From 5be36d22b28f01e5074f78b29aa6128da0a53641 Mon Sep 17 00:00:00 2001 From: Graf Yang Date: Fri, 25 Apr 2008 03:09:15 +0800 Subject: [Blackfin] arch: add Blackfin on-chip SIR IrDA driver support - add platform device resources in board files - add new bfin_sir.h to each machines Signed-off-by: Graf Yang Signed-off-by: Bryan Wu --- include/asm-blackfin/mach-bf548/bfin_serial_5xx.h | 48 ++++--- include/asm-blackfin/mach-bf548/bfin_sir.h | 149 ++++++++++++++++++++++ include/asm-blackfin/mach-bf548/blackfin.h | 15 +++ 3 files changed, 196 insertions(+), 16 deletions(-) create mode 100644 include/asm-blackfin/mach-bf548/bfin_sir.h (limited to 'include/asm-blackfin/mach-bf548') diff --git a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h index 7e6339f62a50..6547027cd3e6 100644 --- a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h @@ -1,22 +1,38 @@ +/* + * file: include/asm-blackfin/mach-bf548/bfin_serial_5xx.h + * based on: + * author: + * + * created: + * description: + * blackfin serial driver head file + * rev: + * + * modified: + * + * + * bugs: enter bugs at http://blackfin.uclinux.org/ + * + * this program is free software; you can redistribute it and/or modify + * it under the terms of the gnu general public license as published by + * the free software foundation; either version 2, or (at your option) + * any later version. + * + * this program is distributed in the hope that it will be useful, + * but without any warranty; without even the implied warranty of + * merchantability or fitness for a particular purpose. see the + * gnu general public license for more details. + * + * you should have received a copy of the gnu general public license + * along with this program; see the file copying. + * if not, write to the free software foundation, + * 59 temple place - suite 330, boston, ma 02111-1307, usa. + */ + #include #include #include -#define NR_PORTS 4 - -#define OFFSET_DLL 0x00 /* Divisor Latch (Low-Byte) */ -#define OFFSET_DLH 0x04 /* Divisor Latch (High-Byte) */ -#define OFFSET_GCTL 0x08 /* Global Control Register */ -#define OFFSET_LCR 0x0C /* Line Control Register */ -#define OFFSET_MCR 0x10 /* Modem Control Register */ -#define OFFSET_LSR 0x14 /* Line Status Register */ -#define OFFSET_MSR 0x18 /* Modem Status Register */ -#define OFFSET_SCR 0x1C /* SCR Scratch Register */ -#define OFFSET_IER_SET 0x20 /* Set Interrupt Enable Register */ -#define OFFSET_IER_CLEAR 0x24 /* Clear Interrupt Enable Register */ -#define OFFSET_THR 0x28 /* Transmit Holding register */ -#define OFFSET_RBR 0x2C /* Receive Buffer register */ - #define UART_GET_CHAR(uart) bfin_read16(((uart)->port.membase + OFFSET_RBR)) #define UART_GET_DLL(uart) bfin_read16(((uart)->port.membase + OFFSET_DLL)) #define UART_GET_DLH(uart) bfin_read16(((uart)->port.membase + OFFSET_DLH)) @@ -80,7 +96,7 @@ struct bfin_serial_port { #endif }; -struct bfin_serial_port bfin_serial_ports[NR_PORTS]; +struct bfin_serial_port bfin_serial_ports[BFIN_UART_NR_PORTS]; struct bfin_serial_res { unsigned long uart_base_addr; int uart_irq; diff --git a/include/asm-blackfin/mach-bf548/bfin_sir.h b/include/asm-blackfin/mach-bf548/bfin_sir.h new file mode 100644 index 000000000000..5e94271c7e3b --- /dev/null +++ b/include/asm-blackfin/mach-bf548/bfin_sir.h @@ -0,0 +1,149 @@ +/* + * Blackfin Infra-red Driver + * + * Copyright 2006-2008 Analog Devices Inc. + * + * Enter bugs at http://blackfin.uclinux.org/ + * + * Licensed under the GPL-2 or later. + * + */ + +#include +#include +#include + +#define SIR_UART_GET_CHAR(port) bfin_read16((port)->membase + OFFSET_RBR) +#define SIR_UART_GET_DLL(port) bfin_read16((port)->membase + OFFSET_DLL) +#define SIR_UART_GET_IER(port) bfin_read16((port)->membase + OFFSET_IER_SET) +#define SIR_UART_GET_DLH(port) bfin_read16((port)->membase + OFFSET_DLH) +#define SIR_UART_GET_LCR(port) bfin_read16((port)->membase + OFFSET_LCR) +#define SIR_UART_GET_LSR(port) bfin_read16((port)->membase + OFFSET_LSR) +#define SIR_UART_GET_GCTL(port) bfin_read16((port)->membase + OFFSET_GCTL) + +#define SIR_UART_PUT_CHAR(port, v) bfin_write16(((port)->membase + OFFSET_THR), v) +#define SIR_UART_PUT_DLL(port, v) bfin_write16(((port)->membase + OFFSET_DLL), v) +#define SIR_UART_SET_IER(port, v) bfin_write16(((port)->membase + OFFSET_IER_SET), v) +#define SIR_UART_CLEAR_IER(port, v) bfin_write16(((port)->membase + OFFSET_IER_CLEAR), v) +#define SIR_UART_PUT_DLH(port, v) bfin_write16(((port)->membase + OFFSET_DLH), v) +#define SIR_UART_PUT_LSR(port, v) bfin_write16(((port)->membase + OFFSET_LSR), v) +#define SIR_UART_PUT_LCR(port, v) bfin_write16(((port)->membase + OFFSET_LCR), v) +#define SIR_UART_CLEAR_LSR(port) bfin_write16(((port)->membase + OFFSET_LSR), -1) +#define SIR_UART_PUT_GCTL(port, v) bfin_write16(((port)->membase + OFFSET_GCTL), v) + +#ifdef CONFIG_SIR_BFIN_DMA +struct dma_rx_buf { + char *buf; + int head; + int tail; + }; +#endif /* CONFIG_SIR_BFIN_DMA */ + +struct bfin_sir_port { + unsigned char __iomem *membase; + unsigned int irq; + unsigned int lsr; + unsigned long clk; + struct net_device *dev; +#ifdef CONFIG_SIR_BFIN_DMA + int tx_done; + struct dma_rx_buf rx_dma_buf; + struct timer_list rx_dma_timer; + int rx_dma_nrows; +#endif /* CONFIG_SIR_BFIN_DMA */ + unsigned int tx_dma_channel; + unsigned int rx_dma_channel; +}; + +struct bfin_sir_port sir_ports[BFIN_UART_NR_PORTS]; + +struct bfin_sir_port_res { + unsigned long base_addr; + int irq; + unsigned int rx_dma_channel; + unsigned int tx_dma_channel; +}; + +struct bfin_sir_port_res bfin_sir_port_resource[] = { +#ifdef CONFIG_BFIN_SIR0 + { + 0xFFC00400, + IRQ_UART0_RX, + CH_UART0_RX, + CH_UART0_TX, + }, +#endif +#ifdef CONFIG_BFIN_SIR1 + { + 0xFFC02000, + IRQ_UART1_RX, + CH_UART1_RX, + CH_UART1_TX, + }, +#endif +#ifdef CONFIG_BFIN_SIR2 + { + 0xFFC02100, + IRQ_UART2_RX, + CH_UART2_RX, + CH_UART2_TX, + }, +#endif +#ifdef CONFIG_BFIN_SIR3 + { + 0xFFC03100, + IRQ_UART3_RX, + CH_UART3_RX, + CH_UART3_TX, + }, +#endif +}; + +int nr_sirs = ARRAY_SIZE(bfin_sir_port_resource); + +struct bfin_sir_self { + struct bfin_sir_port *sir_port; + spinlock_t lock; + unsigned int open; + int speed; + int newspeed; + + struct sk_buff *txskb; + struct sk_buff *rxskb; + struct net_device_stats stats; + struct device *dev; + struct irlap_cb *irlap; + struct qos_info qos; + + iobuff_t tx_buff; + iobuff_t rx_buff; + + struct work_struct work; + int mtt; +}; + +#define DRIVER_NAME "bfin_sir" + +static void bfin_sir_hw_init(void) +{ +#ifdef CONFIG_BFIN_SIR0 + peripheral_request(P_UART0_TX, DRIVER_NAME); + peripheral_request(P_UART0_RX, DRIVER_NAME); +#endif + +#ifdef CONFIG_BFIN_SIR1 + peripheral_request(P_UART1_TX, DRIVER_NAME); + peripheral_request(P_UART1_RX, DRIVER_NAME); +#endif + +#ifdef CONFIG_BFIN_SIR2 + peripheral_request(P_UART2_TX, DRIVER_NAME); + peripheral_request(P_UART2_RX, DRIVER_NAME); +#endif + +#ifdef CONFIG_BFIN_SIR3 + peripheral_request(P_UART3_TX, DRIVER_NAME); + peripheral_request(P_UART3_RX, DRIVER_NAME); +#endif + SSYNC(); +} diff --git a/include/asm-blackfin/mach-bf548/blackfin.h b/include/asm-blackfin/mach-bf548/blackfin.h index b8509c16ecd4..d6ee74ac0460 100644 --- a/include/asm-blackfin/mach-bf548/blackfin.h +++ b/include/asm-blackfin/mach-bf548/blackfin.h @@ -166,6 +166,21 @@ #define BFIN_UART_SCR UART1_SCR #define BFIN_UART_GCTL UART1_GCTL +#define BFIN_UART_NR_PORTS 4 + +#define OFFSET_DLL 0x00 /* Divisor Latch (Low-Byte) */ +#define OFFSET_DLH 0x04 /* Divisor Latch (High-Byte) */ +#define OFFSET_GCTL 0x08 /* Global Control Register */ +#define OFFSET_LCR 0x0C /* Line Control Register */ +#define OFFSET_MCR 0x10 /* Modem Control Register */ +#define OFFSET_LSR 0x14 /* Line Status Register */ +#define OFFSET_MSR 0x18 /* Modem Status Register */ +#define OFFSET_SCR 0x1C /* SCR Scratch Register */ +#define OFFSET_IER_SET 0x20 /* Set Interrupt Enable Register */ +#define OFFSET_IER_CLEAR 0x24 /* Clear Interrupt Enable Register */ +#define OFFSET_THR 0x28 /* Transmit Holding register */ +#define OFFSET_RBR 0x2C /* Receive Buffer register */ + /* PLL_DIV Masks */ #define CCLK_DIV1 CSEL_DIV1 /* CCLK = VCO / 1 */ #define CCLK_DIV2 CSEL_DIV2 /* CCLK = VCO / 2 */ -- cgit v1.2.3-59-g8ed1b