[f610e83f] | 1 | /*===============================================================*\ |
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| 2 | | Project: RTEMS support for MPC83xx | |
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| 3 | +-----------------------------------------------------------------+ |
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| 4 | | Copyright (c) 2007 | |
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| 5 | | Embedded Brains GmbH | |
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| 6 | | Obere Lagerstr. 30 | |
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| 7 | | D-82178 Puchheim | |
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| 8 | | Germany | |
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| 9 | | rtems@embedded-brains.de | |
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| 10 | +-----------------------------------------------------------------+ |
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| 11 | | The license and distribution terms for this file may be | |
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| 12 | | found in the file LICENSE in this distribution or at | |
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| 13 | | | |
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| 14 | | http://www.rtems.com/license/LICENSE. | |
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| 15 | | | |
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| 16 | +-----------------------------------------------------------------+ |
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| 17 | | this file contains the MPC83xx TSEC networking driver | |
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| 18 | \*===============================================================*/ |
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| 19 | /* |
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| 20 | * this driver has the following HW assumptions: |
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| 21 | * - PHY for TSEC1 uses address 0 |
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| 22 | * - PHY for TSEC2 uses address 1 |
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| 23 | * - PHY uses GMII for 1000Base-T and MII for the rest of the modes |
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| 24 | */ |
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| 25 | #include <stdlib.h> |
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| 26 | #include <bsp.h> |
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| 27 | #include <bsp/irq.h> |
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| 28 | #include <mpc83xx/mpc83xx.h> |
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| 29 | #include <mpc83xx/tsec.h> |
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| 30 | #include <rtems/error.h> |
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| 31 | #include <rtems/bspIo.h> |
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| 32 | #include <rtems/rtems_bsdnet.h> |
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| 33 | #include <rtems/rtems_mii_ioctl.h> |
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| 34 | #include <errno.h> |
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| 35 | |
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| 36 | #include <sys/param.h> |
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| 37 | #include <sys/socket.h> |
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| 38 | #include <sys/sockio.h> |
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| 39 | #include <sys/mbuf.h> |
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| 40 | #include <net/if.h> |
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| 41 | #include <net/if_arp.h> |
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| 42 | #include <netinet/in.h> |
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| 43 | #include <netinet/if_ether.h> |
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| 44 | #include <stdio.h> |
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| 45 | |
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| 46 | #define CLREVENT_IN_IRQ |
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| 47 | |
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| 48 | #define TSEC_WATCHDOG_TIMEOUT 5 /* check media every 5 seconds */ |
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| 49 | |
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| 50 | /* |
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| 51 | * Device data |
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| 52 | */ |
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| 53 | struct mpc83xx_tsec_struct { |
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| 54 | struct arpcom arpcom; |
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| 55 | int acceptBroadcast; |
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| 56 | |
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| 57 | /* |
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| 58 | * HW links: (filled from rtems_bsdnet_ifconfig |
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| 59 | */ |
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| 60 | m83xxTSEC_Registers_t *reg_ptr; /* pointer to TSEC register block */ |
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| 61 | int irq_num_tx; /* tx irq number */ |
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| 62 | int irq_num_rx; /* rx irq number */ |
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| 63 | int irq_num_err; /* error irq number */ |
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| 64 | |
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| 65 | /* |
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| 66 | * BD management |
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| 67 | */ |
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| 68 | int rxBdCount; |
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| 69 | int txBdCount; |
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| 70 | PQBufferDescriptor_t *Rx_Frst_BD; |
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| 71 | PQBufferDescriptor_t *Rx_Last_BD; |
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| 72 | PQBufferDescriptor_t *Rx_NxtUsed_BD; /* First BD, which is in Use */ |
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| 73 | PQBufferDescriptor_t *Rx_NxtFill_BD; /* BD to be filled next */ |
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| 74 | struct mbuf **Rx_mBuf_Ptr; /* Storage for mbufs */ |
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| 75 | |
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| 76 | PQBufferDescriptor_t *Tx_Frst_BD; |
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| 77 | PQBufferDescriptor_t *Tx_Last_BD; |
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| 78 | PQBufferDescriptor_t *Tx_NxtUsed_BD; /* First BD, which is in Use */ |
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| 79 | PQBufferDescriptor_t *Tx_NxtFill_BD; /* BD to be filled next */ |
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| 80 | struct mbuf **Tx_mBuf_Ptr; /* Storage for mbufs */ |
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| 81 | /* |
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| 82 | * Daemon IDs |
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| 83 | */ |
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| 84 | rtems_id rxDaemonTid; |
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| 85 | rtems_id txDaemonTid; |
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| 86 | |
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| 87 | /* |
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| 88 | * MDIO/Phy info |
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| 89 | */ |
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| 90 | struct rtems_mdio_info mdio_info; |
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| 91 | int phy_default; |
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| 92 | int media_state; /* (last detected) state of media */ |
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| 93 | /* |
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| 94 | * statistic counters Rx |
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| 95 | */ |
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| 96 | unsigned long rxInterrupts; |
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| 97 | unsigned long rxNotLast; |
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| 98 | unsigned long rxGiant; |
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| 99 | unsigned long rxNonOctet; |
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| 100 | unsigned long rxBadCRC; |
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| 101 | unsigned long rxOverrun; |
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| 102 | unsigned long rxCollision; |
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| 103 | |
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| 104 | /* |
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| 105 | * statistic counters Tx |
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| 106 | */ |
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| 107 | unsigned long txInterrupts; |
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| 108 | unsigned long txDeferred; |
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| 109 | unsigned long txLateCollision; |
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| 110 | unsigned long txUnderrun; |
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| 111 | unsigned long txMisaligned; |
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| 112 | unsigned long rxNotFirst; |
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| 113 | unsigned long txRetryLimit; |
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| 114 | }; |
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| 115 | |
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| 116 | static struct mpc83xx_tsec_struct tsec_driver[M83xx_TSEC_NIFACES]; |
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| 117 | |
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| 118 | /* |
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| 119 | * default numbers for buffers |
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| 120 | */ |
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| 121 | #define RX_BUF_COUNT 64 |
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| 122 | #define TX_BUF_COUNT 64 |
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| 123 | |
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| 124 | /* |
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| 125 | * mask for all Tx interrupts |
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| 126 | */ |
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| 127 | #define M83xx_IEVENT_TXALL (M83xx_TSEC_IEVENT_GTSC \ |
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| 128 | | M83xx_TSEC_IEVENT_TXC \ |
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| 129 | | M83xx_TSEC_IEVENT_TXB \ |
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| 130 | | M83xx_TSEC_IEVENT_TXF ) |
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| 131 | |
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| 132 | /* |
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| 133 | * mask for all Rx interrupts |
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| 134 | */ |
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| 135 | #define M83xx_IEVENT_RXALL (M83xx_TSEC_IEVENT_RXC \ |
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| 136 | | M83xx_TSEC_IEVENT_RXB \ |
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| 137 | | M83xx_TSEC_IEVENT_GRSC \ |
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| 138 | | M83xx_TSEC_IEVENT_RXF ) |
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| 139 | |
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| 140 | /* |
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| 141 | * mask for all Error interrupts |
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| 142 | */ |
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| 143 | #define M83xx_IEVENT_ERRALL (M83xx_TSEC_IEVENT_BABR \ |
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| 144 | | M83xx_TSEC_IEVENT_BSY \ |
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| 145 | | M83xx_TSEC_IEVENT_EBERR \ |
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| 146 | | M83xx_TSEC_IEVENT_MSRO \ |
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| 147 | | M83xx_TSEC_IEVENT_BABT \ |
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| 148 | | M83xx_TSEC_IEVENT_TXE \ |
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| 149 | | M83xx_TSEC_IEVENT_LC \ |
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| 150 | | M83xx_TSEC_IEVENT_CRL_XDA \ |
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| 151 | | M83xx_TSEC_IEVENT_XFUN ) |
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| 152 | |
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| 153 | #define M83xx_TSEC_IMASK_SET(reg,mask,val) { \ |
