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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:52 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:52 +0000 |
commit | ca67b09c015d4af3ae3cce12aa72e60941dbb8b5 (patch) | |
tree | b7316d7b06c373e08dabb79a2c866c568e08f49e /debian/grub-extras/disabled/gpxe/src/drivers/net/ath5k/ath5k_gpio.c | |
parent | Adding upstream version 2.06. (diff) | |
download | grub2-debian/2.06-13+deb12u1.tar.xz grub2-debian/2.06-13+deb12u1.zip |
Adding debian version 2.06-13+deb12u1.debian/2.06-13+deb12u1debian
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | debian/grub-extras/disabled/gpxe/src/drivers/net/ath5k/ath5k_gpio.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/debian/grub-extras/disabled/gpxe/src/drivers/net/ath5k/ath5k_gpio.c b/debian/grub-extras/disabled/gpxe/src/drivers/net/ath5k/ath5k_gpio.c new file mode 100644 index 0000000..0e8a3e6 --- /dev/null +++ b/debian/grub-extras/disabled/gpxe/src/drivers/net/ath5k/ath5k_gpio.c @@ -0,0 +1,122 @@ +/* + * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org> + * Copyright (c) 2006-2008 Nick Kossifidis <mickflemm@gmail.com> + * + * Lightly modified for gPXE, July 2009, by Joshua Oreman <oremanj@rwcr.net>. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +FILE_LICENCE ( MIT ); + +/****************\ + GPIO Functions +\****************/ + +#include "ath5k.h" +#include "reg.h" +#include "base.h" + +/* + * Set GPIO inputs + */ +int ath5k_hw_set_gpio_input(struct ath5k_hw *ah, u32 gpio) +{ + if (gpio >= AR5K_NUM_GPIO) + return -EINVAL; + + ath5k_hw_reg_write(ah, + (ath5k_hw_reg_read(ah, AR5K_GPIOCR) & ~AR5K_GPIOCR_OUT(gpio)) + | AR5K_GPIOCR_IN(gpio), AR5K_GPIOCR); + + return 0; +} + +/* + * Set GPIO outputs + */ +int ath5k_hw_set_gpio_output(struct ath5k_hw *ah, u32 gpio) +{ + if (gpio >= AR5K_NUM_GPIO) + return -EINVAL; + + ath5k_hw_reg_write(ah, + (ath5k_hw_reg_read(ah, AR5K_GPIOCR) & ~AR5K_GPIOCR_OUT(gpio)) + | AR5K_GPIOCR_OUT(gpio), AR5K_GPIOCR); + + return 0; +} + +/* + * Get GPIO state + */ +u32 ath5k_hw_get_gpio(struct ath5k_hw *ah, u32 gpio) +{ + if (gpio >= AR5K_NUM_GPIO) + return 0xffffffff; + + /* GPIO input magic */ + return ((ath5k_hw_reg_read(ah, AR5K_GPIODI) & AR5K_GPIODI_M) >> gpio) & + 0x1; +} + +/* + * Set GPIO state + */ +int ath5k_hw_set_gpio(struct ath5k_hw *ah, u32 gpio, u32 val) +{ + u32 data; + + if (gpio >= AR5K_NUM_GPIO) + return -EINVAL; + + /* GPIO output magic */ + data = ath5k_hw_reg_read(ah, AR5K_GPIODO); + + data &= ~(1 << gpio); + data |= (val & 1) << gpio; + + ath5k_hw_reg_write(ah, data, AR5K_GPIODO); + + return 0; +} + +/* + * Initialize the GPIO interrupt (RFKill switch) + */ +void ath5k_hw_set_gpio_intr(struct ath5k_hw *ah, unsigned int gpio, + u32 interrupt_level) +{ + u32 data; + + if (gpio >= AR5K_NUM_GPIO) + return; + + /* + * Set the GPIO interrupt + */ + data = (ath5k_hw_reg_read(ah, AR5K_GPIOCR) & + ~(AR5K_GPIOCR_INT_SEL(gpio) | AR5K_GPIOCR_INT_SELH | + AR5K_GPIOCR_INT_ENA | AR5K_GPIOCR_OUT(gpio))) | + (AR5K_GPIOCR_INT_SEL(gpio) | AR5K_GPIOCR_INT_ENA); + + ath5k_hw_reg_write(ah, interrupt_level ? data : + (data | AR5K_GPIOCR_INT_SELH), AR5K_GPIOCR); + + ah->ah_imr |= AR5K_IMR_GPIO; + + /* Enable GPIO interrupts */ + AR5K_REG_ENABLE_BITS(ah, AR5K_PIMR, AR5K_IMR_GPIO); +} + |