altos: Deal with cc1201 limitations

[fw/altos] / src / drivers / ao_cc1200.c

diff --git a/src/drivers/ao_cc1200.c b/src/drivers/ao_cc1200.c
index 105e0d50a80aa072a2147248d1cf57edd4a0e8e2..6f04380300c59c8547e2fd3e3f85cf811dc7d426 100644 (file)
--- a/src/drivers/ao_cc1200.c
+++ b/src/drivers/ao_cc1200.c
@@ -25,6 +25,8 @@
 #include <ao_pad.h>
 #endif
 
+static uint8_t cc1201;
+
 static uint8_t ao_radio_mutex;
 
 static uint8_t ao_radio_wake;          /* radio ready. Also used as sleep address */
@@ -51,9 +53,7 @@ extern const uint32_t ao_radio_cal;
 #define FOSC   40000000
 #endif
 
-#ifndef AO_CC1200_SPI_SPEED
-#error AO_CC1200_SPI_SPEED undefined
-#endif
+#define AO_CC1200_SPI_SPEED    ao_spi_speed(7700000)   /* 7.7MHz max for extended memory reads */
 
 #define ao_radio_select()      ao_spi_get_mask(AO_CC1200_SPI_CS_PORT,(1 << AO_CC1200_SPI_CS_PIN),AO_CC1200_SPI_BUS,AO_CC1200_SPI_SPEED)
 #define ao_radio_deselect()    ao_spi_put_mask(AO_CC1200_SPI_CS_PORT,(1 << AO_CC1200_SPI_CS_PIN),AO_CC1200_SPI_BUS)
@@ -331,13 +331,24 @@ ao_radio_idle(void)
 #define PACKET_CHAN_BW_384     ((CC1200_CHAN_BW_ADC_CIC_DECFACT_12 << CC1200_CHAN_BW_ADC_CIC_DECFACT) | \
                                 (16 << CC1200_CHAN_BW_BB_CIC_DECFACT))
 
+/*
+ * CC1201 doesn't support our low bandwidth receive setups, so we use
+ * larger values for that part, leaving the bandwidth at over 50kHz
+ */
+
 /* 200 / 10 = 20 */
-#define PACKET_CHAN_BW_96      ((CC1200_CHAN_BW_ADC_CIC_DECFACT_48 << CC1200_CHAN_BW_ADC_CIC_DECFACT) | \
-                                (16 << CC1200_CHAN_BW_BB_CIC_DECFACT))
+#define PACKET_CHAN_BW_96_CC1200       ((CC1200_CHAN_BW_ADC_CIC_DECFACT_48 << CC1200_CHAN_BW_ADC_CIC_DECFACT) | \
+                                        (16 << CC1200_CHAN_BW_BB_CIC_DECFACT))
+
+#define PACKET_CHAN_BW_96_CC1201       ((CC1200_CHAN_BW_ADC_CIC_DECFACT_48 << CC1200_CHAN_BW_ADC_CIC_DECFACT) | \
+                                        (8 << CC1200_CHAN_BW_BB_CIC_DECFACT))
 
 /* 200 / 25 = 8 */
-#define PACKET_CHAN_BW_24      ((CC1200_CHAN_BW_ADC_CIC_DECFACT_48 << CC1200_CHAN_BW_ADC_CIC_DECFACT) | \
-                                (44 << CC1200_CHAN_BW_BB_CIC_DECFACT))
+#define PACKET_CHAN_BW_24_CC1200       ((CC1200_CHAN_BW_ADC_CIC_DECFACT_48 << CC1200_CHAN_BW_ADC_CIC_DECFACT) | \
+                                        (44 << CC1200_CHAN_BW_BB_CIC_DECFACT))
+
+#define PACKET_CHAN_BW_24_CC1201       ((CC1200_CHAN_BW_ADC_CIC_DECFACT_48 << CC1200_CHAN_BW_ADC_CIC_DECFACT) | \
+                                        (8 << CC1200_CHAN_BW_BB_CIC_DECFACT))
 
