struct mipi_dsi_msg *);
+ssize_t mipi_dsi_generic_write(struct mipi_dsi_device *, const void *, size_t);
+ssize_t mipi_dsi_dcs_write_buffer(struct mipi_dsi_device *, const void *,
+    size_t);
 
-#endif /* __DRM_MIPI_DSI__ */
+#endif