diff options
Diffstat (limited to 'arch_msm7k/gpio.c')
| -rw-r--r-- | arch_msm7k/gpio.c | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/arch_msm7k/gpio.c b/arch_msm7k/gpio.c deleted file mode 100644 index f4b0705..0000000 --- a/arch_msm7k/gpio.c +++ /dev/null @@ -1,181 +0,0 @@ -/* - * Copyright (c) 2008, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <boot/boot.h> -#include <msm7k/gpio.h> - -/* gross */ - -typedef struct gpioregs gpioregs; - -struct gpioregs -{ - unsigned out; - unsigned in; - unsigned int_status; - unsigned int_clear; - unsigned int_en; - unsigned int_edge; - unsigned int_pos; - unsigned oe; -}; - -static gpioregs GPIO_REGS[] = { - { - .out = GPIO_OUT_0, - .in = GPIO_IN_0, - .int_status = GPIO_INT_STATUS_0, - .int_clear = GPIO_INT_CLEAR_0, - .int_en = GPIO_INT_EN_0, - .int_edge = GPIO_INT_EDGE_0, - .int_pos = GPIO_INT_POS_0, - .oe = GPIO_OE_0, - }, - { - .out = GPIO_OUT_1, - .in = GPIO_IN_1, - .int_status = GPIO_INT_STATUS_1, - .int_clear = GPIO_INT_CLEAR_1, - .int_en = GPIO_INT_EN_1, - .int_edge = GPIO_INT_EDGE_1, - .int_pos = GPIO_INT_POS_1, - .oe = GPIO_OE_1, - }, - { - .out = GPIO_OUT_2, - .in = GPIO_IN_2, - .int_status = GPIO_INT_STATUS_2, - .int_clear = GPIO_INT_CLEAR_2, - .int_en = GPIO_INT_EN_2, - .int_edge = GPIO_INT_EDGE_2, - .int_pos = GPIO_INT_POS_2, - .oe = GPIO_OE_2, - }, - { - .out = GPIO_OUT_3, - .in = GPIO_IN_3, - .int_status = GPIO_INT_STATUS_3, - .int_clear = GPIO_INT_CLEAR_3, - .int_en = GPIO_INT_EN_3, - .int_edge = GPIO_INT_EDGE_3, - .int_pos = GPIO_INT_POS_3, - .oe = GPIO_OE_3, - }, - { - .out = GPIO_OUT_4, - .in = GPIO_IN_4, - .int_status = GPIO_INT_STATUS_4, - .int_clear = GPIO_INT_CLEAR_4, - .int_en = GPIO_INT_EN_4, - .int_edge = GPIO_INT_EDGE_4, - .int_pos = GPIO_INT_POS_4, - .oe = GPIO_OE_4, - }, -}; - -static gpioregs *find_gpio(unsigned n, unsigned *bit) -{ - if(n > 106) return 0; - if(n > 94) { - *bit = 1 << (n - 95); - return GPIO_REGS + 4; - } - if(n > 67) { - *bit = 1 << (n - 68); - return GPIO_REGS + 3; - } - if(n > 42) { - *bit = 1 << (n - 43); - return GPIO_REGS + 2; - } - if(n > 15) { - *bit = 1 << (n - 16); - return GPIO_REGS + 1; - } - *bit = 1 << n; - return GPIO_REGS + 0; -} - -void gpio_output_enable(unsigned n, unsigned out) -{ - gpioregs *r; - unsigned b; - unsigned v; - - if((r = find_gpio(n, &b)) == 0) return; - - v = readl(r->oe); - if(out) { - writel(v | b, r->oe); - } else { - writel(v & (~b), r->oe); - } -} - -void gpio_write(unsigned n, unsigned on) -{ - gpioregs *r; - unsigned b; - unsigned v; - - if((r = find_gpio(n, &b)) == 0) return; - - v = readl(r->out); - if(on) { - writel(v | b, r->out); - } else { - writel(v & (~b), r->out); - } -} - -int gpio_read(unsigned n) -{ - gpioregs *r; - unsigned b; - - if((r = find_gpio(n, &b)) == 0) return 0; - - return (readl(r->in) & b) ? 1 : 0; -} - -void gpio_dir(int nr, int out) -{ - gpio_output_enable(nr, out); -} - -void gpio_set(int nr, int set) -{ - gpio_write(nr, set); -} - -int gpio_get(int nr) -{ - return gpio_read(nr); -} - - |