2 * Copyright © 2012 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
18 #ifndef _AO_ARCH_FUNCS_H_
19 #define _AO_ARCH_FUNCS_H_
23 extern uint8_t ao_spi_mutex[STM_NUM_SPI];
26 ao_spi_get(uint8_t spi_index);
29 ao_spi_put(uint8_t spi_index);
32 ao_spi_send(void *block, uint16_t len, uint8_t spi_index);
35 ao_spi_recv(void *block, uint16_t len, uint8_t spi_index);
40 #define ao_spi_get_mask(reg,mask,bus) do { \
42 (reg).bsrr = ((uint32_t) mask) << 16; \
45 #define ao_spi_put_mask(reg,mask,bus) do { \
50 #define ao_stm_enable_port(port) do { \
51 if (&(port) == &stm_gpioa) \
52 stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_GPIOAEN); \
53 else if (&(port) == &stm_gpiob) \
54 stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_GPIOBEN); \
55 else if (&(port) == &stm_gpioc) \
56 stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_GPIOCEN); \
57 else if (&(port) == &stm_gpiod) \
58 stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_GPIODEN); \
59 else if (&(port) == &stm_gpioe) \
60 stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_GPIOEEN); \
64 #define ao_stm_enable_cs(port,bit) do { \
65 stm_gpio_set(&(port), bit, 1); \
66 stm_moder_set(&(port), bit, STM_MODER_OUTPUT); \
69 #define ao_spi_init_cs(port, mask) do { \
70 ao_stm_enable_port(port); \
71 if (mask & 0x0001) ao_stm_enable_cs(port, 0); \
72 if (mask & 0x0002) ao_stm_enable_cs(port, 1); \
73 if (mask & 0x0004) ao_stm_enable_cs(port, 2); \
74 if (mask & 0x0008) ao_stm_enable_cs(port, 3); \
75 if (mask & 0x0010) ao_stm_enable_cs(port, 4); \
76 if (mask & 0x0020) ao_stm_enable_cs(port, 5); \
77 if (mask & 0x0040) ao_stm_enable_cs(port, 6); \
78 if (mask & 0x0080) ao_stm_enable_cs(port, 7); \
79 if (mask & 0x0100) ao_stm_enable_cs(port, 8); \
80 if (mask & 0x0200) ao_stm_enable_cs(port, 9); \
81 if (mask & 0x0400) ao_stm_enable_cs(port, 10); \
82 if (mask & 0x0800) ao_stm_enable_cs(port, 11); \
83 if (mask & 0x1000) ao_stm_enable_cs(port, 12); \
84 if (mask & 0x2000) ao_stm_enable_cs(port, 13); \
85 if (mask & 0x4000) ao_stm_enable_cs(port, 14); \
86 if (mask & 0x8000) ao_stm_enable_cs(port, 15); \
92 extern uint8_t ao_dma_done[STM_NUM_DMA];
95 ao_dma_set_transfer(uint8_t index,
96 volatile void *peripheral,
102 ao_dma_set_isr(uint8_t index, void (*isr)(void));
105 ao_dma_start(uint8_t index);
108 ao_dma_done_transfer(uint8_t index);
111 ao_dma_abort(uint8_t index);
114 ao_dma_alloc(uint8_t index);
122 ao_i2c_get(uint8_t i2c_index);
125 ao_i2c_start(uint8_t i2c_index, uint16_t address);
128 ao_i2c_put(uint8_t i2c_index);
131 ao_i2c_send(void *block, uint16_t len, uint8_t i2c_index);
134 ao_i2c_recv(void *block, uint16_t len, uint8_t i2c_index);
139 #endif /* _AO_ARCH_FUNCS_H_ */