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| 154 | rtems_interrupt_level level; \ |
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| 155 | \ |
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| 156 | rtems_interrupt_disable(level); \ |
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| 157 | (reg) = (((reg) & ~(mask)) | \ |
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| 158 | ((val) & (mask))); \ |
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| 159 | rtems_interrupt_enable(level); \ |
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| 160 | } |
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| 161 | |
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| 162 | #define M83xx_TSEC_ALIGN_BUFFER(buf,align) \ |
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| 163 | ((void *)( (((uint32_t)(buf))+(align)-1) \ |
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| 164 | -(((uint32_t)(buf))+(align)-1)%align)) |
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| 165 | |
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| 166 | /* |
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| 167 | * RTEMS event used by interrupt handler to signal daemons. |
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| 168 | * This must *not* be the same event used by the TCP/IP task synchronization. |
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| 169 | */ |
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| 170 | #define INTERRUPT_EVENT RTEMS_EVENT_1 |
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| 171 | #define FATAL_INT_EVENT RTEMS_EVENT_3 |
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| 172 | |
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| 173 | /* |
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| 174 | * RTEMS event used to start transmit daemon. |
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| 175 | * This must not be the same as INTERRUPT_EVENT. |
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| 176 | */ |
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| 177 | #define START_TRANSMIT_EVENT RTEMS_EVENT_2 |
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| 178 | |
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| 179 | static int mpc83xx_tsec_ioctl |
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| 180 | ( |
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| 181 | struct ifnet *ifp, /* interface information */ |
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| 182 | ioctl_command_t command, /* ioctl command code */ |
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| 183 | caddr_t data /* optional data */ |
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| 184 | ); |
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| 185 | |
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| 186 | /*=========================================================================*\ |
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| 187 | | Function: | |
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| 188 | \*-------------------------------------------------------------------------*/ |
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| 189 | static void mpc83xx_tsec_hwinit |
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| 190 | ( |
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| 191 | /*-------------------------------------------------------------------------*\ |
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| 192 | | Purpose: | |
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| 193 | | initialize hardware register | |
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| 194 | +---------------------------------------------------------------------------+ |
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| 195 | | Input Parameters: | |
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| 196 | \*-------------------------------------------------------------------------*/ |
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| 197 | struct mpc83xx_tsec_struct *sc /* control structure */ |
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| 198 | ) |
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| 199 | /*-------------------------------------------------------------------------*\ |
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| 200 | | Return Value: | |
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| 201 | | <none> | |
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| 202 | \*=========================================================================*/ |
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| 203 | { |
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| 204 | m83xxTSEC_Registers_t *reg_ptr = sc->reg_ptr; /* pointer to TSEC registers*/ |
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| 205 | uint8_t *mac_addr; |
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| 206 | int i; |
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| 207 | |
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| 208 | /* |
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| 209 | * init ECNTL register |
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| 210 | * - clear statistics counters |
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| 211 | * - enable statistics |
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| 212 | * NOTE: do not clear bits set in BSP init function |
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| 213 | */ |
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| 214 | reg_ptr->ecntrl = ((reg_ptr->ecntrl & ~M83xx_TSEC_ECNTRL_AUTOZ) |
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| 215 | | M83xx_TSEC_ECNTRL_CLRCNT |
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| 216 | | M83xx_TSEC_ECNTRL_STEN); |
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| 217 | |
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| 218 | /* |
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| 219 | * init DMA control register: |
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| 220 | * - enable snooping |
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| 221 | * - write BD status before interrupt request |
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| 222 | * - do not poll TxBD, but wait for TSTAT[THLT] to be written |
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| 223 | */ |
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| 224 | reg_ptr->dmactrl = (M83xx_TSEC_DMACTL_TDSEN |
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| 225 | | M83xx_TSEC_DMACTL_TBDSEN |
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| 226 | | M83xx_TSEC_DMACTL_WWR |
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| 227 | | M83xx_TSEC_DMACTL_WOP); |
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| 228 | |
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| 229 | /* |
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| 230 | * init Attribute register: |
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| 231 | * - enable read snooping for data and BD |
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| 232 | */ |
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| 233 | reg_ptr->attr = (M83xx_TSEC_ATTR_RDSEN |
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| 234 | | M83xx_TSEC_ATTR_RBDSEN); |
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| 235 | |
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| 236 | |
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| 237 | reg_ptr->mrblr = MCLBYTES-64; /* take care of buffer size lost |
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| 238 | * due to alignment */ |
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| 239 | |
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| 240 | /* |
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| 241 | * init EDIS register: enable all error reportings |
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| 242 | * FIXME: make sure we handle these errors correctly |
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| 243 | */ |
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| 244 | reg_ptr->edis = 0; |
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| 245 | /* |
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| 246 | * init minimum frame length register |
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| 247 | */ |
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| 248 | reg_ptr->minflr = 64; |
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| 249 | /* |
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| 250 | * init maximum frame length register |
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| 251 | */ |
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| 252 | reg_ptr->maxfrm = 1536; |
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| 253 | /* |
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| 254 | * define physical address of TBI |
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| 255 | */ |
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| 256 | reg_ptr->tbipa = 0x1e; |
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| 257 | /* |
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| 258 | * init transmit interrupt coalescing register |
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| 259 | */ |
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| 260 | reg_ptr->txic = (M83xx_TSEC_TXIC_ICEN |
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| 261 | | M83xx_TSEC_TXIC_ICFCT(16) |
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| 262 | | M83xx_TSEC_TXIC_ICTT(16)); |
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| 263 | /* |
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| 264 | * init receive interrupt coalescing register |
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| 265 | */ |
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| 266 | reg_ptr->rxic = (M83xx_TSEC_RXIC_ICEN |
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| 267 | | M83xx_TSEC_RXIC_ICFCT(16) |
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| 268 | | M83xx_TSEC_RXIC_ICTT(16)); |
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| 269 | /* |
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| 270 | * init MACCFG1 register |
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| 271 | */ |
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| 272 | reg_ptr->maccfg1 = (M83xx_TSEC_MACCFG1_RX_FLOW |
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| 273 | | M83xx_TSEC_MACCFG1_TX_FLOW); |
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| 274 | |
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| 275 | /* |
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| 276 | * init MACCFG2 register |
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| 277 | */ |
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| 278 | reg_ptr->maccfg2 = ((reg_ptr->maccfg2 & M83xx_TSEC_MACCFG2_IFMODE_MSK) |
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| 279 | | M83xx_TSEC_MACCFG2_PRELEN(7) |
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| 280 | | M83xx_TSEC_MACCFG2_FULLDUPLEX); |
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| 281 | |
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| 282 | /* |
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| 283 | * init station address register |
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| 284 | */ |
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| 285 | mac_addr = sc->arpcom.ac_enaddr; |
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| 286 | |
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| 287 | reg_ptr->macstnaddr[0] = ((mac_addr[5] << 24) |
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| 288 | | (mac_addr[4] << 16) |
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| 289 | | (mac_addr[3] << 8) |
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| 290 | | (mac_addr[2] << 0)); |
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| 291 | reg_ptr->macstnaddr[1] = ((mac_addr[1] << 24) |
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| 292 | | (mac_addr[0] << 16)); |
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| 293 | /* |
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| 294 | * clear hash filters |
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| 295 | */ |
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| 296 | for (i = 0; |
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| 297 | i < sizeof(reg_ptr->iaddr)/sizeof(reg_ptr->iaddr[0]); |
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| 298 | i++) { |
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| 299 | reg_ptr->iaddr[i] = 0; |
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| 300 | } |
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| 301 | for (i = 0; |
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| 302 | i < sizeof(reg_ptr->gaddr)/sizeof(reg_ptr->gaddr[0]); |
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| 303 | i++) { |
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| 304 | reg_ptr->gaddr[i] = 0; |
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| 305 | } |
