* Authors:
* - Rostislav Lisový
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ * This document contains proprietary information belonging to Czech
+ * Technical University in Prague. Passing on and copying of this
+ * document, and communication of its contents is not permitted
+ * without prior written authorization.
*
* File : cmd_emac.c
*
/* Emac frame buffer related stuff */
/* ************************************************* */
typedef struct _EMAC_Desc {
- struct _EMAC_Desc *pNext; /* Pointer to next descriptor in chain */
- uint8_t *pBuffer; /* Pointer to data buffer */
- uint32_t BufOffLen; /* Buffer Offset(MSW) and Length(LSW) */
- uint32_t PktFlgLen; /* Packet Flags(MSW) and Length(LSW) */
+ struct _EMAC_Desc *pNext; /* Pointer to next descriptor in chain */
+ uint8_t *pBuffer; /* Pointer to data buffer */
+ uint32_t BufOffLen; /* Buffer Offset(MSW) and Length(LSW) */
+ uint32_t PktFlgLen; /* Packet Flags(MSW) and Length(LSW) */
} EMAC_Desc;
/* Packet Flags */
-#define EMAC_DSC_FLAG_SOP 0x80000000u
-#define EMAC_DSC_FLAG_EOP 0x40000000u
-#define EMAC_DSC_FLAG_OWNER 0x20000000u
-#define EMAC_DSC_FLAG_EOQ 0x10000000u
-#define EMAC_DSC_FLAG_TDOWNCMPLT 0x08000000u
-#define EMAC_DSC_FLAG_PASSCRC 0x04000000u
+#define EMAC_DSC_FLAG_SOP 0x80000000u
+#define EMAC_DSC_FLAG_EOP 0x40000000u
+#define EMAC_DSC_FLAG_OWNER 0x20000000u
+#define EMAC_DSC_FLAG_EOQ 0x10000000u
+#define EMAC_DSC_FLAG_TDOWNCMPLT 0x08000000u
+#define EMAC_DSC_FLAG_PASSCRC 0x04000000u
/* ************************************************* */
/* Ethernet frame */
/* ************************************************* */
typedef struct {
- uint8_t destination[6];
- uint8_t source[6];
+ uint8_t destination[6];
+ uint8_t source[6];
uint16_t len;
- uint8_t data[50];
+ uint8_t data[50];
uint32_t fcs;
} eth_frame_t;
-unsigned int emacCtrlBase = EMAC_CTRL_BASE;
-unsigned int emacBase = EMAC_BASE;
-unsigned int emacCtrlRamBase = EMAC_CTRL_RAM_BASE;
-unsigned int mdioBase = MDIO_BASE;
+unsigned int emacCtrlBase = EMAC_CTRL_BASE;
+unsigned int emacBase = EMAC_BASE;
+unsigned int emacCtrlRamBase = EMAC_CTRL_RAM_BASE;
+unsigned int mdioBase = MDIO_BASE;
int rx_irq_cnt; /* Interrupt counters */
int tx_irq_cnt;
unsigned int intvect;
unsigned int intvectraw;
-uint8_t emacAddress[6] = {0x12, 0x34, 0x56, 0x78, 0x90, 0xab};
-uint32_t emacPhyAddress = 0x1; /* Address of PHY on "MDIO bus"
- (depends on PHY configuration) */
-int channel = 0; /* Emac has 8 RX and TX channels; we use only one */
+uint8_t emacAddress[6] = {0x12, 0x34, 0x56, 0x78, 0x90, 0xab};
+uint32_t emacPhyAddress = 0x1; /* Address of PHY on "MDIO bus"
+ (depends on PHY configuration) */
+int channel = 0; /* Emac has 8 RX and TX channels; we use only one */
-EMAC_Desc fr1 __attribute__((aligned(4))); /* Frame descriptor of Ethernet frame to be sent */
+EMAC_Desc fr1 __attribute__((aligned(4))); /* Frame descriptor of Ethernet frame to be sent */
/* Frame descriptor used for receiving frames --
it might be placed in normal RAM or in CPPI ram of EMAC */
//EMAC_Desc rx_desc __attribute__((aligned(4)));
-volatile EMAC_Desc *rx_desc = ((EMAC_Desc*) EMAC_CTRL_RAM_BASE);
+volatile EMAC_Desc *rx_desc = ((EMAC_Desc *)EMAC_CTRL_RAM_BASE);
-#define BUFF_SIZE 2048
+#define BUFF_SIZE 2048
