diff options
Diffstat (limited to 'package/kernel/mac80211/patches/rt2x00/602-01-wifi-rt2x00-Add-support-for-loading-EEPROM-from-user.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/rt2x00/602-01-wifi-rt2x00-Add-support-for-loading-EEPROM-from-user.patch | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/rt2x00/602-01-wifi-rt2x00-Add-support-for-loading-EEPROM-from-user.patch b/package/kernel/mac80211/patches/rt2x00/602-01-wifi-rt2x00-Add-support-for-loading-EEPROM-from-user.patch new file mode 100644 index 00000000000..5040b5af621 --- /dev/null +++ b/package/kernel/mac80211/patches/rt2x00/602-01-wifi-rt2x00-Add-support-for-loading-EEPROM-from-user.patch @@ -0,0 +1,216 @@ +From 1046fc9e98936991aeb0b0656c84833d96a63c0f Mon Sep 17 00:00:00 2001 +From: Christian Marangi <ansuelsmth@gmail.com> +Date: Sun, 15 Oct 2023 14:22:49 +0200 +Subject: [PATCH 1/5] wifi: rt2x00: Add support for loading EEPROM from + userspace + +Add support for loading EEPROM from userspace. + +Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> +--- + drivers/net/wireless/ralink/rt2x00/Kconfig | 5 ++ + drivers/net/wireless/ralink/rt2x00/Makefile | 1 + + .../net/wireless/ralink/rt2x00/rt2800soc.c | 15 +--- + drivers/net/wireless/ralink/rt2x00/rt2x00.h | 1 + + .../net/wireless/ralink/rt2x00/rt2x00dev.c | 9 +++ + .../net/wireless/ralink/rt2x00/rt2x00eeprom.c | 75 +++++++++++++++++++ + .../net/wireless/ralink/rt2x00/rt2x00soc.c | 1 + + .../net/wireless/ralink/rt2x00/rt2x00soc.h | 9 +++ + 8 files changed, 102 insertions(+), 14 deletions(-) + create mode 100644 drivers/net/wireless/ralink/rt2x00/rt2x00eeprom.c + +--- a/local-symbols ++++ b/local-symbols +@@ -350,6 +350,7 @@ RT2X00_LIB_FIRMWARE= + RT2X00_LIB_CRYPTO= + RT2X00_LIB_LEDS= + RT2X00_LIB_DEBUGFS= ++RT2X00_LIB_EEPROM= + RT2X00_DEBUG= + WLAN_VENDOR_REALTEK= + RTL8180= +--- a/drivers/net/wireless/ralink/rt2x00/Kconfig ++++ b/drivers/net/wireless/ralink/rt2x00/Kconfig +@@ -70,6 +70,7 @@ config RT2800PCI + select RT2X00_LIB_MMIO + select RT2X00_LIB_PCI + select RT2X00_LIB_FIRMWARE ++ select RT2X00_LIB_EEPROM + select RT2X00_LIB_CRYPTO + depends on CRC_CCITT + depends on EEPROM_93CX6 +@@ -216,6 +217,7 @@ config RT2800SOC + select RT2X00_LIB_MMIO + select RT2X00_LIB_CRYPTO + select RT2X00_LIB_FIRMWARE ++ select RT2X00_LIB_EEPROM + select RT2800_LIB + select RT2800_LIB_MMIO + help +@@ -266,6 +268,9 @@ config RT2X00_LIB_FIRMWARE + config RT2X00_LIB_CRYPTO + bool + ++config RT2X00_LIB_EEPROM ++ bool ++ + config RT2X00_LIB_LEDS + bool + default y if (RT2X00_LIB=y && LEDS_CLASS=y) || (RT2X00_LIB=m && LEDS_CLASS!=n) +--- a/drivers/net/wireless/ralink/rt2x00/Makefile ++++ b/drivers/net/wireless/ralink/rt2x00/Makefile +@@ -8,6 +8,7 @@ rt2x00lib-$(CPTCFG_RT2X00_LIB_DEBUGFS) + + rt2x00lib-$(CPTCFG_RT2X00_LIB_CRYPTO) += rt2x00crypto.o + rt2x00lib-$(CPTCFG_RT2X00_LIB_FIRMWARE) += rt2x00firmware.o + rt2x00lib-$(CPTCFG_RT2X00_LIB_LEDS) += rt2x00leds.o ++rt2x00lib-$(CPTCFG_RT2X00_LIB_EEPROM) += rt2x00eeprom.o + + obj-$(CPTCFG_RT2X00_LIB) += rt2x00lib.o + obj-$(CPTCFG_RT2X00_LIB_MMIO) += rt2x00mmio.o +--- a/drivers/net/wireless/ralink/rt2x00/rt2800soc.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2800soc.c +@@ -90,19 +90,6 @@ static int rt2800soc_set_device_state(st + return retval; + } + +-static int rt2800soc_read_eeprom(struct rt2x00_dev *rt2x00dev) +-{ +- void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE); +- +- if (!base_addr) +- return -ENOMEM; +- +- memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE); +- +- iounmap(base_addr); +- return 0; +-} +- + /* Firmware functions */ + static char *rt2800soc_get_firmware_name(struct rt2x00_dev *rt2x00dev) + { +@@ -168,7 +155,7 @@ static