diff options
Diffstat (limited to 'drivers/fmc/fmc-trivial.c')
-rw-r--r-- | drivers/fmc/fmc-trivial.c | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/drivers/fmc/fmc-trivial.c b/drivers/fmc/fmc-trivial.c deleted file mode 100644 index 8defdee3e3a3..000000000000 --- a/drivers/fmc/fmc-trivial.c +++ /dev/null @@ -1,103 +0,0 @@ -/* - * Copyright (C) 2012 CERN (www.cern.ch) - * Author: Alessandro Rubini <rubini@gnudd.com> - * - * Permission to use, copy, modify, and/or 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"; the copyright holders disclaim - * all warranties and liabilities, to the extent permitted by - * applicable law. - */ - -/* A trivial fmc driver that can load a gateware file and reports interrupts */ -#include <linux/module.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/gpio.h> -#include <linux/fmc.h> - -static struct fmc_driver t_drv; /* initialized later */ - -static irqreturn_t t_handler(int irq, void *dev_id) -{ - struct fmc_device *fmc = dev_id; - - fmc_irq_ack(fmc); - dev_info(&fmc->dev, "received irq %i\n", irq); - return IRQ_HANDLED; -} - -static struct fmc_gpio t_gpio[] = { - { - .gpio = FMC_GPIO_IRQ(0), - .mode = GPIOF_DIR_IN, - .irqmode = IRQF_TRIGGER_RISING, - }, { - .gpio = FMC_GPIO_IRQ(1), - .mode = GPIOF_DIR_IN, - .irqmode = IRQF_TRIGGER_RISING, - } -}; - -static int t_probe(struct fmc_device *fmc) -{ - int ret; - int index = 0; - - index = fmc_validate(fmc, &t_drv); - if (index < 0) - return -EINVAL; /* not our device: invalid */ - - ret = fmc_irq_request(fmc, t_handler, "fmc-trivial", IRQF_SHARED); - if (ret < 0) - return ret; - /* ignore error code of call below, we really don't care */ - fmc_gpio_config(fmc, t_gpio, ARRAY_SIZE(t_gpio)); - - ret = fmc_reprogram(fmc, &t_drv, "", 0); - if (ret == -EPERM) /* programming not supported */ - ret = 0; - if (ret < 0) - fmc_irq_free(fmc); - - /* FIXME: reprogram LM32 too */ - return ret; -} - -static int t_remove(struct fmc_device *fmc) -{ - fmc_irq_free(fmc); - return 0; -} - -static struct fmc_driver t_drv = { - .version = FMC_VERSION, - .driver.name = KBUILD_MODNAME, - .probe = t_probe, - .remove = t_remove, - /* no table, as the current match just matches everything */ -}; - - /* We accept the generic parameters */ -FMC_PARAM_BUSID(t_drv); -FMC_PARAM_GATEWARE(t_drv); - -static int t_init(void) -{ - int ret; - - ret = fmc_driver_register(&t_drv); - return ret; -} - -static void t_exit(void) -{ - fmc_driver_unregister(&t_drv); -} - -module_init(t_init); -module_exit(t_exit); - -MODULE_LICENSE("Dual BSD/GPL"); |