11802d0beSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
29c54004eSDavid Woodhouse /*
39c54004eSDavid Woodhouse * Driver for the Solos PCI ADSL2+ card, designed to support Linux by
4ed757328SAlexander A. Klimov * Traverse Technologies -- https://www.traverse.com.au/
59c54004eSDavid Woodhouse * Xrio Limited -- http://www.xrio.com/
69c54004eSDavid Woodhouse *
79c54004eSDavid Woodhouse * Copyright © 2008 Traverse Technologies
89c54004eSDavid Woodhouse * Copyright © 2008 Intel Corporation
99c54004eSDavid Woodhouse *
109c54004eSDavid Woodhouse * Authors: Nathan Williams <nathan@traverse.com.au>
119c54004eSDavid Woodhouse * David Woodhouse <dwmw2@infradead.org>
127c4015bdSSimon Farnsworth * Treker Chen <treker@xrio.com>
139c54004eSDavid Woodhouse */
149c54004eSDavid Woodhouse
159c54004eSDavid Woodhouse #define DEBUG
169c54004eSDavid Woodhouse #define VERBOSE_DEBUG
179c54004eSDavid Woodhouse
189c54004eSDavid Woodhouse #include <linux/interrupt.h>
199c54004eSDavid Woodhouse #include <linux/module.h>
209c54004eSDavid Woodhouse #include <linux/kernel.h>
219c54004eSDavid Woodhouse #include <linux/errno.h>
229c54004eSDavid Woodhouse #include <linux/ioport.h>
239c54004eSDavid Woodhouse #include <linux/types.h>
249c54004eSDavid Woodhouse #include <linux/pci.h>
259c54004eSDavid Woodhouse #include <linux/atm.h>
269c54004eSDavid Woodhouse #include <linux/atmdev.h>
279c54004eSDavid Woodhouse #include <linux/skbuff.h>
289c54004eSDavid Woodhouse #include <linux/sysfs.h>
299c54004eSDavid Woodhouse #include <linux/device.h>
309c54004eSDavid Woodhouse #include <linux/kobject.h>
317c4015bdSSimon Farnsworth #include <linux/firmware.h>
3201e2ffacSDavid Woodhouse #include <linux/ctype.h>
3301e2ffacSDavid Woodhouse #include <linux/swab.h>
345a0e3ad6STejun Heo #include <linux/slab.h>
359c54004eSDavid Woodhouse
3613af8164SNathan Williams #define VERSION "1.04"
3713af8164SNathan Williams #define DRIVER_VERSION 0x01
389c54004eSDavid Woodhouse #define PTAG "solos-pci"
399c54004eSDavid Woodhouse
409c54004eSDavid Woodhouse #define CONFIG_RAM_SIZE 128
419c54004eSDavid Woodhouse #define FLAGS_ADDR 0x7C
429c54004eSDavid Woodhouse #define IRQ_EN_ADDR 0x78
439c54004eSDavid Woodhouse #define FPGA_VER 0x74
449c54004eSDavid Woodhouse #define IRQ_CLEAR 0x70
457c4015bdSSimon Farnsworth #define WRITE_FLASH 0x6C
467c4015bdSSimon Farnsworth #define PORTS 0x68
477c4015bdSSimon Farnsworth #define FLASH_BLOCK 0x64
487c4015bdSSimon Farnsworth #define FLASH_BUSY 0x60
497c4015bdSSimon Farnsworth #define FPGA_MODE 0x5C
507c4015bdSSimon Farnsworth #define FLASH_MODE 0x58
51f9baad02SNathan Williams #define GPIO_STATUS 0x54
5213af8164SNathan Williams #define DRIVER_VER 0x50
5390937231SDavid Woodhouse #define TX_DMA_ADDR(port) (0x40 + (4 * (port)))
5490937231SDavid Woodhouse #define RX_DMA_ADDR(port) (0x30 + (4 * (port)))
559c54004eSDavid Woodhouse
569c54004eSDavid Woodhouse #define DATA_RAM_SIZE 32768
574dbedf43SNathan Williams #define BUF_SIZE 2048
584dbedf43SNathan Williams #define OLD_BUF_SIZE 4096 /* For FPGA versions <= 2*/
5913af8164SNathan Williams /* Old boards use ATMEL AD45DB161D flash */
6013af8164SNathan Williams #define ATMEL_FPGA_PAGE 528 /* FPGA flash page size*/
6113af8164SNathan Williams #define ATMEL_SOLOS_PAGE 512 /* Solos flash page size*/
6213af8164SNathan Williams #define ATMEL_FPGA_BLOCK (ATMEL_FPGA_PAGE * 8) /* FPGA block size*/
6313af8164SNathan Williams #define ATMEL_SOLOS_BLOCK (ATMEL_SOLOS_PAGE * 8) /* Solos block size*/
6413af8164SNathan Williams /* Current boards use M25P/M25PE SPI flash */
6513af8164SNathan Williams #define SPI_FLASH_BLOCK (256 * 64)
669c54004eSDavid Woodhouse
674dbedf43SNathan Williams #define RX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2)
684dbedf43SNathan Williams #define TX_BUF(card, nr) ((card->buffers) + (nr)*(card->buffer_size)*2 + (card->buffer_size))
694dbedf43SNathan Williams #define FLASH_BUF ((card->buffers) + 4*(card->buffer_size)*2)
709c54004eSDavid Woodhouse
71eaf83e39SDavid Woodhouse #define RX_DMA_SIZE 2048
72eaf83e39SDavid Woodhouse
734dbedf43SNathan Williams #define FPGA_VERSION(a,b) (((a) << 8) + (b))
744dbedf43SNathan Williams #define LEGACY_BUFFERS 2
754dbedf43SNathan Williams #define DMA_SUPPORTED 4
764dbedf43SNathan Williams
77cc3657e1SDavid Woodhouse static int reset = 0;
789c54004eSDavid Woodhouse static int atmdebug = 0;
797c4015bdSSimon Farnsworth static int firmware_upgrade = 0;
807c4015bdSSimon Farnsworth static int fpga_upgrade = 0;
814dbedf43SNathan Williams static int db_firmware_upgrade = 0;
824dbedf43SNathan Williams static int db_fpga_upgrade = 0;
839c54004eSDavid Woodhouse
849c54004eSDavid Woodhouse struct pkt_hdr {
859c54004eSDavid Woodhouse __le16 size;
869c54004eSDavid Woodhouse __le16 vpi;
879c54004eSDavid Woodhouse __le16 vci;
889c54004eSDavid Woodhouse __le16 type;
899c54004eSDavid Woodhouse };
909c54004eSDavid Woodhouse
9190937231SDavid Woodhouse struct solos_skb_cb {
9290937231SDavid Woodhouse struct atm_vcc *vcc;
9390937231SDavid Woodhouse uint32_t dma_addr;
9490937231SDavid Woodhouse };
9590937231SDavid Woodhouse
9690937231SDavid Woodhouse
9790937231SDavid Woodhouse #define SKB_CB(skb) ((struct solos_skb_cb *)skb->cb)
9890937231SDavid Woodhouse
999c54004eSDavid Woodhouse #define PKT_DATA 0
1009c54004eSDavid Woodhouse #define PKT_COMMAND 1
1019c54004eSDavid Woodhouse #define PKT_POPEN 3
1029c54004eSDavid Woodhouse #define PKT_PCLOSE 4
10387ebb186SDavid Woodhouse #define PKT_STATUS 5
1049c54004eSDavid Woodhouse
1059c54004eSDavid Woodhouse struct solos_card {
1069c54004eSDavid Woodhouse void __iomem *config_regs;
1079c54004eSDavid Woodhouse void __iomem *buffers;
1089c54004eSDavid Woodhouse int nr_ports;
109f69e4170SDavid Woodhouse int tx_mask;
1109c54004eSDavid Woodhouse struct pci_dev *dev;
1119c54004eSDavid Woodhouse struct atm_dev *atmdev[4];
1129c54004eSDavid Woodhouse struct tasklet_struct tlet;
1139c54004eSDavid Woodhouse spinlock_t tx_lock;
1149c54004eSDavid Woodhouse spinlock_t tx_queue_lock;
1159c54004eSDavid Woodhouse spinlock_t cli_queue_lock;
11601e2ffacSDavid Woodhouse spinlock_t param_queue_lock;
11701e2ffacSDavid Woodhouse struct list_head param_queue;
1189c54004eSDavid Woodhouse struct sk_buff_head tx_queue[4];
1199c54004eSDavid Woodhouse struct sk_buff_head cli_queue[4];
12090937231SDavid Woodhouse struct sk_buff *tx_skb[4];
12190937231SDavid Woodhouse struct sk_buff *rx_skb[4];
122152a2a8bSDavid Woodhouse unsigned char *dma_bounce;
12301e2ffacSDavid Woodhouse wait_queue_head_t param_wq;
124fa755b9fSDavid Woodhouse wait_queue_head_t fw_wq;
12590937231SDavid Woodhouse int using_dma;
126152a2a8bSDavid Woodhouse int dma_alignment;
1274dbedf43SNathan Williams int fpga_version;
1284dbedf43SNathan Williams int buffer_size;
12913af8164SNathan Williams int atmel_flash;
1309c54004eSDavid Woodhouse };
1319c54004eSDavid Woodhouse
13201e2ffacSDavid Woodhouse
13301e2ffacSDavid Woodhouse struct solos_param {
13401e2ffacSDavid Woodhouse struct list_head list;
13501e2ffacSDavid Woodhouse pid_t pid;
13601e2ffacSDavid Woodhouse int port;
13701e2ffacSDavid Woodhouse struct sk_buff *response;
1389c54004eSDavid Woodhouse };
1399c54004eSDavid Woodhouse
1409c54004eSDavid Woodhouse #define SOLOS_CHAN(atmdev) ((int)(unsigned long)(atmdev)->phy_data)
1419c54004eSDavid Woodhouse
1429c54004eSDavid Woodhouse MODULE_AUTHOR("Traverse Technologies <support@traverse.com.au>");
1439c54004eSDavid Woodhouse MODULE_DESCRIPTION("Solos PCI driver");
1449c54004eSDavid Woodhouse MODULE_VERSION(VERSION);
1459c54004eSDavid Woodhouse MODULE_LICENSE("GPL");
1469fca79d6SBen Hutchings MODULE_FIRMWARE("solos-FPGA.bin");
1479fca79d6SBen Hutchings MODULE_FIRMWARE("solos-Firmware.bin");
1489fca79d6SBen Hutchings MODULE_FIRMWARE("solos-db-FPGA.bin");
149cc3657e1SDavid Woodhouse MODULE_PARM_DESC(reset, "Reset Solos chips on startup");
1509c54004eSDavid Woodhouse MODULE_PARM_DESC(atmdebug, "Print ATM data");
1517c4015bdSSimon Farnsworth MODULE_PARM_DESC(firmware_upgrade, "Initiate Solos firmware upgrade");
1527c4015bdSSimon Farnsworth MODULE_PARM_DESC(fpga_upgrade, "Initiate FPGA upgrade");
1534dbedf43SNathan Williams MODULE_PARM_DESC(db_firmware_upgrade, "Initiate daughter board Solos firmware upgrade");
1544dbedf43SNathan Williams MODULE_PARM_DESC(db_fpga_upgrade, "Initiate daughter board FPGA upgrade");
155cc3657e1SDavid Woodhouse module_param(reset, int, 0444);
1564306cad6SSimon Farnsworth module_param(atmdebug, int, 0644);
1577c4015bdSSimon Farnsworth module_param(firmware_upgrade, int, 0444);
1587c4015bdSSimon Farnsworth module_param(fpga_upgrade, int, 0444);
1594dbedf43SNathan Williams module_param(db_firmware_upgrade, int, 0444);
1604dbedf43SNathan Williams module_param(db_fpga_upgrade, int, 0444);
1619c54004eSDavid Woodhouse
1629c54004eSDavid Woodhouse static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
1639c54004eSDavid Woodhouse struct atm_vcc *vcc);
