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add access to init script stored in progmem for avr

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This commit is contained in:
matthias.ringwald@gmail.com 2014-02-04 21:42:45 +00:00
parent d1fef1900d
commit b9fe9818fd
1 changed files with 15 additions and 1 deletions
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16
chipset-cc256x/bt_control_cc256x.c
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@ -52,6 +52,8 @@
* - store init script in .fartext and use assembly code to read from there * - store init script in .fartext and use assembly code to read from there
* - split into two arrays * - split into two arrays
* *
* Issues with AVR
* - Harvard architecture doesn't allow to store init script directly -> use avr-libc helpers
*/ */
#include "bt_control_cc256x.h" #include "bt_control_cc256x.h"
@ -64,6 +66,10 @@
#include "hal_compat.h" #include "hal_compat.h"
#endif #endif
#ifdef __AVR__
#include <avr/pgmspace.h>
#endif
#include "bt_control.h" #include "bt_control.h"
@ -201,7 +207,15 @@ static int bt_control_cc256x_next_cmd(void *config, uint8_t *hci_cmd_buffer){
int payload_len = hci_cmd_buffer[2]; int payload_len = hci_cmd_buffer[2];
FlashReadBlock(&hci_cmd_buffer[3], init_script_addr + init_script_offset, payload_len); // cmd payload FlashReadBlock(&hci_cmd_buffer[3], init_script_addr + init_script_offset, payload_len); // cmd payload
#else #elif defined (__AVR__)
// workaround: use memcpy_P to access init script in lower 64 kB of flash
memcpy_P(&hci_cmd_buffer[0], &cc256x_init_script[init_script_offset], 3);
init_script_offset += 3;
int payload_len = hci_cmd_buffer[2];
memcpy_P(&hci_cmd_buffer[3], &cc256x_init_script[init_script_offset], payload_len);
#else
// use memcpy with pointer // use memcpy with pointer
uint8_t * init_script_ptr = (uint8_t*) &cc256x_init_script[0]; uint8_t * init_script_ptr = (uint8_t*) &cc256x_init_script[0];