diff options
Diffstat (limited to 'package/lqtapi/src/mps/vmmc-core.c')
| -rw-r--r-- | package/lqtapi/src/mps/vmmc-core.c | 646 |
1 files changed, 646 insertions, 0 deletions
diff --git a/package/lqtapi/src/mps/vmmc-core.c b/package/lqtapi/src/mps/vmmc-core.c new file mode 100644 index 0000000000..99b0d1d3db --- /dev/null +++ b/package/lqtapi/src/mps/vmmc-core.c @@ -0,0 +1,646 @@ +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/interrupt.h> + +#include <linux/firmware.h> + +#include <linux/delay.h> + +#include <ifxmips_gptu.h> + +#include <linux/tapi/tapi.h> + +#include "vmmc.h" +#include "mps.h" +#include "mps-msg.h" +#include "mps-irq.h" +#include "vmmc-cmds.h" + +#include "vmmc-port.h" +#include "vmmc-stream.h" +#include "vmmc-link.h" +#include "vmmc-coder.h" + +struct vmmc_capabilities { + uint8_t num_alm; + uint8_t num_pcm; + uint8_t num_signal; + uint8_t num_coder; + uint8_t num_agc; + uint8_t num_eq; + uint8_t num_nlec; + uint8_t num_wlec; + uint8_t num_nwlec; + uint8_t num_wwlec; + uint8_t num_tone_generators; + uint8_t num_dtmf_generators; + uint8_t num_caller_id_senders; + uint8_t num_caller_id_recivers; +}; + +#define MPS_FIRMWARE_MAGIC 0xcc123456 + +struct vmmc_firmware_head { + uint32_t crc; + uint32_t crc_start_addr; + uint32_t crc_end_addr; + uint32_t version; + uint32_t encrypted; + uint32_t magic; + uint32_t mem; +} __packed; + +#define VMMC_FIFO_UPSTREAM_CMD_BASE_ADDR 0x00 +#define VMMC_FIFO_UPSTREAM_CMD_SIZE_ADDR 0x04 +#define VMMC_FIFO_DOWNSTREAM_CMD_BASE_ADDR 0x08 +#define VMMC_FIFO_DOWNSTREAM_CMD_SIZE_ADDR 0x0c +#define VMMC_FIFO_UPSTREAM_DATA_BASE_ADDR 0x10 +#define VMMC_FIFO_UPSTREAM_DATA_SIZE_ADDR 0x14 +#define VMMC_FIFO_DOWNSTREAM_DATA_BASE_ADDR 0x18 +#define VMMC_FIFO_DOWNSTREAM_DATA_SIZE_ADDR 0x1c +#define VMMC_FIFO_UPSTREAM_CMD_TAIL_ADDR 0x20 +#define VMMC_FIFO_UPSTREAM_CMD_HEAD_ADDR 0x24 +#define VMMC_FIFO_DOWNSTREAM_CMD_TAIL_ADDR 0x28 +#define VMMC_FIFO_DOWNSTREAM_CMD_HEAD_ADDR 0x2c +#define VMMC_FIFO_UPSTREAM_DATA_TAIL_ADDR 0x30 +#define VMMC_FIFO_UPSTREAM_DATA_HEAD_ADDR 0x34 +#define VMMC_FIFO_DOWNSTREAM_DATA_TAIL_ADDR 0x38 +#define VMMC_FIFO_DOWNSTREAM_DATA_HEAD_ADDR 0x3c + +#define VMMC_FIFO_EVENT_BASE_ADDR 0x180 +#define VMMC_FIFO_EVENT_SIZE_ADDR 0x184 +#define VMMC_FIFO_EVENT_TAIL_ADDR 0x188 +#define VMMC_FIFO_EVENT_HEAD_ADDR 0x18c + + +/* Calculates the base of the fifo behind the given fifo */ +#define VMMC_NEXT_FIFO_BASE0(_fifo) \ + (VMMC_FIFO_ ## _fifo ## _BASE + VMMC_FIFO_ ## _fifo ## _SIZE) +#define VMMC_NEXT_FIFO_BASE1(_fifo) \ + (VMMC_FIFO_ ## _fifo ## _BASE + VMMC_FIFO_ ## _fifo ## _SIZE) +#define VMMC_NEXT_FIFO_BASE2(_fifo) \ + (VMMC_FIFO_ ## _fifo ## _BASE + VMMC_FIFO_ ## _fifo ## _SIZE) + +/* Fifo sizes */ +#define VMMC_FIFO_UPSTREAM_CMD_SIZE 64 +#define VMMC_FIFO_DOWNSTREAM_CMD_SIZE 64 +#define