From 02bfba6c616a4e4aedf0e36d742598c36334e228 Mon Sep 17 00:00:00 2001 From: Frank Gevaerts Date: Sun, 20 Apr 2008 16:51:09 +0000 Subject: Put USB controller structures in IRAM. This seems to make the connection much more stable on PP502x git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17191 a1c6a512-1295-4272-9138-f99709370657 --- firmware/usbstack/usb_serial.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'firmware/usbstack') diff --git a/firmware/usbstack/usb_serial.c b/firmware/usbstack/usb_serial.c index f390354..08eb121 100644 --- a/firmware/usbstack/usb_serial.c +++ b/firmware/usbstack/usb_serial.c @@ -53,10 +53,16 @@ struct usb_endpoint_descriptor __attribute__((aligned(2))) endpoint_descriptor = }; #define BUFFER_SIZE 512 /* Max 16k because of controller limitations */ +#if CONFIG_CPU == IMX31L static unsigned char send_buffer[BUFFER_SIZE] USBDEVBSS_ATTR __attribute__((aligned(32))); -static unsigned char receive_buffer[512] +static unsigned char receive_buffer[32] USBDEVBSS_ATTR __attribute__((aligned(32))); +#else +static unsigned char send_buffer[BUFFER_SIZE] __attribute__((aligned(32))); +static unsigned char receive_buffer[32] __attribute__((aligned(32))); +#endif + static bool busy_sending = false; static int buffer_start; static int buffer_length; -- cgit v1.1