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canboot_main: Rework "complete" handling

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Convert the "complete" command to use a regular task instead of custom
code in enter_bootloader().

Perform the reboot based on a timer so that it is not necessary to
query the low-level code for ack transmission status.

Use jump_to_application() instead of canbus_reboot() to start the user
code.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2022-05-10 15:05:40 -04:00 committed by Eric Callahan
parent 21469fea3e
commit 09a500cf90
4 changed files with 12 additions and 25 deletions
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23
src/canboot_main.c
View File

@ -7,7 +7,6 @@
#include <string.h> // strlen
#include "autoconf.h" // CONFIG_*
#include "board/misc.h" // udelay
#include "board/canbus.h" // canbus_send
#include "board/flash.h" // flash_read_block
#include "board/gpio.h" // gpio_in_setup
#include "canboot_main.h" // canboot_main
@ -18,7 +17,8 @@
#define REQUEST_SIG 0x5984E3FA6CA1589B // Random request sig
static uint8_t complete = 0;
static uint8_t complete;
static uint32_t complete_endtime;
void
command_complete(uint32_t *data)
@ -26,8 +26,17 @@ command_complete(uint32_t *data)
uint32_t out[3];
command_respond_ack(CMD_COMPLETE, out, ARRAY_SIZE(out));
complete = 1;
complete_endtime = timer_read_time() + timer_from_us(100000);
}
void
complete_task(void)
{
if (complete && timer_is_before(complete_endtime, timer_read_time()))
jump_to_application();
}
DECL_TASK(complete_task);
void
command_connect(uint32_t *data)
{
@ -93,16 +102,8 @@ enter_bootloader(void)
{
sched_run_init();
for (;;) {
for (;;)
sched_run_tasks();
if (complete && canbus_tx_clear())
// wait until we are complete and the ack has returned
break;
}
// Flash Complete, system reset
udelay(100000);
canbus_reboot();
}
// Main loop of program

6
src/generic/canbus.c
View File

@ -22,12 +22,6 @@ static uint8_t canbus_uuid[CANBUS_UUID_LEN];
static struct task_wake canbus_tx_wake;
static uint8_t transmit_buf[96], transmit_pos, transmit_max;
uint8_t
canbus_tx_clear(void)
{
return transmit_pos >= transmit_max;
}
void
canbus_notify_tx(void)
{

2
src/generic/canbus.h
View File

@ -11,13 +11,11 @@
int canbus_read(uint32_t *id, uint8_t *data);
int canbus_send(uint32_t id, uint32_t len, uint8_t *data);
void canbus_set_filter(uint32_t id);
void canbus_reboot(void);
// canbus.c
void canbus_notify_tx(void);
void canbus_notify_rx(void);
void canbus_process_data(uint32_t id, uint32_t len, uint8_t *data);
void canbus_set_uuid(void *data);
uint8_t canbus_tx_clear(void);
#endif // canbus.h

6
src/stm32/can.c
View File

@ -268,12 +268,6 @@ compute_btr(uint32_t pclock, uint32_t bitrate)
return make_btr(sjw, time_seg1, time_seg2, brp);
}
void
canbus_reboot(void)
{
NVIC_SystemReset();
}
void
can_init(void)
{