change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/drivers/staging/pi433/rf69.c
..
..
@@ -4,16 +4,6 @@
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  *
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  * Copyright (C) 2016 Wolf-Entwicklungen
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  *	Marcus Wolf <linux@wolf-entwicklungen.de>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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  */
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8
 
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 /* enable prosa debug info */
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@@ -359,18 +349,51 @@
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 int rf69_set_output_power_level(struct spi_device *spi, u8 power_level)
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 {
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-	// TODO: Dependency to PA0,1,2 setting
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-	power_level += 18;
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+	u8 pa_level, ocp, test_pa1, test_pa2;
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+	bool pa0, pa1, pa2, high_power;
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+	u8 min_power_level;
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+
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+	// check register pa_level
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+	pa_level = rf69_read_reg(spi, REG_PALEVEL);
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+	pa0 = pa_level & MASK_PALEVEL_PA0;
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+	pa1 = pa_level & MASK_PALEVEL_PA1;
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+	pa2 = pa_level & MASK_PALEVEL_PA2;
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+
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+	// check high power mode
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+	ocp = rf69_read_reg(spi, REG_OCP);
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+	test_pa1 = rf69_read_reg(spi, REG_TESTPA1);
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+	test_pa2 = rf69_read_reg(spi, REG_TESTPA2);
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+	high_power = (ocp == 0x0f) && (test_pa1 == 0x5d) && (test_pa2 == 0x7c);
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+
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+	if (pa0 && !pa1 && !pa2) {
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+		power_level += 18;
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+		min_power_level = 0;
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+	} else if (!pa0 && pa1 && !pa2) {
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+		power_level += 18;
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+		min_power_level = 16;
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+	} else if (!pa0 && pa1 && pa2) {
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+		if (high_power)
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+			power_level += 11;
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+		else
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+			power_level += 14;
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+		min_power_level = 16;
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+	} else {
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+		goto failed;
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+	}
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 	// check input value
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-	if (power_level > 0x1f) {
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-		dev_dbg(&spi->dev, "set: illegal input param");
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-		return -EINVAL;
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-	}
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+	if (power_level > 0x1f)
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+		goto failed;
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+
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+	if (power_level < min_power_level)
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+		goto failed;
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 	// write value
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 	return rf69_read_mod_write(spi, REG_PALEVEL, MASK_PALEVEL_OUTPUT_POWER,
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 				   power_level);
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+failed:
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+	dev_dbg(&spi->dev, "set: illegal input param");
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+	return -EINVAL;
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 }
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 int rf69_set_pa_ramp(struct spi_device *spi, enum pa_ramp pa_ramp)
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@@ -634,9 +657,7 @@
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 	retval = rf69_write_reg(spi, REG_PREAMBLE_MSB, msb);
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 	if (retval)
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 		return retval;
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-	retval = rf69_write_reg(spi, REG_PREAMBLE_LSB, lsb);
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-
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-	return retval;
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+	return rf69_write_reg(spi, REG_PREAMBLE_LSB, lsb);
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 }
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 int rf69_enable_sync(struct spi_device *spi)
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@@ -701,10 +722,10 @@
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 	switch (packet_format) {
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 	case packet_length_var:
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 		return rf69_set_bit(spi, REG_PACKETCONFIG1,
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-				    MASK_PACKETCONFIG1_PAKET_FORMAT_VARIABLE);
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+				    MASK_PACKETCONFIG1_PACKET_FORMAT_VARIABLE);
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 	case packet_length_fix:
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 		return rf69_clear_bit(spi, REG_PACKETCONFIG1,
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-				      MASK_PACKETCONFIG1_PAKET_FORMAT_VARIABLE);
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+				      MASK_PACKETCONFIG1_PACKET_FORMAT_VARIABLE);
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 	default:
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 		dev_dbg(&spi->dev, "set: illegal input param");
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 		return -EINVAL;
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@@ -853,7 +874,6 @@
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 #ifdef DEBUG_FIFO_ACCESS
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 	int i;
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 #endif
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-	char spi_address = REG_FIFO | WRITE_BIT;
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 	u8 local_buffer[FIFO_SIZE + 1];
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 	if (size > FIFO_SIZE) {
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@@ -862,7 +882,7 @@
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 		return -EMSGSIZE;
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 	}
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-	local_buffer[0] = spi_address;
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+	local_buffer[0] = REG_FIFO | WRITE_BIT;
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 	memcpy(&local_buffer[1], buffer, size);
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 #ifdef DEBUG_FIFO_ACCESS