uint8_t rx_buff[BUFF_SIZE]; /* Buffer for data reception */
-eth_frame_t efr1; /* Buffer for TX -- Before sending some data we have to
- prepare it in "Ethernet frame" format */
+eth_frame_t efr1; /* Buffer for TX -- Before sending some data we have to
+ prepare it in "Ethernet frame" format */
void dummy_wait()
{
volatile int i;
- for (i = 0; i < 65555; i ++)
+ for (i = 0; i < 65555; i++)
;
}
unsigned short data;
int j;
+#ifdef TARGET_TMS570_RPP
/* Deactivate reset pin of PHY */
dmmREG->PC4 = (1 << DMM_CLK); /* Set to H */
dummy_wait();
dummy_wait();
dmmREG->PC4 = (1 << DMM_CLK); /* Set to H */
dummy_wait();
+#endif
/* Prepare RX Packet buffer descriptor */
rx_desc->pBuffer = rx_buff;
EMACInit(emacCtrlBase, emacBase);
MDIOInit(mdioBase, 0x0, 0x0);
- dummy_wait(); // FIXME
+ dummy_wait(); // FIXME
EMACMACSrcAddrSet(emacBase, emacAddress);
/* Be sure to program all eight MAC address registers -
if (data & PHY_100BASETXDUPL_m) {
EMACDuplexSet(emacBase, EMAC_DUPLEX_FULL);
dummy_wait();
- } else if (data & PHY_100BASETX_m) {
+ }
+ else if (data & PHY_100BASETX_m) {
EMACDuplexSet(emacBase, EMAC_DUPLEX_HALF);
dummy_wait();
- } else {
- while(1)
- ;
}
+ else
+ while (1)
+ ;
for (chan = 0; chan < 8; chan++) {
EMACTxHdrDescPtrWrite(emacBase, 0, chan);
/* TX */
for (j = 0; j < 8; j++) {
fr1.pNext = NULL;
- fr1.pBuffer = (uint8_t*)&efr1;
+ fr1.pBuffer = (uint8_t *)&efr1;
fr1.BufOffLen = 65;
fr1.PktFlgLen = (EMAC_DSC_FLAG_SOP | EMAC_DSC_FLAG_EOP | EMAC_DSC_FLAG_OWNER | 65);
EMACTxHdrDescPtrWrite(emacBase, (unsigned int)&fr1, channel);
rpp_sci_printf("Packet sent\r\n");
- while(fr1.PktFlgLen == EMAC_DSC_FLAG_OWNER){
- if(rpp_sci_read_nb(1, &input) == SUCCESS){
+ while (fr1.PktFlgLen == EMAC_DSC_FLAG_OWNER)
+ if (rpp_sci_read_nb(1, &input) == SUCCESS)
return -1;
- }
- }
dummy_wait();
intvect = EMACIntVectorGet(emacBase);
intvectraw = EMACIntVectorRawGet(emacBase);
for (j = 0; j < 8; j++) {
while (!(rx_desc->PktFlgLen & EMAC_DSC_FLAG_SOP))
- if(rpp_sci_read_nb(1, &input) == SUCCESS){
+ if (rpp_sci_read_nb(1, &input) == SUCCESS)
return -1;
- }
- ;
+
+ ;
rpp_sci_printf("Received packet:\r\n");
rpp_sci_printf("Length: %d\r\n", rx_desc->PktFlgLen & 0xffff);
return 0;
}
-#endif /* DOCGEN */
-
-cmd_des_t const cmd_des_test_ethernet={
- 0, 0,
- "ethernet", "Temporary command to test Ethernet communication",
- "### Command syntax ###\n"
- "\n"
- " ethernet\n"
- "\n"
- "### Description ###\n"
- "\n"
- "Command tries to send a few ethernet frames. No real connection or\n"
- "meaningful packets are sent. This only tests, if Ethernet is just\n"
- "working.\n",
- CMD_HANDLER(emac_test), (void *)&cmd_list_emac
+#endif /* DOCGEN */
+
+cmd_des_t const cmd_des_test_ethernet = {
+ 0, 0,
+ "ethernet", "Temporary command to test Ethernet communication",
+ "### Command syntax ###\n"
+ "\n"
+ " ethernet\n"
+ "\n"
+ "### Description ###\n"
+ "\n"
+ "Command tries to send a few ethernet frames. No real connection or\n"
+ "meaningful packets are sent. This only tests, if Ethernet is just\n"
+ "working.\n",
+ CMD_HANDLER(emac_test), (void *)&cmd_list_emac
};
-cmd_des_t const *cmd_list_emac[]={
- &cmd_des_test_ethernet,
- NULL
+cmd_des_t const *cmd_list_emac[] = {
+ &cmd_des_test_ethernet,
+ NULL
};
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