VMMC_FIFO_UPSTREAM_DATA_SIZE 64 +#define VMMC_FIFO_DOWNSTREAM_DATA_SIZE 128 +#define VMMC_FIFO_EVENT_SIZE 64 + +/* Fifo addresses */ +#define VMMC_FIFO_UPSTREAM_CMD_BASE 0x40 +#define VMMC_FIFO_DOWNSTREAM_CMD_BASE VMMC_NEXT_FIFO_BASE0(UPSTREAM_CMD) +#define VMMC_FIFO_UPSTREAM_DATA_BASE VMMC_NEXT_FIFO_BASE1(DOWNSTREAM_CMD) +#define VMMC_FIFO_DOWNSTREAM_DATA_BASE VMMC_NEXT_FIFO_BASE2(UPSTREAM_DATA) +#define VMMC_FIFO_EVENT_BASE 0x190 + +#define VMMC_DECLARE_FIFO_CONFIG(_name, _fifo) \ +static const struct mps_fifo_config _name = { \ + .tail_addr = VMMC_FIFO_ ## _fifo ## _TAIL_ADDR, \ + .head_addr = VMMC_FIFO_ ## _fifo ## _HEAD_ADDR, \ + .base_addr = VMMC_FIFO_ ## _fifo ## _BASE_ADDR, \ + .size_addr = VMMC_FIFO_ ## _fifo ## _SIZE_ADDR, \ + .base = VMMC_FIFO_ ## _fifo ## _BASE, \ + .size = VMMC_FIFO_ ## _fifo ## _SIZE, \ +} + +VMMC_DECLARE_FIFO_CONFIG(vmmc_fifo_config_upstream_cmd, UPSTREAM_CMD); +VMMC_DECLARE_FIFO_CONFIG(vmmc_fifo_config_downstream_cmd, DOWNSTREAM_CMD); +VMMC_DECLARE_FIFO_CONFIG(vmmc_fifo_config_upstream_data, UPSTREAM_DATA); +VMMC_DECLARE_FIFO_CONFIG(vmmc_fifo_config_downstream_data, DOWNSTREAM_DATA); +VMMC_DECLARE_FIFO_CONFIG(vmmc_fifo_config_event, EVENT); + +static void vmmc_setup_fifos(struct vmmc *vmmc) +{ + mps_configure_mailbox(vmmc->mps, &vmmc->mbox_cmd, + &vmmc_fifo_config_upstream_cmd, &vmmc_fifo_config_downstream_cmd); + mps_configure_mailbox(vmmc->mps, &vmmc->mbox_data, + &vmmc_fifo_config_upstream_data, &vmmc_fifo_config_downstream_data); + + mps_configure_fifo(vmmc->mps, &vmmc->fifo_event, &vmmc_fifo_config_event); +} + +static uint32_t cram_data[] = { +0x00200000, 0x00008e59, 0x165235cd, 0x17e2f141, 0xe3eef301, 0x0a431281, +0x04fdf20d, 0x7fe363d5, 0xfd4b7333, 0x7ffffd44, 0xfcf80298, 0xfecd00c9, +0xff900042, 0xfff70003, 0x000923b7, 0xe92a354d, 0xc8981f44, 0x9c0f1257, +0x26aacf33, 0x27db9836, 0x10586f5b, 0x9c167d2d, 0x94b679a7, 0x8c227660, +0x83fa7491, 0x7ce0826a, 0x7ff87ff4, 0x296b4e22, 0x76e67fff, 0x008ffc04, +0x02cbfb36, 0x026afeba, 0x009effc3, 0x0013fffd, 0x23b7e92a, 0x354dc898, +0x1f449c0f, 0x125726aa, 0xcf3327db, 0x98361058, 0x74bc93d6, 0x7ebc8f61, +0x7d068986, 0x7b46833b, 0x7a3b7f00, 0x287a47b1, 0x05800367, 0x20ae2715, +0x0fb5da12, 0x1935f53b, 0x01230240, 0xfc717f00, 0x2000d346, +}; + +static void vmmc_push_data_paket(struct vmmc *vmmc, int type, unsigned int chan, + void __iomem *addr, size_t len) +{ + uint32_t data[3]; + + data[0] = VMMC_VOICE_DATA(type, chan, 8); + data[1] = CPHYSADDR(addr); + data[2] = len; + + mps_fifo_in(&vmmc->mbox_data.downstream, data, 3); +} + +static struct sk_buff *vmmc_alloc_data_paket(struct vmmc *vmmc) +{ + struct sk_buff *skb; + + skb = alloc_skb(512, GFP_KERNEL); + + skb_queue_tail(&vmmc->recv_queue, skb); + + return skb; +} + +static void vmmc_provide_paket(struct vmmc *vmmc) +{ + struct sk_buff *skb = vmmc_alloc_data_paket(vmmc); + vmmc_push_data_paket(vmmc, CMD_ADDRESS_PACKET, 0, skb->data, skb->len); +} + +static void vmmc_recv_paket(struct vmmc *vmmc, unsigned int chan, void __iomem *addr, size_t len) +{ + struct sk_buff *skb; + struct sk_buff *tmp; + + skb_queue_walk_safe(&vmmc->recv_queue, skb, tmp) { + if (skb->data == addr) + break; + } + + if (skb == (struct sk_buff *)(&vmmc->recv_queue)) { + printk("AHHHH\n"); + return; + } + + dma_cache_inv((u32)addr, len); + skb_unlink(skb, &vmmc->recv_queue); + + if (!vmmc->coder[chan].stream) { + kfree_skb(skb); + return; + } + + skb_put(skb, len); + tapi_stream_recv(&vmmc->tdev, vmmc->coder[chan].stream, skb); +} + +void vmmc_send_paket(struct vmmc *vmmc, unsigned int chan, struct sk_buff *skb) +{ + skb_queue_tail(&vmmc->send_queue, skb); + + dma_cache_wback((u32)skb->data, skb->len); + vmmc_push_data_paket(vmmc, CMD_RTP_VOICE_DATA_PACKET, chan, skb->data, + skb->len); +} + +static void vmmc_free_paket(struct vmmc *vmmc, void __iomem *addr, size_t len) +{ + struct sk_buff *skb; + struct sk_buff *tmp; + + skb_queue_walk_safe(&vmmc->send_queue, skb, tmp) { + if (skb->data == addr) + break; + } + + if (skb == (struct sk_buff *)(&vmmc->send_queue)) { + printk("AHHHH\n"); + } else { + skb_unlink(skb, &vmmc->send_queue); + kfree_skb(skb); + } +} + + +static void vmmc_write_cram_data(struct vmmc *vmmc, unsigned int id, + uint32_t *data, size_t length) +{ + size_t transfer_length; + size_t offset = 0; + uint32_t cmd; + + length *= 4; + offset = 0x5; + + while (length) { + transfer_length = length > 56 ? 56 : length; + cmd = VMMC_CMD_ALM_COEF(id, offset, transfer_length); + vmmc_command_write(vmmc, cmd, data); + + data += transfer_length >> 2; + offset += transfer_length >> 1; + length -= transfer_length; + } +} + +int vmmc_command_read(struct vmmc *vmmc, uint32_t cmd, uint32_t *result) +{ + struct mps_mailbox *mbox = &vmmc->mbox_cmd; + + INIT_COMPLETION(vmmc->cmd_completion); + + mps_fifo_in(&mbox->downstream, &cmd, 1); + + wait_for_completion(&vmmc->cmd_completion); + + mps_fifo_out(&mbox->upstream, result, 1); + mps_fifo_out(&mbox->upstream, result, (*result & 0xff) / 4); + + return 0; +} + +int vmmc_command_write(struct vmmc *vmmc, uint32_t cmd, + const uint32_t *data) +{ + struct mps_mailbox *mbox = &vmmc->mbox_cmd; +/* int i; + + printk("cmd: %x\n", cmd); + for (i = 0; i < DIV_ROUND_UP((cmd & 0xff), 4); ++i) { + printk("data[%d] = %x\n", i, data[i]); + } +*/ + while (mps_fifo_len(&mbox->downstream) < (cmd & 0xff) + 4) + mdelay(100); + + mps_fifo_in(&mbox->downstream, &cmd, 1); + mps_fifo_in(&mbox->downstream, data, DIV_ROUND_UP((cmd & 0xff), 4)); + + mdelay(100); + + return 0; +} + +static int vmmc_modules_sync(struct tapi_device *tapi) +{ + struct vmmc *vmmc = tdev_to_vmmc(tapi); + struct