16435c2221bSDavid Woodhouse static uint32_t fpga_tx(struct solos_card *);
1659c54004eSDavid Woodhouse static irqreturn_t solos_irq(int irq, void *dev_id);
1669c54004eSDavid Woodhouse static struct atm_vcc* find_vcc(struct atm_dev *dev, short vpi, int vci);
167d9ca676bSDan Williams static int atm_init(struct solos_card *, struct device *);
1689c54004eSDavid Woodhouse static void atm_remove(struct solos_card *);
1699c54004eSDavid Woodhouse static int send_command(struct solos_card *card, int dev, const char *buf, size_t size);
1709c54004eSDavid Woodhouse static void solos_bh(unsigned long);
1719c54004eSDavid Woodhouse static int print_buffer(struct sk_buff *buf);
1729c54004eSDavid Woodhouse
solos_pop(struct atm_vcc * vcc,struct sk_buff * skb)1739c54004eSDavid Woodhouse static inline void solos_pop(struct atm_vcc *vcc, struct sk_buff *skb)
1749c54004eSDavid Woodhouse {
1759c54004eSDavid Woodhouse if (vcc->pop)
1769c54004eSDavid Woodhouse vcc->pop(vcc, skb);
1779c54004eSDavid Woodhouse else
1789c54004eSDavid Woodhouse dev_kfree_skb_any(skb);
1799c54004eSDavid Woodhouse }
1809c54004eSDavid Woodhouse
solos_param_show(struct device * dev,struct device_attribute * attr,char * buf)18101e2ffacSDavid Woodhouse static ssize_t solos_param_show(struct device *dev, struct device_attribute *attr,
18201e2ffacSDavid Woodhouse char *buf)
18301e2ffacSDavid Woodhouse {
18401e2ffacSDavid Woodhouse struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
18501e2ffacSDavid Woodhouse struct solos_card *card = atmdev->dev_data;
18601e2ffacSDavid Woodhouse struct solos_param prm;
18701e2ffacSDavid Woodhouse struct sk_buff *skb;
18801e2ffacSDavid Woodhouse struct pkt_hdr *header;
18901e2ffacSDavid Woodhouse int buflen;
19001e2ffacSDavid Woodhouse
19101e2ffacSDavid Woodhouse buflen = strlen(attr->attr.name) + 10;
19201e2ffacSDavid Woodhouse
1933456b221SDavid Woodhouse skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL);
19401e2ffacSDavid Woodhouse if (!skb) {
19501e2ffacSDavid Woodhouse dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_show()\n");
19601e2ffacSDavid Woodhouse return -ENOMEM;
19701e2ffacSDavid Woodhouse }
19801e2ffacSDavid Woodhouse
1994df864c1SJohannes Berg header = skb_put(skb, sizeof(*header));
20001e2ffacSDavid Woodhouse
20101e2ffacSDavid Woodhouse buflen = snprintf((void *)&header[1], buflen - 1,
20201e2ffacSDavid Woodhouse "L%05d\n%s\n", current->pid, attr->attr.name);
20301e2ffacSDavid Woodhouse skb_put(skb, buflen);
20401e2ffacSDavid Woodhouse
20501e2ffacSDavid Woodhouse header->size = cpu_to_le16(buflen);
20601e2ffacSDavid Woodhouse header->vpi = cpu_to_le16(0);
20701e2ffacSDavid Woodhouse header->vci = cpu_to_le16(0);
20801e2ffacSDavid Woodhouse header->type = cpu_to_le16(PKT_COMMAND);
20901e2ffacSDavid Woodhouse
21001e2ffacSDavid Woodhouse prm.pid = current->pid;
21101e2ffacSDavid Woodhouse prm.response = NULL;
21201e2ffacSDavid Woodhouse prm.port = SOLOS_CHAN(atmdev);
21301e2ffacSDavid Woodhouse
21401e2ffacSDavid Woodhouse spin_lock_irq(&card->param_queue_lock);
21501e2ffacSDavid Woodhouse list_add(&prm.list, &card->param_queue);
21601e2ffacSDavid Woodhouse spin_unlock_irq(&card->param_queue_lock);
21701e2ffacSDavid Woodhouse
21801e2ffacSDavid Woodhouse fpga_queue(card, prm.port, skb, NULL);
21901e2ffacSDavid Woodhouse
22001e2ffacSDavid Woodhouse wait_event_timeout(card->param_wq, prm.response, 5 * HZ);
22101e2ffacSDavid Woodhouse
22201e2ffacSDavid Woodhouse spin_lock_irq(&card->param_queue_lock);
22301e2ffacSDavid Woodhouse list_del(&prm.list);
22401e2ffacSDavid Woodhouse spin_unlock_irq(&card->param_queue_lock);
22501e2ffacSDavid Woodhouse
22601e2ffacSDavid Woodhouse if (!prm.response)
22701e2ffacSDavid Woodhouse return -EIO;
22801e2ffacSDavid Woodhouse
22901e2ffacSDavid Woodhouse buflen = prm.response->len;
23001e2ffacSDavid Woodhouse memcpy(buf, prm.response->data, buflen);
23101e2ffacSDavid Woodhouse kfree_skb(prm.response);
23201e2ffacSDavid Woodhouse
23301e2ffacSDavid Woodhouse return buflen;
23401e2ffacSDavid Woodhouse }
23501e2ffacSDavid Woodhouse
solos_param_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)23601e2ffacSDavid Woodhouse static ssize_t solos_param_store(struct device *dev, struct device_attribute *attr,
23701e2ffacSDavid Woodhouse const char *buf, size_t count)
23801e2ffacSDavid Woodhouse {
23901e2ffacSDavid Woodhouse struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
24001e2ffacSDavid Woodhouse struct solos_card *card = atmdev->dev_data;
24101e2ffacSDavid Woodhouse struct solos_param prm;
24201e2ffacSDavid Woodhouse struct sk_buff *skb;
24301e2ffacSDavid Woodhouse struct pkt_hdr *header;
24401e2ffacSDavid Woodhouse int buflen;
24501e2ffacSDavid Woodhouse ssize_t ret;
24601e2ffacSDavid Woodhouse
24701e2ffacSDavid Woodhouse buflen = strlen(attr->attr.name) + 11 + count;
24801e2ffacSDavid Woodhouse
2493456b221SDavid Woodhouse skb = alloc_skb(sizeof(*header) + buflen, GFP_KERNEL);
25001e2ffacSDavid Woodhouse if (!skb) {
25101e2ffacSDavid Woodhouse dev_warn(&card->dev->dev, "Failed to allocate sk_buff in solos_param_store()\n");
25201e2ffacSDavid Woodhouse return -ENOMEM;
25301e2ffacSDavid Woodhouse }
25401e2ffacSDavid Woodhouse
2554df864c1SJohannes Berg header = skb_put(skb, sizeof(*header));
25601e2ffacSDavid Woodhouse
25701e2ffacSDavid Woodhouse buflen = snprintf((void *)&header[1], buflen - 1,
25801e2ffacSDavid Woodhouse "L%05d\n%s\n%s\n", current->pid, attr->attr.name, buf);
25901e2ffacSDavid Woodhouse
26001e2ffacSDavid Woodhouse skb_put(skb, buflen);
26101e2ffacSDavid Woodhouse header->size = cpu_to_le16(buflen);
26201e2ffacSDavid Woodhouse header->vpi = cpu_to_le16(0);
26301e2ffacSDavid Woodhouse header->vci = cpu_to_le16(0);
26401e2ffacSDavid Woodhouse header->type = cpu_to_le16(PKT_COMMAND);
26501e2ffacSDavid Woodhouse
26601e2ffacSDavid Woodhouse prm.pid = current->pid;
26701e2ffacSDavid Woodhouse prm.response = NULL;
26801e2ffacSDavid Woodhouse prm.port = SOLOS_CHAN(atmdev);
26901e2ffacSDavid Woodhouse
27001e2ffacSDavid Woodhouse spin_lock_irq(&card->param_queue_lock);
27101e2ffacSDavid Woodhouse list_add(&prm.list, &card->param_queue);
27201e2ffacSDavid Woodhouse spin_unlock_irq(&card->param_queue_lock);
27301e2ffacSDavid Woodhouse
27401e2ffacSDavid Woodhouse fpga_queue(card, prm.port, skb, NULL);
27501e2ffacSDavid Woodhouse
27601e2ffacSDavid Woodhouse wait_event_timeout(card->param_wq, prm.response, 5 * HZ);
27701e2ffacSDavid Woodhouse
27801e2ffacSDavid Woodhouse spin_lock_irq(&card->param_queue_lock);
27901e2ffacSDavid Woodhouse list_del(&prm.list);
28001e2ffacSDavid Woodhouse spin_unlock_irq(&card->param_queue_lock);
28101e2ffacSDavid Woodhouse
28201e2ffacSDavid Woodhouse skb = prm.response;
28301e2ffacSDavid Woodhouse
28401e2ffacSDavid Woodhouse if (!skb)
28501e2ffacSDavid Woodhouse return -EIO;
28601e2ffacSDavid Woodhouse
28701e2ffacSDavid Woodhouse buflen = skb->len;
28801e2ffacSDavid Woodhouse
28901e2ffacSDavid Woodhouse /* Sometimes it has a newline, sometimes it doesn't. */
29001e2ffacSDavid Woodhouse if (skb->data[buflen - 1] == '\n')
29101e2ffacSDavid Woodhouse buflen--;
29201e2ffacSDavid Woodhouse
29301e2ffacSDavid Woodhouse if (buflen == 2 && !strncmp(skb->data, "OK", 2))
29401e2ffacSDavid Woodhouse ret = count;
29501e2ffacSDavid Woodhouse else if (buflen == 5 && !strncmp(skb->data, "ERROR", 5))
29601e2ffacSDavid Woodhouse ret = -EIO;
29701e2ffacSDavid Woodhouse else {
29801e2ffacSDavid Woodhouse /* We know we have enough space allocated for this; we allocated
29901e2ffacSDavid Woodhouse it ourselves */
30001e2ffacSDavid Woodhouse skb->data[buflen] = 0;
30101e2ffacSDavid Woodhouse
30201e2ffacSDavid Woodhouse dev_warn(&card->dev->dev, "Unexpected parameter response: '%s'\n",
30301e2ffacSDavid Woodhouse skb->data);
30401e2ffacSDavid Woodhouse ret = -EIO;
30501e2ffacSDavid Woodhouse }
30601e2ffacSDavid Woodhouse kfree_skb(skb);
30701e2ffacSDavid Woodhouse
30801e2ffacSDavid Woodhouse return ret;
30901e2ffacSDavid Woodhouse }
31001e2ffacSDavid Woodhouse
next_string(struct sk_buff * skb)31187ebb186SDavid Woodhouse static char *next_string(struct sk_buff *skb)
31287ebb186SDavid Woodhouse {
31387ebb186SDavid Woodhouse int i = 0;
31487ebb186SDavid Woodhouse char *this = skb->data;
31587ebb186SDavid Woodhouse
316c6428e52SDavid Woodhouse for (i = 0; i < skb->len; i++) {
31787ebb186SDavid Woodhouse if (this[i] == '\n') {
31887ebb186SDavid Woodhouse this[i] = 0;
319c6428e52SDavid Woodhouse skb_pull(skb, i + 1);
32087ebb186SDavid Woodhouse return this;
32187ebb186SDavid Woodhouse }
322c6428e52SDavid Woodhouse if (!isprint(this[i]))
323c6428e52SDavid Woodhouse return NULL;
32487ebb186SDavid Woodhouse }
32587ebb186SDavid Woodhouse return NULL;
32687ebb186SDavid Woodhouse }
32787ebb186SDavid Woodhouse
32887ebb186SDavid Woodhouse /*
32987ebb186SDavid Woodhouse * Status packet has fields separated by \n, starting with a version number
33087ebb186SDavid Woodhouse * for the information therein. Fields are....
