// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2013 Noralf Tronnes
*
* This driver is inspired by:
* st7735fb.c, Copyright (C) 2011, Matt Porter
* broadsheetfb.c, Copyright (C) 2008, Jaya Kumar
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/fb.h>
#include <linux/gpio/consumer.h>
#include <linux/spi/spi.h>
#include <linux/delay.h>
#include <linux/uaccess.h>
#include <linux/backlight.h>
#include <linux/platform_device.h>
#include <linux/spinlock.h>
#include <linux/of.h>
#include <video/mipi_display.h>
#include "fbtft.h"
#include "internal.h"
static unsigned long debug;
module_param(debug, ulong, 0000);
MODULE_PARM_DESC(debug, "override device debug level");
int fbtft_write_buf_dc(struct fbtft_par *par, void *buf, size_t len, int dc)
{
int ret;
if (par->gpio.dc)
gpiod_set_value(par->gpio.dc, dc);
ret = par->fbtftops.write(par, buf, len);
if (ret < 0)
dev_err(par->info->device,
"write() failed and returned %d\n", ret);
return ret;
}
EXPORT_SYMBOL(fbtft_write_buf_dc);
void fbtft_dbg_hex(const struct device *dev, int groupsize,
void *buf, size_t len, const char *fmt, ...)
{
va_list args;
static char textbuf[512];
char *text = textbuf;
size_t text_len;
va_start(args, fmt);
text_len = vscnprintf(text, sizeof(textbuf), fmt, args);
va_end(args);
hex_dump_to_buffer(buf, len, 32, groupsize, text + text_len,
512 - text_len, false);
if (len > 32)
dev_info(dev,