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X-Received-From: 2a00:1450:400c:c09::22f Subject: [Qemu-devel] [PULL 62/74] i2c: pm_smbus: Clean up some style issues X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Corey Minyard , "Michael S. Tsirkin" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDMRC_1 RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Corey Minyard Fix some spacing issues, remove extraneous comments, add some defines instead of hard-coding numbers. Signed-off-by: Corey Minyard Cc: Michael S. Tsirkin Cc: Paolo Bonzini Message-Id: <1534796770-10295-2-git-send-email-minyard@acm.org> Signed-off-by: Paolo Bonzini --- hw/i2c/pm_smbus.c | 58 ++++++++++++++++++++++++++++++++++++---------------= ---- 1 file changed, 38 insertions(+), 20 deletions(-) diff --git a/hw/i2c/pm_smbus.c b/hw/i2c/pm_smbus.c index 0d26e0f..83c2377 100644 --- a/hw/i2c/pm_smbus.c +++ b/hw/i2c/pm_smbus.c @@ -22,8 +22,6 @@ #include "hw/i2c/pm_smbus.h" #include "hw/i2c/smbus.h" =20 -/* no save/load? */ - #define SMBHSTSTS 0x00 #define SMBHSTCNT 0x02 #define SMBHSTCMD 0x03 @@ -32,19 +30,34 @@ #define SMBHSTDAT1 0x06 #define SMBBLKDAT 0x07 =20 -#define STS_HOST_BUSY (1) -#define STS_INTR (1<<1) -#define STS_DEV_ERR (1<<2) -#define STS_BUS_ERR (1<<3) -#define STS_FAILED (1<<4) -#define STS_SMBALERT (1<<5) -#define STS_INUSE_STS (1<<6) -#define STS_BYTE_DONE (1<<7) +#define STS_HOST_BUSY (1 << 0) +#define STS_INTR (1 << 1) +#define STS_DEV_ERR (1 << 2) +#define STS_BUS_ERR (1 << 3) +#define STS_FAILED (1 << 4) +#define STS_SMBALERT (1 << 5) +#define STS_INUSE_STS (1 << 6) +#define STS_BYTE_DONE (1 << 7) /* Signs of successfully transaction end : * ByteDoneStatus =3D 1 (STS_BYTE_DONE) and INTR =3D 1 (STS_INTR ) */ =20 -//#define DEBUG +#define CTL_INTREN (1 << 0) +#define CTL_KILL (1 << 1) +#define CTL_LAST_BYTE (1 << 5) +#define CTL_START (1 << 6) +#define CTL_PEC_EN (1 << 7) +#define CTL_RETURN_MASK 0x1f + +#define PROT_QUICK 0 +#define PROT_BYTE 1 +#define PROT_BYTE_DATA 2 +#define PROT_WORD_DATA 3 +#define PROT_PROC_CALL 4 +#define PROT_BLOCK_DATA 5 +#define PROT_I2C_BLOCK_DATA 6 + +/*#define DEBUG*/ =20 #ifdef DEBUG # define SMBUS_DPRINTF(format, ...) printf(format, ## __VA_ARGS__) @@ -70,11 +83,12 @@ static void smb_transaction(PMSMBus *s) if ((s->smb_stat & STS_DEV_ERR) !=3D 0) { goto error; } + switch(prot) { - case 0x0: + case PROT_QUICK: ret =3D smbus_quick_command(bus, addr, read); goto done; - case 0x1: + case PROT_BYTE: if (read) { ret =3D smbus_receive_byte(bus, addr); goto data8; @@ -82,7 +96,7 @@ static void smb_transaction(PMSMBus *s) ret =3D smbus_send_byte(bus, addr, cmd); goto done; } - case 0x2: + case PROT_BYTE_DATA: if (read) { ret =3D smbus_read_byte(bus, addr, cmd); goto data8; @@ -91,16 +105,17 @@ static void smb_transaction(PMSMBus *s) goto done; } break; - case 0x3: + case PROT_WORD_DATA: if (read) { ret =3D smbus_read_word(bus, addr, cmd); goto data16; } else { - ret =3D smbus_write_word(bus, addr, cmd, (s->smb_data1 << 8) |= s->smb_data0); + ret =3D smbus_write_word(bus, addr, cmd, + (s->smb_data1 << 8) | s->smb_data0); goto done; } break; - case 0x5: + case PROT_I2C_BLOCK_DATA: if (read) { ret =3D smbus_read_block(bus, addr, cmd, s->smb_data); goto data8; @@ -158,8 +173,9 @@ static void smb_ioport_writeb(void *opaque, hwaddr addr= , uint64_t val, break; case SMBHSTCNT: s->smb_ctl =3D val; - if (val & 0x40) + if (s->smb_ctl & CTL_START) { smb_transaction_start(s); + } break; case SMBHSTCMD: s->smb_cmd =3D val; @@ -198,7 +214,7 @@ static uint64_t smb_ioport_readb(void *opaque, hwaddr a= ddr, unsigned width) break; case SMBHSTCNT: s->smb_index =3D 0; - val =3D s->smb_ctl & 0x1f; + val =3D s->smb_ctl & CTL_RETURN_MASK; break; case SMBHSTCMD: val =3D s->smb_cmd; @@ -221,7 +237,9 @@ static uint64_t smb_ioport_readb(void *opaque, hwaddr a= ddr, unsigned width) val =3D 0; break; } - SMBUS_DPRINTF("SMB readb port=3D0x%04" HWADDR_PRIx " val=3D0x%02x\n", = addr, val); + SMBUS_DPRINTF("SMB readb port=3D0x%04" HWADDR_PRIx " val=3D0x%02x\n", + addr, val); + return val; } =20 --=20 1.8.3.1