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00040 #include <cfg/os.h>
00041 #include <cfg/clock.h>
00042 #include <cfg/arch.h>
00043 #include <cfg/uart.h>
00044 #include <cfg/arch/gpio.h>
00045
00046 #include <string.h>
00047
00048 #include <sys/atom.h>
00049 #include <sys/event.h>
00050 #include <sys/timer.h>
00051
00052 #include <dev/irqreg.h>
00053 #include <dev/gpio.h>
00054 #include <dev/usartat91.h>
00055
00056 #ifndef NUT_CPU_FREQ
00057 #ifdef NUT_PLL_CPUCLK
00058 #include <dev/cy2239x.h>
00059 #else
00060 #define NUT_CPU_FREQ 73728000UL
00061 #endif
00062 #endif
00063
00064
00065
00066
00067 static uint32_t At91UsartGetSpeed(void);
00068 static int At91UsartSetSpeed(uint32_t rate);
00069 static uint8_t At91UsartGetDataBits(void);
00070 static int At91UsartSetDataBits(uint8_t bits);
00071 static uint8_t At91UsartGetParity(void);
00072 static int At91UsartSetParity(uint8_t mode);
00073 static uint8_t At91UsartGetStopBits(void);
00074 static int At91UsartSetStopBits(uint8_t bits);
00075 static uint32_t At91UsartGetFlowControl(void);
00076 static int At91UsartSetFlowControl(uint32_t flags);
00077 static uint32_t At91UsartGetStatus(void);
00078 static int At91UsartSetStatus(uint32_t flags);
00079 static uint8_t At91UsartGetClockMode(void);
00080 static int At91UsartSetClockMode(uint8_t mode);
00081 static void At91UsartTxStart(void);
00082 static void At91UsartRxStart(void);
00083 static int At91UsartInit(void);
00084 static int At91UsartDeinit(void);
00085
00090
00094 static USARTDCB dcb_usart1 = {
00095 0,
00096 0,
00097 0,
00098 0,
00099 {0, 0, 0, 0, 0, 0, 0, 0},
00100 {0, 0, 0, 0, 0, 0, 0, 0},
00101 0,
00102 At91UsartInit,
00103 At91UsartDeinit,
00104 At91UsartTxStart,
00105 At91UsartRxStart,
00106 At91UsartSetFlowControl,
00107 At91UsartGetFlowControl,
00108 At91UsartSetSpeed,
00109 At91UsartGetSpeed,
00110 At91UsartSetDataBits,
00111 At91UsartGetDataBits,
00112 At91UsartSetParity,
00113 At91UsartGetParity,
00114 At91UsartSetStopBits,
00115 At91UsartGetStopBits,
00116 At91UsartSetStatus,
00117 At91UsartGetStatus,
00118 At91UsartSetClockMode,
00119 At91UsartGetClockMode,
00120 };
00121
00137 NUTDEVICE devUsartAt911 = {
00138 0,
00139 {'u', 'a', 'r', 't', '1', 0, 0, 0, 0},
00140 IFTYP_CHAR,
00141 1,
00142 0,
00143 0,
00144 &dcb_usart1,
00145 UsartInit,
00146 UsartIOCtl,
00147 UsartRead,
00148 UsartWrite,
00149 UsartOpen,
00150 UsartClose,
00151 UsartSize
00152 };
00153
00157
00158
00159 #if defined(UART1_MODEM_CONTROL)
00160 #define UART_MODEM_CONTROL
00161 #define UART_HARDWARE_HANDSHAKE
00162 #elif defined(UART1_HARDWARE_HANDSHAKE)
00163 #define UART_HARDWARE_HANDSHAKE
00164 #endif
00165
00166
00167
00168
00169 #if defined(MCU_AT91SAM9260) || defined(MCU_AT91SAM9XE)
00170
00171 #define UART_RXTX_PINS (_BV(PB7_RXD1_A) | _BV(PB6_TXD1_A))
00172 #define UART_HDX_PIN _BV(PB28_RTS1_A)
00173 #define UART_RTS_PIN _BV(PB28_RTS1_A)
00174 #define UART_CTS_PIN _BV(PB29_CTS1_A)
00175
00176 #define UART_RXTX_PINS_ENABLE() outr(PIOB_ASR, UART_RXTX_PINS); \
00177 outr(PIOB_PDR, UART_RXTX_PINS)
00178
00179 #if defined(UART_HARDWARE_HANDSHAKE)
00180 #define UART_HDX_PIN_ENABLE() outr(PIOB_ASR, UART_HDX_PIN); \
00181 outr(PIOB_PDR, UART_HDX_PIN)
00182 #define UART_RTS_PIN_ENABLE() outr(PIOB_ASR, UART_RTS_PIN); \
00183 outr(PIOB_PDR, UART_RTS_PIN)
00184 #define UART_CTS_PIN_ENABLE() outr(PIOB_ASR, UART_CTS_PIN); \
00185 outr(PIOB_PDR, UART_CTS_PIN)
00186 #endif
00187
00188
00189
00190
00191 #elif defined(MCU_AT91SAM7S) || defined(MCU_AT91SAM7SE)
00192
00193 #define UART_RXTX_PINS (_BV(PA21_RXD1_A) | _BV(PA22_TXD1_A))
00194 #define UART_HDX_PIN _BV(PA24_RTS1_A)
