diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/lan9118.c | 94 |
1 files changed, 89 insertions, 5 deletions
diff --git a/hw/lan9118.c b/hw/lan9118.c index ba982d1110..16d33304d5 100644 --- a/hw/lan9118.c +++ b/hw/lan9118.c @@ -40,8 +40,8 @@ do { fprintf(stderr, "lan9118: error: " fmt , ## __VA_ARGS__);} while (0) #define CSR_TX_FIFO_INF 0x80 #define CSR_PMT_CTRL 0x84 #define CSR_GPIO_CFG 0x88 -#define CSR_GPT_CFG 0x8c /* TODO */ -#define CSR_GPT_CNT 0x90 /* TODO */ +#define CSR_GPT_CFG 0x8c +#define CSR_GPT_CNT 0x90 #define CSR_WORD_SWAP 0x98 #define CSR_FREE_RUN 0x9c #define CSR_RX_DROP 0xa0 @@ -52,6 +52,7 @@ do { fprintf(stderr, "lan9118: error: " fmt , ## __VA_ARGS__);} while (0) #define CSR_E2P_DATA 0xb4 /* IRQ_CFG */ +#define IRQ_INT 0x00001000 #define IRQ_EN 0x00000100 #define IRQ_POL 0x00000010 #define IRQ_TYPE 0x00000001 @@ -117,6 +118,16 @@ do { fprintf(stderr, "lan9118: error: " fmt , ## __VA_ARGS__);} while (0) #define MAC_CR_RXEN 0x00000004 #define MAC_CR_RESERVED 0x7f404213 +#define PHY_INT_ENERGYON 0x80 +#define PHY_INT_AUTONEG_COMPLETE 0x40 +#define PHY_INT_FAULT 0x20 +#define PHY_INT_DOWN 0x10 +#define PHY_INT_AUTONEG_LP 0x08 +#define PHY_INT_PARFAULT 0x04 +#define PHY_INT_AUTONEG_PAGE 0x02 + +#define GPT_TIMER_EN 0x20000000 + enum tx_state { TX_IDLE, TX_B, @@ -141,6 +152,7 @@ typedef struct { NICConf conf; qemu_irq irq; int mmio_index; + ptimer_state *timer; uint32_t irq_cfg; uint32_t int_sts; @@ -151,6 +163,7 @@ typedef struct { uint32_t hw_cfg; uint32_t pmt_ctrl; uint32_t gpio_cfg; + uint32_t gpt_cfg; uint32_t word_swap; uint32_t free_timer_start; uint32_t mac_cmd; @@ -169,6 +182,8 @@ typedef struct { uint32_t phy_status; uint32_t phy_control; uint32_t phy_advertise; + uint32_t phy_int; + uint32_t phy_int_mask; int eeprom_writable; uint8_t eeprom[8]; @@ -204,6 +219,11 @@ static void lan9118_update(lan9118_state *s) /* TODO: Implement FIFO level IRQs. */ level = (s->int_sts & s->int_en) != 0; + if (level) { + s->irq_cfg |= IRQ_INT; + } else { + s->irq_cfg &= ~IRQ_INT; + } if ((s->irq_cfg & IRQ_EN) == 0) { level = 0; } @@ -231,14 +251,28 @@ static void lan9118_reload_eeprom(lan9118_state *s) lan9118_mac_changed(s); } +static void phy_update_irq(lan9118_state *s) +{ + if (s->phy_int & s->phy_int_mask) { + s->int_sts |= PHY_INT; + } else { + s->int_sts &= ~PHY_INT; + } + lan9118_update(s); +} + static void phy_update_link(lan9118_state *s) { /* Autonegotiation status mirrors link status. */ if (s->nic->nc.link_down) { s->phy_status &= ~0x0024; + s->phy_int |= PHY_INT_DOWN; } else { s->phy_status |= 0x0024; + s->phy_int |= PHY_INT_ENERGYON; + s->phy_int |= PHY_INT_AUTONEG_COMPLETE; } + phy_update_irq(s); } static void lan9118_set_link(VLANClientState *nc) @@ -248,9 +282,11 @@ static void lan9118_set_link(VLANClientState *nc) static void phy_reset(lan9118_state *s) { - s->phy_status = 0x7805; + s->phy_status = 0x7809; s->phy_control = 0x3000; s->phy_advertise = 0x01e1; + s->phy_int_mask = 0; + s->phy_int = 0; phy_update_link(s); } @@ -292,6 +328,10 @@ static void lan9118_reset(DeviceState *d) s->e2p_data = 0; s->free_timer_start = qemu_get_clock(vm_clock) / 