altos/lpc: Disable JTAG when using pins for GPIO

[fw/altos] / src / lpc / ao_arch_funcs.h

diff --git a/src/lpc/ao_arch_funcs.h b/src/lpc/ao_arch_funcs.h
index ff8a184d28198252bbff6787456d9cb9491f9fee..69f2cbfbf971fc9ea671dc4b8bb377e3582eeb7f 100644 (file)
--- a/src/lpc/ao_arch_funcs.h
+++ b/src/lpc/ao_arch_funcs.h
@@ -30,8 +30,19 @@
 
 #define ao_gpio_get(port, bit, pin)    (lpc_gpio.byte[lpc_all_bit(port,bit)])
 
 
 #define ao_gpio_get(port, bit, pin)    (lpc_gpio.byte[lpc_all_bit(port,bit)])
 

+#define PORT0_JTAG_REGS        ((1 << 11) | (1 << 12) | (1 << 14))
+
+static inline void lpc_set_gpio(int port, int bit) {
+       if (port == 0 && (1 << bit) & (PORT0_JTAG_REGS)) {
+               vuint32_t *_ioconf = &lpc_ioconf.pio0_0 + ((port)*24+(bit));
+
+               *_ioconf = (*_ioconf & ~LPC_IOCONF_FUNC_MASK) | LPC_IOCONF_FUNC_PIO0_11;
+       }
+}
+

 #define ao_enable_output(port,bit,pin,v) do {                  \
                ao_enable_port(port);                           \
 #define ao_enable_output(port,bit,pin,v) do {                  \
                ao_enable_port(port);                           \

+               lpc_set_gpio(port,bit);                         \

                ao_gpio_set(port, bit, pin, v);                 \
                lpc_gpio.dir[port] |= (1 << bit);               \
        } while (0)
                ao_gpio_set(port, bit, pin, v);                 \
                lpc_gpio.dir[port] |= (1 << bit);               \
        } while (0)


@@ -52,6 +63,7 @@
 
 #define ao_enable_input(port,bit,mode) do {                            \
                ao_enable_port(port);                                   \
 
 #define ao_enable_input(port,bit,mode) do {                            \
                ao_enable_port(port);                                   \

+               lpc_set_gpio(port,bit);                                 \

                lpc_gpio.dir[port] &= ~(1 << bit);                      \
                ao_gpio_set_mode(port,bit,mode);                        \
        } while (0)
                lpc_gpio.dir[port] &= ~(1 << bit);                      \
                ao_gpio_set_mode(port,bit,mode);                        \
        } while (0)