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Diffstat (limited to 'cpu/arm926ejs/davinci/ether.c')
-rw-r--r--cpu/arm926ejs/davinci/ether.c99
1 files changed, 51 insertions, 48 deletions
diff --git a/cpu/arm926ejs/davinci/ether.c b/cpu/arm926ejs/davinci/ether.c
index 766bc7d..d286ec0 100644
--- a/cpu/arm926ejs/davinci/ether.c
+++ b/cpu/arm926ejs/davinci/ether.c
@@ -489,7 +489,7 @@ static void dm644x_eth_ch_teardown(int ch)
dly--;
udelay(1);
if (dly == 0)
- break;
+ break;
}
adap_emac->TX0CP = cnt;
adap_emac->TX0HDP = 0;
@@ -504,7 +504,7 @@ static void dm644x_eth_ch_teardown(int ch)
dly--;
udelay(1);
if (dly == 0)
- break;
+ break;
}
adap_emac->RX0CP = cnt;
adap_emac->RX0HDP = 0;
@@ -535,83 +535,85 @@ static int tx_send_loop = 0;
* This function sends a single packet on the network and returns
* positive number (number of bytes transmitted) or negative for error
*/
-static int dm644x_eth_send_packet(volatile void *packet, int length)
+static int dm644x_eth_send_packet (volatile void *packet, int length)
{
int ret_status = -1;
+
tx_send_loop = 0;
/* Return error if no link */
- if (!phy.get_link_speed(active_phy_addr))
- {
- printf("WARN: emac_send_packet: No link\n");
+ if (!phy.get_link_speed (active_phy_addr)) {
+ printf ("WARN: emac_send_packet: No link\n");
return (ret_status);
}
/* Check packet size and if < EMAC_MIN_ETHERNET_PKT_SIZE, pad it up */
- if (length < EMAC_MIN_ETHERNET_PKT_SIZE)
- {
+ if (length < EMAC_MIN_ETHERNET_PKT_SIZE) {
length = EMAC_MIN_ETHERNET_PKT_SIZE;
}
/* Populate the TX descriptor */
- emac_tx_desc->next = 0;
- emac_tx_desc->buffer = (u_int8_t *)packet;
+ emac_tx_desc->next = 0;
+ emac_tx_desc->buffer = (u_int8_t *) packet;
emac_tx_desc->buff_off_len = (length & 0xffff);
emac_tx_desc->pkt_flag_len = ((length & 0xffff) |
- EMAC_CPPI_SOP_BIT |
- EMAC_CPPI_OWNERSHIP_BIT |
- EMAC_CPPI_EOP_BIT);
+ EMAC_CPPI_SOP_BIT |
+ EMAC_CPPI_OWNERSHIP_BIT |
+ EMAC_CPPI_EOP_BIT);
/* Send the packet */
- adap_emac->TX0HDP = (unsigned int)emac_tx_desc;
+ adap_emac->TX0HDP = (unsigned int) emac_tx_desc;
/* Wait for packet to complete or link down */
while (1) {
- if (!phy.get_link_speed(active_phy_addr)) {
- dm644x_eth_ch_teardown(EMAC_CH_TX);
- return (ret_status);
- }
- if (adap_emac->TXINTSTATRAW & 0x01) {
- ret_status = length;
- break;
+ if (!phy.get_link_speed (active_phy_addr)) {
+ dm644x_eth_ch_teardown (EMAC_CH_TX);
+ return (ret_status);
+ }
+ if (adap_emac->TXINTSTATRAW & 0x01) {
+ ret_status = length;
+ break;
}
- tx_send_loop++;
+ tx_send_loop++;
}
- return(ret_status);
+ return (ret_status);
}
/*
* This function handles receipt of a packet from the network
*/
-static int dm644x_eth_rcv_packet(void)
+static int dm644x_eth_rcv_packet (void)
{
- volatile emac_desc *rx_curr_desc;
