From 536551d75874f0ba7651a1455a295239a5cabe05 Mon Sep 17 00:00:00 2001 From: John Snow Date: Fri, 8 Jun 2018 13:17:36 -0400 Subject: [PATCH] ahci: modify ahci_port_read to use register numbers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: John Snow Reviewed-by: Philippe Mathieu-Daudé Message-id: 20180531222835.16558-3-jsnow@redhat.com Signed-off-by: John Snow --- hw/ide/ahci.c | 38 +++++++++++++++++++------------------- 1 file changed, 19 insertions(+), 19 deletions(-) diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c index 9815a64b5a..fb0e5f1c12 100644 --- a/hw/ide/ahci.c +++ b/hw/ide/ahci.c @@ -93,41 +93,42 @@ static const char *AHCIPortIRQ_lookup[AHCI_PORT_IRQ__COUNT] = { [AHCI_PORT_IRQ_BIT_CPDS] = "CPDS" }; -static uint32_t ahci_port_read(AHCIState *s, int port, int offset) +static uint32_t ahci_port_read(AHCIState *s, int port, int offset) { uint32_t val; - AHCIPortRegs *pr; - pr = &s->dev[port].port_regs; + AHCIPortRegs *pr = &s->dev[port].port_regs; + enum AHCIPortReg regnum = offset / sizeof(uint32_t); + assert(regnum < (AHCI_PORT_ADDR_OFFSET_LEN / sizeof(uint32_t))); - switch (offset) { - case PORT_LST_ADDR: + switch (regnum) { + case AHCI_PORT_REG_LST_ADDR: val = pr->lst_addr; break; - case PORT_LST_ADDR_HI: + case AHCI_PORT_REG_LST_ADDR_HI: val = pr->lst_addr_hi; break; - case PORT_FIS_ADDR: + case AHCI_PORT_REG_FIS_ADDR: val = pr->fis_addr; break; - case PORT_FIS_ADDR_HI: + case AHCI_PORT_REG_FIS_ADDR_HI: val = pr->fis_addr_hi; break; - case PORT_IRQ_STAT: + case AHCI_PORT_REG_IRQ_STAT: val = pr->irq_stat; break; - case PORT_IRQ_MASK: + case AHCI_PORT_REG_IRQ_MASK: val = pr->irq_mask; break; - case PORT_CMD: + case AHCI_PORT_REG_CMD: val = pr->cmd; break; - case PORT_TFDATA: + case AHCI_PORT_REG_TFDATA: val = pr->tfdata; break; - case PORT_SIG: + case AHCI_PORT_REG_SIG: val = pr->sig; break; - case PORT_SCR_STAT: + case AHCI_PORT_REG_SCR_STAT: if (s->dev[port].port.ifs[0].blk) { val = SATA_SCR_SSTATUS_DET_DEV_PRESENT_PHY_UP | SATA_SCR_SSTATUS_SPD_GEN1 | SATA_SCR_SSTATUS_IPM_ACTIVE; @@ -135,19 +136,18 @@ static uint32_t ahci_port_read(AHCIState *s, int port, int offset) val = SATA_SCR_SSTATUS_DET_NODEV; } break; - case PORT_SCR_CTL: + case AHCI_PORT_REG_SCR_CTL: val = pr->scr_ctl; break; - case PORT_SCR_ERR: + case AHCI_PORT_REG_SCR_ERR: val = pr->scr_err; break; - case PORT_SCR_ACT: + case AHCI_PORT_REG_SCR_ACT: val = pr->scr_act; break; - case PORT_CMD_ISSUE: + case AHCI_PORT_REG_CMD_ISSUE: val = pr->cmd_issue; break; - case PORT_RESERVED: default: val = 0; }