 static const uint16_t packet_setup[] = {
        CC1200_SYMBOL_RATE1,            ((PACKET_SYMBOL_RATE_M >> 8) & 0xff),
@@ -379,7 +390,6 @@ static const uint16_t packet_setup_96[] = {
                                 (PACKET_DEV_E_96 << CC1200_MODCFG_DEV_E_DEV_E)),
        CC1200_SYMBOL_RATE2,    ((PACKET_SYMBOL_RATE_E_96 << CC1200_SYMBOL_RATE2_DATARATE_E) |
                                 (((PACKET_SYMBOL_RATE_M >> 16) & CC1200_SYMBOL_RATE2_DATARATE_M_19_16_MASK) << CC1200_SYMBOL_RATE2_DATARATE_M_19_16)),
-       CC1200_CHAN_BW,         PACKET_CHAN_BW_96,
         CC1200_MDMCFG2,                                  /* General Modem Parameter Configuration Reg. 2 */
                ((CC1200_MDMCFG2_ASK_SHAPE_8 << CC1200_MDMCFG2_ASK_SHAPE) |
                 (CC1200_MDMCFG2_SYMBOL_MAP_CFG_MODE_0 << CC1200_MDMCFG2_SYMBOL_MAP_CFG) |
@@ -394,7 +404,6 @@ static const uint16_t packet_setup_24[] = {
                                 (PACKET_DEV_E_24 << CC1200_MODCFG_DEV_E_DEV_E)),
        CC1200_SYMBOL_RATE2,    ((PACKET_SYMBOL_RATE_E_24 << CC1200_SYMBOL_RATE2_DATARATE_E) |
                                 (((PACKET_SYMBOL_RATE_M >> 16) & CC1200_SYMBOL_RATE2_DATARATE_M_19_16_MASK) << CC1200_SYMBOL_RATE2_DATARATE_M_19_16)),
-       CC1200_CHAN_BW,         PACKET_CHAN_BW_24,
         CC1200_MDMCFG2,                                  /* General Modem Parameter Configuration Reg. 2 */
                ((CC1200_MDMCFG2_ASK_SHAPE_8 << CC1200_MDMCFG2_ASK_SHAPE) |
                 (CC1200_MDMCFG2_SYMBOL_MAP_CFG_MODE_0 << CC1200_MDMCFG2_SYMBOL_MAP_CFG) |
@@ -616,9 +625,17 @@ ao_radio_set_mode(uint16_t new_mode)
                        break;
                case AO_RADIO_RATE_9600:
                        ao_radio_set_regs(packet_setup_96);
+                       if (cc1201)
+                               ao_radio_reg_write(CC1200_CHAN_BW, PACKET_CHAN_BW_96_CC1201);
+                       else
+                               ao_radio_reg_write(CC1200_CHAN_BW, PACKET_CHAN_BW_96_CC1200);
                        break;
                case AO_RADIO_RATE_2400:
                        ao_radio_set_regs(packet_setup_24);
+                       if (cc1201)
+                               ao_radio_reg_write(CC1200_CHAN_BW, PACKET_CHAN_BW_24_CC1201);
+                       else
+                               ao_radio_reg_write(CC1200_CHAN_BW, PACKET_CHAN_BW_24_CC1200);
                        break;
                }
        }
@@ -665,6 +682,11 @@ static uint8_t     ao_radio_configured = 0;
 static void
 ao_radio_setup(void)
 {
+       uint8_t partnumber = ao_radio_reg_read(CC1200_PARTNUMBER);
+
+       if (partnumber == CC1200_PARTNUMBER_CC1201)
+               cc1201 = 1;
+
        ao_radio_strobe(CC1200_SRES);
 
        ao_radio_set_regs(radio_setup);
@@ -721,8 +743,8 @@ ao_radio_state(void)
        return (ao_radio_status() >> CC1200_STATUS_STATE) & CC1200_STATUS_STATE_MASK;
 }
 
-#if CC1200_DEBUG
-void
+#if CC1200_DEBUG_
+static void
 ao_radio_show_state(char *where)
 {
        printf("%s: state %d len %d rxbytes %d\n",
@@ -1322,7 +1344,7 @@ static void ao_radio_packet(void) {
        ao_radio_send(packet, sizeof (packet));
 }
 
-void
+static void
 ao_radio_test_recv(void)
 {
        static uint8_t  bytes[34];