From e1bbb64ec2ca8ddf1dec91ae1e08ef96ee53639a Mon Sep 17 00:00:00 2001 From: "H. Nikolaus Schaller" Date: Tue, 11 Jan 2011 17:31:17 +0100 Subject: fixed issue with submodules --- uart-monitor | 1 - uart-monitor/include/ns16550.h | 130 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 130 insertions(+), 1 deletion(-) delete mode 160000 uart-monitor create mode 100644 uart-monitor/include/ns16550.h (limited to 'uart-monitor/include/ns16550.h') diff --git a/uart-monitor b/uart-monitor deleted file mode 160000 index eb8b047..0000000 --- a/uart-monitor +++ /dev/null @@ -1 +0,0 @@ -Subproject commit eb8b047c29a2027fbdd841cd1289fa27ddb22d72 diff --git a/uart-monitor/include/ns16550.h b/uart-monitor/include/ns16550.h new file mode 100644 index 0000000..36d2d40 --- /dev/null +++ b/uart-monitor/include/ns16550.h @@ -0,0 +1,130 @@ +/* + *This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + * + * NS16550 Serial Port + * originally from linux source (arch/ppc/boot/ns16550.h) + * modified slightly to + * have addresses as offsets from CFG_ISA_BASE + * added a few more definitions + * added prototypes for ns16550.c + * reduced no of com ports to 2 + * modifications (c) Rob Taylor, Flying Pig Systems. 2000. + */ + +#if (CFG_NS16550_REG_SIZE == 1) +struct NS16550 { + unsigned char rbr; /* 0 */ + unsigned char ier; /* 1 */ + unsigned char fcr; /* 2 */ + unsigned char lcr; /* 3 */ + unsigned char mcr; /* 4 */ + unsigned char lsr; /* 5 */ + unsigned char msr; /* 6 */ + unsigned char scr; /* 7 */ +} __attribute__ ((packed)); +#elif (CFG_NS16550_REG_SIZE == 2) +struct NS16550 { + unsigned short rbr; /* 0 */ + unsigned short ier; /* 1 */ + unsigned short fcr; /* 2 */ + unsigned short lcr; /* 3 */ + unsigned short mcr; /* 4 */ + unsigned short lsr; /* 5 */ + unsigned short msr; /* 6 */ + unsigned short scr; /* 7 */ +} __attribute__ ((packed)); +#elif (CFG_NS16550_REG_SIZE == 4) +struct NS16550 { + unsigned long rbr; /* 0 */ + unsigned long ier; /* 1 */ + unsigned long fcr; /* 2 */ + unsigned long lcr; /* 3 */ + unsigned long mcr; /* 4 */ + unsigned long lsr; /* 5 */ + unsigned long msr; /* 6 */ + unsigned long scr; /* 7 */ +} __attribute__ ((packed)); +#elif (CFG_NS16550_REG_SIZE == -4) +struct NS16550 { + unsigned char rbr; /* 0 */ + int pad1:24; + unsigned char ier; /* 1 */ + int pad2:24; + unsigned char fcr; /* 2 */ + int pad3:24; + unsigned char lcr; /* 3 */ + int pad4:24; + unsigned char mcr; /* 4 */ + int pad5:24; + unsigned char lsr; /* 5 */ + int pad6:24; + unsigned char msr; /* 6 */ + int pad7:24; + unsigned char scr; /* 7 */ + int pad8:24; +#if defined(CONFIG_OMAP) + unsigned char mdr1; /* mode select reset TL16C750*/ +#endif +#ifdef CONFIG_OMAP1510 + int pad9:24; + unsigned long pad[10]; + unsigned char osc_12m_sel; + int pad10:24; +#endif +} __attribute__ ((packed)); +#else +#error "Please define NS16550 registers size." +#endif + +#define thr rbr +#define iir fcr +#define dll rbr +#define dlm ier + +typedef volatile struct NS16550 *NS16550_t; + +#define FCR_FIFO_EN 0x01 /* Fifo enable */ +#define FCR_RXSR 0x02 /* Receiver soft reset */ +#define FCR_TXSR 0x04 /* Transmitter soft reset */ + +#define MCR_DTR 0x01 +#define MCR_RTS 0x02 +#define MCR_DMA_EN 0x04 +#define MCR_TX_DFR 0x08 + +#define LCR_WLS_MSK 0x03 /* character length slect mask */ +#define LCR_WLS_5 0x00 /* 5 bit character length */ +#define LCR_WLS_6 0x01 /* 6 bit character length */ +#define LCR_WLS_7 0x02 /* 7 bit character length */ +#define LCR_WLS_8 0x03 /* 8 bit character length */ +#define LCR_STB 0x04 /* Number of stop Bits, off = 1, on = 1.5 or 2) */ +#define LCR_PEN 0x08 /* Parity eneble */ +#define LCR_EPS 0x10 /* Even Parity Select */ +#define LCR_STKP 0x20 /* Stick Parity */ +#define LCR_SBRK 0x40 /* Set Break */ +#define LCR_BKSE 0x80 /* Bank select enable */ + +#define LSR_DR 0x01 /* Data ready */ +#define LSR_OE 0x02 /* Overrun */ +#define LSR_PE 0x04 /* Parity error */ +#define LSR_FE 0x08 /* Framing error */ +#define LSR_BI 0x10 /* Break */ +#define LSR_THRE 0x20 /* Xmit holding register empty */ +#define LSR_TEMT 0x40 /* Xmitter empty */ +#define LSR_ERR 0x80 /* Error */ + +#ifdef CONFIG_OMAP1510 +#define OSC_12M_SEL 0x01 /* selects 6.5 * current clk div */ +#endif + +/* useful defaults for LCR */ +#define LCR_8N1 0x03 + +void NS16550_init (NS16550_t com_port, int baud_divisor); +void NS16550_putc (NS16550_t com_port, char c); +char NS16550_getc (NS16550_t com_port); +int NS16550_tstc (NS16550_t com_port); +void NS16550_reinit (NS16550_t com_port, int baud_divisor); -- cgit v1.1