33187ebb186SDavid Woodhouse *
33287ebb186SDavid Woodhouse * packet version
33387ebb186SDavid Woodhouse * RxBitRate (version >= 1)
334f87b2ed2SDavid Woodhouse * TxBitRate (version >= 1)
33587ebb186SDavid Woodhouse * State (version >= 1)
336f87b2ed2SDavid Woodhouse * LocalSNRMargin (version >= 1)
337f87b2ed2SDavid Woodhouse * LocalLineAttn (version >= 1)
33887ebb186SDavid Woodhouse */
process_status(struct solos_card * card,int port,struct sk_buff * skb)33987ebb186SDavid Woodhouse static int process_status(struct solos_card *card, int port, struct sk_buff *skb)
34087ebb186SDavid Woodhouse {
341e94d91a6SLABBE Corentin char *str, *state_str, *snr, *attn;
342e94d91a6SLABBE Corentin int ver, rate_up, rate_down, err;
34387ebb186SDavid Woodhouse
34487ebb186SDavid Woodhouse if (!card->atmdev[port])
34587ebb186SDavid Woodhouse return -ENODEV;
34687ebb186SDavid Woodhouse
34787ebb186SDavid Woodhouse str = next_string(skb);
34887ebb186SDavid Woodhouse if (!str)
34987ebb186SDavid Woodhouse return -EIO;
35087ebb186SDavid Woodhouse
351e94d91a6SLABBE Corentin err = kstrtoint(str, 10, &ver);
352e94d91a6SLABBE Corentin if (err) {
353e94d91a6SLABBE Corentin dev_warn(&card->dev->dev, "Unexpected status interrupt version\n");
354e94d91a6SLABBE Corentin return err;
355e94d91a6SLABBE Corentin }
35687ebb186SDavid Woodhouse if (ver < 1) {
35787ebb186SDavid Woodhouse dev_warn(&card->dev->dev, "Unexpected status interrupt version %d\n",
35887ebb186SDavid Woodhouse ver);
35987ebb186SDavid Woodhouse return -EIO;
36087ebb186SDavid Woodhouse }
36187ebb186SDavid Woodhouse
36287ebb186SDavid Woodhouse str = next_string(skb);
363c6428e52SDavid Woodhouse if (!str)
364c6428e52SDavid Woodhouse return -EIO;
36595852f48SDavid Woodhouse if (!strcmp(str, "ERROR")) {
36695852f48SDavid Woodhouse dev_dbg(&card->dev->dev, "Status packet indicated Solos error on port %d (starting up?)\n",
36795852f48SDavid Woodhouse port);
36895852f48SDavid Woodhouse return 0;
36995852f48SDavid Woodhouse }
37095852f48SDavid Woodhouse
371e94d91a6SLABBE Corentin err = kstrtoint(str, 10, &rate_down);
372e94d91a6SLABBE Corentin if (err)
373e94d91a6SLABBE Corentin return err;
37487ebb186SDavid Woodhouse
37587ebb186SDavid Woodhouse str = next_string(skb);
376c6428e52SDavid Woodhouse if (!str)
377c6428e52SDavid Woodhouse return -EIO;
378e94d91a6SLABBE Corentin err = kstrtoint(str, 10, &rate_up);
379e94d91a6SLABBE Corentin if (err)
380e94d91a6SLABBE Corentin return err;
38187ebb186SDavid Woodhouse
382af780656SDavid Woodhouse state_str = next_string(skb);
383c6428e52SDavid Woodhouse if (!state_str)
384c6428e52SDavid Woodhouse return -EIO;
38587ebb186SDavid Woodhouse
386f87b2ed2SDavid Woodhouse /* Anything but 'Showtime' is down */
387f87b2ed2SDavid Woodhouse if (strcmp(state_str, "Showtime")) {
38849d49106SKarl Hiramoto atm_dev_signal_change(card->atmdev[port], ATM_PHY_SIG_LOST);
38995852f48SDavid Woodhouse dev_info(&card->dev->dev, "Port %d: %s\n", port, state_str);
390f87b2ed2SDavid Woodhouse return 0;
391f87b2ed2SDavid Woodhouse }
392af780656SDavid Woodhouse
393c6428e52SDavid Woodhouse snr = next_string(skb);
3946cf5767cSJulia Lawall if (!snr)
395c6428e52SDavid Woodhouse return -EIO;
396c6428e52SDavid Woodhouse attn = next_string(skb);
397c6428e52SDavid Woodhouse if (!attn)
398c6428e52SDavid Woodhouse return -EIO;
399c6428e52SDavid Woodhouse
40095852f48SDavid Woodhouse dev_info(&card->dev->dev, "Port %d: %s @%d/%d kb/s%s%s%s%s\n",
401c6428e52SDavid Woodhouse port, state_str, rate_down/1000, rate_up/1000,
402c6428e52SDavid Woodhouse snr[0]?", SNR ":"", snr, attn[0]?", Attn ":"", attn);
403f87b2ed2SDavid Woodhouse
404c6428e52SDavid Woodhouse card->atmdev[port]->link_rate = rate_down / 424;
40549d49106SKarl Hiramoto atm_dev_signal_change(card->atmdev[port], ATM_PHY_SIG_FOUND);
40687ebb186SDavid Woodhouse
40787ebb186SDavid Woodhouse return 0;
40887ebb186SDavid Woodhouse }
40987ebb186SDavid Woodhouse
process_command(struct solos_card * card,int port,struct sk_buff * skb)41001e2ffacSDavid Woodhouse static int process_command(struct solos_card *card, int port, struct sk_buff *skb)
41101e2ffacSDavid Woodhouse {
41201e2ffacSDavid Woodhouse struct solos_param *prm;
41301e2ffacSDavid Woodhouse unsigned long flags;
41401e2ffacSDavid Woodhouse int cmdpid;
415e94d91a6SLABBE Corentin int found = 0, err;
41601e2ffacSDavid Woodhouse
41701e2ffacSDavid Woodhouse if (skb->len < 7)
41801e2ffacSDavid Woodhouse return 0;
41901e2ffacSDavid Woodhouse
42001e2ffacSDavid Woodhouse if (skb->data[0] != 'L' || !isdigit(skb->data[1]) ||
42101e2ffacSDavid Woodhouse !isdigit(skb->data[2]) || !isdigit(skb->data[3]) ||
42201e2ffacSDavid Woodhouse !isdigit(skb->data[4]) || !isdigit(skb->data[5]) ||
42301e2ffacSDavid Woodhouse skb->data[6] != '\n')
42401e2ffacSDavid Woodhouse return 0;
42501e2ffacSDavid Woodhouse
426e94d91a6SLABBE Corentin err = kstrtoint(&skb->data[1], 10, &cmdpid);
427e94d91a6SLABBE Corentin if (err)
428e94d91a6SLABBE Corentin return err;
42901e2ffacSDavid Woodhouse
43001e2ffacSDavid Woodhouse spin_lock_irqsave(&card->param_queue_lock, flags);
43101e2ffacSDavid Woodhouse list_for_each_entry(prm, &card->param_queue, list) {
43201e2ffacSDavid Woodhouse if (prm->port == port && prm->pid == cmdpid) {
43301e2ffacSDavid Woodhouse prm->response = skb;
43401e2ffacSDavid Woodhouse skb_pull(skb, 7);
43501e2ffacSDavid Woodhouse wake_up(&card->param_wq);
43601e2ffacSDavid Woodhouse found = 1;
43701e2ffacSDavid Woodhouse break;
43801e2ffacSDavid Woodhouse }
43901e2ffacSDavid Woodhouse }
44001e2ffacSDavid Woodhouse spin_unlock_irqrestore(&card->param_queue_lock, flags);
44101e2ffacSDavid Woodhouse return found;
44201e2ffacSDavid Woodhouse }
44301e2ffacSDavid Woodhouse
console_show(struct device * dev,struct device_attribute * attr,char * buf)4449c54004eSDavid Woodhouse static ssize_t console_show(struct device *dev, struct device_attribute *attr,
4459c54004eSDavid Woodhouse char *buf)
4469c54004eSDavid Woodhouse {
4479c54004eSDavid Woodhouse struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
4489c54004eSDavid Woodhouse struct solos_card *card = atmdev->dev_data;
4499c54004eSDavid Woodhouse struct sk_buff *skb;
450f1ee89d5SJiri Slaby unsigned int len;
4519c54004eSDavid Woodhouse
4524faf39c4SChengfeng Ye spin_lock_bh(&card->cli_queue_lock);
4539c54004eSDavid Woodhouse skb = skb_dequeue(&card->cli_queue[SOLOS_CHAN(atmdev)]);
4544faf39c4SChengfeng Ye spin_unlock_bh(&card->cli_queue_lock);
4559c54004eSDavid Woodhouse if(skb == NULL)
4569c54004eSDavid Woodhouse return sprintf(buf, "No data.\n");
4579c54004eSDavid Woodhouse
458f1ee89d5SJiri Slaby len = skb->len;
459f1ee89d5SJiri Slaby memcpy(buf, skb->data, len);
4609c54004eSDavid Woodhouse
4619c54004eSDavid Woodhouse kfree_skb(skb);
462f1ee89d5SJiri Slaby return len;
4639c54004eSDavid Woodhouse }
4649c54004eSDavid Woodhouse
send_command(struct solos_card * card,int dev,const char * buf,size_t size)4659c54004eSDavid Woodhouse static int send_command(struct solos_card *card, int dev, const char *buf, size_t size)
4669c54004eSDavid Woodhouse {
4679c54004eSDavid Woodhouse struct sk_buff *skb;
4689c54004eSDavid Woodhouse struct pkt_hdr *header;
4699c54004eSDavid Woodhouse
4709c54004eSDavid Woodhouse if (size > (BUF_SIZE - sizeof(*header))) {
4719c54004eSDavid Woodhouse dev_dbg(&card->dev->dev, "Command is too big. Dropping request\n");
4729c54004eSDavid Woodhouse return 0;
4739c54004eSDavid Woodhouse }
4749c54004eSDavid Woodhouse skb = alloc_skb(size + sizeof(*header), GFP_ATOMIC);
4759c54004eSDavid Woodhouse if (!skb) {
4769c54004eSDavid Woodhouse dev_warn(&card->dev->dev, "Failed to allocate sk_buff in send_command()\n");
4779c54004eSDavid Woodhouse return 0;
4789c54004eSDavid Woodhouse }
4799c54004eSDavid Woodhouse
4804df864c1SJohannes Berg header = skb_put(skb, sizeof(*header));
4819c54004eSDavid Woodhouse
4829c54004eSDavid Woodhouse header->size = cpu_to_le16(size);
4839c54004eSDavid Woodhouse header->vpi = cpu_to_le16(0);
4849c54004eSDavid Woodhouse header->vci = cpu_to_le16(0);
4859c54004eSDavid Woodhouse header->type = cpu_to_le16(PKT_COMMAND);
4869c54004eSDavid Woodhouse
48759ae1d12SJohannes Berg skb_put_data(skb, buf, size);
4889c54004eSDavid Woodhouse
4899c54004eSDavid Woodhouse fpga_queue(card, dev, skb, NULL);
4909c54004eSDavid Woodhouse
4919c54004eSDavid Woodhouse return 0;
4929c54004eSDavid Woodhouse }
4939c54004eSDavid Woodhouse
console_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)4949c54004eSDavid Woodhouse static ssize_t console_store(struct device *dev, struct device_attribute *attr,
4959c54004eSDavid Woodhouse const char *buf, size_t count)
4969c54004eSDavid Woodhouse {
4979c54004eSDavid Woodhouse struct atm_dev *atmdev = container_of(dev, struct atm_dev, class_dev);
4989c54004eSDavid Woodhouse struct solos_card *card = atmdev->dev_data;
4999c54004eSDavid Woodhouse int err;
5009c54004eSDavid Woodhouse
5019c54004eSDavid Woodhouse err = send_command(card, SOLOS_CHAN(atmdev), buf, count);
5029c54004eSDavid Woodhouse
5039c54004eSDavid Woodhouse return err?:count;
5049c54004eSDavid Woodhouse }
5059c54004eSDavid Woodhouse
506f9baad02SNathan Williams struct geos_gpio_attr {
507f9baad02SNathan Williams struct device_attribute attr;
508f9baad02SNathan Williams int offset;
509f9baad02SNathan Williams };
510f9baad02SNathan Williams
511f9baad02SNathan Williams #define SOLOS_GPIO_ATTR(_name, _mode, _show, _store, _offset) \
512f9baad02SNathan Williams struct geos_gpio_attr gpio_attr_##_name = { \
513f9baad02SNathan Williams .attr = __ATTR(_name, _mode, _show, _store), \
514f9baad02SNathan Williams .offset = _offset }
515f9baad02SNathan Williams
geos_gpio_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)516f9baad02SNathan Williams static ssize_t geos_gpio_store(struct device *dev, struct device_attribute *attr,
517f9baad02SNathan Williams const char *buf, size_t count)
518f9baad02SNathan Williams {
519f9baad02SNathan Williams struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr);
520c349c0a2SChuhong Yuan struct solos_card *card = dev_get_drvdata(dev);
521f9baad02SNathan Williams uint32_t data32;
522f9baad02SNathan Williams
523f9baad02SNathan Williams if (count != 1 && (count != 2 || buf[1] != '\n'))
524f9baad02SNathan Williams return -EINVAL;
525f9baad02SNathan Williams
526f9baad02SNathan Williams spin_lock_irq(&card->param_queue_lock);
527f9baad02SNathan Williams data32 = ioread32(card->config_regs + GPIO_STATUS);
528f9baad02SNathan Williams if (buf[0] == '1') {
529f9baad02SNathan Williams data32 |= 1 << gattr->offset;