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| 306 | } |
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| 307 | |
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| 308 | /***************************************************************************\ |
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| 309 | | MII Management access functions | |
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| 310 | \***************************************************************************/ |
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| 311 | |
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| 312 | /*=========================================================================*\ |
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| 313 | | Function: | |
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| 314 | \*-------------------------------------------------------------------------*/ |
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| 315 | static void mpc83xx_tsec_mdio_init |
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| 316 | ( |
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| 317 | /*-------------------------------------------------------------------------*\ |
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| 318 | | Purpose: | |
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| 319 | | initialize the MIIM interface | |
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| 320 | +---------------------------------------------------------------------------+ |
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| 321 | | Input Parameters: | |
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| 322 | \*-------------------------------------------------------------------------*/ |
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| 323 | struct mpc83xx_tsec_struct *sc /* control structure */ |
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| 324 | ) |
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| 325 | /*-------------------------------------------------------------------------*\ |
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| 326 | | Return Value: | |
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| 327 | | <none> | |
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| 328 | \*=========================================================================*/ |
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| 329 | { |
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| 330 | /* |
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| 331 | * set clock divider |
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| 332 | */ |
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| 333 | sc->reg_ptr->miimcfg = 3; |
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| 334 | } |
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| 335 | |
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| 336 | /*=========================================================================*\ |
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| 337 | | Function: | |
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| 338 | \*-------------------------------------------------------------------------*/ |
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| 339 | int mpc83xx_tsec_mdio_read |
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| 340 | ( |
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| 341 | /*-------------------------------------------------------------------------*\ |
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| 342 | | Purpose: | |
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| 343 | | read register of a phy | |
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| 344 | +---------------------------------------------------------------------------+ |
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| 345 | | Input Parameters: | |
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| 346 | \*-------------------------------------------------------------------------*/ |
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| 347 | int phy, /* PHY number to access or -1 */ |
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| 348 | void *uarg, /* unit argument */ |
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| 349 | unsigned reg, /* register address */ |
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| 350 | uint32_t *pval /* ptr to read buffer */ |
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| 351 | ) |
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| 352 | /*-------------------------------------------------------------------------*\ |
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| 353 | | Return Value: | |
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| 354 | | 0, if ok, else error | |
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| 355 | \*=========================================================================*/ |
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| 356 | { |
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| 357 | struct mpc83xx_tsec_struct *sc = uarg;/* control structure */ |
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| 358 | m83xxTSEC_Registers_t *reg_ptr; /* pointer to TSEC registers */ |
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| 359 | |
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| 360 | reg_ptr = sc->reg_ptr; |
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| 361 | |
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| 362 | /* |
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| 363 | * make sure we work with a valid phy |
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| 364 | */ |
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| 365 | if (phy == -1) { |
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| 366 | /* |
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| 367 | * set default phy number: 0 for TSEC1, 1 for TSEC2 |
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| 368 | */ |
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| 369 | phy = sc->phy_default; |
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| 370 | } |
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| 371 | if ( (phy < 0) || (phy > 31)) { |
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| 372 | /* |
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| 373 | * invalid phy number |
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| 374 | */ |
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| 375 | return EINVAL; |
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| 376 | } |
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| 377 | /* |
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| 378 | * set PHY/reg address |
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| 379 | */ |
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| 380 | reg_ptr->miimadd = (M83xx_TSEC_MIIMADD_PHY(phy) |
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| 381 | | M83xx_TSEC_MIIMADD_REGADDR(reg)); |
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| 382 | /* |
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| 383 | * start read cycle |
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| 384 | */ |
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| 385 | reg_ptr->miimcom = 0; |
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| 386 | reg_ptr->miimcom = M83xx_TSEC_MIIMCOM_READ; |
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| 387 | |
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| 388 | /* |
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| 389 | * wait for cycle to terminate |
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| 390 | */ |
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| 391 | do { |
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| 392 | rtems_task_wake_after(2); |
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| 393 | } while (0 != (reg_ptr->miimind & M83xx_TSEC_MIIMIND_BUSY)); |
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| 394 | reg_ptr->miimcom = 0; |
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| 395 | /* |
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| 396 | * fetch read data, if available |
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| 397 | */ |
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| 398 | if (pval != NULL) { |
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| 399 | *pval = reg_ptr->miimstat; |
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| 400 | } |
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| 401 | return 0; |
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| 402 | } |
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| 403 | |
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| 404 | /*=========================================================================*\ |
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| 405 | | Function: | |
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| 406 | \*-------------------------------------------------------------------------*/ |
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| 407 | int mpc83xx_tsec_mdio_write |
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| 408 | ( |
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| 409 | /*-------------------------------------------------------------------------*\ |
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| 410 | | Purpose: | |
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| 411 | | write register of a phy | |
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| 412 | +---------------------------------------------------------------------------+ |
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| 413 | | Input Parameters: | |
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| 414 | \*-------------------------------------------------------------------------*/ |
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| 415 | int phy, /* PHY number to access or -1 */ |
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| 416 | void *uarg, /* unit argument */ |
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| 417 | unsigned reg, /* register address */ |
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| 418 | uint32_t val /* write value */ |
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| 419 | ) |
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| 420 | /*-------------------------------------------------------------------------*\ |
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| 421 | | Return Value: | |
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| 422 | | 0, if ok, else error | |
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| 423 | \*=========================================================================*/ |
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| 424 | { |
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| 425 | struct mpc83xx_tsec_struct *sc = uarg;/* control structure */ |
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| 426 | m83xxTSEC_Registers_t *reg_ptr; /* pointer to TSEC registers */ |
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| 427 | |
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| 428 | reg_ptr = sc->reg_ptr; |
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| 429 | |
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| 430 | /* |
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| 431 | * make sure we work with a valid phy |
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| 432 | */ |
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| 433 | if (phy == -1) { |
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| 434 | /* |
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| 435 | * set default phy number: 0 for TSEC1, 1 for TSEC2 |
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| 436 | */ |
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| 437 | phy = sc->phy_default; |
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| 438 | } |
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| 439 | if ( (phy < 0) || (phy > 31)) { |
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| 440 | /* |
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| 441 | * invalid phy number |
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| 442 | */ |
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| 443 | return EINVAL; |
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| 444 | } |
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| 445 | /* |
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| 446 | * set PHY/reg address |
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| 447 | */ |
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| 448 | reg_ptr->miimadd = (M83xx_TSEC_MIIMADD_PHY(phy) |
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| 449 | | M83xx_TSEC_MIIMADD_REGADDR(reg)); |
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| 450 | /* |
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| 451 | * start write cycle |
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| 452 | */ |
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| 453 | reg_ptr->miimcon = val; |
