From 52409fae3e4b8d16b68b61902fc09075cd97b75d Mon Sep 17 00:00:00 2001 From: Dominik Sliwa Date: Sun, 2 Jul 2017 16:41:37 +0200 Subject: Backports generated from 4.11 kernel Initial commit. Signed-off-by: Dominik Sliwa --- drivers/net/wireless/ralink/rt2x00/rt2x00soc.c | 164 +++++++++++++++++++++++++ 1 file changed, 164 insertions(+) create mode 100644 drivers/net/wireless/ralink/rt2x00/rt2x00soc.c (limited to 'drivers/net/wireless/ralink/rt2x00/rt2x00soc.c') diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00soc.c b/drivers/net/wireless/ralink/rt2x00/rt2x00soc.c new file mode 100644 index 0000000..29250f7 --- /dev/null +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00soc.c @@ -0,0 +1,164 @@ +/* + Copyright (C) 2004 - 2009 Ivo van Doorn + Copyright (C) 2004 - 2009 Felix Fietkau + + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, see . + */ + +/* + Module: rt2x00soc + Abstract: rt2x00 generic soc device routines. + */ + +#include +#include +#include +#include +#include + +#include "rt2x00.h" +#include "rt2x00soc.h" + +static void rt2x00soc_free_reg(struct rt2x00_dev *rt2x00dev) +{ + kfree(rt2x00dev->rf); + rt2x00dev->rf = NULL; + + kfree(rt2x00dev->eeprom); + rt2x00dev->eeprom = NULL; + + iounmap(rt2x00dev->csr.base); +} + +static int rt2x00soc_alloc_reg(struct rt2x00_dev *rt2x00dev) +{ + struct platform_device *pdev = to_platform_device(rt2x00dev->dev); + struct resource *res; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -ENODEV; + + rt2x00dev->csr.base = ioremap(res->start, resource_size(res)); + if (!rt2x00dev->csr.base) + return -ENOMEM; + + rt2x00dev->eeprom = kzalloc(rt2x00dev->ops->eeprom_size, GFP_KERNEL); + if (!rt2x00dev->eeprom) + goto exit; + + rt2x00dev->rf = kzalloc(rt2x00dev->ops->rf_size, GFP_KERNEL); + if (!rt2x00dev->rf) + goto exit; + + return 0; + +exit: + rt2x00_probe_err("Failed to allocate registers\n"); + rt2x00soc_free_reg(rt2x00dev); + + return -ENOMEM; +} + +int rt2x00soc_probe(struct platform_device *pdev, const struct rt2x00_ops *ops) +{ + struct ieee80211_hw *hw; + struct rt2x00_dev *rt2x00dev; + int retval; + + hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw); + if (!hw) { + rt2x00_probe_err("Failed to allocate hardware\n"); + return -ENOMEM; + } + + platform_set_drvdata(pdev, hw); + + rt2x00dev = hw->priv; + rt2x00dev->dev = &pdev->dev; + rt2x00dev->ops = ops; + rt2x00dev->hw = hw; + rt2x00dev->irq = platform_get_irq(pdev, 0); + rt2x00dev->name = pdev->dev.driver->name; + + rt2x00dev->clk = clk_get(&pdev->dev, NULL); + if (IS_ERR(rt2x00dev->clk)) + rt2x00dev->clk = NULL; + + rt2x00_set_chip_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC); + + retval = rt2x00soc_alloc_reg(rt2x00dev); + if (retval) + goto exit_free_device; + + retval = rt2x00lib_probe_dev(rt2x00dev); + if (retval) + goto exit_free_reg; + + return 0; + +exit_free_reg: + rt2x00soc_free_reg(rt2x00dev); + +exit_free_device: + ieee80211_free_hw(hw); + + return retval; +} +EXPORT_SYMBOL_GPL(rt2x00soc_probe); + +int rt2x00soc_remove(struct platform_device *pdev) +{ + struct ieee80211_hw *hw = platform_get_drvdata(pdev); + struct rt2x00_dev *rt2x00dev = hw->priv; + + /* + * Free all allocated data. + */ + rt2x00lib_remove_dev(rt2x00dev); + rt2x00soc_free_reg(rt2x00dev); + ieee80211_free_hw(hw); + + return 0; +} +EXPORT_SYMBOL_GPL(rt2x00soc_remove); + +#ifdef CONFIG_PM +int rt2x00soc_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct ieee80211_hw *hw = platform_get_drvdata(pdev); + struct rt2x00_dev *rt2x00dev = hw->priv; + + return rt2x00lib_suspend(rt2x00dev, state); +} +EXPORT_SYMBOL_GPL(rt2x00soc_suspend); + +int rt2x00soc_resume(struct platform_device *pdev) +{ + struct ieee80211_hw *hw = platform_get_drvdata(pdev); + struct rt2x00_dev *rt2x00dev = hw->priv; + + return rt2x00lib_resume(rt2x00dev); +} +EXPORT_SYMBOL_GPL(rt2x00soc_resume); +#endif /* CONFIG_PM */ + +/* + * rt2x00soc module information. + */ +MODULE_AUTHOR(DRV_PROJECT); +MODULE_VERSION(DRV_VERSION); +MODULE_DESCRIPTION("rt2x00 soc library"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3