530f9baad02SNathan Williams iowrite32(data32, card->config_regs + GPIO_STATUS);
531f9baad02SNathan Williams } else if (buf[0] == '0') {
532f9baad02SNathan Williams data32 &= ~(1 << gattr->offset);
533f9baad02SNathan Williams iowrite32(data32, card->config_regs + GPIO_STATUS);
534f9baad02SNathan Williams } else {
535f9baad02SNathan Williams count = -EINVAL;
536f9baad02SNathan Williams }
53729042073SDan Carpenter spin_unlock_irq(&card->param_queue_lock);
538f9baad02SNathan Williams return count;
539f9baad02SNathan Williams }
540f9baad02SNathan Williams
geos_gpio_show(struct device * dev,struct device_attribute * attr,char * buf)541f9baad02SNathan Williams static ssize_t geos_gpio_show(struct device *dev, struct device_attribute *attr,
542f9baad02SNathan Williams char *buf)
543f9baad02SNathan Williams {
544f9baad02SNathan Williams struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr);
545c349c0a2SChuhong Yuan struct solos_card *card = dev_get_drvdata(dev);
546f9baad02SNathan Williams uint32_t data32;
547f9baad02SNathan Williams
548f9baad02SNathan Williams data32 = ioread32(card->config_regs + GPIO_STATUS);
549f9baad02SNathan Williams data32 = (data32 >> gattr->offset) & 1;
550f9baad02SNathan Williams
551f9baad02SNathan Williams return sprintf(buf, "%d\n", data32);
552f9baad02SNathan Williams }
553f9baad02SNathan Williams
hardware_show(struct device * dev,struct device_attribute * attr,char * buf)554f9baad02SNathan Williams static ssize_t hardware_show(struct device *dev, struct device_attribute *attr,
555f9baad02SNathan Williams char *buf)
556f9baad02SNathan Williams {
557f9baad02SNathan Williams struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr);
558c349c0a2SChuhong Yuan struct solos_card *card = dev_get_drvdata(dev);
559f9baad02SNathan Williams uint32_t data32;
560f9baad02SNathan Williams
561f9baad02SNathan Williams data32 = ioread32(card->config_regs + GPIO_STATUS);
562f9baad02SNathan Williams switch (gattr->offset) {
563f9baad02SNathan Williams case 0:
564f9baad02SNathan Williams /* HardwareVersion */
565f9baad02SNathan Williams data32 = data32 & 0x1F;
566f9baad02SNathan Williams break;
567f9baad02SNathan Williams case 1:
568f9baad02SNathan Williams /* HardwareVariant */
569f9baad02SNathan Williams data32 = (data32 >> 5) & 0x0F;
570f9baad02SNathan Williams break;
571f9baad02SNathan Williams }
572f9baad02SNathan Williams return sprintf(buf, "%d\n", data32);
573f9baad02SNathan Williams }
574f9baad02SNathan Williams
57589d9123eSJulia Lawall static DEVICE_ATTR_RW(console);
5769c54004eSDavid Woodhouse
577d057f0a4SDavid Woodhouse
578d057f0a4SDavid Woodhouse #define SOLOS_ATTR_RO(x) static DEVICE_ATTR(x, 0444, solos_param_show, NULL);
579d057f0a4SDavid Woodhouse #define SOLOS_ATTR_RW(x) static DEVICE_ATTR(x, 0644, solos_param_show, solos_param_store);
580d057f0a4SDavid Woodhouse
581d057f0a4SDavid Woodhouse #include "solos-attrlist.c"
582d057f0a4SDavid Woodhouse
583f9baad02SNathan Williams static SOLOS_GPIO_ATTR(GPIO1, 0644, geos_gpio_show, geos_gpio_store, 9);
584f9baad02SNathan Williams static SOLOS_GPIO_ATTR(GPIO2, 0644, geos_gpio_show, geos_gpio_store, 10);
585f9baad02SNathan Williams static SOLOS_GPIO_ATTR(GPIO3, 0644, geos_gpio_show, geos_gpio_store, 11);
586f9baad02SNathan Williams static SOLOS_GPIO_ATTR(GPIO4, 0644, geos_gpio_show, geos_gpio_store, 12);
587f9baad02SNathan Williams static SOLOS_GPIO_ATTR(GPIO5, 0644, geos_gpio_show, geos_gpio_store, 13);
588f9baad02SNathan Williams static SOLOS_GPIO_ATTR(PushButton, 0444, geos_gpio_show, NULL, 14);
589f9baad02SNathan Williams static SOLOS_GPIO_ATTR(HardwareVersion, 0444, hardware_show, NULL, 0);
590f9baad02SNathan Williams static SOLOS_GPIO_ATTR(HardwareVariant, 0444, hardware_show, NULL, 1);
591d057f0a4SDavid Woodhouse #undef SOLOS_ATTR_RO
592d057f0a4SDavid Woodhouse #undef SOLOS_ATTR_RW
593d057f0a4SDavid Woodhouse
594d057f0a4SDavid Woodhouse #define SOLOS_ATTR_RO(x) &dev_attr_##x.attr,
595d057f0a4SDavid Woodhouse #define SOLOS_ATTR_RW(x) &dev_attr_##x.attr,
596d057f0a4SDavid Woodhouse
597d057f0a4SDavid Woodhouse static struct attribute *solos_attrs[] = {
598d057f0a4SDavid Woodhouse #include "solos-attrlist.c"
599d057f0a4SDavid Woodhouse NULL
600d057f0a4SDavid Woodhouse };
601d057f0a4SDavid Woodhouse
602638ce0fcSAmitoj Kaur Chawla static const struct attribute_group solos_attr_group = {
603d057f0a4SDavid Woodhouse .attrs = solos_attrs,
604d057f0a4SDavid Woodhouse .name = "parameters",
605d057f0a4SDavid Woodhouse };
6069c54004eSDavid Woodhouse
607f9baad02SNathan Williams static struct attribute *gpio_attrs[] = {
608f9baad02SNathan Williams &gpio_attr_GPIO1.attr.attr,
609f9baad02SNathan Williams &gpio_attr_GPIO2.attr.attr,
610f9baad02SNathan Williams &gpio_attr_GPIO3.attr.attr,
611f9baad02SNathan Williams &gpio_attr_GPIO4.attr.attr,
612f9baad02SNathan Williams &gpio_attr_GPIO5.attr.attr,
613f9baad02SNathan Williams &gpio_attr_PushButton.attr.attr,
614f9baad02SNathan Williams &gpio_attr_HardwareVersion.attr.attr,
615f9baad02SNathan Williams &gpio_attr_HardwareVariant.attr.attr,
616f9baad02SNathan Williams NULL
617f9baad02SNathan Williams };
618f9baad02SNathan Williams
619638ce0fcSAmitoj Kaur Chawla static const struct attribute_group gpio_attr_group = {
620f9baad02SNathan Williams .attrs = gpio_attrs,
621f9baad02SNathan Williams .name = "gpio",
622f9baad02SNathan Williams };
623f9baad02SNathan Williams
flash_upgrade(struct solos_card * card,int chip)624fa755b9fSDavid Woodhouse static int flash_upgrade(struct solos_card *card, int chip)
625fa755b9fSDavid Woodhouse {
626fa755b9fSDavid Woodhouse const struct firmware *fw;
627fa755b9fSDavid Woodhouse const char *fw_name;
6287c4015bdSSimon Farnsworth int blocksize = 0;
6297c4015bdSSimon Farnsworth int numblocks = 0;
630fa755b9fSDavid Woodhouse int offset;
631fa755b9fSDavid Woodhouse
6327adcdb4cSAndrew Morton switch (chip) {
6337adcdb4cSAndrew Morton case 0:
634fa755b9fSDavid Woodhouse fw_name = "solos-FPGA.bin";
63513af8164SNathan Williams if (card->atmel_flash)
63613af8164SNathan Williams blocksize = ATMEL_FPGA_BLOCK;
63713af8164SNathan Williams else
63813af8164SNathan Williams blocksize = SPI_FLASH_BLOCK;
6397adcdb4cSAndrew Morton break;
6407adcdb4cSAndrew Morton case 1:
641fa755b9fSDavid Woodhouse fw_name = "solos-Firmware.bin";
64213af8164SNathan Williams if (card->atmel_flash)
64313af8164SNathan Williams blocksize = ATMEL_SOLOS_BLOCK;
64413af8164SNathan Williams else
64513af8164SNathan Williams blocksize = SPI_FLASH_BLOCK;
6467adcdb4cSAndrew Morton break;
6477adcdb4cSAndrew Morton case 2:
6484dbedf43SNathan Williams if (card->fpga_version > LEGACY_BUFFERS){
6494dbedf43SNathan Williams fw_name = "solos-db-FPGA.bin";
65013af8164SNathan Williams if (card->atmel_flash)
65113af8164SNathan Williams blocksize = ATMEL_FPGA_BLOCK;
65213af8164SNathan Williams else
65313af8164SNathan Williams blocksize = SPI_FLASH_BLOCK;
6544dbedf43SNathan Williams } else {
6557adcdb4cSAndrew Morton dev_info(&card->dev->dev, "FPGA version doesn't support"
6567adcdb4cSAndrew Morton " daughter board upgrades\n");
6574dbedf43SNathan Williams return -EPERM;
6584dbedf43SNathan Williams }
6597adcdb4cSAndrew Morton break;
6607adcdb4cSAndrew Morton case 3:
6614dbedf43SNathan Williams if (card->fpga_version > LEGACY_BUFFERS){
6624dbedf43SNathan Williams fw_name = "solos-Firmware.bin";
66313af8164SNathan Williams if (card->atmel_flash)
66413af8164SNathan Williams blocksize = ATMEL_SOLOS_BLOCK;
66513af8164SNathan Williams else
66613af8164SNathan Williams blocksize = SPI_FLASH_BLOCK;
6674dbedf43SNathan Williams } else {
6687adcdb4cSAndrew Morton dev_info(&card->dev->dev, "FPGA version doesn't support"
6697adcdb4cSAndrew Morton " daughter board upgrades\n");
6704dbedf43SNathan Williams return -EPERM;
6714dbedf43SNathan Williams }
6727adcdb4cSAndrew Morton break;
6737adcdb4cSAndrew Morton default:
6747adcdb4cSAndrew Morton return -ENODEV;
6754dbedf43SNathan Williams }
6764dbedf43SNathan Williams
677fa755b9fSDavid Woodhouse if (request_firmware(&fw, fw_name, &card->dev->dev))
678fa755b9fSDavid Woodhouse return -ENOENT;
679fa755b9fSDavid Woodhouse
680fa755b9fSDavid Woodhouse dev_info(&card->dev->dev, "Flash upgrade starting\n");
681fa755b9fSDavid Woodhouse
68213af8164SNathan Williams /* New FPGAs require driver version before permitting flash upgrades */
68313af8164SNathan Williams iowrite32(DRIVER_VERSION, card->config_regs + DRIVER_VER);
68413af8164SNathan Williams
685fa755b9fSDavid Woodhouse numblocks = fw->size / blocksize;
686fa755b9fSDavid Woodhouse dev_info(&card->dev->dev, "Firmware size: %zd\n", fw->size);
687fa755b9fSDavid Woodhouse dev_info(&card->dev->dev, "Number of blocks: %d\n", numblocks);
6887c4015bdSSimon Farnsworth
6897c4015bdSSimon Farnsworth dev_info(&card->dev->dev, "Changing FPGA to Update mode\n");
6907c4015bdSSimon Farnsworth iowrite32(1, card->config_regs + FPGA_MODE);
69106091ed6SDavid S. Miller (void) ioread32(card->config_regs + FPGA_MODE);
6927c4015bdSSimon Farnsworth
693fa755b9fSDavid Woodhouse /* Set mode to Chip Erase */
6944dbedf43SNathan Williams if(chip == 0 || chip == 2)
6954dbedf43SNathan Williams dev_info(&card->dev->dev, "Set FPGA Flash mode to FPGA Chip Erase\n");
6964dbedf43SNathan Williams if(chip == 1 || chip == 3)
6974dbedf43SNathan Williams dev_info(&card->dev->dev, "Set FPGA Flash mode to Solos Chip Erase\n");
698fa755b9fSDavid Woodhouse iowrite32((chip * 2), card->config_regs + FLASH_MODE);
699fa755b9fSDavid Woodhouse
700fa755b9fSDavid Woodhouse
701fa755b9fSDavid Woodhouse iowrite32(1, card->config_regs + WRITE_FLASH);
702fa755b9fSDavid Woodhouse wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
703fa755b9fSDavid Woodhouse
704fa755b9fSDavid Woodhouse for (offset = 0; offset < fw->size; offset += blocksize) {
7057c4015bdSSimon Farnsworth int i;
7067c4015bdSSimon Farnsworth
7077c4015bdSSimon Farnsworth /* Clear write flag */
7087c4015bdSSimon Farnsworth iowrite32(0, card->config_regs + WRITE_FLASH);
709fa755b9fSDavid Woodhouse
7107c4015bdSSimon Farnsworth /* Set mode to Block Write */
7117c4015bdSSimon Farnsworth /* dev_info(&card->dev->dev, "Set FPGA Flash mode to Block Write\n"); */
712fa755b9fSDavid Woodhouse iowrite32(((chip * 2) + 1), card->config_regs + FLASH_MODE);
7137c4015bdSSimon Farnsworth
71413af8164SNathan Williams /* Copy block to buffer, swapping each 16 bits for Atmel flash */
715fa755b9fSDavid Woodhouse for(i = 0; i < blocksize; i += 4) {
71613af8164SNathan Williams uint32_t word;
71713af8164SNathan Williams if (card->atmel_flash)
71813af8164SNathan Williams word = swahb32p((uint32_t *)(fw->data + offset + i));