vmmc_module *module; + + list_for_each_entry(module, &vmmc->modules, head) + vmmc_module_sync(module); + + return 0; +} + +static const struct tapi_ops vmmc_tapi_ops = { + .send_dtmf_event = vmmc_port_send_dtmf_event, + .ring = vmmc_port_ring, + + .sync = vmmc_modules_sync, + + .stream_alloc = vmmc_stream_alloc, + .stream_free = vmmc_stream_free, + .stream_send = vmmc_stream_send, + + .link_alloc = vmmc_tapi_link_alloc, + .link_free = vmmc_tapi_link_free, + .link_enable = vmmc_tapi_link_enable, + .link_disable = vmmc_tapi_link_disable, +}; + +static void setup_alm(struct vmmc *vmmc) +{ + int i; + + vmmc->tdev.ports = kcalloc(2, sizeof(*vmmc->tdev.ports), GFP_KERNEL); + vmmc->ports = kcalloc(2, sizeof(*vmmc->ports), GFP_KERNEL); + + for (i = 0; i < 2; ++i) + vmmc_port_init(vmmc, &vmmc->ports[i], &vmmc->tdev.ports[i], i); + + skb_queue_head_init(&vmmc->send_queue); + skb_queue_head_init(&vmmc->recv_queue); + + for (i = 0; i < 10; ++i) + vmmc_provide_paket(vmmc); + + vmmc->tdev.num_ports = 2; + vmmc->tdev.ops = &vmmc_tapi_ops; + tapi_device_register(&vmmc->tdev, "vmmc", vmmc->dev); +} + +static void vmmc_init_timer(struct vmmc *vmmc) +{ + unsigned int timer; + unsigned int timer_flags; + int ret; + unsigned long loops, count; + + timer = TIMER1B; + + timer_flags = + TIMER_FLAG_16BIT | TIMER_FLAG_COUNTER | TIMER_FLAG_CYCLIC | + TIMER_FLAG_DOWN | TIMER_FLAG_FALL_EDGE | TIMER_FLAG_SYNC | + TIMER_FLAG_CALLBACK_IN_IRQ; + ret = ifxmips_request_timer (timer, timer_flags, 1, 0, 0); + if (ret < 0) { + printk("FAILED TO INIT TIMER\n"); + return; + } + ret = ifxmips_start_timer (timer, 0); + if (ret < 0) { + printk("FAILED TO START TIMER\n"); + return; + } + do + { + loops++; + ifxmips_get_count_value(timer, &count); + } while (count); + + *((volatile uint32_t *) (KSEG1 + 0x1e100a00 + 0x0014)) = 0x000005c5; +} + +static void vmmc_free_timer(struct vmmc *vmmc) +{ + ifxmips_free_timer(TIMER1B); +} + +static void vmmc_get_capabilities(struct vmmc *vmmc) +{ + uint32_t data[10]; + uint8_t len; + + vmmc_command_read(vmmc, + MPS_MSG_CMD_EOP_SYSTEM(SYS_CAP_ECMD, sizeof(uint32_t)), data); + + len = ((data[0] >> 16) & 0xff) - sizeof(uint32_t); + + if (len > sizeof(data)) + len = sizeof(data); + + vmmc_command_read(vmmc, + MPS_MSG_CMD_EOP_SYSTEM(SYS_CAP_ECMD, len), data); + + len /= 4; + +/* for (;len > 0; --len) { + printk("fw cap(%d): %.2x\n", 10-len, data[10-len]); + } +*/ + setup_alm(vmmc); +} + +static void vmmc_get_firmware_version(struct vmmc *vmmc) +{ + uint32_t data[1]; + + vmmc_command_read(vmmc, MPS_CMD_GET_VERSION, data); + + printk("firmware version: %x\n", *data); + + vmmc_get_capabilities(vmmc); +} + +static irqreturn_t vmmc_firmware_loaded_irq(int irq, void *devid) +{ + struct vmmc *vmmc = devid; + complete(&vmmc->firmware_loaded_completion); + printk("Firmware loaded irq\n"); + + return IRQ_HANDLED; +} + +static irqreturn_t vmmc_cmd_error_irq(int irq, void *devid) +{ +/* struct vmmc *vmmc = devid;*/ + + printk("cmd error!!!!