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| 454 | |
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| 455 | /* |
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| 456 | * wait for cycle to terminate |
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| 457 | */ |
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| 458 | do { |
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| 459 | rtems_task_wake_after(2); |
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| 460 | } while (0 != (reg_ptr->miimind & M83xx_TSEC_MIIMIND_BUSY)); |
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| 461 | reg_ptr->miimcom = 0; |
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| 462 | return 0; |
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| 463 | } |
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| 464 | |
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| 465 | |
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| 466 | /***************************************************************************\ |
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| 467 | | RX receive functions | |
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| 468 | \***************************************************************************/ |
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| 469 | |
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| 470 | /*=========================================================================*\ |
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| 471 | | Function: | |
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| 472 | \*-------------------------------------------------------------------------*/ |
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| 473 | static rtems_event_set mpc83xx_tsec_rx_wait_for_events |
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| 474 | ( |
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| 475 | /*-------------------------------------------------------------------------*\ |
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| 476 | | Purpose: | |
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| 477 | | handle all rx events | |
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| 478 | +---------------------------------------------------------------------------+ |
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| 479 | | Input Parameters: | |
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| 480 | \*-------------------------------------------------------------------------*/ |
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| 481 | struct mpc83xx_tsec_struct *sc, /* control structure */ |
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| 482 | rtems_event_set event_mask /* events to wait for */ |
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| 483 | ) |
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| 484 | /*-------------------------------------------------------------------------*\ |
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| 485 | | Return Value: | |
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| 486 | | event set received | |
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| 487 | \*=========================================================================*/ |
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| 488 | { |
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| 489 | rtems_event_set events; /* events received */ |
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| 490 | /* |
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| 491 | * enable Rx interrupts, make sure this is not interrupted :-) |
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| 492 | */ |
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| 493 | M83xx_TSEC_IMASK_SET(sc->reg_ptr->imask,M83xx_IEVENT_RXALL,~0); |
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| 494 | |
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| 495 | /* |
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| 496 | * wait for events to come in |
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| 497 | */ |
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| 498 | rtems_bsdnet_event_receive(event_mask, |
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| 499 | RTEMS_EVENT_ANY | RTEMS_WAIT, |
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| 500 | RTEMS_NO_TIMEOUT, |
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| 501 | &events); |
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| 502 | return events; |
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| 503 | } |
---|
| 504 | |
---|
| 505 | /*=========================================================================*\ |
---|
| 506 | | Function: | |
---|
| 507 | \*-------------------------------------------------------------------------*/ |
---|
| 508 | static void mpc83xx_rxbd_alloc_clear |
---|
| 509 | ( |
---|
| 510 | /*-------------------------------------------------------------------------*\ |
---|
| 511 | | Purpose: | |
---|
| 512 | | allocate space for Rx BDs, clear them | |
---|
| 513 | +---------------------------------------------------------------------------+ |
---|
| 514 | | Input Parameters: | |
---|
| 515 | \*-------------------------------------------------------------------------*/ |
---|
| 516 | struct mpc83xx_tsec_struct *sc /* control structure */ |
---|
| 517 | ) |
---|
| 518 | /*-------------------------------------------------------------------------*\ |
---|
| 519 | | Return Value: | |
---|
| 520 | | <none> | |
---|
| 521 | \*=========================================================================*/ |
---|
| 522 | { |
---|
| 523 | char *alloc_ptr; |
---|
| 524 | PQBufferDescriptor_t *BD_ptr; |
---|
| 525 | /* |
---|
| 526 | * allocate proper space for Rx BDs |
---|
| 527 | */ |
---|
| 528 | alloc_ptr = calloc((sc->rxBdCount+1),sizeof(PQBufferDescriptor_t)); |
---|
| 529 | if (alloc_ptr == NULL) { |
---|
| 530 | rtems_panic("TSEC: cannot allocate space for Rx BDs"); |
---|
| 531 | } |
---|
| 532 | alloc_ptr = (void *)((uint32_t )((alloc_ptr + (sizeof(PQBufferDescriptor_t)-1))) |
---|
| 533 | & ~(sizeof(PQBufferDescriptor_t)-1)); |
---|
| 534 | /* |
---|
| 535 | * store pointers to certain positions in BD chain |
---|
| 536 | */ |
---|
| 537 | sc->Rx_Last_BD = ((PQBufferDescriptor_t *)alloc_ptr)+sc->rxBdCount-1; |
---|
| 538 | sc->Rx_Frst_BD = (PQBufferDescriptor_t *)alloc_ptr; |
---|
| 539 | sc->Rx_NxtUsed_BD = sc->Rx_Frst_BD; |
---|
| 540 | sc->Rx_NxtFill_BD = sc->Rx_Frst_BD; |
---|
| 541 | |
---|
| 542 | /* |
---|
| 543 | * clear all BDs |
---|
| 544 | */ |
---|
| 545 | for (BD_ptr = sc->Rx_Frst_BD; |
---|
| 546 | BD_ptr <= sc->Rx_Last_BD; |
---|
| 547 | BD_ptr++) { |
---|
| 548 | BD_ptr->status = 0; |
---|
| 549 | } |
---|
| 550 | /* |
---|
| 551 | * Init BD chain registers |
---|
| 552 | */ |
---|
| 553 | sc->reg_ptr->rbase = (uint32_t) (sc->Rx_Frst_BD); |
---|
| 554 | } |
---|
| 555 | |
---|
| 556 | /*=========================================================================*\ |
---|
| 557 | | Function: | |
---|
| 558 | \*-------------------------------------------------------------------------*/ |
---|
| 559 | static void mpc83xx_tsec_receive_packets |
---|
| 560 | ( |
---|
| 561 | /*-------------------------------------------------------------------------*\ |
---|
| 562 | | Purpose: | |
---|
| 563 | | process any received packets | |
---|
| 564 | +---------------------------------------------------------------------------+ |
---|
| 565 | | Input Parameters: | |
---|
| 566 | \*-------------------------------------------------------------------------*/ |
---|
| 567 | struct mpc83xx_tsec_struct *sc /* control structure */ |
---|
| 568 | ) |
---|
| 569 | /*-------------------------------------------------------------------------*\ |
---|
| 570 | | Return Value: | |
---|
| 571 | | <none> | |
---|
| 572 | \*=========================================================================*/ |
---|
| 573 | { |
---|
| 574 | PQBufferDescriptor_t *BD_ptr; |
---|
| 575 | struct mbuf *m,*n; |
---|
| 576 | boolean finished = FALSE; |
---|
| 577 | uint16_t status; |
---|
| 578 | struct ether_header *eh; |
---|
| 579 | int bd_idx; |
---|
| 580 | |
---|
| 581 | BD_ptr = sc->Rx_NxtUsed_BD; |
---|
| 582 | |
---|
| 583 | while ((0 == ((status = BD_ptr->status) & M83xx_BD_EMPTY)) && |
---|
| 584 | !finished && |
---|
| 585 | (BD_ptr->buffer != NULL)) { |
---|
| 586 | /* |
---|
| 587 | * get mbuf associated with BD |
---|
| 588 | */ |
---|
| 589 | bd_idx = BD_ptr - sc->Rx_Frst_BD; |
---|
| 590 | m = sc->Rx_mBuf_Ptr[bd_idx]; |
---|
| 591 | sc->Rx_mBuf_Ptr[bd_idx] = NULL; |
---|
| 592 | |
---|
| 593 | /* |
---|
| 594 | * Check that packet is valid |
---|
| 595 | */ |
---|
| 596 | if ((status & (M83xx_BD_LAST | |
---|
| 597 | M83xx_BD_FIRST_IN_FRAME | |
---|
| 598 | M83xx_BD_LONG | |
---|
| 599 | M83xx_BD_NONALIGNED | |
---|
| 600 | M83xx_BD_CRC_ERROR | |
---|
| 601 | M83xx_BD_OVERRUN )) |
---|
| 602 | == (M83xx_BD_LAST | |
---|
| 603 | M83xx_BD_FIRST_IN_FRAME ) ) { |
---|
| 604 | /* |
---|
| 605 | * send mbuf of this buffer to ether_input() |
---|
| 606 | */ |
---|
| 607 | m->m_len = m->m_pkthdr.len = (BD_ptr->length |
---|
| 608 | - sizeof(uint32_t) |
---|
| 609 | - sizeof(struct ether_header)); |
---|
| 610 | eh = mtod(m, struct ether_header *); |
---|
| 611 | m->m_data += sizeof(struct ether_header); |
---|
| 612 | ether_input(&sc->arpcom.ac_if,eh,m); |
---|
| 613 | } |
---|
| 614 | else { |
---|
| 615 | /* |
---|
| 616 | * throw away mbuf |
---|
| 617 | */ |
---|
| 618 | MFREE(m,n); |
---|
| 619 | /* |
---|
| 620 | * update statistics |
---|
| 621 | */ |
---|
| 622 | if (0 != (status & M83xx_BD_LAST)) |
---|
| 623 | sc->rxNotLast++; |
---|
| 624 | if (0 != (status & M83xx_BD_FIRST_IN_FRAME)) |
---|
| 625 | sc->rxNotFirst++; |
---|
| 626 | |
---|
| 627 | if (0 == (status & M83xx_BD_LONG)) { |
---|
| 628 | sc->rxGiant++; |
---|
| 629 | } |
---|
| 630 | if (0 == (status & M83xx_BD_NONALIGNED)) { |
---|
| 631 | sc->rxNonOctet++; |
---|
| 632 | } |
---|
| 633 | if (0 == (status & M83xx_BD_CRC_ERROR)) { |
---|
| 634 | sc->rxBadCRC++; |
---|
| 635 | } |
---|
| 636 | if (0 == (status & M83xx_BD_OVERRUN)) { |
---|
| 637 | sc->rxOverrun++; |
---|
| 638 | } |
---|
| 639 | } |
---|
| 640 | /* |
---|
| 641 | * mark buffer as non-allocated (for refill) |
---|
| 642 | */ |
---|
| 643 | BD_ptr->buffer = NULL; |
---|
| 644 | /* |
---|
| 645 | * Advance BD_ptr to next BD |
---|
| 646 | */ |
---|
| 647 | BD_ptr = ((BD_ptr == sc->Rx_Last_BD) |
---|
| 648 | ? sc->Rx_Frst_BD |
---|
| 649 | : BD_ptr+1); |
---|
| 650 | } |
---|
| 651 | sc->Rx_NxtUsed_BD = BD_ptr; |
---|
| 652 | } |
---|
| 653 | |
---|
| 654 | /*=========================================================================*\ |
---|
| 655 | | Function: | |
---|
| 656 | \*-------------------------------------------------------------------------*/ |
---|
| 657 | static void mpc83xx_tsec_refill_rxbds |
---|
| 658 | ( |
---|
| 659 | /*-------------------------------------------------------------------------*\ |
---|
| 660 | | Purpose: | |
---|
| 661 | | link new buffers to rx BDs | |
---|
| 662 | +---------------------------------------------------------------------------+ |
---|
| 663 | | Input Parameters: | |
---|
| 664 | \*-------------------------------------------------------------------------*/ |
---|
| 665 | struct mpc83xx_tsec_struct *sc /* control structure */ |
---|
| 666 | ) |
---|
| 667 | /*-------------------------------------------------------------------------*\ |
---|
| 668 | | Return Value: | |
---|
| 669 | | <none> | |
---|
| 670 | \*=========================================================================*/ |
---|
| 671 | { |
---|
| 672 | PQBufferDescriptor_t *BD_ptr; |
---|
| 673 | struct mbuf *m,*n; |
---|
| 674 | boolean finished = FALSE; |
---|
| 675 | int bd_idx; |
---|
| 676 | |
---|
| 677 | BD_ptr = sc->Rx_NxtFill_BD; |
---|
| 678 | while ((BD_ptr->buffer == NULL) && |
---|
| 679 | !finished) { |
---|
| 680 | /* |
---|
| 681 | * get new mbuf and attach a cluster |
---|
| 682 | */ |
---|
| 683 | MGETHDR(m,M_DONTWAIT,MT_DATA); |
---|
| 684 | if (m != NULL) { |
---|
| 685 | MCLGET(m,M_DONTWAIT); |
---|
| 686 | if ((m->m_flags & M_EXT) == 0) { |
---|
| 687 | MFREE(m,n); |
---|
| 688 | m = NULL; |
---|
| 689 | } |
---|
| 690 | } |
---|
| 691 | if (m == NULL) { |
---|
| 692 | finished = TRUE; |
---|
| 693 | } |
---|
| 694 | else { |
---|
| 695 | bd_idx = BD_ptr - sc->Rx_Frst_BD; |
---|
| 696 | sc->Rx_mBuf_Ptr[bd_idx] = m; |
---|
| 697 | |
---|
| 698 | m->m_pkthdr.rcvif= &sc->arpcom.ac_if; |
---|
| 699 | m->m_data = M83xx_TSEC_ALIGN_BUFFER(m->m_ext.ext_buf,64); |
---|
| 700 | BD_ptr->buffer = m->m_data; |
---|
| 701 | BD_ptr->length = 0; |
---|
| 702 | BD_ptr->status = (M83xx_BD_EMPTY |
---|
| 703 | | M83xx_BD_INTERRUPT |
---|
| 704 | | ((BD_ptr == sc->Rx_Last_BD) |
---|
| 705 | ? M83xx_BD_WRAP |
---|
| 706 | : 0)); |
---|
| 707 | /* |
---|
| 708 | * Advance BD_ptr to next BD |
---|
| 709 | */ |
---|
| 710 | BD_ptr = ((BD_ptr == sc->Rx_Last_BD) |
---|
| 711 | ? sc->Rx_Frst_BD |
---|
| 712 | : BD_ptr+1); |
---|
| 713 | } |
---|
| 714 | } |
---|
| 715 | sc->Rx_NxtFill_BD = BD_ptr; |
---|
| 716 | } |
---|
| 717 | |
---|
