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osmo-e1-hardware
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icE1usb fw: Add function to enable/disable E1 led runner 

Also don't force enable the runner in the e1_platform_led_set
callback.

Due to GPIO shortage, the E1 leds control are multiplexed with
SPI so this adds a method to temporarely stop the runner so SPI
can be used.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Change-Id: Ie671daab5ee5e0b5f58de9d4fef1f0ca7d6d02b6
This commit is contained in:
Sylvain Munaut 2022-01-11 11:06:28 +01:00
parent 5848f14563
commit 394748ab86
2 changed files with 17 additions and 1 deletions
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15
firmware/ice40-riscv/icE1usb/misc.c
View File

@ -46,6 +46,18 @@ pdm_set(int chan, bool enable, unsigned value, bool normalize)
}
void
e1_led_run(void)
{
misc_regs->e1_led |= 0x100;
}
void
e1_led_pause(void)
{
misc_regs->e1_led &= 0xff;
}
void
e1_led_set(bool enable, uint8_t cfg)
{
@ -66,10 +78,11 @@ e1_platform_led_set(int port, enum e1_platform_led led,
tmp = misc_regs->e1_led;
tmp &= ~(3 << shift);
tmp |= 0x100 | ((state & 3) << shift);
tmp |= ((state & 3) << shift);
misc_regs->e1_led = tmp;
}
uint16_t
e1_tick_read(int port)
{

3
firmware/ice40-riscv/icE1usb/misc.h
View File

@ -26,7 +26,10 @@ enum pdm_chan {
void pdm_set(int chan, bool enable, unsigned value, bool normalize);
void e1_led_run(void);
void e1_led_pause(void);
void e1_led_set(bool enable, uint8_t cfg);
uint16_t e1_tick_read(int port);
void reboot(int fw);