\n"); + + return IRQ_HANDLED; +} + +static irqreturn_t vmmc_recv_ov_irq(int irq, void *devid) +{ + struct vmmc *vmmc = devid; + uint32_t data[2] = { + VMMC_CMD_SERR_ACK(0), + VMMC_CMD_SERR_ACK_DATA1(1) + }; + uint32_t voice_data[64]; + + return IRQ_HANDLED; + + mps_fifo_in(&vmmc->mbox_cmd.downstream, data, 2); + mps_fifo_out(&vmmc->mbox_data.upstream, voice_data, 15); + + printk("recv overflow: %x\n", voice_data[0]); + + return IRQ_HANDLED; +} + +static irqreturn_t vmmc_event_fifo_irq(int irq, void *devid) +{ + struct vmmc *vmmc = devid; + uint32_t event, event_id; + uint32_t data = 0; + unsigned int chan; + + mps_fifo_out(&vmmc->fifo_event, &event, 1); + + event_id = event & VMMC_EVENT_ID_MASK; + chan = VMMC_MSG_GET_CHAN(event); + + if (event & 0xff) + mps_fifo_out(&vmmc->fifo_event, &data, 1); + + switch (event_id) { + case VMMC_EVENT_HOOK_ID: + vmmc_alm_hook_event_handler(vmmc, chan, data); + break; + case VMMC_EVENT_DTMF_ID: + vmmc_sig_dtmf_event_handler(vmmc, chan, data); + break; + default: + printk("Ein unbekanntes Event: %x %x\n", event, data); + break; + } + + return IRQ_HANDLED; +} + +static irqreturn_t vmmc_mbox_data_irq_handler(int irq, void *devid) +{ + struct vmmc *vmmc = devid; + struct mps_mailbox *mbox = &vmmc->mbox_data; + unsigned int count, type, chan; + uint32_t data[2]; + void __iomem *addr; + size_t len; + + mps_fifo_out(&mbox->upstream, data, 1); + + count = (data[0] & 0xff) / 8; + type = (data[0] >> 24) & 0xff; + chan = (data[0] >> 16) & 0xff; + + while (count) { + mps_fifo_out(&mbox->upstream, data, 2); + + addr = (void __iomem *)CKSEG0ADDR(data[0]); + len = data[1]; + + switch (type) { + case CMD_ADDRESS_PACKET: + vmmc_free_paket(vmmc, addr, len); + break; + case CMD_RTP_VOICE_DATA_PACKET: + vmmc_provide_paket(vmmc); + vmmc_recv_paket(vmmc, chan, addr, len); + break; + } + --count; + } + + return IRQ_HANDLED; +} + +static irqreturn_t vmmc_mbox_cmd_irq_handler(int irq, void *devid) +{ + struct vmmc *vmmc = devid; + + complete(&vmmc->cmd_completion); + + return IRQ_HANDLED; +} + +static void vmmc_load_firmware(const struct firmware *fw, void *context) +{ + struct vmmc *vmmc = context; + struct vmmc_firmware_head *fw_head; + size_t tail_size; + enum mps_boot_config config; + + if (!fw) { + printk("failed to load tapi firmware\n"); +// request_firmware_nowait(THIS_MODULE, 1, "danube_firmware.bin", vmmc->dev, +// GFP_KERNEL, vmmc, vmmc_load_firmware); + return; + } + + if (fw->size < sizeof(*fw_head)) + return; + + fw_head = (struct vmmc_firmware_head *)((uint8_t *)fw->data + fw->size - sizeof(*fw_head)); + + if (fw_head->magic != MPS_FIRMWARE_MAGIC) { + config = MPS_BOOT_LEGACY; + tail_size = sizeof(uint32_t); + } else { + config = MPS_BOOT_ENCRYPTED; + tail_size = sizeof(*fw_head) - sizeof(uint32_t); + } + + vmmc_setup_fifos(vmmc); + init_completion(&vmmc->firmware_loaded_completion); + mps_load_firmware(vmmc->mps, fw->data, fw->size - tail_size, config); + wait_for_completion_timeout(&vmmc->firmware_loaded_completion, 5*HZ); + vmmc_init_timer(vmmc); + vmmc_write_cram_data(vmmc, 0, cram_data, ARRAY_SIZE(cram_data)); + vmmc_write_cram_data(vmmc, 1, cram_data, ARRAY_SIZE(cram_data)); + vmmc_get_firmware_version(vmmc); + vmmc_init_coders(vmmc); +} + +static int vmmc_request_irqs(struct vmmc *vmmc) +{ + int ret; + + ret = request_irq(vmmc->irq_fw_loaded, vmmc_firmware_loaded_irq, 0, "vmmc fw loaded", vmmc); + ret = request_irq(vmmc->irq_event_fifo, vmmc_event_fifo_irq, 0, "vmmc event fifo", vmmc); + ret = request_irq(vmmc->irq_cmd_error, vmmc_cmd_error_irq, 0, + "cmd error irq", vmmc); + ret = request_irq(MPS_IRQ_RCV_OVERFLOW, vmmc_recv_ov_irq, 0, + "recv_ov irq", vmmc); + + ret = request_irq(vmmc->irq_mbox_cmd, vmmc_mbox_cmd_irq_handler, 0, + "vmmc cmd mailbox irq", vmmc); + + ret = request_irq(vmmc->irq_mbox_data, vmmc_mbox_data_irq_handler, 0, + "vmmc data mailbox irq", vmmc); + + return ret; +} + +static int __devinit vmmc_probe(struct platform_device *pdev) +{ + struct vmmc *vmmc; + int ret = 0; + + vmmc = kzalloc(sizeof(*vmmc), GFP_KERNEL); + + if (!vmmc) + return -ENOMEM; + + vmmc->dev = &pdev->dev; + vmmc->mps = device_to_mps(pdev->dev.parent); + + if (!vmmc->mps) { + goto err_free; + ret = -EBUSY; + } + + INIT_LIST_HEAD(&vmmc->modules); + init_completion(&vmmc->cmd_completion); + + vmmc->irq_fw_loaded = MPS_IRQ_DOWNLOAD_DONE; + vmmc->irq_mbox_cmd = MPS_IRQ_CMD_UPSTREAM; + vmmc->irq_mbox_data = MPS_IRQ_DATA_UPSTREAM; + vmmc->irq_event_fifo = MPS_IRQ_EVENT; + vmmc->irq_cmd_error = MPS_IRQ_CMD_ERROR; + + platform_set_drvdata(pdev, vmmc); + + vmmc_request_irqs(vmmc); + + request_firmware_nowait(THIS_MODULE, 1, "danube_firmware.bin", &pdev->dev, + GFP_KERNEL, vmmc, vmmc_load_firmware); + + return 0; + +err_free: + kfree(vmmc); + + return ret; +} + +static int __devexit vmmc_remove(struct platform_device *pdev) +{ + struct vmmc *vmmc = platform_get_drvdata(pdev); + vmmc_free_timer(vmmc); + + tapi_device_unregister(&vmmc->tdev); + + return 0; +} + +static struct platform_driver vmmc_driver = { + .probe = vmmc_probe, + .remove = __devexit_p(vmmc_remove), + .driver = { + .name = "vmmc", + .owner = THIS_MODULE + }, +}; + +static int __init vmmc_init(void) +{ + return platform_driver_register(&vmmc_driver); +} +module_init(vmmc_init); + +static void __exit vmmc_exit(void) +{ + platform_driver_unregister(&vmmc_driver); +} +module_exit(vmmc_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); |