diff options
Diffstat (limited to 'drivers/staging/cx25821/cx25821-gpio.c')
| -rw-r--r-- | drivers/staging/cx25821/cx25821-gpio.c | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/drivers/staging/cx25821/cx25821-gpio.c b/drivers/staging/cx25821/cx25821-gpio.c deleted file mode 100644 index 29e43b03c85e..000000000000 --- a/drivers/staging/cx25821/cx25821-gpio.c +++ /dev/null @@ -1,98 +0,0 @@ -/* - * Driver for the Conexant CX25821 PCIe bridge - * - * Copyright (C) 2009 Conexant Systems Inc. - * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com> - * - * 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, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include "cx25821.h" - -/********************* GPIO stuffs *********************/ -void cx25821_set_gpiopin_direction(struct cx25821_dev *dev, - int pin_number, int pin_logic_value) -{ - int bit = pin_number; - u32 gpio_oe_reg = GPIO_LO_OE; - u32 gpio_register = 0; - u32 value = 0; - - /* Check for valid pinNumber */ - if (pin_number >= 47) - return; - - if (pin_number > 31) { - bit = pin_number - 31; - gpio_oe_reg = GPIO_HI_OE; - } - /* Here we will make sure that the GPIOs 0 and 1 are output. keep the - * rest as is */ - gpio_register = cx_read(gpio_oe_reg); - - if (pin_logic_value == 1) - value = gpio_register | Set_GPIO_Bit(bit); - else - value = gpio_register & Clear_GPIO_Bit(bit); - - cx_write(gpio_oe_reg, value); -} -EXPORT_SYMBOL(cx25821_set_gpiopin_direction); - -static void cx25821_set_gpiopin_logicvalue(struct cx25821_dev *dev, - int pin_number, int pin_logic_value) -{ - int bit = pin_number; - u32 gpio_reg = GPIO_LO; - u32 value = 0; - - /* Check for valid pinNumber */ - if (pin_number >= 47) - return; - - /* change to output direction */ - cx25821_set_gpiopin_direction(dev, pin_number, 0); - - if (pin_number > 31) { - bit = pin_number - 31; - gpio_reg = GPIO_HI; - } - - value = cx_read(gpio_reg); - - if (pin_logic_value == 0) - value &= Clear_GPIO_Bit(bit); - else - value |= Set_GPIO_Bit(bit); - - cx_write(gpio_reg, value); -} - -void cx25821_gpio_init(struct cx25821_dev *dev) -{ - if (dev == NULL) - return; - - switch (dev->board) { - case CX25821_BOARD_CONEXANT_ATHENA10: - default: - /* set GPIO 5 to select the path for Medusa/Athena */ - cx25821_set_gpiopin_logicvalue(dev, 5, 1); - mdelay(20); - break; - } - -} |