71913af8164SNathan Williams else
72013af8164SNathan Williams word = *(uint32_t *)(fw->data + offset + i);
7214dbedf43SNathan Williams if(card->fpga_version > LEGACY_BUFFERS)
7224dbedf43SNathan Williams iowrite32(word, FLASH_BUF + i);
7234dbedf43SNathan Williams else
724fa755b9fSDavid Woodhouse iowrite32(word, RX_BUF(card, 3) + i);
725fa755b9fSDavid Woodhouse }
726fa755b9fSDavid Woodhouse
727fa755b9fSDavid Woodhouse /* Specify block number and then trigger flash write */
728fa755b9fSDavid Woodhouse iowrite32(offset / blocksize, card->config_regs + FLASH_BLOCK);
729fa755b9fSDavid Woodhouse iowrite32(1, card->config_regs + WRITE_FLASH);
730fa755b9fSDavid Woodhouse wait_event(card->fw_wq, !ioread32(card->config_regs + FLASH_BUSY));
731fa755b9fSDavid Woodhouse }
732fa755b9fSDavid Woodhouse
733fa755b9fSDavid Woodhouse release_firmware(fw);
7347c4015bdSSimon Farnsworth iowrite32(0, card->config_regs + WRITE_FLASH);
7357c4015bdSSimon Farnsworth iowrite32(0, card->config_regs + FPGA_MODE);
7367c4015bdSSimon Farnsworth iowrite32(0, card->config_regs + FLASH_MODE);
7377c4015bdSSimon Farnsworth dev_info(&card->dev->dev, "Returning FPGA to Data mode\n");
738fa755b9fSDavid Woodhouse return 0;
7397c4015bdSSimon Farnsworth }
7407c4015bdSSimon Farnsworth
solos_irq(int irq,void * dev_id)7419c54004eSDavid Woodhouse static irqreturn_t solos_irq(int irq, void *dev_id)
7429c54004eSDavid Woodhouse {
7439c54004eSDavid Woodhouse struct solos_card *card = dev_id;
7449c54004eSDavid Woodhouse int handled = 1;
7459c54004eSDavid Woodhouse
7469c54004eSDavid Woodhouse iowrite32(0, card->config_regs + IRQ_CLEAR);
7479c54004eSDavid Woodhouse
74835c2221bSDavid Woodhouse /* If we're up and running, just kick the tasklet to process TX/RX */
749fa755b9fSDavid Woodhouse if (card->atmdev[0])
7509c54004eSDavid Woodhouse tasklet_schedule(&card->tlet);
751fa755b9fSDavid Woodhouse else
752fa755b9fSDavid Woodhouse wake_up(&card->fw_wq);
7539c54004eSDavid Woodhouse
7549c54004eSDavid Woodhouse return IRQ_RETVAL(handled);
7559c54004eSDavid Woodhouse }
7569c54004eSDavid Woodhouse
solos_bh(unsigned long card_arg)7575f4d4e3fSDaeseok Youn static void solos_bh(unsigned long card_arg)
7589c54004eSDavid Woodhouse {
7599c54004eSDavid Woodhouse struct solos_card *card = (void *)card_arg;
7609c54004eSDavid Woodhouse uint32_t card_flags;
7619c54004eSDavid Woodhouse uint32_t rx_done = 0;
76235c2221bSDavid Woodhouse int port;
7639c54004eSDavid Woodhouse
76435c2221bSDavid Woodhouse /*
76535c2221bSDavid Woodhouse * Since fpga_tx() is going to need to read the flags under its lock,
76635c2221bSDavid Woodhouse * it can return them to us so that we don't have to hit PCI MMIO
76735c2221bSDavid Woodhouse * again for the same information
76835c2221bSDavid Woodhouse */
76935c2221bSDavid Woodhouse card_flags = fpga_tx(card);
7709c54004eSDavid Woodhouse
7719c54004eSDavid Woodhouse for (port = 0; port < card->nr_ports; port++) {
7729c54004eSDavid Woodhouse if (card_flags & (0x10 << port)) {
77390937231SDavid Woodhouse struct pkt_hdr _hdr, *header;
7749c54004eSDavid Woodhouse struct sk_buff *skb;
7759c54004eSDavid Woodhouse struct atm_vcc *vcc;
7769c54004eSDavid Woodhouse int size;
7779c54004eSDavid Woodhouse
77890937231SDavid Woodhouse if (card->using_dma) {
77990937231SDavid Woodhouse skb = card->rx_skb[port];
780eaf83e39SDavid Woodhouse card->rx_skb[port] = NULL;
78190937231SDavid Woodhouse
782ede58ef2Schas williams - CONTRACTOR dma_unmap_single(&card->dev->dev, SKB_CB(skb)->dma_addr,
783ede58ef2Schas williams - CONTRACTOR RX_DMA_SIZE, DMA_FROM_DEVICE);
784eaf83e39SDavid Woodhouse
78590937231SDavid Woodhouse header = (void *)skb->data;
78690937231SDavid Woodhouse size = le16_to_cpu(header->size);
78790937231SDavid Woodhouse skb_put(skb, size + sizeof(*header));
78890937231SDavid Woodhouse skb_pull(skb, sizeof(*header));
78990937231SDavid Woodhouse } else {
79090937231SDavid Woodhouse header = &_hdr;
79190937231SDavid Woodhouse
7929c54004eSDavid Woodhouse rx_done |= 0x10 << port;
7939c54004eSDavid Woodhouse
79490937231SDavid Woodhouse memcpy_fromio(header, RX_BUF(card, port), sizeof(*header));
7959c54004eSDavid Woodhouse
79690937231SDavid Woodhouse size = le16_to_cpu(header->size);
79778f857f2SNathan Williams if (size > (card->buffer_size - sizeof(*header))){
79878f857f2SNathan Williams dev_warn(&card->dev->dev, "Invalid buffer size\n");
79978f857f2SNathan Williams continue;
80078f857f2SNathan Williams }
8019c54004eSDavid Woodhouse
802ce816eb0SDavid Woodhouse /* Use netdev_alloc_skb() because it adds NET_SKB_PAD of
803ce816eb0SDavid Woodhouse * headroom, and ensures we can route packets back out an
804ce816eb0SDavid Woodhouse * Ethernet interface (for example) without having to
805ce816eb0SDavid Woodhouse * reallocate. Adding NET_IP_ALIGN also ensures that both
806ce816eb0SDavid Woodhouse * PPPoATM and PPPoEoBR2684 packets end up aligned. */
807ce816eb0SDavid Woodhouse skb = netdev_alloc_skb_ip_align(NULL, size + 1);
8089c54004eSDavid Woodhouse if (!skb) {
8099c54004eSDavid Woodhouse if (net_ratelimit())
8109c54004eSDavid Woodhouse dev_warn(&card->dev->dev, "Failed to allocate sk_buff for RX\n");
8119c54004eSDavid Woodhouse continue;
8129c54004eSDavid Woodhouse }
8139c54004eSDavid Woodhouse
8149c54004eSDavid Woodhouse memcpy_fromio(skb_put(skb, size),
81590937231SDavid Woodhouse RX_BUF(card, port) + sizeof(*header),
8169c54004eSDavid Woodhouse size);
81790937231SDavid Woodhouse }
8189c54004eSDavid Woodhouse if (atmdebug) {
81918b429e7SPhilip A. Prindeville dev_info(&card->dev->dev, "Received: port %d\n", port);
8209c54004eSDavid Woodhouse dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
82190937231SDavid Woodhouse size, le16_to_cpu(header->vpi),
82290937231SDavid Woodhouse le16_to_cpu(header->vci));
8239c54004eSDavid Woodhouse print_buffer(skb);
8249c54004eSDavid Woodhouse }
8259c54004eSDavid Woodhouse
82690937231SDavid Woodhouse switch (le16_to_cpu(header->type)) {
8279c54004eSDavid Woodhouse case PKT_DATA:
82890937231SDavid Woodhouse vcc = find_vcc(card->atmdev[port], le16_to_cpu(header->vpi),
82990937231SDavid Woodhouse le16_to_cpu(header->vci));
8309c54004eSDavid Woodhouse if (!vcc) {
8319c54004eSDavid Woodhouse if (net_ratelimit())
8321e19e658SPhilip A. Prindeville dev_warn(&card->dev->dev, "Received packet for unknown VPI.VCI %d.%d on port %d\n",
8331e19e658SPhilip A. Prindeville le16_to_cpu(header->vpi), le16_to_cpu(header->vci),
8349c54004eSDavid Woodhouse port);
835007ef52bSNathan Williams dev_kfree_skb_any(skb);
836007ef52bSNathan Williams break;
8379c54004eSDavid Woodhouse }
8389c54004eSDavid Woodhouse atm_charge(vcc, skb->truesize);
8399c54004eSDavid Woodhouse vcc->push(vcc, skb);
8409c54004eSDavid Woodhouse atomic_inc(&vcc->stats->rx);
8419c54004eSDavid Woodhouse break;
8429c54004eSDavid Woodhouse
84387ebb186SDavid Woodhouse case PKT_STATUS:
84495852f48SDavid Woodhouse if (process_status(card, port, skb) &&
84595852f48SDavid Woodhouse net_ratelimit()) {
84695852f48SDavid Woodhouse dev_warn(&card->dev->dev, "Bad status packet of %d bytes on port %d:\n", skb->len, port);
84795852f48SDavid Woodhouse print_buffer(skb);
84895852f48SDavid Woodhouse }
849eaf83e39SDavid Woodhouse dev_kfree_skb_any(skb);
85087ebb186SDavid Woodhouse break;
85187ebb186SDavid Woodhouse
8529c54004eSDavid Woodhouse case PKT_COMMAND:
8539c54004eSDavid Woodhouse default: /* FIXME: Not really, surely? */
85401e2ffacSDavid Woodhouse if (process_command(card, port, skb))
85501e2ffacSDavid Woodhouse break;
8569c54004eSDavid Woodhouse spin_lock(&card->cli_queue_lock);
8579c54004eSDavid Woodhouse if (skb_queue_len(&card->cli_queue[port]) > 10) {
8589c54004eSDavid Woodhouse if (net_ratelimit())
8599c54004eSDavid Woodhouse dev_warn(&card->dev->dev, "Dropping console response on port %d\n",
8609c54004eSDavid Woodhouse port);
861eaf83e39SDavid Woodhouse dev_kfree_skb_any(skb);
8629c54004eSDavid Woodhouse } else
8639c54004eSDavid Woodhouse skb_queue_tail(&card->cli_queue[port], skb);
8649c54004eSDavid Woodhouse spin_unlock(&card->cli_queue_lock);
8659c54004eSDavid Woodhouse break;
8669c54004eSDavid Woodhouse }
8679c54004eSDavid Woodhouse }
868eaf83e39SDavid Woodhouse /* Allocate RX skbs for any ports which need them */
869eaf83e39SDavid Woodhouse if (card->using_dma && card->atmdev[port] &&
870eaf83e39SDavid Woodhouse !card->rx_skb[port]) {
871ce816eb0SDavid Woodhouse /* Unlike the MMIO case (qv) we can't add NET_IP_ALIGN
872ce816eb0SDavid Woodhouse * here; the FPGA can only DMA to addresses which are
873ce816eb0SDavid Woodhouse * aligned to 4 bytes. */
874ce816eb0SDavid Woodhouse struct sk_buff *skb = dev_alloc_skb(RX_DMA_SIZE);
875eaf83e39SDavid Woodhouse if (skb) {
876eaf83e39SDavid Woodhouse SKB_CB(skb)->dma_addr =
877ede58ef2Schas williams - CONTRACTOR dma_map_single(&card->dev->dev, skb->data,
878ede58ef2Schas williams - CONTRACTOR RX_DMA_SIZE, DMA_FROM_DEVICE);
879eaf83e39SDavid Woodhouse iowrite32(SKB_CB(skb)->dma_addr,
880eaf83e39SDavid Woodhouse card->config_regs + RX_DMA_ADDR(port));
881eaf83e39SDavid Woodhouse card->rx_skb[port] = skb;
882eaf83e39SDavid Woodhouse } else {
883eaf83e39SDavid Woodhouse if (net_ratelimit())
884eaf83e39SDavid Woodhouse dev_warn(&card->dev->dev, "Failed to allocate RX skb");
885eaf83e39SDavid Woodhouse
886eaf83e39SDavid Woodhouse /* We'll have to try again later */
887eaf83e39SDavid Woodhouse tasklet_schedule(&card->tlet);
888eaf83e39SDavid Woodhouse }
889eaf83e39SDavid Woodhouse }
8909c54004eSDavid Woodhouse }
8919c54004eSDavid Woodhouse if (rx_done)
8929c54004eSDavid Woodhouse iowrite32(rx_done, card->config_regs + FLAGS_ADDR);
8939c54004eSDavid Woodhouse
8949c54004eSDavid Woodhouse return;
8959c54004eSDavid Woodhouse }
8969c54004eSDavid Woodhouse
find_vcc(struct atm_dev * dev,short vpi,int vci)8979c54004eSDavid Woodhouse static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci)
8989c54004eSDavid Woodhouse {
8999c54004eSDavid Woodhouse struct hlist_head *head;
9009c54004eSDavid Woodhouse struct atm_vcc *vcc = NULL;
9019c54004eSDavid Woodhouse struct sock *s;
9029c54004eSDavid Woodhouse
9039c54004eSDavid Woodhouse read_lock(&vcc_sklist_lock);
9049c54004eSDavid Woodhouse head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
905b67bfe0dSSasha Levin sk_for_each(s, head) {
9069c54004eSDavid Woodhouse vcc = atm_sk(s);
9079c54004eSDavid Woodhouse if (vcc->dev == dev && vcc->vci == vci &&
9081f6ea6e5SDavid Woodhouse vcc->vpi == vpi && vcc->qos.rxtp.traffic_class != ATM_NONE &&
9091f6ea6e5SDavid Woodhouse test_bit(ATM_VF_READY, &vcc->flags))
9109c54004eSDavid Woodhouse goto out;