const struct rt2800_ops rt2800soc + .register_multiread = rt2x00mmio_register_multiread, + .register_multiwrite = rt2x00mmio_register_multiwrite, + .regbusy_read = rt2x00mmio_regbusy_read, +- .read_eeprom = rt2800soc_read_eeprom, ++ .read_eeprom = rt2x00lib_read_eeprom, + .hwcrypt_disabled = rt2800soc_hwcrypt_disabled, + .drv_write_firmware = rt2800soc_write_firmware, + .drv_init_registers = rt2800mmio_init_registers, +--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h ++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h +@@ -703,6 +703,7 @@ enum rt2x00_capability_flags { + REQUIRE_HT_TX_DESC, + REQUIRE_PS_AUTOWAKE, + REQUIRE_DELAYED_RFKILL, ++ REQUIRE_EEPROM_FILE, + + /* + * Capabilities +--- /dev/null ++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00eeprom.c +@@ -0,0 +1,77 @@ ++// SPDX-License-Identifier: GPL-2.0-or-later ++/* Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com> ++ * Copyright (C) 2004 - 2009 Gertjan van Wingerde <gwingerde@gmail.com> ++ * <http://rt2x00.serialmonkey.com> ++ */ ++ ++/* Module: rt2x00lib ++ * Abstract: rt2x00 eeprom file loading routines. ++ */ ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++ ++#include "rt2x00.h" ++#include "rt2x00soc.h" ++ ++static const char * ++rt2x00lib_get_eeprom_file_name(struct rt2x00_dev *rt2x00dev) ++{ ++ struct rt2x00_platform_data *pdata = rt2x00dev->dev->platform_data; ++ ++ if (pdata && pdata->eeprom_file_name) ++ return pdata->eeprom_file_name; ++ ++ return NULL; ++} ++ ++static int rt2x00lib_read_eeprom_file(struct rt2x00_dev *rt2x00dev) ++{ ++ const struct firmware *ee; ++ const char *ee_name; ++ int retval; ++ ++ ee_name = rt2x00lib_get_eeprom_file_name(rt2x00dev); ++ if (!ee_name && test_bit(REQUIRE_EEPROM_FILE, &rt2x00dev->cap_flags)) { ++ rt2x00_err(rt2x00dev, "Required EEPROM name is missing."); ++ return -EINVAL; ++ } ++ ++ if (!ee_name) ++ return 0; ++ ++ rt2x00_info(rt2x00dev, "Loading EEPROM data from '%s'.\n", ee_name); ++ ++ retval = request_firmware(&ee, ee_name, rt2x00dev->dev); ++ if (retval) { ++ rt2x00_err(rt2x00dev, "Failed to request EEPROM.\n"); ++ return retval; ++ } ++ ++ if (!ee || !ee->size || !ee->data) { ++ rt2x00_err(rt2x00dev, "Failed to read EEPROM file.\n"); ++ retval = -ENOENT; ++ goto err_exit; ++ } ++ ++ if (ee->size != rt2x00dev->ops->eeprom_size) { ++ rt2x00_err(rt2x00dev, ++ "EEPROM file size is invalid, it should be %d bytes\n", ++ rt2x00dev->ops->eeprom_size); ++ retval = -EINVAL; ++ goto err_release_ee; ++ } ++ ++ memcpy(rt2x00dev->eeprom, ee->data, rt2x00dev->ops->eeprom_size); ++ ++err_release_ee: ++ release_firmware(ee); ++err_exit: ++ return retval; ++} ++ ++int rt2x00lib_read_eeprom(struct rt2x00_dev *rt2x00dev) ++{ ++ return rt2x00lib_read_eeprom_file(rt2x00dev); ++} ++EXPORT_SYMBOL_GPL(rt2x00lib_read_eeprom); +--- a/drivers/net/wireless/ralink/rt2x00/rt2x00soc.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00soc.c +@@ -86,6 +86,7 @@ int rt2x00soc_probe(struct platform_devi + if (IS_ERR(rt2x00dev->clk)) + rt2x00dev->clk = NULL; + ++ set_bit(REQUIRE_EEPROM_FILE, &rt2x00dev->cap_flags); + rt2x00_set_chip_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC); + + retval = rt2x00soc_alloc_reg(rt2x00dev); +--- a/drivers/net/wireless/ralink/rt2x00/rt2x00soc.h ++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00soc.h +@@ -26,4 +26,13 @@ int rt2x00soc_resume(struct platform_dev + #define rt2x00soc_resume NULL + #endif /* CONFIG_PM */ + ++/* ++ * EEPROM file handlers. ++ */ ++#ifdef CPTCFG_RT2X00_LIB_EEPROM ++int rt2x00lib_read_eeprom(struct rt2x00_dev *rt2x00dev); ++#else ++#define rt2x00lib_read_eeprom NULL ++#endif /* CPTCFG_RT2X00_LIB_EEPROM */ ++ + #endif /* RT2X00SOC_H */ |