From: Keith Packard <keithp@keithp.com>
Date: Thu, 23 Jan 2025 17:21:26 +0000 (-0800)
Subject: altos: Add ao_radio_post (power-on self-test) for cc1200
X-Git-Tag: 1.9.20~1^2~24
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=adb1df0ae200d4aa37fed5a80d5be8cab305b1b3;p=fw%2Faltos

altos: Add ao_radio_post (power-on self-test) for cc1200

This function checks to make sure the radio chip is present on the SPI
bus.

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/src/drivers/ao_cc1200.c b/src/drivers/ao_cc1200.c
index ed1d298e..b3a1e575 100644
--- a/src/drivers/ao_cc1200.c
+++ b/src/drivers/ao_cc1200.c
@@ -1456,6 +1456,22 @@ static const struct ao_cmds ao_radio_cmds[] = {
 	{ 0, NULL }
 };
 
+/* Make sure the radio is alive */
+bool
+ao_radio_post(void)
+{
+	uint8_t	partnum;
+
+	partnum = ao_radio_reg_read(CC1200_PARTNUMBER);
+	switch (partnum) {
+	case CC1200_PARTNUMBER_CC1200:
+	case CC1200_PARTNUMBER_CC1201:
+		return true;
+	default:
+		return false;
+	}
+}
+
 void
 ao_radio_init(void)
 {
diff --git a/src/kernel/ao.h b/src/kernel/ao.h
index 0437cb07..1cfe29e9 100644
--- a/src/kernel/ao.h
+++ b/src/kernel/ao.h
@@ -667,6 +667,9 @@ ao_radio_test_on(void);
 void
 ao_radio_test_off(void);
 
+bool
+ao_radio_post(void);
+
 void
 ao_radio_init(void);