9119c54004eSDavid Woodhouse }
9129c54004eSDavid Woodhouse vcc = NULL;
9139c54004eSDavid Woodhouse out:
9149c54004eSDavid Woodhouse read_unlock(&vcc_sklist_lock);
9159c54004eSDavid Woodhouse return vcc;
9169c54004eSDavid Woodhouse }
9179c54004eSDavid Woodhouse
popen(struct atm_vcc * vcc)9189c54004eSDavid Woodhouse static int popen(struct atm_vcc *vcc)
9199c54004eSDavid Woodhouse {
9209c54004eSDavid Woodhouse struct solos_card *card = vcc->dev->dev_data;
9219c54004eSDavid Woodhouse struct sk_buff *skb;
9229c54004eSDavid Woodhouse struct pkt_hdr *header;
9239c54004eSDavid Woodhouse
924b28a4b9aSDavid Woodhouse if (vcc->qos.aal != ATM_AAL5) {
925b28a4b9aSDavid Woodhouse dev_warn(&card->dev->dev, "Unsupported ATM type %d\n",
926b28a4b9aSDavid Woodhouse vcc->qos.aal);
927b28a4b9aSDavid Woodhouse return -EINVAL;
928b28a4b9aSDavid Woodhouse }
929b28a4b9aSDavid Woodhouse
930a1db5c5bSDavid Woodhouse skb = alloc_skb(sizeof(*header), GFP_KERNEL);
931da1ab3e2SJesper Juhl if (!skb) {
932da1ab3e2SJesper Juhl if (net_ratelimit())
9339c54004eSDavid Woodhouse dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n");
9349c54004eSDavid Woodhouse return -ENOMEM;
9359c54004eSDavid Woodhouse }
9364df864c1SJohannes Berg header = skb_put(skb, sizeof(*header));
9379c54004eSDavid Woodhouse
938b76811afSDavid Woodhouse header->size = cpu_to_le16(0);
9399c54004eSDavid Woodhouse header->vpi = cpu_to_le16(vcc->vpi);
9409c54004eSDavid Woodhouse header->vci = cpu_to_le16(vcc->vci);
9419c54004eSDavid Woodhouse header->type = cpu_to_le16(PKT_POPEN);
9429c54004eSDavid Woodhouse
9439c54004eSDavid Woodhouse fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, NULL);
9449c54004eSDavid Woodhouse
945bdc54625SDavid Woodhouse set_bit(ATM_VF_ADDR, &vcc->flags);
9469c54004eSDavid Woodhouse set_bit(ATM_VF_READY, &vcc->flags);
9479c54004eSDavid Woodhouse
9489c54004eSDavid Woodhouse return 0;
9499c54004eSDavid Woodhouse }
9509c54004eSDavid Woodhouse
pclose(struct atm_vcc * vcc)9519c54004eSDavid Woodhouse static void pclose(struct atm_vcc *vcc)
9529c54004eSDavid Woodhouse {
9539c54004eSDavid Woodhouse struct solos_card *card = vcc->dev->dev_data;
9547ad3eadeSDavid Woodhouse unsigned char port = SOLOS_CHAN(vcc->dev);
955213e85d3SDavid Woodhouse struct sk_buff *skb, *tmpskb;
9569c54004eSDavid Woodhouse struct pkt_hdr *header;
9579c54004eSDavid Woodhouse
958213e85d3SDavid Woodhouse /* Remove any yet-to-be-transmitted packets from the pending queue */
959*82102501SChengfeng Ye spin_lock_bh(&card->tx_queue_lock);
960213e85d3SDavid Woodhouse skb_queue_walk_safe(&card->tx_queue[port], skb, tmpskb) {
961213e85d3SDavid Woodhouse if (SKB_CB(skb)->vcc == vcc) {
962213e85d3SDavid Woodhouse skb_unlink(skb, &card->tx_queue[port]);
963213e85d3SDavid Woodhouse solos_pop(vcc, skb);
964213e85d3SDavid Woodhouse }
965213e85d3SDavid Woodhouse }
966*82102501SChengfeng Ye spin_unlock_bh(&card->tx_queue_lock);
967213e85d3SDavid Woodhouse
968a1db5c5bSDavid Woodhouse skb = alloc_skb(sizeof(*header), GFP_KERNEL);
9699c54004eSDavid Woodhouse if (!skb) {
9709c54004eSDavid Woodhouse dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n");
9719c54004eSDavid Woodhouse return;
9729c54004eSDavid Woodhouse }
9734df864c1SJohannes Berg header = skb_put(skb, sizeof(*header));
9749c54004eSDavid Woodhouse
975b76811afSDavid Woodhouse header->size = cpu_to_le16(0);
9769c54004eSDavid Woodhouse header->vpi = cpu_to_le16(vcc->vpi);
9779c54004eSDavid Woodhouse header->vci = cpu_to_le16(vcc->vci);
9789c54004eSDavid Woodhouse header->type = cpu_to_le16(PKT_PCLOSE);
9799c54004eSDavid Woodhouse
9807ad3eadeSDavid Woodhouse skb_get(skb);
9817ad3eadeSDavid Woodhouse fpga_queue(card, port, skb, NULL);
9829c54004eSDavid Woodhouse
9837ad3eadeSDavid Woodhouse if (!wait_event_timeout(card->param_wq, !skb_shared(skb), 5 * HZ))
9847ad3eadeSDavid Woodhouse dev_warn(&card->dev->dev,
9857ad3eadeSDavid Woodhouse "Timeout waiting for VCC close on port %d\n", port);
9867ad3eadeSDavid Woodhouse
9877ad3eadeSDavid Woodhouse dev_kfree_skb(skb);
9887ad3eadeSDavid Woodhouse
9891f6ea6e5SDavid Woodhouse /* Hold up vcc_destroy_socket() (our caller) until solos_bh() in the
9901f6ea6e5SDavid Woodhouse tasklet has finished processing any incoming packets (and, more to
9911f6ea6e5SDavid Woodhouse the point, using the vcc pointer). */
9921f6ea6e5SDavid Woodhouse tasklet_unlock_wait(&card->tlet);
993213e85d3SDavid Woodhouse
994213e85d3SDavid Woodhouse clear_bit(ATM_VF_ADDR, &vcc->flags);
995213e85d3SDavid Woodhouse
9969c54004eSDavid Woodhouse return;
9979c54004eSDavid Woodhouse }
9989c54004eSDavid Woodhouse
print_buffer(struct sk_buff * buf)9999c54004eSDavid Woodhouse static int print_buffer(struct sk_buff *buf)
10009c54004eSDavid Woodhouse {
10019c54004eSDavid Woodhouse int len,i;
10029c54004eSDavid Woodhouse char msg[500];
10039c54004eSDavid Woodhouse char item[10];
10049c54004eSDavid Woodhouse
10059c54004eSDavid Woodhouse len = buf->len;
10069c54004eSDavid Woodhouse for (i = 0; i < len; i++){
10079c54004eSDavid Woodhouse if(i % 8 == 0)
10089c54004eSDavid Woodhouse sprintf(msg, "%02X: ", i);
10099c54004eSDavid Woodhouse
10109c54004eSDavid Woodhouse sprintf(item,"%02X ",*(buf->data + i));
10119c54004eSDavid Woodhouse strcat(msg, item);
10129c54004eSDavid Woodhouse if(i % 8 == 7) {
10139c54004eSDavid Woodhouse sprintf(item, "\n");
10149c54004eSDavid Woodhouse strcat(msg, item);
10159c54004eSDavid Woodhouse printk(KERN_DEBUG "%s", msg);
10169c54004eSDavid Woodhouse }
10179c54004eSDavid Woodhouse }
10189c54004eSDavid Woodhouse if (i % 8 != 0) {
10199c54004eSDavid Woodhouse sprintf(item, "\n");
10209c54004eSDavid Woodhouse strcat(msg, item);
10219c54004eSDavid Woodhouse printk(KERN_DEBUG "%s", msg);
10229c54004eSDavid Woodhouse }
10239c54004eSDavid Woodhouse printk(KERN_DEBUG "\n");
10249c54004eSDavid Woodhouse
10259c54004eSDavid Woodhouse return 0;
10269c54004eSDavid Woodhouse }
10279c54004eSDavid Woodhouse
fpga_queue(struct solos_card * card,int port,struct sk_buff * skb,struct atm_vcc * vcc)10289c54004eSDavid Woodhouse static void fpga_queue(struct solos_card *card, int port, struct sk_buff *skb,
10299c54004eSDavid Woodhouse struct atm_vcc *vcc)
10309c54004eSDavid Woodhouse {
10319c54004eSDavid Woodhouse int old_len;
1032f69e4170SDavid Woodhouse unsigned long flags;
10339c54004eSDavid Woodhouse
103490937231SDavid Woodhouse SKB_CB(skb)->vcc = vcc;
10359c54004eSDavid Woodhouse
1036f69e4170SDavid Woodhouse spin_lock_irqsave(&card->tx_queue_lock, flags);
10379c54004eSDavid Woodhouse old_len = skb_queue_len(&card->tx_queue[port]);
10389c54004eSDavid Woodhouse skb_queue_tail(&card->tx_queue[port], skb);
103935c2221bSDavid Woodhouse if (!old_len)
1040f69e4170SDavid Woodhouse card->tx_mask |= (1 << port);
1041f69e4170SDavid Woodhouse spin_unlock_irqrestore(&card->tx_queue_lock, flags);
10429c54004eSDavid Woodhouse
1043f69e4170SDavid Woodhouse /* Theoretically we could just schedule the tasklet here, but
1044f69e4170SDavid Woodhouse that introduces latency we don't want -- it's noticeable */
10459c54004eSDavid Woodhouse if (!old_len)
10469c54004eSDavid Woodhouse fpga_tx(card);
10479c54004eSDavid Woodhouse }
10489c54004eSDavid Woodhouse
fpga_tx(struct solos_card * card)104935c2221bSDavid Woodhouse static uint32_t fpga_tx(struct solos_card *card)
10509c54004eSDavid Woodhouse {
105135c2221bSDavid Woodhouse uint32_t tx_pending, card_flags;
10529c54004eSDavid Woodhouse uint32_t tx_started = 0;
10539c54004eSDavid Woodhouse struct sk_buff *skb;
10549c54004eSDavid Woodhouse struct atm_vcc *vcc;
10559c54004eSDavid Woodhouse unsigned char port;
10569c54004eSDavid Woodhouse unsigned long flags;
10579c54004eSDavid Woodhouse
10589c54004eSDavid Woodhouse spin_lock_irqsave(&card->tx_lock, flags);
10599c54004eSDavid Woodhouse
106035c2221bSDavid Woodhouse card_flags = ioread32(card->config_regs + FLAGS_ADDR);
106135c2221bSDavid Woodhouse /*
106235c2221bSDavid Woodhouse * The queue lock is required for _writing_ to tx_mask, but we're
106335c2221bSDavid Woodhouse * OK to read it here without locking. The only potential update
106435c2221bSDavid Woodhouse * that we could race with is in fpga_queue() where it sets a bit
106535c2221bSDavid Woodhouse * for a new port... but it's going to call this function again if
106635c2221bSDavid Woodhouse * it's doing that, anyway.
106735c2221bSDavid Woodhouse */
106835c2221bSDavid Woodhouse tx_pending = card->tx_mask & ~card_flags;
10699c54004eSDavid Woodhouse
107035c2221bSDavid Woodhouse for (port = 0; tx_pending; tx_pending >>= 1, port++) {
107135c2221bSDavid Woodhouse if (tx_pending & 1) {
1072eaf83e39SDavid Woodhouse struct sk_buff *oldskb = card->tx_skb[port];
1073cae49edeSDavid Woodhouse if (oldskb) {
1074ede58ef2Schas williams - CONTRACTOR dma_unmap_single(&card->dev->dev, SKB_CB(oldskb)->dma_addr,
1075ede58ef2Schas williams - CONTRACTOR oldskb->len, DMA_TO_DEVICE);
1076cae49edeSDavid Woodhouse card->tx_skb[port] = NULL;
1077cae49edeSDavid Woodhouse }
10789c54004eSDavid Woodhouse spin_lock(&card->tx_queue_lock);
10799c54004eSDavid Woodhouse skb = skb_dequeue(&card->tx_queue[port]);
1080f69e4170SDavid Woodhouse if (!skb)
1081f69e4170SDavid Woodhouse card->tx_mask &= ~(1 << port);
10829c54004eSDavid Woodhouse spin_unlock(&card->tx_queue_lock);
10839c54004eSDavid Woodhouse
1084eaf83e39SDavid Woodhouse if (skb && !card->using_dma) {
1085eaf83e39SDavid Woodhouse memcpy_toio(TX_BUF(card, port), skb->data, skb->len);
1086bdc54625SDavid Woodhouse tx_started |= 1 << port;
1087eaf83e39SDavid Woodhouse oldskb = skb; /* We're done with this skb already */
1088eaf83e39SDavid Woodhouse } else if (skb && card->using_dma) {
1089152a2a8bSDavid Woodhouse unsigned char *data = skb->data;
1090152a2a8bSDavid Woodhouse if ((unsigned long)data & card->dma_alignment) {
1091152a2a8bSDavid Woodhouse data = card->dma_bounce + (BUF_SIZE * port);
1092152a2a8bSDavid Woodhouse memcpy(data, skb->data, skb->len);
1093152a2a8bSDavid Woodhouse }
1094ede58ef2Schas williams - CONTRACTOR SKB_CB(skb)->dma_addr = dma_map_single(&card->dev->dev, data,
1095ede58ef2Schas williams - CONTRACTOR skb->len, DMA_TO_DEVICE);
1096b4bd8ad9SDavid Woodhouse card->tx_skb[port] = skb;
1097eaf83e39SDavid Woodhouse iowrite32(SKB_CB(skb)->dma_addr,
1098eaf83e39SDavid Woodhouse card->config_regs + TX_DMA_ADDR(port));
1099eaf83e39SDavid Woodhouse }
1100eaf83e39SDavid Woodhouse
1101eaf83e39SDavid Woodhouse if (!oldskb)
11029c54004eSDavid Woodhouse continue;
11039c54004eSDavid Woodhouse
1104eaf83e39SDavid Woodhouse /* Clean up and free oldskb now it's gone */