| 718 | /*=========================================================================*\ |
---|
| 719 | | Function: | |
---|
| 720 | \*-------------------------------------------------------------------------*/ |
---|
| 721 | static void mpc83xx_tsec_rxDaemon |
---|
| 722 | ( |
---|
| 723 | /*-------------------------------------------------------------------------*\ |
---|
| 724 | | Purpose: | |
---|
| 725 | | handle all rx buffers and events | |
---|
| 726 | +---------------------------------------------------------------------------+ |
---|
| 727 | | Input Parameters: | |
---|
| 728 | \*-------------------------------------------------------------------------*/ |
---|
| 729 | void * arg /* argument, is sc structure ptr */ |
---|
| 730 | ) |
---|
| 731 | /*-------------------------------------------------------------------------*\ |
---|
| 732 | | Return Value: | |
---|
| 733 | | <none> | |
---|
| 734 | \*=========================================================================*/ |
---|
| 735 | { |
---|
| 736 | struct mpc83xx_tsec_struct *sc = |
---|
| 737 | (struct mpc83xx_tsec_struct *)arg; |
---|
| 738 | int finished = FALSE; |
---|
| 739 | rtems_event_set events; |
---|
| 740 | #if !defined(CLREVENT_IN_IRQ) |
---|
| 741 | uint32_t irq_events; |
---|
| 742 | #endif |
---|
| 743 | /* |
---|
| 744 | * enable Rx in MACCFG1 register |
---|
| 745 | */ |
---|
| 746 | sc->reg_ptr->maccfg1 |= M83xx_TSEC_MACCFG1_RXEN; |
---|
| 747 | while (!finished) { |
---|
| 748 | /* |
---|
| 749 | * fetch MBufs, associate them to RxBDs |
---|
| 750 | */ |
---|
| 751 | mpc83xx_tsec_refill_rxbds(sc); |
---|
| 752 | /* |
---|
| 753 | * wait for events to come in |
---|
| 754 | */ |
---|
| 755 | events = mpc83xx_tsec_rx_wait_for_events(sc,INTERRUPT_EVENT); |
---|
| 756 | #if !defined(CLREVENT_IN_IRQ) |
---|
| 757 | /* |
---|
| 758 | * clear any pending RX events |
---|
| 759 | */ |
---|
| 760 | irq_events = sc->reg_ptr->ievent & M83xx_IEVENT_RXALL; |
---|
| 761 | sc->reg_ptr->ievent = irq_events; |
---|
| 762 | #endif |
---|
| 763 | /* |
---|
| 764 | * fetch any completed buffers/packets received |
---|
| 765 | * and stuff them into the TCP/IP Stack |
---|
| 766 | */ |
---|
| 767 | mpc83xx_tsec_receive_packets(sc); |
---|
| 768 | } |
---|
| 769 | /* |
---|
| 770 | * disable Rx in MACCFG1 register |
---|
| 771 | */ |
---|
| 772 | sc->reg_ptr->maccfg1 &= ~M83xx_TSEC_MACCFG1_RXEN; |
---|
| 773 | /* |
---|
| 774 | * terminate daemon |
---|
| 775 | */ |
---|
| 776 | sc->rxDaemonTid = 0; |
---|
| 777 | rtems_task_delete(RTEMS_SELF); |
---|
| 778 | } |
---|
| 779 | |
---|
| 780 | /***************************************************************************\ |
---|
| 781 | | TX Transmit functions | |
---|
| 782 | \***************************************************************************/ |
---|
| 783 | |
---|
| 784 | /*=========================================================================*\ |
---|
| 785 | | Function: | |
---|
| 786 | \*-------------------------------------------------------------------------*/ |
---|
| 787 | static void mpc83xx_txbd_alloc_clear |
---|
| 788 | ( |
---|
| 789 | /*-------------------------------------------------------------------------*\ |
---|
| 790 | | Purpose: | |
---|
| 791 | | allocate space for Tx BDs, clear them | |
---|
| 792 | +---------------------------------------------------------------------------+ |
---|
| 793 | | Input Parameters: | |
---|
| 794 | \*-------------------------------------------------------------------------*/ |
---|
| 795 | struct mpc83xx_tsec_struct *sc /* control structure */ |
---|
| 796 | ) |
---|
| 797 | /*-------------------------------------------------------------------------*\ |
---|
| 798 | | Return Value: | |
---|
| 799 | | <none> | |
---|
| 800 | \*=========================================================================*/ |
---|
| 801 | { |
---|
| 802 | char *alloc_ptr; |
---|
| 803 | PQBufferDescriptor_t *BD_ptr; |
---|
| 804 | /* |
---|
| 805 | * allocate proper space for Tx BDs |
---|
| 806 | */ |
---|
| 807 | alloc_ptr = calloc((sc->txBdCount+1),sizeof(PQBufferDescriptor_t)); |
---|
| 808 | if (alloc_ptr == NULL) { |
---|
| 809 | rtems_panic("TSEC: cannot allocate space for Tx BDs"); |
---|
| 810 | } |
---|
| 811 | alloc_ptr = (void *)((uint32_t )((alloc_ptr + (sizeof(PQBufferDescriptor_t)-1))) |
---|
| 812 | & ~(sizeof(PQBufferDescriptor_t)-1)); |
---|
| 813 | /* |
---|
| 814 | * store pointers to certain positions in BD chain |
---|
| 815 | */ |
---|
| 816 | sc->Tx_Last_BD = ((PQBufferDescriptor_t *)alloc_ptr)+sc->txBdCount-1; |
---|
| 817 | sc->Tx_Frst_BD = (PQBufferDescriptor_t *)alloc_ptr; |
---|
| 818 | sc->Tx_NxtUsed_BD = sc->Tx_Frst_BD; |
---|
| 819 | sc->Tx_NxtFill_BD = sc->Tx_Frst_BD; |
---|
| 820 | |
---|
| 821 | /* |
---|
| 822 | * clear all BDs |
---|
| 823 | */ |
---|
| 824 | for (BD_ptr = sc->Tx_Frst_BD; |
---|
| 825 | BD_ptr <= sc->Tx_Last_BD; |
---|
| 826 | BD_ptr++) { |
---|
| 827 | BD_ptr->status = 0; |
---|
| 828 | } |
---|
| 829 | /* |
---|
| 830 | * Init BD chain registers |
---|
| 831 | */ |
---|
| 832 | sc->reg_ptr->tbase = (uint32_t)(sc->Tx_Frst_BD); |
---|
| 833 | } |
---|
| 834 | |
---|
| 835 | /*=========================================================================*\ |
---|
| 836 | | Function: | |
---|
| 837 | \*-------------------------------------------------------------------------*/ |
---|
| 838 | void mpc83xx_tsec_tx_start |
---|
| 839 | ( |
---|
| 840 | /*-------------------------------------------------------------------------*\ |
---|
| 841 | | Purpose: | |
---|
| 842 | | start transmission | |
---|
| 843 | +---------------------------------------------------------------------------+ |
---|
| 844 | | Input Parameters: | |
---|
| 845 | \*-------------------------------------------------------------------------*/ |
---|
| 846 | struct ifnet *ifp |
---|
| 847 | ) |
---|
| 848 | /*-------------------------------------------------------------------------*\ |
---|
| 849 | | Return Value: | |
---|
| 850 | | <none> | |
---|
| 851 | \*=========================================================================*/ |
---|
| 852 | { |
---|
| 853 | struct mpc83xx_tsec_struct *sc = ifp->if_softc; |
---|
| 854 | |
---|
| 855 | ifp->if_flags |= IFF_OACTIVE; |
---|
| 856 | |
---|
| 857 | rtems_event_send (sc->txDaemonTid, START_TRANSMIT_EVENT); |
---|
| 858 | } |
---|
| 859 | |
---|
| 860 | /*=========================================================================*\ |
---|
| 861 | | Function: | |
---|
| 862 | \*-------------------------------------------------------------------------*/ |
---|
| 863 | static rtems_event_set mpc83xx_tsec_tx_wait_for_events |
---|
| 864 | ( |
---|
| 865 | /*-------------------------------------------------------------------------*\ |
---|
| 866 | | Purpose: | |
---|
| 867 | | handle all tx events | |
---|
| 868 | +---------------------------------------------------------------------------+ |
---|
| 869 | | Input Parameters: | |
---|
| 870 | \*-------------------------------------------------------------------------*/ |
---|
| 871 | struct mpc83xx_tsec_struct *sc, /* control structure */ |
---|
| 872 | rtems_event_set event_mask /* events to wait for */ |
---|
| 873 | ) |
---|
| 874 | /*-------------------------------------------------------------------------*\ |
---|
| 875 | | Return Value: | |
---|
| 876 | | event set received | |
---|
| 877 | \*=========================================================================*/ |
---|
| 878 | { |
---|
| 879 | rtems_event_set events; /* events received */ |
---|
| 880 | /* |
---|
| 881 | * enable Tx interrupts, make sure this is not interrupted :-) |
---|
| 882 | */ |
---|
| 883 | M83xx_TSEC_IMASK_SET(sc->reg_ptr->imask,M83xx_IEVENT_TXALL,~0); |
---|
| 884 | |
---|
| 885 | /* |
---|
| 886 | * wait for events to come in |
---|
| 887 | */ |
---|
| 888 | rtems_bsdnet_event_receive(event_mask, |
---|
| 889 | RTEMS_EVENT_ANY | RTEMS_WAIT, |
---|
| 890 | RTEMS_NO_TIMEOUT, |
---|
| 891 | &events); |
---|
| 892 | return events; |
---|
| 893 | } |
---|
| 894 | |
---|
| 895 | /*=========================================================================*\ |
---|
| 896 | | Function: | |
---|
| 897 | \*-------------------------------------------------------------------------*/ |
---|
| 898 | static void mpc83xx_tsec_tx_retire |
---|
| 899 | ( |
---|
| 900 | /*-------------------------------------------------------------------------*\ |
---|
| 901 | | Purpose: | |
---|
| 902 | | handle all tx events | |
---|
| 903 | +---------------------------------------------------------------------------+ |
---|
| 904 | | Input Parameters: | |
---|
| 905 | \*-------------------------------------------------------------------------*/ |
---|
| 906 | struct mpc83xx_tsec_struct *sc /* control structure */ |
---|
| 907 | ) |
---|
| 908 | /*-------------------------------------------------------------------------*\ |
---|
| 909 | | Return Value: | |
---|
| 910 | | <none> | |
---|
| 911 | \*=========================================================================*/ |
---|
| 912 | { |
---|
| 913 | PQBufferDescriptor_t *RetBD; |
---|
| 914 | RetBD = sc->Tx_NxtUsed_BD; |
---|
| 915 | int bd_idx; |
---|
| 916 | struct mbuf *m,*n; |
---|
| 917 | /* |
---|
| 918 | * check next BDs to be empty |
---|
| 919 | */ |
---|
| 920 | while ((RetBD->buffer != NULL) /* BD is filled */ |
---|
| 921 | && (0 == (RetBD->status & M83xx_BD_READY ))) {/* BD no longer ready*/ |
---|
| 922 | |
---|
| 923 | bd_idx = RetBD - sc->Tx_Frst_BD; |
---|
| 924 | m = sc->Tx_mBuf_Ptr[bd_idx]; |
---|
| 925 | sc->Tx_mBuf_Ptr[bd_idx] = NULL; |
---|
| 926 | |
---|
| 927 | MFREE(m,n); |
---|
| 928 | RetBD->buffer = NULL; |
---|
| 929 | /* |
---|
| 930 | * Advance CurrBD to next BD |
---|
| 931 | */ |
---|
| 932 | RetBD = ((RetBD == sc->Tx_Last_BD) |
---|
| 933 | ? sc->Tx_Frst_BD |
---|
| 934 | : RetBD+1); |
---|
| 935 | } |
---|
| 936 | sc->Tx_NxtUsed_BD = RetBD; |
---|
| 937 | } |
---|
| 938 | |
---|
| 939 | /*=========================================================================*\ |
---|
| 940 | | Function: | |
---|
| 941 | \*-------------------------------------------------------------------------*/ |
---|
| 942 | static void mpc83xx_tsec_sendpacket |
---|
| 943 | ( |
---|
| 944 | /*-------------------------------------------------------------------------*\ |
---|
| 945 | | Purpose: | |
---|
| 946 | | handle all tx events | |
---|
| 947 | +---------------------------------------------------------------------------+ |
---|
| 948 | | Input Parameters: | |
---|
| 949 | \*-------------------------------------------------------------------------*/ |
---|
| 950 | struct mpc83xx_tsec_struct *sc, /* control structure */ |
---|
| 951 | struct mbuf *m /* start of packet to send */ |
---|
| 952 | ) |
---|
| 953 | /*-------------------------------------------------------------------------*\ |
---|
| 954 | | Return Value: | |
---|
| 955 | | <none> | |
---|
| 956 | \*=========================================================================*/ |
---|
| 957 | { |
---|
| 958 | PQBufferDescriptor_t *FrstBD = NULL; |
---|
| 959 | PQBufferDescriptor_t *CurrBD; |
---|
| 960 | uint16_t status; |
---|
| 961 | struct mbuf *l = NULL; /* ptr to last non-freed (non-empty) mbuf */ |
---|
| 962 | int bd_idx; |
---|
| 963 | /* |
---|
| 964 | * get next Tx BD |
---|
| 965 | */ |
---|
| 966 | CurrBD = sc->Tx_NxtFill_BD; |
---|
| 967 | while (m) { |
---|
| 968 | if(m->m_len == 0) { |
---|
| 969 | /* |
---|
| 970 | * Just toss empty mbufs |
---|
| 971 | */ |
---|
| 972 | struct mbuf *n; |
---|
| 973 | MFREE(m, n); |
---|
| 974 | m = n; |
---|
| 975 | if(l != NULL) { |
---|
| 976 | l->m_next = m; |
---|
| 977 | } |
---|
| 978 | } |
---|
| 979 | else { |
---|
| 980 | /* |
---|
| 981 | * this mbuf is non-empty, so send it |
---|
| 982 | */ |
---|
| 983 | /* |
---|
| 984 | * Is CurrBD still in Use/not yet retired? |
---|
| 985 | */ |
---|
| 986 | while (CurrBD->buffer != NULL) { |
---|
| 987 | /* |
---|
| 988 | * Then try to retire it |
---|
| 989 | * and to return its mbuf |
---|
| 990 | */ |
---|
| 991 | mpc83xx_tsec_tx_retire(sc); |
---|
| 992 | if (CurrBD->buffer != NULL) { |
---|
| 993 | /* |
---|
| 994 | * Wait for anything to happen... |
---|
| 995 | */ |
---|
| 996 | mpc83xx_tsec_tx_wait_for_events(sc,INTERRUPT_EVENT); |
---|
| 997 | } |
---|
| 998 | } |
---|
| 999 | status = ((M83xx_BD_PAD_CRC | M83xx_BD_TX_CRC) |
---|
| 1000 | | ((m->m_next == NULL) |
---|
| 1001 | ? M83xx_BD_LAST | M83xx_BD_INTERRUPT |
---|
| 1002 | : 0) |
---|
| 1003 | | ((CurrBD == sc->Tx_Last_BD) ? M83xx_BD_WRAP : 0)); |
---|
| 1004 | |
---|
| 1005 | /* |
---|
| 1006 | * link buffer to BD |
---|
| 1007 | */ |
---|
| 1008 | CurrBD->buffer = mtod(m, void *); |
---|
| 1009 | CurrBD->length = (uint32_t)m->m_len; |
---|
| 1010 | l = m; /* remember: we use this mbuf */ |
---|
| 1011 | |
---|
| 1012 | bd_idx = CurrBD - sc->Tx_Frst_BD; |
---|
| 1013 | sc->Tx_mBuf_Ptr[bd_idx] = m; |
---|
| 1014 | |
---|
| 1015 | m = m->m_next; /* advance to next mbuf of this packet */ |
---|
| 1016 | /* |
---|
| 1017 | * is this the first BD of the packet? |
---|
| 1018 | * then don't set it to "READY" state, |
---|
| 1019 | * and remember this BD position |
---|
| 1020 | */ |
---|
| 1021 | if (FrstBD == NULL) { |
---|
| 1022 | FrstBD = CurrBD; |
---|
| 1023 | } |
---|
| 1024 | else { |
---|
