projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| d510fe70 GY |
1 | /* |
| 2 | * Blackfin Infra-red Driver | |
| 3 | * | |
| 4 | * Copyright 2006-2009 Analog Devices Inc. | |
| 5 | * | |
| 6 | * Enter bugs at http://blackfin.uclinux.org/ | |
| 7 | * | |
| 8 | * Licensed under the GPL-2 or later. | |
| 9 | * | |
| 10 | */ | |
| 11 | ||
| 12 | #include <linux/serial.h> | |
| 13 | #include <linux/module.h> | |
| 14 | #include <linux/netdevice.h> | |
| 15 | #include <linux/interrupt.h> | |
| 16 | #include <linux/delay.h> | |
| 17 | #include <linux/platform_device.h> | |
| 18 | #include <linux/dma-mapping.h> | |
| 5a0e3ad6 | 19 | #include <linux/slab.h> |
| d510fe70 GY |
20 | |
| 21 | #include <net/irda/irda.h> | |
| 22 | #include <net/irda/wrapper.h> | |
| 23 | #include <net/irda/irda_device.h> | |
| 24 | ||
| 25 | #include <asm/irq.h> | |
| 26 | #include <asm/cacheflush.h> | |
| 27 | #include <asm/dma.h> | |
| 28 | #include <asm/portmux.h> | |
| 709465d6 | 29 | #undef DRIVER_NAME |
| d510fe70 GY |
30 | |
| 31 | #ifdef CONFIG_SIR_BFIN_DMA | |
| 32 | struct dma_rx_buf { | |
| 33 | char *buf; | |
| 34 | int head; | |
| 35 | int tail; | |
| 36 | }; | |
| 37 | #endif | |
| 38 | ||
| 39 | struct bfin_sir_port { | |
| 40 | unsigned char __iomem *membase; | |
| 41 | unsigned int irq; | |
| 42 | unsigned int lsr; | |
| 43 | unsigned long clk; | |
| 44 | struct net_device *dev; | |
| 45 | #ifdef CONFIG_SIR_BFIN_DMA | |
| 46 | int tx_done; | |
| 47 | struct dma_rx_buf rx_dma_buf; | |
| 48 | struct timer_list rx_dma_timer; | |
| 49 | int rx_dma_nrows; | |
| 50 | #endif | |
| 51 | unsigned int tx_dma_channel; | |
| 52 | unsigned int rx_dma_channel; | |
| 53 | }; | |
| 54 | ||
| 55 | struct bfin_sir_port_res { | |
| 56 | unsigned long base_addr; | |
| 57 | int irq; | |
| 58 | unsigned int rx_dma_channel; | |
| 59 | unsigned int tx_dma_channel; | |
| 60 | }; | |
| 61 | ||
| 62 | struct bfin_sir_self { | |
| 63 | struct bfin_sir_port *sir_port; | |
| 64 | spinlock_t lock; | |
| 65 | unsigned int open; | |
| 66 | int speed; | |
| 67 | int newspeed; | |
| 68 | ||
| 69 | struct sk_buff *txskb; | |
| 70 | struct sk_buff *rxskb; | |
| 71 | struct net_device_stats stats; | |
| 72 | struct device *dev; | |
| 73 | struct irlap_cb *irlap; | |
| 74 | struct qos_info qos; | |
| 75 | ||
| 76 | iobuff_t tx_buff; | |
| 77 | iobuff_t rx_buff; | |
| 78 | ||
| 79 | struct work_struct work; | |
| 80 | int mtt; | |
| 81 | }; | |
| 82 | ||
| 83 | #define DRIVER_NAME "bfin_sir" | |
| 84 | ||
| 229de618 MF |
85 | #define port_membase(port) (((struct bfin_sir_port *)(port))->membase) |
| 86 | #define get_lsr_cache(port) (((struct bfin_sir_port *)(port))->lsr) | |
| 87 | #define put_lsr_cache(port, v) (((struct bfin_sir_port *)(port))->lsr = (v)) | |
| 88 | #include <asm/bfin_serial.h> | |
| d510fe70 GY |
89 | |
| 90 | static const unsigned short per[][4] = { | |
| 91 | /* rx pin tx pin NULL uart_number */ | |
| 92 | {P_UART0_RX, P_UART0_TX, 0, 0}, | |
| 93 | {P_UART1_RX, P_UART1_TX, 0, 1}, | |
| 94 | {P_UART2_RX, P_UART2_TX, 0, 2}, | |
| 95 | {P_UART3_RX, P_UART3_TX, 0, 3}, | |
| 96 | }; |