11059c54004eSDavid Woodhouse if (atmdebug) {
110618b429e7SPhilip A. Prindeville struct pkt_hdr *header = (void *)oldskb->data;
110718b429e7SPhilip A. Prindeville int size = le16_to_cpu(header->size);
110818b429e7SPhilip A. Prindeville
110918b429e7SPhilip A. Prindeville skb_pull(oldskb, sizeof(*header));
11109c54004eSDavid Woodhouse dev_info(&card->dev->dev, "Transmitted: port %d\n",
11119c54004eSDavid Woodhouse port);
111218b429e7SPhilip A. Prindeville dev_info(&card->dev->dev, "size: %d VPI: %d VCI: %d\n",
111318b429e7SPhilip A. Prindeville size, le16_to_cpu(header->vpi),
111418b429e7SPhilip A. Prindeville le16_to_cpu(header->vci));
1115eaf83e39SDavid Woodhouse print_buffer(oldskb);
11169c54004eSDavid Woodhouse }
11179c54004eSDavid Woodhouse
111890937231SDavid Woodhouse vcc = SKB_CB(oldskb)->vcc;
11199c54004eSDavid Woodhouse
11209c54004eSDavid Woodhouse if (vcc) {
11219c54004eSDavid Woodhouse atomic_inc(&vcc->stats->tx);
112290937231SDavid Woodhouse solos_pop(vcc, oldskb);
11237ad3eadeSDavid Woodhouse } else {
112490937231SDavid Woodhouse dev_kfree_skb_irq(oldskb);
11257ad3eadeSDavid Woodhouse wake_up(&card->param_wq);
11267ad3eadeSDavid Woodhouse }
11279c54004eSDavid Woodhouse }
11289c54004eSDavid Woodhouse }
1129bdc54625SDavid Woodhouse /* For non-DMA TX, write the 'TX start' bit for all four ports simultaneously */
11309c54004eSDavid Woodhouse if (tx_started)
11319c54004eSDavid Woodhouse iowrite32(tx_started, card->config_regs + FLAGS_ADDR);
11329c54004eSDavid Woodhouse
11339c54004eSDavid Woodhouse spin_unlock_irqrestore(&card->tx_lock, flags);
113435c2221bSDavid Woodhouse return card_flags;
11359c54004eSDavid Woodhouse }
11369c54004eSDavid Woodhouse
psend(struct atm_vcc * vcc,struct sk_buff * skb)11379c54004eSDavid Woodhouse static int psend(struct atm_vcc *vcc, struct sk_buff *skb)
11389c54004eSDavid Woodhouse {
11399c54004eSDavid Woodhouse struct solos_card *card = vcc->dev->dev_data;
11409c54004eSDavid Woodhouse struct pkt_hdr *header;
1141b76811afSDavid Woodhouse int pktlen;
11429c54004eSDavid Woodhouse
1143b76811afSDavid Woodhouse pktlen = skb->len;
1144b76811afSDavid Woodhouse if (pktlen > (BUF_SIZE - sizeof(*header))) {
11459c54004eSDavid Woodhouse dev_warn(&card->dev->dev, "Length of PDU is too large. Dropping PDU.\n");
11469c54004eSDavid Woodhouse solos_pop(vcc, skb);
11479c54004eSDavid Woodhouse return 0;
11489c54004eSDavid Woodhouse }
11499c54004eSDavid Woodhouse
11509c54004eSDavid Woodhouse if (!skb_clone_writable(skb, sizeof(*header))) {
11519c54004eSDavid Woodhouse int expand_by = 0;
11529c54004eSDavid Woodhouse int ret;
11539c54004eSDavid Woodhouse
11549c54004eSDavid Woodhouse if (skb_headroom(skb) < sizeof(*header))
11559c54004eSDavid Woodhouse expand_by = sizeof(*header) - skb_headroom(skb);
11569c54004eSDavid Woodhouse
11579c54004eSDavid Woodhouse ret = pskb_expand_head(skb, expand_by, 0, GFP_ATOMIC);
11589c54004eSDavid Woodhouse if (ret) {
11594306cad6SSimon Farnsworth dev_warn(&card->dev->dev, "pskb_expand_head failed.\n");
11609c54004eSDavid Woodhouse solos_pop(vcc, skb);
11619c54004eSDavid Woodhouse return ret;
11629c54004eSDavid Woodhouse }
11639c54004eSDavid Woodhouse }
11649c54004eSDavid Woodhouse
1165d58ff351SJohannes Berg header = skb_push(skb, sizeof(*header));
11669c54004eSDavid Woodhouse
1167b76811afSDavid Woodhouse /* This does _not_ include the size of the header */
1168b76811afSDavid Woodhouse header->size = cpu_to_le16(pktlen);
11699c54004eSDavid Woodhouse header->vpi = cpu_to_le16(vcc->vpi);
11709c54004eSDavid Woodhouse header->vci = cpu_to_le16(vcc->vci);
11719c54004eSDavid Woodhouse header->type = cpu_to_le16(PKT_DATA);
11729c54004eSDavid Woodhouse
11739c54004eSDavid Woodhouse fpga_queue(card, SOLOS_CHAN(vcc->dev), skb, vcc);
11749c54004eSDavid Woodhouse
11759c54004eSDavid Woodhouse return 0;
11769c54004eSDavid Woodhouse }
11779c54004eSDavid Woodhouse
117846c4b7a5SBhumika Goyal static const struct atmdev_ops fpga_ops = {
11799c54004eSDavid Woodhouse .open = popen,
11809c54004eSDavid Woodhouse .close = pclose,
11819c54004eSDavid Woodhouse .ioctl = NULL,
11829c54004eSDavid Woodhouse .send = psend,
11839c54004eSDavid Woodhouse .send_oam = NULL,
11849c54004eSDavid Woodhouse .phy_put = NULL,
11859c54004eSDavid Woodhouse .phy_get = NULL,
11869c54004eSDavid Woodhouse .change_qos = NULL,
11879c54004eSDavid Woodhouse .proc_read = NULL,
11889c54004eSDavid Woodhouse .owner = THIS_MODULE
11899c54004eSDavid Woodhouse };
11909c54004eSDavid Woodhouse
fpga_probe(struct pci_dev * dev,const struct pci_device_id * id)11919c54004eSDavid Woodhouse static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id)
11929c54004eSDavid Woodhouse {
1193cd5549e0SDavid Woodhouse int err;
11949c54004eSDavid Woodhouse uint16_t fpga_ver;
11959c54004eSDavid Woodhouse uint8_t major_ver, minor_ver;
11969c54004eSDavid Woodhouse uint32_t data32;
11979c54004eSDavid Woodhouse struct solos_card *card;
11989c54004eSDavid Woodhouse
11999c54004eSDavid Woodhouse card = kzalloc(sizeof(*card), GFP_KERNEL);
12009c54004eSDavid Woodhouse if (!card)
12019c54004eSDavid Woodhouse return -ENOMEM;
12029c54004eSDavid Woodhouse
12039c54004eSDavid Woodhouse card->dev = dev;
1204fa755b9fSDavid Woodhouse init_waitqueue_head(&card->fw_wq);
120501e2ffacSDavid Woodhouse init_waitqueue_head(&card->param_wq);
12069c54004eSDavid Woodhouse
12079c54004eSDavid Woodhouse err = pci_enable_device(dev);
12089c54004eSDavid Woodhouse if (err) {
12099c54004eSDavid Woodhouse dev_warn(&dev->dev, "Failed to enable PCI device\n");
12109c54004eSDavid Woodhouse goto out;
12119c54004eSDavid Woodhouse }
12129c54004eSDavid Woodhouse
1213ede58ef2Schas williams - CONTRACTOR err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32));
121490937231SDavid Woodhouse if (err) {
121590937231SDavid Woodhouse dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n");
121690937231SDavid Woodhouse goto out;
121790937231SDavid Woodhouse }
121890937231SDavid Woodhouse
12199c54004eSDavid Woodhouse err = pci_request_regions(dev, "solos");
12209c54004eSDavid Woodhouse if (err) {
12219c54004eSDavid Woodhouse dev_warn(&dev->dev, "Failed to request regions\n");
12229c54004eSDavid Woodhouse goto out;
12239c54004eSDavid Woodhouse }
12249c54004eSDavid Woodhouse
12259c54004eSDavid Woodhouse card->config_regs = pci_iomap(dev, 0, CONFIG_RAM_SIZE);
12269c54004eSDavid Woodhouse if (!card->config_regs) {
12279c54004eSDavid Woodhouse dev_warn(&dev->dev, "Failed to ioremap config registers\n");
122873112f9bSJulia Lawall err = -ENOMEM;
12299c54004eSDavid Woodhouse goto out_release_regions;
12309c54004eSDavid Woodhouse }
12319c54004eSDavid Woodhouse card->buffers = pci_iomap(dev, 1, DATA_RAM_SIZE);
12329c54004eSDavid Woodhouse if (!card->buffers) {
12339c54004eSDavid Woodhouse dev_warn(&dev->dev, "Failed to ioremap data buffers\n");
123473112f9bSJulia Lawall err = -ENOMEM;
12359c54004eSDavid Woodhouse goto out_unmap_config;
12369c54004eSDavid Woodhouse }
12379c54004eSDavid Woodhouse
1238cc3657e1SDavid Woodhouse if (reset) {
1239cc3657e1SDavid Woodhouse iowrite32(1, card->config_regs + FPGA_MODE);
12401492a3a7SGustavo A. R. Silva ioread32(card->config_regs + FPGA_MODE);
12419c54004eSDavid Woodhouse
1242cc3657e1SDavid Woodhouse iowrite32(0, card->config_regs + FPGA_MODE);
12431492a3a7SGustavo A. R. Silva ioread32(card->config_regs + FPGA_MODE);
1244cc3657e1SDavid Woodhouse }
12459c54004eSDavid Woodhouse
12469c54004eSDavid Woodhouse data32 = ioread32(card->config_regs + FPGA_VER);
12479c54004eSDavid Woodhouse fpga_ver = (data32 & 0x0000FFFF);
12489c54004eSDavid Woodhouse major_ver = ((data32 & 0xFF000000) >> 24);
12499c54004eSDavid Woodhouse minor_ver = ((data32 & 0x00FF0000) >> 16);
12504dbedf43SNathan Williams card->fpga_version = FPGA_VERSION(major_ver,minor_ver);
12514dbedf43SNathan Williams if (card->fpga_version > LEGACY_BUFFERS)
12524dbedf43SNathan Williams card->buffer_size = BUF_SIZE;
12534dbedf43SNathan Williams else
12544dbedf43SNathan Williams card->buffer_size = OLD_BUF_SIZE;
12559c54004eSDavid Woodhouse dev_info(&dev->dev, "Solos FPGA Version %d.%02d svn-%d\n",
12569c54004eSDavid Woodhouse major_ver, minor_ver, fpga_ver);
12579c54004eSDavid Woodhouse
12583ce1227cSDavid Woodhouse if (fpga_ver < 37 && (fpga_upgrade || firmware_upgrade ||
12593ce1227cSDavid Woodhouse db_fpga_upgrade || db_firmware_upgrade)) {
12603ce1227cSDavid Woodhouse dev_warn(&dev->dev,
12613ce1227cSDavid Woodhouse "FPGA too old; cannot upgrade flash. Use JTAG.\n");
12623ce1227cSDavid Woodhouse fpga_upgrade = firmware_upgrade = 0;
12633ce1227cSDavid Woodhouse db_fpga_upgrade = db_firmware_upgrade = 0;
12643ce1227cSDavid Woodhouse }
12653ce1227cSDavid Woodhouse
126613af8164SNathan Williams /* Stopped using Atmel flash after 0.03-38 */
126713af8164SNathan Williams if (fpga_ver < 39)
126813af8164SNathan Williams card->atmel_flash = 1;
126913af8164SNathan Williams else
127013af8164SNathan Williams card->atmel_flash = 0;
127113af8164SNathan Williams
1272152a2a8bSDavid Woodhouse data32 = ioread32(card->config_regs + PORTS);
1273152a2a8bSDavid Woodhouse card->nr_ports = (data32 & 0x000000FF);
1274152a2a8bSDavid Woodhouse
12754dbedf43SNathan Williams if (card->fpga_version >= DMA_SUPPORTED) {
1276b4bd8ad9SDavid Woodhouse pci_set_master(dev);
127790937231SDavid Woodhouse card->using_dma = 1;
1278152a2a8bSDavid Woodhouse if (1) { /* All known FPGA versions so far */
1279152a2a8bSDavid Woodhouse card->dma_alignment = 3;
12806da2ec56SKees Cook card->dma_bounce = kmalloc_array(card->nr_ports,
12816da2ec56SKees Cook BUF_SIZE, GFP_KERNEL);
1282152a2a8bSDavid Woodhouse if (!card->dma_bounce) {
1283152a2a8bSDavid Woodhouse dev_warn(&card->dev->dev, "Failed to allocate DMA bounce buffers\n");
1284c7bcae46SJulia Lawall err = -ENOMEM;
1285152a2a8bSDavid Woodhouse /* Fallback to MMIO doesn't work */
1286152a2a8bSDavid Woodhouse goto out_unmap_both;
1287152a2a8bSDavid Woodhouse }
1288152a2a8bSDavid Woodhouse }
12894dbedf43SNathan Williams } else {
12904dbedf43SNathan Williams card->using_dma = 0;
1291eab50f73SDavid Woodhouse /* Set RX empty flag for all ports */
1292eab50f73SDavid Woodhouse iowrite32(0xF0, card->config_regs + FLAGS_ADDR);
1293eab50f73SDavid Woodhouse }
12949c54004eSDavid Woodhouse
12959c54004eSDavid Woodhouse pci_set_drvdata(dev, card);
1296fa755b9fSDavid Woodhouse
12979c54004eSDavid Woodhouse tasklet_init(&card->tlet, solos_bh, (unsigned long)card);
12989c54004eSDavid Woodhouse spin_lock_init(&card->tx_lock);
12999c54004eSDavid Woodhouse spin_lock_init(&card->tx_queue_lock);
13009c54004eSDavid Woodhouse spin_lock_init(&card->cli_queue_lock);
