core: add phy regs definition

core/include/esp/phy_regs.h

@@ -0,0 +1,74 @@
+/* esp/phy_regs.h
+ *
+ * ESP8266 PHY register definitions
+ *
+ * Not compatible with ESP SDK register access code.
+ */
+
+#ifndef _ESP_PHY_REGS_H
+#define _ESP_PHY_REGS_H
+
+#include "esp/types.h"
+#include "common_macros.h"
+
+#define PHY_BASE 0x60000500
+#define PHY (*(struct PHY_REGS *)(PHY_BASE))
+
+struct PHY_REGS {
+    // 0x00 — 0x60
+    uint32_t volatile _gap0[24];
+    // TX digital predistortion control
+    // 0x60
+    uint32_t volatile TX_DPD;
+    // 0x64 — 0x7c
+    uint32_t volatile _gap1[6];
+    // IQ imbalance estimation control
+    // 0x7c
+    uint32_t volatile IQ_EST;
+    // Looks like RSSI,
+    // may be per OFDM subcarrier
+    // 0x80
+    uint32_t volatile RX_IQ_0;
+    // 0x84
+    uint32_t volatile RX_IQ_1;
+    // 0x88
+    uint32_t volatile RX_IQ_2;
+    // 0x8c
+    uint32_t volatile RX_IQ_3;
+    // RX gain control
+    // 0x90
+    uint32_t volatile RX_GAIN_CTL;
+    // Whatever pbus is, these registers controls it
+    // 0x94
+    uint32_t volatile PBUS_CTL_0;
+    // 0x98
+    uint32_t volatile PBUS_CTL_1;
+    // 0x9C
+    uint32_t volatile PBUS_CTL_2;
+    // 0xA0
+    uint32_t volatile PBUS_CTL_3;
+    uint32_t volatile _gap2[5];
+    // Looks like baseband synthesizer control regs
+    // 0xB8
+    uint32_t volatile BB_CTL_0;
+    // 0xBC
+    uint32_t volatile BB_CTL_1;
+    // 0xC0
+    uint32_t volatile BB_CTL_2;
+    // 0xC4
+    uint32_t volatile BB_CTL_3;
+    // These registers do exist but I don't know
+    // what they are for.
+    // 0xC8
+    uint32_t volatile UNK_0;
+    uint32_t volatile UNK_1;
+    uint32_t volatile UNK_2;
+    uint32_t volatile UNK_3;
+    uint32_t volatile UNK_4;
+};
+
+_Static_assert((uintptr_t) &PHY.TX_DPD == 0x60000560, "RF PHY TX_DPD address");
+_Static_assert((uintptr_t) &PHY.IQ_EST == 0x6000057C, "RF PHY IQ_EST address");
+_Static_assert((uintptr_t) &PHY.BB_CTL_3 == 0x600005C4, "RF PHY BB_CTL_3 address");
+
+#endif /* _ESP_PHY_REGS_H */