40; + ptimer_stop(s->timer); + ptimer_set_count(s->timer, 0xffff); + s->gpt_cfg = 0xffff; + s->mac_cr = MAC_CR_PRMS; s->mac_hashh = 0; s->mac_hashl = 0; @@ -640,6 +680,8 @@ static void tx_fifo_push(lan9118_state *s, uint32_t val) static uint32_t do_phy_read(lan9118_state *s, int reg) { + uint32_t val; + switch (reg) { case 0: /* Basic Control */ return s->phy_control; @@ -656,6 +698,13 @@ static uint32_t do_phy_read(lan9118_state *s, int reg) case 6: /* Auto-neg Expansion */ return 1; /* TODO 17, 18, 27, 29, 30, 31 */ + case 29: /* Interrupt source. */ + val = s->phy_int; + s->phy_int = 0; + phy_update_irq(s); + return val; + case 30: /* Interrupt mask */ + return s->phy_int_mask; default: BADF("PHY read reg %d\n", reg); return 0; @@ -679,7 +728,11 @@ static void do_phy_write(lan9118_state *s, int reg, uint32_t val) case 4: /* Auto-neg advertisment */ s->phy_advertise = (val & 0x2d7f) | 0x80; break; - /* TODO 17, 18, 27, 29, 30, 31 */ + /* TODO 17, 18, 27, 31 */ + case 30: /* Interrupt mask */ + s->phy_int_mask = val & 0xff; + phy_update_irq(s); + break; default: BADF("PHY write reg %d = 0x%04x\n", reg, val); } @@ -820,6 +873,15 @@ static void lan9118_eeprom_cmd(lan9118_state *s, int cmd, int addr) } } +static void lan9118_tick(void *opaque) +{ + lan9118_state *s = (lan9118_state *)opaque; + if (s->int_en & GPT_INT) { + s->int_sts |= GPT_INT; + } + lan9118_update(s); +} + static void lan9118_writel(void *opaque, target_phys_addr_t offset, uint32_t val) { @@ -835,7 +897,7 @@ static void lan9118_writel(void *opaque, target_phys_addr_t offset, switch (offset) { case CSR_IRQ_CFG: /* TODO: Implement interrupt deassertion intervals. */ - s->irq_cfg = (val & IRQ_EN); + s->irq_cfg = (s->irq_cfg & IRQ_INT) | (val & IRQ_EN); break; case CSR_INT_STS: s->int_sts &= ~val; @@ -905,6 +967,18 @@ static void lan9118_writel(void *opaque, target_phys_addr_t offset, /* Probably just enabling LEDs. */ s->gpio_cfg = val & 0x7777071f; break; + case CSR_GPT_CFG: + if ((s->gpt_cfg ^ val) & GPT_TIMER_EN) { + if (val & GPT_TIMER_EN) { + ptimer_set_count(s->timer, val & 0xffff); + ptimer_run(s->timer, 0); + } else { + ptimer_stop(s->timer); + ptimer_set_count(s->timer, 0xffff); + } + } + s->gpt_cfg = val & (GPT_TIMER_EN | 0xffff); + break; case CSR_WORD_SWAP: /* Ignored because we're in 32-bit mode. */ s->word_swap = val; @@ -988,6 +1062,10 @@ static uint32_t lan9118_readl(void *opaque, target_phys_addr_t offset) return s->pmt_ctrl; case CSR_GPIO_CFG: return s->gpio_cfg; + case CSR_GPT_CFG: + return s->gpt_cfg; + case CSR_GPT_CNT: + return ptimer_get_count(s->timer); case CSR_WORD_SWAP: return s->word_swap; case CSR_FREE_RUN: @@ -1041,6 +1119,7 @@ static NetClientInfo net_lan9118_info = { static int lan9118_init1(SysBusDevice *dev) { lan9118_state *s = FROM_SYSBUS(lan9118_state, dev); + QEMUBH *bh; int i; s->mmio_index = cpu_register_io_memory(lan9118_readfn, @@ -1059,6 +1138,11 @@ static int lan9118_init1(SysBusDevice *dev) s->pmt_ctrl = 1; s->txp = &s->tx_packet; + bh = qemu_bh_new(lan9118_tick, s); + s->timer = ptimer_init(bh); + ptimer_set_freq(s->timer, 10000); + ptimer_set_limit(s->timer, 0xffff, 1); + /* ??? Save/restore. */ return 0; } |