| 1025 | status |= M83xx_BD_READY; |
---|
| 1026 | } |
---|
| 1027 | CurrBD->status = status; |
---|
| 1028 | /* |
---|
| 1029 | * Advance CurrBD to next BD |
---|
| 1030 | */ |
---|
| 1031 | CurrBD = ((CurrBD == sc->Tx_Last_BD) |
---|
| 1032 | ? sc->Tx_Frst_BD |
---|
| 1033 | : CurrBD+1); |
---|
| 1034 | } |
---|
| 1035 | } |
---|
| 1036 | /* |
---|
| 1037 | * mbuf chain of this packet |
---|
| 1038 | * has been translated |
---|
| 1039 | * to BD chain, so set first BD ready now |
---|
| 1040 | */ |
---|
| 1041 | if (FrstBD != NULL) { |
---|
| 1042 | FrstBD->status |= M83xx_BD_READY; |
---|
| 1043 | } |
---|
| 1044 | sc->Tx_NxtFill_BD = CurrBD; |
---|
| 1045 | /* |
---|
| 1046 | * wake up transmitter (clear TSTAT[THLT]) |
---|
| 1047 | */ |
---|
| 1048 | sc->reg_ptr->tstat = M83xx_TSEC_TSTAT_THLT; |
---|
| 1049 | } |
---|
| 1050 | |
---|
| 1051 | /*=========================================================================*\ |
---|
| 1052 | | Function: | |
---|
| 1053 | \*-------------------------------------------------------------------------*/ |
---|
| 1054 | static void mpc83xx_tsec_txDaemon |
---|
| 1055 | ( |
---|
| 1056 | /*-------------------------------------------------------------------------*\ |
---|
| 1057 | | Purpose: | |
---|
| 1058 | | handle all tx events | |
---|
| 1059 | +---------------------------------------------------------------------------+ |
---|
| 1060 | | Input Parameters: | |
---|
| 1061 | \*-------------------------------------------------------------------------*/ |
---|
| 1062 | void * arg /* argument, is sc structure ptr */ |
---|
| 1063 | ) |
---|
| 1064 | /*-------------------------------------------------------------------------*\ |
---|
| 1065 | | Return Value: | |
---|
| 1066 | | <none> | |
---|
| 1067 | \*=========================================================================*/ |
---|
| 1068 | { |
---|
| 1069 | struct mpc83xx_tsec_struct *sc = |
---|
| 1070 | (struct mpc83xx_tsec_struct *)arg; |
---|
| 1071 | struct ifnet *ifp = &sc->arpcom.ac_if; |
---|
| 1072 | struct mbuf *m; |
---|
| 1073 | int finished = FALSE; |
---|
| 1074 | rtems_event_set events; |
---|
| 1075 | #if !defined(CLREVENT_IN_IRQ) |
---|
| 1076 | uint32_t irq_events; |
---|
| 1077 | #endif |
---|
| 1078 | |
---|
| 1079 | /* |
---|
| 1080 | * enable Tx in MACCFG1 register |
---|
| 1081 | * FIXME: make this irq save |
---|
| 1082 | */ |
---|
| 1083 | sc->reg_ptr->maccfg1 |= M83xx_TSEC_MACCFG1_TXEN; |
---|
| 1084 | while (!finished) { |
---|
| 1085 | /* |
---|
| 1086 | * wait for events to come in |
---|
| 1087 | */ |
---|
| 1088 | events = mpc83xx_tsec_tx_wait_for_events(sc, |
---|
| 1089 | START_TRANSMIT_EVENT |
---|
| 1090 | | INTERRUPT_EVENT); |
---|
| 1091 | #if !defined(CLREVENT_IN_IRQ) |
---|
| 1092 | /* |
---|
| 1093 | * clear any pending TX events |
---|
| 1094 | */ |
---|
| 1095 | irq_events = sc->reg_ptr->ievent & M83xx_IEVENT_TXALL; |
---|
| 1096 | sc->reg_ptr->ievent = irq_events; |
---|
| 1097 | #endif |
---|
| 1098 | /* |
---|
| 1099 | * retire any sent tx BDs |
---|
| 1100 | */ |
---|
| 1101 | mpc83xx_tsec_tx_retire(sc); |
---|
| 1102 | /* |
---|
| 1103 | * Send packets till queue is empty |
---|
| 1104 | */ |
---|
| 1105 | do { |
---|
| 1106 | /* |
---|
| 1107 | * Get the next mbuf chain to transmit. |
---|
| 1108 | */ |
---|
| 1109 | IF_DEQUEUE(&ifp->if_snd, m); |
---|
| 1110 | |
---|
| 1111 | if (m) { |
---|
| 1112 | mpc83xx_tsec_sendpacket(sc,m); |
---|
| 1113 | } |
---|
| 1114 | } while (m != NULL); |
---|
| 1115 | |
---|
| 1116 | ifp->if_flags &= ~IFF_OACTIVE; |
---|
| 1117 | } |
---|
| 1118 | /* |
---|
| 1119 | * disable Tx in MACCFG1 register |
---|
| 1120 | */ |
---|
| 1121 | sc->reg_ptr->maccfg1 &= ~M83xx_TSEC_MACCFG1_TXEN; |
---|
| 1122 | /* |
---|
| 1123 | * terminate daemon |
---|
| 1124 | */ |
---|
| 1125 | sc->txDaemonTid = 0; |
---|
| 1126 | rtems_task_delete(RTEMS_SELF); |
---|
| 1127 | } |
---|
| 1128 | |
---|
| 1129 | /***************************************************************************\ |
---|
| 1130 | | Interrupt handlers and management routines | |
---|
| 1131 | \***************************************************************************/ |
---|
| 1132 | |
---|
| 1133 | /*=========================================================================*\ |
---|
| 1134 | | Function: | |
---|
| 1135 | \*-------------------------------------------------------------------------*/ |
---|
| 1136 | static void mpc83xx_tsec_tx_irq_handler |
---|
| 1137 | ( |
---|
| 1138 | /*-------------------------------------------------------------------------*\ |
---|
| 1139 | | Purpose: | |
---|
| 1140 | | handle tx interrupts | |
---|
| 1141 | +---------------------------------------------------------------------------+ |
---|
| 1142 | | Input Parameters: | |
---|
| 1143 | \*-------------------------------------------------------------------------*/ |
---|
| 1144 | rtems_irq_hdl_param handle /* handle, is sc structure ptr */ |
---|
| 1145 | ) |
---|
| 1146 | /*-------------------------------------------------------------------------*\ |
---|
| 1147 | | Return Value: | |
---|
| 1148 | | <none> | |
---|
| 1149 | \*=========================================================================*/ |
---|
| 1150 | { |
---|
| 1151 | struct mpc83xx_tsec_struct *sc = |
---|
| 1152 | (struct mpc83xx_tsec_struct *)handle; |
---|
| 1153 | #if defined(CLREVENT_IN_IRQ) |
---|
| 1154 | uint32_t irq_events; |
---|
| 1155 | #endif |
---|
| 1156 | |
---|
| 1157 | sc->txInterrupts++; |
---|
| 1158 | /* |
---|
| 1159 | * disable tx interrupts |
---|
| 1160 | */ |
---|
| 1161 | M83xx_TSEC_IMASK_SET(sc->reg_ptr->imask,M83xx_IEVENT_TXALL,0); |
---|
| 1162 | |
---|
| 1163 | #if defined(CLREVENT_IN_IRQ) |
---|
| 1164 | /* |
---|
| 1165 | * clear any pending TX events |
---|
| 1166 | */ |
---|
| 1167 | irq_events = sc->reg_ptr->ievent & M83xx_IEVENT_TXALL; |
---|
| 1168 | sc->reg_ptr->ievent = irq_events; |
---|
| 1169 | #endif |
---|
| 1170 | /* |
---|
| 1171 | * wake up tx Daemon |
---|
| 1172 | */ |
---|
| 1173 | rtems_event_send(sc->txDaemonTid, INTERRUPT_EVENT); |
---|
| 1174 | } |
---|
| 1175 | |
---|
| 1176 | /*=========================================================================*\ |
---|
| 1177 | | Function: | |
---|
| 1178 | \*-------------------------------------------------------------------------*/ |
---|
| 1179 | static void mpc83xx_tsec_rx_irq_handler |
---|
| 1180 | ( |
---|
| 1181 | /*-------------------------------------------------------------------------*\ |
---|
| 1182 | | Purpose: | |
---|
| 1183 | | handle rx interrupts | |
---|
| 1184 | +---------------------------------------------------------------------------+ |
---|
| 1185 | | Input Parameters: | |
---|
| 1186 | \*-------------------------------------------------------------------------*/ |
---|
| 1187 | rtems_irq_hdl_param handle /* handle, is sc structure */ |
---|
| 1188 | ) |
---|
| 1189 | /*-------------------------------------------------------------------------*\ |
---|
| 1190 | | Return Value: | |
---|
| 1191 | | <none> | |
---|
| 1192 | \*=========================================================================*/ |
---|
| 1193 | { |
---|
| 1194 | struct mpc83xx_tsec_struct *sc = |
---|
| 1195 | (struct mpc83xx_tsec_struct *)handle; |
---|
| 1196 | #if defined(CLREVENT_IN_IRQ) |
---|
| 1197 | uint32_t irq_events; |
---|
| 1198 | #endif |
---|
| 1199 | |
---|
| 1200 | sc->rxInterrupts++; |
---|
| 1201 | /* |
---|
| 1202 | * disable rx interrupts |
---|
| 1203 | */ |
---|
| 1204 | M83xx_TSEC_IMASK_SET(sc->reg_ptr->imask,M83xx_IEVENT_RXALL,0); |
---|
| 1205 | #if defined(CLREVENT_IN_IRQ) |
---|
| 1206 | /* |
---|
| 1207 | * clear any pending RX events |
---|
| 1208 | */ |
---|
| 1209 | irq_events = sc->reg_ptr->ievent & M83xx_IEVENT_RXALL; |
---|
| 1210 | sc->reg_ptr->ievent = irq_events; |
---|
| 1211 | #endif |
---|
| 1212 | /* |
---|
| 1213 | * wake up rx Daemon< |
---|
| 1214 | */ |
---|
| 1215 | rtems_event_send(sc->rxDaemonTid, INTERRUPT_EVENT); |
---|
| 1216 | } |
---|
| 1217 | |
---|
| 1218 | |
---|
| 1219 | /*=========================================================================*\ |
---|
| 1220 | | Function: | |
---|
| 1221 | \*-------------------------------------------------------------------------*/ |
---|
| 1222 | static void mpc83xx_tsec_err_irq_handler |
---|
| 1223 | ( |
---|
| 1224 | /*-------------------------------------------------------------------------*\ |
---|
| 1225 | | Purpose: | |
---|
| 1226 | | handle error interrupts | |
---|
| 1227 | +---------------------------------------------------------------------------+ |
---|
| 1228 | | Input Parameters: | |
---|
| 1229 | \*-------------------------------------------------------------------------*/ |
---|
| 1230 | rtems_irq_hdl_param handle /* handle, is sc structure */ |
---|
| 1231 | ) |
---|
| 1232 | /*-------------------------------------------------------------------------*\ |
---|
| 1233 | | Return Value: | |
---|
| 1234 | | <none> | |
---|
| 1235 | \*=========================================================================*/ |
---|
| 1236 | { |
---|
| 1237 | /* |
---|
| 1238 | * FIXME: check error conditions, do something useful |
---|
| 1239 | */ |
---|
| 1240 | #if 0 |
---|
| 1241 | /* |
---|
| 1242 | * disable error interrupts |
---|
| 1243 | */ |
---|
| 1244 | M83xx_TSEC_IMASK_SET(sc->reg_ptr->imask,M83xx_IEVENT_ERRALL,0); |
---|
| 1245 | /* |
---|
| 1246 | * FIXME: do something :-) |
---|
| 1247 | */ |
---|
| 1248 | #endif |
---|
| 1249 | } |
---|
| 1250 | |
---|
| 1251 | |
---|
| 1252 | /*=========================================================================*\ |
---|
| 1253 | | Function: | |
---|
| 1254 | \*-------------------------------------------------------------------------*/ |
---|
| 1255 | static uint32_t mpc83xx_tsec_irq_mask |
---|
| 1256 | ( |
---|
| 1257 | /*-------------------------------------------------------------------------*\ |
---|
| 1258 | | Purpose: | |
---|
| 1259 | | determine irq mask for given interrupt number | |
---|
| 1260 | +---------------------------------------------------------------------------+ |
---|
| 1261 | | Input Parameters: | |
---|
| 1262 | \*-------------------------------------------------------------------------*/ |
---|
| 1263 | int irqnum, |
---|
| 1264 | struct mpc83xx_tsec_struct *sc |
---|
| 1265 | ) |
---|
| 1266 | /*-------------------------------------------------------------------------*\ |
---|
| 1267 | | Return Value: | |
---|
| 1268 | | interrupt mask (for ievent/imask register) | |
---|
| 1269 | \*=========================================================================*/ |
---|
| 1270 | { |
---|
| 1271 | return ((irqnum == sc->irq_num_tx) |
---|
| 1272 | ? M83xx_IEVENT_TXALL |
---|
| 1273 | : ((irqnum == sc->irq_num_rx) |
---|
| 1274 | ? M83xx_IEVENT_RXALL |
---|
| 1275 | : ((irqnum == sc->irq_num_err) |
---|
| 1276 | ? M83xx_IEVENT_ERRALL |
---|
| 1277 | : 0))); |
---|
| 1278 | } |
---|
| 1279 | /*=========================================================================*\ |
---|
| 1280 | | Function: | |
---|
| 1281 | \*-------------------------------------------------------------------------*/ |
---|
| 1282 | static void mpc83xx_tsec_irq_on |
---|
| 1283 | ( |
---|
| 1284 | /*-------------------------------------------------------------------------*\ |
---|
| 1285 | | Purpose: | |
---|
| 1286 | | enable interrupts in TSEC mask register | |
---|
| 1287 | +---------------------------------------------------------------------------+ |
---|
| 1288 | | Input Parameters: | |
---|
| 1289 | \*-------------------------------------------------------------------------*/ |
---|
| 1290 | const |
---|
| 1291 | rtems_irq_connect_data *irq_conn_data /* irq connect data */ |
---|
| 1292 | ) |
---|
| 1293 | /*-------------------------------------------------------------------------*\ |
---|
| 1294 | | Return Value: | |
---|
| 1295 | | <none> | |
---|
| 1296 | \*=========================================================================*/ |
---|
| 1297 | { |
---|
| 1298 | struct mpc83xx_tsec_struct *sc = |
---|
| 1299 | (struct mpc83xx_tsec_struct *)(irq_conn_data->handle); |
---|
| 1300 | |
---|
| 1301 | M83xx_TSEC_IMASK_SET(sc->reg_ptr->imask, |
---|
| 1302 | mpc83xx_tsec_irq_mask(irq_conn_data->name,sc), |
---|
| 1303 | ~0); |
---|
| 1304 | } |
---|
| 1305 | |
---|
| 1306 | /*=========================================================================*\ |
---|
| 1307 | | Function: | |
---|
| 1308 | \*-------------------------------------------------------------------------*/ |
---|
| 1309 | static void mpc83xx_tsec_irq_off |
---|
| 1310 | ( |
---|
| 1311 | /*-------------------------------------------------------------------------*\ |
---|
| 1312 | | Purpose: | |
---|
| 1313 | | disable TX interrupts in TSEC mask register | |
---|
| 1314 | +---------------------------------------------------------------------------+ |
---|
| 1315 | | Input Parameters: | |
---|
| 1316 | \*-------------------------------------------------------------------------*/ |
---|
| 1317 | const |
---|
| 1318 | rtems_irq_connect_data *irq_conn_data /* irq connect data */ |
---|
| 1319 | ) |
---|
| 1320 | /*-------------------------------------------------------------------------*\ |
---|
| 1321 | | Return Value: | |
---|
| 1322 | | <none> | |
---|
| 1323 | \*=========================================================================*/ |