- volatile emac_desc *curr_desc;
- volatile emac_desc *tail_desc;
- int status, ret = -1;
+ volatile emac_desc *rx_curr_desc;
+ volatile emac_desc *curr_desc;
+ volatile emac_desc *tail_desc;
+ int status, ret = -1;
rx_curr_desc = emac_rx_active_head;
status = rx_curr_desc->pkt_flag_len;
if ((rx_curr_desc) && ((status & EMAC_CPPI_OWNERSHIP_BIT) == 0)) {
- if (status & EMAC_CPPI_RX_ERROR_FRAME) {
- /* Error in packet - discard it and requeue desc */
- printf("WARN: emac_rcv_pkt: Error in packet\n");
+ if (status & EMAC_CPPI_RX_ERROR_FRAME) {
+ /* Error in packet - discard it and requeue desc */
+ printf ("WARN: emac_rcv_pkt: Error in packet\n");
} else {
- NetReceive(rx_curr_desc->buffer, (rx_curr_desc->buff_off_len & 0xffff));
+ NetReceive (rx_curr_desc->buffer,
+ (rx_curr_desc->buff_off_len & 0xffff));
ret = rx_curr_desc->buff_off_len & 0xffff;
- }
+ }
- /* Ack received packet descriptor */
- adap_emac->RX0CP = (unsigned int)rx_curr_desc;
- curr_desc = rx_curr_desc;
- emac_rx_active_head = (volatile emac_desc *)rx_curr_desc->next;
+ /* Ack received packet descriptor */
+ adap_emac->RX0CP = (unsigned int) rx_curr_desc;
+ curr_desc = rx_curr_desc;
+ emac_rx_active_head =
+ (volatile emac_desc *) rx_curr_desc->next;
- if (status & EMAC_CPPI_EOQ_BIT) {
- if (emac_rx_active_head) {
- adap_emac->RX0HDP = (unsigned int)emac_rx_active_head;
+ if (status & EMAC_CPPI_EOQ_BIT) {
+ if (emac_rx_active_head) {
+ adap_emac->RX0HDP =
+ (unsigned int) emac_rx_active_head;
} else {
emac_rx_queue_active = 0;
- printf("INFO:emac_rcv_packet: RX Queue not active\n");
+ printf ("INFO:emac_rcv_packet: RX Queue not active\n");
}
}
@@ -621,28 +623,29 @@ static int dm644x_eth_rcv_packet(void)
rx_curr_desc->next = 0;
if (emac_rx_active_head == 0) {
- printf("INFO: emac_rcv_pkt: active queue head = 0\n");
+ printf ("INFO: emac_rcv_pkt: active queue head = 0\n");
emac_rx_active_head = curr_desc;
emac_rx_active_tail = curr_desc;
if (emac_rx_queue_active != 0) {
- adap_emac->RX0HDP = (unsigned int)emac_rx_active_head;
- printf("INFO: emac_rcv_pkt: active queue head = 0, HDP fired\n");
+ adap_emac->RX0HDP =
+ (unsigned int) emac_rx_active_head;
+ printf ("INFO: emac_rcv_pkt: active queue head = 0, HDP fired\n");
emac_rx_queue_active = 1;
}
} else {
tail_desc = emac_rx_active_tail;
emac_rx_active_tail = curr_desc;
- tail_desc->next = (unsigned int)curr_desc;
+ tail_desc->next = (unsigned int) curr_desc;
status = tail_desc->pkt_flag_len;
if (status & EMAC_CPPI_EOQ_BIT) {
- adap_emac->RX0HDP = (unsigned int)curr_desc;
+ adap_emac->RX0HDP = (unsigned int) curr_desc;
status &= ~EMAC_CPPI_EOQ_BIT;
tail_desc->pkt_flag_len = status;
}
}
- return(ret);
+ return (ret);
}
- return(0);
+ return (0);
}
#endif /* CONFIG_CMD_NET */
generated by cgit v1.1 at 2024-11-01 21:49:41 +0000