00195 #define UART_RTS_PIN _BV(PA24_RTS1_A)
00196 #define UART_CTS_PIN _BV(PA25_CTS1_A)
00197 #define UART_MODEM_PINS (_BV(PB27_DTR1_A) | _BV(PB28_DSR1_A) | _BV(PB26_DCD1_A) | _BV(PB29_RI1_A))
00198
00199 #define UART_RXTX_PINS_ENABLE() outr(PIOA_ASR, UART_RXTX_PINS); \
00200 outr(PIOA_PDR, UART_RXTX_PINS)
00201
00202 #if defined(UART_HARDWARE_HANDSHAKE)
00203 #define UART_HDX_PIN_ENABLE() outr(PIOA_ASR, UART_HDX_PIN); \
00204 outr(PIOA_PDR, UART_HDX_PIN)
00205 #define UART_RTS_PIN_ENABLE() outr(PIOA_ASR, UART_RTS_PIN); \
00206 outr(PIOA_PDR, UART_RTS_PIN)
00207 #define UART_CTS_PIN_ENABLE() outr(PIOA_ASR, UART_CTS_PIN); \
00208 outr(PIOA_PDR, UART_CTS_PIN)
00209 #endif
00210
00211 #if defined(UART_MODEM_CONTROL)
00212 #define UART_MODEM_PINS_ENABLE() outr(PIOB_ASR, UART_MODEM_PINS); \
00213 outr(PIOB_PDR, UART_MODEM_PINS)
00214 #endif
00215
00216
00217
00218
00219 #elif defined(MCU_AT91SAM7X)
00220 #define UART_RXTX_PINS (_BV(PA5_RXD1_A) | _BV(PA6_TXD1_A))
00221 #define UART_HDX_PIN _BV(PA8_RTS1_A)
00222 #define UART_RTS_PIN _BV(PA8_RTS1_A)
00223 #define UART_CTS_PIN _BV(PA9_CTS1_A)
00224 #define UART_MODEM_PINS (_BV(PB25_DTR1_B) | _BV(PB24_DSR1_B) | _BV(PB23_DCD1_B) | _BV(PB26_RI1_B))
00225
00226 #define UART_RXTX_PINS_ENABLE() outr(PIOA_ASR, UART_RXTX_PINS); \
00227 outr(PIOA_PDR, UART_RXTX_PINS)
00228
00229 #if defined(UART_HARDWARE_HANDSHAKE)
00230 #define UART_HDX_PIN_ENABLE() outr(PIOA_ASR, UART_HDX_PIN); \
00231 outr(PIOA_PDR, UART_HDX_PIN)
00232 #define UART_RTS_PIN_ENABLE() outr(PIOA_ASR, UART_RTS_PIN); \
00233 outr(PIOA_PDR, UART_RTS_PIN)
00234 #define UART_CTS_PIN_ENABLE() outr(PIOA_ASR, UART_CTS_PIN); \
00235 outr(PIOA_PDR, UART_CTS_PIN)
00236 #endif
00237
00238 #if defined(UART_MODEM_CONTROL)
00239 #define UART_MODEM_PINS_ENABLE() outr(PIOB_BSR, UART_MODEM_PINS); \
00240 outr(PIOB_PDR, UART_MODEM_PINS)
00241 #endif
00242
00243
00244
00245
00246 #elif defined(MCU_AT91R40008)
00247
00248 #define UART_RXTX_PINS (_BV(P22_RXD1) | _BV(P21_TXD1))
00249
00250 #define UART_RXTX_PINS_ENABLE() outr(PIO_PDR, UART_RXTX_PINS)
00251
00252
00253
00254
00255
00256
00257
00258
00259 #endif
00260
00261
00262
00263
00264 #if defined(ETHERNUT3)
00265 #define UART_USES_NPL 1
00266 #endif
00267
00268
00269
00270
00271 #if defined(UART1_CTS_BIT) && !defined(UART1_CTS_SIGNAL)
00272 #if UART1_CTS_PIO_ID == PIOA_ID
00273 #define UART1_CTS_SIGNAL sig_GPIO1
00274 #elif UART1_CTS_PIO_ID == PIOB_ID
00275 #define UART1_CTS_SIGNAL sig_GPIO2
00276 #elif UART1_CTS_PIO_ID == PIOC_ID
00277 #define UART1_CTS_SIGNAL sig_GPIO3
00278 #else
00279 #define UART1_CTS_SIGNAL sig_GPIO
00280 #endif
00281 #endif
00282
00283
00284
00285
00286
00287 #if defined(UART1_HDX_BIT)
00288 #define UART_HDX_BIT UART1_HDX_BIT
00289 #endif
00290 #if defined(UART1_HDX_PIO_ID)
00291 #define UART_HDX_PIO_ID UART1_HDX_PIO_ID
00292 #endif
00293
00294 #if defined(UART1_RTS_BIT)
00295 #define UART_RTS_BIT UART1_RTS_BIT
00296 #endif
00297 #if defined(UART1_RTS_PIO_ID)
00298 #define UART_RTS_PIO_ID UART1_RTS_PIO_ID
00299 #endif
00300
00301 #if defined(UART1_CTS_BIT)
00302 #define UART_CTS_BIT UART1_CTS_BIT
00303 #endif
00304 #if defined(UART1_CTS_PIO_ID)
00305 #define UART_CTS_PIO_ID UART1_CTS_PIO_ID
00306 #endif
00307 #if defined(UART1_CTS_SIGNAL)
00308 #define UART_CTS_SIGNAL UART1_CTS_SIGNAL
00309 #endif
00310
00311 #if defined(UART1_INIT_BAUDRATE)
00312 #define UART_INIT_BAUDRATE UART1_INIT_BAUDRATE
00313 #endif
00314
00315 #define USARTn_BASE USART1_BASE
00316 #define US_ID US1_ID
00317 #define SIG_UART sig_UART1
00318 #define dcb_usart dcb_usart1
00319
00320 #include "usartat91.c"