130101e2ffacSDavid Woodhouse spin_lock_init(&card->param_queue_lock);
130201e2ffacSDavid Woodhouse INIT_LIST_HEAD(&card->param_queue);
13039c54004eSDavid Woodhouse
1304fcd82664SDavid Woodhouse err = request_irq(dev->irq, solos_irq, IRQF_SHARED,
13059c54004eSDavid Woodhouse "solos-pci", card);
1306fa755b9fSDavid Woodhouse if (err) {
13079c54004eSDavid Woodhouse dev_dbg(&card->dev->dev, "Failed to request interrupt IRQ: %d\n", dev->irq);
1308fa755b9fSDavid Woodhouse goto out_unmap_both;
1309fa755b9fSDavid Woodhouse }
13109c54004eSDavid Woodhouse
13119c54004eSDavid Woodhouse iowrite32(1, card->config_regs + IRQ_EN_ADDR);
13129c54004eSDavid Woodhouse
1313fa755b9fSDavid Woodhouse if (fpga_upgrade)
1314fa755b9fSDavid Woodhouse flash_upgrade(card, 0);
1315fa755b9fSDavid Woodhouse
1316fa755b9fSDavid Woodhouse if (firmware_upgrade)
1317fa755b9fSDavid Woodhouse flash_upgrade(card, 1);
1318fa755b9fSDavid Woodhouse
13194dbedf43SNathan Williams if (db_fpga_upgrade)
13204dbedf43SNathan Williams flash_upgrade(card, 2);
13214dbedf43SNathan Williams
13224dbedf43SNathan Williams if (db_firmware_upgrade)
13234dbedf43SNathan Williams flash_upgrade(card, 3);
13244dbedf43SNathan Williams
1325d9ca676bSDan Williams err = atm_init(card, &dev->dev);
1326fa755b9fSDavid Woodhouse if (err)
1327fa755b9fSDavid Woodhouse goto out_free_irq;
1328fa755b9fSDavid Woodhouse
1329f9baad02SNathan Williams if (card->fpga_version >= DMA_SUPPORTED &&
1330f9baad02SNathan Williams sysfs_create_group(&card->dev->dev.kobj, &gpio_attr_group))
1331f9baad02SNathan Williams dev_err(&card->dev->dev, "Could not register parameter group for GPIOs\n");
1332f9baad02SNathan Williams
13339c54004eSDavid Woodhouse return 0;
13349c54004eSDavid Woodhouse
1335fa755b9fSDavid Woodhouse out_free_irq:
1336fa755b9fSDavid Woodhouse iowrite32(0, card->config_regs + IRQ_EN_ADDR);
1337fa755b9fSDavid Woodhouse free_irq(dev->irq, card);
1338fa755b9fSDavid Woodhouse tasklet_kill(&card->tlet);
1339fa755b9fSDavid Woodhouse
13409c54004eSDavid Woodhouse out_unmap_both:
1341152a2a8bSDavid Woodhouse kfree(card->dma_bounce);
13429c54004eSDavid Woodhouse pci_iounmap(dev, card->buffers);
13438ae0cfeeSJulia Lawall out_unmap_config:
13448ae0cfeeSJulia Lawall pci_iounmap(dev, card->config_regs);
13459c54004eSDavid Woodhouse out_release_regions:
13469c54004eSDavid Woodhouse pci_release_regions(dev);
13479c54004eSDavid Woodhouse out:
1348bc111d57SJulia Lawall kfree(card);
13499c54004eSDavid Woodhouse return err;
13509c54004eSDavid Woodhouse }
13519c54004eSDavid Woodhouse
atm_init(struct solos_card * card,struct device * parent)1352d9ca676bSDan Williams static int atm_init(struct solos_card *card, struct device *parent)
13539c54004eSDavid Woodhouse {
13549c54004eSDavid Woodhouse int i;
13559c54004eSDavid Woodhouse
13569c54004eSDavid Woodhouse for (i = 0; i < card->nr_ports; i++) {
135787ebb186SDavid Woodhouse struct sk_buff *skb;
135887ebb186SDavid Woodhouse struct pkt_hdr *header;
135987ebb186SDavid Woodhouse
13609c54004eSDavid Woodhouse skb_queue_head_init(&card->tx_queue[i]);
13619c54004eSDavid Woodhouse skb_queue_head_init(&card->cli_queue[i]);
13629c54004eSDavid Woodhouse
1363d9ca676bSDan Williams card->atmdev[i] = atm_dev_register("solos-pci", parent, &fpga_ops, -1, NULL);
13649c54004eSDavid Woodhouse if (!card->atmdev[i]) {
13659c54004eSDavid Woodhouse dev_err(&card->dev->dev, "Could not register ATM device %d\n", i);
13669c54004eSDavid Woodhouse atm_remove(card);
13679c54004eSDavid Woodhouse return -ENODEV;
13689c54004eSDavid Woodhouse }
13699c54004eSDavid Woodhouse if (device_create_file(&card->atmdev[i]->class_dev, &dev_attr_console))
13709c54004eSDavid Woodhouse dev_err(&card->dev->dev, "Could not register console for ATM device %d\n", i);
1371d057f0a4SDavid Woodhouse if (sysfs_create_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group))
1372d057f0a4SDavid Woodhouse dev_err(&card->dev->dev, "Could not register parameter group for ATM device %d\n", i);
13739c54004eSDavid Woodhouse
13749c54004eSDavid Woodhouse dev_info(&card->dev->dev, "Registered ATM device %d\n", card->atmdev[i]->number);
13759c54004eSDavid Woodhouse
13769c54004eSDavid Woodhouse card->atmdev[i]->ci_range.vpi_bits = 8;
13779c54004eSDavid Woodhouse card->atmdev[i]->ci_range.vci_bits = 16;
13789c54004eSDavid Woodhouse card->atmdev[i]->dev_data = card;
13799c54004eSDavid Woodhouse card->atmdev[i]->phy_data = (void *)(unsigned long)i;
1380c031235bSPhilip A. Prindeville atm_dev_signal_change(card->atmdev[i], ATM_PHY_SIG_FOUND);
138187ebb186SDavid Woodhouse
1382a1db5c5bSDavid Woodhouse skb = alloc_skb(sizeof(*header), GFP_KERNEL);
138387ebb186SDavid Woodhouse if (!skb) {
138487ebb186SDavid Woodhouse dev_warn(&card->dev->dev, "Failed to allocate sk_buff in atm_init()\n");
138587ebb186SDavid Woodhouse continue;
138687ebb186SDavid Woodhouse }
138787ebb186SDavid Woodhouse
13884df864c1SJohannes Berg header = skb_put(skb, sizeof(*header));
138987ebb186SDavid Woodhouse
139087ebb186SDavid Woodhouse header->size = cpu_to_le16(0);
139187ebb186SDavid Woodhouse header->vpi = cpu_to_le16(0);
139287ebb186SDavid Woodhouse header->vci = cpu_to_le16(0);
139387ebb186SDavid Woodhouse header->type = cpu_to_le16(PKT_STATUS);
139487ebb186SDavid Woodhouse
139587ebb186SDavid Woodhouse fpga_queue(card, i, skb, NULL);
13969c54004eSDavid Woodhouse }
13979c54004eSDavid Woodhouse return 0;
13989c54004eSDavid Woodhouse }
13999c54004eSDavid Woodhouse
atm_remove(struct solos_card * card)14009c54004eSDavid Woodhouse static void atm_remove(struct solos_card *card)
14019c54004eSDavid Woodhouse {
14029c54004eSDavid Woodhouse int i;
14039c54004eSDavid Woodhouse
14049c54004eSDavid Woodhouse for (i = 0; i < card->nr_ports; i++) {
14059c54004eSDavid Woodhouse if (card->atmdev[i]) {
140697d759d3SDavid Woodhouse struct sk_buff *skb;
140797d759d3SDavid Woodhouse
14089c54004eSDavid Woodhouse dev_info(&card->dev->dev, "Unregistering ATM device %d\n", card->atmdev[i]->number);
1409c0fe3026SDavid Woodhouse
1410c0fe3026SDavid Woodhouse sysfs_remove_group(&card->atmdev[i]->class_dev.kobj, &solos_attr_group);
14119c54004eSDavid Woodhouse atm_dev_deregister(card->atmdev[i]);
141297d759d3SDavid Woodhouse
141397d759d3SDavid Woodhouse skb = card->rx_skb[i];
141497d759d3SDavid Woodhouse if (skb) {
1415ede58ef2Schas williams - CONTRACTOR dma_unmap_single(&card->dev->dev, SKB_CB(skb)->dma_addr,
1416ede58ef2Schas williams - CONTRACTOR RX_DMA_SIZE, DMA_FROM_DEVICE);
141797d759d3SDavid Woodhouse dev_kfree_skb(skb);
141897d759d3SDavid Woodhouse }
141997d759d3SDavid Woodhouse skb = card->tx_skb[i];
142097d759d3SDavid Woodhouse if (skb) {
1421ede58ef2Schas williams - CONTRACTOR dma_unmap_single(&card->dev->dev, SKB_CB(skb)->dma_addr,
1422ede58ef2Schas williams - CONTRACTOR skb->len, DMA_TO_DEVICE);
142397d759d3SDavid Woodhouse dev_kfree_skb(skb);
142497d759d3SDavid Woodhouse }
142597d759d3SDavid Woodhouse while ((skb = skb_dequeue(&card->tx_queue[i])))
142697d759d3SDavid Woodhouse dev_kfree_skb(skb);
142797d759d3SDavid Woodhouse
14289c54004eSDavid Woodhouse }
14299c54004eSDavid Woodhouse }
14309c54004eSDavid Woodhouse }
14319c54004eSDavid Woodhouse
fpga_remove(struct pci_dev * dev)14329c54004eSDavid Woodhouse static void fpga_remove(struct pci_dev *dev)
14339c54004eSDavid Woodhouse {
14349c54004eSDavid Woodhouse struct solos_card *card = pci_get_drvdata(dev);
14359c54004eSDavid Woodhouse
143697d759d3SDavid Woodhouse /* Disable IRQs */
143797d759d3SDavid Woodhouse iowrite32(0, card->config_regs + IRQ_EN_ADDR);
143897d759d3SDavid Woodhouse
143997d759d3SDavid Woodhouse /* Reset FPGA */
144097d759d3SDavid Woodhouse iowrite32(1, card->config_regs + FPGA_MODE);
144197d759d3SDavid Woodhouse (void)ioread32(card->config_regs + FPGA_MODE);
14429c54004eSDavid Woodhouse
1443f9baad02SNathan Williams if (card->fpga_version >= DMA_SUPPORTED)
1444f9baad02SNathan Williams sysfs_remove_group(&card->dev->dev.kobj, &gpio_attr_group);
1445f9baad02SNathan Williams
14469c54004eSDavid Woodhouse atm_remove(card);
14479c54004eSDavid Woodhouse
14489c54004eSDavid Woodhouse free_irq(dev->irq, card);
14499c54004eSDavid Woodhouse tasklet_kill(&card->tlet);
14509c54004eSDavid Woodhouse
1451152a2a8bSDavid Woodhouse kfree(card->dma_bounce);
1452152a2a8bSDavid Woodhouse
145397d759d3SDavid Woodhouse /* Release device from reset */
145497d759d3SDavid Woodhouse iowrite32(0, card->config_regs + FPGA_MODE);
145597d759d3SDavid Woodhouse (void)ioread32(card->config_regs + FPGA_MODE);
145697d759d3SDavid Woodhouse
14579c54004eSDavid Woodhouse pci_iounmap(dev, card->buffers);
14589c54004eSDavid Woodhouse pci_iounmap(dev, card->config_regs);
14599c54004eSDavid Woodhouse
14609c54004eSDavid Woodhouse pci_release_regions(dev);
14619c54004eSDavid Woodhouse pci_disable_device(dev);
14629c54004eSDavid Woodhouse
14639c54004eSDavid Woodhouse kfree(card);
14649c54004eSDavid Woodhouse }
14659c54004eSDavid Woodhouse
14666d6148b3SArvind Yadav static const struct pci_device_id fpga_pci_tbl[] = {
14679c54004eSDavid Woodhouse { 0x10ee, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
14689c54004eSDavid Woodhouse { 0, }
14699c54004eSDavid Woodhouse };
14709c54004eSDavid Woodhouse
14719c54004eSDavid Woodhouse MODULE_DEVICE_TABLE(pci,fpga_pci_tbl);
14729c54004eSDavid Woodhouse
14739c54004eSDavid Woodhouse static struct pci_driver fpga_driver = {
14749c54004eSDavid Woodhouse .name = "solos",
14759c54004eSDavid Woodhouse .id_table = fpga_pci_tbl,
14769c54004eSDavid Woodhouse .probe = fpga_probe,
14779c54004eSDavid Woodhouse .remove = fpga_remove,
14789c54004eSDavid Woodhouse };
14799c54004eSDavid Woodhouse
14809c54004eSDavid Woodhouse
solos_pci_init(void)14819c54004eSDavid Woodhouse static int __init solos_pci_init(void)
14829c54004eSDavid Woodhouse {
14837ad3eadeSDavid Woodhouse BUILD_BUG_ON(sizeof(struct solos_skb_cb) > sizeof(((struct sk_buff *)0)->cb));
14847ad3eadeSDavid Woodhouse
14859c54004eSDavid Woodhouse printk(KERN_INFO "Solos PCI Driver Version %s\n", VERSION);
14869c54004eSDavid Woodhouse return pci_register_driver(&fpga_driver);
14879c54004eSDavid Woodhouse }
14889c54004eSDavid Woodhouse
solos_pci_exit(void)14899c54004eSDavid Woodhouse static void __exit solos_pci_exit(void)
14909c54004eSDavid Woodhouse {
14919c54004eSDavid Woodhouse pci_unregister_driver(&fpga_driver);
14929c54004eSDavid Woodhouse printk(KERN_INFO "Solos PCI Driver %s Unloaded\n", VERSION);
14939c54004eSDavid Woodhouse }
14949c54004eSDavid Woodhouse
14959c54004eSDavid Woodhouse module_init(solos_pci_init);
14969c54004eSDavid Woodhouse module_exit(solos_pci_exit);
1497