---|
| 1324 | { |
---|
| 1325 | struct mpc83xx_tsec_struct *sc = |
---|
| 1326 | (struct mpc83xx_tsec_struct *)irq_conn_data->handle; |
---|
| 1327 | |
---|
| 1328 | M83xx_TSEC_IMASK_SET(sc->reg_ptr->imask, |
---|
| 1329 | mpc83xx_tsec_irq_mask(irq_conn_data->name,sc), |
---|
| 1330 | 0); |
---|
| 1331 | } |
---|
| 1332 | |
---|
| 1333 | /*=========================================================================*\ |
---|
| 1334 | | Function: | |
---|
| 1335 | \*-------------------------------------------------------------------------*/ |
---|
| 1336 | static int mpc83xx_tsec_irq_isOn |
---|
| 1337 | ( |
---|
| 1338 | /*-------------------------------------------------------------------------*\ |
---|
| 1339 | | Purpose: | |
---|
| 1340 | | check state of interrupts in TSEC mask register | |
---|
| 1341 | +---------------------------------------------------------------------------+ |
---|
| 1342 | | Input Parameters: | |
---|
| 1343 | \*-------------------------------------------------------------------------*/ |
---|
| 1344 | const |
---|
| 1345 | rtems_irq_connect_data *irq_conn_data /* irq connect data */ |
---|
| 1346 | ) |
---|
| 1347 | /*-------------------------------------------------------------------------*\ |
---|
| 1348 | | Return Value: | |
---|
| 1349 | | <none> | |
---|
| 1350 | \*=========================================================================*/ |
---|
| 1351 | { |
---|
| 1352 | struct mpc83xx_tsec_struct *sc = |
---|
| 1353 | (struct mpc83xx_tsec_struct *)irq_conn_data->handle; |
---|
| 1354 | |
---|
| 1355 | return (0 != (sc->reg_ptr->imask |
---|
| 1356 | & mpc83xx_tsec_irq_mask(irq_conn_data->name,sc))); |
---|
| 1357 | } |
---|
| 1358 | |
---|
| 1359 | /*=========================================================================*\ |
---|
| 1360 | | Function: | |
---|
| 1361 | \*-------------------------------------------------------------------------*/ |
---|
| 1362 | static void mpc83xx_tsec_install_irq_handlers |
---|
| 1363 | ( |
---|
| 1364 | /*-------------------------------------------------------------------------*\ |
---|
| 1365 | | Purpose: | |
---|
| 1366 | | (un-)install the interrupt handlers | |
---|
| 1367 | +---------------------------------------------------------------------------+ |
---|
| 1368 | | Input Parameters: | |
---|
| 1369 | \*-------------------------------------------------------------------------*/ |
---|
| 1370 | struct mpc83xx_tsec_struct *sc, /* ptr to control structure */ |
---|
| 1371 | int install /* TRUE: install, FALSE: remove */ |
---|
| 1372 | ) |
---|
| 1373 | /*-------------------------------------------------------------------------*\ |
---|
| 1374 | | Return Value: | |
---|
| 1375 | | <none> | |
---|
| 1376 | \*=========================================================================*/ |
---|
| 1377 | { |
---|
| 1378 | int i; |
---|
| 1379 | |
---|
| 1380 | rtems_irq_connect_data irq_conn_data[3] = { |
---|
| 1381 | { |
---|
| 1382 | sc->irq_num_tx, |
---|
| 1383 | mpc83xx_tsec_tx_irq_handler, /* rtems_irq_hdl */ |
---|
| 1384 | (rtems_irq_hdl_param)sc, /* (rtems_irq_hdl_param) */ |
---|
| 1385 | mpc83xx_tsec_irq_on, /* (rtems_irq_enable) */ |
---|
| 1386 | mpc83xx_tsec_irq_off, /* (rtems_irq_disable) */ |
---|
| 1387 | mpc83xx_tsec_irq_isOn /* (rtems_irq_is_enabled) */ |
---|
| 1388 | },{ |
---|
| 1389 | sc->irq_num_rx, |
---|
| 1390 | mpc83xx_tsec_rx_irq_handler, /* rtems_irq_hdl */ |
---|
| 1391 | (rtems_irq_hdl_param)sc, /* (rtems_irq_hdl_param) */ |
---|
| 1392 | mpc83xx_tsec_irq_on, /* (rtems_irq_enable) */ |
---|
| 1393 | mpc83xx_tsec_irq_off, /* (rtems_irq_disable) */ |
---|
| 1394 | mpc83xx_tsec_irq_isOn /* (rtems_irq_is_enabled) */ |
---|
| 1395 | },{ |
---|
| 1396 | sc->irq_num_err, |
---|
| 1397 | mpc83xx_tsec_err_irq_handler, /* rtems_irq_hdl */ |
---|
| 1398 | (rtems_irq_hdl_param)sc, /* (rtems_irq_hdl_param) */ |
---|
| 1399 | mpc83xx_tsec_irq_on, /* (rtems_irq_enable) */ |
---|
| 1400 | mpc83xx_tsec_irq_off, /* (rtems_irq_disable) */ |
---|
| 1401 | mpc83xx_tsec_irq_isOn /* (rtems_irq_is_enabled) */ |
---|
| 1402 | } |
---|
| 1403 | }; |
---|
| 1404 | |
---|
| 1405 | /* |
---|
| 1406 | * (un-)install handler for Tx/Rx/Error |
---|
| 1407 | */ |
---|
| 1408 | for (i = 0; |
---|
| 1409 | i < sizeof(irq_conn_data)/sizeof(irq_conn_data[0]); |
---|
| 1410 | i++) { |
---|
| 1411 | if (install) { |
---|
| 1412 | if (!BSP_install_rtems_irq_handler (&irq_conn_data[i])) { |
---|
| 1413 | rtems_panic("TSEC: cannot install IRQ handler"); |
---|
| 1414 | } |
---|
| 1415 | } |
---|
| 1416 | else { |
---|
| 1417 | if (!BSP_remove_rtems_irq_handler (&irq_conn_data[i])) { |
---|
| 1418 | rtems_panic("TSEC: cannot uninstall IRQ handler"); |
---|
| 1419 | } |
---|
| 1420 | } |
---|
| 1421 | } |
---|
| 1422 | } |
---|
| 1423 | |
---|
| 1424 | /***************************************************************************\ |
---|
| 1425 | | Initialization and interface routines | |
---|
| 1426 | \***************************************************************************/ |
---|
| 1427 | |
---|
| 1428 | /*=========================================================================*\ |
---|
| 1429 | | Function: | |
---|
| 1430 | \*-------------------------------------------------------------------------*/ |
---|
| 1431 | static void mpc83xx_tsec_init |
---|
| 1432 | ( |
---|
| 1433 | /*-------------------------------------------------------------------------*\ |
---|
| 1434 | | Purpose: | |
---|
| 1435 | | initialize the driver and the hardware | |
---|
| 1436 | +---------------------------------------------------------------------------+ |
---|
| 1437 | | Input Parameters: | |
---|
| 1438 | \*-------------------------------------------------------------------------*/ |
---|
| 1439 | void *arg /* argument pointer, contains *sc */ |
---|
| 1440 | ) |
---|
| 1441 | /*-------------------------------------------------------------------------*\ |
---|
| 1442 | | Return Value: | |
---|
| 1443 | | zero, if success | |
---|
| 1444 | \*=========================================================================*/ |
---|
| 1445 | { |
---|
| 1446 | struct mpc83xx_tsec_struct *sc = (struct mpc83xx_tsec_struct *)arg; |
---|
| 1447 | struct ifnet *ifp = &sc->arpcom.ac_if; |
---|
| 1448 | /* |
---|
| 1449 | * check, whether device is not yet running |
---|
| 1450 | */ |
---|
| 1451 | if (0 == sc->rxDaemonTid) { |
---|
| 1452 | /* |
---|
| 1453 | * allocate rx/tx BDs |
---|
| 1454 | */ |
---|
| 1455 | mpc83xx_rxbd_alloc_clear(sc); |
---|
| 1456 | mpc83xx_txbd_alloc_clear(sc); |
---|
| 1457 | /* |
---|
| 1458 | * allocate storage for mbuf ptrs |
---|
| 1459 | */ |
---|
| 1460 | sc->Rx_mBuf_Ptr = calloc(sc->rxBdCount,sizeof(struct mbuf *)); |
---|
| 1461 | sc->Tx_mBuf_Ptr = calloc(sc->txBdCount,sizeof(struct mbuf *)); |
---|
| 1462 | if ((sc->Rx_mBuf_Ptr == NULL) || |
---|
| 1463 | (sc->Tx_mBuf_Ptr == NULL)) { |
---|
| 1464 | rtems_panic("TSEC: cannot allocate buffers for mbuf management"); |
---|
| 1465 | |
---|
| 1466 | } |
---|
| 1467 | |
---|
| 1468 | /* |
---|
| 1469 | * initialize TSEC hardware: |
---|
| 1470 | * - set interrupt coalescing to BDCount/8, Time of 8 frames |
---|
| 1471 | * - enable DMA snooping |
---|
| 1472 | */ |
---|
| 1473 | mpc83xx_tsec_hwinit(sc); |
---|
| 1474 | /* |
---|
| 1475 | * init access to phys |
---|
| 1476 | */ |
---|
| 1477 | mpc83xx_tsec_mdio_init(sc); |
---|
| 1478 | /* |
---|
| 1479 | * Start driver tasks |
---|
| 1480 | */ |
---|
| 1481 | sc->txDaemonTid = rtems_bsdnet_newproc("TStx", |
---|
| 1482 | 4096, |
---|
| 1483 | mpc83xx_tsec_txDaemon, |
---|
| 1484 | sc); |
---|
| 1485 | sc->rxDaemonTid = rtems_bsdnet_newproc("TSrx", 4096, |
---|
| 1486 | mpc83xx_tsec_rxDaemon, |
---|
| 1487 | sc); |
---|
| 1488 | /* |
---|
| 1489 | * install interrupt handlers |
---|
| 1490 | */ |
---|
| 1491 | mpc83xx_tsec_install_irq_handlers(sc,1); |
---|
| 1492 | } |
---|
| 1493 | /* |
---|
| 1494 | * Set flags appropriately |
---|
| 1495 | */ |
---|
| 1496 | if(ifp->if_flags & IFF_PROMISC) { |
---|
| 1497 | sc->reg_ptr->rctrl |= M83xx_TSEC_RCTRL_PROM; |
---|
| 1498 | } |
---|
| 1499 | else { |
---|
| 1500 | sc->reg_ptr->rctrl &= ~M83xx_TSEC_RCTRL_PROM; |
---|
| 1501 | } |
---|
| 1502 | |
---|
| 1503 | /* |
---|
| 1504 | * init timer so the "watchdog function gets called periodically |
---|
| 1505 | */ |
---|
| 1506 | ifp->if_timer = 1; |
---|
| 1507 | /* |
---|
| 1508 | * Tell the world that we're running. |
---|
| 1509 | */ |
---|
| 1510 | ifp->if_flags |= IFF_RUNNING; |
---|
| 1511 | } |
---|
| 1512 | |
---|
| 1513 | /*=========================================================================*\ |
---|
| 1514 | | Function: | |
---|
| 1515 | \*-------------------------------------------------------------------------*/ |
---|
| 1516 | static void mpc83xx_tsec_off |
---|
| 1517 | ( |
---|
| 1518 | /*-------------------------------------------------------------------------*\ |
---|
| 1519 | | Purpose: | |
---|
| 1520 | | deinitialize the driver and the hardware | |
---|
| 1521 | +---------------------------------------------------------------------------+ |
---|
| 1522 | | Input Parameters: | |
---|
| 1523 | \*-------------------------------------------------------------------------*/ |
---|
| 1524 | struct mpc83xx_tsec_struct *sc /* ptr to control structure */ |
---|
| 1525 | ) |
---|
| 1526 | /*-------------------------------------------------------------------------*\ |
---|
| 1527 | | Return Value: | |
---|
| 1528 | | <none> | |
---|
| 1529 | \*=========================================================================*/ |
---|
| 1530 | { |
---|
| 1531 | /* |
---|
| 1532 | * FIXME: deinitialize driver |
---|
| 1533 | */ |
---|
| 1534 | } |
---|
| 1535 | |
---|
| 1536 | /*=========================================================================*\ |
---|
| 1537 | | Function: | |
---|
| 1538 | \*-------------------------------------------------------------------------*/ |
---|
| 1539 | static void mpc83xx_tsec_stats |
---|
| 1540 | ( |
---|
| 1541 | /*-------------------------------------------------------------------------*\ |
---|
| 1542 | | Purpose: | |
---|
| 1543 | | perform io control functions | |
---|
| 1544 | +---------------------------------------------------------------------------+ |
---|
| 1545 | | Input Parameters: | |
---|
| 1546 | \*-------------------------------------------------------------------------*/ |
---|
| 1547 | struct mpc83xx_tsec_struct *sc /* ptr to control structure */ |
---|
| 1548 | ) |
---|
| 1549 | /*-------------------------------------------------------------------------*\ |
---|
| 1550 | | Return Value: | |
---|
| 1551 | | <none> | |
---|
| 1552 | \*=========================================================================*/ |
---|
| 1553 | { |
---|
| 1554 | int media; |
---|
| 1555 | int result; |
---|
| 1556 | /* |
---|
| 1557 | * fetch/print media info |
---|
| 1558 | */ |
---|
| 1559 | media = IFM_MAKEWORD(0,0,0,sc->phy_default); /* fetch from default phy */ |
---|
| 1560 | |
---|
| 1561 | result = mpc83xx_tsec_ioctl(&(sc->arpcom.ac_if), |
---|
| 1562 | SIOCGIFMEDIA, |
---|
| 1563 | (caddr_t)&media); |
---|
| 1564 | if (result == 0) { |
---|
| 1565 | rtems_ifmedia2str(media,NULL,0); |
---|
| 1566 | printf ("\n"); |
---|
| 1567 | } |
---|
| 1568 | /* |
---|
| 1569 | * print some statistics |
---|
| 1570 | */ |
---|
| 1571 | printf (" Rx Interrupts:%-8lu", sc->rxInterrupts); |
---|
| 1572 | printf (" Not First:%-8lu", sc->rxNotFirst); |
---|
| 1573 | printf (" Not Last:%-8lu\n", sc->rxNotLast); |
---|
| 1574 | printf (" Giant:%-8lu", sc->rxGiant); |
---|
| 1575 | printf (" Non-octet:%-8lu\n", sc->rxNonOctet); |
---|
| 1576 | printf (" Bad CRC:%-8lu", sc->rxBadCRC); |
---|
| 1577 | printf (" Overrun:%-8lu", sc->rxOverrun); |
---|
| 1578 | printf (" Collision:%-8lu\n", sc->rxCollision); |
---|
| 1579 | |
---|
| 1580 | printf (" Tx Interrupts:%-8lu", sc->txInterrupts); |
---|
| 1581 | printf (" Deferred:%-8lu", sc->txDeferred); |
---|
| 1582 | printf (" Late Collision:%-8lu\n", sc->txLateCollision); |
---|
| 1583 | printf ("Retransmit Limit:%-8lu", sc->txRetryLimit); |
---|
| 1584 | printf (" Underrun:%-8lu", sc->txUnderrun); |
---|
| 1585 | printf (" Misaligned:%-8lu\n", sc->txMisaligned); |
---|
| 1586 | } |
---|
| 1587 | |
---|
| 1588 | /*=========================================================================*\ |
---|
| 1589 | | Function: | |
---|
| 1590 | \*-------------------------------------------------------------------------*/ |
---|
| 1591 | static int mpc83xx_tsec_ioctl |
---|
| 1592 | ( |
---|
| 1593 | /*-------------------------------------------------------------------------*\ |
---|
| 1594 | | Purpose: | |
---|
| 1595 | | perform io control functions | |
---|
| 1596 | +---------------------------------------------------------------------------+ |
---|
| 1597 | | Input Parameters: | |
---|
| 1598 | \*-------------------------------------------------------------------------*/ |
---|
| 1599 | struct ifnet *ifp, /* interface information */ |
---|
| 1600 | ioctl_command_t command, /* ioctl command code */ |
---|
| 1601 | caddr_t data /* optional data */ |
---|
| 1602 | ) |
---|
| 1603 | /*-------------------------------------------------------------------------*\ |
---|
| 1604 | | Return Value: | |
---|
| 1605 | | zero, if success | |
