Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

rp2040: Add support for PIO's jmp_pin #174

Merged
merged 1 commit into from
Feb 23, 2024
Merged

rp2040: Add support for PIO's jmp_pin #174

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 6 additions & 1 deletion board-support/raspberrypi-rp2040/src/hal/pio.zig
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,7 @@ pub const ClkDivOptions = struct {
};

pub const ExecOptions = struct {
jmp_pin: u5 = 0,
wrap: u5 = 31,
wrap_target: u5 = 0,
side_pindir: bool = false,
Expand Down Expand Up @@ -132,6 +133,7 @@ pub const LoadAndStartProgramOptions = struct {
clkdiv: ClkDivOptions,
shift: ShiftOptions = .{},
pin_mappings: PinMappingOptions = .{},
exec: ExecOptions = .{},
};

pub const Pio = enum(u1) {
Expand Down Expand Up @@ -254,18 +256,19 @@ pub const Pio = enum(u1) {
pub fn sm_set_exec_options(self: Pio, sm: StateMachine, options: ExecOptions) void {
const sm_regs = self.get_sm_regs(sm);
sm_regs.execctrl.modify(.{
// NOTE: EXEC_STALLED is RO
.WRAP_BOTTOM = options.wrap_target,
.WRAP_TOP = options.wrap,
.SIDE_PINDIR = @intFromBool(options.side_pindir),
.SIDE_EN = @intFromBool(options.side_set_optional),
.JMP_PIN = options.jmp_pin,

// TODO: plug in rest of the options
// STATUS_N
// STATUS_SEL
// OUT_STICKY
// INLINE_OUT_EN
// OUT_EN_SEL
// JMP_PIN
// EXEC_STALLED
});
}
Expand Down Expand Up @@ -514,6 +517,8 @@ pub const Pio = enum(u1) {
side_set.optional
else
false,

.jmp_pin = options.exec.jmp_pin,
},
});
}
Expand Down