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iPod Nano2G: add IPOD_ACCESSORY_PROTOCOL

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Change-Id: I78a19972624504bc802d96b9b8e9cec132164c2c
This commit is contained in:
Cástor Muñoz 2016-05-14 14:24:49 +02:00
parent 60fb707203
commit 9a4cd2eaee
5 changed files with 183 additions and 20 deletions
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17
firmware/target/arm/s5l8700/uart-s5l8701.c
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@ -68,7 +68,7 @@ static uint8_t clockgate_uartc[S5L8701_N_UARTC] = {
CLOCKGATE_UARTC0, CLOCKGATE_UARTC1, CLOCKGATE_UARTC2 };
static int intmsk_uart[S5L8701_N_UARTC] = {
INTMSK_UART0, INTMSK_UART1, INTMSK_UART2 };
INTMSK_EINTG0, INTMSK_UART1, INTMSK_UART2 };
/*
* Device level functions specific to S5L8701
@ -107,6 +107,7 @@ void uart_target_disable_gpio(int uart_id, int port_id)
void uart_target_enable_irq(int uart_id, int port_id)
{
(void) port_id;
if (uart_id == 0) GPIOIC_INTEN(0) = 0x200;
INTMSK |= intmsk_uart[uart_id];
}
@ -114,11 +115,13 @@ void uart_target_disable_irq(int uart_id, int port_id)
{
(void) port_id;
INTMSK &= ~intmsk_uart[uart_id];
if (uart_id == 0) GPIOIC_INTEN(0) = 0;
}
void uart_target_clear_irq(int uart_id, int port_id)
{
(void) port_id;
if (uart_id == 0) GPIOIC_INTSTAT(0) = 0x200;
SRCPND |= intmsk_uart[uart_id];
}
@ -135,10 +138,20 @@ void uart_target_disable_clocks(int uart_id)
/*
* ISRs
*/
void ICODE_ATTR INT_UART0(void)
/* On Nano2G, PORT0 interrupts are not used when iAP is disabled */
#if !defined(IPOD_NANO2G) || defined(IPOD_ACCESSORY_PROTOCOL)
/*
* UART0 IRQ is connected to EINTG0, this is a quick patch, a "real"
* EINT handler will be needed if in future we use more than one IRQ
* on this group.
*/
void ICODE_ATTR EINT_G0(void)
{
GPIOIC_INTSTAT(0) = 0x200; /* clear external IRQ */
uartc_callback(&s5l8701_uartc0, 0);
}
#endif
/* UARTC1,2 not used on Nano2G */
#ifndef IPOD_NANO2G