---|
| 1606 | \*=========================================================================*/ |
---|
| 1607 | { |
---|
| 1608 | struct mpc83xx_tsec_struct *sc = ifp->if_softc; |
---|
| 1609 | int error = 0; |
---|
| 1610 | |
---|
| 1611 | switch(command) { |
---|
| 1612 | /* |
---|
| 1613 | * access PHY via MII |
---|
| 1614 | */ |
---|
| 1615 | case SIOCGIFMEDIA: |
---|
| 1616 | case SIOCSIFMEDIA: |
---|
| 1617 | rtems_mii_ioctl (&(sc->mdio_info),sc,command,(void *)data); |
---|
| 1618 | break; |
---|
| 1619 | case SIOCGIFADDR: |
---|
| 1620 | case SIOCSIFADDR: |
---|
| 1621 | /* |
---|
| 1622 | * pass through to general ether_ioctl |
---|
| 1623 | */ |
---|
| 1624 | ether_ioctl(ifp, command, data); |
---|
| 1625 | break; |
---|
| 1626 | |
---|
| 1627 | case SIOCSIFFLAGS: |
---|
| 1628 | /* |
---|
| 1629 | * adjust active state |
---|
| 1630 | */ |
---|
| 1631 | if (ifp->if_flags & IFF_RUNNING) { |
---|
| 1632 | mpc83xx_tsec_off(sc); |
---|
| 1633 | } |
---|
| 1634 | if (ifp->if_flags & IFF_UP) { |
---|
| 1635 | mpc83xx_tsec_off(sc); |
---|
| 1636 | } |
---|
| 1637 | break; |
---|
| 1638 | |
---|
| 1639 | case SIO_RTEMS_SHOW_STATS: |
---|
| 1640 | /* |
---|
| 1641 | * show interface statistics |
---|
| 1642 | */ |
---|
| 1643 | mpc83xx_tsec_stats(sc); |
---|
| 1644 | break; |
---|
| 1645 | |
---|
| 1646 | /* |
---|
| 1647 | * FIXME: All sorts of multicast commands need to be added here! |
---|
| 1648 | */ |
---|
| 1649 | default: |
---|
| 1650 | error = EINVAL; |
---|
| 1651 | break; |
---|
| 1652 | } |
---|
| 1653 | |
---|
| 1654 | return error; |
---|
| 1655 | } |
---|
| 1656 | |
---|
| 1657 | /* #define DEBUG */ |
---|
| 1658 | |
---|
| 1659 | /*=========================================================================*\ |
---|
| 1660 | | Function: | |
---|
| 1661 | \*-------------------------------------------------------------------------*/ |
---|
| 1662 | int rtems_mpc83xx_tsec_mode_adapt |
---|
| 1663 | ( |
---|
| 1664 | /*-------------------------------------------------------------------------*\ |
---|
| 1665 | | Purpose: | |
---|
| 1666 | | init the PHY and adapt TSEC settings | |
---|
| 1667 | +---------------------------------------------------------------------------+ |
---|
| 1668 | | Input Parameters: | |
---|
| 1669 | \*-------------------------------------------------------------------------*/ |
---|
| 1670 | struct ifnet *ifp |
---|
| 1671 | ) |
---|
| 1672 | /*-------------------------------------------------------------------------*\ |
---|
| 1673 | | Return Value: | |
---|
| 1674 | | 0, if success | |
---|
| 1675 | \*=========================================================================*/ |
---|
| 1676 | { |
---|
| 1677 | int result; |
---|
| 1678 | int media; |
---|
| 1679 | struct mpc83xx_tsec_struct *sc = ifp->if_softc; |
---|
| 1680 | |
---|
| 1681 | #ifdef DEBUG |
---|
| 1682 | printf("c"); |
---|
| 1683 | #endif |
---|
| 1684 | /* |
---|
| 1685 | * fetch media status |
---|
| 1686 | */ |
---|
| 1687 | result = mpc83xx_tsec_ioctl(ifp,SIOCGIFMEDIA,(caddr_t)&media); |
---|
| 1688 | if (result != 0) { |
---|
| 1689 | return result; |
---|
| 1690 | } |
---|
| 1691 | #ifdef DEBUG |
---|
| 1692 | printf("C"); |
---|
| 1693 | #endif |
---|
| 1694 | /* |
---|
| 1695 | * status is unchanged? then do nothing |
---|
| 1696 | */ |
---|
| 1697 | if (media == sc->media_state) { |
---|
| 1698 | return 0; |
---|
| 1699 | } |
---|
| 1700 | /* |
---|
| 1701 | * otherwise: for the first call, try to negotiate mode |
---|
| 1702 | */ |
---|
| 1703 | if (sc->media_state == 0) { |
---|
| 1704 | /* |
---|
| 1705 | * set media status: set auto negotiation -> start auto-negotiation |
---|
| 1706 | */ |
---|
| 1707 | media = IFM_MAKEWORD(0,IFM_AUTO,0,sc->phy_default); |
---|
| 1708 | result = mpc83xx_tsec_ioctl(ifp,SIOCSIFMEDIA,(caddr_t)&media); |
---|
| 1709 | if (result != 0) { |
---|
| 1710 | return result; |
---|
| 1711 | } |
---|
| 1712 | /* |
---|
| 1713 | * wait for auto-negotiation to terminate |
---|
| 1714 | */ |
---|
| 1715 | do { |
---|
| 1716 | media = IFM_MAKEWORD(0,0,0,sc->phy_default); |
---|
| 1717 | result = mpc83xx_tsec_ioctl(ifp,SIOCGIFMEDIA,(caddr_t)&media); |
---|
| 1718 | if (result != 0) { |
---|
| 1719 | return result; |
---|
| 1720 | } |
---|
| 1721 | #ifdef DEBUG |
---|
| 1722 | /* |
---|
| 1723 | * test: print current status |
---|
| 1724 | */ |
---|
| 1725 | rtems_ifmedia2str(media,NULL,0); |
---|
| 1726 | printf ("\n"); |
---|
| 1727 | #endif |
---|
| 1728 | } while (IFM_NONE == IFM_SUBTYPE(media)); |
---|
| 1729 | } |
---|
| 1730 | |
---|
| 1731 | /* |
---|
| 1732 | * now set HW according to media results: |
---|
| 1733 | */ |
---|
| 1734 | /* |
---|
| 1735 | * if we are 1000MBit, then switch IF to GMII/byte mode |
---|
| 1736 | */ |
---|
| 1737 | if (IFM_1000_T == IFM_SUBTYPE(media)) { |
---|
| 1738 | sc->reg_ptr->maccfg2 = |
---|
| 1739 | ((sc->reg_ptr->maccfg2 & ~M83xx_TSEC_MACCFG2_IFMODE_MSK) |
---|
| 1740 | | M83xx_TSEC_MACCFG2_IFMODE_BYT); |
---|
| 1741 | } |
---|
| 1742 | else { |
---|
| 1743 | sc->reg_ptr->maccfg2 = |
---|
| 1744 | ((sc->reg_ptr->maccfg2 & ~M83xx_TSEC_MACCFG2_IFMODE_MSK) |
---|
| 1745 | | M83xx_TSEC_MACCFG2_IFMODE_NIB); |
---|
| 1746 | } |
---|
| 1747 | /* |
---|
| 1748 | * if we are half duplex then switch to half duplex |
---|
| 1749 | */ |
---|
| 1750 | if (0 == (IFM_FDX & IFM_OPTIONS(media))) { |
---|
| 1751 | sc->reg_ptr->maccfg2 &= ~M83xx_TSEC_MACCFG2_FULLDUPLEX; |
---|
| 1752 | } |
---|
| 1753 | else { |
---|
| 1754 | sc->reg_ptr->maccfg2 |= M83xx_TSEC_MACCFG2_FULLDUPLEX; |
---|
| 1755 | } |
---|
| 1756 | /* |
---|
| 1757 | * store current media state for future compares |
---|
| 1758 | */ |
---|
| 1759 | sc->media_state = media; |
---|
| 1760 | |
---|
| 1761 | return 0; |
---|
| 1762 | } |
---|
| 1763 | |
---|
| 1764 | /*=========================================================================*\ |
---|
| 1765 | | Function: | |
---|
| 1766 | \*-------------------------------------------------------------------------*/ |
---|
| 1767 | static void mpc83xx_tsec_watchdog |
---|
| 1768 | ( |
---|
| 1769 | /*-------------------------------------------------------------------------*\ |
---|
| 1770 | | Purpose: | |
---|
| 1771 | | periodically poll the PHY. if mode has changed, | |
---|
| 1772 | | then adjust the TSEC settings | |
---|
| 1773 | +---------------------------------------------------------------------------+ |
---|
| 1774 | | Input Parameters: | |
---|
| 1775 | \*-------------------------------------------------------------------------*/ |
---|
| 1776 | struct ifnet *ifp |
---|
| 1777 | ) |
---|
| 1778 | /*-------------------------------------------------------------------------*\ |
---|
| 1779 | | Return Value: | |
---|
| 1780 | | 1, if success | |
---|
| 1781 | \*=========================================================================*/ |
---|
| 1782 | { |
---|
| 1783 | rtems_mpc83xx_tsec_mode_adapt(ifp); |
---|
| 1784 | ifp->if_timer = TSEC_WATCHDOG_TIMEOUT; |
---|
| 1785 | } |
---|
| 1786 | |
---|
| 1787 | /*=========================================================================*\ |
---|
| 1788 | | Function: | |
---|
| 1789 | \*-------------------------------------------------------------------------*/ |
---|
| 1790 | static int mpc83xx_tsec_driver_attach |
---|
| 1791 | ( |
---|
| 1792 | /*-------------------------------------------------------------------------*\ |
---|
| 1793 | | Purpose: | |
---|
| 1794 | | attach the driver | |
---|
| 1795 | +---------------------------------------------------------------------------+ |
---|
| 1796 | | Input Parameters: | |
---|
| 1797 | \*-------------------------------------------------------------------------*/ |
---|
| 1798 | struct rtems_bsdnet_ifconfig *config /* interface configuration */ |
---|
| 1799 | ) |
---|
| 1800 | /*-------------------------------------------------------------------------*\ |
---|
| 1801 | | Return Value: | |
---|
| 1802 | | zero, if success | |
---|
| 1803 | \*=========================================================================*/ |
---|
| 1804 | { |
---|
| 1805 | struct mpc83xx_tsec_struct *sc; |
---|
| 1806 | struct ifnet *ifp; |
---|
| 1807 | int unitNumber; |
---|
| 1808 | char *unitName; |
---|
| 1809 | |
---|
| 1810 | /* |
---|
| 1811 | * Parse driver name |
---|
| 1812 | */ |
---|
| 1813 | if((unitNumber = rtems_bsdnet_parse_driver_name(config, &unitName)) < 0) { |
---|
| 1814 | return 0; |
---|
| 1815 | } |
---|
| 1816 | |
---|
| 1817 | /* |
---|
| 1818 | * Is driver free? |
---|
| 1819 | */ |
---|
| 1820 | if ((unitNumber <= 0) || (unitNumber > M83xx_TSEC_NIFACES)) { |
---|
| 1821 | |
---|
| 1822 | printk ("Bad TSEC unit number.\n"); |
---|
| 1823 | return 0; |
---|
| 1824 | |
---|
| 1825 | } |
---|
| 1826 | |
---|
| 1827 | sc = &tsec_driver[unitNumber - 1]; |
---|
| 1828 | ifp = &sc->arpcom.ac_if; |
---|
| 1829 | /* |
---|
| 1830 | * add sc to config |
---|
| 1831 | */ |
---|
| 1832 | config->drv_ctrl = sc; |
---|
| 1833 | |
---|
| 1834 | if(ifp->if_softc != NULL) { |
---|
| 1835 | printk ("Driver already in use.\n"); |
---|
| 1836 | return 0; |
---|
| 1837 | } |
---|
| 1838 | |
---|
| 1839 | /* |
---|
| 1840 | * Process options |
---|
| 1841 | */ |
---|
| 1842 | if(config->hardware_address) { |
---|
| 1843 | memcpy(sc->arpcom.ac_enaddr, config->hardware_address, ETHER_ADDR_LEN); |
---|
| 1844 | } |
---|
| 1845 | else { |
---|
| 1846 | rtems_panic("TSEC: No Ethernet address specified!\n"); |
---|
| 1847 | } |
---|
| 1848 | |
---|
| 1849 | sc->rxBdCount = (config->rbuf_count > 0) ? config->rbuf_count : RX_BUF_COUNT; |
---|
| 1850 | sc->txBdCount = (config->xbuf_count > 0) ? config->xbuf_count : TX_BUF_COUNT; |
---|
| 1851 | sc->acceptBroadcast = !config->ignore_broadcast; |
---|
| 1852 | |
---|
| 1853 | /* get pointer to TSEC register block */ |
---|
| 1854 | sc->reg_ptr = &mpc83xx.tsec[unitNumber-1]; |
---|
| 1855 | /* get base interrupt number (for Tx irq, Rx=base+1,Err=base+2) */ |
---|
| 1856 | sc->irq_num_tx = config->irno + 0; /* tx irq number from BSP */ |
---|
| 1857 | sc->irq_num_rx = config->irno + 1; /* rx irq number from BSP */ |
---|
| 1858 | sc->irq_num_err = config->irno + 2; /* err irq number from BSP */ |
---|
| 1859 | if (config->irno == 0) { |
---|
| 1860 | rtems_panic("TSEC: interupt base number irno not defined"); |
---|
| 1861 | } |
---|
| 1862 | /* |
---|
| 1863 | * setup info about mdio interface |
---|
| 1864 | */ |
---|
| 1865 | sc->mdio_info.mdio_r = mpc83xx_tsec_mdio_read; |
---|
| 1866 | sc->mdio_info.mdio_w = mpc83xx_tsec_mdio_write; |
---|
| 1867 | sc->mdio_info.has_gmii = 1; /* we support gigabit IF */ |
---|
| 1868 | /* |
---|
| 1869 | * XXX: Although most hardware builders will assign the PHY addresses |
---|
| 1870 | * like this, this should be more configurable |
---|
| 1871 | */ |
---|
| 1872 | sc->phy_default = unitNumber-1; |
---|
| 1873 | /* |
---|
| 1874 | * Set up network interface values |
---|
| 1875 | */ |
---|
| 1876 | ifp->if_softc = sc; |
---|
| 1877 | ifp->if_unit = unitNumber; |
---|
| 1878 | ifp->if_name = unitName; |
---|
| 1879 | ifp->if_mtu = (config->mtu > 0) ? config->mtu : ETHERMTU; |
---|
| 1880 | ifp->if_init = mpc83xx_tsec_init; |
---|
| 1881 | ifp->if_ioctl = mpc83xx_tsec_ioctl; |
---|
| 1882 | ifp->if_start = mpc83xx_tsec_tx_start; |
---|
| 1883 | ifp->if_output = ether_output; |
---|
| 1884 | ifp->if_watchdog = mpc83xx_tsec_watchdog; /* XXX: timer is set in "init" */ |
---|
| 1885 | |
---|
| 1886 | ifp->if_flags = (config->ignore_broadcast) ? 0 : IFF_BROADCAST; |
---|
| 1887 | /*ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX;*/ |
---|
| 1888 | |
---|
| 1889 | if(ifp->if_snd.ifq_maxlen == 0) { |
---|
| 1890 | ifp->if_snd.ifq_maxlen = ifqmaxlen; |
---|
| 1891 | } |
---|
| 1892 | |
---|
| 1893 | /* |
---|
| 1894 | * Attach the interface |
---|
| 1895 | */ |
---|
| 1896 | if_attach(ifp); |
---|
| 1897 | |
---|
| 1898 | ether_ifattach(ifp); |
---|
| 1899 | |
---|
| 1900 | return 1; |
---|
| 1901 | } |
---|
| 1902 | |
---|
| 1903 | |
---|
| 1904 | /*=========================================================================*\ |
---|
| 1905 | | Function: | |
---|
| 1906 | \*-------------------------------------------------------------------------*/ |
---|
| 1907 | int rtems_mpc83xx_tsec_driver_attach_detach |
---|
| 1908 | ( |
---|
| 1909 | /*-------------------------------------------------------------------------*\ |
---|
| 1910 | | Purpose: | |
---|
| 1911 | | attach or detach the driver | |
---|
| 1912 | +---------------------------------------------------------------------------+ |
---|
| 1913 | | Input Parameters: | |
---|
| 1914 | \*-------------------------------------------------------------------------*/ |
---|
| 1915 | struct rtems_bsdnet_ifconfig *config, /* interface configuration */ |
---|
| 1916 | int attaching /* 0 = detach, else attach */ |
---|
| 1917 | ) |
---|
| 1918 | /*-------------------------------------------------------------------------*\ |
---|
| 1919 | | Return Value: | |
---|
| 1920 | | 1, if success | |
---|
| 1921 | \*=========================================================================*/ |
---|
| 1922 | { |
---|
| 1923 | if (attaching) { |
---|
| 1924 | return mpc83xx_tsec_driver_attach(config); |
---|
| 1925 | } |
---|
| 1926 | else { |
---|
| 1927 | return 0; |
---|
| 1928 | } |
---|
| 1929 | } |
---|
| 1930 | |
---|